CN204661182U - Bilateral side crane twin-tub hydraulic control system with adjustable amplitude - Google Patents
Bilateral side crane twin-tub hydraulic control system with adjustable amplitude Download PDFInfo
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- CN204661182U CN204661182U CN201520118835.7U CN201520118835U CN204661182U CN 204661182 U CN204661182 U CN 204661182U CN 201520118835 U CN201520118835 U CN 201520118835U CN 204661182 U CN204661182 U CN 204661182U
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Abstract
The utility model discloses a kind of bilateral side crane twin-tub hydraulic control system with adjustable amplitude, comprise luffing and control connection (1), shuttle valve (2), Bidirectional balanced valve (3), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) and transfer valve (5), luffing is controlled connection (1) and is connected with Bidirectional balanced valve (3) by shuttle valve (2), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) is all connected with Bidirectional balanced valve (3), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) is connected with shuttle valve (2) by transfer valve (5).Beneficial effect is: can ensure that twin-tub is exerted oneself simultaneously, and coordination.
Description
Technical field
The utility model relates to a kind of hydraulic control system, is specifically related to a kind of bilateral side crane twin-tub hydraulic control system with adjustable amplitude.
Background technology
Bilateral side crane is a kind of container transshipment device, has the function of bilateral container handling, bilateral stacking and transport.The bilateral handling of bilateral side crane, bilateral stacking rely on luffing mechanism, and luffing mechanism is made up of the swing arm of centre and the amplitude oil cylinder of both sides.Bilateral side crane compact conformation, the oad of oil cylinder and the arm of force of oil cylinder are restricted, and during single cylinder-actuated, side crane load-carrying ability is not enough, cannot meet specified demand of hanging year operating mode.In order to improve the load-carrying ability of side crane, need twin-tub to drive swing arm simultaneously.Based on the pattern of bilateral side crane luffing mechanism, in order to ensure that twin-tub is exerted oneself simultaneously, and coordination, now need a kind of hydraulic control system with adjustable amplitude to control the bilateral action of bilateral side crane.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of bilateral side crane twin-tub hydraulic control system with adjustable amplitude, and twin-tub is exerted oneself simultaneously, and coordination.
To achieve these goals, the technical solution adopted in the utility model is: a kind of bilateral side crane twin-tub hydraulic control system with adjustable amplitude, comprise luffing and control connection, shuttle valve, Bidirectional balanced valve, first hydraulic control one-way valve, second hydraulic control one-way valve, 3rd hydraulic control one-way valve, 4th hydraulic control one-way valve and transfer valve, luffing control UNICOM crosses shuttle valve and is connected with Bidirectional balanced valve, first hydraulic control one-way valve, second hydraulic control one-way valve, 3rd hydraulic control one-way valve, 4th hydraulic control one-way valve is all connected with Bidirectional balanced valve, first hydraulic control one-way valve, second hydraulic control one-way valve, 3rd hydraulic control one-way valve, 4th hydraulic control one-way valve is connected with shuttle valve by transfer valve.
Further, described luffing controls connection and comprises control connection pressure oil port, control connection return opening, controls connection first actuator port, control connection second actuator port and meta return opening, described shuttle valve comprises shuttle valve first actuator port, shuttle valve second actuator port and shuttle valve control port, described Bidirectional balanced valve comprises the first check valve, the first balance cock, the second check valve, the second balance cock, balance cock first actuator port, balance cock second actuator port, balance cock the 3rd actuator port and balance cock the 4th actuator port, the first described hydraulic control one-way valve comprises the first hydraulic control one-way valve first actuator port, the first hydraulic control one-way valve second actuator port, the first hydraulic control one-way valve control port and the first hydraulic control one-way valve drain tap, the second described hydraulic control one-way valve comprises the second hydraulic control one-way valve first actuator port, the second hydraulic control one-way valve second actuator port, the second hydraulic control one-way valve control port and the second hydraulic control one-way valve drain tap, the 3rd described hydraulic control one-way valve comprises the 3rd hydraulic control one-way valve first actuator port, the 3rd hydraulic control one-way valve second actuator port, the 3rd hydraulic control one-way valve control port and the 3rd hydraulic control one-way valve drain tap, the 4th described hydraulic control one-way valve comprises the 4th hydraulic control one-way valve first actuator port, the 4th hydraulic control one-way valve second actuator port, the 4th hydraulic control one-way valve control port and the 4th hydraulic control one-way valve drain tap, described transfer valve comprises transfer valve first actuator port, transfer valve second actuator port and transfer valve return opening, control connection pressure oil port to be communicated with chargine line, control connection return opening to be communicated with fuel tank, control connection first actuator port to be communicated with shuttle valve first actuator port, control connection second actuator port to be communicated with shuttle valve second actuator port, shuttle valve first actuator port is communicated with balance cock first actuator port, shuttle valve second actuator port is communicated with balance cock second actuator port, shuttle valve control port is communicated with transfer valve first actuator port, balance cock the 3rd actuator port by two articles of branch roads respectively with the first hydraulic control one-way valve first actuator port, 3rd hydraulic control one-way valve first actuator port connects, balance cock the 4th actuator port by two articles of branch roads respectively with the second hydraulic control one-way valve first actuator port, 4th hydraulic control one-way valve first actuator port connects, first hydraulic control one-way valve, second hydraulic control one-way valve is fixedly connected on the first derricking cylinder, first hydraulic control one-way valve second actuator port, second hydraulic control one-way valve second actuator port is communicated with loculus with the large chamber of the first derricking cylinder respectively, 3rd hydraulic control one-way valve, 4th hydraulic control one-way valve is fixedly connected on the second derricking cylinder, 3rd hydraulic control one-way valve second actuator port, 4th hydraulic control one-way valve second actuator port is communicated with large chamber with the loculus of the second derricking cylinder respectively, first hydraulic control one-way valve drain tap, second hydraulic control one-way valve drain tap, 3rd hydraulic control one-way valve drain tap, 4th hydraulic control one-way valve drain tap connects fuel tank, first hydraulic control one-way valve control port, second hydraulic control one-way valve control port, 3rd hydraulic control one-way valve control port, 4th hydraulic control one-way valve control port is communicated with transfer valve second actuator port.
The beneficial effects of the utility model are: 1. pass through the first hydraulic control one-way valve with the 3rd hydraulic control one-way valve by parallel with the loculus of the second derricking cylinder for the large chamber of the first derricking cylinder, with the 4th hydraulic control one-way valve, the loculus of the first derricking cylinder is in parallel with the large chamber of the second derricking cylinder by the second hydraulic control one-way valve, increase the active area of oil cylinder, improve the power-handling capability of oil cylinder.
2., by the pressure signal of shuttle valve transmission system, controlled the pressure of the first hydraulic control one-way valve, the second hydraulic control one-way valve, the 3rd hydraulic control one-way valve, the 4th hydraulic control one-way valve control port by transfer valve.When transfer valve commutates, transfer valve first actuator port is communicated with transfer valve second actuator port, and pressure signal introduces hydraulic control one-way valve, opens hydraulic control one-way valve; When transfer valve return, transfer valve first actuator port and transfer valve second actuator port cut off, hydraulic control one-way valve is controlled mouth pressure signal and be introduced separately into fuel tank, the main spill pressure of system can be eliminated affect hydraulic control one-way valve, prevent opening by mistake of hydraulic control one-way valve from opening, ensure hydraulic control one-way valve secure ratcs.
3. the external control check valve that leaks directly is connected with oil cylinder, and when oil pipe burst, loop wheel machine luffing mechanism can actv. locking.
4. when luffing mechanism swings to opposite side from side, load is negative sense load by forward load transfer, and the external power output of twin-tub has thrust to convert pulling force to, and by arranging Bidirectional balanced valve, actv. ensure that the balance play that arm swings.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model;
Structure principle chart of the present utility model when Fig. 2 is transfer valve employing hydraulic control control;
In figure: 1, luffing controls to join, P, control connection pressure oil port, T, control connection return opening, A, control connection first actuator port, B, control connection second actuator port;
2, shuttle valve, V1, shuttle valve first actuator port, V2, shuttle valve second actuator port, C, shuttle valve control port;
3, Bidirectional balanced valve, 3.1-1, the first check valve, 3.2-1, the first balance cock, 3.1-2, the second check valve, 3.2-2, the second balance cock, V3, balance cock first actuator port, V4, balance cock second actuator port, C1, balance cock the 3rd actuator port, C2, balance cock the 4th actuator port;
4-1, the first hydraulic control one-way valve, A1, the first hydraulic control one-way valve first actuator port, B1, the first hydraulic control one-way valve second actuator port, X1, the first hydraulic control one-way valve control port, Y1, the first hydraulic control one-way valve drain tap;
4-2, the second hydraulic control one-way valve, A2, the second hydraulic control one-way valve first actuator port, B2, the second hydraulic control one-way valve second actuator port, X2, the second hydraulic control one-way valve control port, Y2, the second hydraulic control one-way valve drain tap;
4-3, the 3rd hydraulic control one-way valve, A3, the 3rd hydraulic control one-way valve first actuator port, B3, the 3rd hydraulic control one-way valve second actuator port, X3, the 3rd hydraulic control one-way valve control port, Y3, the 3rd hydraulic control one-way valve drain tap;
4-4, the 4th hydraulic control one-way valve, A4, the 4th hydraulic control one-way valve first actuator port, B4, the 4th hydraulic control one-way valve second actuator port, X4, the 4th hydraulic control one-way valve control port, Y4, the 4th hydraulic control one-way valve drain tap;
5, transfer valve, D1, transfer valve first actuator port, D2, transfer valve second actuator port, T1, transfer valve return opening;
6-1, the first derricking cylinder; 6-2, the second derricking cylinder; 7, swing arm.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, this bilateral side crane twin-tub hydraulic control system with adjustable amplitude, comprise luffing and control connection 1, shuttle valve 2, Bidirectional balanced valve 3, first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4 and transfer valve 5, luffing is controlled connection 1 and is connected with Bidirectional balanced valve 3 by shuttle valve 2, first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4 is all connected with Bidirectional balanced valve 3, first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4 is connected with shuttle valve 2 by transfer valve 5.
Luffing controls connection 1 and comprises control connection pressure oil port P, controls connection oil return inlet T, controls connection first actuator port A, control connection second actuator port B and meta return opening;
Luffing controls connection 1 for switching pressure oil direction, realize the control to oil cylinder expanding-contracting action, luffing controls connection 1 and has the first working position, the second working position and the 3rd working position, luffing controls connection 1 when the first working position, control connection pressure oil port P, control connection oil return inlet T, control connection first actuator port A, control connection second actuator port B and be not all communicated with each other, by controlling pressure oil that connection pressure oil port P enters by meta return opening oil sump tank; Luffing controls connection 1 when the second working position, control connection pressure oil port P to be communicated with control connection first actuator port A, control connection oil return inlet T to be communicated with control connection second actuator port B, when luffing controls connection 1 the 3rd working position, control connection pressure oil port P to be communicated with control connection second actuator port B, control connection oil return inlet T and be communicated with control connection first actuator port A.
Shuttle valve 2 comprises shuttle valve first actuator port V1, shuttle valve second actuator port V2 and shuttle valve control port C;
Bidirectional balanced valve 3 is for controlling the steady swing of luffing mechanism, prevent swing arm because of negative load stall whereabouts, Bidirectional balanced valve 3 comprises the first check valve 3.1-1, the first balance cock 3.2-1, the second check valve 3.1-2, the second balance cock 3.2-2, balance cock first actuator port V3, balance cock second actuator port V4, balance cock the 3rd actuator port C1 and balance cock the 4th actuator port C2;
Hydraulic control one-way valve is fixedly connected on oil cylinder, prevent oil cylinder because of pipelines from bursting stall fall, the first hydraulic control one-way valve 4-1 comprises the first hydraulic control one-way valve first actuator port A1, the first hydraulic control one-way valve second actuator port B1, the first hydraulic control one-way valve control port X1 and the first hydraulic control one-way valve drain tap Y1;
The second described hydraulic control one-way valve 4-2 comprises the second hydraulic control one-way valve first actuator port A2, the second hydraulic control one-way valve second actuator port B2, the second hydraulic control one-way valve control port X2 and the second hydraulic control one-way valve drain tap Y2;
The 3rd described hydraulic control one-way valve 4-3 comprises the 3rd hydraulic control one-way valve first actuator port A3, the 3rd hydraulic control one-way valve second actuator port B3, the 3rd hydraulic control one-way valve control port X3 and the 3rd hydraulic control one-way valve drain tap Y3;
The 4th described hydraulic control one-way valve 4-4 comprises the 4th hydraulic control one-way valve first actuator port A4, the 4th hydraulic control one-way valve second actuator port B4, the 4th hydraulic control one-way valve control port X4 and the 4th hydraulic control one-way valve drain tap Y4;
Transfer valve 5 controls the pressure signal of mouth for controlling four hydraulic control one-way valves, transfer valve 5 comprises transfer valve first actuator port D1, transfer valve second actuator port D2 and transfer valve oil return inlet T 1; As shown in Figure 2, transfer valve 5 also can be hydraulic control control.
Control connection pressure oil port P to be communicated with chargine line, control connection oil return inlet T to be communicated with fuel tank, control connection first actuator port A to be communicated with shuttle valve first actuator port V1, control connection second actuator port B to be communicated with shuttle valve second actuator port V2, shuttle valve first actuator port V1 is communicated with balance cock first actuator port V3, shuttle valve second actuator port V2 is communicated with balance cock second actuator port V4, shuttle valve control port C is communicated with transfer valve first actuator port D1, balance cock the 3rd actuator port C1 by two articles of branch roads respectively with the first hydraulic control one-way valve first actuator port A1, 3rd hydraulic control one-way valve first actuator port A3 connects, balance cock the 4th actuator port C2 by two articles of branch roads respectively with the second hydraulic control one-way valve first actuator port A2, 4th hydraulic control one-way valve first actuator port A4 connects, first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2 is fixedly connected on the first derricking cylinder 6-1, first hydraulic control one-way valve second actuator port B1, second hydraulic control one-way valve second actuator port B2 is communicated with loculus with the large chamber of the first derricking cylinder 6-1 respectively, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4 is fixedly connected on the second derricking cylinder 6-2, 3rd hydraulic control one-way valve second actuator port B3, 4th hydraulic control one-way valve second actuator port B4 is communicated with large chamber with the loculus of the second derricking cylinder 6-2 respectively, first hydraulic control one-way valve drain tap Y1, second hydraulic control one-way valve drain tap Y2, 3rd hydraulic control one-way valve drain tap Y3, 4th hydraulic control one-way valve drain tap Y4 connects fuel tank, first hydraulic control one-way valve control port X1, second hydraulic control one-way valve control port X2, 3rd hydraulic control one-way valve control port X3, 4th hydraulic control one-way valve control port X4 is communicated with transfer valve second actuator port D2.
Shuttle valve 2 is for transmission of pressure oil, the first hydraulic control one-way valve 4-1 is controlled by transfer valve 5, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, the opening and closing of the 4th hydraulic control one-way valve 4-4, the pressure signal of system introduces transfer valve first actuator port D1 by shuttle valve control port C, when transfer valve 5 commutates, transfer valve first actuator port D1 is communicated with transfer valve second actuator port D2, pressure signal introduces the first hydraulic control one-way valve control port X1, second hydraulic control one-way valve control port X2, 3rd hydraulic control one-way valve control port X3, 4th hydraulic control one-way valve control port X4, open four hydraulic control one-way valves, when transfer valve 5 return, transfer valve first actuator port D1 and transfer valve second actuator port D2 cuts off, four hydraulic control one-way valves are controlled mouth pressure signal and is introduced separately into fuel tank, the main spill pressure of system can be eliminated affect four hydraulic control one-way valves, prevent opening by mistake of four hydraulic control one-way valves from opening, ensure four hydraulic control one-way valve secure ratcses.
Utility model works principle, particular content is as follows:
When operation luffing controls connection 1 to the second working position, control connection pressure oil port P to be communicated with control connection first actuator port A, fluid flows into transfer valve first actuator port D1 through shuttle valve control port C, now transfer valve 5 obtains signal right position work, transfer valve first actuator port D1 is communicated with transfer valve second actuator port D2, pressure oil is introduced into the first hydraulic control one-way valve control port X1, second hydraulic control one-way valve control port X2, 3rd hydraulic control one-way valve control port X3, 4th hydraulic control one-way valve control port X4, open the first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4, simultaneously, pressure oil flows through the first check valve 3.1-1 of Bidirectional balanced valve 3 by shuttle valve first actuator port V1, by the first hydraulic control one-way valve 4-1, 3rd hydraulic control one-way valve 4-3, then from the first hydraulic control one-way valve second actuator port B1, 3rd hydraulic control one-way valve second actuator port B3 flows into the large chamber of the first derricking cylinder 6-1 respectively, the loculus of the second derricking cylinder 6-2,
Promote arm clockwise oscillation, now the fluid in the first derricking cylinder 6-1 loculus and the second large chamber of derricking cylinder 6-2 flows out from the second hydraulic control one-way valve second actuator port B2, the 4th hydraulic control one-way valve second actuator port B4 respectively, balance cock the 4th actuator port C2 is flowed into respectively through the second hydraulic control one-way valve 4-2, the 4th hydraulic control one-way valve 4-4, flowed out from Bidirectional balanced valve first working hole V4 by the second balance cock 3.2-2, finally by control connection second actuator port B, flow into fuel tank from control connection oil return inlet T.When swing arm 7 does not arrive midway location, load is forward load, and twin-tub power output is thrust, promotes load movement.When swing arm 7 crosses midway location, load is negative sense load, and twin-tub power output is pulling force, stops load stall to be fallen.
When operation luffing controls connection 1 to the 3rd working position, control connection pressure oil port P to be communicated with control connection second actuator port B, fluid flows into transfer valve first actuator port D1 through shuttle valve control port C, now transfer valve 5 obtains signal right position work, transfer valve first actuator port D1 is communicated with transfer valve second actuator port D2, pressure oil is introduced into the first hydraulic control one-way valve control port X1, second hydraulic control one-way valve control port X2, 3rd hydraulic control one-way valve control port X3, 4th hydraulic control one-way valve control port X4, open the first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th hydraulic control one-way valve 4-4, simultaneously, pressure oil flows through the second check valve 3.1-2 of Bidirectional balanced valve 3 by shuttle valve second actuator port V2, by the second hydraulic control one-way valve 4-2, 4th hydraulic control one-way valve 4-4, then from the second hydraulic control one-way valve second actuator port B2, 4th hydraulic control one-way valve second actuator port B4 flows into the loculus of the first derricking cylinder 6-1, the large chamber of the second derricking cylinder 6-2,
Promote arm counter-clockwise swing, now the fluid of the first large chamber of derricking cylinder 6-1 and the second derricking cylinder 6-2 loculus is respectively from the first hydraulic control one-way valve second actuator port B1,3rd hydraulic control one-way valve second actuator port B3 flows out, balance cock the 3rd actuator port C1 is flowed into respectively through the first hydraulic control one-way valve 4-1, the 3rd hydraulic control one-way valve 4-3, flowed out from balance cock first actuator port V3 by the second balance cock 3.2-1, finally by control connection first actuator port A, flow into fuel tank from control connection oil return inlet T.When swing arm 7 does not arrive midway location, load is forward load, and twin-tub power output is thrust, promotes load movement.When swing arm 7 crosses midway location, load is negative sense load, and twin-tub power output is pulling force, stops load stall to be fallen.
When inoperation luffing controls connection 1, when luffing controls connection 1 to the first working position, by controlling connection pressure oil port P oil-feed, fluid will by meta return opening oil sump tank, system unloaded.Now transfer valve 5 is in initial position, transfer valve first actuator port D1 and transfer valve second actuator port D2 disconnects, first hydraulic control one-way valve control port X1, second hydraulic control one-way valve control port X2, 3rd hydraulic control one-way valve control port X3, the fluid of the 4th hydraulic control one-way valve control port X4 is by transfer valve 5 oil sump tank separately, the main spill pressure of elimination system affects hydraulic control one-way valve, prevent the first hydraulic control one-way valve 4-1, second hydraulic control one-way valve 4-2, 3rd hydraulic control one-way valve 4-3, 4th opening by mistake of hydraulic control one-way valve 4-4 is opened, ensure hydraulic control one-way valve secure ratcs.First derricking cylinder 6-1 and the second derricking cylinder 6-2 completes locking under the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the 3rd hydraulic control one-way valve 4-3, the 4th hydraulic control one-way valve 4-4, transfer valve 5, Bidirectional balanced valve 3 and luffing control the effect of connection 1.
Claims (2)
1. a bilateral side crane twin-tub hydraulic control system with adjustable amplitude, comprise luffing and control connection (1), shuttle valve (2), Bidirectional balanced valve (3), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) and transfer valve (5), it is characterized in that, luffing is controlled connection (1) and is connected with Bidirectional balanced valve (3) by shuttle valve (2), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) is all connected with Bidirectional balanced valve (3), first hydraulic control one-way valve (4-1), second hydraulic control one-way valve (4-2), 3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) is connected with shuttle valve (2) by transfer valve (5).
2. a kind of bilateral side crane twin-tub hydraulic control system with adjustable amplitude according to claim 1, is characterized in that,
Described luffing controls to join (1) and comprises control connection pressure oil port (P), control connection return opening (T), control connection first actuator port (A), control connection second actuator port (B) and meta return opening;
Described shuttle valve (2) comprises shuttle valve first actuator port (V1), shuttle valve second actuator port (V2) and shuttle valve control port (C);
Described Bidirectional balanced valve (3) comprises the first check valve (3.1-1), the first balance cock (3.2-1), the second check valve (3.1-2), the second balance cock (3.2-2), balance cock first actuator port (V3), balance cock second actuator port (V4), balance cock the 3rd actuator port (C1) and balance cock the 4th actuator port (C2);
Described the first hydraulic control one-way valve (4-1) comprises the first hydraulic control one-way valve first actuator port (A1), the first hydraulic control one-way valve second actuator port (B1), the first hydraulic control one-way valve control port (X1) and the first hydraulic control one-way valve drain tap (Y1);
Described the second hydraulic control one-way valve (4-2) comprises the second hydraulic control one-way valve first actuator port (A2), the second hydraulic control one-way valve second actuator port (B2), the second hydraulic control one-way valve control port (X2) and the second hydraulic control one-way valve drain tap (Y2);
The 3rd described hydraulic control one-way valve (4-3) comprises the 3rd hydraulic control one-way valve first actuator port (A3), the 3rd hydraulic control one-way valve second actuator port (B3), the 3rd hydraulic control one-way valve control port (X3) and the 3rd hydraulic control one-way valve drain tap (Y3);
The 4th described hydraulic control one-way valve (4-4) comprises the 4th hydraulic control one-way valve first actuator port (A4), the 4th hydraulic control one-way valve second actuator port (B4), the 4th hydraulic control one-way valve control port (X4) and the 4th hydraulic control one-way valve drain tap (Y4);
Described transfer valve (5) comprises transfer valve first actuator port (D1), transfer valve second actuator port (D2) and transfer valve return opening (T1);
Control connection pressure oil port (P) to be communicated with chargine line, control connection return opening (T) to be communicated with fuel tank, control connection first actuator port (A) to be communicated with shuttle valve first actuator port (V1), control connection second actuator port (B) and be communicated with shuttle valve second actuator port (V2)
Shuttle valve first actuator port (V1) is communicated with balance cock first actuator port (V3), and shuttle valve second actuator port (V2) is communicated with balance cock second actuator port (V4), and shuttle valve control port (C) is communicated with transfer valve first actuator port (D1),
Balance cock the 3rd actuator port (C1) by two articles of branch roads respectively with the first hydraulic control one-way valve first actuator port (A1), 3rd hydraulic control one-way valve first actuator port (A3) connects, balance cock the 4th actuator port (C2) by two articles of branch roads respectively with the second hydraulic control one-way valve first actuator port (A2), 4th hydraulic control one-way valve first actuator port (A4) connects
First hydraulic control one-way valve (4-1), the second hydraulic control one-way valve (4-2) are fixedly connected on the first derricking cylinder (6-1), first hydraulic control one-way valve second actuator port (B1), the second hydraulic control one-way valve second actuator port (B2) are communicated with loculus with the large chamber of the first derricking cylinder (6-1) respectively
3rd hydraulic control one-way valve (4-3), 4th hydraulic control one-way valve (4-4) is fixedly connected on the second derricking cylinder (6-2), 3rd hydraulic control one-way valve second actuator port (B3), 4th hydraulic control one-way valve second actuator port (B4) is communicated with large chamber with the loculus of the second derricking cylinder (6-2) respectively, first hydraulic control one-way valve drain tap (Y1), second hydraulic control one-way valve drain tap (Y2), 3rd hydraulic control one-way valve drain tap (Y3), 4th hydraulic control one-way valve drain tap (Y4) connects fuel tank, first hydraulic control one-way valve control port (X1), second hydraulic control one-way valve control port (X2), 3rd hydraulic control one-way valve control port (X3), 4th hydraulic control one-way valve control port (X4) is communicated with transfer valve second actuator port (D2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118835.7U CN204661182U (en) | 2015-02-28 | 2015-02-28 | Bilateral side crane twin-tub hydraulic control system with adjustable amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118835.7U CN204661182U (en) | 2015-02-28 | 2015-02-28 | Bilateral side crane twin-tub hydraulic control system with adjustable amplitude |
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| Publication Number | Publication Date |
|---|---|
| CN204661182U true CN204661182U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118835.7U Active CN204661182U (en) | 2015-02-28 | 2015-02-28 | Bilateral side crane twin-tub hydraulic control system with adjustable amplitude |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743457A (en) * | 2015-02-28 | 2015-07-01 | 徐州徐工随车起重机有限公司 | Double-cylinder amplitude-variable hydraulic control system for dual-side lateral crane |
-
2015
- 2015-02-28 CN CN201520118835.7U patent/CN204661182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743457A (en) * | 2015-02-28 | 2015-07-01 | 徐州徐工随车起重机有限公司 | Double-cylinder amplitude-variable hydraulic control system for dual-side lateral crane |
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