CN105355500A - High-voltage isolating switch - Google Patents
High-voltage isolating switch Download PDFInfo
- Publication number
- CN105355500A CN105355500A CN201510701771.8A CN201510701771A CN105355500A CN 105355500 A CN105355500 A CN 105355500A CN 201510701771 A CN201510701771 A CN 201510701771A CN 105355500 A CN105355500 A CN 105355500A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- high voltage
- voltage isolator
- control valve
- piston assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
Abstract
The invention discloses a high-voltage isolating switch for locomotive control. The high-voltage isolating switch comprises a breaking and closing mechanism and a drive device, wherein the drive device drives the breaking and closing mechanism to execute breaking and closing actions and comprises a cylinder piston assembly; a piston rod of the cylinder piston assembly is connected with a control lever of the breaking and closing mechanism; cylinder gas ports are formed in two sides of a piston in a cylinder of the cylinder piston assembly and are connected with air outlet holes of a control valve; an air inlet hole and an exhaust hole are also formed in the control valve; and when one air outlet hole in the control valve is communicated with the air inlet hole, the other air outlet hole is communicated with the exhaust hole. Due to the design, the structure of the original high-voltage isolating switch is simplified; the number of to-be-sealed joints is reduced; the risk of leakage or introducing other impurities is reduced; and the safety performance of the high-voltage isolating switch is improved.
Description
Technical field
The present invention relates to locomotive control equipment technical field, more particularly, relate to a kind of high voltage isolator for locomotive control.
Background technology
Along with the development of locomotive and motor-car high-voltage electrical equipment, require more and more higher to the stability of high-voltage electrical apparatus drive control part, integrated, facilitation, the driving working method that current high voltage isolator adopts valve to control mostly, drives cylinder to complete the divide-shut brake of high voltage isolator by control valve.Cylinder mechanism is as high voltage isolator drived control element, and its Main Function is when roof apparatus breaks down, under electroless state, drive high voltage isolator, is isolated by faulty component, maintains locomotive operation.
The syndeton of the control valve that existing high voltage isolator centre adopts and cylinder mechanism is comparatively complicated, usually need to use the control valve string of more than a group and connect the gas circuit of cylinder, sometimes the driving cylinder adopted is more than one, the motion action of on/off switch jointly may be performed to a pair cylinder, the usual connection control unit plate of mechanism also adopts gas path joint to connect, in fact the reliability of the cleannes of the source of the gas of work and connection is driven directly to have influence on the performance of high voltage isolator to a great extent, and the project organization adopted in prior art is complicated, the joint related in work is more, occur that the possibility of connectivity problem is also relatively larger, so in fact this comparatively complicated connection type of drive also exists certain potential safety hazard.
In sum, how effectively solving the problems such as coefficient of safety that existing high voltage isolator complex structure causes is lower, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of high voltage isolator for locomotive control, the structural design of this high voltage isolator can solve the problems such as coefficient of safety that existing high voltage isolator complex structure causes is lower effectively.
In order to achieve the above object, the invention provides following technical scheme:
A kind of high voltage isolator for locomotive control, comprise on/off switch mechanism and drive described on/off switch structure to perform the drive unit of on/off switch action, described drive unit comprises cylinder-piston assembly, the piston rod of described cylinder-piston assembly is connected with the joystick of described on/off switch mechanism, the both sides of the piston of described cylinder-piston assembly are provided with cylinder port, described cylinder port is all connected with the venthole of control valve, described control valve is also provided with air admission hole and steam vent, when in described control valve, venthole described in one of them and described air admission hole are connected, another venthole and described steam vent are connected.
Preferably, in above-mentioned high voltage isolator, described control valve is provided with two groups of separate ventholes and steam vent.
Preferably, in above-mentioned high voltage isolator, described air admission hole is communicated with source of the gas by intake channel, is provided with strainer valve between described source of the gas and described air admission hole, and described strainer valve is provided with cup-shaped filtration.
Preferably, in above-mentioned high voltage isolator, the port of export of described steam vent is all connected with muffler.
Preferably, in above-mentioned high voltage isolator, be provided with in the pipeline of described muffler for regulating it by the throttle structure of bore.
Preferably, in above-mentioned high voltage isolator, the rubber sealing structure in described cylinder-piston assembly and described control valve is cold resistant rubber hermetically-sealed construction.
Preferably, in above-mentioned high voltage isolator, described control valve is electromagnetically operated valve, and the master control set of described electromagnetically operated valve and locomotive is electrically connected.
Preferably, in above-mentioned high voltage isolator, described control valve is fixedly connected with one with the shell of the cylinder of described cylinder-piston assembly.
High voltage isolator for locomotive control provided by the invention, comprise on/off switch mechanism and drive described on/off switch structure to perform the drive unit of on/off switch action, described drive unit comprises cylinder-piston assembly, the piston rod of described cylinder-piston assembly is connected with the joystick of described on/off switch mechanism, the both sides of the piston of described cylinder-piston assembly are provided with cylinder port, described cylinder port is all connected with the venthole of control valve, described control valve is also provided with air admission hole and steam vent, when in described control valve, venthole described in one of them and described air admission hole are connected, another venthole and described steam vent are connected.Adopt this high voltage isolator provided by the invention, the driving that same cylinder-piston assembly realizes on/off switch is controlled by same control valve, the bidirectional-movement of control realization cylinder-piston assembly inner piston rod, concrete, when the venthole that one of them is connected with cylinder port and air admission hole are connected, the venthole that the cylinder port of piston opposite side is connected is communicated with steam vent, so piston is to this side displacement, otherwise piston rod counter motion principle is identical, realize piston rod promotion joystick thus and carry out on/off switch, this design simplify the structure of high voltage isolator originally, decrease the quantity needing to carry out the joint sealed, reduce the risk occurring to leak or introduce other impurity, improve the security performance of high voltage isolator.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the drive unit of the high voltage isolator that Fig. 1 provides for the embodiment of the present invention;
The control piper schematic diagram of the drive unit of the high voltage isolator that Fig. 2 provides for the embodiment of the present invention.
In accompanying drawing, mark is as follows:
Cylinder port 1, venthole 2, control valve 3, strainer valve 4, muffler 5, cylinder 6, piston rod 7.
Embodiment
The embodiment of the invention discloses a kind of high voltage isolator for locomotive control, to solve the problems such as coefficient of safety that existing high voltage isolator complex structure causes is lower.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the structural representation of the drive unit of the high voltage isolator that Fig. 1 provides for the embodiment of the present invention; Fig. 2 is its control piper schematic diagram.
High voltage isolator for locomotive control provided by the invention, comprise on/off switch mechanism and drive described on/off switch structure to perform the drive unit of on/off switch action, described drive unit comprises cylinder-piston assembly, the piston rod 7 of described cylinder-piston assembly is connected with the joystick of described on/off switch mechanism, the both sides of cylinder 6 inner carrier of described cylinder-piston assembly are provided with cylinder port 1, described cylinder port 1 is all connected with the venthole 2 of control valve 3, described control valve 3 is also provided with air admission hole and steam vent, when in described control valve 3, described in one of them, venthole 2 is connected with described air admission hole, another venthole 2 is connected with described steam vent.Wherein it should be noted that, the position of the muffler 5 in Fig. 1 is the position of steam vent, if arrange muffler 5 in technical scheme, namely needs exit position muffler 5 being installed on steam vent.
Adopt this high voltage isolator provided by the invention, the driving that same cylinder-piston assembly realizes on/off switch is controlled by same control valve, the bidirectional-movement of control realization cylinder-piston assembly inner piston rod 7, concrete, when the venthole 2 that one of them is connected with cylinder port 1 is connected with air admission hole, the venthole 2 that the cylinder port 1 of piston opposite side is connected is communicated with steam vent, so piston is to this side displacement, otherwise piston rod 7 counter motion principle is identical, realize piston rod 7 thus to promote joystick and carry out on/off switch, this design simplify the structure of high voltage isolator originally, decrease the quantity needing to carry out the joint sealed, reduce the risk occurring to leak or introduce other impurity, improve the security performance of high voltage isolator.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, described control valve 3 is provided with two groups of separate ventholes 2 and steam vent.Known in the technical scheme that above-described embodiment provides, cylinder port 1 on cylinder 6 is connected with the venthole 2 on control valve 3, and its air admission hole and venthole 2 can be realized to connect in control valve 3 inside, the control action that its venthole 2 is connected with steam vent, and the venthole 2 that cylinder port 1 connects wherein is when connecting with air admission hole, the gas outlet that another gas port on cylinder 6 connects must be connected with steam vent, and the cylinder port 1 of cylinder 6 both sides can be connected with air admission hole and also all can connect with steam vent, so arrange two groups of different air admission holes and steam vent, be convenient to the handover operation realizing pore, avoid occurring mutually to interfere in control valve, affect the realization of control action.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, described air admission hole is communicated with source of the gas by intake channel, be provided with strainer valve 4 between described source of the gas and described air admission hole, described strainer valve 4 is provided with cup-shaped filtration.
Inventor finds, in the control loop adopting pneumatic control, what the cleannes of source of the gas can affect on/off switch action to a great extent realizes performance, so succinct structure not only will be adopted to prevent impurity to be mixed into gas circuit, also strainer valve 4 is set at air admission hole in the present embodiment, because the source of the gas that air admission hole is direct and device uses is connected, if so there is impurity in source of the gas, impurity will from air admission hole introducing device, so arrange strainer valve 4 between air admission hole and source of the gas, in advance the gas entering control valve 3 is filtered, cup-shaped filtration is adopted in the present embodiment, more effectively can remove the moisture granule impurity in gas.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, the port of export of described steam vent is all connected with muffler 5.For ensureing that the operation acts of drive unit is stable and rapid, often internal system can arrange relatively high circuit pressure, and in this case, outwardly be vented by steam vent and will send larger noise, cause noise pollution, in the present embodiment, muffler 5 is set at the port of export of the gas of steam vent, steam vent has two groups, they all connect with conserve space cost with same muffler 5, greatly reduce the noise being vented and sending, there is the size regulating steam vent simultaneously, control high voltage isolator on/off switch speed.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, be provided with in the pipeline of described muffler 5 for regulating it by the throttle structure of bore.This scheme that the present embodiment proposes, with the addition of the function controlling on/off switch speed of actions in device further before, what change the pipeline of steam vent connection passes through bore, just change the time needed for the gas of emptying piston rod 7 side, change the speed of actions of the on/off switch action driven by piston rod 7 thus, different on/off switch speed can adapt to the different use scenes of high voltage isolator, optimizes the applicability of product.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, the rubber sealing structure in described cylinder-piston assembly and described control valve 3 is cold resistant rubber hermetically-sealed construction.In order to ensure the stability in use of high voltage isolator in low temperature environment, being hereby provided with cold resistant rubber hermetically-sealed construction, optimizing product coefficient of safety in extreme circumstances.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, described control valve 3 is electromagnetically operated valve, and the master control set of described electromagnetically operated valve and locomotive is electrically connected.Adopt electromagnetic principle as the task driven of control valve, this technical scheme working stability, realize controlling easily, and the technology maturation applicability of Electromagnetic Control is good; Be electrically connected by the master control set of electromagnetically operated valve and locomotive, namely by the work of master control set monitoring electromagnetically operated valve, the operation acts realizing high voltage isolator controls.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned high voltage isolator, described control valve 3 is fixedly connected with one with the shell of the cylinder 6 of described cylinder-piston assembly.By control valve 3 and cylinder-piston assembly integrated setting, eliminate the gas pressure consumption of intermediate connection pipeline to a great extent, stable response is sensitiveer more to make pneumatic actuation work, and the volume also corresponding reduction of device, has saved space.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the high voltage isolator for locomotive control, comprise on/off switch mechanism and drive described on/off switch structure to perform the drive unit of on/off switch action, described drive unit comprises cylinder-piston assembly, the piston rod (7) of described cylinder-piston assembly is connected with the joystick of described on/off switch mechanism, it is characterized in that, the both sides of cylinder (6) inner carrier of described cylinder-piston assembly are provided with cylinder port (1), described cylinder port (1) is all connected with the venthole (2) of control valve (3), described control valve (3) is also provided with air admission hole and steam vent, when venthole (2) described in one of them in described control valve (3) is connected with described air admission hole, another venthole (2) and described steam vent are connected.
2. high voltage isolator according to claim 1, is characterized in that, described control valve (3) is provided with two groups of separate ventholes (2) and steam vent.
3. high voltage isolator according to claim 2, it is characterized in that, described air admission hole is communicated with source of the gas by intake channel, is provided with strainer valve (4) between described source of the gas and described air admission hole, and described strainer valve (4) is provided with cup-shaped filtration.
4. high voltage isolator according to claim 3, is characterized in that, the port of export of described steam vent is all connected with muffler (5).
5. high voltage isolator according to claim 4, is characterized in that, is provided with for regulating it by the throttle structure of bore in the pipeline of described muffler (5).
6. high voltage isolator according to claim 5, is characterized in that, the rubber sealing structure in described cylinder-piston assembly and described control valve (3) is cold resistant rubber hermetically-sealed construction.
7. the high voltage isolator according to any one of claim 1 to 6, is characterized in that, described control valve (3) is electromagnetically operated valve, and the master control set of described electromagnetically operated valve and locomotive is electrically connected.
8. high voltage isolator according to claim 7, is characterized in that, described control valve (3) is fixedly connected with one with the shell of the cylinder (6) of described cylinder-piston assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701771.8A CN105355500B (en) | 2015-10-26 | 2015-10-26 | A kind of high voltage isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701771.8A CN105355500B (en) | 2015-10-26 | 2015-10-26 | A kind of high voltage isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105355500A true CN105355500A (en) | 2016-02-24 |
| CN105355500B CN105355500B (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510701771.8A Active CN105355500B (en) | 2015-10-26 | 2015-10-26 | A kind of high voltage isolator |
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| Country | Link |
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| CN (1) | CN105355500B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847580A (en) * | 2017-03-31 | 2017-06-13 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN107799350A (en) * | 2017-12-07 | 2018-03-13 | 中国科学技术大学 | A kind of high speed machine for alternating current-direct current high pressure switchs |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02290770A (en) * | 1989-02-15 | 1990-11-30 | Hitachi Ltd | Electric locomotive |
| CN202272912U (en) * | 2011-10-14 | 2012-06-13 | 西安迈象能源科技有限公司 | Large-path high-pressure reversing valve |
| CN202348813U (en) * | 2011-10-13 | 2012-07-25 | 易斯拓克自动化股份有限公司 | Air cylinder structure |
| CN203895337U (en) * | 2014-05-19 | 2014-10-22 | 蓝芳 | Performer of high-pressure isolation switch |
-
2015
- 2015-10-26 CN CN201510701771.8A patent/CN105355500B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02290770A (en) * | 1989-02-15 | 1990-11-30 | Hitachi Ltd | Electric locomotive |
| CN202348813U (en) * | 2011-10-13 | 2012-07-25 | 易斯拓克自动化股份有限公司 | Air cylinder structure |
| CN202272912U (en) * | 2011-10-14 | 2012-06-13 | 西安迈象能源科技有限公司 | Large-path high-pressure reversing valve |
| CN203895337U (en) * | 2014-05-19 | 2014-10-22 | 蓝芳 | Performer of high-pressure isolation switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847580A (en) * | 2017-03-31 | 2017-06-13 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN106847580B (en) * | 2017-03-31 | 2018-12-14 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN107799350A (en) * | 2017-12-07 | 2018-03-13 | 中国科学技术大学 | A kind of high speed machine for alternating current-direct current high pressure switchs |
| CN107799350B (en) * | 2017-12-07 | 2020-05-12 | 中国科学技术大学 | High-speed mechanical switch for AC/DC high voltage |
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| Publication number | Publication date |
|---|---|
| CN105355500B (en) | 2018-09-28 |
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