CN106347136A - Pantograph control system - Google Patents

Abstract

The invention discloses a pantograph control system which comprises a filter, an air inlet reversing valve, a rapid air inlet throttle valve, a low-speed air inlet throttle valve, a precision pressure reducing valve for adjusting contact pressure, a safety valve for preventing failure of the precision pressure reducing valve and excessively-large contact force, an air bag, an exhaust reversing valve, a silencer and a throttle silencer. A cam is fixedly arranged on a main shaft of a pantograph lower arm. Reversing pushing rods of the air inlet reversing valve and the exhaust reversing valve make contact with the cam. During pantograph ascending, the cam activates the air inlet reversing valve to be switched, and the action of being fast followed by slow is achieved; during pantograph descending, the cam activates the exhaust reversing valve to be switched, and the action of being fast followed by slow is achieved. The pantograph feed and exhaust speed can be dynamically adjusted, rapid response is achieved and high-voltage cable impact is avoided during ascending, rapid off-network is achieved and the pantograph slowly descends to the pantograph descending position during pantograph descending so as to reduce arcing and harmful impact, and cables, a roof and the pantograph are better protected.

Description

A kind of pantograph control system

Technical field

The present invention relates to a kind of rolling stock pantograph, more particularly, to a kind of pantograph control system.

Background technology

At present, the pantograph of rail traffic vehicles application is roughly divided into spring pantograph and gasbag-type pantograph two big class. Because gasbag-type pantograph has, followability is good, lightweight, the low reason of maintenance cost, becomes Main Trends of The Development.And it is subject to electricity Bow control system is the core building block of pantograph system, its performance quality directly determine pantograph current carrying quality and can By property.

Using the electrically-driven car vehicle of pantograph, pantograph needs quick response and avoids and High-Voltage Network when rising Need quick off-network and slowly drop to chopper bar position when line impact, fall bow, to reduce arcing and harmful impact；Needs pass through Control supply or discharge the speed of the compressed air of air bag realizing.

But, existing domestic and international used gasbag-type pantograph control system, ascending, descending bow speed all by choke valve Lai Realize, by adjusting the aperture of choke valve, control the speed-constant airspeed of supply or aerofluxuss.Ascending, descending cannot be realized and bend speed Dynamic regulation.

Content of the invention

It is an object of the invention to provide a kind of pantograph control system that can preferably protect netting twine, roof and pantograph.

The purpose of the present invention is achieved through the following technical solutions:

The pantograph control system of the present invention, including filter, air inlet reversal valve, quick intake-air throttle valve, at a slow speed air inlet Choke valve, for adjust contact pressure precise pressure-reducing valve, for prevent the excessive relief valve of precise pressure-reducing valve inefficacy contact force, Air bag, exhaust gas switch-over valve, acoustic filter, throttle muffler, the main shaft of pantograph underarm is fixed with cam, described air inlet reversal valve Commutation push rod and described cam contact with exhaust gas switch-over valve.

As seen from the above technical solution provided by the invention, pantograph control system provided in an embodiment of the present invention, Can dynamic regulation pantograph supply, the speed of aerofluxuss, realize rise when quick response and avoid with high pressure netting twine impact, fall bow when Quick off-network and slowly drop to chopper bar position, to reduce arcing and harmful impact, preferably protection netting twine, roof and by electricity Bow.

Brief description

Fig. 1 starts quick rising bow process for the pantograph in the embodiment of the present invention in chopper bar position and (switches to decline process Bow process drops at a slow speed) schematic diagram；

Fig. 2 rises to for the pantograph in the embodiment of the present invention and switches to rising bow process at a slow speed (to start soon with decline process Prompt drop bends process) schematic diagram.

Specific embodiment

With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Ground description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this Inventive embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work Example, broadly falls into protection scope of the present invention.

The pantograph control system of the present invention, its preferably specific embodiment is:

Including filter, air inlet reversal valve, quick intake-air throttle valve, at a slow speed intake-air throttle valve, be used for adjusting contact pressure Precise pressure-reducing valve, for prevent the excessive relief valve of precise pressure-reducing valve inefficacy contact force, air bag, exhaust gas switch-over valve, acoustic filter, Throttle muffler, the main shaft of pantograph underarm is fixed with cam, the commutation push rod of described air inlet reversal valve and exhaust gas switch-over valve With described cam contact.

During pantograph rising bow, described cam activates described air inlet reversal valve and switches over, and realizes action first quick and back slow；

During pantograph fall bow, described cam activates described exhaust gas switch-over valve and switches over, and realizes action first quick and back slow.

The end of described commutation push rod is provided with roller, described roller and described cam contact.

The pantograph control system of the present invention, can dynamic regulation pantograph supply, the speed of aerofluxuss, realize rise when quick Respond and avoid with quick off-network when the impact of high pressure netting twine, fall bow and slowly drop to chopper bar position, to reduce arcing and to be harmful to Impact, preferably protection netting twine, roof and pantograph.

Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.

Specific embodiment:

It should be noted that description orientation mentioned herein " on ", D score, "left", "right", " front, " afterwards " " up time Pin " is " counterclockwise " to be all not specific to this orientation except specified otherwise, is intended merely to that description is convenient, the placement direction of described product different its Description is also not quite similar.Those of ordinary skill in the art intelligible orientation under the premise of not making creative work, all belongs to In protection scope of the present invention.

Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.

As shown in Figure 1 and Figure 2, a kind of pantograph control system, speed and contact pressure are bent in the ascending, descending for controlling pantograph Force characteristic, main include filter 1, air inlet reversal valve 2, quick intake-air throttle valve 3, at a slow speed intake-air throttle valve 4, connect for regulation The precise pressure-reducing valve 5 of touch pressure, for prevent the excessive relief valve 6 of precise pressure-reducing valve inefficacy contact force, air bag 7, aerofluxuss commutation Valve 8, acoustic filter 9, throttle muffler 10, cam 11 are fixed on pantograph underarm main shaft 12.

During rising bow, source of the gas gives gas through filter 1, air inlet reversal valve 2, quick intake-air throttle valve 3, precise pressure-reducing valve 5 Capsule 7 is filled with compressed air, and air bag 7 drives pantograph underarm main shaft 12 and cam 11 to turn clockwise, when close to high pressure netting twine electricity Gas gap allows cam 11 activation air inlet reversal valve 2 during spacing, switches to suddenly intake-air throttle valve 4 at a slow speed to supply, steadily rises Contact is on high pressure netting twine.

Source of the gas revocation, precise pressure-reducing valve 5 air inlet decompression during fall bow, in air bag 7, gas first passes sequentially through precision and subtracts Pressure valve 5 air vent, exhaust gas switch-over valve 8, acoustic filter 9 are expelled directly out, and pantograph underarm main shaft 12 and cam 11 are conducted oneself with dignity with pantograph Decline, when close to pantograph minimum working height, cam 11 activation exhaust gas switch-over valve 8, switches to suddenly throttle muffler 9 row Gas.Realize fall to bend quick off-network and avoid producing harmful impact with roof.

Cam 11 above needs to adopt good processability, the good material of wearability, is fixed on pantograph underarm main shaft 12 On, the shape of guide rail determines, in design, the height that pantograph sets switching, and can be finely adjusted according to disparity items. According to actual installation space requirement, cam can be decomposed into the shape that 2 independent controls rise and fall is mounted side by side, or according to reality Increase in demand or reduction partial function.

Air inlet reversal valve 2 and exhaust gas switch-over valve 8 can be fixed on using common roller level type two-bit triplet mechanical valve Relatively on the static pantograph underframe of car body, roller outer ring rolls on the guide rail of cam 11.

Quick intake-air throttle valve 3 and at a slow speed intake-air throttle valve 4 select the high individual event choke valve of degree of regulation, and flow can be entered Row fine adjustment, good cooperation can achieve and smoothly switches and avoid resilience.

Air bag 7 is existing technology, is to be filled with compressed air in telescopic hermetic container, using aeroelastic effect Spring.It is commonly called as air bag, balloon-type cylinder, leather bag cylinder etc..

The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any those familiar with the art in the technical scope of present disclosure, the change or replacement that can readily occur in, All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims Enclose and be defined.

Claims (3)

1. a kind of pantograph control system, including filter, air inlet reversal valve, quick intake-air throttle valve, at a slow speed intake-air throttle valve, For adjusting the precise pressure-reducing valve of contact pressure, for preventing the excessive relief valve of precise pressure-reducing valve inefficacy contact force, air bag, row , it is characterised in that being fixed with cam on the main shaft of pantograph underarm, described air inlet is changed for gas reversal valve, acoustic filter, throttle muffler Commutation push rod and described cam contact to valve and exhaust gas switch-over valve.

2. pantograph control system according to claim 1 is it is characterised in that during pantograph rising bow, described cam activation Described air inlet reversal valve switches over, and realizes action first quick and back slow；

During pantograph fall bow, described cam activates described exhaust gas switch-over valve and switches over, and realizes action first quick and back slow.

3. pantograph control system according to claim 1 and 2 is it is characterised in that the end of described commutation push rod is provided with Roller, described roller and described cam contact.