CN107972650A - Hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door - Google Patents
Hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door Download PDFInfo
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- CN107972650A CN107972650A CN201710661125.2A CN201710661125A CN107972650A CN 107972650 A CN107972650 A CN 107972650A CN 201710661125 A CN201710661125 A CN 201710661125A CN 107972650 A CN107972650 A CN 107972650A
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/70—Electrical control in fluid-pressure brake systems by fluid-controlled switches
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention belongs to a kind of braking system of underground coal mine anti-explosion diesel engine railless free-wheeled vehicle, and in particular to a kind of hydropneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door.Solve when existing flame proof rubber tyre vehicle comparatively fast uses emergency braking there are the operation of vehicle speed and be likely to result in drive shafts fracture, cause vehicle brakeless and exist since carelessness does not carry out parking braking or does not carry out closing the problem of engine causes vehicle car slipping, including hydraulic braking part and pneumatic brake portion；The beneficial effects of the invention are as follows providing in flame proof rubber tyre vehicle driving or brake failure etc. in emergency circumstances, pull-up emergency brake can carry out a kind of braking system of effective emergency braking, ensure personnel safety；Offer can make engine auto extinguishing when the cab door of flame proof rubber tyre vehicle is opened unintentionally, and can make a kind of self-stopping braking system of flame proof rubber tyre vehicle.
Description
Technical field
The invention belongs to a kind of braking system of underground coal mine anti-explosion diesel engine railless free-wheeled vehicle, and in particular to one kind is used for
The hydraulic-pneumatic composite braking system of flame proof rubber tyre vehicle band door protection.
Background technology
Anti-explosion diesel engine railless free-wheeled vehicle is widely used in the transport of coal mine down-hole personnel, material and mini-plant, shape
Into certain scale, highly important effect has been played in High output and high profits mine well construction is modernized.Underground road is narrow, and the gradient is big,
Even up to 12 °~16 °, length of grade 5000m, and important component of the braking system as anti-explosion diesel engine railless free-wheeled vehicle,
Its performance quality is particularly important.
The common service braking system of flame proof rubber tyre vehicle is a set of independent braking system at present, and running brake is pacified respectively
On the left and right wheels side of explosion-proof rubber tire Chinese herbaceous peony bridge and rear axle, using hydraulic braking spring releasing pattern, indoor row is being driven
Car brake valve controls；And parking braking and emergency braking share a set of braking system, installed in forward and backward two biographies of flame proof rubber tyre vehicle
Among moving axis, using spring braking hydraulic pressure releasing pattern, manipulated driving indoor braking valve for vehicle.Flame proof rubber tyre vehicle is promptly made
Between the dynamic brake used installs forward and backward transmission shaft, it may cause to pass when the operation of vehicle speed comparatively fast uses emergency braking
Moving axis is broken, and is caused vehicle brakeless, is caused accident.
After flame proof rubber tyre vehicle parking, driver answers first pull-up braking valve for vehicle vehicle is in parked state, rear to close hair
Motivation is shut down.Since driver neglects no pull-up braking valve for vehicle or is not turned off engine and turns on cab door getting off,
It is easy to that vehicle car slipping occurs, causes personnel and property loss, there are security risk.
The content of the invention
The present invention in order to solve existing flame proof rubber tyre vehicle there are the operation of vehicle speed is very fast use emergency braking when may
Drive shafts fracture is caused, vehicle brakeless is caused and exists since carelessness does not carry out parking braking or does not carry out closing engine
A kind of the problem of causing vehicle car slipping, there is provided hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door.
The present invention adopts the following technical scheme that completion：
For the hydraulic-pneumatic composite braking system of flame proof rubber tyre vehicle band door protection, including hydraulic braking part and aerobraking
Part;
The hydraulic braking part includes four groups of Multi-functional brakes, service brake valve, parking/emergency brake and gas control
Flushing valve, described four groups of Multi-functional brakes are separately mounted at left and right sides of front-rear axle, and each Multi-functional brake passes through driving
Brake valve and the control of gas control flushing valve, parking/emergency brake control gas control flushing valve；
The aerobraking part includes gas control emergency stop valve, and the gas control emergency stop valve includes button, and button passes through closed form
The cab door control of flame proof rubber tyre vehicle under state, the stomata emergency stop valve also control the gas control flushing valve.
The aerobraking part further includes air accumulator, air control switch valve, explosion-proof solenoid valve, gas control trigger valve, startup
Motor, die master cylinder and fuel cut-off control cylinder；
The gas control emergency stop valve is two-bit triplet reversal valve, equipped with three interfaces, including interface P7, interface R2 and interface
The interface P6 of A8, interface R2 the interface P12 with fuel cut-off control cylinder, the interface P11 for master cylinder of dying and gas control flushing valve respectively
Mouth connection, A8 mouthfuls of interface are provided with silencer, and stomata emergency stop valve is provided with post rod type control button, is driven under the closure state
The medial surface for sailing room door acts on post rod type control button；
The electromagnetic valve of explosion isolation is normally closed type two position three way directional control valve, equipped with power connection end mouth L, interface R3 and interface P8, is connect
Electric port L is connected with external power supply case, the interface R3 and interface P7 of the gas control emergency stop valve and interface P9 of gas control trigger valve, interface
P8 is connected with the interface R5 of air control switch valve；
The gas control trigger valve is two-bit triplet reversal valve, equipped with three interfaces, including interface P9, interface R4 and interface A10,
One of the interface P7 connections of the interface R3 and gas control emergency stop valve of interface P9 and electromagnetic valve of explosion isolation, interface R4 and starter motor connects
Mouth connection, interface A10 installation silencers.
The hydraulic braking part further include hydraulic pump, prefill valve, preceding braking accumulator, rear braking accumulator,
Parking/promptly use accumulator and handlance；
Parking/the emergency brake is adjustable pressure reversal valve, equipped with four interfaces, including interface P5, interface T3, interface
The oil outlet connection of interface R1 and check valve that A5 and interface A6, interface P5 pass through hydralic hose and handlance, interface T3 and liquid
Pressure oil case connects, and interface A5 be connected with the interface A7 of gas control flushing valve, and the accumulator of interface A6 and parking/promptly and parking/tightly
Anxious pressure gauge connection；
The service brake valve is connected adjustable brake valve for double loop, and valve group is equipped with five interfaces, including interface P1,
Interface P2, interface A1, interface A2 and interface T1, interface P1 are connected with preceding brake accumulator and preceding brake pressure table, interface P2
Be connected with rear brake accumulator and rear brake pressure table, interface A1 respectively with the interface X1 of Multi-functional brake before the right side and left front
The interface X2 connections of Multi-functional brake, interface A2 the interface X3 with Multi-functional brake behind the right side and left back Multifunctional brake respectively
The interface X4 connections of device, interface T1 are connected with hydraulic oil container；
The gas control flushing valve is equipped with five interfaces, including interface A7, interface T4, interface C, interface D and interface P6, interface A7
Mouthful be connected with the interface A5 of parking/emergency brake, interface T4 is connected with hydraulic oil container, interface C respectively with multi-functional system before the right side
The interface Z1 of dynamic device is connected with the interface Z2 of left front Multi-functional brake, interface D interfaces with Multi-functional brake behind the right side respectively
Z3 is connected with the interface Z4 of left back Multi-functional brake 15, interface P6 and gas control emergency stop valve, fuel cut-off control cylinder and master cylinder of dying
Connection；
The prefill valve has been internally integrated two-way shuttle valve, equipped with six interfaces, including interface P3, interface A3, interface A4, interface
SW, interface T2 and interface O, P3 mouthfuls of interface is pressure port, is connected with hydraulic pump output port；Interface A3 and preceding braking accumulation of energy
Device connection, interface A4 are connected with rear braking with accumulator, the interface R1 of interface SW and handlance and parking/emergency brake
Interface P5 connections, interface T2 and interface O are connected with hydraulic oil container.
The Multi-functional brake includes quiet shell, middle case, dynamic shell, bearing I, bearing II, stationary plate, movable plate, valve piston
With big piston, the quiet shell is connected by quiet shell bolt with axle housing fixed disk, and middle case is connected by bolt and quiet shell and end cap
Connect, move shell and be installed on by half axle bolt and half axis connection, bearing I, bearing II on central siphon, tyre rim is pacified by tire bolt
On dynamic shell, stationary plate is installed on middle case, and movable plate is installed on dynamic shell, and valve piston and big piston are installed on middle case,
Movable plate and dynamic shell are rotated with tyre rim.
Compared with prior art, it is urgent in flame proof rubber tyre vehicle driving or brake failure etc. the beneficial effects of the invention are as follows providing
In the case of, pull-up emergency brake can carry out a kind of braking system of effective emergency braking, ensure personnel safety；There is provided explosion-proof
The cab door of rubber-tired cart can make engine auto extinguishing when being opened unintentionally, and can make the self-stopping one kind of flame proof rubber tyre vehicle
Braking system.
Brief description of the drawings
Fig. 1 is the Multifunctional wheel-rim brake schematic diagram of the present invention；
Fig. 2 is the hydraulic braking schematic diagram of the present invention；
Fig. 3 is the pneumatic control schematic diagram of the present invention；
Fig. 4 is the positive structure diagram of the present invention；
Fig. 5 is the overlooking the structure diagram of the present invention；
1- hydraulic pumps in figure, 2- prefill valves, brake pressure table after 3-, brake pressure table before 4-, braking accumulator before 5-, 6-
Braking accumulator afterwards, 7- service brake valves, 8- parkings/emergency brake pressure table, 9- parkings/promptly use accumulator, 10- is stayed
Car/emergency brake, 11- gas control flushing valves, Multi-functional brake before the 12- right sides, the left front Multi-functional brakes of 13-, behind the 14- right sides
Multi-functional brake, the left back Multi-functional brakes of 15-, 16- handlances, 17- hydraulic oil containers, 18- air accumulators, 19- air control switchs
Valve, 20- electromagnetic valve of explosion isolation, 21- gas control emergency stop valves, 22- fuel cut-off control cylinders, 23- die master cylinder, 24- gas control trigger valves, 25-
Starter motor, 26- cab doors, 27- tyre rims, 28- tire bolts, the quiet shell bolts of 29-, 30- axle housing fixed disks, 31- are quiet
Shell, 32- middle cases, 33- end caps, 34- move shell, 35- bearings I, 36- bearings II, 37- central siphons, 38- semiaxis, half axle bolts of 39-,
40- stationary plates, 41- movable plates, 42- valve pistons, the big pistons of 43-.
Embodiment
With reference to attached drawing, the invention will be further described.
As shown in Figure 1, the quiet shell 31 of Multi-functional brake is connected by quiet shell bolt 29 with axle housing fixed disk 30, middle case
32 are connected by bolt with quiet shell 31 and end cap 33, and dynamic shell 34 is connected by half axle bolt 39 and semiaxis 38, bearing I 35, bearing
II 36 are installed on central siphon 37, and tyre rim 27 is installed on dynamic shell 34 by tire bolt 28.Stationary plate 40 is installed on middle case
On 32, movable plate 41 is installed on dynamic shell 34.Valve piston 42 and big piston 43 are installed on middle case 32.Movable plate 41 and dynamic shell 34 with
Tyre rim 27 rotates together.
As shown in Figure 1, Multi-functional brake 12 before the right side, left front Multi-functional brake 13, it is right after Multi-functional brake 14, left
Multi-functional brake 15 is fail safe type Wet-type multi-disc disk brake afterwards.It is Multi-functional brake 12 before the right side, left front multi-functional
Brake 13 is installed on the right side of preceding bridge fixed disk and left side, and Multi-functional brake 14, left back Multi-functional brake 15 are installed behind the right side
On the right side of rear axle fixed disk and left side.
As shown in Fig. 2, it is hydraulic braking schematic diagram.Including four groups of Multi-functional brakes, service brake valve 7, parking/urgent
Brake valve 10, gas control flushing valve 11, hydraulic pump 1, prefill valve 2, preceding braking accumulator 5, rear braking accumulator 6, parking/tight
Urgently needed accumulator 9 and handlance 16.Parking/emergency brake 10 is adjustable pressure reversal valve, equipped with four interfaces, including is connect
Mouthful P5, interface T3, interface A5 and interface A6, interface P5 are fuel-displaced by the interface R1 of hydralic hose and handlance 16 and check valve
Mouthful connection, interface T3 is connected with hydraulic oil container 17, and interface A5 is connected with the interface A7 of gas control flushing valve 11, and interface A6 and parking/
Urgent accumulator 9 and parking/emergency pressure table 8 connect.
In pull-up handle, interface P5 and interface A5 are communicated parking/emergency brake 10, and interface A5 and interface T3 are obstructed.
When putting down handle, interface P5 and interface A5 are obstructed, and interface A5 and interface T3 are communicated.
Service brake valve 7 is connected adjustable brake valve for double loop, and valve group is equipped with five interfaces, including interface P1,
Interface P2, interface A1, interface A2 and interface T1, interface P1 are connected with preceding braking accumulator 5 and preceding brake pressure table 4, connect
Brake pressure table 3 is connected with rear braking accumulator 6 and afterwards mouthful P2, and interface A1 connects with Multi-functional brake before the right side 12 respectively
Mouthful X1 is connected with the interface X2 of left front Multi-functional brake 13, interface A2 respectively with the interface X3 of Multi-functional brake behind the right side 14 and
The interface X4 connections of left back Multi-functional brake 15, interface T1 are connected with hydraulic oil container 17.
During brake pedal, the interface P1 and interface A1 of service brake valve 7 are communicated, and interface P2 and interface A2 are communicated, and are connect
Mouth T1 and interface A1 is obstructed, and interface T1 and interface A2 are obstructed.When loosening the brake, interface P1 and interface A1 are obstructed, interface P2
Obstructed with interface A2, interface T1 and interface A1 are communicated, and interface T1 and interface A2 are communicated.
The gas control flushing valve 11 is equipped with five interfaces, including interface A7, interface T4, interface C, interface D and interface P6,
A7 mouthfuls of interface is connected with the interface A5 of parking/emergency brake 10, and interface T4 is connected with hydraulic oil container 17, interface C respectively with the right side
The interface Z1 of preceding Multi-functional brake 12 is connected with the interface Z2 of left front Multi-functional brake 13, interface D respectively with more work(behind the right side
The interface Z3 of energy brake 14 is connected with the interface Z4 of left back Multi-functional brake 15, interface P6 and gas control emergency stop valve 21, oil-break
Master cylinder 22 and master cylinder 23 of dying connect.
When the interface P6 of gas control flushing valve 11 has compressed gas, interface A7 is communicated with interface C and interface D, and interface T4 is with connecing
Mouth C and interface D is obstructed.When interface P6 is without compressed gas, interface A7 and interface C and interface D are obstructed, interface T4 and interface C and connect
Mouth D is communicated.
The prefill valve 2 has been internally integrated two-way shuttle valve, equipped with six interfaces, including interface P3, interface A3, interface
A4, interface SW, interface T2 and interface O, P3 mouthfuls of interface are pressure port, are connected with 1 output port of hydraulic pump；Interface A3 and preceding system
Employ that accumulator 5 connects, interface A4 is connected with rear braking accumulator 6, the interface SW and interface R1 of handlance 16 and parking/
The interface P5 connections of emergency brake 10, interface T2 and interface O are connected with hydraulic oil container 17.
Prefill valve 2 has been internally integrated two-way shuttle valve, can independently give preceding braking accumulator 5 and rear braking accumulator 6
Filling liquid and be independent of each other, to 6 filling liquid of preceding brake accumulator 5 and rear brake accumulator when prefill valve 2 ensures to be less than threshold pression value,
Stop filling liquid during higher than pressure upper limit value, have throttling in prefill valve 2, ensure that prefill valve 2 carries out filling liquid with certain flow value.
As shown in Fig. 2, the interface X1 of Multi-functional brake 12, the interface X2 of left front Multi-functional brake 13 are front-wheel before the right side
Service brake interface, is connected by hydralic hose with the interface A1 of service brake valve 7.The interface of Multi-functional brake 14 behind the right side
X3, the interface X4 of left back Multi-functional brake 15 are rear wheel travelling crane braking interface, pass through connecing for hydralic hose and service brake valve 7
Mouth A2 connections.
The interface Z1 of Multi-functional brake 12 before the right side, the interface Z2 of left front Multi-functional brake 13 are front-wheel parking/urgent
Brake pipe interface, is connected by hydralic hose with the interface C of gas control flushing valve 11.The interface of Multi-functional brake 14 behind the right side
Z3, the interface Z4 of left back Multi-functional brake 15 are trailing wheel parking/emergency braking tubing interface, are changed by hydralic hose and gas control
The interface D connections of liquid valve 11.
As shown in Fig. 2, preceding brake accumulator 5, rear brake accumulator 6, parking/urgent 9 top of accumulator are full of a level pressure
Hydraulic oil liquid is filled in power nitrogen, lower part, and three accumulator filling liquids are given by prefill valve 2 by hydraulic pump 1.
After preceding brake accumulator 5, rear brake accumulator 6, parking/oil pressure promptly in accumulator 9 reach defined pressure,
Hydraulic oil directly flows into fuel tank from prefill valve 2 by filter, when the oil pressure in any one accumulator is less than defined pressure
Afterwards, hydraulic oil enters this accumulator again through prefill valve 2, until the oil pressure in this accumulator reaches defined pressure.
As shown in figure 3, it is pneumatic control schematic diagram.Aerobraking part further include air accumulator 18, gas controlling switch valve 19,
Explosion-proof solenoid valve 20, gas control trigger valve 24, starter motor 25, die master cylinder 23 and fuel cut-off control cylinder 22.
Gas control emergency stop valve 21 is two-bit triplet reversal valve, equipped with three interfaces, including interface P7, interface R2 and interface
A8, interface R2 the interface P12 with fuel cut-off control cylinder 22, the interface P11 for master cylinder 23 of dying and gas control flushing valve 11 respectively
The connection of P6 mouthfuls of interface, A8 mouthfuls of interface are provided with silencer, and stomata emergency stop valve 21 is provided with post rod type control button, under closure state
The medial surface of cab door acts on post rod type control button.
Gas control emergency stop valve 21 is two-bit triplet reversal valve, and when cab door is closed, the button of gas control emergency stop valve 21 pushes back, and connects
Mouth P7 and interface R2 is communicated, and source of the gas is connected；When cab door is opened, the button of gas control emergency stop valve 21 stretches out, interface P7 and interface
R2 is obstructed, and source of the gas is separated in interface P7.Gas control emergency stop valve 21 is installed on the inside of cab door.
Electromagnetic valve of explosion isolation 20 is normally closed type two position three way directional control valve, equipped with power connection end mouth L, interface R3 and interface P8, is connect
Electric port L is connected with external power supply case, the interface R3 and interface P7 of the gas control emergency stop valve 21 and interface P9 of gas control trigger valve 24,
Interface P8 is connected with the interface R5 of air control switch valve 19；Electromagnetic valve of explosion isolation 20 is installed on vehicle frame.
The power connection end mouth L of electromagnetic valve of explosion isolation 20 is connected by cable with external power supply case, and interface R3 passes through tracheae and gas control
The interface P7 of emergency stop valve 21 is connected with the interface P9 of gas control trigger valve 24, and interface P8 passes through tracheae and the interface of air control switch valve 19
R5 connections.
Gas control trigger valve 24 is two-bit triplet reversal valve, equipped with three interfaces, including interface P9, interface R4 and interface A10,
Interface P9 is connected with the interface R3 of electromagnetic valve of explosion isolation 20 and the interface P7 of gas control emergency stop valve 21, interface R4 and starter motor 25
One interface connection, interface A10 installation silencers.
During original state, i.e., explosion-proof engine shutdown status, interface P9 and interface R4 are obstructed.When pressing gas control trigger valve 24
Button when, interface P9 and interface R4 are communicated, at this time the compressed gas in air accumulator 18 by air control switch valve 19, flame proof electromagnetism
Valve 20 and gas control trigger valve 24 reach the entrance of starter motor 25, and high-pressure high-flow compressed gas promotes the tooth in starter motor 25
Wheel rotates at a high speed, the flywheel rotation on engine is driven, so as to start explosion-proof engine.
Starter motor 25 is installed on the flywheel interface of explosion-proof engine, for driving engine flywheel to rotate.
The service brake course of work：Service brake is hydraulic braking spring releasing pattern, and forward and backward braking is using individually double
Circuit braking system, each brake circuit use respective accumulator, and front wheel brake uses preceding brake accumulator 5, rear service brake
Use rear brake accumulator 6.When driver steps on service braking pedal, the interface P1 of service brake valve 7 is connected with interface A1,
Interface P2 is connected with interface A2, and the high pressure oil of preceding brake accumulator 5 exits into off-front wheel by the interface A1 of service brake valve 7
The interface X1 of Multi-functional brake 12 and the interface X2 of the near front wheel Multi-functional brake 13, the high pressure oil of rear brake accumulator 6 lead to
The interface A2 for crossing driving brake valve 7 exits into the interface X3 and off hind wheel Multi-functional brake of off hind wheel Multi-functional brake 14
15 interface X4, implements service brake or deceleration to flame proof rubber tyre vehicle.When unclamping foot pedal, the interface P1 of service brake valve 7
Disconnected with interface A1, interface P2 and interface A2 are disconnected, and interface A1 and interface A2 are communicated with interface T1, Multi-functional brake 12 before the right side
Hydraulic oil container 17 is flowed back to by interface T1 from the interface A1 of service brake valve 7 with the high pressure oil in left front Multi-functional brake 13,
High pressure oil behind the right side in Multi-functional brake 14 and left back Multi-functional brake 15 passes through interface from the interface A2 of service brake valve 7
T1 flows back to hydraulic oil container 17, releases service brake.
Release parking braking process：When needing to release parking braking, driver unclamps the hand of parking/emergency brake 10
Handle, the interface P5 and interface A5 of parking/emergency brake 10 are communicated, and interface A5 and interface T3 are obstructed, parking/emergency braking accumulation of energy
The high-voltage oil liquid of device 9 exits into the interface A7 of gas control flushing valve 11 by the interface A5 of parking/emergency brake 10, passes through C
Mouth enters the interface Z1 of off-front wheel Multi-functional brake 12 and the interface Z2 of left front Multi-functional brake 13, by gas control flushing valve
11 interface D enters the interface Z3 of off hind wheel Multi-functional brake 14 and the interface Z4 of left back Multi-functional brake 15, releases car
Parking braking.
The emergency braking course of work：Emergency braking uses the form of spring braking hydraulic pressure release, and Multi-functional brake is realized
Front and rear emergency braking.When needing emergency braking, the handle of driver's pull-up parking/emergency brake 10, parking/emergency brake
10 interface P5 and interface A5 is obstructed, and interface A5 and interface A6 are obstructed, and interface A5 and interface T3 are communicated, cut-out parking/urgent storage
Energy device 9 flows to the high-voltage oil liquid of parking/emergency brake 10, at this time the interface Z1 of Multi-functional brake 12 and left front more work(before the right side
Interface C and interface T4 of the interface Z2 high pressure oils of energy brake 13 Jing Guo gas control flushing valve 11 flow back to hydraulic oil container 17, more after right
The interface D of the interface Z3 of function brake 14 and the interface Z4 high pressure oils of left back Multi-functional brake 15 Jing Guo gas control flushing valve 11
Emergency braking is implemented to vehicle to hydraulic oil container 17, Multi-functional brake is flowed back to interface T4.
The door protection automatic braking course of work：When cab door 26 is closed, at the button of gas control emergency stop valve 21
In compressive state, interface P7 and interface R2 are communicated, and open battery main switch, and electromagnetic valve of explosion isolation 20 is powered, interface P8 and interface R3
Communicate, open air control switch valve 19 and switch, interface P10 and interface R5 are communicated, and the compressed gas in air accumulator 18 is opened by gas control
The interface P10 and interface R5 for closing valve 19 reach the interface P8 and interface R3 of electromagnetic valve of explosion isolation 20, pass through connecing for gas control emergency stop valve 21
Mouth P7 and interface R2, reaches fuel cut-off control cylinder 22 and die master cylinder 23 and the interface P6 of gas control flushing valve 11, fuel cut-off control cylinder
22 open respectively with master cylinder 23 of dying, and the interface A7 and interface C of gas control flushing valve 11 are communicated at this time, interface A7 and interface D phases
It is logical, the handle of parking/emergency brake 10 is unclamped, the high-voltage oil liquid of parking/emergency braking accumulator 9 passes through parking/urgent system
Dynamic valve 10 and gas control flushing valve 11, from interface C and interface D arrive separately at the right side before Multi-functional brake 12 interface Z1, left front more
The interface Z2 of function brake 13, it is right after the interface Z3 of the Multi-functional brake 14 and interface Z4 of left back Multi-functional brake 15,
Release parking braking.Gas control trigger valve 24 is pressed at this time, and compressed gas reaches starter motor 25, completes flame proof rubber tyre vehicle and starts.
When cab door 26 is opened, the interface P7 and interface R2 of gas control emergency stop valve 21 are disconnected, and compressed gas is separated, and are broken
The source of the gas of oily master cylinder 22 and master cylinder 23 of dying is closed, and cuts off the oil circuit and gas circuit of explosion-proof engine, engine misses.Compression
Gas can not reach the interface P6 of gas control flushing valve 11, and the interface T4 and interface C of gas control flushing valve 11 are communicated, interface T4 and interface
D is communicated, Multi-functional brake behind the interface Z1 of Multi-functional brake 12, the interface Z2 of left front Multi-functional brake 13, the right side before the right side
Interface T4 flows back to hydraulic oil container 17 respectively for 14 interface Z3 and the interface Z4 high pressure oils of left back Multi-functional brake 15, completes explosion-proof
Rubber-tired cart stops in emergency.
Claims (4)
1. the hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door, it is characterised in that：Including hydraulic braking portion
Divide and pneumatic brake portion；
The hydraulic braking part includes four groups of Multi-functional brakes, service brake valve（7）, parking/emergency brake（10）
And gas control flushing valve（11）, four groups of Multi-functional brakes are separately mounted at left and right sides of front-rear axle, each multi-functional system
Dynamic device passes through service brake valve（7）And gas control flushing valve（11）Control, parking/emergency brake（10）Control gas control flushing valve
（11）；
The aerobraking part includes gas control emergency stop valve（21）, the gas control emergency stop valve（21）Including button, button leads to
Cross the cab door control of the flame proof rubber tyre vehicle under closure state, the stomata emergency stop valve（21）Also the gas control is controlled to change
Liquid valve（11）.
2. the hydraulic-pneumatic composite braking system according to claim 1 for the protection of flame proof rubber tyre vehicle band door, its feature
It is：The aerobraking part further includes air accumulator（18）, air control switch valve（19）, explosion-proof solenoid valve（20）, gas control opens
Dynamic valve（24）, starter motor（25）, master cylinder of dying（23）And fuel cut-off control cylinder（22）；
The gas control emergency stop valve（21）For two-bit triplet reversal valve, equipped with three interfaces, including interface P7, interface R2 and connect
Mouthful A8, interface R2 respectively with fuel cut-off control cylinder（22）Interface P12, master cylinder of dying（23）Interface P11 and gas control change liquid
Valve（11）The connection of P6 mouthfuls of interface, A8 mouthfuls of interface is provided with silencer, stomata emergency stop valve（21）Post rod type control button is provided with,
The medial surface of cab door acts on post rod type control button under the closure state；
The electromagnetic valve of explosion isolation（20）For normally closed type two position three way directional control valve, equipped with power connection end mouth L, interface R3 and interface
P8, power connection end mouth L are connected with external power supply case, interface R3 and gas control emergency stop valve（21）Interface P7 and gas control trigger valve（24）
Interface P9, interface P8 and air control switch valve（19）Interface R5 connections；
The gas control trigger valve（24）For two-bit triplet reversal valve, equipped with three interfaces, including interface P9, interface R4 and interface
A10, interface P9 and electromagnetic valve of explosion isolation（20）Interface R3 and gas control emergency stop valve（21）Interface P7 connections, interface R4 with start
Motor（25）An interface connection, interface A10 installation silencer.
3. the hydraulic-pneumatic composite braking system according to claim 1 or 2 for the protection of flame proof rubber tyre vehicle band door, its
It is characterized in that：The hydraulic braking part further includes hydraulic pump（1）, prefill valve（2）, preceding braking accumulator（5）, rear braking
Use accumulator（6）, parking/promptly use accumulator（9）And handlance（16）；
Parking/the emergency brake（10）Adjustable pressure reversal valve, equipped with four interfaces, including interface P5, interface T3,
Interface A5 and interface A6, interface P5 pass through hydralic hose and handlance（16）Interface R1 connected with the oil outlet of check valve, connect
Mouth T3 and hydraulic oil container（17）Connection, interface A5 and gas control flushing valve（11）Interface A7 connections, interface A6 and parking/urgent store
Can device（9）And parking/emergency pressure table（8）Connection；
The service brake valve（7）For the adjustable brake valve of double loop series connection, valve group is equipped with five interfaces, including interface
P1, interface P2, interface A1, interface A2 and interface T1, interface P1 and preceding braking accumulator（5）And preceding brake pressure table（4）
Connection, interface P2 and rear braking accumulator（6）And rear brake pressure table（3）Connection, interface A1 respectively with it is multi-functional before the right side
Brake（12）Interface X1 and left front Multi-functional brake（13）Interface X2 connections, interface A2 respectively with multi-functional system behind the right side
Dynamic device（14）Interface X3 and left back Multi-functional brake（15）Interface X4 connections, interface T1 and hydraulic oil container（17）Connection；
The gas control flushing valve（11）Equipped with five interfaces, including interface A7, interface T4, interface C, interface D and interface P6, connect
A7 mouthfuls of mouth and parking/emergency brake（10）Interface A5 connections, interface T4 and hydraulic oil container（17）Connection, interface C respectively with
Multi-functional brake before the right side（12）Interface Z1 and left front Multi-functional brake（13）Interface Z2 connections, interface D respectively with the right side
Multi-functional brake afterwards（14）Interface Z3 and left back Multi-functional brake（15）Interface Z4 connections, interface P6 and gas control emergency stop
Valve（21）, fuel cut-off control cylinder（22）And master cylinder of dying（23）Connection；
The prefill valve（2）Be internally integrated two-way shuttle valve, equipped with six interfaces, including interface P3, interface A3, interface A4,
Interface SW, interface T2 and interface O, P3 mouthfuls of interface is pressure port, with hydraulic pump（1）Output port connects；Interface A3 and preceding braking
Use accumulator（5）Connection, interface A4 and rear braking accumulator（6）Connection, interface SW and handlance（16）Interface R1 and
Parking/emergency brake（10）Interface P5 connections, interface T2 and interface O and hydraulic oil container（17）Connection.
4. the hydraulic-pneumatic composite braking system according to claim 3 for the protection of flame proof rubber tyre vehicle band door, its feature
It is：The Multi-functional brake includes quiet shell（31）, middle case（32）, dynamic shell（34）, bearing I（35）, bearing II（36）、
Stationary plate（40）, movable plate（41）, valve piston（42）With big piston（43）, the quiet shell（31）Pass through quiet shell bolt（29）With axle housing
Fixed disk（30）Connection, middle case（32）Pass through bolt and quiet shell（31）And end cap（33）Connection, moves shell（34）Pass through semiaxis spiral shell
Bolt（39）And semiaxis（38）Connection, bearing I（35）, bearing II（36）Installed in central siphon（37）On, tyre rim（27）Pass through wheel
Tire bolt（28）Installed in dynamic shell（34）On, stationary plate（40）Installed in middle case（32）On, movable plate（41）Installed in dynamic shell（34）
On, valve piston（42）With big piston（43）Installed in middle case（32）On, movable plate（41）With dynamic shell（34）With tyre rim（27）
Rotate together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710661125.2A CN107972650B (en) | 2017-08-04 | 2017-08-04 | Hydraulic-pneumatic composite braking system with door protection for explosion-proof rubber-tyred vehicle |
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| CN109229134A (en) * | 2018-11-14 | 2019-01-18 | 粤水电轨道交通建设有限公司 | The anti-slip brake apparatus of the two-way emergency of electric locomotive |
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| CN116161003A (en) * | 2022-12-31 | 2023-05-26 | 江苏天明特种车辆有限公司 | Automatic shutdown braking system of mining explosion-proof trackless rubber-tyred vehicle |
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