CN205239160U - Control system of power takeoff - Google Patents

Abstract

The utility model discloses a control system of power takeoff, including desicator, regeneration gas receiver, second return circuit gas receiver, the first loop gas receiver, parking return circuit gas receiver, four return valves, control switch, distribution valve, its characterized in that: still include overflow valve, normal close separation switch, normally open separation switch, check valve, gas receiver and bi -pass check valve, adopt the utility model discloses not only can make the vehicle start work at air -free or atmospheric pressure less than preferential, the quick aerate of realization power takeoff under the circumstances, the assurance mobile unit very first time, when the vehicle need not carry out the preferential air feed of power takeoff, also this system configuration was adjusted to the accessible, and messenger's vehicle still can satisfy the use for the preferential air feed of braking system. The realization reduces the latency that the power takeoff reaches normal operating conditions not enough or preferential the aerifing of in a particular case realization power takeoff of vehicle atmospheric pressure.

Description

A kind of control system of power takeoff

Technical field

The utility model belongs to field, is specifically related to a kind of control system of power takeoff.

Background technology

At present, the equipment that existing commercial car is controlled by power takeoff, it controls source of the gas all from chassisThe brakes auxiliary air passage of vehicle. In real work, after vehicle ignition, by four loop protectionsValve, is preferably first, second loop inflation that is respectively used to the forward and backward bridge braking of vehicle. When two loopsAfter reaching regulation air pressure, could start as auxiliary air passage inflation ability after auxiliary air passage reaches specified air pressureStart to support power takeoff normally to work. The equipment that existing commercial car is controlled by power takeoff, its controlSource of the gas is all from the brakes auxiliary air passage of chassis vehicle. In real work, after vehicle ignition,Brakes auxiliary air passage air pressure must reach rule at the gas receiver that is respectively used to the forward and backward bridge braking of vehicleDetermine could start inflation after air pressure. Just because of this gas circuit distribution method, for vehicle can be the shortestTime has safety arrestment provides guarantee. But for some, the special vehicle of special equipment is installed, asThe vehicles such as emergency dealing, rescue, safety guarantee, are running under emergency case, just need to be at first o'clockChien shih mobile unit starts, work. But now equipment because of vehicle be brakes supplement source of the gasCan not start, delay the quality time.

Utility model content

The purpose of this utility model is to provide a kind of control system of power takeoff, can make vehicle without gasOr realize in the not enough situation of air pressure that power takeoff is preferential, fast aeration, thereby while ensureing mobile unit the firstBetween startup work.

The technical solution of the utility model is: a kind of control system of power takeoff, comprise drier 1,Regeneration gas receiver 2, second servo loop gas receiver 3, the first loop gas receiver 4, parking loop gas receiver 5,Four return valves 6, gauge tap 7, distributing valve 8; It is characterized in that: also comprise overflow valve 9, normally closedSeparating switch 10, often open separating switch 11, gas receiver 12, double-way check valve 13 and two check valves14、15；

The regeneration gas outlet of drier is connected with regeneration gas receiver; First of the first gas outlet of drierRoad is connected with the air inlet of four return valves by overflow valve, the second tunnel successively with the entering of normally closed separating switchThe air inlet of the input port of gas port, check valve and four return valves connects, and Third Road connects successively often to be opened pointLeave the second air inlet of air inlet, gas receiver and the double-way check valve of air inlet, the check valve of pass;

Four gas outlets of four return valves respectively with second servo loop gas receiver, the first loop gas receiver, stayOne end of car loop gas receiver and distributing valve is connected, first of the other end of distributing valve and double-way check valveAir inlet connects; The delivery outlet of double-way check valve is connected with the air inlet of gauge tap, gauge tapDelivery outlet connects power takeoff.

Beneficial effect: adopt the utility model not only can make vehicle in without the not enough situation of gas or air pressureRealize that power takeoff is preferential, fast aeration, ensure that the mobile unit very first time starts work, when vehicle notNeed to carry out the preferential air feed of power takeoff time, also can, by adjusting the setting of this system, vehicle still can be metFor the use of the preferential air feed of brakes. Realize in vehicle air pressure deficiency or in particular cases realize power takingDevice is preferentially inflated, and minimizing power takeoff reaches the stand-by period of normal operating conditions.

Brief description of the drawings

Fig. 1 is systematic schematic diagram of the present utility model.

Detailed description of the invention

For making the purpose of this utility model, content and advantage clearer, below in conjunction with accompanying drawing and realityExecute example, detailed description of the invention of the present utility model is described in further detail.

As shown in Figure 1, a kind of control system of power takeoff, comprises drier 1, regeneration gas receiver 2, theSecondary circuit gas receiver 3, the first loop gas receiver 4, parking loop gas receiver 5, four return valves 6, controlSwitch 7, distributing valve 8; It is characterized in that: also comprise overflow valve 9, normally closed separating switch 10, Chang KaifenLeave pass 11, gas receiver 12, double-way check valve 13 and two check valves 14,15;

The regeneration gas outlet of drier is connected with regeneration gas receiver; First of the first gas outlet of drierRoad is connected with the air inlet of four return valves by overflow valve, the second tunnel successively with the entering of normally closed separating switchThe air inlet of the input port of gas port 21, check valve 14 and four return valves connects, and Third Road connects often successivelyOpen air inlet 31, the check valve 15 of separating switch air inlet, gas receiver and double-way check valveTwo air inlets;

Four gas outlets of four return valves respectively with second servo loop gas receiver, the first loop gas receiver, stayOne end of car loop gas receiver and distributing valve is connected, first of the other end of distributing valve and double-way check valveAir inlet connects; The delivery outlet of double-way check valve is connected with the air inlet of gauge tap, gauge tapDelivery outlet connects power takeoff. Gauge tap is two-bit triplet knob valve, and the capacity of gas receiver is 5L.

In the time not needing power takeoff 16 preferential fast aeration, normally closed separating switch 10 is opened to Chang KaiSeparating switch 11 is closed, and overflow valve disconnects, and often opens the delivery outlet 32 of separating switch to the air inlet of check valveMouth air is discharged from the exhaust outlet 33 of often opening separating switch, and power takeoff fast aeration loop disconnects, with realityThe normal air feed of existing vehicle.

During when vehicle air pressure deficiency or without gas, for realizing the preferential fast aeration of power takeoff, by normally closed separationSwitch cuts out, and the air of the air inlet of delivery outlet 22 to four return valves of normally closed separating switch is from normally closed pointLeave the exhaust outlet 23 of pass and discharge, the air inlet pipeline of normally closed separating switch to four return valve disconnects, overflowValve has pressure setting function, before it is opened, will often open separating switch simultaneously and open, drierThe air of one gas outlet preferentially arrives power takeoff through often opening separating switch, now, and when power takeoff canWhen normal work, its pipeline air pressure no longer raises, and the admission pressure of overflow valve is elevated to specified unlatchingWhen pressure, overflow valve is opened, and can realize the inflation in other loops of vehicle.

Carry out power takeoff and reach the nominal operation air pressure time to having a competition vehicle of the present utility model is installedTest, draw following data:

Table 1-demonstration test statistical form

Can draw by experiment, the utility model adopts 5L gas receiver, can greatly reduce vehicle-mounted establishingThe time of standby startup work.

The above is only preferred embodiment of the present utility model, it should be pointed out that for this technology and leadsThe those of ordinary skill in territory, not departing under the prerequisite of the utility model know-why, all rightMake some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.

Claims (3)

1. a control system for power takeoff, comprises drier, regeneration gas receiver, second servo loop gas storageCylinder, the first loop gas receiver, parking loop gas receiver, four return valves, gauge tap, distributing valve;It is characterized in that: also comprise overflow valve, normally closed separating switch, often open separating switch, check valve, storageInflator and double-way check valve;

The regeneration gas outlet of drier is connected with regeneration gas receiver; First of the first gas outlet of drierRoad is connected with the air inlet of four return valves by overflow valve, the second tunnel successively with the entering of normally closed separating switchThe air inlet of the input port of gas port, check valve and four return valves connects, and Third Road connects successively often to be opened pointLeave the second air inlet of air inlet, gas receiver and the double-way check valve of air inlet, the check valve of pass;

Four gas outlets of four return valves respectively with second servo loop gas receiver, the first loop gas receiver, stayOne end of car loop gas receiver and distributing valve is connected, first of the other end of distributing valve and double-way check valveAir inlet connects; The delivery outlet of double-way check valve is connected with the air inlet of gauge tap, gauge tapDelivery outlet connects power takeoff.

2. the control system of a kind of power takeoff according to claim 1, is characterized in that: gas storageThe capacity of cylinder is 5L.

3. the control system of a kind of power takeoff according to claim 1 and 2, is characterized in that:Gauge tap is two-bit triplet knob valve.