The content of the invention
In view of this, it is wet it is a primary object of the present invention to provide a kind of gas control of small, the convenient delivery maintenance of brake inertia
The explosion-proof decompression brakes of formula.
To reach above-mentioned purpose, the invention provides a kind of explosion-proof decompression brakes of gas control wet type, a kind of gas control wet type
Explosion-proof decompression brakes, it includes hand brake valve, foot brake valves, decompression Pneumatic valve, gas-liquid booster, storage oil drum and wet type system
Dynamic device;Wherein described hand brake valve, decompression Pneumatic valve pass sequentially through tracheae with gas-liquid booster and connected, the hand brake valve also with
The storage oil drum is connected by tracheae;Between the foot brake valves and gas-liquid booster, foot brake valves and decompression Pneumatic valve respectively
Connected by tracheae, the gas-liquid booster is connected with wet brake by oil pipe, it is described storage oil drum respectively with the gas-liquid
Booster is connected with wet brake by oil pipe, by being braked to the wet brake fuel feeding with releasing, to wet braking
Device discharges oil pressure to be braked.
Preferably, described gas-liquid booster the right and left is respectively arranged with cylinder and oil cylinder, longitudinally disposed in the cylinder
There is cylinder piston, Cylinder Plunger is horizontally arranged with the oil cylinder, be provided with two blow vents on the cylinder, on the oil cylinder
It is provided with two hydraulic fluid ports.
Preferably, the storage oil drum is provided with three hydraulic fluid ports, wherein the 3rd hydraulic fluid port for storing oil drum increases with the gas-liquid
Oil pipe between first hydraulic fluid port of depressor is provided with stop valve.
Preferably, the foot brake valves are provided with two air inlets and two gas outlets, and two of which air inlet includes first
Air inlet and the second air inlet, two gas outlets include the first gas outlet and the second gas outlet, and the first of the foot brake valves enter
Gas port is communicated by the first gas outlet with the decompression Pneumatic valve, and the second air inlet of the foot brake valves passes through the second gas outlet
Communicated with the second blow vent of the gas-liquid booster.
Preferably, the hand brake valve is provided with two blow vents, wherein the first blow vent of the hand brake valve passes through institute
The second blow vent for stating hand brake valve divides two-way to be communicated respectively with the decompression Pneumatic valve and storage oil drum.
Preferably, the oil pipe between first hydraulic fluid port for storing oil drum and the wet brake is provided with manual pump, institute
The oil inlet for stating manual pump communicates with the first hydraulic fluid port of the storage oil drum, oil-out and the wet brake of the manual pump
Oil inlet communicate.
Preferably, the oil pipe between second hydraulic fluid port for storing oil drum and the second hydraulic fluid port of the gas-liquid booster is provided with
Check valve.
The explosion-proof decompression brakes of gas control wet type of the present invention, realize that decompression is braked by pressure control, brake inertia is small,
Using safety and reliability, it manually can also release braking by oil pump in the case where air braking system is ineffective, facilitate car
Delivery maintenance.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As shown in figure 1, the present invention the explosion-proof decompression brakes of gas control wet type include hand brake valve 1 (i.e. parking braking),
Foot brake valves 2 (i.e. service brake), decompression Pneumatic valve 3, gas-liquid booster 4, storage oil drum 5 and wet brake 9.It is wherein hand braking
Valve 1, decompression Pneumatic valve 3 pass sequentially through tracheae with gas-liquid booster 4 and connected, and hand brake valve 1 is also connected with storing oil drum 5 by tracheae
For making storage oil drum 5 produce precompressed, lead to respectively between foot brake valves 2 and gas-liquid booster 4, foot brake valves 2 and decompression Pneumatic valve 3
Cross tracheae connection.Gas-liquid booster 4 is connected with wet brake 9 by oil pipe, store oil drum 5 respectively with gas-liquid booster 4 and wet
Connected between formula brake 9 by oil pipe, by controlling the cylinder piston 42 of gas-liquid booster 4 to move back and forth, make gas-liquid pressure-boosting
Fluid disengaging wet brake 9 in the oil cylinder 43 of device 4, to the fuel feeding of wet brake 9 to release braking, to wet brake 9
Oil pressure is discharged to be braked.
The right and left of gas-liquid booster 4 in the present invention is respectively arranged with cylinder 41 and oil cylinder 43, is longitudinally set in cylinder 41
Cylinder piston 42 is equipped with, Cylinder Plunger 44 is horizontally arranged with oil cylinder 43, is provided with two blow vents on cylinder 41, on oil cylinder 43
It is provided with two hydraulic fluid ports.
The storage oil drum 5 of the present invention is provided with three hydraulic fluid ports, wherein the 3rd hydraulic fluid port T5 and gas-liquid booster 4 the first hydraulic fluid port C
Between oil pipe be provided with stop valve 7.
Hand brake valve 1 in the present invention is provided with two blow vents, wherein the first blow vent P1 of the hand brake valve 1 passes through
Second blow vent S1 divides two-way to be communicated respectively with decompression Pneumatic valve 3 and storage oil drum 5.When braking is released before driving, hand brake valve 1
Driving position is placed in, i.e. the first blow vent P1 of hand brake valve 1 communicates with the second blow vent S1, and compressed air passes through the first blow vent
Arrive the first blow vent A of gas-liquid booster 4 after P1 and the second blow vent S1 through decompression Pneumatic valve 3 all the way, into cylinder 41, make gas
Cylinder piston 42 moves right;Another way is entered in storage oil drum 5 by storing the air inlet of oil drum 5, storage oil drum 5 is produced precompressed.Cut
Only valve 7 is connected, and hydraulic oil enters oil cylinder 43 by the 3rd hydraulic fluid port T5 and gas-liquid booster 4 that store oil drum 5 the first hydraulic fluid port C, by
Being moved right in piston 42 is pressurized oil cylinder 43, makes hydraulic oil by the second hydraulic fluid port D of gas-liquid booster 4 to wet brake 9,
Oil pressure, which is provided, for wet brake 9 releases braking.
When parking or ramp parking need braking, hand brake valve 1 is placed in parking position, the first blow vent P1 of hand brake valve 1
Closed with the second blow vent S1, the compressed air in cylinder 41 is by the first blow vent A of gas-liquid booster 4, through decompression gas control
Valve 3 is discharged in air, is reduced air pressure in cylinder 41, is moved to the left cylinder piston 42, the decompression of oil cylinder 43, hydraulic oil is by wet type
Second hydraulic fluid port D of the brake 9 through gas-liquid booster 4 enters oil cylinder 43, then the first hydraulic fluid port C and storage oil for passing through gas-liquid booster 4
3rd hydraulic fluid port T5 of bucket, which is entered, stores oil drum 5, wet brake 9 is discharged oil pressure to be braked.
Foot brake valves 2 in the present invention are provided with two air inlets and two gas outlets, and two of which air inlet includes first
Air inlet T2 and the second air inlet P2, two gas outlets include the first gas outlet Q2 and the second gas outlet S2, wherein the first air inlet
Mouth T2 is communicated by the first gas outlet Q2 with decompression Pneumatic valve 3, and the second air inlet P2 passes through the second gas outlet S2 and gas-liquid pressure-boosting
Second blow vent B of device 4 is communicated.When braking or brake hard are needed during driving, foot brake valves 2 are stepped on, now compressed air one
Road, by the second gas outlet S2 to gas-liquid booster 4 the second blow vent B, makes cylinder from the second air inlet P2 of foot brake valves 2
Piston 42 is moved to the left, the decompression of oil cylinder 43, and hydraulic oil enters oil cylinder by the second hydraulic fluid port D of the wet brake 9 through gas-liquid booster 4
43, then enter by the first hydraulic fluid port C of gas-liquid booster 4 and the 3rd hydraulic fluid port T5 of storage oil drum and store oil drum 5, make wet brake
9 discharge oil pressure to be braked;Another way passes through the first gas outlet Q2 to gas-liquid pressure-boosting from the first air inlet T2 of foot brake valves 2
The A mouths of device, the compressed air in cylinder 41 are discharged to greatly by the first blow vent A of gas-liquid booster 4 by decompression Pneumatic valve 3
In gas, so as to coordinate cylinder piston 42 to continue to be moved to the left, oil cylinder 43 is set to continue decompression, wet brake 9 continues to discharge oil pressure
To accelerate braking.Decompression vapour control valve 3 in the present invention is mainly used in making the decompression of gas-liquid booster 4, accelerates the gas of gas-liquid booster 4
The movement velocity of cylinder piston 42, and then improve retro-speed.
In other 2 hydraulic fluid ports of the storage oil drum 5 of the present invention, between the first hydraulic fluid port R5 and wet brake 9 that store oil drum 5
Oil pipe is provided with manual pump 8, and the oil inlet of manual pump 8 communicates with storing the first hydraulic fluid port R5 of oil drum 5, the oil-out of manual pump 8 with
The oil inlet of wet brake 9 communicates, and in the case where power driven system is ineffective, manually pump 8 makes the liquid in storage oil drum 5
Force feed enters wet brake 9, and oil pressure is provided to release braking for wet brake 9, facilitates vehicle delivery maintenance.Store oil drum 5
The second hydraulic fluid port S5 and gas-liquid booster 4 the second hydraulic fluid port D between oil pipe be provided with check valve 6.The one side of check valve 6 is used for
When manual pump 8 releases braking to wet brake 9, prevent hydraulic oil returns from storing oil drum 5, hydraulic oil is fully entered wet brake
9, so as to accelerate to release braking;When being on the other hand used for hand brake valve 1 to the releasing braking of wet brake 9, to prevent gas-liquid from increasing
Cylinder Plunger 44 in depressor 4 moves too fast and forms vacuum in its front end, gives oil cylinder 43 pre- repairing.
As can be seen here, the explosion-proof decompression brakes of gas control wet type of the invention, realize that decompression is braked by pressure control, system
Dynamic inertia is small, and using safety and reliability, manually system can also be released by oil pump in the case where air braking system is ineffective
It is dynamic, facilitate the delivery of vehicle to repair.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.