CN207809366U - Municipal rail train - Google Patents
Municipal rail train Download PDFInfo
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- CN207809366U CN207809366U CN201721886255.8U CN201721886255U CN207809366U CN 207809366 U CN207809366 U CN 207809366U CN 201721886255 U CN201721886255 U CN 201721886255U CN 207809366 U CN207809366 U CN 207809366U
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- safety arrestment
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- oil circuit
- braking
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Abstract
The utility model discloses a kind of municipal rail trains, including：Central controller；At least one section car body, often section car body includes two bogies, wheel and two clamps there are two being set on each bogie, often save one brak control unit of body configurations, one hydraulic pressure unit, four electromechanical braking controllers and four electromechanical units, hydraulic pressure unit is electrically connected with brak control unit, four electromechanical braking controllers are connected with four electromechanical units one-to-one correspondence, four electromechanical braking controllers are electrically connected with brak control unit, and four electromechanical braking controllers are connected with central controller with brak control unit, wherein in service brake, brak control unit is suitable for controlling two clamps of bogie to corresponding wheel braking by hydraulic pressure unit, it is suitable for controlling corresponding clamp to corresponding wheel braking by corresponding electromechanical units in stopping brake opportunity electric brake controller.Municipal rail train according to the present utility model can improve the safety of entire municipal rail train.
Description
Technical field
The utility model is related to urban rail transit technology fields, more particularly, to a kind of municipal rail train.
Background technology
In the related technology, municipal rail train is braked using Pneumatic brake systems.However, in Pneumatic brake systems
The lower body that air compressor, air dry-set, storage cylinder that air feed system includes etc. occupy municipal rail train is largely empty
Between.Moreover, the clamp for braking is all based on spring energy-storage type passive grab, the internal structure of this clamp is complicated, volume
Greatly, for organizing into groups less, for the low small-sized rubber tire municipal rail train in floor, air damping and with the passive hydraulic clamp of spring energy-storage type
There are problems that being difficult to arrange.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries
Go out a kind of municipal rail train, the safety of the municipal rail train is improved.
According to the municipal rail train of the utility model embodiment, including：Central controller；At least one section car body, often described in section
Car body includes front and back two bogies arranged, each bogie is equipped with spaced two wheels in left and right and is used for
To two clamps that two wheels are braked respectively, one brak control unit of the body configurations, a hydraulic pressure list are often saved
Member, four electromechanical braking controllers and four electromechanical units, the hydraulic pressure unit are electrically connected with the brak control unit, and four
A electromechanical braking controller is connected with four electromechanical units one-to-one correspondence, four electromechanical braking controllers and institute
State brak control unit electrical connection, and four electromechanical braking controllers and the brak control unit with the center
Controller is connected, wherein the brak control unit is suitable for controlling the bogie by the hydraulic pressure unit in service brake
Two clamps to the corresponding wheel braking, in stopping brake, the electromechanical braking controller is suitable for passing through correspondence
The electromechanical units control the corresponding clamp to the corresponding wheel braking.
According to the municipal rail train of the utility model embodiment, body configurations one brak control unit, one are often saved by giving
A hydraulic pressure unit, four electromechanical braking controllers and four electromechanical units, can improve the safety of entire municipal rail train.And
And by service brake using hydraulic pressure unit hydraulic braking when the parking side that is combined using electromechanical units electromechanical braking
Formula, while applying hydraulic braking raising ride comfort and quick response braking instruction when meeting municipal rail train driving, also
Can meet municipal rail train is permanently parked in brake force on ramp to decay causes to slip by slope.
Some embodiments according to the present utility model, the hydraulic pressure unit include：Two service braking oil circuits, described in two
Service braking oil circuit is connected in parallel, one end of two service braking oil circuits be connected with fuel tank and the other end with it is corresponding
The bogie two clamps be connected；One safety arrestment oil circuit, the safety arrestment oil circuit and two it is described often
Be connected in parallel with brake circuit, one end of the safety arrestment oil circuit be connected with the fuel tank and the other end and two described in turn
It is connected to four clamps of frame.
Some embodiments according to the present utility model, the safety arrestment oil circuit include the first safety arrestment valve, described normal
Include the switch valve set gradually and the second safety arrestment valve with brake circuit, the switch valve connects with the brak control unit
Connect, when the municipal rail train normally travel is braked described in the first safety arrestment valve disconnect and the second safety arrestment valve lead
It is logical, when the municipal rail train safety arrestment described in the conducting of the first safety arrestment valve and the second safety arrestment valve disconnect, institute
The first safety arrestment valve is stated to be connected in safety arrestment circuit with the second safety arrestment valve electric wire.
Some embodiments according to the present utility model, described one end of two service braking oil circuits, the safety system
It is connected with hydraulic pump between described one end and the fuel tank of dynamic oil circuit, the hydraulic pump is connected by filter with accumulator,
The accumulator is connected to by relief valve with the fuel tank.
Some embodiments according to the present utility model, the hydraulic pressure unit include：First brake circuit, first braking
Oil circuit includes a first service braking oil circuit being connected in parallel and a first safety arrestment oil circuit, first service braking
Oil circuit and the first safety arrestment oil circuit are located between fuel tank and two clamps of one of them bogie；Second
Brake circuit, second brake circuit include a second service braking oil circuit being connected in parallel and second safety arrestment
Oil circuit, the second service braking oil circuit and the second safety arrestment oil circuit are located at the two of fuel tank and another bogie
Between a clamp.
Some embodiments according to the present utility model, the hydraulic pressure unit further comprise：First redundancy switching valve, it is described
First service braking oil circuit, the first safety arrestment oil circuit are by the first redundancy switching valve with described described in one of them
Two clamps of bogie are connected；Second redundancy switching valve, the second service braking oil circuit, second safety arrestment
Oil circuit is connected by the second redundancy switching valve with two clamps of another bogie；When described first
Hydraulic oil when brake circuit fails, in second brake circuit is suitable for by wherein one described in the first redundancy switching valve flow direction
Two clamps of a bogie, the hydraulic pressure when second brake circuit fails, in first brake circuit
Oil is suitable for two clamps by the second redundancy switching valve flow direction another bogie.
Some embodiments according to the present utility model, the first service braking oil circuit include first switch valve, and described
One safety arrestment oil circuit includes the first sub- safety arrestment valve, wherein two clamps of one of them bogie are logical
It crosses the second sub- safety arrestment valve with the first switch valve or the first sub- safety arrestment valve to be switchably connected, described second
Service braking oil circuit includes second switch valve, and the second safety arrestment oil circuit includes the sub- safety arrestment valve of third, wherein described
Two clamps of another bogie pass through the 4th sub- safety arrestment valve and the second switch valve or the third
Sub- safety arrestment valve is switchably connected.
Some embodiments according to the present utility model, the hydraulic pressure unit have checking cylinder, each electromechanical units packet
It includes：Motor, the motor are located on the checking cylinder；Screw mechanism, the screw mechanism are located in the checking cylinder, the spiral shell
Revolve mechanism drives movement, the free end of the screw mechanism to be equipped with piston, the piston and the corresponding folder by the motor
Pincers are connected.
Some embodiments according to the present utility model often save the body configurations wheel speed sensors, the wheel speed sensors
It is connected with the corresponding brak control unit and is used to detect the rotating speed of four wheels.
Some embodiments according to the present utility model, each bogie configure load transducer, the load sensing
Device is connected with the corresponding brak control unit, and the load transducer is used to acquire the load on the corresponding bogie
Lotus.
Some embodiments according to the present utility model, the clamp are arranged in the vehicle rim of the wheel.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is to add electromechanical braking schematic diagram according to the hydraulic pressure of the municipal rail train of the utility model embodiment；
Fig. 2 is the hydraulic braking schematic diagram according to the municipal rail train of the utility model embodiment；
Fig. 3 is the hydraulic braking schematic diagram according to the municipal rail train of the utility model another embodiment；
Fig. 4 is the hydraulic braking schematic diagram according to the municipal rail train of the utility model further embodiment；
Fig. 5 is operation principle schematic diagram when being braked by hydraulic pressure unit according to the clamp of the utility model embodiment；
Fig. 6 is the pressure of oil pressure shown in Fig. 5 and the relation schematic diagram of brake force；
Fig. 7 is operation principle signal when being braked by electromechanical braking controller according to the clamp of the utility model embodiment
Figure；
Fig. 8 is motor speed, current of electric and the clamp pair according to the electromechanical braking controller of the utility model embodiment
The relation schematic diagram of the clamping force of wheel.
Reference numeral：
100：Municipal rail train；
1：Wheel；2：Clamp；
3：Brak control unit；4：Hydraulic pressure unit；
41：Service braking oil circuit；411：Switch valve；412：Second safety arrestment valve；413：Proportioning valve；
42：Safety arrestment oil circuit；421：First safety arrestment valve；422：Pressure reducing valve；
43：Fuel tank；44：Hydraulic pump；45：Accumulator；451：First pressure sensor；
46：Relief valve；
47：Checking cylinder；471：Pressure sensor；472：First piston；
48：Filter；481：Check-valves；49：Overflow valve；
51：First service braking oil circuit；511：First switch valve；
52：First safety arrestment oil circuit；521：First sub- safety arrestment valve；
53：Second sub- safety arrestment valve；
54：Second service braking oil circuit；541：Second switch valve；
55：Second safety arrestment oil circuit；551：The sub- safety arrestment valve of third；
56：4th sub- safety arrestment valve；
57：First redundancy switching valve；58：Second redundancy switching valve；
5：Electromechanical braking controller；
6：Electromechanical units；
61：Motor；62：Screw mechanism；63：Piston；
7：Wheel speed sensors；8：Load transducer.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on ... shown in the drawings
Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model
System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more this feature.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Below with reference to Fig. 1-Fig. 8 descriptions according to the municipal rail train 100 of the utility model embodiment.Municipal rail train 100 can be with
For few small-sized rubber tire municipal rail train of marshalling self- steering.For example, 1~2 marshalling small-sized rubber tire municipal rail train of self- steering, the at this time urban rail
Train 100 includes 1~2 section car body.But not limited to this.
As Figure 1-Figure 8, (not shown according to the municipal rail train of the utility model embodiment 100, including central controller
Go out) and at least one section car body.
Specifically, often section car body includes front and back two bogies arranged, each bogie is equipped between left and right every setting
Two wheels 1 set and two clamps 2 for being braked respectively to two wheels 1 often save one control for brake list of body configurations
First 3, hydraulic pressure units, 4, four electromechanical braking controllers 5 and four electromechanical units 6, hydraulic pressure unit 4 and brak control unit 3
Electrical connection, four electromechanical braking controllers 5 are connected with four electromechanical units 6 one-to-one correspondence, four electromechanical braking controllers 5 and
Brak control unit 3 is electrically connected, and four electromechanical braking controllers 5 are connected with central controller with brak control unit 3.
Wherein, in service brake, brak control unit 3 is suitable for two clamps 2 by the control bogie of hydraulic pressure unit 4
Corresponding wheel 1 is braked, is suitable for controlling correspondence by corresponding electromechanical units 6 in stopping brake opportunity electric brake controller 5
Clamp 2 to corresponding wheel 1 brake.
The braking control system of municipal rail train 100 is vehicle control at this time, often saves car body mainly by a hydraulic pressure unit 4 and one
Multiple bogies on one section car body of the control of brak control unit 3, but the brake force on each bogie can be adjusted individually.Specifically
Ground often saves 4, four one brak control unit 3 (BCU) of body configurations, a hydraulic pressure unit 5 (EMB- of electromechanical braking controller
ECU it) is electrically connected with brak control unit 3 with four electromechanical units 6, hydraulic pressure unit 4 and four electromechanical braking controllers 5,
And brak control unit 3 and four electromechanical braking controllers 5 are connect with central controller.Four machines of whole section car body as a result,
Electric brake controller 5 forms mutually backup, can be failed to avoid Organic Electricity brake monitor 5 to influence to brake, for example, when four
When failing one of in a electromechanical braking controller 5, central controller can control in remaining electromechanical braking controller 5
A control with corresponding electromechanical units 6 action of electromechanical braking controller 5 of failure so as to corresponding clamp 2 to corresponding
Wheel 1 is braked, to improve the security reliability of electromechanical braking.
Moreover, by using 4 hydraulic braking of hydraulic pressure unit to be made using electromechanical units 6 are electromechanical with when parking in service brake
The dynamic mode being combined, when driving, move pressure release to compacting using hydraulic braking and alleviate, and when parking uses electromechanical braking, can both meet
Apply hydraulic braking when municipal rail train 100 is driven a vehicle and improve ride comfort and quick response braking instruction, and can meet urban rail
Train 100, which is permanently parked in brake force on ramp and will not decay, to be caused to slip by slope.
It, can be with while ensureing braking function in addition, by using the mode that hydraulic braking is combined with electromechanical braking
The structure and volume of relative simplicity clamp 2, convenient for arrangement clamp 2.
According to the municipal rail train 100 of the utility model embodiment, one brak control unit of body configurations is often saved by giving
3,4, four electromechanical braking controllers 5 of a hydraulic pressure unit and four electromechanical units 6, can improve entire municipal rail train 100
Safety.Moreover, by using 4 hydraulic braking of hydraulic pressure unit to be made using electromechanical units 6 are electromechanical with when parking in service brake
The dynamic mode being combined applies hydraulic braking raising ride comfort and quick response system when meeting municipal rail train 100 and driving a vehicle
While dynamic instruction, moreover it is possible to which meeting municipal rail train 100 is permanently parked in brake force on ramp to decay causes to slip by slope.
Some embodiments according to the present utility model, as shown in Fig. 2, hydraulic pressure unit 4 includes：Two service braking oil circuits 41
With a safety arrestment oil circuit 42, two service braking oil circuits 41 are connected in parallel, one end and the oil of two service braking oil circuits 41
Case 43 is connected and the other end of two service braking oil circuits 41 is connected with two clamps 2 of corresponding bogie, safety arrestment oil
Road 42 is connected in parallel with two service braking oil circuits 41, and one end of safety arrestment oil circuit 42 is connected with fuel tank 43 and safety arrestment
The other end of oil circuit 42 is connected with four clamps 2 of two bogies.As a result, when normally travel is braked, two common systems
Dynamic oil circuit 41 is connected, and safety arrestment oil circuit 42 disconnects, and municipal rail train 100 passes through 41 normal brake application of service braking oil circuit；Safety system
It is dynamic that (for example, when municipal rail train 100 encounters the case where jeopardizing traffic safety, as broken off relations between train, vehicle is beyond safe speed, electricity
When source dead electricity etc. need to trigger safety arrestment oil circuit 42), safety arrestment oil circuit 42 is connected, and municipal rail train 100 is by making safely at this time
Dynamic oil circuit 42 is braked.Moreover, by the way that a safety arrestment oil circuit 42 is arranged, municipal rail train 100 can safely be made by this
Four clamps 2 of the dynamic oil circuit 42 on two bogies of same section car body brake four wheels 1, simplify hydraulic pressure list
The structure of member 4.Wherein, it should be noted that " normally travel braking " can be understood as needing when 100 normally travel of municipal rail train
The case where braking, " safety arrestment " can be understood as municipal rail train 100 encounter jeopardize traffic safety (between such as train break off relations, vehicle
Safety arrestment oil circuit 42 etc. need to be triggered beyond safe speed, power loss etc.) the case where.
Specifically, with reference to Fig. 2, safety arrestment oil circuit 42 includes the first safety arrestment valve 421, and service braking oil circuit 41 wraps
The switch valve 411 set gradually and the second safety arrestment valve 412 are included, switch valve 411 is connect with brak control unit 3, works as urban rail
The first safety arrestment valve 421 disconnects when 100 normally travel of train is braked and the second safety arrestment valve 412 is connected, and works as municipal rail train
First safety arrestment valve 421 conducting and the second safety arrestment valve 412 disconnects when 100 safety arrestment, the first safety arrestment valve 421 with
Second safety arrestment valve, 412 electric wire is connected in safety arrestment circuit.The mode connected as a result, by using electric wire, Ke Yiyou
The case where effect avoids to brake in time in failure, further improves the safety of municipal rail train 100.
Optionally, when 100 normally travel of municipal rail train is braked safety arrestment circuit obtain it is electric, when the safety of municipal rail train 100
Safety arrestment circuit dead electricity when braking.Specifically, when normally travel is braked, safety arrestment circuit obtains electric, the first safety arrestment valve
421 must be electrically disconnected, and the second safety arrestment valve 412 must conduct, and the conducting of 3 controlling switch valve 411 of brak control unit makes common system
Dynamic oil circuit 41 is connected.When safety arrestment, safety arrestment circuit dead electricity, the conducting of 421 dead electricity of the first safety arrestment valve, the second safety system
412 dead electricity of dynamic valve disconnects, and safety arrestment oil circuit 42 is made to connect.
Further, as shown in Fig. 2, the downstream of the first safety arrestment valve 421 is equipped with pressure reducing valve 422.It is understood that
The deceleration of safety arrestment can be defined according to the safety arrestment of vehicle, to carry out initial setting to 422 limit value of pressure reducing valve.
Safety arrestment does not need the control of brak control unit 3, and signal is directly given to hydraulic pressure unit 4 and is directly set in advance with pressure reducing valve 422
Fixed pressure value carries out ramp to stop, enjoys highest braking priority.
It breaks off relations between the case where jeopardizing traffic safety, such as train when vehicle encounters, vehicle is beyond safe speed, power loss
Safety arrestment need to be triggered, at this time safety arrestment circuit dead electricity, the conducting of 421 dead electricity of the first safety arrestment valve, the second safety arrestment valve
412 dead electricity disconnect, and safety arrestment oil circuit 42 is made to connect.
Further, with reference to Fig. 2, above-mentioned one end of two service braking oil circuits 41, above-mentioned the one of safety arrestment oil circuit 42
It is connected with hydraulic pump 44 between end and fuel tank 43, hydraulic pump 44 is connected by filter 48 with accumulator 45, and accumulator 45 passes through
Relief valve 46 is connected to fuel tank 43.For example, hydraulic pump 44 can be driven by pump motor 61, it is external accumulator 45 by port
Enough pressure reservoirs are provided, apply braking when accumulator 45 can be used for dead electricity automatically, moreover it is possible to improve pump motor 61
Service life.Filter 48 is used to filter out the impurity etc. in the oil for flowing through it, to extend the service life of entire hydraulic pressure unit 4.Its
In, if the pressure difference of supply 48 overload of filter down to the generation of downstream thereon is more than specific limit value, built in filter 48
Check-valves 481 will open, to protect 45 pressure of accumulator will not be excessive.
Optionally, relief valve 46 is manual relief valve 46.When municipal rail train 100 needs to safeguard, if desired pressure release is adjusted manually
Accumulator 45 is connected to by section relief valve 46 with fuel tank 43, and the oil in accumulator 45 can be returned directly to fuel tank 43.
Further, overflow valve 49 is equipped between hydraulic pump 44 and filter 48, overflow valve 49 is for preventing hydraulic pressure list
4 overvoltage of member.
As shown in Fig. 2, hydraulic pressure unit 4 further includes：First pressure sensor 451, first pressure sensor 451 is for monitoring
The pressure of accumulator 45 controls the start and stop of pump motor 61 using its signal, when the pressure in accumulator 45 drops to the pump of definition
When 61 initiation value of motor, pump motor 61 starts, until the motor 61 that the pressure in accumulator 45 reaches definition shuts down value.
Some embodiments according to the present utility model, as shown in Fig. 2, hydraulic pressure unit 4 has checking cylinder 47, switch valve 411
And second be equipped with proportioning valve 413 between safety arrestment valve 412, proportioning valve 413 is electrically connected with brak control unit 3, hydraulic pressure list
Member 4 further comprises：Pressure sensor 471, pressure sensor 471 are electrically connected with brak control unit 3, pressure sensor
471 pressure for monitoring checking cylinder 47.Specifically, the pressure signal stream detected is sent to braking by pressure sensor 471
Control unit 3, according to the signal of pressure sensor 471 and instant brake command signal, brak control unit 3 controls proportioning valve
413 aperture accordingly increases or reduces the pressure of checking cylinder 47, making 47 pressure of checking cylinder reach desired value.
4 internal structure of entire hydraulic pressure unit is more succinct as a result, 4 easy processing of hydraulic pressure unit, small, it can be achieved that a liquid
4 two kinds of different oil pressure outputs of unit are pressed, can be moved according to dynamic trailer electric braking force application situation control in single-unit car body and be applied on trailer
Add different hydraulic braking forces.
With reference to Fig. 5 and Fig. 6 is combined, moveable first piston 472, clamp 2 and first piston 472 are equipped in checking cylinder 47
It is connected.When controlling the braking of clamp 2 using hydraulic pressure unit 4, hydraulic oil enters in checking cylinder 47, to push first piston
472 are moved to the left, and then clamp 2 is driven to brake corresponding wheel 1.
Some specific embodiments according to the present utility model, as shown in fig. 7, each electromechanical units 6 include：Motor 61 and spiral shell
Mechanism 62 is revolved, motor 61 is located on checking cylinder 47, and screw mechanism 62 is located in checking cylinder 47, and screw mechanism 62 is driven by motor 61
Mobile, the free end (for example, right end in Fig. 7) of screw mechanism 62 is equipped with piston 63, and piston 63 is connected with corresponding clamp 2.
As a result, when controlling the braking of clamp 2 using electromechanical units 6, motor 61 can drive screw mechanism 62 to move right, to pass through
Piston 63 drives clamp 2 to brake corresponding wheel 1.Wherein, electromechanical units 6 can be arranged on checking cylinder 47, specifically, example
Such as, motor 61 is mounted on outside checking cylinder 47, and screw mechanism 62 and piston 63 are located in checking cylinder 47 and are immersed in fluid.
Optionally, motor 61 is servo motor.But not limited to this.
Other embodiments according to the present utility model, as shown in figure 3, hydraulic pressure unit 4 includes：First brake circuit and
Two brake circuits, the first brake circuit include a first service braking oil circuit 51 being connected in parallel and first safety arrestment
Oil circuit 52, the first service braking oil circuit 51 and the first safety arrestment oil circuit 52 are located at two of fuel tank 43 and one of bogie
Between clamp 2, the second brake circuit includes a second service braking oil circuit 54 being connected in parallel and second safety arrestment
Oil circuit 55, the second service braking oil circuit 54 and the second safety arrestment oil circuit 55 are located at fuel tank 43 and two folders of another bogie
Between pincers 2.The design of hydraulic pressure unit 4 is in such a way that the safety arrestment oil circuit 42 of two bogies is individually separated at this time, in this way
The influence after failure can be reduced to avoid caused brake fade is revealed at common portion such as clamp 2, there remains one at this time
A bogie can apply safety arrestment.
Some specific embodiments according to the present utility model, with reference to Fig. 3, the first service braking oil circuit 51 includes first switch
Valve 511, the first safety arrestment oil circuit 52 include the first sub- safety arrestment valve 521, wherein two of above-mentioned one of bogie
Clamp 2 is switchably connected by the second sub- safety arrestment valve 53 with 511 or the first sub- safety arrestment valve 521 of first switch valve,
Second service braking oil circuit 54 includes second switch valve 541, and the second safety arrestment oil circuit 55 includes the sub- safety arrestment valve of third
551, wherein two clamps 2 of another above-mentioned bogie pass through the 4th sub- safety arrestment valve 56 and second switch valve 541 or the
Three sub- safety arrestment valves 551 are switchably connected.
Here, it should be noted that other component parts of the hydraulic pressure unit 4 in the present embodiment such as fuel tank 43, accumulation of energy
Connection relation between each component in device 45, proportioning valve 413, pressure reducing valve 422 etc. and hydraulic pressure unit 4 etc. is in the application Fig. 2
Shown in be described in detail in embodiment, details are not described herein.
Specifically, as shown in figure 3, the first switch valve 511 of the first service braking oil circuit 51 of the first brake circuit and ratio
The second switch valve 541 and proportioning valve 413 of second service braking oil circuit 54 of example valve 413 and the second brake circuit are all connected with braking
Control unit 3, sub- the 551, the 4th son peace of safety arrestment valve of the first sub- safety arrestment valve 521, the second sub- safety arrestment valve 53, third
56 electric wire of full application of brake valve connects safety arrestment circuit.Safety arrestment circuit obtains electric, the first sub- safety arrestment when normally travel is braked
The sub- safety arrestment valve 551 of valve 521, third must be electrically disconnected, and the second sub- safety arrestment valve 53, the 4th sub- safety arrestment valve 56 are two
Triple valve connects the first service braking oil circuit 51 and the second service braking oil circuit 54, the control of brak control unit 3 first when obtaining electric
Two proportioning valves 413 of switch valve 511, second switch valve 541, the first service braking oil circuit 51 and the second service braking oil circuit 54
It opens, the first service braking oil circuit 51 is made to be connected with the second service braking oil circuit 54.Jeopardize the feelings of traffic safety when vehicle encounters
It breaks off relations between condition, such as train, vehicle need to trigger safety arrestment beyond safe speed, power loss, safety arrestment circuit mistake at this time
Electricity, sub- 551 dead electricity of the safety arrestment valve conducting of the first sub- safety arrestment valve 521, third, the 53, the 4th son of the second sub- safety arrestment valve
56 dead electricity of safety arrestment valve connects the first safety arrestment oil circuit 52 and the second safety arrestment oil circuit 55, makes the first safety arrestment oil circuit
52 connect with the second safety arrestment oil circuit 55.
422 limit value of pressure reducing valve is set it is understood that can be braked according to vehicle safety and define deceleration, is stored
Energy 45 oil pressure of device reaches checking cylinder 47 through pressure reducing valve 422 and applies braking, and safety arrestment is controlled without brak control unit 3, signal
It is directly given to hydraulic pressure unit 4 and directly carries out ramp to stop to preset pressure value, enjoy highest braking priority.
Further embodiment according to the present utility model, as shown in figure 4, hydraulic pressure unit 4 further comprises：First redundancy is cut
Valve 57 and the second redundancy switching valve 58 are changed, the first service braking oil circuit 51, the first safety arrestment oil circuit 52 are cut by the first redundancy
It changes valve 57 with two clamps 2 of above-mentioned one of bogie to be connected, the second service braking oil circuit 54, the second safety arrestment oil circuit
55 are connected by the second redundancy switching valve 58 with two clamps 2 of another above-mentioned bogie；When the first brake circuit fails,
Hydraulic oil in second brake circuit is suitable for flowing to two folders of above-mentioned one of bogie by the first redundancy switching valve 57
Pincers 2, the hydraulic oil when the second brake circuit fails, in the first brake circuit are suitable for by the second redundancy switching valve 58 flow direction
State two clamps 2 of another bogie.As a result, when brak control unit 3 has monitored an oil circuit branch (for example, first
Brake circuit or the second brake circuit) failure when, can control this fail oil circuit on redundancy switch Vavle switching oil circuit, make not lose
The clamp 2 of failure oil circuit can be entered by imitating the hydraulic oil of oil circuit, ensure the braking ability of vehicle, by influence after brake fade into
One step reduces.
Optionally, the first redundancy switching valve 57 and the second redundancy switching valve 58 are respectively the redundancy switching valve of two-bit triplet.
Further embodiment according to the present utility model, often saves body configurations wheel speed sensors 7, wheel speed sensors 7 with it is right
The brak control unit 3 answered is connected, and wheel speed sensors 7 are used to detect the rotating speed of four wheels 1.For example, often section car body can be with
Four wheel speed sensors 7 are configured, four wheel speed sensors 7 are connected with corresponding brak control unit 3, and four wheel speed sensors
7 are respectively used to the rotating speed of four wheels 1 of detection.Speed at each wheel 1 is acquired by wheel speed sensors 7, braking control
Unit 3 processed can be carried out braking relevant control logic judgement by wheel speed sensors 7 and carry out anti-sliding control.Wherein it is possible to
By the rotating speed of motor 61 in detection clamp 2 on-position of clamp 2,61 rotating speed of motor, 61 electric current of motor are monitored with electric current
It is as shown in Figure 8 to the relationship of the clamping force of wheel 1 with clamp 2.
Further embodiment according to the present utility model, each bogie configure load transducer 8, load transducer 8 with
Corresponding brak control unit 3 is connected, and load transducer 8 is used to acquire the load on corresponding bogie.Brak control unit 3
Carload can be obtained by the load acquired respectively on two bogies, so as to according to the real-time load of vehicle and braking
It instructs to adjust the size of brake force.
Optionally, clamp 2 is arranged in the vehicle rim of wheel 1.Since clamp 2 is highly integrated, occupy small, it is easy to accomplish
Wheel rim arrangement as automobile, so that 100 redundancy of entire municipal rail train is high, more securely and reliably, and municipal rail train
100 is more succinct, maintaining is simpler.
Optionally, bogie is single-axle bogie.Certainly, bogie can also be dual-axis bogie etc..
It is whole in such a way that hydraulic braking is combined with electromechanical braking according to the municipal rail train 100 of the utility model embodiment
Vehicle uses vehicle control, often saves one brak control unit 3 of body configurations and four electromechanical braking controllers 5.Brake rigging is adopted
With hydraulic pressure and the electromechanical clamp 2 to become one, drives a vehicle and release alleviation is moved to compacting using hydraulic braking, and dead electricity can be applied actively
Add dynamic, guarantee vehicle safety parking.The 4 two kinds of different oil pressure outputs of a hydraulic pressure unit can be achieved in the design of hydraulic principle, can
Apply different hydraulic braking forces on trailer according to moving trailer electric braking force application situation control in single-unit car body and moving.Parking brake
The electromechanical braking formed using motor 61 and screw mechanism 62.Clamp 2 is highly integrated, occupies small, it is easy to accomplish as automobile
The same wheel rim arrangement, whole system redundancy is high, i.e., has connection between each brake unit, forms backup, and more safety can
Lean on, and compared with existing municipal rail train 100, more succinctly, maintaining it is simpler.
According to the municipal rail train 100 of the utility model embodiment, through type electro-hydraulic brake control system is controlled using microcomputer,
Based on digitlization, intelligence, security doctrine control mode, the unmanned requirement of train can be met.
According to other compositions of the municipal rail train 100 of the utility model embodiment and operate for ordinary skill
All it is known for personnel, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (11)
1. a kind of municipal rail train, which is characterized in that including：
Central controller；
At least one section car body, it includes front and back two bogies arranged often to save the car body, and each bogie is equipped with a left side
Two wheels of right septum setting and two clamps for being braked respectively to two wheels, often save the body configurations one
A brak control unit, a hydraulic pressure unit, four electromechanical braking controllers and four electromechanical units, the hydraulic pressure unit and institute
Brak control unit electrical connection is stated, four electromechanical braking controllers are connected with four electromechanical units one-to-one correspondence,
Four electromechanical braking controllers are electrically connected with the brak control unit, and four electromechanical braking controllers and institute
Brak control unit is stated to be connected with the central controller,
Wherein in service brake, the brak control unit is suitable for controlling two of the bogie by the hydraulic pressure unit
The clamp is to the corresponding wheel braking, and in stopping brake, the electromechanical braking controller is suitable for by corresponding described
Electromechanical units control the corresponding clamp to the corresponding wheel braking.
2. municipal rail train according to claim 1, which is characterized in that the hydraulic pressure unit includes：
Two service braking oil circuits, two service braking oil circuits are connected in parallel, one end of two service braking oil circuits
And fuel tank is connected and the other end is connected with two clamps of the corresponding bogie；
One safety arrestment oil circuit, the safety arrestment oil circuit are connected in parallel with two service braking oil circuits, the safety
One end of brake circuit is connected with the fuel tank and the other end is connected with four clamps of two bogies.
3. municipal rail train according to claim 2, which is characterized in that the safety arrestment oil circuit includes the first safety arrestment
Valve, the service braking oil circuit include the switch valve set gradually and the second safety arrestment valve, the switch valve and the braking
Control unit connect, when the municipal rail train normally travel brake described in the first safety arrestment valve disconnect and it is described second safely
Brake valve be connected, when the municipal rail train safety arrestment described in the first safety arrestment valve conducting and the second safety arrestment valve
It disconnects, the first safety arrestment valve is connected to the second safety arrestment valve electric wire in safety arrestment circuit.
4. municipal rail train according to claim 2, which is characterized in that described one end of two service braking oil circuits,
Hydraulic pump is connected between described one end and the fuel tank of the safety arrestment oil circuit, the hydraulic pump passes through filter and storage
Energy device is connected, and the accumulator is connected to by relief valve with the fuel tank.
5. municipal rail train according to claim 1, which is characterized in that the hydraulic pressure unit includes：
First brake circuit, first brake circuit include a first service braking oil circuit being connected in parallel and one first
Safety arrestment oil circuit, the first service braking oil circuit and the first safety arrestment oil circuit be located at fuel tank and one of them described in
Between two clamps of bogie；
Second brake circuit, second brake circuit include a second service braking oil circuit being connected in parallel and one second
Safety arrestment oil circuit, the second service braking oil circuit and the second safety arrestment oil circuit are located at fuel tank and another described turn
To between two clamps of frame.
6. municipal rail train according to claim 5, which is characterized in that the hydraulic pressure unit further comprises：
First redundancy switching valve, the first service braking oil circuit, the first safety arrestment oil circuit pass through first redundancy
Switching valve is connected with two clamps of one of them bogie；
Second redundancy switching valve, the second service braking oil circuit, the second safety arrestment oil circuit pass through second redundancy
Switching valve is connected with two clamps of another bogie；
Hydraulic oil when first brake circuit fails, in second brake circuit is suitable for passing through the first redundancy switching valve
Two clamps for flowing to one of them bogie, when second brake circuit fails, first system
Hydraulic oil in dynamic oil circuit is suitable for two clamps by the second redundancy switching valve flow direction another bogie.
7. municipal rail train according to claim 5, which is characterized in that the first service braking oil circuit includes first switch
Valve, the first safety arrestment oil circuit includes the first sub- safety arrestment valve, wherein two of one of them bogie
The clamp passes through the second sub- safety arrestment valve and the first switch valve or the first sub- safety arrestment valve switchably phase
Even,
The second service braking oil circuit includes second switch valve, and the second safety arrestment oil circuit includes the sub- safety arrestment of third
Valve, wherein two clamps of another bogie pass through the 4th sub- safety arrestment valve and the second switch valve
Or the sub- safety arrestment valve of third is switchably connected.
8. according to the municipal rail train described in any one of claim 1-7, which is characterized in that the hydraulic pressure unit has braking
Cylinder,
Each the electromechanical units include：
Motor, the motor are located on the checking cylinder；
Screw mechanism, the screw mechanism are located in the checking cylinder, and the screw mechanism is driven by the motor and moved, described
The free end of screw mechanism is equipped with piston, and the piston is connected with the corresponding clamp.
9. municipal rail train according to claim 1, which is characterized in that the body configurations wheel speed sensors are often saved, it is described
Wheel speed sensors are connected with the corresponding brak control unit and the rotating speed for detecting four wheels.
10. municipal rail train according to claim 1, which is characterized in that each bogie configures load transducer, institute
It states load transducer with the corresponding brak control unit to be connected, the load transducer is for acquiring the corresponding steering
Load on frame.
11. municipal rail train according to claim 1, which is characterized in that the clamp is arranged in the vehicle rim of the wheel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721886255.8U CN207809366U (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
| PCT/CN2018/124900 WO2019129204A1 (en) | 2017-12-28 | 2018-12-28 | Brake control system for urban rail train and urban rail train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721886255.8U CN207809366U (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207809366U true CN207809366U (en) | 2018-09-04 |
Family
ID=63328367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721886255.8U Active CN207809366U (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
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| Country | Link |
|---|---|
| CN (1) | CN207809366U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019129204A1 (en) * | 2017-12-28 | 2019-07-04 | 比亚迪股份有限公司 | Brake control system for urban rail train and urban rail train |
| WO2020135619A1 (en) * | 2018-12-29 | 2020-07-02 | 比亚迪股份有限公司 | Braking system for use in railway vehicle and railway vehicle |
| CN112158183A (en) * | 2020-09-27 | 2021-01-01 | 中车青岛四方车辆研究所有限公司 | Active rail vehicle braking system of high-speed switch valve |
-
2017
- 2017-12-28 CN CN201721886255.8U patent/CN207809366U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019129204A1 (en) * | 2017-12-28 | 2019-07-04 | 比亚迪股份有限公司 | Brake control system for urban rail train and urban rail train |
| WO2020135619A1 (en) * | 2018-12-29 | 2020-07-02 | 比亚迪股份有限公司 | Braking system for use in railway vehicle and railway vehicle |
| CN111376944A (en) * | 2018-12-29 | 2020-07-07 | 比亚迪股份有限公司 | Braking system for a rail vehicle and rail vehicle |
| CN112158183A (en) * | 2020-09-27 | 2021-01-01 | 中车青岛四方车辆研究所有限公司 | Active rail vehicle braking system of high-speed switch valve |
| CN112158183B (en) * | 2020-09-27 | 2021-11-23 | 中车青岛四方车辆研究所有限公司 | Active rail vehicle braking system of high-speed switch valve |
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