CN217690941U - Slow-breaking and slow-closing device of circuit breaker - Google Patents
Slow-breaking and slow-closing device of circuit breaker Download PDFInfo
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- CN217690941U CN217690941U CN202220007480.4U CN202220007480U CN217690941U CN 217690941 U CN217690941 U CN 217690941U CN 202220007480 U CN202220007480 U CN 202220007480U CN 217690941 U CN217690941 U CN 217690941U
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- supporting seat
- thrust bearing
- slow
- adjusting nut
- circuit breaker
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Abstract
The utility model relates to a slow-dividing slow-closing device of circuit breaker, its characterized in that: the device comprises a mounting rack, a hook arm, a screw rod, an adjusting nut, a limiting rod, a supporting seat and a thrust bearing; the round hole for accommodating the lead screw to pass through is arranged on the supporting seat to mount the lead screw, the thrust bearing is arranged in the supporting seat to support the rotation of the adjusting nut, and the adjusting nut drives the lead screw to displace along the axis direction so as to drive the hook arm to do linear motion; the purpose of slow opening and closing of the moving contact and the static contact of the circuit breaker is achieved, and the circuit breaker has very important significance for the first opening and closing operation of a product; meanwhile, the screw rod can be stopped at any position, so that the purposes of installation, debugging and maintenance of operators are facilitated.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a slow-opening and slow-closing device of a circuit breaker.
Background
The existing circuit breaker comprises a moving contact, a fixed contact and an operating mechanism for driving the moving contact and the fixed contact to be switched on and off, wherein the operating mechanism is arranged on a mechanism box, a transmission shaft is further rotatably arranged on the mechanism box, and a power output end of the transmission shaft is in transmission connection with the moving contact through a transmission mechanism. During operation, operating device realizes the divide-shut brake of moving, static contact through the reciprocal rotation that drives the transmission shaft, however at the installation of circuit breaker, debugging and maintenance in-process, in order to inspect the motion state of explosion chamber or mechanism, prevent the jamming or rub phenomenon to avoid normal operation to destroy transmission position part, all hope the transmission shaft can stop at required optional position at will, so that install, overhaul and observe the motion process of this mechanism, seek the reason of going wrong. In the existing circuit breaker, the action process of the operating mechanism can not be controlled, so that the transmission shaft can not be slowly separated, slowly closed or accurately positioned, and a lot of inconvenience is brought to installation, debugging and overhauling.
Disclosure of Invention
The invention aims to solve the technical problem of providing a slow opening and slow closing device of a circuit breaker, which can realize slow opening and slow closing of the circuit breaker.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a slow-separating slow-closing device of circuit breaker, its innovation point lies in: the device comprises a mounting rack, a hook arm, a screw rod, an adjusting nut, a limiting rod, a supporting seat and a thrust bearing;
the mounting frame comprises a pair of parallel connecting plates, and a limiting rod mounting hole and a supporting seat mounting hole are respectively formed in the connecting plates along the vertical direction; the limiting rod is horizontally arranged at a limiting rod mounting hole on the connecting plate, rotating shafts are arranged on two side edges of the supporting seat, and the supporting seat is arranged in a supporting seat mounting hole on the connecting plate through the rotating shafts;
the supporting seat is of a cuboid shell-shaped structure and comprises a thrust bearing seat and an end cover; the end cover is connected to the thrust bearing seat through a bolt, a cylindrical cavity for accommodating the thrust bearing is arranged in the thrust bearing seat, and round holes for accommodating a lead screw to pass through are formed in the thrust bearing seat and the end cover;
the thrust bearing is arranged in a cylindrical cavity of the thrust bearing seat of the supporting seat, one end of the adjusting nut is provided with a stepped surface, the stepped surface is positioned in the cylindrical cavities of the end cover and the thrust bearing seat and is tightly propped against the thrust bearing, and the end cover is tightly pressed on the stepped surface of the adjusting nut; the other end of the adjusting nut extends out of the end cover; the screw rod and the adjusting nut are matched to penetrate through the supporting seat, and the adjusting nut is rotated to drive the screw rod to move along the axis direction;
the hanger arm sets up in one of lead screw and serves, and the hanger arm follows the lead screw and removes and simultaneously follows the supporting seat and swing in vertical plane at the axis direction of lead screw.
Further, shaft check rings are arranged at the joint of the limiting rod and the connecting plate and the joint of the rotating shaft on the side edge of the supporting seat and the connecting plate.
Furthermore, a connecting pin mounting plate is vertically arranged on the side edge of the connecting plate, and a connecting pin is arranged on the connecting pin mounting plate and is perpendicular to the direction of the lead screw.
The invention has the advantages that:
1) According to the invention, the round hole for accommodating the lead screw to pass through is arranged on the supporting seat to install the lead screw, the thrust bearing is arranged in the supporting seat to support the rotation of the adjusting nut, and the adjusting nut drives the lead screw to displace along the axis direction, so that the hook arm is driven to do linear motion; the purpose of slow opening and closing of the moving contact and the static contact of the circuit breaker is achieved, and the circuit breaker has very important significance for the first opening and closing operation of a product; meanwhile, the screw rod can be stopped at any position, so that the purposes of installation, debugging and maintenance of operators are facilitated.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of a slow opening and closing device of a circuit breaker according to the present invention.
Fig. 2 is a side view of a slow-opening and slow-closing apparatus of a circuit breaker according to the present invention.
Fig. 3 is a partial cross-sectional view of a slow opening and closing apparatus of a circuit breaker according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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 or 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, 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 absolutely horizontal or hanging, but 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 and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The slow-separating slow-closing device of the circuit breaker shown in fig. 1 to fig. 3 comprises a mounting frame 1, a hook arm 2, a screw rod 3, an adjusting nut 4, a limiting rod 5, a supporting seat 6 and a thrust bearing 7.
The mounting frame 1 comprises a pair of parallel connecting plates, and a limiting rod mounting hole and a supporting seat mounting hole are respectively formed in the pair of connecting plates along the vertical direction; the limiting rod 5 is horizontally arranged at a limiting rod mounting hole on the connecting plate, rotary shafts are arranged on two side edges of the supporting seat 6, and the supporting seat 6 is mounted in the supporting seat mounting hole on the connecting plate through the rotary shafts.
The support seat 6 is a cuboid shell-shaped structure and comprises a thrust bearing seat 61 and an end cover 62; the end cover 62 is connected to the thrust bearing seat 61 through a bolt, a cylindrical cavity for accommodating the thrust bearing 7 is arranged in the thrust bearing seat 61, and round holes for accommodating the lead screw 3 to pass through are formed in the thrust bearing seat 61 and the end cover.
The thrust bearing 7 is arranged in a cylindrical cavity of a thrust bearing seat 61 of the supporting seat, one end of the adjusting nut 4 is provided with a step surface, the step surface is positioned in the cylindrical cavities of the end cover 62 and the thrust bearing seat 61 and tightly propped against the thrust bearing 7, and the end cover 62 is tightly pressed on the step surface of the adjusting nut 4; the other end of the adjusting nut 4 extends out of the end cover 62; the lead screw 3 passes through the supporting seat 6 in cooperation with the adjusting nut 4, and the lead screw 3 is driven to move along the axis direction by rotating the adjusting nut 4.
The hook arm 2 is arranged at one end of the screw rod 3, and the hook arm 2 moves along the axis direction of the screw rod 3 along with the screw rod 3 and swings in a vertical plane along with the supporting seat 6.
The joint of the limiting rod 5 and the connecting plate and the joint of the rotating shaft on the side edge of the supporting seat 6 and the connecting plate are provided with shaft check rings.
A connecting pin mounting plate 8 is vertically arranged on the side edge of the connecting plate, and a connecting pin is arranged on the connecting pin mounting plate and is vertical to the direction of the screw rod 3.
The working principle of the invention is as follows: the round hole for accommodating the lead screw to pass through is arranged on the supporting seat to mount the lead screw, the thrust bearing is arranged in the supporting seat to support the rotation of the adjusting nut, and the adjusting nut drives the lead screw to displace along the axis direction so as to drive the hook arm to do linear motion; the purpose of slow opening and closing of the moving contact and the static contact of the circuit breaker is achieved, and the circuit breaker has very important significance for the first opening and closing operation of a product; meanwhile, the screw rod can be stopped at any position, so that the purposes of installation, debugging and maintenance of operators are facilitated.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a slow minute slow-closing device of circuit breaker which characterized in that: the device comprises a mounting rack, a hook arm, a screw rod, an adjusting nut, a limiting rod, a supporting seat and a thrust bearing;
the mounting frame comprises a pair of parallel connecting plates, and a limiting rod mounting hole and a supporting seat mounting hole are respectively formed in the connecting plates along the vertical direction; the limiting rod is horizontally arranged at a limiting rod mounting hole on the connecting plate, rotating shafts are arranged on two side edges of the supporting seat, and the supporting seat is arranged in a supporting seat mounting hole on the connecting plate through the rotating shafts;
the supporting seat is of a cuboid shell-shaped structure and comprises a thrust bearing seat and an end cover; the end cover is connected to the thrust bearing seat through a bolt, a cylindrical cavity for accommodating the thrust bearing is arranged in the thrust bearing seat, and round holes for accommodating a lead screw to pass through are formed in the thrust bearing seat and the end cover;
the thrust bearing is arranged in a cylindrical cavity of the thrust bearing seat of the supporting seat, one end of the adjusting nut is provided with a stepped surface, the stepped surface is positioned in the cylindrical cavities of the end cover and the thrust bearing seat and is tightly propped against the thrust bearing, and the end cover is tightly pressed on the stepped surface of the adjusting nut; the other end of the adjusting nut extends out of the end cover; the screw rod and the adjusting nut are matched to penetrate through the supporting seat, and the adjusting nut is rotated to drive the screw rod to move along the axis direction;
the hanger arm sets up in one of lead screw and serves, and the hanger arm follows the lead screw and removes and simultaneously follows the supporting seat and swing in vertical plane at the axis direction of lead screw.
2. The slow-opening and slow-closing device of the circuit breaker as claimed in claim 1, wherein: and shaft check rings are arranged at the joint of the limiting rod and the connecting plate and the joint of the rotating shaft at the side edge of the supporting seat and the connecting plate.
3. The slow-opening and slow-closing device of the circuit breaker as claimed in claim 1, wherein: and a connecting pin mounting plate is vertically arranged on the side edge of the connecting plate, and a connecting pin is arranged on the connecting pin mounting plate and is vertical to the direction of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220007480.4U CN217690941U (en) | 2022-01-05 | 2022-01-05 | Slow-breaking and slow-closing device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220007480.4U CN217690941U (en) | 2022-01-05 | 2022-01-05 | Slow-breaking and slow-closing device of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217690941U true CN217690941U (en) | 2022-10-28 |
Family
ID=83727307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220007480.4U Active CN217690941U (en) | 2022-01-05 | 2022-01-05 | Slow-breaking and slow-closing device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217690941U (en) |
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2022
- 2022-01-05 CN CN202220007480.4U patent/CN217690941U/en active Active
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