The content of the invention
The present invention can not realize switching under different operating modes to solve existing colliery rubber-tired cart so that the fuel oil of rubber-tired cart
The problem of consumption rate remains high, there is provided one kind four or six drives switching parking detection protection system.
The present invention adopts the following technical scheme that realization:One kind four or six drives switching parking detection protection system, including two
Threeway Pneumatic valve I, two-bit triplet Pneumatic valve II, two-bit triplet Pneumatic valve III, two-bit triplet Pneumatic valve IV, two-bit triplet gas control
Valve V, solution locking-valve, pilot operated directional control valve, Pneumatic reversal valve I, gas-liquid dual control reversal valve, Pneumatic reversal valve II and shuttle valve.
Wherein 1. mouth is connected the air inlet of pilot operated directional control valve with main gas bag, the gas outlet of pilot operated directional control valve 2. mouth and solution locking-valve
Air inlet 1. mouth connects, solving the gas outlet of locking-valve, 2. mouth is connected with Pneumatic reversal valve II, solve the gas outlet of locking-valve 2. mouth also with
1. mouth connects for two-bit triplet Pneumatic valve II control mouth and two-bit triplet Pneumatic valve V air inlet, two-bit triplet Pneumatic valve V's
2. mouth is connected with two-bit triplet Pneumatic valve IV control mouth for gas outlet, two-bit triplet Pneumatic valve V control mouth respectively with shuttle valve
2. 1. mouth connects mouth and two-bit triplet Pneumatic valve I air inlet for one air inlet, two-bit triplet Pneumatic valve II gas outlets, two three
2. mouth is connected with main gas bag for logical Pneumatic valve IV gas outlet, two-bit triplet Pneumatic valve IV air inlet 1. mouth and two-bit triplet gas control
2. mouth connects for valve I gas outlet, two-bit triplet Pneumatic valve I exhaust outlet 3. mouth and two-bit triplet Pneumatic valve III air inlet 1.
Mouth connection, 1. mouth is connected two-bit triplet Pneumatic valve III control mouth with two-bit triplet Pneumatic valve II air inlet, two-bit triplet gas
3. mouth is connected control valve III exhaust outlet with main gas bag, the gentle voltage-controlled donsole of air inlet of the main gas bag also with gas-liquid dual control reversal valve
Connection, the oil pressure cntrol mouth input load pressure of gas-liquid dual control reversal valve, the gas outlet of gas-liquid dual control reversal valve 2. mouth and shuttle valve
Second air inlet is connected, and the exhaust outlet of shuttle valve is connected with Pneumatic reversal valve I.
The present invention is that one kind four or six drives switching parking detection protection system, and this four or six drives parking switch protecting system and include five
Individual two-bit triplet Pneumatic valve.After engine start, if switching two-bit triplet Pneumatic valve I is driven in operation four or six in the process of moving
When, because now vehicle is 4 wheel driven in the process of moving, hydraulic control can be promoted by treating that engine oil pressure gradually increases to after engine start
Reversal valve is commutated, and 2. mouth communicates with 3. mouth, and manually push-and-pull braking solution locking-valve is braked to vehicle solution.The gas for carrying out autonomous gas bag leads to
It is divided into two-way after crossing solution locking-valve:It is used to vehicle solution all the way brake;Another way is divided into two-way again, passes through two-bit triplet Pneumatic valve all the way
V 2. mouth is acted in two-bit triplet Pneumatic valve IV control mouth, promotes two-bit triplet Pneumatic valve IV commutations, two-bit triplet gas control
After valve IV commutations, 2. mouth disconnects with 1. mouth, and the gas in gas bag can not flow to four or six drive switching valves by two-bit triplet Pneumatic valve IV,
Two-bit triplet Pneumatic valve III is also at initial position, and 3. mouth and 1. mouth are obstructed, so as to avoid the mistake of driver in the process of moving
Operation, that is to say, that it is inoperative to pull two-bit triplet Pneumatic valve I switchings four or six in the process of moving and drive, and passes through the parking
Check device protects the stability of hydraulic system and reliability.After vehicle parking, if solution locking-valve is in pull-out state
When, that is, solve locking-valve 2. mouth with when 3. mouth communicates, now switch four or six drive switch two-bit triplet Pneumatic valve I when, can not also realize four
Six drive switching, only when the button for solving locking-valve is pressed, i.e., dead ship condition when, solution locking-valve be in original state, 2. mouth and 3. mouth
Cut-out, the gas for carrying out autonomous gas bag reach four or six drive switching two-bit triplet Pneumatic valve I's by two-bit triplet Pneumatic valve IV 2. mouth
2. mouth, when manipulating four or six and driving switching valve 1, this four or six drives switching valve commutation, and 2. mouth and 1. mouth communicates, realizes four or six drives of vehicle
Switching.Now two-bit triplet gas control is respectively acting on all the way by what four or six gases for driving switching two-bit triplet Pneumatic valve I were drawn
In valve II and two-bit triplet Pneumatic valve V control mouth, two-bit triplet Pneumatic valve V commutations, when vehicle will travel, solution braking is pulled out
The button of valve, the braking of vehicle solution, the two-bit triplet Pneumatic valve II at this moment wherein acted on all the way by solving the gas of locking-valve control mouth,
Two-bit triplet Pneumatic valve II commutates, and is instead drawn by four or six drive switching valves 1 when two-bit triplet Pneumatic valve II gas passes through two
Position threeway Pneumatic valve II 2. mouth is acted on 3. in the control mouth of valve, two-bit triplet Pneumatic valve III commutations, two-bit triplet Pneumatic valve
V 2. mouth and 1. mouth disconnect, and now the gas in main gas bag passes through two-bit triplet Pneumatic valve IV and two-bit triplet Pneumatic valve respectively
III is acted in four or six drive switching valves, ensures that the transport condition that switching valve does not interfere with vehicle yet is driven in driver's maloperation four or six,
Realize that vehicle drives transport condition in six all the time in the process of moving.Ensure the normally travel of vehicle, ensure the peace of hydraulic system
Full property and reliability.
1. mouth is that 2. mouth is that 3. mouth is exhaust outlet for gas outlet to air inlet in pneumatic operated valve.This patent is also observed above-mentioned acquiescence and advised
Then.
Compared with prior art, the drive of the present invention four or six parking detection means mainly includes 5 gas control two-bit triplets commutations
Valve.The device can realize the steady switching that rubber-tyred vehicle four or six drives, and four or six are operated in vehicle travel process and drives switching valve not
Work, the drive of switching four or six reversal valve 1 could realize the conversion that vehicle four or six drives after only stopping.The present invention is to reducing underground hair
The discharge of motivation, raising underground air quality have important practical significance.
Patent of the present invention realizes parking detection when rubber-tyred vehicle four or six drives switching first, and improve hydraulic system can
By property and security, four or six drive parking change detection device to improving this and both can be used for four or six drive switchings and can also be used for two 4 wheel drivens
Switching, existing rubber-tyred vehicle are all two drives, 4 wheel driven or six drives, it is impossible to realize the switching under different operating modes so that rubber-tired cart
Fuel consumption remains high, the present invention to reduce underground engine discharge, improve underground air quality it is significant.
With the continuous development of technology, some Large Coal Enterprises develop ten-million-ton scale fully-mechanized mining working,
Flame proof rubber tyre vehicle is in a large amount of uses of underground, and its exhaust emissions seriously pollutes underground air, to improve underground labour's building ring
Border, there is higher requirement to the discharge performance of rubber-tired cart.The invention achievement, it can effectively realize rubber-tired cart in different operating modes
The lower steady switching for realizing type of drive, both can guarantee that the Stability and dependability of hydraulic system, also can effectively improve and start
The discharge performance of machine.Energy-saving and emission-reduction of the apparatus of the present invention to underground vehicle have important realistic meaning.
Embodiment
As shown in figure 1, one kind four or six drives switching parking detection protection system, including two-bit triplet Pneumatic valve I1, two three
Logical Pneumatic valve II2, two-bit triplet Pneumatic valve III3, two-bit triplet Pneumatic valve IV4, two-bit triplet Pneumatic valve V5, solution locking-valve 6, liquid
Control reversal valve 7, Pneumatic reversal valve I8, gas-liquid dual control reversal valve 9, Pneumatic reversal valve II10 and shuttle valve 11.
Wherein 1. mouth is connected the air inlet of pilot operated directional control valve 7 with main gas bag, gas outlet 2. mouth and the unblock of pilot operated directional control valve 7
1. mouth is connected the air inlet of valve 6, and 2. mouth is connected with Pneumatic reversal valve II10 for the gas outlet of solution locking-valve 6, solves the gas outlet of locking-valve 6 2.
Also 1. mouth is connected mouth with the air inlet of two-bit triplet Pneumatic valve II2 control mouth and two-bit triplet Pneumatic valve V5, two-bit triplet
2. mouth is connected with two-bit triplet Pneumatic valve IV4 control mouth for Pneumatic valve V5 gas outlet, two-bit triplet Pneumatic valve V5 control mouth
Respectively with the air inlet of shuttle valve 11 first, two-bit triplet Pneumatic valve II2 gas outlets 2. mouth and two-bit triplet Pneumatic valve I1 air inlet
1. mouth is connected mouth, and 2. mouth is connected with main gas bag for two-bit triplet Pneumatic valve IV4 gas outlet, two-bit triplet Pneumatic valve IV4 air inlet
2. mouth is connected for mouth 1. mouth and two-bit triplet Pneumatic valve I1 gas outlet, two-bit triplet Pneumatic valve I1 exhaust outlet 3. mouth and two three
1. mouth connects logical Pneumatic valve III3 air inlet, and two-bit triplet Pneumatic valve III3 control mouth is with two-bit triplet Pneumatic valve II2's
Air inlet 1. mouth connect, 3. mouth is connected two-bit triplet Pneumatic valve III3 exhaust outlet with main gas bag, main gas bag also with gas-liquid dual control
The gentle voltage-controlled donsole connection of air inlet of reversal valve 9, the oil pressure cntrol mouth input load pressure of gas-liquid dual control reversal valve 9, gas-liquid
2. mouth is connected with the air inlet of shuttle valve 11 second for the gas outlet of dual control reversal valve 9, and exhaust outlet and the Pneumatic reversal valve I8 of shuttle valve 11 connect
Connect.