CN202531552U - Hydraulic device for automatically switching double insurance of main/ subsidiary continuous pressure feeding oil way - Google Patents
Hydraulic device for automatically switching double insurance of main/ subsidiary continuous pressure feeding oil way Download PDFInfo
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- CN202531552U CN202531552U CN2012200603363U CN201220060336U CN202531552U CN 202531552 U CN202531552 U CN 202531552U CN 2012200603363 U CN2012200603363 U CN 2012200603363U CN 201220060336 U CN201220060336 U CN 201220060336U CN 202531552 U CN202531552 U CN 202531552U
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Abstract
The utility model relates to a hydraulic device for automatically switching the double insurance of main/ subsidiary continuous pressure feeding oil way, comprising a main oil way, a spare oil way, a main control oil way and a spare control oil way. When the main oil way of the hydraulic device works, a Y type function three-bit four-way electromagnetic directional valve (4) in the main control oil way controls a main oil way two-bit four-way pilot operated directional control valve (16), and a main control oil way shuttle valve (7) automatically selects a cross-control main oil way two-bit dour-way liquid control pilot operated stop type selector valve (15) and a spare oil way two-bit four-way pilot operated stop type selector valve (13); and the running principle of the spare control oil way can be known in a similar way. A work oil way is opened on one hand, and the spare oil way is cut off on the other hand, so that the work oil way and the spare oil way are the spare oil ways reciprocally, and are mutually independent from each other, the organic and uniform combination of three functions such as the continuous oil feeding, the double insurance standby and the automatic switching can be perfectly realized, and the functional defect and the safety accident potential of the conventional oil way control can be overcome.
Description
Technical field
The utility model is mainly used in executive component need be continued in the hydraulic equipment of pressing active and standby dual fail-safe of automaticallying switch with oil circuit; Especially be directed to that tightness is had relatively high expectations and working medium belongs to the hydraulic pressure gas butterfly valve of inflammable, explosive, poisonous gas, such as furnace roof upper sealing valve, lower seal valve, the pressure equalizing valve of blast furnace with diffuse valve etc.
Background technique
The hydraulic circuit of traditional hydraulic pressure gas butterfly valve mainly contains following four kinds: first kind, and the loop of single channel two position four-way valves control; Second kind, the loop of the three-position four-way valve control of single channel; The third, the loop of the two-way four-way valve control of two-way; The 4th kind, the loop of the three-position four-way valve control of two-way; First kind, can continue oil supply, but not have subsequent use oil circuit; Second kind, can not continue oil supply, there is not subsequent use oil circuit yet; The third, can continue oil supply has subsequent use oil circuit, but can't realize active and standbyly automaticallying switch with oil circuit; The 4th kind, there is subsequent use oil circuit and active and standby can automatically switch, but can not continues oil supply with oil circuit.
Can find out according to above-mentioned, exist a defective in traditional gas butterfly valve oil hydraulic circuit at least, all can not and automatically switch and organically unite the subsequent use oil circuit of dual fail-safe, lasting oil supply.And the disappearance of these functions often all is fatal defective for the such key equipment of gas valve, when situation is serious even can cause manufacturing mechanism and personal safety; First kind, not having the subsequent use oil circuit of dual fail-safe is conspicuous potential safety hazard, for the valve of the inflammable, explosive, poisonous medium of this control, all can consider to adopt the subsequent use oil circuit of dual fail-safe usually; Second kind; Can not continue that the oil circuit of oil supply normally is made up of y-function three position four-way directional control valve and two-way Pilot operated check valve; Because the relation of the pressure maintaining performance of two-way Pilot operated check valve and the turbidity test of fluid; This oil circuit is difficult to let gas butterfly valve keep tight sealing for a long time, therefore, the potential safety hazard of gas leakage usually can occur.The third, the oil circuit that can not automatically switch can only be through switching manually; But the control valve platform is generally distant from master control operating room and night shift room usually near gas valve, when urgency; Subsequent use oil circuit can't be switched to immediately, also production safety hidden danger and accident can be caused.The 4th kind, defective is identical with second kind.
The model utility content
The utility model technical problem to be solved is to realize that through the hydraulic circuit control executing mechanism organic unity that continues oil supply, the subsequent use oil circuit of dual fail-safe and three functions that automatically switch combines, to avoid the defective of conventional hydraulic gas butterfly valve hydraulic circuit.
To achieve these goals; The utility model technological scheme is: a kind of being applied to continues to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe; Comprise working connection, subsequent use oil circuit, main control oil circuit and subsequent use control oil channel, said working connection mainly includes 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32); Said subsequent use oil circuit mainly includes 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit; Said main control oil circuit mainly includes 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said subsequent use control oil channel mainly includes 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6).
Said working connection includes working connection high-pressure ball valve (8), working connection one-way valve (9), 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32).One end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (16) of working connection; The A mouth of 24 logical pilot operated directional control valves (16) of working connection is connected with the two pairing separately ends of one-way throttle valve (19) of working connection respectively with the B mouth, and the other end of the two one-way throttle valves (19) of working connection is connected with two hydraulic fluid ports of oil hydraulic cylinder (32) respectively.
Said subsequent use oil circuit includes subsequent use oil circuit high-pressure ball valve (11), subsequent use oil circuit one-way valve (12), 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit.One end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; The A mouth of the logical pilot operated directional control valves (17) of 24 of subsequent use oil circuits is connected with the two pairing separately ends of one-way throttle valve (18) of subsequent use oil circuit respectively with the B mouth, the other end of subsequent use oil circuit pair one-way throttle valves (18) respectively with working connection in two hydraulic fluid ports of oil hydraulic cylinder (32) be connected.
Said main control oil circuit comprises main control oil circuit one-way valve (1), main control oil circuit high-pressure ball valve (3), 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said main control oil circuit one-way valve (1) one end connects the draining L pipe of hydraulic power unit, and the other end of said main control oil circuit one-way valve (1) is connected with the T mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4); Main control oil circuit high-pressure ball valve (3) one ends connect the control oil X mouth of hydraulic power unit, and the other end is connected with the P mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4); 34 energisings of main control oil circuit y-function magnetic selector valve (4) A mouth divides two-way to be connected with the filler opening of main control oil circuit shuttle valve (7) and a control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The B mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4) divides two-way to be connected with the other end filler opening of main control oil circuit shuttle valve (7) and the b control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The oil outlet of main control oil circuit shuttle valve (7) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (15) of 24 of working connections, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (13) in another road and subsequent use oil circuit controls mouth and is connected.
Said subsequent use control oil channel comprises subsequent use control oil channel high-pressure ball valve (2), 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6); Said subsequent use control oil channel high-pressure ball valve (2) one ends connect the control oil X mouth of hydraulic power unit, and the other end of subsequent use control oil channel high-pressure ball valve (2) is connected with the P mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5); The A mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the filler opening of subsequent use control oil channel shuttle valve (6) and a control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The B mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the other end filler opening of subsequent use control oil channel shuttle valve (6) and the b control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The oil outlet of subsequent use control oil channel shuttle valve (6) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (13) of 24 of subsequent use oil circuits, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (15) in another road and working connection controls mouth and is connected.
The beneficial effect of the utility model is: 1 continues to give pressure; Because directly the action of control oil hydraulic cylinder is two four-way pilot operated directional control valves; Therefore valve open with close rear oil duct and can continue to pressure; Guarantee endurable tight the closing of valve, made gas valve realize zero leakage, blocked the accident risk that causes because of gas leakage; The subsequent use oil circuit of 2 dual fail-safes owing to adopted the separate non-interfering oil circuit of the two subsequent use each other oil circuits of cover, has guaranteed the two-way safeguarding function of oil circuit.When working oil path broke down suddenly, oil circuit can switch to subsequent use oil circuit at any time immediately, ensured the proper functioning of gas valve.Simultaneously can also on-line maintenance service work oil path failure, and can not have influence on the operation that has oil circuit; 3 automatically switch; Utilize two four-way pilot operated directional control valve switching-overs of y-function three position four-way electromagnetic valve control of control oil channel; Control the switching-over of the cut-off type selector valve in working connection and the subsequent use oil circuit simultaneously, make the switching of working oil path and subsequent use oil circuit and the control of oil hydraulic cylinder action once accomplish, removed the worry of manual switching oil circuit from; Try to gain time precious to one in the time of can switching to the emergency situation generation at any time rapidly, avoided the security incident that causes because of manual switching is untimely.
Description of drawings
Fig. 1 is embodiment's hydraulic schematic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the technological scheme of the utility model is described further.
As shown in Figure 1, the utility model relates to and is applied to continue to give press active and standby hydraulic pressure installation with oil circuit dual fail-safe automatic switchover, comprises working connection, subsequent use oil circuit, main control oil circuit and subsequent use control oil channel; Said working connection includes working connection high-pressure ball valve (8), working connection one-way valve (9), 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32); Said subsequent use oil circuit includes subsequent use oil circuit high-pressure ball valve (11), subsequent use oil circuit one-way valve (12), 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit; Said main control oil circuit comprises main control oil circuit one-way valve (1), main control oil circuit high-pressure ball valve (3), 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said subsequent use control oil channel comprises subsequent use control oil channel high-pressure ball valve (2), 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6).During this hydraulic pressure installation working connection work; Be to utilize 24 logical pilot operated directional control valves (16) of 34 of main control oil circuit y-functions energising magnetic selector valve (4) control working connection, select to intersect 24 logical hydraulic control cut-off type selector valves (15) of control working connection and 24 of subsequent use oil circuits automatically through main control oil circuit shuttle valve (7) simultaneously and lead to hydraulic control cut-off type selector valves (13); Subsequent use oil circuit work running principle in like manner can be known.Open on the one hand working oil path, cut off subsequent use oil circuit on the one hand, both subsequent use each other oil circuit, separate again, perfectly realized lasting oil supply, dual fail-safe is subsequent use and the organic unity of three functions that automatically switch combines.
Said working connection includes working connection high-pressure ball valve (8), working connection one-way valve (9), 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32).One end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (16) of working connection; The A mouth and the B mouth of 24 logical pilot operated directional control valves (16) of working connection; Be connected with the two pairing separately ends of one-way throttle valve (19) of working connection respectively, the other end of the two one-way throttle valves (19) of working connection is connected with two hydraulic fluid ports of oil hydraulic cylinder (32) respectively.
Said subsequent use oil circuit includes subsequent use oil circuit high-pressure ball valve (11), subsequent use oil circuit one-way valve (12), 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit.One end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; The A mouth and the B mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; Be connected with the two pairing separately ends of one-way throttle valve (18) of subsequent use oil circuit respectively, the other end of the two one-way throttle valves (18) of subsequent use oil circuit respectively with working connection in two hydraulic fluid ports of oil hydraulic cylinder (32) be connected.
Said main control oil circuit comprises main control oil circuit one-way valve (1), main control oil circuit high-pressure ball valve (3), 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said main control oil circuit one-way valve (1) one end connects the draining L pipe of hydraulic power unit, and the other end of said main control oil circuit one-way valve (1) divides two-way to be connected with the T mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4) and subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) respectively; Main control oil circuit high-pressure ball valve (3) one ends connect the control oil X mouth of hydraulic power unit, and the other end of main control oil circuit high-pressure ball valve (3) is connected with the P mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4); 34 energisings of main control oil circuit y-function magnetic selector valve (4) A mouth divides two-way to be connected with the filler opening of main control oil circuit shuttle valve (7) and a control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The B mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4) divides two-way to be connected with the other end filler opening of main control oil circuit shuttle valve (7) and the b control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The oil outlet of main control oil circuit shuttle valve (7) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (15) of 24 of working connections, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (13) in another road and subsequent use oil circuit controls mouth and is connected.
Said subsequent use control oil channel comprises subsequent use control oil channel high-pressure ball valve (2), 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6); Said subsequent use control oil channel high-pressure ball valve (2) one ends connect the control oil X mouth of hydraulic power unit, and the other end of subsequent use control oil channel high-pressure ball valve (2) is connected with the P mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5); The A mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the filler opening of subsequent use control oil channel shuttle valve (6) and a control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The B mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the other end filler opening of subsequent use control oil channel shuttle valve (6) and the b control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The oil outlet of subsequent use control oil channel shuttle valve (6) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (13) of 24 of subsequent use oil circuits, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (15) in another road and working connection controls mouth and is connected.
Also be provided with four working connection high-pressure ball valves (26), (27), (30), (31) and two working connection pressure measurement exhaust joints (20), (21) in the working connection in the utility model; In subsequent use oil circuit, also be provided with two subsequent use oil circuit high-pressure ball valves (24), (25) and two pressure measurement exhaust joints (22), (23); In the main control oil circuit, also be provided with main control oil circuit high-pressure ball valve (10); In subsequent use control oil channel, also be provided with subsequent use control oil channel high-pressure ball valve (14), be convenient to the debugging and the maintenance of this device.
The concrete working principle of the utility model is:
1. when operation gas valve working connection is opened the valve instruction; The electromagnet a of 3 the 4 energising magnetic selector valves (4) of main control oil circuit y-function gets; Control oil X from hydraulic power unit connects with the oily X2 of control; Through being divided into two-way behind main control oil circuit y-function 3 the 4 energisings magnetic selector valve (4); One tunnel process main control oil circuit shuttle valve (7) selects the back intersection to control 24 logical hydraulic control cut-off type selector valves (15) of working connection and 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit automatically, makes the power oil P of working connection and the oil circuit of oil return T all open, and makes the power oil P of subsequent use oil circuit and the oil circuit of oil return T all close simultaneously; Another road gets into the b hydraulic control mouth of 24 logical pilot operated directional control valves (16) of working connection; Make the power oil P and the A1 of working connection connect; Make oil return T and B1 connect simultaneously; After power oil P leads to pilot operated directional control valves (16) through 24 of working connections, get into the rodless cavity of oil hydraulic cylinders (32) again through the two one-way throttle valves (19) of working connection and working connection high-pressure ball valve (27), (31), promote valve open.
2. when operation gas valve working connection closes the valve instruction; The electromagnet b of 3 the 4 energising magnetic selector valves (4) of main control oil circuit y-function gets; Control oil X from hydraulic power unit connects with the oily X1 of control; Through being divided into two-way behind main control oil circuit y-function 3 the 4 energisings magnetic selector valve (4); One tunnel process main control oil circuit shuttle valve (7) selects the back intersection to control 24 logical hydraulic control cut-off type selector valves (15) of working connection and 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit automatically, makes the power oil P of working connection and the oil circuit of oil return T all open, and makes the power oil P of subsequent use oil circuit and the oil circuit of oil return T all close simultaneously; Another road gets into a hydraulic control mouth of 24 logical pilot operated directional control valves (16) of working connection; Make the power oil P and the B1 of working connection connect; Make oil return T and A1 connect simultaneously; After power oil P leads to pilot operated directional control valves (16) through 24 of working connections, get into the rod chamber of oil hydraulic cylinder (32) again through the two one-way throttle valves (19) of working connection and working connection high-pressure ball valve (26), (30) back, the promotion valve closing.
3. when the subsequent use oil circuit of operation gas valve is opened the valve instruction; The electromagnet a of 3 the 4 energising magnetic selector valves (5) of subsequent use control oil channel y-function gets; Control oil X mouth from hydraulic power unit is connected with the oily X4 mouth of control; Be divided into two-way behind 3 the 4 energising magnetic selector valves (5) of control oil through subsequent use control oil channel y-function; The one tunnel subsequent use control oil channel shuttle valve of process (6) selects the back intersection to control 24 logical hydraulic control cut-off type selector valves (15) of working connection and 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit automatically, makes the power oil P of subsequent use oil circuit and the oil circuit of oil return T all open, and makes the power oil P of working connection and the oil circuit of oil return T all close simultaneously; Another road gets into the b hydraulic control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; Make the power oil P and the A2 of working connection connect; Make oil return T and B2 connect simultaneously; After power oil P leads to pilot operated directional control valves (17) through 24 of subsequent use oil circuits, get into the rodless cavity of oil hydraulic cylinder (32) again through the two one-way throttle valves (18) of subsequent use oil circuit, subsequent use oil circuit high-pressure ball valve (25) and working connection high-pressure ball valve (31) back, the promotion valve open.
4. when operation gas valve working connection closes the valve instruction; The electromagnet b of 3 the 4 energising magnetic selector valves (5) of subsequent use control oil channel y-function gets; Control oil X mouth from hydraulic power unit is connected with the oily X3 mouth of control; Be divided into two-way behind 3 the 4 energising magnetic selector valves (5) of control oil through subsequent use control oil channel y-function; The one tunnel subsequent use control oil channel shuttle valve of process (6) selects the back intersection to control 24 logical hydraulic control cut-off type selector valves (15) of working connection and 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit automatically, makes the power oil P of subsequent use oil circuit and the oil circuit of oil return T all open, and makes the power oil P of working connection and the oil circuit of oil return T all close simultaneously; Another road gets into a hydraulic control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; Make the power oil P and the B2 of working connection connect; Make oil return T and A2 connect simultaneously; After power oil P leads to pilot operated directional control valves (17) through 24 of subsequent use oil circuits, get into the rod chamber of oil hydraulic cylinder (32) again through the two one-way throttle valves (18) of subsequent use oil circuit, subsequent use oil circuit high-pressure ball valve (24) and working connection high-pressure ball valve (30) back, the promotion valve closing.
The above is merely the preferable possible embodiments of the utility model, is not in order to limit the protection domain of the utility model.
Claims (5)
1. one kind is applied to continue to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe; Comprise working connection, subsequent use oil circuit, main control oil circuit and subsequent use control oil channel; It is characterized in that said working connection mainly includes 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32); Said subsequent use oil circuit mainly includes 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit; Said main control oil circuit mainly includes 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said subsequent use control oil channel mainly includes 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6).
2. according to claim 1 being applied to continues to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe; It is characterized in that said working connection includes working connection high-pressure ball valve (8), working connection one-way valve (9), 24 logical hydraulic control cut-off type selector valves (15) of working connection, 24 logical pilot operated directional control valves (16) of working connection, the two one-way throttle valves (19) of working connection and oil hydraulic cylinder (32); One end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said working connection high-pressure ball valve (8) and working connection one-way valve (9) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (15) of working connection and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (16) of working connection; The A mouth of 24 logical pilot operated directional control valves (16) of working connection is connected with the two pairing separately ends of one-way throttle valve (19) of working connection respectively with the B mouth, and the other end of the two one-way throttle valves (19) of working connection is connected with two hydraulic fluid ports of oil hydraulic cylinder (32) respectively.
3. according to claim 1 and 2 being applied to continues to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe; It is characterized in that said subsequent use oil circuit includes subsequent use oil circuit high-pressure ball valve (11), subsequent use oil circuit one-way valve (12), 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit, 24 logical pilot operated directional control valves (17) of subsequent use oil circuit and the two one-way throttle valves (18) of subsequent use oil circuit; One end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with oil return T pipe with the power oil P pipe of hydraulic power unit respectively, and the other end of said subsequent use oil circuit high-pressure ball valve (11) and subsequent use oil circuit one-way valve (12) is connected with the T mouth with the P mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit respectively; The A mouth of 24 logical hydraulic control cut-off type selector valves (13) of subsequent use oil circuit and B mouth are connected respectively to the P mouth and the T mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit; The A mouth of the logical pilot operated directional control valves (17) of 24 of subsequent use oil circuits is connected with the two pairing separately ends of one-way throttle valve (18) of subsequent use oil circuit respectively with the B mouth, the other end of subsequent use oil circuit pair one-way throttle valves (18) respectively with working connection in two hydraulic fluid ports of oil hydraulic cylinder (32) be connected.
4. continue to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe according to described being applied to of claim 1-3; It is characterized in that; Said main control oil circuit comprises main control oil circuit one-way valve (1), main control oil circuit high-pressure ball valve (3), 34 energisings of main control oil circuit y-function magnetic selector valve (4), main control oil circuit shuttle valve (7); Said main control oil circuit one-way valve (1) one end connects the draining L pipe of hydraulic power unit, and the other end of said main control oil circuit one-way valve (1) is connected with the T mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4); Main control oil circuit high-pressure ball valve (3) one ends connect the control oil X mouth of hydraulic power unit, and the other end is connected with the P mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4); 34 energisings of main control oil circuit y-function magnetic selector valve (4) A mouth divides two-way to be connected with the filler opening of main control oil circuit shuttle valve (7) and a control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The B mouth of main control oil circuit y-function 34 energisings magnetic selector valve (4) divides two-way to be connected with the other end filler opening of main control oil circuit shuttle valve (7) and the b control mouth of 24 logical pilot operated directional control valves (16) of working connection respectively; The oil outlet of main control oil circuit shuttle valve (7) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (15) of 24 of working connections, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (13) in another road and subsequent use oil circuit controls mouth and is connected.
5. continue to give pressure the active and standby hydraulic pressure installation that automaticallyes switch with the oil circuit dual fail-safe according to described being applied to of claim 1-4; It is characterized in that said subsequent use control oil channel comprises subsequent use control oil channel high-pressure ball valve (2), 34 energisings of subsequent use control oil channel y-function magnetic selector valve (5), subsequent use control oil channel shuttle valve (6); Said subsequent use control oil channel high-pressure ball valve (2) one ends connect the control oil X mouth of hydraulic power unit, and the other end is connected with the P mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5); The A mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the filler opening of subsequent use control oil channel shuttle valve (6) and a control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The B mouth of subsequent use control oil channel y-function 34 energisings magnetic selector valve (5) divides two-way to be connected with the other end filler opening of subsequent use control oil channel shuttle valve (6) and the b control mouth of 24 logical pilot operated directional control valves (17) of subsequent use oil circuit respectively; The oil outlet of subsequent use control oil channel shuttle valve (6) is divided into two-way, and one the tunnel mouthful links to each other with a control of the logical hydraulic control cut-off type selector valves (13) of 24 of subsequent use oil circuits, and the b of 2 the 4 logical hydraulic control cut-off type selector valves (15) in another road and working connection controls mouth and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200603363U CN202531552U (en) | 2012-02-23 | 2012-02-23 | Hydraulic device for automatically switching double insurance of main/ subsidiary continuous pressure feeding oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200603363U CN202531552U (en) | 2012-02-23 | 2012-02-23 | Hydraulic device for automatically switching double insurance of main/ subsidiary continuous pressure feeding oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531552U true CN202531552U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200603363U Expired - Lifetime CN202531552U (en) | 2012-02-23 | 2012-02-23 | Hydraulic device for automatically switching double insurance of main/ subsidiary continuous pressure feeding oil way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847721A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Pressure-maintaining control device and engineering machine with same |
| CN113719248A (en) * | 2021-06-24 | 2021-11-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
| CN114410868A (en) * | 2022-01-23 | 2022-04-29 | 中钢集团西安重机有限公司 | Blast furnace top material flow adjusting control system and method |
-
2012
- 2012-02-23 CN CN2012200603363U patent/CN202531552U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847721A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Pressure-maintaining control device and engineering machine with same |
| CN113719248A (en) * | 2021-06-24 | 2021-11-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
| CN113719248B (en) * | 2021-06-24 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
| CN114410868A (en) * | 2022-01-23 | 2022-04-29 | 中钢集团西安重机有限公司 | Blast furnace top material flow adjusting control system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |