CN109256290B - Double-acting switch device and fracture transmission device thereof - Google Patents
Double-acting switch device and fracture transmission device thereof Download PDFInfo
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- CN109256290B CN109256290B CN201811183678.2A CN201811183678A CN109256290B CN 109256290 B CN109256290 B CN 109256290B CN 201811183678 A CN201811183678 A CN 201811183678A CN 109256290 B CN109256290 B CN 109256290B
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- connecting piece
- side connecting
- driven side
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- nozzle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a double-acting switch device and a fracture transmission device thereof, wherein the fracture transmission device comprises a nozzle, a driving side connecting piece, a driven side connecting piece and an insulating connecting piece, wherein two ends of the insulating connecting piece are respectively connected with the driving side connecting piece and the driven side connecting piece, a through hole-shaped cavity for mounting the nozzle is arranged in the insulating connecting piece, and the insulating connecting piece and the nozzle are limited and coaxially fixed through the driving side connecting piece and the driven side connecting piece. Through establishing fracture transmission at the spout outside cover, realize the transmission through fracture transmission and connect, initiative side connecting piece and driven side connecting piece pass through insulating connecting piece and connect, and the spout no longer bears the transmission power of motion in-process, avoids the great easy condition of damaging of spout bearing capacity, double acting switchgear's life extension. The fracture transmission device has improved connection strength, can be used in double-acting switch equipment with higher voltage grade, and improves the universality of the fracture transmission device.
Description
Technical Field
The invention relates to the technical field of switch fracture transmission protection, in particular to a fracture transmission device of double-action switch equipment. The invention also relates to a double-action switching device comprising the above-mentioned break transmission.
Background
The double-acting switch equipment has two groups of parts moving synchronously or asynchronously under the action of the same power source, the fracture transmission device of the double-acting switch equipment is used for completing the connection of two moving parts with different electric potentials at the arc extinguishing unit, the driving part of the fracture transmission device provides power, and the driven part is driven by the fracture transmission device to move correspondingly. The spout is used as a connecting piece in the fracture transmission device, the spout is connected with the driving piece and the driven side transmission device, and the driving piece drives the driven piece to do corresponding movement through the fracture transmission device and the driven side transmission device
However, the spout used in the prior art has poor mechanical properties as a material for the spout, so that the spout has low mechanical reliability as a connector for the break actuator in the double-action switchgear, resulting in a short service life of the double-action switchgear.
Therefore, how to prolong the service life of the double-acting switch device is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a fracture transmission device of double-action switch equipment, which prolongs the service life of the double-action switch equipment. Another object of the invention is to provide a double-action switching device comprising the above-mentioned break transmission.
In order to achieve the purpose, the invention provides a fracture transmission device of double-acting switch equipment, which comprises a nozzle, a driving side connecting piece, a driven side connecting piece and an insulating connecting piece, wherein two ends of the insulating connecting piece are respectively connected with the driving side connecting piece and the driven side connecting piece, a through hole-shaped cavity for mounting the nozzle is arranged in the insulating connecting piece, and the nozzle and the insulating connecting piece are limited and coaxially fixed through the driving side connecting piece and the driven side connecting piece.
Preferably, the driving side connecting piece is sleeved on the outer side of one end of the nozzle, and a first limiting protrusion capable of being connected with the driving side connecting end of the insulating connecting piece is arranged on the inner surface of the first end of the driving side connecting piece.
Preferably, a second end of the driving side connecting piece, which is opposite to the first end, is provided with a driving side arc-shaped surface for the end part of the insulating connecting piece to slide into the first limiting protrusion.
Preferably, the outer surface of the first end of the driving side connecting piece is provided with a spout limiting step for limiting the spout.
Preferably, the tip of driven side connecting piece be equipped with can with the spacing arch of second that the driven side link of insulating connecting piece is connected, the spacing arch of second with the spout is equipped with driven side sealing washer, driven side connecting piece is equipped with and is used for supplying the insulating connecting piece tip slides in the driven side arcwall face of the spacing protruding position of second.
Preferably, the one end of spout pass through the initiative side connecting piece with insulating connecting piece fixed connection's stiff end, the other end of spout be with the free end of driven side connecting piece butt.
Preferably, the insulating connecting piece, the driving side connecting piece, the driven side connecting piece and the nozzle are in sealing connection, and an exhaust hole is formed in the side wall, opposite to the nozzle, of the insulating connecting piece.
Preferably, the inner surface and/or the outer surface of the insulating connecting member is provided with a polytetrafluoroethylene layer.
A double-acting switch device comprises a driving part, a driven side transmission device and the fracture transmission device, wherein the driving side connection part is connected with the driving part, the driven side connection part is connected with the driven side transmission device, and a nozzle penetrates through the through hole.
Preferably, the driving side sealing ring is further included, and two ends of the driving side sealing ring are respectively connected with the nozzle and the driving part.
In the technical scheme, the fracture transmission device of the double-acting switch equipment comprises a nozzle, a driving side connecting piece, a driven side connecting piece and an insulating connecting piece, wherein two ends of the insulating connecting piece are respectively connected with the driving side connecting piece and the driven side connecting piece, a through hole-shaped cavity for mounting the nozzle is arranged in the insulating connecting piece, and the insulating connecting piece and the nozzle are limited and coaxially fixed through the driving side connecting piece and the driven side connecting piece. When installing fracture transmission, install the spout at through-hole form cavity, initiative side connecting piece and initiative piece fixed connection, driven side connecting piece is connected with driven side transmission, and edge connecting piece passes through initiative side connecting piece and driven side connecting piece with the spout and is connected.
According to the description, in the fracture transmission device provided by the application, through establishing the fracture transmission device at the spout outside cover, the spout is installed at through-hole form cavity, initiative side connecting piece and driven side connecting piece are connected with initiative piece and driven side transmission device respectively, realize the transmission through fracture transmission device and connect, initiative side connecting piece and driven side connecting piece pass through insulating connecting piece and connect, the spout no longer bears the transmission power in the motion process, avoid the great easy damaged condition of spout bearing capacity, therefore, the fracture transmission device provided by the application has effectively prolonged double acting switchgear's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a double-acting switching device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fracture transmission device provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an active-side connection component according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a driven-side connection member according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an insulating connecting member according to an embodiment of the present invention.
Wherein in FIGS. 1-5: 1-insulating connecting piece, 11-exhaust hole, 2-nozzle, 3-driving side connecting piece, 31-driving side arc surface, 32-first limiting protrusion, 33-nozzle limiting step, 4-driven side connecting piece, 41-driven side arc surface, 42-second limiting protrusion, 5-driving piece, 6-driven piece, 7-driven side transmission device, 8-driving side sealing ring and 9-driven side sealing ring.
Detailed Description
The core of the invention is to provide a fracture transmission device of double-acting switch equipment, which prolongs the service life of the double-acting switch equipment. Another core of the invention is to provide a double-action switching device comprising the above-mentioned break transmission.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 5, in one embodiment, a break actuator of a double-action switching device according to an embodiment of the present invention, namely, the double-acting arc extinguish chamber structure comprises a nozzle 2, a driving side connecting piece 3, a driven side connecting piece 4 and an insulating connecting piece 1, wherein the nozzle 2 is fixedly connected with the insulating connecting piece 1, specifically, the insulating connecting piece 1 is an insulating cylinder, the driving side connecting piece 3 and the driven side connecting piece 4 are metal pieces, of course, in the specific assembling process, the driving side connecting member 3 and the driven side connecting member 4 are not limited to metal members, wherein the both ends of insulating connecting piece 1 are connected with initiative side connecting piece 3 and driven side connecting piece 4 respectively, are equipped with the through-hole form cavity that supplies spout 2 to install in the insulating connecting piece 1, and is concrete, in order to facilitate processing insulating connecting piece 1, preferably, the through-hole dress cavity is cylindrical cavity. For the convenience of integral installation, preferably, the driving side connecting piece 3 and the driven side connecting piece 4 are both cylindrical structures sleeved outside the nozzle 2.
To facilitate mounting of the spout 2, it is preferable that the spout 2 is adhered to the inner surface of the insulating connection member 1.
Specifically, insulating connecting piece 1 is the tubular structure, and insulating connecting piece 1 can formula of as an organic whole shaping structure, also can be formed by the multistage processing, for the ease of processing and equipment insulating connecting piece 1, preferably, insulating connecting piece 1 is cylinder tubular structure. Of course, in the actual manufacturing process, the insulating connection member 1 may be provided in a non-cylindrical shape, such as a rectangular cylinder, an oval cylinder, or the like, as needed.
Preferably, the inner surface and/or the outer surface of the insulating connecting piece 1 are/is provided with polytetrafluoroethylene layers, and as polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property and good ageing resistance, the inner surface and/or the outer surface of the insulating connecting piece 1 are/is provided with arc-resistant coatings, specifically polytetrafluoroethylene layers, so that the service life of the insulating connecting piece 1 is prolonged, and the use safety of double-action switchgear is improved.
When the fracture transmission device is installed, the nozzle 2 is installed in the through hole-shaped cavity, the nozzle 2 and the insulating connecting piece 1 are limited and coaxially fixed through the driving side connecting piece 3 and the driven side connecting piece 4, the driven side connecting piece 4 is connected with the driven side transmission device 7, specifically, the driven connecting piece is fixedly connected with the driven side transmission device 7 of the driven piece 6, and finally the driven side transmission device 7 is connected with the driven side transmission device 6, so that the driving piece 5, the transmission device and the driven piece 6 of the double-action switch device are connected, and a complete motion chain is formed. The driving part 5 of the arc extinguish chamber reciprocates under the driving of the mechanism, the motion of the driving part 5 is transmitted to the fracture transmission device through the connecting piece structure, and then the fracture transmission device drives the driven part 6 to reciprocate, so that the switching-on and switching-off actions of the arc extinguish chamber are completed.
It can be known from the above description, in the fracture transmission that this application embodiment provided, through establish fracture transmission at the 2 outside covers of spout, initiative side connecting piece 3 and driven side connecting piece 4 are connected with initiative piece 5 and driven side transmission 7 respectively, realize the transmission through fracture transmission and connect, initiative side connecting piece 3 and driven side connecting piece 7 are connected through insulating connecting piece 1, spout 2 no longer bears the transmission power in the motion process, avoid spout 2 to bear the great condition of easy damage of the great ability of bearing, increase on the basis that does not change original double acting switchgear arc extinguishing unit structure and have excellent and the high insulating connecting piece 1 of mechanical strength of electrical insulation performance, insulating connecting piece 1 replaces spout 2 to connect initiative piece 5 and driven side transmission 7, bear the transmission power and realize electrical insulation. Therefore, the fracture transmission device provided by the application effectively prolongs the service life of the double-action switch equipment.
On the other hand, the fracture transmission device has improved connection strength, so that the fracture transmission device can be used in double-acting switch equipment with higher voltage grade, and the universality of the double-acting transmission device is improved.
Preferably, the driving side connecting member 3 is sleeved outside one end of the nozzle 2, and the inner surface of the first end of the driving side connecting member 3 is provided with a first limiting protrusion 32 capable of being connected with the driving side connecting end of the insulating connecting member 1. In order to improve the connection stability, preferably, the first limiting protrusion 32 is of an annular structure, and the insulating connecting piece 1 and the driving side connecting piece 3 are conveniently installed in place by arranging the first limiting protrusion 32, so that effective fixation is realized. In order to facilitate the processing of the fracture transmission device, preferably, the driving side connecting piece 3 and the first limiting protrusion 32 are of an integrally formed structure.
More preferably, a second end of the active side connecting piece 3 opposite to the first end is provided with an active side arc surface 31 for sliding the end of the insulating connecting piece 1 into the position of the first limiting protrusion 32. That is, as shown in fig. 3, the arc-shaped active side surface 31 at the right end of the active side connecting member 3 may be a circular surface, and the arc-shaped active side surface 31 has the function of uniform fracture electric field and is convenient for installing the insulating connecting member 1.
In order to improve the connection stability, it is preferable that the outer surface of the first end of the driving side connecting member 3 is provided with a spout restricting step 33 for restricting the spout 2. As shown in fig. 2 and 3, a spout retention step 33 may be used to assist in completing the clamping securement of the primary contact and the spout 2.
Furthermore, a second limit bulge 42 capable of being connected with the driven side connecting end of the insulating connecting piece 1 is arranged at the end part of the driven side connecting piece 4, and a driven side sealing ring 9 is arranged between the second limit bulge 42 and the nozzle 2. Through setting up spacing arch 42 of second, be convenient for with insulating connecting piece 1 and driven side connecting piece 4 installation target in place, through setting up driven side sealing washer 9 and initiative side sealing washer 8, realize the seal installation of the stiff end and the free end of spout 2. The driving side connecting piece 3 has a composite function and simultaneously meets the functions of the fixed nozzle 2 and the insulating connecting piece 1. Driven side connecting piece 4 has the combined function, satisfies even fracture electric field, direction and fixed insulating connecting piece 1's effect simultaneously. The nozzle 2 is positioned in the cavity of the insulating connecting piece 1 and does not bear the transmission force any more. The left side and the right side of the nozzle 2 are respectively provided with a sealing ring between adjacent parts to form a closed channel, so that the insulating connecting piece 1 is completely isolated outside the arc channel, and the insulating failure caused by the insulation damage of the insulating connecting piece 1 due to the single or combined action of the arc, hot air and arc decomposer in the switching process of the switch equipment on the insulating connecting piece 1 is avoided.
Further, the driven side connecting piece 4 is provided with a driven side arc-shaped surface 41 for sliding the end part of the insulating connecting piece 1 into the position of the second limiting bulge 42. As shown in fig. 4, the driven side arc surface 41 at the left end may be specifically an arc surface, and the driven side arc surface 41 is used for equalizing the fracture electric field and simultaneously realizing the installation guidance of the insulating connector 1.
In order to further extend the service life of the nozzle, it is preferable that one end of the nozzle 2 is a fixed end fixedly connected to the insulating connector 1 via the driving-side connector 3, and the other end of the nozzle 2 is a free end abutting against the driven-side connector 4.
On the basis of the above solutions, preferably, the insulating connector 1, the driving side connector 3, the driven side connector 4, and the spout 2 are hermetically connected, and the side wall of the insulating connector 1 facing the spout 2 is provided with an exhaust hole 11. By providing the exhaust holes 11 on the insulating connector 1, the gas in the space between the spout 2 and the insulating cylinder is facilitated to be exhausted. Specifically, the number of exhaust holes 11 can be one, two or more, etc., in the specific use process, in order to facilitate gas discharge, and guarantee overall connection strength, preferably, exhaust holes 11 are two, and two exhaust holes 11 are arranged relatively.
The double-acting switch equipment comprises a driving part 5, a driven part 6 and a fracture transmission device, wherein the fracture transmission device is any one of the fracture transmission devices, a driving side connecting part 3 is connected with the driving part 5, a driven side connecting part 4 is connected with a driven part 6 side transmission part, and a nozzle 2 penetrates through a through hole.
In order to improve the tightness, the double-acting switching device preferably further comprises a driving side sealing ring 8 having both ends connected to the spout 2 and the driving member 5, respectively.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The fracture transmission device of the double-acting switch equipment is characterized by comprising a nozzle (2), a driving side connecting piece (3), a driven side connecting piece (4) and an insulating connecting piece (1) of which two ends are respectively connected with the driving side connecting piece (3) and the driven side connecting piece (4), wherein a through hole-shaped cavity for mounting the nozzle (2) is arranged in the insulating connecting piece (1), and the nozzle (2) and the insulating connecting piece (1) are limited and coaxially fixed through the driving side connecting piece (3) and the driven side connecting piece (4); the driven side connecting piece (4) is connected with a driven side transmission device (7) of the double-acting switch equipment, and the driving side connecting piece (3) is connected with a driving piece (5) of the double-acting switch equipment;
one end of the nozzle (2) is a fixed end fixedly connected with the insulating connecting piece (1) through the driving side connecting piece (3), and the other end of the nozzle (2) is a free end abutted against the driven side connecting piece (4);
the insulating connecting piece (1) replaces the nozzle (2) to connect the driving piece (5) and the driven side transmission device (7) and bear transmission force;
a second limiting bulge (42) capable of being connected with the driven side connecting end of the insulating connecting piece (1) is arranged at the end part of the driven side connecting piece (4), a driven side sealing ring (9) is arranged between the second limiting bulge (42) and the nozzle (2), and a driven side arc-shaped surface (41) used for enabling the end part of the insulating connecting piece (1) to slide into the second limiting bulge (42) is arranged on the driven side connecting piece (4);
the device also comprises a driving side sealing ring (8) with one end connected with the nozzle (2) and the other end connected with the driving part (5).
2. The fracture transmission device as claimed in claim 1, wherein the driving side connecting piece (3) is sleeved outside one end of the spout (2), and a first limiting protrusion (32) capable of being connected with the driving side connecting end of the insulating connecting piece (1) is arranged on the inner surface of the first end of the driving side connecting piece (3).
3. The fracture transmission device as claimed in claim 2, wherein a second end of the active side connecting piece (3) opposite to the first end is provided with an active side arc-shaped surface (31) for sliding the end of the insulating connecting piece (1) into the position of the first limiting protrusion (32).
4. The fracture transmission device as claimed in claim 2, wherein the outer surface of the first end of the driving side connecting piece (3) is provided with a spout limiting step (33) for limiting the spout (2).
5. The fracture transmission device according to any one of claims 1 to 4, wherein the insulating connecting piece (1), the driving side connecting piece (3), the driven side connecting piece (4) and the nozzle (2) are hermetically connected, and a side wall of the insulating connecting piece (1) opposite to the nozzle (2) is provided with an exhaust hole (11).
6. A fracture transmission according to any of claims 1-4, wherein the inner and/or outer surface of the insulating connector (1) is provided with a polytetrafluoroethylene layer.
7. Double-action switching device comprising a driving member (5), a driven side transmission (7), characterized in that it further comprises a break transmission according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183678.2A CN109256290B (en) | 2018-10-11 | 2018-10-11 | Double-acting switch device and fracture transmission device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183678.2A CN109256290B (en) | 2018-10-11 | 2018-10-11 | Double-acting switch device and fracture transmission device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109256290A CN109256290A (en) | 2019-01-22 |
| CN109256290B true CN109256290B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811183678.2A Active CN109256290B (en) | 2018-10-11 | 2018-10-11 | Double-acting switch device and fracture transmission device thereof |
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| CN (1) | CN109256290B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7207479U (en) * | 1972-02-28 | 1972-09-28 | Siemens Ag | Arrangement for interrupting an arc |
| DE19816505A1 (en) * | 1998-04-14 | 1999-10-21 | Asea Brown Boveri | Circuit breaker |
| DE10006167B4 (en) * | 2000-02-11 | 2009-07-23 | Abb Schweiz Ag | breakers |
| FR2962847B1 (en) * | 2010-07-16 | 2012-08-17 | Areva T & D Sas | CUTTING CHAMBER EQUIPMENT FOR TWO CONFINED CONTACT ELECTRODES |
| US20140175061A1 (en) * | 2012-12-20 | 2014-06-26 | Abb Technology Ag | Electrical switching device with a triple motion contact arrangement |
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- 2018-10-11 CN CN201811183678.2A patent/CN109256290B/en active Active
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| CN109256290A (en) | 2019-01-22 |
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