CN109969221A - Municipal rail train - Google Patents
Municipal rail train Download PDFInfo
- Publication number
- CN109969221A CN109969221A CN201711463894.8A CN201711463894A CN109969221A CN 109969221 A CN109969221 A CN 109969221A CN 201711463894 A CN201711463894 A CN 201711463894A CN 109969221 A CN109969221 A CN 109969221A
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- China
- Prior art keywords
- control valve
- pressure
- valve
- oil circuit
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims description 27
- 239000002828 fuel tank Substances 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 108
- 239000010720 hydraulic oil Substances 0.000 description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
- B60T11/34—Pressure reducing or limiting valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/08—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes comprising a pump or the like circulating fluid, braking being effected by throttling of the circulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of municipal rail train and vehicles, wherein municipal rail train includes: including an at least section car body, car body described in every section includes driver, one hydraulic pressure unit, one brak control unit and the multiple bogies arranged in front-rear direction, each bogie is equipped with spaced two wheels in left and right, two active hydraulic clamps for being braked respectively to two wheels and the passive hydraulic clamp for being braked to the bogie, the driver is connected with bogie described at least one by reduction gearbox to drive the wheels travel or stopping.The municipal rail train controls active hydraulic clamp and passive hydraulic clamp by the same hydraulic pressure unit and a brak control unit, and then control the generation and replacement of parking brake and service braking and emergency braking, thus, traditional active hydraulic clamp and passive hydraulic clamp are integrated, the product of whole system can be made more succinct, arrangement space demand is small, while can reduce system cost.
Description
Technical field
The present invention relates to field of track traffic, more particularly, to a kind of municipal rail train.
Background technique
Municipal rail train such as low-floor tramcar is due to the limited hydraulic system using lightweight, miniaturization of installation space at present
Dynamic system, hydraulic system is readily designed to frame control due to modularization, but the principle design of current hydraulic pressure unit leads to hydraulic list
Member can only individually control active hydraulic clamp or passive hydraulic clamp, can not control active hydraulic clamp and passive hydraulic clip simultaneously
Pincers need for the braking scheme that single-unit vehicle service brake uses passive grab using active hydraulic clamp, parking brake
2 brak control unit BCU and 2 hydraulic control unit HGD are configured, the more overall cost of product of every section vehicle is higher, for
Marshalling is less, for the low small-sized rubber tire municipal rail train in floor, there are problems that being difficult to arrange and higher cost.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, this hair
Bright to propose a kind of municipal rail train, which controls control by the same hydraulic pressure unit and a brak control unit
The generation and replacement of parking brake and service braking and emergency braking.
The municipal rail train of embodiment according to the present invention, including an at least section car body, car body described in every section include driver,
One hydraulic pressure unit, a brak control unit and multiple bogies in front-rear direction arrangement, set on each bogie
Have spaced two wheels in left and right, two active hydraulic clamps for being braked respectively to two wheels and for pair
The passive hydraulic clamp that the bogie is braked, the driver are connected by reduction gearbox with bogie described at least one
To drive the wheels travel or stopping, the active hydraulic clamp of each car body and the passive hydraulic clamp difference
It is connected with the corresponding hydraulic pressure unit, each car body is configured in service braking and emergency braking through the master
Hydrodynamic pressure clamp applies brake force to the wheel, is applied by the passive hydraulic tongs to the wheel in parking brake and made
Power.
The municipal rail train of embodiment according to the present invention, the municipal rail train pass through the same hydraulic pressure unit and a braking
Control unit controls the generation and replacement of parking brake and service braking and emergency braking to control.
In addition, can also have following additional technical feature according to the municipal rail train of inventive embodiments:
According to some embodiments of the present invention, the hydraulic pressure unit includes: the fuel tank for holding brake oil, is set on the fuel tank
There is oil pump；The first end of parking brake oil circuit, the parking brake oil circuit is connected with the oil pump, the parking brake oil circuit
Second end is connected with the passive oil inlet of the passive hydraulic clamp, is in series with the first control valve on the parking brake oil circuit,
First control valve is connected when the car body powers off；Service braking and emergency braking oil circuit, the service braking and urgent
The first end of brake circuit is connected with the oil pump, the other end of the service braking and emergency braking oil circuit and each master
The active brake cylinder of hydrodynamic pressure clamp is connected, and is in series with the second control valve and ratio on the service braking and emergency braking oil circuit
Valve, the proportioning valve are connected with the fuel tank；First control valve and the proportioning valve are connected with the brak control unit,
Second control valve is connected with the safety arrestment circuit of the car body, when the safety arrestment circuit obtains electric described in second control
Valve conducting；For detecting the first pressure detection device of the pressure of the active brake cylinder, the first pressure detection device with
The brak control unit is connected, and the brak control unit controls institute according to the testing result of the first pressure detection device
State the aperture of proportioning valve.
According to some embodiments of the present invention, the municipal rail train further includes accumulator, and the accumulator passes through accumulation of energy oil
Road is connected with the hydraulic pump oil pump.
According to some embodiments of the present invention, the hydraulic pressure unit further includes safety arrestment oil circuit and the 4th control valve, institute
The first end for stating safety arrestment oil circuit is connected with the accumulation of energy oil circuit, the second end of the safety arrestment oil circuit and each master
The active brake cylinder of hydrodynamic pressure clamp is connected, and is in series with third control valve and pressure reducing valve on the safety arrestment oil circuit, and described the
Three control valves are connected with the safety arrestment circuit, the safety arrestment circuit when obtaining electric the third control valve close and described
Third control valve conducting when disconnecting of safety arrestment circuit；4th control valve is connected on the service braking and urgent system
On dynamic oil circuit, the 4th control valve and second control valve are located at the two sides of the proportioning valve, the 4th control valve with
The safety arrestment circuit is connected with the conducting when the safety arrestment circuit obtains electric.
According to some embodiments of the present invention, the hydraulic pressure unit further includes second for detecting the energy storage pressure
Pressure-detecting device and third pressure-detecting device for detecting the pressure in the passive hydraulic clamp, the second pressure
Detection device, the third pressure-detecting device and the oil pump are connected with the brak control unit respectively, the braking control
Unit processed controls the oil pump according to the second pressure detection device and the testing result of the third pressure-detecting device and opens
Stop.
According to some embodiments of the present invention, the 5th control valve, the 5th control valve are in series on the accumulation of energy oil circuit
Be connected with the brak control unit, the 5th control valve be located at the parking brake oil circuit first end and the accumulator
Between；The 6th control valve is in series on the parking brake oil circuit, the 6th control valve is connected with the brak control unit.
According to some embodiments of the present invention, the outlet end of the oil pump be equipped with supply filter, the accumulation of energy oil circuit with
The supply filter is connected.
According to some embodiments of the present invention, the hydraulic pressure unit further includes the non-return in parallel with the supply filter
Valve, the check-valves are connected when the outlet pressure of the oil pump reaches setting value brake oil is oriented to the accumulation of energy oil circuit.
According to some embodiments of the present invention, the hydraulic pressure unit further includes manual relief valve, the manual relief valve with
The accumulator cooperation is to unload back the fuel tank for the pressure in the accumulator manually.
According to some embodiments of the present invention, the hydraulic pressure unit further includes unloading valve, the unloading valve and the oil pump
It is connected to unload the load of the oil pump.
According to some embodiments of the present invention, the hydraulic pressure unit further includes overflow valve, the overflow valve respectively with it is described
The outlet of oil pump is connected with the fuel tank.
According to some embodiments of the present invention, the passive hydraulic clamp is located in the rotation axis of the reduction gearbox to institute
It states rotation axis and applies brake force.
Detailed description of the invention
Fig. 1 is the brake structure schematic diagram of a car body according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of hydraulic pressure unit according to an embodiment of the present invention.
Appended drawing reference:
Car body 100, hydraulic pressure unit 1, brak control unit 2, bogie 3, wheel 31, active hydraulic clamp 32, by hydrodynamic
Press clamp 33, reduction gearbox 4, fuel tank 11, oil pump 111, accumulator 12, accumulation of energy oil circuit 13, parking brake oil circuit 14, the first control valve
5a, service braking and emergency braking oil circuit 15, the second control valve 5b, proportioning valve 6, first pressure detection device 16a, safety arrestment
Oil circuit 17, third control valve 5c, pressure reducing valve 7, second pressure detection device 16b, third pressure-detecting device 16c, the 4th control
Valve 5d, the 5th control valve 5e, the 6th control valve 5f, supply filter 8, check-valves 18, manual relief valve 19, unloading valve 20 overflow
Flow valve 21, pump motor 22, the external detection mouth 23 of pressure, throttle valve 24.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Municipal rail train according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 2.
Municipal rail train according to an embodiment of the present invention may include an at least section car body, and every section car body includes driver, one
1, brak control unit 2 of a hydraulic pressure unit and the multiple bogies 3 arranged in front-rear direction.It is understood that urban rail
The quantity of the car body of train can be set according to actual needs.
As shown in Figure 1, each bogie 3 is equipped with spaced two wheels 31 in left and right, for two wheels 31
The two active hydraulic clamps 32 braked respectively and the passive hydraulic clamp 33 for being braked to bogie 3, driver are logical
Reduction gearbox 4 is crossed to be connected at least one bogie 3 to drive wheel 31 to travel or stop, the active hydraulic clip of each car body 100
Pincers 32 and passive hydraulic clamp 33 are connected with corresponding hydraulic pressure unit 1 respectively, each car body 100 be configured in service braking and
It is right by passive hydraulic tongs 33 to the application of wheel 31 brake force, in parking brake by active hydraulic clamp 32 when emergency braking
Wheel 31 applies brake force.
In other words, when municipal rail train 100 will carry out service braking and emergency braking, hydraulic pressure unit 1 can control active liquid
Pressure clamp 32 acts directly on wheel 31, applies frictional force to wheel 31, it is made to slow down or stop.And work as 100 vehicle of urban rail column
When carrying out parking brake, hydraulic pressure unit 1 can control passive hydraulic clamp 33 and apply system also for the wheel 31 to bogie 3
Power makes its stopping.Wherein, active hydraulic clamp 32 be suitable in municipal rail train driving process to municipal rail train carry out slow down or
It is parked, and passive hydraulic clamp 33 is then used in parking brake, and active hydraulic clamp 32 and passive hydraulic clamp 33 are equal
It is controlled by a hydraulic pressure unit 1 and a brak control unit 2, as a result, by traditional active hydraulic clamp 32 and by hydrodynamic
Pressure clamp 33 integrated, the product of whole system can be made more succinct, arrangement space demand is small, while can reduce system at
This.And this braking scheme can both meet application active hydraulic braking when municipal rail train is driven a vehicle and improve ride comfort and quickly ring
Braking instruction is answered, and is able to satisfy municipal rail train is permanently parked in brake force on ramp to decay and causes to slip by slope.
Each car body of municipal rail train according to an embodiment of the present invention, the municipal rail train passes through same 1 He of hydraulic pressure unit
One brak control unit 2 controls active hydraulic clamp 32 and passive hydraulic clamp 33, and then controls parking brake and common
The generation and replacement of braking and emergency braking, as a result, collect traditional active hydraulic clamp 32 and passive hydraulic clamp 33
At the product of whole system being made more succinct, arrangement space demand is small, while can reduce system cost.
As shown in Fig. 2, hydraulic pressure unit 1 include: the fuel tank 11 for holding brake oil, parking brake oil circuit 14, service braking and
Emergency braking oil circuit 15 and first pressure detection device 16a.
Fuel tank 11 is equipped with oil pump 111.Specifically, fuel tank 11 is that entire hydraulic pressure unit 1 provides hydraulic oil and guarantees entire
The oil communication of hydraulic pressure unit 1, wherein oil pump 111 is driven by pump motor 22.
The first end of parking brake oil circuit 14 is connected with oil pump 111, the second end of parking brake oil circuit 14 with by hydrodynamic pressure
The passive oil inlet of clamp 33 is connected, and the first control valve 5a is in series on parking brake oil circuit 14, the first control valve 5a is in car body
It is connected when 100 power-off.Specifically, when municipal rail train wants parking brake, car body 100 is powered off first, at this point, the first control valve
5a can be connected, and parking brake oil circuit 14, accumulation of energy oil circuit 13 and fuel tank 11 is made to form access, at this point, passive hydraulic clamp 33 will
Oil is lost, pressure is returned directly in fuel tank 11, and the spring in passive hydraulic clamp 33 will apply pressure so that passive hydraulic clip at this time
It clamps 33 pairs of bogies 3 and applies brake force, keep municipal rail train parked, and then the locking for keeping municipal rail train stable is in situ.
Referring to Fig. 2, the first end of service braking and emergency braking oil circuit 15 is connected with oil pump 111, service braking and promptly
The other end of brake circuit 15 is connected with the active brake cylinder of each active hydraulic clamp 32, service braking and emergency braking oil circuit
The second control valve 5b and proportioning valve 6 are in series on 15, proportioning valve 6 is connected with fuel tank 11.First control valve 5a and proportioning valve 6 and system
Dynamic control unit 2 is connected, and the second control valve 5b is connected with the safety arrestment circuit of car body 100, the when safety arrestment circuit obtains electric
Two control valve 5b conducting.Specifically, the second control valve 5b is connected with safety arrestment circuit, and safety arrestment circuit obtains when normal brake application
Electricity, the second control valve 5b must be conducted, and brak control unit 2 can control proportioning valve 6 to be connected, and make service braking and emergency braking oil
Road 15 is connected and is connected with fuel tank 11, while brak control unit 2 controls the first control valve 5a and closes, and makes passive hydraulic clamp 33
Checking cylinder keeps oil pressure, realizes travel speed control (service braking) and brake (emergency braking).Wherein, in non-parking brake
Passive hydraulic clamp 33 is in relieved state under operating condition, does not influence service brake.Hereby it is achieved that utilizing a hydraulic pressure unit 1
The generation and replacement of parking brake and service braking and emergency braking are controlled with a brak control unit 2.
First pressure detection device 16a is used to detect the pressure of active brake cylinder, first pressure detection device 16a and braking
Control unit 2 is connected, and brak control unit 2 controls opening for proportioning valve 6 according to the testing result of first pressure detection device 16a
Degree.Specifically, first pressure detection device 16a is used to monitor the pressure of the active brake cylinder of active hydraulic clamp 32, and will pressure
Force signal is sent to brak control unit 2.Signal that brak control unit 2 can be sent according to first pressure detection device 16a and
Instant brake command signal controls the aperture of proportioning valve 6 to accordingly increase or reduce the active system of active hydraulic clamp 32
The pressure of dynamic cylinder, so that the active brake cylinder pressure of active hydraulic clamp 32 reaches target value.
As shown in Fig. 2, accumulator 12 is connected by accumulation of energy oil circuit 13 with the outlet of oil pump 111.Specifically, oil pump 111 is logical
Crossing accumulation of energy oil circuit 13 is that external accumulator 12 provides enough pressure and stores, with to be utilized.
Embodiment referring to figs. 1 and 2, hydraulic pressure unit 1 further include safety arrestment oil circuit 17 and the 4th control valve 5d, peace
The first end of full application of brake oil circuit 17 is connected with accumulation of energy oil circuit 13, the second end of safety arrestment oil circuit 17 and each active hydraulic clamp
32 active brake cylinder is connected, and is in series with third control valve 5c and pressure reducing valve 7 on safety arrestment oil circuit 17, third control valve 5c with
Safety arrestment circuit be connected, when safety arrestment circuit obtains electric third control valve 5c close and safety arrestment circuit disconnect when third control
Valve 5c conducting processed.4th control valve 5d is connected on service braking and emergency braking oil circuit 15, the control of the 4th control valve 5d and second
Valve 5b processed is located at the two sides of proportioning valve 6, and the 4th control valve 5d is connected when safety arrestment circuit obtains electric with safety arrestment circuit
Conducting.In other words, when municipal rail train is under normally travel state, car body 100 must be electric, at this point, third control valve 5c is in
Closed state, that is, safety arrestment oil circuit 17 are obstructed, but the second control valve 5b and the 4th control valve 5d is on state, at this time
To carry out service braking and emergency braking, proportioning valve 6 need to be only connected, make service braking and emergency braking oil circuit 15 and fuel tank
11 connections can be realized.
And when municipal rail train encounters the case where jeopardizing traffic safety, as broken off relations between train, vehicle exceeds safe speed, electricity
Source power loss etc. need to trigger safety arrestment, at this time safety arrestment circuit power loss, the conducting of third control valve 5c power loss, the second control valve 5b
It is closed with the 4th control valve 5d power loss, connects safety arrestment oil circuit 17,12 oil pressure of accumulator reaches actively through pressure reducing valve 7 at this time
The active brake cylinder of hydraulic clamp 32 applies brake force.Safety arrestment retarded velocity is defined according to the safety arrestment of vehicle, thus
The limit value of pressure reducing valve 7 is initially set.Safety arrestment does not need the control of brak control unit 2, and signal is directly given to liquid
Pressure unit 1 directly carries out ramp to stop with the pressure value that presets of pressure reducing valve 7, enjoys highest braking priority.Wherein, it stores
Energy device 12 is used to apply braking automatically when power loss, moreover it is possible to improve the effect of 111 service life of oil pump.
As depicted in figs. 1 and 2, hydraulic pressure unit 1 further includes the second pressure detection device for detecting 12 pressure of accumulator
16b and third pressure-detecting device 16c for detecting the pressure in passive hydraulic clamp 33, second pressure detection device 16b,
Third pressure-detecting device 16c and oil pump 111 are connected with brak control unit 2 respectively, and brak control unit 2 is according to second pressure
111 start and stop of testing result control oil pump of detection device 16b and third pressure-detecting device 16c, for example, when accumulator 12 or by
When any one the pressure of hydrodynamic pressure clamp 33 drops to the pump start value of definition, control oil pump 111 starts.When 12 He of accumulator
The pressure value of passive hydraulic clamp 33 reaches oil pump simultaneously when shutting down value, and control oil pump is closed, so as to improve municipal rail train
The degree of automation, guarantee accumulator 12 energy storage effect and passive hydraulic clamp 33 only work in parking brake.
Further, the 5th control valve 5e, the 5th control valve 5e and 2 phase of brak control unit are in series on accumulation of energy oil circuit 13
Even, the 5th control valve 5e is located between the first end and accumulator 12 of parking brake oil circuit 14；It connects on parking brake oil circuit 14
There are the 6th control valve 5f, the 6th control valve 5f to be connected with brak control unit 2.Specifically, when accumulator 12 or passive hydraulic clip
When 33 any one pressure of pincers drops to the pump start value of definition, oil pump 111 starts, and when the two, one of them, which first reaches, shuts down
Value and another is cut off parking brake oil circuit 14 by control the 5th control valve 5e and the 6th control valve 5f and stored when being not up to
First reach the oil circuit for shutting down value in energy oil circuit 13, avoids hypertonia, oil pump 111 continues to be pumped at this time, until accumulator 12
Until the oil pump for reaching definition with the pressure in passive hydraulic clamp 33 shuts down value.Such as second pressure detection device 16b
12 pressure of accumulator of detection reaches the pressure in the passive hydraulic clamp 33 for shutting down value and third pressure-detecting device 16c detection
When not up to shutting down value, then controls the 5th control valve 5e closing and the 6th control valve 5f is connected, so that passive hydraulic clamp 33
Pressure, which reaches, shuts down value.
As shown in Fig. 2, the outlet end of oil pump 111 is equipped with supply filter 8, accumulation of energy oil circuit 13 is connected with supply filter 8.
Supply filter 8 avoids in hydraulic oil that there are the particulate matters such as residue for being filtered processing to the hydraulic oil that oil pump 111 pumps out
It is stacked on a certain component, and influences the normal operation of the even entire hydraulic pressure unit 1 of a certain component, and then substantially increase urban rail
The Ride safety of train.
Further, hydraulic pressure unit 1 further includes the check-valves 18 in parallel with supply filter 8, and check-valves 18 is in oil pump 111
Outlet pressure is connected when reaching setting value brake oil is oriented to accumulation of energy oil circuit 13.Such as supply 8 overload of filter so that its
When upstream and downstream generates pressure difference more than specific limit value, check-valves 18 will be connected, to protect supply 8 pressure of filter will not mistake
Greatly, and then entire hydraulic pressure unit 1 is protected, operates normally entire hydraulic pressure unit 1 can.
Referring to Fig. 2, hydraulic pressure unit 1 further includes manual relief valve 19, and manual relief valve 19 cooperates with accumulator 12 with manual
Pressure in accumulator 12 is unloaded into oil return box 11.Accumulator 12 can be effectively protected as a result, avoid the pressure mistake in accumulator 12
Accumulator 12 is damaged greatly.
Hydraulic pressure unit 1 further includes unloading valve 20, and unloading valve 20 is connected to unload the load of oil pump 111 with oil pump 111.By
This, is avoided oil pump 111 with starting is carried, can extend the service life of oil pump 111.
Hydraulic pressure unit 1 further includes overflow valve 21, and overflow valve 21 is connected with the outlet of oil pump 111 and fuel tank 11 respectively.Overflow
Valve 21 can effectively prevent 1 internal system pressure of hydraulic pressure unit excessive, when the pressure of 1 internal system of hydraulic pressure unit is greater than predetermined threshold
When, overflow valve 21 will overflow some hydraulic oil outwardly to guarantee the stabilization of 1 internal system pressure of hydraulic pressure unit.
Embodiment referring to figs. 1 and 2, according to some embodiments of the present invention in, passive hydraulic clamp 33, which is located at, to be subtracted
To apply brake force to rotation axis in the rotation axis of fast case 4.Specifically, when carrying out parking brake, passive hydraulic clamp 33 is straight
It connects Braking in the rotation axis in reduction gearbox 4, rotation axis is connected with bogie 3 again, and therefore, bogie 3 can be made
It is dynamic to stop, and then stop the braking of wheel 31, the parked of municipal rail train is completed as a result,.Wherein, by by passive hydraulic clamp
33 are arranged in the rotation axis in reduction gearbox 4, reduction ratio can be made to be amplified, and then the brake force being applied on wheel 31 will
Increase, makes parked more stable of municipal rail train, even being parked in brake force on ramp will not decay and cause to slip by slope.
As shown in Fig. 2, hydraulic pressure unit 1 further includes the external detection mouth 23 of three pressure, is debugging or repairing for vehicle
12 pressure of external gauge measurement clamp and accumulator in journey.
Hydraulic pressure unit 1 further includes two throttle valves 24.Due to the application of service braking and safety arrestment need to consider it is certain
Impingement rate, therefore throttle valve 24 has been installed additional in service braking and emergency braking oil circuit 15 and safety arrestment oil circuit 17, and park
Braking is that the braking of application is powered off after vehicle has stopped, and is not impacted, therefore does not need throttle valve 24.
Describe whole system below with reference to Fig. 1 and Fig. 2 and operational process:
Each car body of this system is realized by a hydraulic pressure unit 1 and a brak control unit 2 to actively hydraulic
The control of clamp 32 and passive hydraulic clamp 33, make active hydraulic clamp 32 may act on wheel 31 with complete service braking and
Emergency braking or safety arrestment may act on passive hydraulic clamp 33 in the rotation axis in reduction gearbox 4 to complete parking brake,
And it can fast and safely realize the replacement of these three brakings.
Specifically, when service braking to be carried out and emergency braking, the second control valve 5b is connected with safety arrestment circuit, peace
Full application of brake circuit obtains electric, and the second control valve 5b must be conducted, and brak control unit 2 can control proportioning valve 6 to be connected, and makes service braking
And emergency braking oil circuit 15 connect and with fuel tank 11 connect, while brak control unit 2 control the first control valve 5a close, make by
33 checking cylinder of hydrodynamic pressure clamp keeps oil pressure, realizes travel speed control (service braking) and brake (emergency braking).
Safety arrestment is triggered when municipal rail train encounters the case where jeopardizing traffic safety, safety arrestment oil circuit 17 loses at this time
Electricity, the conducting of third control valve 5c power loss, the second control valve 5b and the 4th control valve 5d power loss are closed, and safety arrestment oil circuit 17 is connect
Logical, the active brake cylinder that 12 oil pressure of accumulator reaches active hydraulic clamp 32 through pressure reducing valve 7 at this time applies brake force.According to vehicle
Safety arrestment define safety arrestment retarded velocity, so that the limit value to pressure reducing valve 7 is initially set.Safety arrestment does not need
The control of brak control unit 2, signal are directly given to hydraulic pressure unit 1 and are directly subtracted with the pressure value that presets of pressure reducing valve 7
Speed parking.
And when vehicle carries out parking brake, car body 100 is powered off first, at this point, the first control valve 5a is in control for brake
The lower conducting of the control of unit 2, makes parking brake oil circuit 14, accumulation of energy oil circuit 13 and fuel tank 11 form access, at this point, passive hydraulic clamp
33 will lose oil, and pressure is returned directly in fuel tank 11, and the spring in passive hydraulic clamp 33 will apply pressure so that passive at this time
Hydraulic clamp 33 is clamped the rotation axis in reduction gearbox 4 to generate brake force, keeps municipal rail train parked, and then make urban rail
The stable locking of train is in situ.
In conclusion 1 inside principle of entire hydraulic pressure unit is more succinct, easy processing, and the scale of construction is smaller, it can be achieved that one is hydraulic
Unit 1 controls active hydraulic clamp 32 and passive hydraulic clamp 33 simultaneously, can meet service brake and parking brake simultaneously.
It needs to be illustrated, specific structure, the passive hydraulic clamp 33 of active hydraulic clamp 32 referred to herein
Specific structure, car body the principle in safety arrestment circuit be all the prior art, here just without detailed description.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can say this
Different embodiments or examples described in bright book are engaged and are combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of municipal rail train, which is characterized in that including an at least section car body, car body described in every section includes driver, a liquid
Unit, a brak control unit and multiple bogies in front-rear direction arrangement are pressed, each bogie is equipped with left and right
Spaced two wheels, two active hydraulic clamps for being braked respectively to two wheels and for described turn
The passive hydraulic clamp braked to frame, the driver are connected by reduction gearbox with bogie described at least one to drive
The wheels travel or stopping, the active hydraulic clamp and the passive hydraulic clamp of each car body are respectively and accordingly
The hydraulic pressure unit be connected, each car body is configured to hydraulic by the active in service braking and emergency braking
Clamp applies brake force to the wheel to wheel application brake force, in parking brake through the passive hydraulic tongs.
2. municipal rail train according to claim 1, which is characterized in that the hydraulic pressure unit includes:
The fuel tank of brake oil is held, the fuel tank is equipped with oil pump；
The first end of parking brake oil circuit, the parking brake oil circuit is connected with the oil pump, and the of the parking brake oil circuit
Two ends are connected with the passive oil inlet of the passive hydraulic clamp, and the first control valve, institute are in series on the parking brake oil circuit
State the conducting when the car body powers off of the first control valve；
The first end of service braking and emergency braking oil circuit, the service braking and emergency braking oil circuit is connected with the oil pump,
The other end of the service braking and emergency braking oil circuit is connected with the active brake cylinder of each active hydraulic clamp, described
The second control valve and proportioning valve are in series in service braking and emergency braking oil circuit, the proportioning valve is connected with the fuel tank；
First control valve and the proportioning valve are connected with the brak control unit, second control valve and the car body
Safety arrestment circuit be connected, when the safety arrestment circuit obtains electric described in the second control valve conducting；
For detecting the first pressure detection device of the pressure of the active brake cylinder, the first pressure detection device with it is described
Brak control unit is connected, and the brak control unit controls the ratio according to the testing result of the first pressure detection device
The aperture of example valve.
3. municipal rail train according to claim 2, which is characterized in that further include accumulator, the accumulator passes through accumulation of energy
Oil circuit is connected with the oil pump.
4. municipal rail train according to claim 3, which is characterized in that the hydraulic pressure unit further include safety arrestment oil circuit and
4th control valve, the first end of the safety arrestment oil circuit are connected with the accumulation of energy oil circuit, and the second of the safety arrestment oil circuit
End be connected with the active brake cylinder of each active hydraulic clamp, be in series on the safety arrestment oil circuit third control valve with
Pressure reducing valve, the third control valve are connected with the safety arrestment circuit, safety arrestment circuit third control when obtaining electric
Third control valve conducting when valve processed is closed and the safety arrestment circuit disconnects；
4th control valve is connected on the service braking and emergency braking oil circuit, the 4th control valve and described second
Control valve is located at the two sides of the proportioning valve, and the 4th control valve is connected in the safety system with the safety arrestment circuit
Conducting when dynamic circuit obtains electric.
5. municipal rail train according to claim 3, which is characterized in that the hydraulic pressure unit further includes for detecting the storage
The second pressure detection device of energy device pressure and the third pressure detecting for detecting the pressure in the passive hydraulic clamp fill
Set, the second pressure detection device, the third pressure-detecting device and the oil pump respectively with the brak control unit
It is connected, the brak control unit is according to the testing result of the second pressure detection device and the third pressure-detecting device
Control the oil pump start and stop.
6. municipal rail train according to claim 5, which is characterized in that it is in series with the 5th control valve on the accumulation of energy oil circuit,
5th control valve is connected with the brak control unit, and the 5th control valve is located at the first of the parking brake oil circuit
Between end and the accumulator；
The 6th control valve is in series on the parking brake oil circuit, the 6th control valve is connected with the brak control unit.
7. municipal rail train according to claim 2, which is characterized in that the outlet end of the oil pump is equipped with supply filter,
The accumulation of energy oil circuit is connected with the supply filter.
8. municipal rail train according to claim 7, which is characterized in that the hydraulic pressure unit further includes filtering with the supply
The check-valves of device parallel connection, the check-valves are connected when the outlet pressure of the oil pump reaches setting value brake oil is oriented to institute
State accumulation of energy oil circuit.
9. municipal rail train according to claim 3, which is characterized in that the hydraulic pressure unit further includes manual relief valve, institute
Manual relief valve and accumulator cooperation are stated so that the pressure in the accumulator is unloaded back the fuel tank manually.
10. municipal rail train according to claim 2, which is characterized in that the hydraulic pressure unit further includes unloading valve, described to unload
Lotus valve is connected to unload the load of the oil pump with the oil pump.
11. municipal rail train according to claim 2, which is characterized in that the hydraulic pressure unit further includes overflow valve, described to overflow
Stream valve is connected with the outlet of the oil pump and the fuel tank respectively.
12. municipal rail train described in any one of -11 according to claim 1, which is characterized in that the passive hydraulic clamp is located at
To apply brake force to the rotation axis in the rotation axis of the reduction gearbox.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463894.8A CN109969221A (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
| PCT/CN2018/124902 WO2019129205A1 (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 |
|---|---|---|---|
| CN201711463894.8A CN109969221A (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109969221A true CN109969221A (en) | 2019-07-05 |
Family
ID=67075053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463894.8A Pending CN109969221A (en) | 2017-12-28 | 2017-12-28 | Municipal rail train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109969221A (en) |
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| CN111572578A (en) * | 2020-05-26 | 2020-08-25 | 中车株洲电力机车有限公司 | Method and system for controlling door and illumination of railway vehicle during cleaning and vehicle |
| CN111806411A (en) * | 2020-03-26 | 2020-10-23 | 同济大学 | Wheel control type hydraulic braking system for virtual rail vehicle |
| CN112477912A (en) * | 2020-11-26 | 2021-03-12 | 湘潭市恒欣实业有限公司 | Passive braking system of railway vehicle |
| CN118163768A (en) * | 2024-05-12 | 2024-06-11 | 成都长客新筑轨道交通装备有限公司 | Remote exhaust device for urban rail vehicle |
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| CN118163768A (en) * | 2024-05-12 | 2024-06-11 | 成都长客新筑轨道交通装备有限公司 | Remote exhaust device for urban rail vehicle |
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