CN204386971U - For the hydraulic control system of snowslinger - Google Patents
For the hydraulic control system of snowslinger Download PDFInfo
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- CN204386971U CN204386971U CN201520026338.4U CN201520026338U CN204386971U CN 204386971 U CN204386971 U CN 204386971U CN 201520026338 U CN201520026338 U CN 201520026338U CN 204386971 U CN204386971 U CN 204386971U
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Abstract
The utility model discloses a kind of hydraulic control system for snowslinger, it comprises for the oil hydraulic motor control loop of hydraulic control motor starting or stall with for the lifting of hydraulic control cylinder piston rod or the hydraulic jack control loop that stops, this oil hydraulic motor control loop comprises the first filler opening connected successively, first one-way valve, diverter valve, first solenoid valve and the second one-way valve, two outlets of diverter valve are connected with the import of two oil hydraulic motors respectively, the import of the first solenoid valve is connected with the outlet of two oil hydraulic motors, hydraulic jack control loop comprises the second filler opening, second solenoid valve, synchronized splitter combiner valve and Pilot operated check valve, the bottom of two working holes of the second solenoid valve connects the second filler opening and fuel tank respectively.The utility model can make oil hydraulic motor control loop in inoperative situation, not be subject to the impact of center of gravity and external force, thus can not produce from then occur accident, and effectively slowly can adjust the lifting of hydraulic jack.
Description
Technical field
The utility model relates to a kind of hydraulic control system for snowslinger.
Background technique
At present, traditional snowslinger comprise snow sweeping roller, two for drive snow sweeping roller to rotate oil hydraulic motor, two for driving hydraulic jack and a control system of snow sweeping roller vertical lift, and the steel brush outer surface of snow sweeping roller is provided with for sweeping away snow, wherein, this control system comprises the oil hydraulic motor control loop rotated for hydraulic control motor and the hydraulic jack control loop be elevated for hydraulic control oil cylinder, thus makes the working environment that steel brush reaches best.
As shown in Figure 1, traditional oil hydraulic motor control loop 1 ＇ comprises and connects one first filler opening 11 ＇, one first one-way valve 12 ＇, diverter valve 13 ＇, two oil hydraulic motor 14 ＇, one second one-way valve 15 ＇ and fuel tank 16 ＇ successively, and this oil hydraulic motor control loop 1 ＇ also comprises the first solenoid valve 17 ＇ and relief valve 18 ＇ that are connected in series, and one for detecting pressure gauge 19 ＇ of the pressure of the first filler opening 11 ＇.But there is following defect in this oil hydraulic motor control loop 1 ＇: when this snowslinger quits work, when relief valve blocking or stuck time, oil hydraulic motor easily produces rotation because being subject to center of gravity or External Force Acting and causes accident.
As shown in Figure 2, traditional hydraulic jack control loop 3 ＇ comprises one second one-way valve 31 ＇, reduction valve 32 ＇ and two-position two-way solenoid valve 33 ＇ that connect successively.But this hydraulic jack control loop exists following defect: when oil hydraulic motor works, effectively slow-action cannot adjust telescopic oil cylinder height, reach best effort displacement.
Prior art
Oil hydraulic motor control loop: 1 ＇
First filler opening: 11 ＇ first one-way valves: 12 ＇ diverter valves: 13 ＇
Oil hydraulic motor: 14 ＇ second one-way valves: 15 ＇ fuel tanks: 16 ＇
First solenoid valve: 17 ＇ relief valves: 18 ＇ pressure gauges: 19 ＇
Hydraulic jack control loop: 3 ＇
Second one-way valve: 31 ＇ reduction valve: 32 ＇ two-position two-way solenoid valves: 33 ＇
The utility model
Oil hydraulic motor control loop: 1
First filler opening: 11 first one-way valves: 12 diverter valves: 13
Oil hydraulic motor: 14 first solenoid valves: 15 second one-way valves: 16
Fuel tank: 17 first pressure gauges: 18 first relief valves: 19
3rd solenoid valve: 20 pressure switches: 21
Hydraulic jack control loop: 3
Second filler opening: 31 second solenoid valves: 32 synchronized splitter combiner valve: 33
Hydraulic jack: 34 Pilot operated check valves: 35 the 4th solenoid valves: 36
Second pressure gauge: 37 second relief valves: 38
Additional control loop: 5
Proportional flow control valve: 51 reduction valve: 52 the 3rd one-way valves: 53
Model utility content
The technical problems to be solved in the utility model be in order to overcome in traditional oil hydraulic motor control loop of the prior art oil hydraulic motor easily produce because being subject to center of gravity or External Force Acting that rotation causes in accident and hydraulic jack control loop cannot the effective defect such as slow-action adjustment telescopic oil cylinder height, a kind of hydraulic control system for snowslinger is provided.
The utility model solves above-mentioned technical problem by following technical proposals:
For a hydraulic control system for snowslinger, this snowslinger comprises a snow sweeping roller, two for the oil hydraulic motor that drives this snow sweeping roller to rotate and two, for driving the hydraulic jack of this snow sweeping roller vertical lift, its feature is, this hydraulic control system comprises:
One oil hydraulic motor control loop, for hydraulic control motor starting or stall, this oil hydraulic motor control loop comprises:
One first filler opening, this first filler opening is connected with a fuel tank;
One first one-way valve, the import of this first one-way valve is connected with this first filler opening;
One diverter valve, the import of this diverter valve is connected with the outlet of this first one-way valve, and two outlets of this diverter valve are connected with the import of two these oil hydraulic motors respectively;
One first solenoid valve, the import of this first solenoid valve is connected with the outlet of two these oil hydraulic motors, and this first solenoid valve is two-position two-way solenoid valve;
One second one-way valve, the import of this second one-way valve is connected with the outlet of this first solenoid valve, and the outlet of this second one-way valve is connected with this fuel tank;
One hydraulic jack control loop, for the lifting of hydraulic control cylinder piston rod or stopping, this hydraulic jack control loop comprises:
One second filler opening, this second filler opening is also connected with this fuel tank;
One second solenoid valve, the bottom of two working holes of this second solenoid valve connects this second filler opening and this fuel tank respectively, and this second solenoid valve is three position four-way electromagnetic valve;
One synchronous flow divider-combiner, the bottom of two working holes of this synchronized splitter combiner valve is all connected to the top of one of them working hole of this second solenoid valve, and the top of two working holes of this synchronized splitter combiner valve is connected to the top of two these hydraulic jacks;
One Pilot operated check valve, the bottom of two working holes of this Pilot operated check valve is connected to the top of two working holes of this second solenoid valve, and the top of two working holes of this Pilot operated check valve is connected to the bottom of two these hydraulic jacks.
In this programme, adopt said structure form, can make oil hydraulic motor control loop in inoperative situation, not be subject to the impact of center of gravity and external force, thus can not produce from then occur accident.
Preferably, this oil hydraulic motor control loop comprises one for detecting the first Pressure testing branch road of the pressure of this first filler opening, one end of this first Pressure testing branch road is connected between this first filler opening and import of this first one-way valve, and the other end of this first Pressure testing branch road is connected with one first pressure gauge.
Preferably, this oil hydraulic motor control loop also comprises the first off-load branch road, between the outlet that one end of this first off-load branch road is connected to this first one-way valve and the import of this diverter valve, the other end of this first off-load branch road is connected between the outlet of this fuel tank and this second one-way valve, and this first off-load branch road comprises the 3rd solenoid valve and the first relief valve that are connected in series, the 3rd solenoid valve is two-position two-way solenoid valve.
Preferably, this oil hydraulic motor control loop also comprises an additional branches, between the outlet that one end of this additional branches is connected to this first one-way valve and the import of this diverter valve, and the other end of this additional branches is connected with a pressure switch, and this pressure switch is for controlling the 3rd solenoid valve dead electricity.
In this programme, pressure switch can control the 3rd solenoid valve dead electricity, thus ensures that the first relief valve can normally work, and guarantees release portion pressure, thus ensures the stability of the force value of oil hydraulic motor entrance point, guarantee that oil hydraulic motor normally works.
Preferably, this hydraulic jack control loop also comprises one the 4th solenoid valve, between the top that one end of 4th solenoid valve is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, the other end of the 4th solenoid valve is connected between the bottom of the top of one of them working hole of this second solenoid valve and two working holes of this synchronized splitter combiner valve, and the 4th solenoid valve is two-position two-way solenoid valve.
Preferably, this hydraulic jack control loop also comprises one for detecting the second Pressure testing branch road of the pressure of the bottom of two these hydraulic jacks, between the top that one end of this second Pressure testing branch road is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, the other end of this second Pressure testing branch road is connected with one second pressure gauge.
Preferably, this hydraulic jack control loop also comprises one second off-load branch road, this the second off-load branch road comprises one second relief valve, the import of this second relief valve is connected between the bottom of one of them working hole of this second filler opening and this second solenoid valve, and the outlet of this second relief valve is connected to the bottom of another working hole of this fuel tank and this second solenoid valve.
Preferably, this hydraulic control system also comprises one for controlling the additional control loop that two these hydraulic jacks rise, between the outlet that one end of this additional control loop is connected to this first one-way valve and the import of this diverter valve, between the top that the other end is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, and this additional control loop comprises the proportional flow control valve be connected in series, reduction valve and the 3rd one-way valve, wherein, between the top that the outlet of the 3rd one-way valve is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks.
In this programme, being connected of proportional flow control valve and reduction valve, when making the pressure increase causing oil hydraulic motor to be subject to when the degree of depth that snow sweeping roller in snowslinger is ploughed in snow is excessive, the piston rod that can control this hydraulic jack rises, thus reduce snow sweeping roller and plough the degree of depth in snow, and then reduce the pressure that oil hydraulic motor is subject to, guarantee the normal work of snowslinger.
On the basis meeting related domain general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is:
The utility model can make oil hydraulic motor control loop in inoperative situation, not be subject to the impact of center of gravity and external force, thus can not produce from then occur accident, simultaneously, when oil hydraulic motor works, this hydraulic control system slowly can adjust the lifting of hydraulic jack effectively, thus guarantees that this oil hydraulic motor and snow sweeping roller are in best working position.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional oil hydraulic motor control loop of the prior art.
Fig. 2 is the structural representation of traditional hydraulic jack control loop of the prior art.
Fig. 3 is the structural representation of the hydraulic control system for snowslinger of the utility model preferred embodiment.
Description of reference numerals:
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Please understood according to Fig. 3, the utility model provides a kind of hydraulic control system for snowslinger, wherein, this snowslinger comprise a snow sweeping roller (not shown), two for the oil hydraulic motor 14 that drives this snow sweeping roller to rotate and two for driving the hydraulic jack 34 of this snow sweeping roller vertical lift, and the outer surface of snow sweeping roller is provided with the steel brush for sweeping away snow.
As shown in Figure 3, this hydraulic control system comprises one and to start for hydraulic control motor 14 or the oil hydraulic motor control loop 1 of stall, and this oil hydraulic motor control loop 1 comprises one first filler opening 11,1 first one-way valve 12, diverter valve 13,1 first solenoid valve 15,1 second one-way valve 16.Wherein, this first filler opening 11 is connected with a fuel tank 17; The import of this first one-way valve 12 is connected with the first filler opening 11, and the outlet of the first one-way valve 12 is connected with the import of diverter valve 13, and two outlets of diverter valve 13 are connected with the import of two these oil hydraulic motors 14 respectively; The import of the first solenoid valve 15 is connected with the outlet of two oil hydraulic motors 14, and this first solenoid valve 15 is two-position two-way solenoid valve; The import of the second one-way valve 16 is connected with the outlet of this first solenoid valve 15, and the outlet of this second one-way valve 16 is connected with fuel tank 17.
In the present embodiment, can avoid two oil hydraulic motors 14 in its inoperative condition when the first solenoid valve 15 dead electricity because of be subject to gravity or external force impact rotate cause the hydraulic oil of its inside to be discharged from the second one-way valve 16, thus avoid formation vacuum in two oil hydraulic motors 14, and then make two oil hydraulic motors 14 can not produce from then occur accident.Meanwhile, the second one-way valve 16 can guarantee that two oil hydraulic motors 14 can not counterrotating, and guarantees that isolated air seals in.
In addition, this oil hydraulic motor control loop 1 comprises one for detecting the first Pressure testing branch road of the pressure of this first filler opening 11, one end of this first Pressure testing branch road is connected between the first filler opening 11 and the import of the first one-way valve 12, and the other end of this first Pressure testing branch road is connected with one first pressure gauge 18.Whether in working order first pressure gauge 18 can check the first filler opening 11 place force value, if overpressure controls the 3rd solenoid valve 20 dead electricity by pressure switch 21, equipment pressure is from the first relief valve 19 directly off-load oil sump tank 17, within the setting pressure of the first relief valve 19 should remain on 21MPA, thus ensure device security.
In addition, this oil hydraulic motor control loop 1 also comprises the first off-load branch road, between the outlet that one end of this first off-load branch road is connected to the first one-way valve 12 and the import of diverter valve 13, the other end of this first off-load branch road is connected between fuel tank 17 and the outlet of the second one-way valve 16.And this first off-load branch road comprises the 3rd solenoid valve 20 that is connected in series and the first relief valve the 19, three solenoid valve 20 is two-position two-way solenoid valve.
In the present embodiment, the first solenoid valve 15 and the 3rd solenoid valve 20 simultaneously electric drive two oil hydraulic motors 14 work; In two out-of-work situations of oil hydraulic motor 14, the first solenoid valve 15 and the 3rd solenoid valve 20 dead electricity simultaneously, makes two oil hydraulic motors 14 to affect by himself or external factor and to rotate.And the first solenoid valve 15 and the 3rd solenoid valve 20 electric when, the hydraulic oil at the first filler opening 11 place distributes to two oil hydraulic motors 14 by the first one-way valve 12 and diverter valve 13 simultaneously, and oil hydraulic motor 14 is rotated, and realizes the normal work of equipment.
Further, this oil hydraulic motor control loop 1 also comprises an additional branches, one end of this additional branches is connected between the outlet of this first one-way valve 12 and the import of this diverter valve 13, and the other end of this additional branches is connected with a pressure switch 21, this pressure switch 21 is for controlling the 3rd solenoid valve 20 dead electricity.Wherein, pressure switch 21 can control the 3rd solenoid valve 20 dead electricity, thus ensures that the first relief valve 19 can normally work, and guarantees release portion pressure, thus ensures the stability of the force value of oil hydraulic motor 14 entrance point, guarantee that oil hydraulic motor 14 normally works.
Please understood according to Fig. 3, the utility model also comprises a hydraulic jack control loop 3 being elevated for hydraulic control oil cylinder 34 piston rod or stopping, and this hydraulic jack control loop 3 comprises the second filler opening 31, second solenoid valve 32, synchronized splitter combiner valve 33 and Pilot operated check valve 35.
Wherein, this second filler opening 31 is also connected with fuel tank 17; The bottom of two working holes of this second solenoid valve 32 connects the second filler opening 31 and fuel tank 17 respectively, and the second solenoid valve 32 is three position four-way electromagnetic valve; The bottom of two working holes of this synchronized splitter combiner valve 33 is all connected to the top of one of them working hole of the second solenoid valve 32, and the top of two working holes of this synchronized splitter combiner valve 33 is connected to the top of two these hydraulic jacks 34; The bottom of two working holes of this Pilot operated check valve 35 is connected to the top of two working holes of the second solenoid valve 32, and the top of two working holes of this Pilot operated check valve 35 is connected to the bottom of two hydraulic jacks 34.
In the present embodiment, when obtaining electric on the right of the second solenoid valve 32, the hydraulic oil at the second filler opening 31 place distributes to hydraulic jack 34 by synchronized splitter combiner valve 33 simultaneously, thus the piston rod of two hydraulic jacks 34 is declined, and realizes hydraulic jack 34 sync bit and switches.When second solenoid valve 32 left side obtains electric, two hydraulic jacks, 34, two hydraulic jacks 34 distributed to by the hydraulic oil at the second filler opening 31 place top by Pilot operated check valve 35 realizes hydraulic jack 34 sync bit is stretched by synchronized splitter combiner valve 33.
In addition, this hydraulic jack control loop 3 also comprises one the 4th solenoid valve 36, between the top that one end of 4th solenoid valve 36 is connected to two working holes of this Pilot operated check valve 35 and the bottom of two these hydraulic jacks 34, the other end of the 4th solenoid valve 36 is connected between the bottom of the top of one of them working hole of this second solenoid valve 32 and two working holes of synchronized splitter combiner valve 33, and the 4th solenoid valve 36 is two-position two-way solenoid valve.
In addition, this hydraulic jack control loop 3 also comprises one for detecting the second Pressure testing branch road of the pressure of the bottom of these two these hydraulic jacks 34.Between the top that one end of this second Pressure testing branch road is connected to two working holes of this Pilot operated check valve 35 and the bottom of two these hydraulic jacks 34, the other end of this second Pressure testing branch road is connected with one second pressure gauge 37.
Further, this hydraulic jack control loop 3 also comprises one second off-load branch road, and this second off-load branch road comprises one second relief valve 38.The import of this second relief valve 38 is connected between the bottom of one of them working hole of the second filler opening 31 and the second solenoid valve 32, and the outlet of this second relief valve 38 is connected to the bottom of another working hole of fuel tank 17 and the second solenoid valve 32.
In the present embodiment, the second relief valve 38 guarantees that the pressure at hydraulic jack 34 two ends all can not be too high, and the setting pressure of the second relief valve 38 should within 8MPA.Under oil hydraulic motor and hydraulic jack are in shutdown or off working state; 4th solenoid valve 36 obtains electric; second solenoid valve is in off-position; the bottom pressure of hydraulic jack 34 is directly released in fuel tank by the 4th solenoid valve, the second solenoid valve; the piston rod of hydraulic jack is made to drop to lowermost end; thus make hydraulic jack be in plateau, and reduce the use wearing and tearing of each equipment.Second pressure gauge 37 can observe the pressure condition of the bottom of hydraulic jack 34.When not supplying hydraulic oil, and the second solenoid valve, the 4th solenoid valve are in power failure state, and Pilot operated check valve 35 guarantees the bottom pressure remained steady of hydraulic jack 34, and the piston rod of hydraulic jack 34 does not decline.
Please understood according to Fig. 3, this hydraulic control system also comprises one for controlling the additional control loop 5 that two these hydraulic jacks 34 rise.Wherein, between the outlet that one end of this additional control loop 5 is connected to the first one-way valve 12 and the import of diverter valve 13, between the top that the other end is connected to two working holes of Pilot operated check valve 35 and the bottom of two these hydraulic jacks 34.And this additional control loop 5 comprises the proportional flow control valve 51, reduction valve 52 and the 3rd one-way valve 53 that are connected in series, meanwhile, between the outlet of the 3rd one-way valve 53 top that is connected to two working holes of this Pilot operated check valve 35 and the bottom of two these hydraulic jacks 34.
In the present embodiment, being connected of proportional flow control valve 51 and reduction valve 52, when making the pressure increase causing oil hydraulic motor 14 to be subject to when the degree of depth that snow sweeping roller in snowslinger is ploughed in snow is excessive, the piston rod that can control this hydraulic jack 34 rises, thus reduce snow sweeping roller and plough the degree of depth in snow, and then reduce the pressure that oil hydraulic motor 14 is subject to, guarantee the normal work of snowslinger.
Certainly, in the using process of reality, when oil hydraulic motor 14 works, first obtain electric by the second solenoid valve 32, hydraulic jack 34 is made to arrive comparatively close work shift fast, then regulate proportional flow control valve 51 can the height of piston rod lifting of accurate hydraulic control oil cylinder 34, make hydraulic jack 34 arrive nearest working position, reach most ideal operation requirement.
In addition, reduction valve 52 guarantees that the bottom pressure of hydraulic jack 34 can not be too high, and setting pressure is guaranteed within 3MPA.The bottom pressure remained steady of hydraulic jack 34 guaranteed by 3rd one-way valve 53, and the piston rod of hydraulic jack 34 does not decline.
The working procedure of this hydraulic control system is:
In the piston rod decline process of hydraulic jack 34, the right of second solenoid valve 32 obtains electric, 4th solenoid valve 36 dead electricity, Pilot operated check valve 35 two-way admittance, the top that the hydraulic oil at the second filler opening 31 place flows into two hydraulic jacks 34 through the second solenoid valve 32, synchronized splitter combiner valve 33 successively promotes piston rod and declines, and the hydraulic oil of the bottom of two hydraulic jacks 34 is back in fuel tank 17 through Pilot operated check valve 35, second solenoid valve 32;
In the piston rod uphill process of hydraulic jack 34, the left side of the second solenoid valve 32 obtains electric, 4th solenoid valve 36 dead electricity, Pilot operated check valve 35 one-way conduction, the bottom that the hydraulic oil at the second filler opening 31 place flows into two hydraulic jacks 34 through the second solenoid valve 32, Pilot operated check valve 35 successively promotes piston rod and rises, and the hydraulic oil on the top of two hydraulic jacks 34 is back in fuel tank 17 through synchronized splitter combiner valve 33, second solenoid valve 32;
In oil hydraulic motor 14 start-up course, first solenoid valve 15 obtains electric, 3rd solenoid valve 20 dead electricity, the import that the hydraulic oil at the first filler opening 11 place flows into oil hydraulic motor 14 through the first one-way valve 12, diverter valve 13 drives two oil hydraulic motors 14 to rotate, and the hydraulic oil in oil hydraulic motor 14 is back to fuel tank 17 from outlet through the first solenoid valve 15, second one-way valve 16.
In sum, the utility model can make oil hydraulic motor control loop 1 in inoperative situation, not be subject to the impact of center of gravity and external force, thus can not produce from then occur accident, simultaneously, when oil hydraulic motor 14 works, this hydraulic control system slowly can adjust the lifting of hydraulic jack 34 effectively, thus guarantees that this oil hydraulic motor 14 and snow sweeping roller are in best working position.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these change and amendment all falls into protection domain of the present utility model.
Claims (8)
1. for a hydraulic control system for snowslinger, this snowslinger comprise a snow sweeping roller, two it is characterized in that for driving the hydraulic jack of this snow sweeping roller vertical lift for the oil hydraulic motor that drives this snow sweeping roller to rotate and two, this hydraulic control system comprises:
One oil hydraulic motor control loop, for hydraulic control motor starting or stall, this oil hydraulic motor control loop comprises:
One first filler opening, this first filler opening is connected with a fuel tank;
One first one-way valve, the import of this first one-way valve is connected with this first filler opening;
One diverter valve, the import of this diverter valve is connected with the outlet of this first one-way valve, and two outlets of this diverter valve are connected with the import of two these oil hydraulic motors respectively;
One first solenoid valve, the import of this first solenoid valve is connected with the outlet of two these oil hydraulic motors, and this first solenoid valve is two-position two-way solenoid valve;
One second one-way valve, the import of this second one-way valve is connected with the outlet of this first solenoid valve, and the outlet of this second one-way valve is connected with this fuel tank;
One hydraulic jack control loop, for the lifting of hydraulic control cylinder piston rod or stopping, this hydraulic jack control loop comprises:
One second filler opening, this second filler opening is also connected with this fuel tank;
One second solenoid valve, the bottom of two working holes of this second solenoid valve connects this second filler opening and this fuel tank respectively, and this second solenoid valve is three position four-way electromagnetic valve;
One synchronous flow divider-combiner, the bottom of two working holes of this synchronized splitter combiner valve is all connected to the top of one of them working hole of this second solenoid valve, and the top of two working holes of this synchronized splitter combiner valve is connected to the top of two these hydraulic jacks;
One Pilot operated check valve, the bottom of two working holes of this Pilot operated check valve is connected to the top of two working holes of this second solenoid valve, and the top of two working holes of this Pilot operated check valve is connected to the bottom of two these hydraulic jacks.
2. hydraulic control system as claimed in claim 1, it is characterized in that, this oil hydraulic motor control loop comprises one for detecting the first Pressure testing branch road of the pressure of this first filler opening, one end of this first Pressure testing branch road is connected between this first filler opening and import of this first one-way valve, and the other end of this first Pressure testing branch road is connected with one first pressure gauge.
3. hydraulic control system as claimed in claim 1, it is characterized in that, this oil hydraulic motor control loop also comprises the first off-load branch road, between the outlet that one end of this first off-load branch road is connected to this first one-way valve and the import of this diverter valve, the other end of this first off-load branch road is connected between the outlet of this fuel tank and this second one-way valve, and this first off-load branch road comprises the 3rd solenoid valve and the first relief valve that are connected in series, the 3rd solenoid valve is two-position two-way solenoid valve.
4. hydraulic control system as claimed in claim 3, it is characterized in that, this oil hydraulic motor control loop also comprises an additional branches, between the outlet that one end of this additional branches is connected to this first one-way valve and the import of this diverter valve, and the other end of this additional branches is connected with a pressure switch, this pressure switch is for controlling the 3rd solenoid valve dead electricity.
5. hydraulic control system as claimed in claim 1, it is characterized in that, this hydraulic jack control loop also comprises one the 4th solenoid valve, between the top that one end of 4th solenoid valve is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, the other end of the 4th solenoid valve is connected between the bottom of the top of one of them working hole of this second solenoid valve and two working holes of this synchronized splitter combiner valve, and the 4th solenoid valve is two-position two-way solenoid valve.
6. hydraulic control system as claimed in claim 1, it is characterized in that, this hydraulic jack control loop also comprises one for detecting the second Pressure testing branch road of the pressure of the bottom of two these hydraulic jacks, between the top that one end of this second Pressure testing branch road is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, the other end of this second Pressure testing branch road is connected with one second pressure gauge.
7. hydraulic control system as claimed in claim 1, it is characterized in that, this hydraulic jack control loop also comprises one second off-load branch road, this the second off-load branch road comprises one second relief valve, the import of this second relief valve is connected between the bottom of one of them working hole of this second filler opening and this second solenoid valve, and the outlet of this second relief valve is connected to the bottom of another working hole of this fuel tank and this second solenoid valve.
8. as the hydraulic control system in claim 1-7 as described in any one, it is characterized in that, this hydraulic control system also comprises one for controlling the additional control loop that two these hydraulic jacks rise, between the outlet that one end of this additional control loop is connected to this first one-way valve and the import of this diverter valve, between the top that the other end is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks, and this additional control loop comprises the proportional flow control valve be connected in series, reduction valve and the 3rd one-way valve, wherein, between the top that the outlet of the 3rd one-way valve is connected to two working holes of this Pilot operated check valve and the bottom of two these hydraulic jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026338.4U CN204386971U (en) | 2015-01-14 | 2015-01-14 | For the hydraulic control system of snowslinger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026338.4U CN204386971U (en) | 2015-01-14 | 2015-01-14 | For the hydraulic control system of snowslinger |
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| Publication Number | Publication Date |
|---|---|
| CN204386971U true CN204386971U (en) | 2015-06-10 |
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| CN201520026338.4U Active CN204386971U (en) | 2015-01-14 | 2015-01-14 | For the hydraulic control system of snowslinger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327431A (en) * | 2017-08-31 | 2017-11-07 | 雷沃重工股份有限公司 | One kind shunting multichannel valve module |
| CN108131349A (en) * | 2018-02-07 | 2018-06-08 | 上海中驰自动控制技术有限公司 | The changeable single action circuit synchronous with series connection and its application method |
| CN112096675A (en) * | 2019-09-26 | 2020-12-18 | 上海圣克赛斯液压机械有限公司 | Hydraulic control system of coke guide |
-
2015
- 2015-01-14 CN CN201520026338.4U patent/CN204386971U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327431A (en) * | 2017-08-31 | 2017-11-07 | 雷沃重工股份有限公司 | One kind shunting multichannel valve module |
| CN108131349A (en) * | 2018-02-07 | 2018-06-08 | 上海中驰自动控制技术有限公司 | The changeable single action circuit synchronous with series connection and its application method |
| CN108131349B (en) * | 2018-02-07 | 2023-12-05 | 上海中驰自动控制技术有限公司 | Loop capable of switching single action and series synchronization and use method thereof |
| CN112096675A (en) * | 2019-09-26 | 2020-12-18 | 上海圣克赛斯液压机械有限公司 | Hydraulic control system of coke guide |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 600, changta Road, Songjiang District, Shanghai, 201617 Patentee after: Shanghai shengkesisi Hydraulic Co.,Ltd. Address before: 201600 No.81 Beiyang Road, Songjiang District, Shanghai Patentee before: SHANGHAI SUCCESS HYDRAULICS PRESS Co.,Ltd. |
|
| CP03 | Change of name, title or address |