CN204067157U - Locomotive swing-in high voltage isolator - Google Patents
Locomotive swing-in high voltage isolator Download PDFInfo
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- CN204067157U CN204067157U CN201420314068.2U CN201420314068U CN204067157U CN 204067157 U CN204067157 U CN 204067157U CN 201420314068 U CN201420314068 U CN 201420314068U CN 204067157 U CN204067157 U CN 204067157U
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- link plate
- disconnecting link
- insulator
- high voltage
- locomotive
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Abstract
The utility model discloses a kind of locomotive swing-in high voltage isolator, comprise two insulators be fixed on underframe, the upper end of one of them insulator is provided with holder, the upper end of another insulator is provided with contact head, holder is hinged with disconnecting link plate, the other end of disconnecting link plate disconnects with described contact head or contacts, and the middle part of disconnecting link plate is connected with link insulator, and the other end of link insulator is connected with transmission mechanism.Transmission mechanism comprises rotating shaft, and rotating shaft is fixed with master arm and slave arm, and master arm is connected with two-action cylinder or double-acting linear motor, and slave arm is connected with link insulator.Rotating shaft is fixed with cam, and the position of corresponding cam is provided with auxiliary contact switch.Disconnecting link plate has two panels, is connected between two panels disconnecting link plate by bolt, scale cover, disc spring.Compact conformation, solves existing locomotive high-voltage isolating switch and takies the large problem in space in cabinet when netting and installing disjunction in the cabinet of side.
Description
Technical field
The utility model relates to a kind of locomotive high-voltage electrical equipment, particularly relates to a kind of locomotive swing-in high voltage isolator.
Background technology
High voltage isolator is electric protective device important in locomotive high-voltage electric system.When locomotive normally works, be communicated with pantograph and main circuit breaker; Isolated fault pantograph or roof pantograph for subsequent use when bow failure or haze weather, maintain locomotive safety running.
At present, existing high voltage isolator is commonly roof installing type, and high-tension circuit is installed more than roof, due to the impact by domestic haze weather, often occurs the fault of insulation breakdown, affects locomotive operation safety; For solving environment to the impact of high pressure, the High-Voltage Electrical Appliances such as high voltage isolator are arranged in locomotive high-voltage cabinet by vehicular manufacturer, this just requires that high voltage isolator is miniaturized, meet in car and install, but the high voltage isolator physical dimension of above-mentioned roof mounting means is large, obviously cannot meet above requirement.
Utility model content
The purpose of this utility model is to provide a kind of compact conformation, locomotive swing-in high voltage isolator that volume is little.
The purpose of this utility model is achieved through the following technical solutions:
Locomotive swing-in high voltage isolator of the present utility model, comprise two insulators be fixed on underframe, the upper end of one of them insulator is provided with holder, the upper end of another insulator is provided with contact head, described holder is hinged with disconnecting link plate, the other end of described disconnecting link plate disconnects with described contact head or contacts, and the middle part of described disconnecting link plate is connected with link insulator, and the other end of described link insulator is connected with transmission mechanism.
The technical scheme provided as can be seen from above-mentioned the utility model, the locomotive swing-in high voltage isolator that the utility model embodiment provides, owing to comprising two insulators be fixed on underframe, the upper end of one of them insulator is provided with holder, the upper end of another insulator is provided with contact head, holder is hinged with disconnecting link plate, the other end of disconnecting link plate disconnects with contact head or contacts, the middle part of disconnecting link plate is connected with link insulator, the other end of link insulator is connected with transmission mechanism, compact conformation, during action, disconnecting link plate is to the inner disjunction of high voltage isolator and ground connection, space in effective saving cabinet, and scale cover and disc spring clamp structure, ensure contact head and disconnecting link plate reliable contacts.
Accompanying drawing explanation
The facade structures schematic diagram of the locomotive swing-in high voltage isolator (closure state) that Fig. 1 a provides for the utility model embodiment;
The planar structure schematic diagram of the locomotive swing-in high voltage isolator (closure state) that Fig. 1 b provides for the utility model embodiment;
Fig. 2 is the structural representation of the locomotive high voltage isolator (off-state) that the utility model embodiment provides;
Fig. 3 a be the utility model embodiment provide locomotive high voltage isolator major loop facade structures schematic diagram;
Fig. 3 b be the utility model embodiment provide locomotive high voltage isolator major loop planar structure schematic diagram;
Fig. 4 is the locomotive high voltage isolator circuit theory diagrams that the utility model embodiment provides.
In figure:
1, insulator, 2, contact head, 3, disconnecting link plate, 4, link insulator, 5, holder, 6, underframe, 7, filter, 8, auxiliary contact switch, 9, rotating shaft, 10, electromagnetically operated valve, 11, cylinder, 12, disc spring, 13, scale cover.
Embodiment
To be described in further detail the utility model embodiment below.
Locomotive swing-in high voltage isolator of the present utility model, its preferably embodiment be:
Comprise two insulators be fixed on underframe, the upper end of one of them insulator is provided with holder, the upper end of another insulator is provided with contact head, described holder is hinged with disconnecting link plate, the other end of described disconnecting link plate disconnects with described contact head or contacts, the middle part of described disconnecting link plate is connected with link insulator, and the other end of described link insulator is connected with transmission mechanism.
Described transmission mechanism comprises rotating shaft, and described rotating shaft is fixed with master arm and slave arm, and described master arm is connected with two-action cylinder or double-acting linear motor, and described slave arm is connected with described link insulator.
Described rotating shaft is fixed with cam, and the position of corresponding described cam is provided with auxiliary contact switch.
Described disconnecting link plate has two panels, is bolted between two panels disconnecting link plate, and the bolt between two panels disconnecting link plate is provided with scale cover, and the bolt outside disconnecting link plate is provided with disc spring.
The control gas circuit of described two-way cylinder is provided with air cleaner and two-position-five-way solenoid valve.
Locomotive swing-in high voltage isolator of the present utility model, compact conformation, during action, disconnecting link plate is to the inner disjunction of high voltage isolator and ground connection, effectively saves space in cabinet; And scale cover and disc spring clamp structure, ensure contact head and disconnecting link plate reliable contacts.Solve existing locomotive high-voltage isolating switch and take the large problem in space in cabinet when netting and installing disjunction in the cabinet of side.
The utility model sends the signal of telecommunication by locomotive microcomputer control unit, drives two-position-five-way solenoid valve to obtain electric commutation, changes compressed-air actuated gas circuit, drive cylinder counteragent, change major loop state; Trigger sensitive switch by the cam installed on the rotating shaft simultaneously, change major loop status signal.
Specific embodiment:
As shown in Fig. 1 a to Fig. 4, comprising: high-tension circuit, auxiliary circuit, control circuit, compressed air loop, high voltage insulation structure and mechanical transmission structure.
High voltage isolator is arranged in locomotive inner high voltage Electric Appliance Cabinet every underframe 6 by high.It is equipped with two disconnecting link plates 3, and one end is fixed on holder 5, and the other end extends on contact head 2.Disconnecting link plate is connected with transmission mechanism below by pull bar 4, and transmission mechanism adopts elongated slot slide block mechanism, adopts automatically controlled, pneumatic control mode.At height every underframe both sides, fixedly mount electromagnetically operated valve 10 and transmission cylinder 11, power transmission shaft 9 respectively, ensure that the rotation of disconnecting link plate and transmission mechanism.Height is equipped with grounding base on underframe, and when high voltage isolator is in gate-dividing state, disconnecting link plate forwards ground connection position to and is connected with grounding base.Cam on shaft end is used to control to be arranged on the output of high two auxiliary contact switches, 8, two auxiliary contact switches on underframe for high voltage isolator status signal.
The operation principle of this specific embodiment is:
Separating brake: when high voltage isolator is in "on" position, electromagnetically operated valve obtains sub-gate signal, energized action, open gas circuit, compressed air enters pressure cylinder through electromagnetically operated valve, promotes joystick, make rotating shaft rotate 60 °, isolating switch disjunction, disconnecting link plate forwards ground connection position to and is connected with grounding base.
Further, while axis of rotation, the actuated by cams switch elements auxiliary contact switch be fixed in rotating shaft is changed into gate-dividing state, and signal is passed to drivers' cab.
Close a floodgate: when high voltage isolator is in gate-dividing state, electromagnetically operated valve obtains sub-gate signal, and energized action opens gas circuit, and compressed air enters pressure cylinder through electromagnetically operated valve, promote joystick, make rotating shaft rotate 60 °, isolating switch closes, and disconnecting link plate is connected with contact head.While axis of rotation, the actuated by cams switch elements auxiliary contact switch be fixed on main shaft is changed into "on" position, and signal is passed to drivers' cab.
High voltage isolator is not with arc-control device, does not have the ability of drop-out current; Therefore, its everything all must carry out when main circuit breaker is in disjunction state.
The technical parameter that this specific embodiment provides comprises: input control voltage: DC110V; Specified action air pressure: 7bar; Rated operational voltage: 30kV; Rated current: 1kA; Short-time withstand: 16/40kA (1s); Tolerance lightning impulse: 185kV; Power-frequency withstand voltage: 85kV; Overall weight: about 65kg.
Adopt the technical scheme that this specific embodiment provides, by the control signal that locomotive provides, Controlling solenoid valve gas circuit commutates, the disconnection of high tension loop is completed with closed, the immediate status of auxiliary contact switch feedback locomotive control high voltage isolator simultaneously by gas circuit executive component double-acting cylinder; Thus the isolation achieved motorcycle pantograph or input utilization.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (5)
1. a locomotive swing-in high voltage isolator, it is characterized in that, comprise two insulators be fixed on underframe, the upper end of one of them insulator is provided with holder, the upper end of another insulator is provided with contact head, and described holder is hinged with disconnecting link plate, and the other end of described disconnecting link plate disconnects with described contact head or contacts, the middle part of described disconnecting link plate is connected with link insulator, and the other end of described link insulator is connected with transmission mechanism.
2. locomotive swing-in high voltage isolator according to claim 1, it is characterized in that, described transmission mechanism comprises rotating shaft, described rotating shaft is fixed with master arm and slave arm, described master arm is connected with two-action cylinder or double-acting linear motor, and described slave arm is connected with described link insulator.
3. locomotive swing-in high voltage isolator according to claim 2, it is characterized in that, described rotating shaft is fixed with cam, and the position of corresponding described cam is provided with auxiliary contact switch.
4. locomotive swing-in high voltage isolator according to claim 3, it is characterized in that, described disconnecting link plate has two panels, is bolted between two panels disconnecting link plate, bolt between two panels disconnecting link plate is provided with scale cover, and the bolt outside disconnecting link plate is provided with disc spring.
5. the swing-in high voltage isolator of the locomotive according to any one of claim 2 to 4, is characterized in that, the control gas circuit of described two-action cylinder is provided with air cleaner and two-position-five-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314068.2U CN204067157U (en) | 2014-06-12 | 2014-06-12 | Locomotive swing-in high voltage isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314068.2U CN204067157U (en) | 2014-06-12 | 2014-06-12 | Locomotive swing-in high voltage isolator |
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| Publication Number | Publication Date |
|---|---|
| CN204067157U true CN204067157U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314068.2U Active CN204067157U (en) | 2014-06-12 | 2014-06-12 | Locomotive swing-in high voltage isolator |
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Cited By (1)
| 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 |
-
2014
- 2014-06-12 CN CN201420314068.2U patent/CN204067157U/en active Active
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 |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |