CN205315377U - Steering control valve - Google Patents
Steering control valve Download PDFInfo
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- CN205315377U CN205315377U CN201620062775.6U CN201620062775U CN205315377U CN 205315377 U CN205315377 U CN 205315377U CN 201620062775 U CN201620062775 U CN 201620062775U CN 205315377 U CN205315377 U CN 205315377U
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- oil mouth
- oil
- reversing valve
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Abstract
The utility model provides a steering control valve, including being provided with first hydraulic fluid port, the second hydraulic fluid port, the third hydraulic fluid port, the fourth hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port, the 7th hydraulic fluid port, the 8th hydraulic fluid port, the 9th hydraulic fluid port, the tenth hydraulic fluid port, the 11 hydraulic fluid port, the valve body of the 12 hydraulic fluid port, install the shuttle valve I in the valve body, two tee bend pilot operated directional control valves, two tee bend electric proportional switching -over valves I, shuttle valve II, shuttle valve III, the surge valve, the damping, check valve I, shuttle valve IV, tribit cross pilot operated directional control valve, the damping, shuttle valve V, two tee bend electric proportional switching -over valves II, two tee bend pilot operated directional control valves, check valve II, check valve III, mend oily overload valve, mend oily overload valve, shuttle valve VI, two tee bend pilot operated directional control valves, the damping, the two for two pilot operated directional control valve, the damping, the two for two pilot operated directional control valve. The utility model discloses have full hydraulic control and electro -hydraulic proportional drive -by -wire dual control, carry out duplicate protection from the security, still have manpower emergency steering function, can improve navigating mate's operability and reduction manipulation strength.
Description
Technical field
The utility model patent relates to the technical field of hydraulic such as engineering machinery, mining machinery, especially relates to a kind of course changing control valve.
Background technology
Along with maximization, the high speedization of engineering mechanical device, the high-power of steering hydraulic system, energy-saving and intellectuality become the matter of utmost importance of current development and apply, corresponding hydraulic system working pressure is also in quick increase, the middle low-pressure system of traditional product is replaced gradually, therefore, key element as hydraulic efficiency system cannot meet new demand, it is necessary to upgrading.
Summary of the invention
The purpose of this utility model just in order to satisfied upgrading, a kind of course changing control valve is provided for weak point existing in prior art. Course changing control valve of the present utility model has all-hydraulic control and electric-hydraulic proportion line traffic control two ore control; dual protection is carried out from security; reliability is higher; but also have that manpower is emergent turns to function; manpower steering torque is little, it is possible to improves the operability of navigating mate from basic and reduce manipulation strength.
The purpose of this utility model realizes by following technique measures:
Course changing control valve of the present utility model comprise be provided with first oil mouth, 2nd oil mouth, 3rd oil mouth, 4th oil mouth, 5th oil mouth, 6th oil mouth, 7th oil mouth, 8th oil mouth, 9th oil mouth, tenth oil mouth, 11 oil mouth, the valve body of the 12 oil mouth, the shuttle valve I being arranged in valve body, two-bit triplet liquid controlled reversing valve, two-bit triplet electricity proportional reversing valve I, shuttle valve II, shuttle valve III, surge valve, damping, check valve I, shuttle valve IV, 3-position 4-way liquid controlled reversing valve, damping, shuttle valve V, two-bit triplet electricity proportional reversing valve II, two-bit triplet liquid controlled reversing valve, check valve II, check valve III, oil compensating overload valve, oil compensating overload valve, shuttle valve VI, two-bit triplet liquid controlled reversing valve, damping, 2/2-way liquid controlled reversing valve, damping, 2/2-way liquid controlled reversing valve, wherein, a oil mouth of described first oil mouth and surge valve, the b oil mouth of shuttle valve I is connected, and the 2nd oil mouth is connected with the b oil mouth of check valve II, the T oil mouth of the 3rd oil mouth and oil compensating overload valve, the T oil mouth of oil compensating overload valve, the a oil mouth of check valve II, the T oil mouth of two-bit triplet liquid controlled reversing valve, the T oil mouth of 3-position 4-way liquid controlled reversing valve is connected, and the 4th oil mouth is connected with the b oil mouth of check valve III, the b oil mouth of the 5th oil mouth and 2/2-way liquid controlled reversing valve, the b oil mouth of shuttle valve VI, the P oil mouth of oil compensating overload valve, the A oil mouth of 3-position 4-way liquid controlled reversing valve is connected, and is wherein provided with damping between the b oil mouth of the 5th oil mouthful R and 2/2-way liquid controlled reversing valve, the b oil mouth of the 6th oil mouthful L and 2/2-way liquid controlled reversing valve, the a oil mouth of shuttle valve VI, the P oil mouth of oil compensating overload valve, the B oil mouth of 3-position 4-way liquid controlled reversing valve is connected, and is wherein provided with damping between the b oil mouth of the 6th oil mouth and 2/2-way liquid controlled reversing valve, the x oil mouth of the 7th oil mouth and 2/2-way liquid controlled reversing valve, the a oil mouth of 2/2-way liquid controlled reversing valve, the P oil mouth of two-bit triplet liquid controlled reversing valve is connected, the x oil mouth of the 8th oil mouth and 2/2-way liquid controlled reversing valve, the a oil mouth of 2/2-way liquid controlled reversing valve, the P oil mouth of two-bit triplet liquid controlled reversing valve is connected, and the 9th oil mouth is connected with the c oil mouth of shuttle valve I, and the tenth oil mouth is connected with the c oil mouth of shuttle valve II, and the 11 oil mouth is connected with a oil mouth of shuttle valve, a oil mouth of the 12 oil mouth and shuttle valve I, the P oil mouth of two-bit triplet electricity proportional reversing valve I, the P oil mouth of two-bit triplet electricity proportional reversing valve II is connected, the T oil mouth of two-bit triplet electricity proportional reversing valve I and the T oil mouth of two-bit triplet electricity proportional reversing valve II, the T oil mouth of two-bit triplet liquid controlled reversing valve, the T oil mouth of two-bit triplet liquid controlled reversing valve, the a oil mouth of check valve III is connected, the A oil mouth of two-bit triplet electricity proportional reversing valve I and the b oil mouth of shuttle valve III, the X oil mouth of two-bit triplet liquid controlled reversing valve is connected, and a oil mouth of shuttle valve III is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve, the c oil mouth of shuttle valve III and a oil mouth of 3-position 4-way liquid controlled reversing valve, the a oil mouth of shuttle valve IV is connected, and a oil port of 3-position 4-way liquid controlled reversing valve is provided with damping, the oily mouth b of shuttle valve II and the c oil mouth of surge valve, the P oil mouth of two-bit triplet liquid controlled reversing valve is connected, and the b oil mouth of surge valve is connected with a oil mouth of check valve I, and the b oil mouth of check valve I is connected with the P oil mouth of 3-position 4-way liquid controlled reversing valve, the b oil mouth of shuttle valve IV and the b oil mouth of 3-position 4-way liquid controlled reversing valve, the c oil mouth of shuttle valve V is connected, the b oil port of 3-position 4-way liquid controlled reversing valve is provided with damping, the c oil mouth of shuttle valve IV is connected with the X oil mouth of two-bit triplet liquid controlled reversing valve, the c oil mouth of shuttle valve VI is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve, the a oil mouth of shuttle valve V is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve, the b oil mouth of shuttle valve V and the A oil mouth of two-bit triplet electricity proportional reversing valve II, the X oil mouth of two-bit triplet liquid controlled reversing valve is connected.
The liquid controlled reversing valve of 3-position 4-way described in the utility model is hydraulic control ratio three position four-way directional control valve; Described two-bit triplet electricity proportional reversing valve I and two-bit triplet electricity proportional reversing valve II are electricity ratio reducing valve; Described surge valve is level pressure difference surge valve.
The beneficial effects of the utility model are as follows:
1, course changing control valve of the present utility model has electric ratio flow control and all-hydraulic ratio flow control dual-use function, electricity ratio flow control is preferential, when electric proportional control disabler or electric proportional control function fault, electro-hydraulic ratio flow control function works, and has two-stage safety control;
2, the flow that course changing control valve of the present utility model exports can according to the size of electric proportional control signal, and ratio exports corresponding discharge, and ratio characteristic is good, and stability of flow is not by load variable effect;
3, the flow that course changing control valve of the present utility model exports can according to the size of hydraulic control signal flow, scale amplifying flow, ratio good linearity;
4, course changing control valve of the present utility model can realize execute-in-place, long-range or telemanipulation controlling functions, and solving special environment people cannot the occasion of execute-in-place;
5, the through-flow flow of course changing control valve of the present utility model is big, and the pressure-losses is little, applied range;
6, course changing control valve of the present utility model can realize overload protection, repairing and anti-cavitation erosion function;
The advantages such as 7, course changing control valve of the present utility model has compact construction, good airproof performance, amount of leakage is little, cost is low, serviceability is good.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model course changing control valve.
Embodiment
As shown in Figure 1, course changing control valve of the present utility model comprise be provided with first oil mouthful P, 2nd oil mouthful T, 3rd oil mouthful T1, 4th oil mouthful T2, 5th oil mouthful R, 6th oil mouthful L, 7th oil mouthful R1, 8th oil mouthful L1, 9th oil mouthful P1, tenth oil mouthful LS, 11 oil mouthful LS1, the valve body of the 12 oil mouthful X, the shuttle valve I 1 being arranged in valve body, two-bit triplet liquid controlled reversing valve 2, two-bit triplet electricity proportional reversing valve I 3, shuttle valve II 4, shuttle valve III 5, surge valve 6, damping 7, check valve I 8, shuttle valve IV 9, 3-position 4-way liquid controlled reversing valve 10, damping 11, shuttle valve V 12, two-bit triplet electricity proportional reversing valve II 13, two-bit triplet liquid controlled reversing valve 14, check valve II 15, check valve III 16, oil compensating overload valve 17, oil compensating overload valve 18, shuttle valve VI 19, two-bit triplet liquid controlled reversing valve 20, damping 21, 2/2-way liquid controlled reversing valve 22, damping 23, 2/2-way liquid controlled reversing valve 24, wherein, a oil mouth of described first oil mouthful P and surge valve 6, the b oil mouth of shuttle valve I 1 is connected, and the 2nd oil mouthful T is connected with the b oil mouth of check valve II 15, the T oil mouth of the 3rd oil mouthful T1 and oil compensating overload valve 17, the T oil mouth of oil compensating overload valve 18, the a oil mouth of check valve II 15, the T oil mouth of two-bit triplet liquid controlled reversing valve 14, the T oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected, and the 4th oil mouthful T2 is connected with the b oil mouth of check valve III 16, the b oil mouth of the 5th oil mouthful R and 2/2-way liquid controlled reversing valve 24, the b oil mouth of shuttle valve VI 19, the P oil mouth of oil compensating overload valve 17, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected, and is wherein provided with the b oil mouth of damping the 23, six oil mouthful L and 2/2-way liquid controlled reversing valve 22 between the b oil mouth of the 5th oil mouthful R and 2/2-way liquid controlled reversing valve 24, the a oil mouth of shuttle valve VI 19, the P oil mouth of oil compensating overload valve 18, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected, and is wherein provided with the x oil mouth of damping the 21, seven oil mouthful R1 and 2/2-way liquid controlled reversing valve 24 between the b oil mouth of the 6th oil mouthful L and 2/2-way liquid controlled reversing valve 22, the a oil mouth of 2/2-way liquid controlled reversing valve 24, the P oil mouth of two-bit triplet liquid controlled reversing valve 2 is connected, the x oil mouth of the 8th oil mouthful L1 and 2/2-way liquid controlled reversing valve 22, the a oil mouth of 2/2-way liquid controlled reversing valve 22, the P oil mouth of two-bit triplet liquid controlled reversing valve 20 is connected, and the 9th oil mouthful P1 is connected with the c oil mouth of shuttle valve I 1, and the tenth oil mouthful LS is connected with the c oil mouth of shuttle valve II 4, and the 11 oil mouthful LS1 is connected with a oil mouth of shuttle valve 4, a oil mouth of the 12 oil mouthful X and shuttle valve I 1, the P oil mouth of two-bit triplet electricity proportional reversing valve I 3, the P oil mouth of two-bit triplet electricity proportional reversing valve II 13 is connected, the T oil mouth of two-bit triplet electricity proportional reversing valve I 3 and the T oil mouth of two-bit triplet electricity proportional reversing valve II 13, the T oil mouth of two-bit triplet liquid controlled reversing valve 2, the T oil mouth of two-bit triplet liquid controlled reversing valve 20, the a oil mouth of check valve III 16 is connected, the A oil mouth of two-bit triplet electricity proportional reversing valve I 3 and the b oil mouth of shuttle valve III 5, the X oil mouth of two-bit triplet liquid controlled reversing valve 2 is connected, and a oil mouth of shuttle valve III 5 is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve 2, the c oil mouth of shuttle valve III 5 and a oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of shuttle valve IV 9 is connected, and a oil port of 3-position 4-way liquid controlled reversing valve 10 is provided with damping 7, the oily mouth b of shuttle valve II 4 and the c oil mouth of surge valve 6, the P oil mouth of two-bit triplet liquid controlled reversing valve 14 is connected, the b oil mouth of surge valve 6 is connected with a oil mouth of check valve I 8, the b oil mouth of check valve I 8 is connected with the P oil mouth of 3-position 4-way liquid controlled reversing valve 10, the b oil mouth of shuttle valve IV 9 and the b oil mouth of 3-position 4-way liquid controlled reversing valve 10, the c oil mouth of shuttle valve V 12 is connected, the b oil port of 3-position 4-way liquid controlled reversing valve 10 is provided with damping 11, the c oil mouth of shuttle valve IV 9 is connected with the X oil mouth of two-bit triplet liquid controlled reversing valve 14, the c oil mouth of shuttle valve VI 19 is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve 14, the a oil mouth of shuttle valve V 12 is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve 20, the b oil mouth of shuttle valve V 12 and the A oil mouth of two-bit triplet electricity proportional reversing valve II 13, the X oil mouth of two-bit triplet liquid controlled reversing valve 20 is connected.
The liquid controlled reversing valve of 3-position 4-way described in the utility model 10 is hydraulic control ratio three position four-way directional control valve; Described two-bit triplet electricity proportional reversing valve I 3 and two-bit triplet electricity proportional reversing valve II 13 are electricity ratio reducing valve; Described surge valve 6 is level pressure difference surge valve.
Working process of the present utility model is as follows:
As shown in Figure 1, during the solenoid ON specific currents of two-bit triplet electricity proportional reversing valve I 3, the oily mouth of A of P oil mouth and the two-bit triplet electricity proportional reversing valve I 3 of two-bit triplet electricity proportional reversing valve I 3, 12 oil mouthful X, the a oil mouth of shuttle valve I 1, the b oil mouth of shuttle valve III 5, the c oil mouth of shuttle valve III 5, damping 7, the a oil mouth of shuttle valve IV 9, the c oil mouth of shuttle valve IV 9, the X oil mouth of two-bit triplet liquid controlled reversing valve 14, the a oil mouth of 3-position 4-way liquid controlled reversing valve 10, the X oil mouth of two-bit triplet liquid controlled reversing valve 2 is connected, and the guide oil come from the 12 oil mouthful X promotes two-bit triplet liquid controlled reversing valve 2, the commutation of two-bit triplet liquid controlled reversing valve 14 and 3-position 4-way liquid controlled reversing valve 10 commutate respectively, the A oil mouth of two-bit triplet liquid controlled reversing valve 2 and the T oil mouth of two-bit triplet liquid controlled reversing valve 2, the T oil mouth of two-bit triplet electricity proportional reversing valve I 3 and the T oil mouth of two-bit triplet electricity proportional reversing valve II 13, the T oil mouth of two-bit triplet liquid controlled reversing valve 20, the a oil mouth of check valve III 16, the b oil mouth of check valve III 16, 4th oil mouthful T2 is connected, the P oil mouth of two-bit triplet liquid controlled reversing valve 14, the A oil mouth of two-bit triplet liquid controlled reversing valve 14 is connected, and the A oil mouth of the P oil mouth of 3-position 4-way liquid controlled reversing valve 10 and 3-position 4-way liquid controlled reversing valve 10, the b oil mouth of the 5th oil mouthful R and 2/2-way liquid controlled reversing valve 24, the b oil mouth of shuttle valve VI 19, the P oil mouth of oil compensating overload valve 17, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10, the b oil mouth of check valve I 8 is connected, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10 and the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, the T oil mouth of the 3rd oil mouthful T1 and oil compensating overload valve 17, the T oil mouth of oil compensating overload valve 18, 3rd oil mouthful T1, the a oil mouth of check valve II 15, the T oil mouth of two-bit triplet liquid controlled reversing valve 14, the b oil mouth of the 6th oil mouthful L and 2/2-way liquid controlled reversing valve 22, the a oil mouth of shuttle valve VI 19, the P oil mouth of oil compensating overload valve 18 is connected, and namely enters You Yuan from a first oil mouthful P, by a of surge valve 6 oil mouth, the b oil mouth of surge valve 6, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10 to the 5th oil mouthful R, by the b of shuttle valve I 1 oil mouth, the c oil mouth of shuttle valve I 1 is to the 9th oil mouthful P1, and oil return is by the 6th oil mouthful L, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10, the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of check valve II 15, the b oil mouth of check valve II 15 is to the 2nd oil mouthful T, then oil return box, and meanwhile, load pressure is by the 5th oil mouthful R, the b oil mouth of shuttle valve VI 19, the c oil mouth of shuttle valve VI 19, the A oil mouth of two-bit triplet liquid controlled reversing valve 14, the P oil mouth of two-bit triplet liquid controlled reversing valve 14 feeds back to the c oil mouth of surge valve 6, the c oil mouth with shuttle valve II 4 that the b oil mouth of shuttle valve II 4, the b oil mouth of shuttle valve II 4 and a oil mouth pressure are bigger, tenth oil mouthful LS is connected, with reason, when the solenoid ON specific currents of two-bit triplet electricity proportional reversing valve II 13, two-bit triplet liquid controlled reversing valve 2, the commutation of two-bit triplet liquid controlled reversing valve 14 and 3-position 4-way liquid controlled reversing valve 10 commutate respectively, You Yuan is entered from a first oil mouthful P, by a of surge valve 6 oil mouth, the b oil mouth of surge valve 6, the P oil mouth of 3-position 4-way liquid controlled reversing valve 10, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10 is to the 6th oil mouthful L, oil return is by the 5th oil mouthful R, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10, the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of check valve II 15, the b oil mouth of check valve II 15 is to the 2nd oil mouthful T, then oil return box, simultaneously, load pressure is by the 6th oil mouthful L, the a oil mouth of shuttle valve VI 19, the c oil mouth of shuttle valve VI 19, the A oil mouth of two-bit triplet liquid controlled reversing valve 14, the P oil mouth of two-bit triplet liquid controlled reversing valve 14 feeds back to the c oil mouth of surge valve 6.
When providing course changing control hydraulic efficiency oil to the 7th oil mouthful R1, the x oil mouth of the 7th oil mouthful R1 and 2/2-way liquid controlled reversing valve 24, the P oil mouth of two-bit triplet liquid controlled reversing valve 2, the A oil mouth of two-bit triplet liquid controlled reversing valve 2, the a oil mouth of shuttle valve III 5, the c oil mouth of shuttle valve III 5, the a oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of shuttle valve IV 9, the c oil mouth of shuttle valve IV 9, the X oil mouth of two-bit triplet liquid controlled reversing valve 14 is connected, 2/2-way liquid controlled reversing valve 24, two-bit triplet liquid controlled reversing valve 14 and 3-position 4-way liquid controlled reversing valve 10 commutate respectively, the a oil mouth of 2/2-way liquid controlled reversing valve 24 is connected with the b oil mouth of 2/2-way liquid controlled reversing valve 24, the P oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected with the A oil mouth of 3-position 4-way liquid controlled reversing valve 10, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected with the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, namely You Yuan is entered from a first oil mouthful P, by a of surge valve 6 oil mouth, the b oil mouth of surge valve 6, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10 is to the 5th oil mouthful R, and meanwhile, the hydraulic control oil of the 7th oil mouthful R1 is by a oil mouth of 2/2-way liquid controlled reversing valve 24, the b oil mouth of 2/2-way liquid controlled reversing valve 24, damping 23, also enters the 5th oil mouthful R, and oil return is by the 6th oil mouthful L, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10, the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of check valve II 15, the b oil mouth of check valve II 15 is to the 2nd oil mouthful T, then oil return box, and meanwhile, load pressure is by the 5th oil mouthful R, the b oil mouth of shuttle valve VI 19, the c oil mouth of shuttle valve VI 19, the A oil mouth of two-bit triplet liquid controlled reversing valve 14, the P oil mouth of two-bit triplet liquid controlled reversing valve 14 feeds back to the c oil mouth of surge valve 6, with reason, when providing course changing control hydraulic efficiency oil to the 8th oil mouthful L1, the x oil mouth of the 8th oil mouthful L1 and 2/2-way liquid controlled reversing valve 22, the P oil mouth of two-bit triplet liquid controlled reversing valve 20, the A oil mouth of two-bit triplet liquid controlled reversing valve 20, the a oil mouth of shuttle valve V 12, the c oil mouth of shuttle valve V 12, the b oil mouth of damping 11 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of shuttle valve IV 9, the c oil mouth of shuttle valve IV 9, the X oil mouth of two-bit triplet liquid controlled reversing valve 14 is connected, 2/2-way liquid controlled reversing valve 22, two-bit triplet liquid controlled reversing valve 14 and 3-position 4-way liquid controlled reversing valve 10 commutate respectively, the a oil mouth of 2/2-way liquid controlled reversing valve 22 is connected with the b oil mouth of 2/2-way liquid controlled reversing valve 24, the P oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected with the B oil mouth of 3-position 4-way liquid controlled reversing valve 10, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10 is connected with the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, namely You Yuan is entered from a first oil mouthful P, by a of surge valve 6 oil mouth, the b oil mouth of surge valve 6, the B oil mouth of 3-position 4-way liquid controlled reversing valve 10 is to the 6th oil mouthful L, and meanwhile, the hydraulic control oil of the 8th oil mouthful L1 is by a oil mouth of 2/2-way liquid controlled reversing valve 22, the b oil mouth of 2/2-way liquid controlled reversing valve 22, damping 21, also enters the 6th oil mouthful L, and oil return is by the 5th oil mouthful R, the A oil mouth of 3-position 4-way liquid controlled reversing valve 10, the T oil mouth of 3-position 4-way liquid controlled reversing valve 10, the a oil mouth of check valve II 15, the b oil mouth of check valve II 15 is to the 2nd oil mouthful T, then oil return box, and meanwhile, load pressure is by the 6th oil mouthful L, the a oil mouth of shuttle valve VI 19, the c oil mouth of shuttle valve VI 19, the A oil mouth of two-bit triplet liquid controlled reversing valve 14, the P oil mouth of two-bit triplet liquid controlled reversing valve 14 feeds back to the c oil mouth of surge valve 6.
Claims (4)
1. a course changing control valve, it is characterised in that: described course changing control valve comprise be provided with first oil mouth (P), 2nd oil mouth (T), 3rd oil mouth (T1), 4th oil mouth (T2), 5th oil mouth (R), 6th oil mouth (L), 7th oil mouth (R1), 8th oil mouth (L1), 9th oil mouth (P1), tenth oil mouth (LS), 11 oil mouth (LS1), the valve body of the 12 oil mouth (X), the shuttle valve I (1) being arranged in valve body, two-bit triplet liquid controlled reversing valve (2), two-bit triplet electricity proportional reversing valve I (3), shuttle valve II (4), shuttle valve III (5), surge valve (6), damping (7), check valve I (8), shuttle valve IV (9), 3-position 4-way liquid controlled reversing valve (10), damping (11), shuttle valve V (12), two-bit triplet electricity proportional reversing valve II (13), two-bit triplet liquid controlled reversing valve (14), check valve II (15), check valve III (16), oil compensating overload valve (17), oil compensating overload valve (18), shuttle valve VI (19), two-bit triplet liquid controlled reversing valve (20), damping (21), 2/2-way liquid controlled reversing valve (22), damping (23), 2/2-way liquid controlled reversing valve (24), wherein, described first oil mouth (P) mouth oily with a of surge valve (6), the b oil mouth of shuttle valve I (1) is connected, and the 2nd oil mouth (T) is connected with the b oil mouth of check valve II (15), the T oil mouth of the 3rd oil mouth (T1) and oil compensating overload valve (17), the T oil mouth of oil compensating overload valve (18), the a oil mouth of check valve II (15), the T oil mouth of two-bit triplet liquid controlled reversing valve (14), the T oil mouth of 3-position 4-way liquid controlled reversing valve (10) is connected, and the 4th oil mouth (T2) is connected with the b oil mouth of check valve III (16), the b oil mouth of the 5th oil mouth (R) and 2/2-way liquid controlled reversing valve (24), the b oil mouth of shuttle valve VI (19), the P oil mouth of oil compensating overload valve (17), the A oil mouth of 3-position 4-way liquid controlled reversing valve (10) is connected, and is wherein provided with damping (23) between the b oil mouth of the 5th oil mouthful R and 2/2-way liquid controlled reversing valve (24), the b oil mouth of the 6th oil mouth (L) and 2/2-way liquid controlled reversing valve (22), the a oil mouth of shuttle valve VI (19), the P oil mouth of oil compensating overload valve (18), the B oil mouth of 3-position 4-way liquid controlled reversing valve (10) is connected, and is wherein provided with damping (21) between the b oil mouth of the 6th oil mouth (L) and 2/2-way liquid controlled reversing valve (22), the x oil mouth of the 7th oil mouth (R1) and 2/2-way liquid controlled reversing valve (24), the a oil mouth of 2/2-way liquid controlled reversing valve (24), the P oil mouth of two-bit triplet liquid controlled reversing valve (2) is connected, the x oil mouth of the 8th oil mouth (L1) and 2/2-way liquid controlled reversing valve (22), the a oil mouth of 2/2-way liquid controlled reversing valve (22), the P oil mouth of two-bit triplet liquid controlled reversing valve (20) is connected, 9th oil mouth (P1) is connected with the c oil mouth of shuttle valve I (1), tenth oil mouth (LS) is connected with the c oil mouth of shuttle valve II (4), 11 oil mouth (LS1) is connected with a oil mouth of shuttle valve (4), a oil mouth of the 12 oil mouth (X) and shuttle valve I (1), the P oil mouth of two-bit triplet electricity proportional reversing valve I (3), the P oil mouth of two-bit triplet electricity proportional reversing valve II (13) is connected, the T oil mouth of two-bit triplet electricity proportional reversing valve I (3) and the T oil mouth of two-bit triplet electricity proportional reversing valve II (13), the T oil mouth of two-bit triplet liquid controlled reversing valve (2), the T oil mouth of two-bit triplet liquid controlled reversing valve (20), the a oil mouth of check valve III (16) is connected, the A oil mouth of two-bit triplet electricity proportional reversing valve I (3) and the b oil mouth of shuttle valve III (5), the X oil mouth of two-bit triplet liquid controlled reversing valve (2) is connected, and a oil mouth of shuttle valve III (5) is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve (2), the c oil mouth of shuttle valve III (5) and a oil mouth of 3-position 4-way liquid controlled reversing valve (10), the a oil mouth of shuttle valve IV (9) is connected, and a oil port of 3-position 4-way liquid controlled reversing valve (10) is provided with damping (7), the oily mouth b of shuttle valve II (4) and the c oil mouth of surge valve (6), the P oil mouth of two-bit triplet liquid controlled reversing valve (14) is connected, the b oil mouth of surge valve (6) is connected with a oil mouth of check valve I (8), the b oil mouth of check valve I (8) is connected with the P oil mouth of 3-position 4-way liquid controlled reversing valve (10), the b oil mouth of shuttle valve IV (9) and the b oil mouth of 3-position 4-way liquid controlled reversing valve (10), the c oil mouth of shuttle valve V (12) is connected, the b oil port of 3-position 4-way liquid controlled reversing valve (10) is provided with damping (11), the c oil mouth of shuttle valve IV (9) is connected with the X oil mouth of two-bit triplet liquid controlled reversing valve (14), the c oil mouth of shuttle valve VI (19) is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve (14), the a oil mouth of shuttle valve V (12) is connected with the A oil mouth of two-bit triplet liquid controlled reversing valve (20), the b oil mouth of shuttle valve V (12) and the A oil mouth of two-bit triplet electricity proportional reversing valve II (13), the X oil mouth of two-bit triplet liquid controlled reversing valve (20) is connected.
2. course changing control valve according to claim 1, it is characterised in that: described 3-position 4-way liquid controlled reversing valve (10) is hydraulic control ratio three position four-way directional control valve.
3. course changing control valve according to claim 1, it is characterised in that: described two-bit triplet electricity proportional reversing valve I (3) and two-bit triplet electricity proportional reversing valve II (13) are electricity ratio reducing valve.
4. course changing control valve according to claim 1, it is characterised in that: described surge valve (6) is level pressure difference surge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062775.6U CN205315377U (en) | 2016-01-22 | 2016-01-22 | Steering control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062775.6U CN205315377U (en) | 2016-01-22 | 2016-01-22 | Steering control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315377U true CN205315377U (en) | 2016-06-15 |
Family
ID=56205492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620062775.6U Withdrawn - After Issue CN205315377U (en) | 2016-01-22 | 2016-01-22 | Steering control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485082A (en) * | 2016-01-22 | 2016-04-13 | 郑州宇通重工有限公司 | Steering control valve |
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2016
- 2016-01-22 CN CN201620062775.6U patent/CN205315377U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485082A (en) * | 2016-01-22 | 2016-04-13 | 郑州宇通重工有限公司 | Steering control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160615 Effective date of abandoning: 20170616 |