CN205170223U - Full ground hoist chassis hang hydraulic control system - Google Patents
Full ground hoist chassis hang hydraulic control system Download PDFInfo
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- CN205170223U CN205170223U CN201520865010.1U CN201520865010U CN205170223U CN 205170223 U CN205170223 U CN 205170223U CN 201520865010 U CN201520865010 U CN 201520865010U CN 205170223 U CN205170223 U CN 205170223U
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Abstract
The utility model relates to a full ground hoist chassis hang hydraulic control system, including the oil tank and with the fuel feeding branch road of oil tank intercommunication, this fuel feeding branch road provides hydraulic oil through magenetic exchange valve group and with the energy storage ware of gas accuse switching -over valve intercommunication for all hydro -cylinders that hang, each energy storage ware all commutates the valve with the gas accuse of monogamy and communicates. The utility model has the advantages that: whole car goes up and down, can improve passage of the vehicle nature, if reduce the automobile body height when crossing culvert, tunnel, paddle or ground clearance etc. Is improved when traveling on cross -country road surface. And can realize whole car leveling.
Description
Technical field
The utility model relates to a kind of suspension hydraulic control system of full Terrain Cranes chassis.
Background technology
Known, steel spring is the elastic element as support and damping be most widely used in automotive suspension, but due to the restriction of structure design, is subject to severely restricts, reduces car load crossing ability when severe road conditions.This all terrain crane hangs and adopts hydro pneumatic suspension, has that volume is little, quality is light, load-carrying capacity by force, easily realizes bodywork height and regulates and have the feature such as damping vibration attenuation and self-lubricating concurrently.Adopt hydro pneumatic suspension can meet preferably all terrain crane on uneven road surface, field paddles the various applying working condition such as road surface, tilted road surface.On slope etc. during road conditions work, there is the function such as automatic leveling, the conversion of rigid elastic condition, avoid the roll-over accident etc. of automobile.
Summary of the invention
The purpose of this utility model is the suspension hydraulic control system providing a kind of full Terrain Cranes chassis.Adopt Oil-gas Separation back pressure type two-chamber hanging oil cylinder and energy storage as elastic element.Adopt hydro pneumatic suspension can meet preferably all terrain crane on uneven road surface, field paddles the various applying working condition such as road surface, tilted road surface.On slope etc. during road conditions work, there is the function such as automatic leveling, the conversion of rigid elastic condition, avoid the roll-over accident etc. of automobile.
The technical solution of the utility model is: the suspension hydraulic control system on full Terrain Cranes chassis, the fuel feeding branch road comprising fuel tank and be communicated with fuel tank, this fuel feeding branch road is by solenoid directional control valve group and the energy storage that is communicated with Pneumatic reversal valve for all hanging oil cylinder provide hydraulic oil, and the Pneumatic reversal valve that each energy storage is all corresponding with is communicated with; Two four-way electromagnetic reversing valves also comprising oil return branch road, two-bit triplet solenoid directional control valve and be communicated with two-bit triplet solenoid directional control valve, two two-bit triplet solenoid directional control valves and two four-way electromagnetic reversing valves were interconnected by communicating pipe, and two two-bit triplet solenoid directional control valves are all communicated with Pneumatic reversal valve with two four-way electromagnetic reversing valves; One end of described oil return branch road is communicated with solenoid directional control valve group, and the other end is communicated with fuel tank; Two two-bit triplet solenoid directional control valves are respectively the first two-bit triplet solenoid directional control valve and the second two-bit triplet solenoid directional control valve.
First fuel feeding branch road comprises the Hydraulic Pump, speed governing by pass valve, solenoid directional control valve, the first electromagnetic valve commutation group and the second solenoid directional control valve group that are communicated with fuel tank successively, second fuel feeding branch road comprises the hanging oil cylinder and Pneumatic reversal valve that are communicated with the first electromagnetic valve commutation group, the second electromagnetic valve commutation group, the A mouth of this solenoid directional control valve is communicated with the P mouth of the first electromagnetic valve commutation group and the P mouth of the second electromagnetic valve commutation group respectively, and the A mouth of this first electromagnetic valve change-over valve group is communicated with the rodless cavity of the first hanging oil cylinder and the second hanging oil cylinder; The B mouth of this first solenoid directional control valve group is communicated with the rod chamber of the 5th hanging oil cylinder and the 6th hanging oil cylinder respectively; The rod chamber of the first hanging oil cylinder and the second hanging oil cylinder is interconnected; The SP mouth of the first solenoid directional control valve group is communicated with two the first Pneumatic reversal valves and the second Pneumatic reversal valve be set up in parallel; The A mouth of the second described solenoid directional control valve group is communicated with the rodless cavity of the 5th hanging oil cylinder and the 6th hanging oil cylinder, and the B mouth of this second solenoid directional control valve group is communicated with the rod chamber of the first hanging oil cylinder with the second hanging oil cylinder; The SP mouth of the second solenoid directional control valve group is communicated with two the 3rd Pneumatic reversal valves and the 4th Pneumatic reversal valve be set up in parallel; The first described Pneumatic reversal valve is all communicated with described communicating pipe with the 4th Pneumatic reversal valve; Second Pneumatic reversal valve, the 3rd Pneumatic reversal valve, the tenth Pneumatic reversal valve, the 11 Pneumatic reversal valve are all communicated with two position four-way solenoid valves; The second described hanging oil cylinder is communicated with the 7th Pneumatic reversal valve, the 3rd hanging oil cylinder and the 4th hanging oil cylinder by the 5th Pneumatic reversal valve; 6th hanging oil cylinder is communicated with the 8th Pneumatic reversal valve, the 7th hanging oil cylinder and the 8th hanging oil cylinder by the 6th Pneumatic reversal valve; 3rd hanging oil cylinder is communicated with the rodless cavity of the 4th hanging oil cylinder, and the rodless cavity of the 7th hanging oil cylinder and the 8th hanging oil cylinder is communicated with; 7th Pneumatic reversal valve is also communicated with the 9th Pneumatic reversal valve and the tenth Pneumatic reversal valve that are set up in parallel, 8th Pneumatic reversal valve is also communicated with the 11 Pneumatic reversal valve and the 12 Pneumatic reversal valve that are set up in parallel, and the 8th described Pneumatic reversal valve is communicated with the rod chamber of the 3rd hanging oil cylinder and the 4th hanging oil cylinder; 7th Pneumatic reversal valve is communicated with the rod chamber of the 7th hanging oil cylinder and the 8th hanging oil cylinder; 9th Pneumatic reversal valve and the 12 Pneumatic reversal valve were communicated with communicating pipe; 7th Pneumatic valve, the 8th Pneumatic valve, the first solenoid directional control valve group, the second solenoid directional control valve group are communicated with the first described two-bit triplet solenoid directional control valve; 5th Pneumatic valve, the 6th Pneumatic valve are communicated with the second described two-bit triplet solenoid directional control valve.
Described oil return branch road comprises oil return pipe and oil return precision filter, the oil inlet of this oil return pipe is communicated with the T mouth of the first solenoid directional control valve group, the T mouth of the second solenoid directional control valve group respectively, the T mouth of solenoid directional control valve, the T mouth of speed governing by pass valve are all communicated with on oil return pipe, and the oil outlet end of this oil return pipe is communicated with fuel tank by fuel-displaced precision filter.
Oil-feed precision filter is communicated with between described Hydraulic Pump and fuel tank.
The utility model has the advantages that: four kinds of suspension statuses can be realized, be respectively resilient suspension, the lifting of rigid suspended, car load, car load leveling.When at highway, running on expressway, and during land locomotion, all vehicle bridge are resilient suspension.In this state, when vehicle travels at uneven road surface, be connected by the forward and backward of hanging oil cylinder rodless cavity, balance suspension form can be formed, ensure that all wheels all keep good contact with ground, bear load equably, when vehicle frame travels in flat road surface, interconnected by cross, left and right load change is substantially identical, left and right oil cylinder compensates mutually, the vibration that more effective decay wheel produces.The wheel weight change of Ackermann steer angle both sides is uneven, and cross-connect can make the equidirectional change of vehicle both sides wheel, reduces angle of roll, ensures the stability of vehicle when complex road surface travels or turn.When suspension is in rigid state, when can realize carrying crane by wheel and vehicle bridge lift-off ground and operation field hoisting crane at flat road surface band additional device low speed driving.Car load is elevated, and can improve the crossing ability of vehicle, as reduced bodywork height when crossing culvert, tunnel, paddle or cross-country road travels time improve ground Clearance etc.And car load leveling can be realized.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present utility model.
Detailed description of the invention
Further describe the utility model below in conjunction with specific embodiment, advantage and disadvantage of the present utility model will be more clear along with description.But these embodiments are only exemplary, do not form any restriction to scope of the present utility model.It will be understood by those skilled in the art that and do not departing under spirit and scope of the present utility model and can modify to the details of technical solutions of the utility model and form or replace, but these amendments and replacement all fall in protection domain of the present utility model.
See Fig. 1, the utility model relates to a kind of suspension hydraulic control system of full Terrain Cranes chassis, the fuel feeding branch road comprising fuel tank 1 and be communicated with fuel tank 1, this fuel feeding branch road (comprises the first Pneumatic reversal valve 18 by solenoid directional control valve group (comprising the first solenoid directional control valve group 36 and the second solenoid directional control valve group 37) and Pneumatic reversal valve, second Pneumatic reversal valve 19, 3rd Pneumatic reversal valve 20, 4th Pneumatic reversal valve 21, 5th Pneumatic reversal valve 16, 6th Pneumatic reversal valve 17, 7th Pneumatic reversal valve 22, 8th Pneumatic reversal valve 23, 9th Pneumatic reversal valve 24, tenth Pneumatic reversal valve 25, 11 Pneumatic reversal valve 26, 12 Pneumatic reversal valve 27) for all hanging oil cylinder provide hydraulic oil, the Pneumatic reversal valve that each energy storage is all corresponding with is communicated with, and is specially: the first Pneumatic reversal valve 18 be communicated with the first energy storage 28, the second Pneumatic reversal valve 19 be communicated with the second energy storage 29, the 3rd energy storage 30 be communicated with the 3rd Pneumatic reversal valve 20, the 4th energy storage 31 be communicated with the 4th Pneumatic reversal valve 21, the 5th energy storage 32 be communicated with the 9th Pneumatic reversal valve 24, the 6th energy storage 33 be communicated with the tenth Pneumatic reversal valve 25, the 7th energy storage 34 be communicated with the 11 Pneumatic reversal valve 26, the 8th energy storage 35 be communicated with the 12 Pneumatic reversal valve 27.
Two four-way electromagnetic reversing valves also comprising oil return branch road, two-bit triplet solenoid directional control valve and be communicated with two-bit triplet solenoid directional control valve, two two-bit triplet solenoid directional control valves (first two-bit triplet solenoid directional control valve 7.1 and the second two-bit triplet solenoid directional control valve 7.2) and two four-way electromagnetic reversing valves were interconnected by communicating pipe, and two two-bit triplet solenoid directional control valves are all communicated with Pneumatic reversal valve with two four-way electromagnetic reversing valves; One end of described oil return branch road is communicated with solenoid directional control valve group, and the other end is communicated with fuel tank 1.All hanging oil cylinder comprise the first hanging oil cylinder 8, second hanging oil cylinder 9, the 3rd hanging oil cylinder 10, the 4th hanging oil cylinder 11, the 5th hanging oil cylinder 12, the 6th hanging oil cylinder 13, the 7th hanging oil cylinder 14, the 8th hanging oil cylinder 15;
First fuel feeding branch road comprises the Hydraulic Pump 3, speed governing by pass valve 4, solenoid directional control valve 5, first electromagnetic valve commutation group 36 and the second solenoid directional control valve group 37 that are communicated with fuel tank successively, second fuel feeding branch road comprises the hanging oil cylinder and Pneumatic reversal valve that are communicated with the first electromagnetic valve commutation group, the second electromagnetic valve commutation group, the A mouth of this solenoid directional control valve 5 is communicated with the P mouth of the first electromagnetic valve commutation group 36 and the P mouth of the second electromagnetic valve commutation group 37 respectively, and the A mouth of this first electromagnetic valve change-over valve group 36 is communicated with the rodless cavity of the first hanging oil cylinder 8 and the second hanging oil cylinder 8; The B mouth of this first solenoid directional control valve group 36 is communicated with the rod chamber of the 5th hanging oil cylinder 12 and the 6th hanging oil cylinder 16 respectively; The rod chamber of the first hanging oil cylinder 8 and the second hanging oil cylinder 9 is interconnected; The SP mouth of the first solenoid directional control valve group 36 is communicated with two the first Pneumatic reversal valve 18 and the second Pneumatic reversal valves 19 be set up in parallel; The A mouth of the second described solenoid directional control valve group 37 is communicated with the rodless cavity of the 5th hanging oil cylinder 12 and the 6th hanging oil cylinder, and the B mouth of this second solenoid directional control valve group 37 is communicated with the rod chamber of the first hanging oil cylinder 8 with the second hanging oil cylinder 9; The SP mouth of the second solenoid directional control valve group is communicated with two the 3rd Pneumatic reversal valves 20 and the 4th Pneumatic reversal valve 21 be set up in parallel; The first described Pneumatic reversal valve 18 is all communicated with described communicating pipe with the 4th Pneumatic reversal valve 21; Second Pneumatic reversal valve 19, the 3rd Pneumatic reversal valve 20, the tenth Pneumatic reversal valve the 25, the 11 Pneumatic reversal valve 26 are all communicated with two position four-way solenoid valves 6; The second described hanging oil cylinder 9 is communicated with the 7th Pneumatic reversal valve 22, the 3rd hanging oil cylinder 10 and the 4th hanging oil cylinder 11 by the 5th Pneumatic reversal valve 16; 6th hanging oil cylinder 13 is communicated with the 8th Pneumatic reversal valve 23, the 7th hanging oil cylinder 14 and the 8th hanging oil cylinder 15 by the 6th Pneumatic reversal valve 17; 3rd hanging oil cylinder 10 is communicated with the rodless cavity of the 4th hanging oil cylinder 11, and the rodless cavity of the 7th hanging oil cylinder 14 and the 8th hanging oil cylinder 15 is communicated with; 7th Pneumatic reversal valve 22 is also communicated with the 9th Pneumatic reversal valve 24 and the tenth Pneumatic reversal valve 25 that are set up in parallel, 8th Pneumatic reversal valve 23 is also communicated with the 11 Pneumatic reversal valve the 26 and the 12 Pneumatic reversal valve 27 be set up in parallel, and the 8th described Pneumatic reversal valve 23 is communicated with the rod chamber of the 3rd hanging oil cylinder 10 and the 4th hanging oil cylinder 11; 7th Pneumatic reversal valve 22 is communicated with the rod chamber of the 7th hanging oil cylinder 14 and the 8th hanging oil cylinder 15; 9th Pneumatic reversal valve the 24 and the 12 Pneumatic reversal valve 27 was communicated with communicating pipe; 7th Pneumatic valve 22, the 8th Pneumatic valve 23, first solenoid directional control valve group 36, second solenoid directional control valve group 37 are communicated with the first described two-bit triplet solenoid directional control valve 7.1; 5th Pneumatic valve 16, the 6th Pneumatic valve 17 are communicated with the second described two-bit triplet solenoid directional control valve 7.2.
Described oil return branch road comprises oil return pipe and oil return precision filter 2.2, the oil inlet of this oil return pipe is communicated with the T mouth of the first solenoid directional control valve group 36, the T mouth of the second solenoid directional control valve group 37 respectively, the T mouth of solenoid directional control valve 5, the T mouth of speed governing by pass valve 4 are all communicated with on oil return pipe, and the oil outlet end of this oil return pipe is communicated with fuel tank 1 by fuel-displaced precision filter 2.2.
Oil-feed precision filter 2.2 is communicated with between described Hydraulic Pump 31 and fuel tank.
Principle of work of the present utility model is as follows:
When the full Terrain Cranes of needs is in elastic stage, connect operator's compartment elastic stage switch, first gas control direction valve ~ the 4th Pneumatic reversal valve is connected by two-position four-way solenoid valve 6 under the effect of pressurized air air pressure, makes each self-closing of SP mouth with the first energy storage be connected separately ~ the 4th energy storage and the first solenoid directional control valve group 36, second solenoid directional control valve group 37.
The Pneumatic reversal valve of the first solenoid directional control valve group 36 inside is connected by the second two-bit triplet electromagnetic valve 7.2 under the effect of pressurized air air pressure, thus the A mouth of the first solenoid directional control valve group 36, B mouth, SP mouth are connected, and M is pressure measurement interface.The A mouth of the first solenoid directional control valve group 36 is communicated with the rodless cavity of the first hanging oil cylinder 8, second hanging oil cylinder 9, and B mouth is communicated with the 5th hanging oil cylinder 12 of vehicle bridge offside, the rod chamber of the 6th hanging oil cylinder 13.
The Pneumatic reversal valve of the second solenoid directional control valve group 37 inside is connected by the first two-bit triplet electromagnetic valve 7.1 under the effect of pressurized air air pressure simultaneously, thus the A mouth of the second solenoid directional control valve group 37, B mouth, SP mouth are connected, and M is pressure measurement interface.The A mouth of the second solenoid directional control valve group 37 is communicated with the rodless cavity of the 5th hanging oil cylinder 12, the 6th hanging oil cylinder 13, and B mouth is communicated with the rod chamber of the first hanging oil cylinder 8, second hanging oil cylinder 9 of vehicle bridge offside.
Thus make the 5th hanging oil cylinder 12 of the rodless cavity of bridge first hanging oil cylinder 8, second hanging oil cylinder 9, rod chamber oil pocket and vehicle bridge opposite side, the rod chamber of the 6th hanging oil cylinder 13, rodless cavity interconnect, and be connected with respective energy storage.All terrain crane oil cylinder is made to form cross interconnection, mutual compensating form.
Meanwhile the 9th gas control direction valve 24 ~ the 12 Pneumatic reversal valve 27 is connected by two-position four-way solenoid valve 6 under the effect of pressurized air air pressure, makes self-closing each with the energy storage be connected separately.7th Pneumatic reversal valve 22, the 8th Pneumatic reversal valve 23 are connected by the first two-bit triplet electromagnetic valve 7.1 under the effect of pressurized air air pressure, and the 5th Pneumatic reversal valve 16, the 6th Pneumatic reversal valve 17 are connected by the second two-bit triplet electromagnetic valve 7.2 under the effect of pressurized air air pressure.
Thus make to interconnect before and after the rodless cavity of system first hanging oil cylinder ~ the 4th hanging oil cylinder, and the 5th hanging oil cylinder of vehicle bridge opposite side ~ the 8th hanging oil cylinder rodless cavity before and after interconnect, be connected by the forward and backward of hanging oil cylinder rodless cavity, balance suspension form can be formed, ensure that all wheels all keep good contact with ground, bear load equably.
When the full Terrain Cranes of needs is in rigid state, connect cab rigid mode switch, by two-position four-way solenoid valve 6, first two-bit triplet electromagnetic valve 7.1, second two-bit triplet electromagnetic valve 7.2 by the first solenoid directional control valve group 36, second solenoid directional control valve group 37 and the 5th gas control direction valve 16 ~ the 12 Pneumatic reversal valve 27 Close All, cut off the connection oil circuit between all energy storages and hanging oil cylinder, energy storage is followed the string, suspension oil cylinder direct supported cart body quality and working load thereof.
When the full Terrain Cranes of needs is in car load jacking condition, connect operator's compartment car load direction switch.By two-position four-way solenoid valve 6, first two-bit triplet electromagnetic valve 7.1, second two-bit triplet electromagnetic valve 7.2, the Pneumatic reversal valve of the first solenoid directional control valve group 36, second solenoid directional control valve group 37 and the 5th gas control direction valve 16 ~ the 12 Pneumatic reversal valve 27 are all connected, interconnect before and after the rodless cavity of now the first hanging oil cylinder the 8 ~ four hanging oil cylinder 11, and interconnect before and after the rodless cavity of the 5th hanging oil cylinder of vehicle bridge opposite side ~ the 8th hanging oil cylinder.
Connect the 4DT of the first solenoid directional control valve group 36 inside, hydraulic oil is under Hydraulic Pump effect, the P mouth of the first solenoid directional control valve group 36 is entered by solenoid directional control valve, speed governing by pass valve group, P mouth communicates with A mouth, SP mouth, make fluid enter the rodless cavity of the first hanging oil cylinder 8 ~ the first hanging oil cylinder 11, also have part fluid to enter homonymy and to be connected energy storage.The fluid of the 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 rod chamber communicates with the rodless cavity of opposite side first hanging oil cylinder ~ the 4th hanging oil cylinder and energy storage through the B mouth of the first solenoid directional control valve group 36, like this, the oil liquid pressure in the upper and lower chamber of the 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 is equal, 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 piston rod is under differential action, overcome the vehicle body suspended mass application force of the 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 supporting, move up, reach the object adjusting upward bodywork height.
When needs reduce bodywork height, the oil return inlet T mouth of the first solenoid directional control valve group 36 can be connected, close the oil inlet P mouth of solenoid directional control valve group 36 simultaneously, now under the effect of body quality gravity, the fluid of hanging oil cylinder rodless cavity flows back to fuel tank automatically by flow regulating valve, oil return solenoid directional control valve, and bodywork height is adjusted downwards.
When the full Terrain Cranes of needs carries out car load leveling, connect car load automatic leveling switch in operator's compartment, sensor in 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 starts the relative position detecting cylinder bar and cylinder barrel, and then regulates corresponding hydraulic actuating cylinder to reach the object to car load leveling.5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 protecting sleeve is arranged symmetrically with approach switch sensor and lower approach switch sensor.When the upper edge of cylinder barrel is between upper sensor and lower sensor, the 5th hanging oil cylinder the 12 ~ eight hanging oil cylinder 15 is hung oil cylinder and is in bit positions; In suspension oil cylinder leveling process, when upper sensor and lower sensor all can't detect signal, hanging oil cylinder is too high, needs to connect oil return change-over valve, reduces oil cylinder height; When upper sensor and lower sensor all detect signal, hanging oil cylinder is too low, needs connection first solenoid directional control valve group 36, second solenoid directional control valve 37, improve oil cylinder height, when upper sensor can't detect signal, and when lower sensor detects signal, hanging oil cylinder is in meta.This process moves in circles, until oil cylinder reaches state of equilibrium, thus reaches the object of car load leveling.
Claims (4)
1. the suspension hydraulic control system on a full Terrain Cranes chassis, it is characterized in that, the fuel feeding branch road comprising fuel tank and be communicated with fuel tank, this fuel feeding branch road is by solenoid directional control valve group and the energy storage that is communicated with Pneumatic reversal valve for all hanging oil cylinder provide hydraulic oil, and the Pneumatic reversal valve that each energy storage is all corresponding with is communicated with; Two four-way electromagnetic reversing valves also comprising oil return branch road, two-bit triplet solenoid directional control valve and be communicated with two-bit triplet solenoid directional control valve, two two-bit triplet solenoid directional control valves and two four-way electromagnetic reversing valves were interconnected by communicating pipe, and two two-bit triplet solenoid directional control valves are all communicated with Pneumatic reversal valve with two four-way electromagnetic reversing valves; One end of described oil return branch road is communicated with solenoid directional control valve group, and the other end is communicated with fuel tank; Two two-bit triplet solenoid directional control valves are respectively the first two-bit triplet solenoid directional control valve and the second two-bit triplet solenoid directional control valve.
2. the suspension hydraulic control system on full Terrain Cranes chassis according to claim 1, it is characterized in that, first fuel feeding branch road comprises the Hydraulic Pump be communicated with fuel tank successively, speed governing by pass valve, solenoid directional control valve, first electromagnetic valve commutation group and the second solenoid directional control valve group, second fuel feeding branch road comprises and the first electromagnetic valve commutation group, the hanging oil cylinder that second electromagnetic valve commutation group is communicated with and Pneumatic reversal valve, the A mouth of this solenoid directional control valve is communicated with the P mouth of the first electromagnetic valve commutation group and the P mouth of the second electromagnetic valve commutation group respectively, the A mouth of this first electromagnetic valve change-over valve group is communicated with the rodless cavity of the first hanging oil cylinder and the second hanging oil cylinder, the B mouth of this first solenoid directional control valve group is communicated with the rod chamber of the 5th hanging oil cylinder and the 6th hanging oil cylinder respectively, the rod chamber of the first hanging oil cylinder and the second hanging oil cylinder is interconnected, the SP mouth of the first solenoid directional control valve group is communicated with two the first Pneumatic reversal valves and the second Pneumatic reversal valve be set up in parallel, the A mouth of the second described solenoid directional control valve group is communicated with the rodless cavity of the 5th hanging oil cylinder and the 6th hanging oil cylinder, and the B mouth of this second solenoid directional control valve group is communicated with the rod chamber of the first hanging oil cylinder with the second hanging oil cylinder, the SP mouth of the second solenoid directional control valve group is communicated with two the 3rd Pneumatic reversal valves and the 4th Pneumatic reversal valve be set up in parallel, the first described Pneumatic reversal valve is all communicated with described communicating pipe with the 4th Pneumatic reversal valve, second Pneumatic reversal valve, the 3rd Pneumatic reversal valve, the tenth Pneumatic reversal valve, the 11 Pneumatic reversal valve are all communicated with two position four-way solenoid valves, the second described hanging oil cylinder is communicated with the 7th Pneumatic reversal valve, the 3rd hanging oil cylinder and the 4th hanging oil cylinder by the 5th Pneumatic reversal valve, 6th hanging oil cylinder is communicated with the 8th Pneumatic reversal valve, the 7th hanging oil cylinder and the 8th hanging oil cylinder by the 6th Pneumatic reversal valve, 3rd hanging oil cylinder is communicated with the rodless cavity of the 4th hanging oil cylinder, and the rodless cavity of the 7th hanging oil cylinder and the 8th hanging oil cylinder is communicated with, 7th Pneumatic reversal valve is also communicated with the 9th Pneumatic reversal valve and the tenth Pneumatic reversal valve that are set up in parallel, 8th Pneumatic reversal valve is also communicated with the 11 Pneumatic reversal valve and the 12 Pneumatic reversal valve that are set up in parallel, and the 8th described Pneumatic reversal valve is communicated with the rod chamber of the 3rd hanging oil cylinder and the 4th hanging oil cylinder, 7th Pneumatic reversal valve is communicated with the rod chamber of the 7th hanging oil cylinder and the 8th hanging oil cylinder, 9th Pneumatic reversal valve and the 12 Pneumatic reversal valve were communicated with communicating pipe, 7th Pneumatic valve, the 8th Pneumatic valve, the first solenoid directional control valve group, the second solenoid directional control valve group are communicated with the first described two-bit triplet solenoid directional control valve, 5th Pneumatic valve, the 6th Pneumatic valve are communicated with the second described two-bit triplet solenoid directional control valve.
3. the suspension hydraulic control system on full Terrain Cranes chassis according to claim 1, it is characterized in that, described oil return branch road comprises oil return pipe and oil return precision filter, the oil inlet of this oil return pipe is communicated with the T mouth of the first solenoid directional control valve group, the T mouth of the second solenoid directional control valve group respectively, the T mouth of solenoid directional control valve, the T mouth of speed governing by pass valve are all communicated with on oil return pipe, and the oil outlet end of this oil return pipe is communicated with fuel tank by fuel-displaced precision filter.
4. the suspension hydraulic control system on full Terrain Cranes chassis according to claim 2, is characterized in that, be communicated with oil-feed precision filter between described Hydraulic Pump and fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865010.1U CN205170223U (en) | 2015-11-02 | 2015-11-02 | Full ground hoist chassis hang hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865010.1U CN205170223U (en) | 2015-11-02 | 2015-11-02 | Full ground hoist chassis hang hydraulic control system |
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| Publication Number | Publication Date |
|---|---|
| CN205170223U true CN205170223U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520865010.1U Active CN205170223U (en) | 2015-11-02 | 2015-11-02 | Full ground hoist chassis hang hydraulic control system |
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| CN (1) | CN205170223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065497A (en) * | 2019-05-24 | 2019-07-30 | 徐工集团工程机械股份有限公司科技分公司 | A kind of high low speed automatic switching control system of high-speed loading machine |
| CN110303845A (en) * | 2019-05-31 | 2019-10-08 | 中国北方车辆研究所 | A kind of rocker arm suspension back pressure chamber carrying buffer unit |
| CN111927837A (en) * | 2020-07-24 | 2020-11-13 | 泰安航天特种车有限公司 | Hydro-pneumatic suspension lifting hydraulic system and lifting method |
-
2015
- 2015-11-02 CN CN201520865010.1U patent/CN205170223U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065497A (en) * | 2019-05-24 | 2019-07-30 | 徐工集团工程机械股份有限公司科技分公司 | A kind of high low speed automatic switching control system of high-speed loading machine |
| CN110303845A (en) * | 2019-05-31 | 2019-10-08 | 中国北方车辆研究所 | A kind of rocker arm suspension back pressure chamber carrying buffer unit |
| CN111927837A (en) * | 2020-07-24 | 2020-11-13 | 泰安航天特种车有限公司 | Hydro-pneumatic suspension lifting hydraulic system and lifting method |
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