CN112713054A - Pneumatic arc extinguish chamber capable of moving in two directions - Google Patents
Pneumatic arc extinguish chamber capable of moving in two directions Download PDFInfo
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- CN112713054A CN112713054A CN202011448802.0A CN202011448802A CN112713054A CN 112713054 A CN112713054 A CN 112713054A CN 202011448802 A CN202011448802 A CN 202011448802A CN 112713054 A CN112713054 A CN 112713054A
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- 230000003068 static effect Effects 0.000 claims abstract description 78
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 238000004880 explosion Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 15
- 239000010720 hydraulic oil Substances 0.000 description 10
- 238000002955 isolation Methods 0.000 description 10
- 230000005684 electric field Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
Abstract
The invention relates to a pneumatic arc-extinguishing chamber capable of moving in two directions. But two-way motion's pneumatic explosion chamber, including the double acting pneumatic cylinder, the double acting pneumatic cylinder includes the cylinder body, and the cylinder body is fixed in quiet end subassembly department, is equipped with inside and outside cavity on the cylinder body: a static piston rod is arranged in the inner chamber, the movable piston rod and the static piston rod both comprise a plug body and a rod body, and the rod body of the static piston rod comprises a first rod body and a second rod body which have the same diameter; the outer cavity is an annular cavity and surrounds the outer side of the inner cavity, and a movable piston rod is arranged inside the outer cavity; the movable end assembly is in transmission connection with the movable side rod body so as to drive the movable side rod body and the movable side plug body to move back and forth when the brake is switched on and off; the static arc contact is fixed on the static piston rod; the axial both ends of double acting pneumatic cylinder all are equipped with cavity intercommunication passageway, and cavity intercommunication passageway is used for the corresponding end intercommunication with inner chamber and outer cavity for the quiet piston rod with move the linkage of the side body of rod and to moving the end subassembly and cushion. The double-acting structure can meet the double-acting requirement of the pneumatic arc extinguish chamber under the working conditions of high voltage grade and strong impact.
Description
Technical Field
The invention relates to a pneumatic arc-extinguishing chamber capable of moving in two directions.
Background
The arc extinguish chamber is a core part of the high-voltage switch circuit breaker and has decisive influence on the aspects of the breaking performance, reliability, operation power, economy and the like of the circuit breaker. At present, the arc extinguish chamber structure at home and abroad generally adopts two types of single-action and double-action, wherein the single-action type is that the moving end of the arc extinguish chamber moves under the driving of a driving mechanism to complete the opening and closing process; the double-acting arc extinguish chamber not only moves the movable end, but also can move partial parts of the fixed end of the arc extinguish chamber. The double-acting arc extinguish chamber has the advantages that the moving speed of the arc extinguish chamber can be increased, the dynamic electric field distribution of a fracture can be optimized, the operation power of the circuit breaker can be reduced, the reliability and stability of a product can be improved, and the product cost can be reduced. Therefore, the double-acting arc-extinguishing chamber is applied to the field of high-voltage switches in a large number of projects.
The existing double-acting structure at home and abroad generally adopts a mechanical structure to connect a moving end and a static end of an arc extinguish chamber, the moving end drives the mechanical structure, and the mechanical structure drives the static end to realize bidirectional motion. Two common double-acting configurations are available. Firstly, adopt the double acting structure of shift fork, this kind of structure is in order to realize the matching of moving end velocity of movement, and the part is many, the structure is complicated, has the jamming risk, and the action is unstable. Secondly, a double-acting structure of the long connecting rod is adopted, the structure is simple, but the problem of vibration and deformation of the long connecting rod in the movement is obvious, and the double-acting structure is not beneficial to application in products with higher speed and stronger impact.
Particularly, for the structure of the pneumatic arc extinguish chamber, the pneumatic arc extinguish chamber is a mature arc extinguish chamber structure, but the existing structure of the pneumatic arc extinguish chamber generally adopts a single-action structure, and the reason is that the pneumatic arc extinguish chamber is generally applied in ultrahigh voltage and ultrahigh voltage grades, for ultrahigh voltage and ultrahigh voltage power grids, the product has higher rated voltage grade and higher rated breaking current, the arc extinguish chamber is required to have higher blowing capacity and higher breaking speed, the pneumatic arc extinguish chamber only improves the opening and closing speed in order to meet the requirement of the breaking capacity, and the improvement of the speed inevitably brings about the increase of the operation power, and the increase of the operation power can cause a series of problems of cost improvement, vibration increase, stability reduction and the like. In addition, the pneumatic arc extinguish chamber has obvious overshoot vibration of parts due to high speed in opening and closing movement, so that redundancy of operation power is caused, and redundancy of mechanical design strength is also brought.
Disclosure of Invention
The invention aims to provide a pneumatic arc extinguish chamber capable of moving in two directions, which can realize double movement of the pneumatic arc extinguish chamber.
The invention adopts the following technical scheme:
but two-way motion's pressurized-air type explosion chamber includes:
the static end assembly comprises a static arc contact which is arranged along the front and back direction in a guiding way;
the moving end assembly is used for moving back and forth under the driving of the operating mechanism to realize switching on and switching off and comprises a pneumatic cylinder, and the pneumatic cylinder forms a pneumatic chamber;
further comprising:
double acting pneumatic cylinder, including the cylinder body, the cylinder body is fixed in quiet end subassembly department, is equipped with interior cavity and outer cavity on the cylinder body:
the inner chamber is a cylindrical chamber, a static piston rod is arranged in the inner chamber, the static piston rod comprises a static side plug body, the static side plug body is arranged in the inner chamber in a guiding mode, a first static side rod body and a second static side rod body are arranged on two axial sides of the static side plug body, the diameters of the first static side rod body and the second static side rod body are equal, and the first static side rod body and the second static side rod body extend out of corresponding ends of the inner chamber respectively;
the outer cavity is an annular cavity and surrounds the outer side of the inner cavity, a movable piston rod is arranged in the outer cavity, the movable piston rod comprises a movable side plug body, the movable side plug body is assembled in the outer cavity in a guiding mode, and one side, close to the movable end component, of the movable side plug body is connected with a movable side rod body;
the movable end assembly is in transmission connection with the movable side rod body so as to drive the movable side rod body and the movable side plug body to move back and forth when the brake is switched on and off;
the static arc contact is fixed on the static piston rod;
the axial both ends of double acting pneumatic cylinder all are equipped with cavity intercommunication passageway, cavity intercommunication passageway be used for with the corresponding end intercommunication of inner chamber and outer cavity for the quiet piston rod with move the linkage of the side body of rod, cushion the motion of moving the end subassembly simultaneously.
Has the advantages that: adopt above-mentioned technical scheme, through setting up double acting pneumatic cylinder, and will move the piston rod and move the end subassembly transmission and be connected, quiet piston rod is fixed with quiet arc contact, can realize moving the linkage of piston rod and quiet piston rod through cavity intercommunication passageway, and then realize moving the linkage of end subassembly and quiet arc contact, thereby reduce the required operation power of explosion chamber, guarantee divide-shut brake speed, compare with the double acting structure of shift fork structure and the double acting structure of long connecting rod among the prior art, spare part is few, difficult jamming, can not produce the shake deformation, and simultaneously, hydraulic oil can produce a gentle resistance during explosion chamber divide-shut brake, play the effect of buffering to the overshoot of explosion chamber, the operating impact strength has been reduced, thereby can satisfy the quick breaking demand of pneumatic explosion chamber better.
As a preferred technical scheme: an isolation cylinder body is arranged in the cylinder body and is isolated between the inner cavity and the outer cavity.
Has the advantages that: adopt above-mentioned technical scheme simple structure, be convenient for make to be favorable to reducing the radial dimension of cylinder body.
As a preferred technical scheme: the isolation cylinder is provided with a radial through hole, and the cavity communicating channel is formed by the radial through hole.
Has the advantages that: by adopting the technical scheme, the structure is simple, the number of parts is reduced, and the reliability is good.
As a preferred technical scheme: but two-way motion's pneumatic explosion chamber still includes quiet end shielding section of thick bamboo, quiet end shielding section of thick bamboo is fixed on the quiet piston rod.
Has the advantages that: by adopting the technical scheme, the motion process of the static end shielding cylinder and the static arc contact is matched with the switching-on process, the effect of optimizing a fracture electric field can be realized, the shielding performance is good, and the switching-off performance is better improved.
As a preferred technical scheme: and one end of the static end shielding cylinder close to the dynamic end component corresponds to the foremost end of the static arc contact.
Has the advantages that: by adopting the technical scheme, better shielding effect can be ensured.
As a preferred technical scheme: the static end shielding cylinder is fixed at one end of the static piston rod, which is far away from the dynamic end assembly.
Has the advantages that: by adopting the technical scheme, the static end shielding cylinder is convenient to connect and convenient to manufacture.
As a preferred technical scheme: the number of the movable side lever bodies is more than two, and the movable side lever bodies are uniformly distributed along the circumferential direction.
Has the advantages that: by adopting the technical scheme, the stress uniformity is ensured, and the reliability is further improved.
As a preferred technical scheme: the movable end assembly comprises a large nozzle, the front end of the large nozzle is provided with a connecting cylinder, and the connecting cylinder and the static arc contact are coaxially arranged;
one end of the connecting cylinder is fixed on the large nozzle, the other end of the connecting cylinder is provided with an end plate, and the static arc contact penetrates through the sealing plate; the peripheral surface of the connecting cylinder is provided with an airflow hole for restricting the flow direction and the flow of the airflow;
the movable end assembly is in transmission connection with the movable side rod body through the connecting cylinder.
Has the advantages that: the connecting cylinder has two functions, firstly, the rigidity of the connecting structure is improved, because the high-voltage switch breaker has high movement speed and strong impact, and the large nozzle and the hydraulic cylinder are connected by the rod piece, the long rod has low rigidity and is easy to bend and deform when bearing strong impact, and the length of the rod piece can be reduced and the rigidity of a transmission system can be improved by using one connecting cylinder; secondly, restraint air current, the air current that comes out from big spout can blow to the pneumatic cylinder direction, opens the air current hole on the connecting cylinder, and the position and the size in air current hole can carry out different settings according to the strong and weak of explosion chamber break-make air current, just so form a space, have retrained the flow direction and the flow of air current, and the air current parameter direct relation is to the ability of breaking of explosion chamber in the spout, so it is very important to restrain the air current.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a pneumatic arc-extinguishing chamber capable of moving bidirectionally in the invention in a closing state;
FIG. 2 is a schematic structural view of FIG. 1 in an open state;
fig. 3 is a comparative schematic diagram of the opening and closing state of fig. 1.
The names of the components corresponding to the corresponding reference numerals in the drawings are: 11. a stationary end assembly; 12. a stationary arc contact; 13. a stationary end shielding cylinder; 14. an end connecting plate; 21. a moving end assembly; 22. an insulating pull rod; 23. a movable main contact; 24. a large spout; 25. a connecting cylinder; 26. closing the plate; 27. a moving arc contact; 28. a pneumatic cylinder; 29. a gas compression chamber; 210. a pull rod connecting seat; 31. a double acting hydraulic cylinder; 32. an outer cylinder; 33. isolating the cylinder body; 34. an inner chamber; 35. an outer chamber; 36. a stationary piston rod; 37. a movable piston rod; 38. the chamber communicates with the passage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the pneumatic arc-extinguishing chamber capable of moving bidirectionally in the present invention:
as shown in fig. 1, 2 and 3, the pneumatic arc-extinguishing chamber capable of moving bidirectionally comprises a fixed end component 11, a movable end component 21 and a double-acting hydraulic cylinder 31. The static end component 11 comprises a static arc contact 12, and the static arc contact 12 is arranged along the front and back direction in a guiding way; the movable end assembly 21 comprises an insulating pull rod 22, a movable main contact 23, a large nozzle 24, a movable arc contact 27, a connecting cylinder 25 and a pressure cylinder structure, the pressure cylinder structure is the same as that in the prior art and comprises a pressure cylinder 28, the pressure cylinder 28 is used for forming a pressure air chamber 29, a pull rod connecting seat 210 is arranged in the pressure cylinder 28, the pull rod connecting seat 210 is used for being fixedly connected with the insulating pull rod 22, and a gas channel is arranged on the pull rod connecting seat and used for discharging gas in the pressure air chamber 29. The moving end assembly 21 is in transmission connection with the operating mechanism through an insulating pull rod 22 and is used for driving the moving end assembly 21 to move back and forth under the driving of the operating mechanism so as to realize opening and closing.
The double-acting hydraulic cylinder 31 comprises a cylinder body which is fixed on the static end component and comprises an outer cylinder body 32 and an isolation cylinder body 33, the outer cylinder body 32 and the isolation cylinder body 33 are coaxially arranged, and the diameter of the isolation cylinder body 33 is smaller than that of the outer cylinder body 32. The space inside the isolation cylinder 33 forms an inner chamber 34, the annular space between the outer cylinder 32 and the isolation cylinder 33 forms an outer chamber 35, and the isolation cylinder 33 is isolated between the inner chamber 34 and the outer chamber 35.
The inner chamber 34 is a cylindrical chamber in which a stationary piston rod 36 is disposed; quiet piston rod 36 includes the quiet side cock body, and the quiet side cock body direction sets up in inner chamber 34, and the axial both sides of the quiet side cock body are equipped with the quiet side body of rod of first quiet side and the quiet side body of rod of second, and the quiet side body of rod of first quiet side is close to and moves end subassembly 21, and the quiet side body of rod of second is kept away from and is moved end subassembly 21. The first and second stationary side rods have the same diameter and extend from the corresponding ends of the inner chamber 34; a fixed arc contact 12 is fixed on the first fixed side rod body.
The outer chamber 35 is an annular chamber and surrounds the outer side of the inner chamber 34, and a movable piston rod 37 is arranged in the outer chamber 35. The movable piston rod 37 includes a movable side plug body, the movable side plug body is assembled in the outer chamber 35 in a guiding manner, and a movable side rod body is connected to one side of the movable side plug body, which is close to the movable end component 21. In order to ensure even stress, the movable side rods are provided with two, and the two movable side rods are uniformly distributed along the circumferential direction. One end of the connecting cylinder 25 is fixed on the large nozzle 24, the other end of the connecting cylinder is provided with a sealing plate 26, the static arc contact 12 penetrates through the sealing plate 26, and the sealing plate 26 is fixedly connected with the movable side rod body, so that the movable end assembly 21 is in transmission connection with the movable side rod body through the connecting cylinder 25. An airflow hole (not shown) is provided on the outer peripheral surface of the connecting cylinder 25 to restrict the flow direction and the flow rate of the airflow.
Of course, as is common knowledge, for a piston rod, the rod body of the piston rod must be in sliding sealing engagement with the corresponding portion of the cylinder.
But two-way moving's pneumatic explosion chamber still includes quiet end shielding section of thick bamboo 13, quiet end shielding section of thick bamboo 13 is close to the one end of moving end subassembly 21 with the foremost end of quiet arc contact 12 corresponds, and the one end of keeping away from moving end subassembly 21 is equipped with end connection board 14, fixes through end connection board 14 on quiet piston rod 36. In order to fix the cylinder body, the side wall of the static end shielding cylinder can be provided with a slot for the fixed connection structure to penetrate out.
In the present invention, the total amount of hydraulic oil is not changed, i.e. the volume of hydraulic oil flowing out from the inner chamber 34 is equal to the volume of hydraulic oil flowing in from the outer chamber 35, and the volume of hydraulic oil flowing out from the outer chamber 35 is equal to the volume of hydraulic oil flowing in from the inner chamber 34. The following relationships exist:
by the above formula, L can be adjusted by adjusting the values of φ A, φ B, φ C, φ D1And L2The purpose of adjusting the moving stroke proportion of the movable end and the static end is achieved.
When the insulation pull rod 22 is in switching-on motion, the movable side rod body of the movable piston rod 37 pushes hydraulic oil to flow through a left radial through hole in the drawing, the hydraulic oil drives the static side plug body of the movable piston rod 36 to move, the static arc contact 12 and the static end shielding cylinder 13 are driven to move towards the movable end assembly 21 through the static side rod body, the moving process of the static end shielding cylinder 13 and the static arc contact 12 is matched with the switching-on process of the design, and the effect of optimizing a fracture electric field can be achieved. When the insulating pull rod 22 performs opening motion, the motion process is opposite to the closing motion process, and the motion processes of the static end shielding cylinder 13 and the static arc contact 12 are matched with the designed opening process, so that the function of optimizing a fracture electric field can be achieved.
The invention adopts a hydraulic double-acting structure, the static end component of the arc extinguish chamber is driven by the movable end component of the arc extinguish chamber, the power required by the motion of the static end is very small, the relative motion speed can be effectively improved under the condition that the motion speed of the movable end is not changed, and meanwhile, the hydraulic structure is simple and reliable, can bear strong impact and can play a role in buffering. In the process of opening and closing the arc extinguish chamber, the fracture electric field distribution has great influence on the opening and closing performance of the arc extinguish chamber, is an important index for judging the restriking of electric arc in the opening and closing process, and is an important index for judging the pre-breakdown in the closing process, so that the fracture electric field optimization is significant. And the stroke proportion of the movable end component and the fixed end component can be effectively adjusted by adjusting the diameter of the chamber of the double-acting hydraulic cylinder.
Embodiment 2 of the two-way movable pneumatic arc-extinguishing chamber of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, a radial through hole is provided on the isolation cylinder 33, and the chamber communication channel 38 is formed by the radial through hole, whereas in the present embodiment, communication holes are provided on end surfaces of the inner chamber 34 and the outer chamber 35, and the inner chamber 34 and the outer chamber 35 are communicated through a pipeline connected between the two communication holes.
Example 3 of a pneumatic arc chute with two-way movement according to the invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the isolation cylinder 33 directly separates the inner chamber 34 from the outer chamber 35, and in this embodiment, an annular cavity is provided between the inner chamber 34 and the outer chamber 35.
Example 4 of a pneumatic arc chute with two-way movement according to the invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the pneumatic arc-extinguishing chamber capable of moving bidirectionally further includes a static end shielding cylinder 13, and in this embodiment, the static end assembly 11 is not provided with the static end shielding cylinder 13.
Example 5 of a two-way movable pneumatic arc chute of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the static end shielding cylinder 13 is fixed at an end of the static piston rod 36 away from the dynamic end assembly 21, whereas in this embodiment, the static end shielding cylinder 13 is fixed at an end of the static piston rod 36 close to the dynamic end assembly 21.
Example 6 of a two-way movable pneumatic arc chute of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the moving end assembly 21 includes a large spout 24, a connecting cylinder 25 is provided at a front end of the large spout 24, and the connecting cylinder 25 is arranged coaxially with the stationary arc contact 12. In this embodiment, the large nozzle 24 is provided with a rod body connecting seat, and the movable side rod body is directly fixed on the rod body connecting seat.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (8)
1. But two-way motion's pressurized-air type explosion chamber includes:
the static end assembly (11), the static end assembly (11) comprises a static arc contact (12), and the static arc contact (12) is arranged along the front and back direction in a guiding manner;
the moving end assembly (21) is used for moving back and forth under the driving of the operating mechanism to realize switching on and switching off, and comprises a pneumatic cylinder (28), wherein a pneumatic chamber (29) is arranged in the pneumatic cylinder (28);
it is characterized by also comprising:
double acting hydraulic cylinder (31), including the cylinder body, the cylinder body is fixed in quiet end subassembly (11) department, is equipped with inner chamber (34) and outer chamber (35) on the cylinder body:
the inner chamber (34) is a cylindrical chamber, a static piston rod (36) is arranged in the inner chamber, the static piston rod (36) comprises a static side plug body, the static side plug body is arranged in the inner chamber (34) in a guiding mode, a first static side rod body and a second static side rod body are arranged on two axial sides of the static side plug body, the diameters of the first static side rod body and the second static side rod body are equal, and the first static side rod body and the second static side rod body extend out of corresponding ends of the inner chamber (34) respectively;
the outer chamber (35) is an annular chamber and surrounds the outer side of the inner chamber (34), a movable piston rod (37) is arranged inside the outer chamber, the movable piston rod (37) comprises a movable side plug body, the movable side plug body is assembled in the outer chamber (35) in a guiding mode, and a movable side rod body is connected to one side, close to the movable end component (21), of the movable side plug body;
the movable end assembly (21) is in transmission connection with the movable side rod body so as to drive the movable side rod body and the movable side plug body to move back and forth when the brake is switched on and off;
the static arc contact (12) is fixed on a static piston rod (36);
the axial both ends of double acting pneumatic cylinder (31) all are equipped with cavity intercommunication passageway (38), cavity intercommunication passageway (38) are used for with the corresponding end intercommunication of inner chamber (34) and outer cavity (35) for quiet piston rod (36) and the linkage of moving the side body of rod, cushion the motion of moving the end subassembly simultaneously.
2. A bidirectionally movable pneumatic arc chute according to claim 1, characterized in that an isolating cylinder (33) is provided in said cylinder, said isolating cylinder (33) being isolated between said inner chamber (34) and said outer chamber (35).
3. The pneumatic arc chute being movable in two directions as claimed in claim 2, characterized in that said insulating cylinder (33) is provided with radial through holes, said chamber communication channel (38) being formed by a radial through hole.
4. A bidirectionally movable pneumatic arc chute according to claim 1, 2 or 3, characterized in that said bidirectionally movable pneumatic arc chute further comprises a stationary end shielding cylinder (13), said stationary end shielding cylinder (13) being fixed on said stationary piston rod (36).
5. A bidirectionally movable pneumatic arc chute according to claim 4, characterized in that the end of said static end shielding cylinder (13) close to said moving end assembly (21) corresponds to the foremost end of said static arc contact (12).
6. The pneumatic arc extinguish chamber capable of moving in two directions as set forth in claim 4, wherein the static end shielding cylinder (13) is fixed at one end of the static piston rod (36) far away from the movable end assembly (21).
7. The pneumatic arc-extinguishing chamber capable of moving bidirectionally as claimed in claim 1, 2 or 3, wherein said movable side rods are provided with more than two ones, each of which is uniformly distributed along the circumferential direction.
8. The pneumatic arc-extinguishing chamber capable of moving bidirectionally according to claim 1, 2 or 3, characterized in that said moving end assembly (21) comprises a large nozzle (24), the front end of the large nozzle (24) is provided with a connecting cylinder (25), the connecting cylinder (25) is arranged coaxially with the static arc contact (12);
one end of the connecting cylinder (25) is fixed on the large nozzle (24), the other end of the connecting cylinder is provided with an end plate, and the static arc contact (12) penetrates through the sealing plate (26); the peripheral surface of the connecting cylinder (25) is provided with an airflow hole for restricting the flow direction and the flow rate of the airflow;
the movable end assembly (21) is in transmission connection with the movable side rod body through a connecting cylinder (25).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448802.0A CN112713054A (en) | 2020-12-09 | 2020-12-09 | Pneumatic arc extinguish chamber capable of moving in two directions |
| CN202110693639.2A CN113571376B (en) | 2020-12-09 | 2021-06-22 | Double-action arc extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448802.0A CN112713054A (en) | 2020-12-09 | 2020-12-09 | Pneumatic arc extinguish chamber capable of moving in two directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112713054A true CN112713054A (en) | 2021-04-27 |
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ID=75541675
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011448802.0A Pending CN112713054A (en) | 2020-12-09 | 2020-12-09 | Pneumatic arc extinguish chamber capable of moving in two directions |
| CN202110693639.2A Active CN113571376B (en) | 2020-12-09 | 2021-06-22 | Double-action arc extinguishing chamber |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110693639.2A Active CN113571376B (en) | 2020-12-09 | 2021-06-22 | Double-action arc extinguishing chamber |
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| CN (2) | CN112713054A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420481A (en) * | 2022-01-06 | 2022-04-29 | 平高集团有限公司 | Isolating switch with arc extinguishing structure and moving contact component of isolating switch |
| WO2022228257A1 (en) * | 2021-04-30 | 2022-11-03 | 萨驰智能装备股份有限公司 | Integrated hydraulic system and tire vulcanizing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892851B1 (en) * | 2005-11-03 | 2013-12-06 | Areva T & D Sa | CURRENT CURRENT CHAMBER WITH DOUBLE COMPRESSION CHAMBER |
| CN103531410B (en) * | 2012-07-04 | 2016-06-01 | 湖北湖开电气有限公司 | Double movement high voltage SF6 isolating switch self-energy extinguishing chamber |
| CN102820162B (en) * | 2012-08-14 | 2015-07-01 | 河南平高电气股份有限公司 | Double-acting high-voltage sulfur hexafluoride circuit breaker and double-acting transmission device thereof |
| CN104715965A (en) * | 2015-01-26 | 2015-06-17 | 山东泰开高压开关有限公司 | Long-electrical-life capacitor bank switch device for ultrahigh voltage engineering |
| CN110071012B (en) * | 2019-05-08 | 2024-02-06 | 沈阳工业大学 | Self-energy double-acting arc extinguishing chamber |
-
2020
- 2020-12-09 CN CN202011448802.0A patent/CN112713054A/en active Pending
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2021
- 2021-06-22 CN CN202110693639.2A patent/CN113571376B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228257A1 (en) * | 2021-04-30 | 2022-11-03 | 萨驰智能装备股份有限公司 | Integrated hydraulic system and tire vulcanizing machine |
| CN114420481A (en) * | 2022-01-06 | 2022-04-29 | 平高集团有限公司 | Isolating switch with arc extinguishing structure and moving contact component of isolating switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113571376B (en) | 2023-12-15 |
| CN113571376A (en) | 2021-10-29 |
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