There is electric redundance and control the brake monitor of function
Technical field
The present invention relates to a kind of brake monitor, particularly relate to a kind of for rail vehicles, there is electric redundance control
The brake monitor of function processed.
Background technology
Be respectively arranged with brakes in the mobile devices such as the rolling stock in track traffic, be used for realizing running train speed governing or
Stopping, brake monitor is typically mounted on locomotive (include power car or handle car) as the pith of brakes, is
Driver is braked the man-machine interface of control to train, sends braking or alleviates instruction and be transferred to the execution of locomotive braking system
Unit, thus reach to control the braking of full train, mitigation capability.
Rolling stock brakes have passed through technology for many years development after, at present have been realized in use computer and
The braking control system of network communications technology, brake monitor therein is by analog quantity or numeral by the operational motion of driver
The electrical command modes such as amount send the execution control unit of brakes to, and braking or the alleviation of rolling stock are controlled by final realization
System.
But brakes is as the visual plant of rolling stock, its functional reliability will directly influence train and normally transport
Battalion and operation safety, if train is in operation during generation braking system faults, its result often can only wait on track circuit
The rescue of other power vehicle, causes Train delay and affects the handling capacity of track circuit.For avoiding sending out of this situation
Raw, so sometimes for braking control system being carried out the most double Analysis of Nested Design of Redundancy Design in locomotive design, i.e. on locomotive
Design and installation a set of main brake control system and a set of alternate brake control system, in order to still can make after primary brake system fault
Train braking is controlled, to ensure the normal utilization of train with emergency brake system.
The most many locomotives are mounted with to use micro-processor controlled brakes, and wherein some locomotive is also installed simultaneously
Emergency brake system, but emergency brake system uses purely mechanic design, and alternate brake controller is additionally set.Namely
Say when to the Redundancy Design of braking control system or double Analysis of Nested Design, need two set brake monitors with respectively to main brake control
System processed and alternate brake control system carry out operating control.After main brake control system is isolated because of fault, main brake control
Device processed function out of hand, transfers the manipulation to emergency brake system of the alternate brake controller to, it is achieved train braking or alleviation are made
With, meet train and continue to use requirement.
Air line of locomotive design is complicated, entrucking parts increase, cost high to use machinery alternate brake controller to also result in,
Additionally also needing to leave space on driver control table top for installing, overall system structure is unfavorable for utilization, maintenance etc..
Summary of the invention
Therefore, the present invention is just incorporated in the actually used middle situation of brake monitor on locomotive, in brake monitor
Structure carry out the design of new composition, by carrying out structure change in a brake monitor and increasing electric elements, it is achieved
The brake monitor being used for emergency brake system operation is integrated in same brake monitor, is allowed to possess electric redundance control
Function processed, i.e. after the main system fault with electronics or electrically output, by Power convert realize with rigid line control output braking,
Alleviate the mode of instruction.The present invention has the feature that
According to an aspect of the present invention, it is provided that a kind of brake monitor, it is respectively provided with under normal brake mode and standby
By two kinds of operating functions under braking mode, and both operations function is all to export braking instruction by the way of electric,
Respective independently-powered mode, and do not interfere with each other.
According to an aspect of the present invention, the braking under described brake mode for backup, alleviation operational order use switching value
The way of output of signal;Braking under described normal brake mode, alleviate operational order, can use communications protocol or switching value,
Or the way of output such as analog quantity;And described normal brake mode and brake mode for backup can be selected by change-over switch,
Operating function under brake mode for backup could must realize after isolation normal brake mode operation function.
According to an aspect of the present invention, brake monitor includes mounting seat, and described mounting seat is provided with the first braking
Handleset and the second brake handle assembly.Under normal brake mode, described first brake handle assembly contains first handle,
Can be used for the braking to permutation car, alleviate operation, described second brake handle assembly contains second handle, can be used for locomotive originally
The braking of car, alleviation operation;Under brake mode for backup, described first handle or second handle make as alternate brake operation handle
With, for the braking of train, alleviation are operated.
According to an aspect of the present invention, described brake monitor is provided with several microswitch and exhaust valve assembly, installs
In described mounting seat.Wherein said microswitch includes alleviating microswitch and braking microswitch, by described first braking
Handleset or the second brake handle assembly control action;Described exhaust valve assembly, is controlled by described first brake handle assembly
And closure or openness.
According to an aspect of the present invention, brake monitor is additionally provided with disc cam, including alternate brake cam with urgent
Cam;Described alternate brake cam is arranged in described first brake handle assembly or the second brake handle assembly rotary shaft;Institute
State urgent cam to be arranged in described first brake handle assembly rotary shaft.It is provided with multiple convex on described disc cam curved surface
Wheel lift, determines relevant position residing for handle according to the rotation of described first or second handle, and alternate brake cam promotes described
Microswitch action, urgent cam promotes described exhaust valve component action.
According to an aspect of the present invention, under brake mode for backup, optional by the two of the second brake handle assembly rotation
Individual position (such as two extreme positions) is as alleviating and application position;Or two positions that the first brake handle assembly is rotated
(such as another extreme position and an ad-hoc location) is as alleviating and application position, at the two specific position, described standby
The lift of brake cam promotes alleviation microswitch and braking microswitch action respectively.
According to an aspect of the present invention, described braking and alleviation microswitch actuated element (button, lever, roller etc.)
Close to or touch in described alternate brake cam base circle, along with the rotation of described alternate brake cam, cam curved surface lift will push away
Dynamic described actuated element makes the internal reed action of microswitch, is switched on or switched off its inner contact, it is achieved on-off model exports.
According to an aspect of the present invention, outside the on-off model power supply of described microswitch can be by described brake monitor
Portion supplies, and is provided with switch and controls it, when switch is not switched on, even if operating described handle rotation can control institute
State microswitch generation action, but export without on-off model;Described supply power supply is only when carrying out alternate brake and operating with
Just grant and connect.
According to an aspect of the present invention, under brake mode for backup, handling described alternate brake operation handle can lead to
Cross electrical cnnector to alleviate and the on-off model of braking instruction to the outside output of brake monitor.
According to an aspect of the present invention, described exhaust valve assembly is provided with input pressure passage and plasmas channel, and
Being provided with air valve and flexible member in internal chamber, wherein input pressure passage is empty for the train tube pressure introducing rolling stock
Gas, plasmas channel for discharging the train tube pressure air in input pressure passage to air;The pushing and pressing of described flexible member are described
Air valve, the unlatching of air valve controls input pressure passage and connects with plasmas channel or cut off with Guan Bi;Described input pressure passage,
The effective drift diameter of air valve and plasmas channel is sufficiently large, it is possible to ensure that described input pressure channel inner pressure air quickly enters greatly
Gas, the unlatching of described air valve is controlled by described first handle.
According to an aspect of the present invention, the extreme position that described first brake handle assembly rotates is used for promoting institute
State air valve to open, in the unlatching of air valve described in the liter process control of cam urgent described in this extreme position.
According to an aspect of the present invention, described brake monitor either at normal brake mode still at alternate brake
Pattern, first handle all can be in extreme position control and open described air valve, the passage of connection train tube pressure air and air.
According to an aspect of the present invention, described brake monitor also includes the outer cover being coated with described mounting seat, described control
Making sheet card is arranged on described outer cover;Described outer cover is also equipped with electrical cnnector, connecing outdoor electrical for brake monitor
Mouthful.
Present invention aim at providing a kind of brake monitor, i.e. can be braked instruction behaviour under normal brake mode
Make, it is also possible to when normal brake system (including brake monitor) fault through transitions into brake mode for backup under be braked
Command operating, the purely mechanic brake hard air draft effect of brake monitor is the most effective simultaneously.
The present invention adds at least two fine motion in the brake monitor of electronics or electrical control locomotive brakes and opens
Closing, said two microswitch defines respectively and is used as to alleviate microswitch and braking microswitch, and brakes hand first
Control microswitch and the disc cam of mechanical exhaust valve events is added on handle assembly and the second brake handle assembly.
Described alleviation microswitch and braking microswitch and corresponding disc cam, be used only in brake monitor
Under alternate brake operator scheme, it is achieved train braking is operated;And under normal brake mode, the first described brake handle group
Part is generally used for the brake operating to train, and the second brake handle assembly is generally used only for the brake operating to this car of locomotive.
The present invention can need to select first handle or second handle are designed as alternate brake operation handle according to difference,
Under brake mode for backup, the rotation of operation first handle or second handle all can drive the disc cam on respective Handleset to revolve
Turn, and promote alleviation microswitch or braking microswitch action in specific position, it is achieved alleviate or brake switch amount signal
Output.
By on brake monitor or the outside change-over switch arranged is used for choosing whether to use brake mode for backup, just
Often under braking mode, handling the first and second rotatable handles will not have alleviation or brake switch amount signal for alternate brake defeated
Go out.And the brake mode for backup only (brake hard of the first brake handle assembly after the operating function of isolation normal brake mode
Except air draft controls) just effective.Under alternate brake operator scheme, handling described alternate brake operation handle can be by electrically connecting
Connect device and require that train or locomotive are alleviated and the on-off model of braking to the outside output of brake monitor,.
So far, most of locomotives are installed unique braking control system, often affects in the case of its malfunction and failure
To train operation.Although also having a small amount of locomotive equipped with emergency brake system, but it is only pure air damping technical approach, and
A set of mechanical braking controller is additionally increased for the operation of alternate brake is controlled on former brake monitor.
By using above-mentioned technical scheme, this invention provides the locomotive brake monitor of a kind of compact conformation,
The brake operating of electrical control is operated as alternate brake, it is achieved that normal brake system operation and emergency brake system operate
Function integrated, two cover systems are powered respectively simultaneously, are selected by change-over switch and do not interfere with each other, simple in construction, convenient operation,
The Redundancy Design of locomotive brake controller is conducive to train properly functioning.
Accompanying drawing explanation
Below, in conjunction with accompanying drawing, the preferred embodiment of the present invention will be described in more detail, wherein:
Fig. 1 shows the structure chart of the brake monitor of the present invention;
Fig. 2 shows the brake monitor of the present invention and the annexation of parts thereof;
Fig. 3 (a) shows and moves as the alternate brake handle alleviation microswitch when specific alleviation position with second handle
Make situation;
Fig. 3 (b) shows and moves as the alternate brake handle braking microswitch when specific retarder location with second handle
Make situation;
Fig. 4 shows the brake monitor structure using first handle as alternate brake handle;
Fig. 5 shows the contact relation of urgent cam and exhaust valve assembly;
Fig. 6 shows the structure of exhaust valve assembly;
Fig. 7 (a) shows the contact form alleviating microswitch;
Fig. 7 (b) shows the contact form of braking microswitch.
Description of reference numerals:
1 mounting seat 2 first control for brake Handleset 3 first handle
4 second control for brake Handleset 5 second handle 6 exhaust valve assemblies
7 Control card module 8 outer cover 9 electrical cnnectors
11 urgent cam 12 alternate brake cams 13 alleviate microswitch
14 braking microswitch 15 potentiometer 21 valve bodies
22 air valve 23 valve port 24 push rods
25 spring 26 rubber seal 27 input pressure passages
28 plasmas channels 31 are alleviated normally opened contact 32 and are alleviated leading-in end
33 alleviation exits 34 are braked normally opened contact 35 and are braked leading-in end
36 braking exit 100 brake monitors
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Fig. 1 shows the main parts size of the brake monitor 100 of the present invention structure and between general connection
Relation, Fig. 2 more clearly illustrates the annexation between parts thereof, is supplementing further Fig. 1, below in conjunction with Fig. 1,
Composition, structure and the function of invention product are made an overall description by Fig. 2.
Fig. 1 shows that the brake monitor 100 of the present invention includes that mounting seat the 1, first brake handle assembly 2, second is braked
Handleset 4, exhaust valve assembly 6.Brake monitor 100 also has urgent cam 11, alternate brake cam 12 is respectively arranged in
On first brake handle assembly 2 and the second brake handle assembly 4 rotary shaft, and there is braking microswitch 14, alleviate fine motion
The mounting seats 1 such as switch 13 and potentiometer (or encoder) 15, alternate brake cam 12 curved surface is just to alleviating microswitch 13 and system
Dynamic microswitch 14, urgent cam 11 curved surface is just to exhaust valve assembly;Other first brake handle assembly 2 and the second brake handle
First handle 3 and second handle 5 it is respectively equipped with on assembly 4;And second handle 5 operates handle for alternate brake.
Fig. 2 shows the partial brake such as brake monitor outer cover 8, mounting seat 1, Control card module 7, electrical cnnector 9
Controller part.
First handle 3 or the spinning movement of second handle 5 is operated so that the first brake handle under normal brake mode
Transmission mechanism (such as meshing gear) on assembly 2 or the second brake handle assembly 4 drives potentiometer 15 to rotate, potentiometer 15 by because of
Angular displacement and new position that handle operates and produces are converted into the signal of telecommunication, deliver to Control card module 7, after treatment by electricity
It is outside that air connector 9 delivers to brake monitor 100, and output is for the braking instruction of normal brake mode, and wherein first handle 3 is used
In the control for brake to train, and second handle 5 is used for the control for brake to this car of locomotive.
As run into normal brake mode systems equipment fault during using, or other reason needs to use alternate brake
During pattern, the change-over switch being located at outside brake monitor by operation is switched over, and isolates normal brake mode function, conversion
Become brake mode for backup, it is allowed to brake mode for backup control command is exported to brake monitor by electrical cnnector 9.
Have selected brake mode for backup, operation second handle 5 (alternate brake operation handle) to alleviating extreme position, second
Alternate brake cam 12 curved surface lift concomitant rotation on brake handle assembly 4 is to alleviating at microswitch 13, such as Fig. 3 (a) institute
Showing, cam curved surface lift promotes the actuated element alleviating microswitch 13 to make to alleviate the internal reed action of microswitch 13, often
Opening the closing of contact to connect, exit 33 has high level output, output to alleviate instruction;Handle second handle 5 and turn to braking limit
Position, at the alternate brake cam 12 curved surface lift concomitant rotation on the second brake handle assembly 4 to braking microswitch 14, as
Shown in Fig. 3 (b), cam curved surface lift promotes the actuated element of braking microswitch 14 to make to brake the internal reed of microswitch 14
Action, normally opened contact disconnects Guan Bi, and exit 36 has high level output, exports braking instruction;Second handle 5 is turned to two
Optional position between extreme position, alternate brake cam 12 curved surface lift will not promote microswitch action, exit 33 He
36 do not have high level output, acquiescence service lap instruction.
Fig. 6 shows exhaust valve component 4 structure, and its building block includes: valve body 21, input pressure passage 27, big
Gas passage 28, and air valve 22, valve port 23, push rod 24, spring 25, seal 26 etc..Input pressure passage 27 is used for introducing row
Car pipe pressure air, plasmas channel 28 is then used for from exhaust valve assembly to air discharge pressure air, by valve port 23
Open and Guan Bi, thus connect or disconnect input pressure passage 27 and plasmas channel 28.Specifically, when air valve 22 is by elastic unit
Part such as spring 25 pushes when being landed on the valve seat that valve inner is formed, and valve port 23 is closed, and input pressure passage 27 and air lead to
Road 28 disconnects;When promoting push rod and overcoming the pressure of spring 25 and make air valve 22 leave its valve seat, valve port 23 is opened, such as Fig. 6
Shown in, input pressure passage 27 connects with plasmas channel 28, owing to the latus rectum (diameter >=more than 10mm) of valve port 23 is sufficiently large, and row
Car pipe pressure air enters the most rapidly air.
Fig. 4 show first handle 3 and controls exhaust valve assembly action, promotes first handle 3 to move to one of them limit
Position, is provided with a lift at the urgent cam in this position and the push rod 24 in exhaust valve assembly 6 can be promoted to move, finally open valve
Mouth 23,
Fig. 7 (a), Fig. 7 (b) respectively illustrate alleviation microswitch 13 and braking microswitch 14 contact lug and action is said
Bright, wherein to alleviate microswitch 13 and select normally opened contact 31, leading-in end 32 to be used for introducing DC voltage, exit 33 is output
End, the Guan Bi of contact 31 or disconnection control the high level output of exit 26.When alleviating microswitch 13 attonity, contact 31
Disconnecting, exit 33 is without high level output;When alleviating microswitch 13 and having action, contact 31 closes, and exit 33 has high electricity
Flat output.Braking microswitch 14 selects normally-closed contact 34, leading-in end 35 to be used for introducing DC voltage, and exit 36 is output
End, the Guan Bi of contact 34 or disconnection control the high level output of exit 36.When braking microswitch 14 attonity, contact 34
Disconnecting, exit 36 is without high level output;When braking microswitch 14 and having action, contact 34 closes, and exit 36 has high electricity
Flat output.
The brake monitor 100 of present invention as described above is only to be used for the second handle to locomotive this car control for brake
5 are set to alternate brake operation handle, and in the embodiment of change, brake monitor also can will be used for train brake control the
One handle 3 operates handle as alternate brake, as shown in Figure 5, it is achieved brake monitor alleviation under brake mode for backup, system
Dynamic switching value instruction output.One of them extreme position that simply first handle 3 rotates has been used for promoting in exhaust valve assembly 6
Air valve is opened, and selects certain ad-hoc location in another extreme position and two extreme positions is respectively used to alternate brake mould
Alleviation position under formula or retarder location, when first handle 3 turns to the two position, cam curved surface lift promotes alleviates microswitch
13 or braking microswitch 14 action, have output 33,36 to have high level output respectively.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction.Appoint
What those of ordinary skill in the art, without departing under technical solution of the present invention ambit, may utilize the side of the disclosure above
Technical solution of the present invention is made many possible variations and modification by method and technology contents, or the equivalence being revised as equivalent variations is real
Execute example.Therefore, every content without departing from technical solution of the present invention, according to the technical spirit of the present invention, above example is done
Any simple modification, equivalent variations and modification, all still fall within technical solution of the present invention protection in the range of.