CN201827172U - Supercharging latching hydraulic buffer system - Google Patents
Supercharging latching hydraulic buffer system Download PDFInfo
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- CN201827172U CN201827172U CN2010202761714U CN201020276171U CN201827172U CN 201827172 U CN201827172 U CN 201827172U CN 2010202761714 U CN2010202761714 U CN 2010202761714U CN 201020276171 U CN201020276171 U CN 201020276171U CN 201827172 U CN201827172 U CN 201827172U
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Abstract
The utility model relates to a supercharging latching hydraulic buffer system belonging to the hydraulic buffer system. The supercharging latching hydraulic buffer system comprises a hydraulic cylinder and an oil storage tank. The hydraulic cylinder comprises a cylinder jacket, a piston, and a piston rod. The piston can divide the hydraulic cylinder into a first chamber and a second chamber. The first chamber and the oil storage tank are communicated with a first oil exhaust way and a first oil absorption way. The second chamber and the oil storage tank are communicated with a second oil exhaust way and a second oil absorption way. The supercharging latching hydraulic buffer system also comprises at least an overflow valve, at least an electromagnetic valve and at least a hydraulic damping. The overflow valve and the electromagnetic valve are in a parallel connection in the first and the second oil exhaust ways. The utility model has advantages of smart design, simple, and tight structure, low fault rate, good buffer effect, resistance buffer effect, which is proportional to the cornering speed of the vehicle by setting the constant value of the hydraulic damping, and functions of super angle latching and safe protection through the overflow valve.
Description
Technical field
The utility model relates to vehicle damping shock absorption control system technical field, relates in particular to a kind of supercharging locking hydraulic buffer system.
Background technique
Along with developing rapidly of China auto manufacturing, various vehicle manufacturing industry are also being advanced by leaps and bounds, and characteristics such as articulated bus is big with its handling capacity of passengers, utilization factor height big and medium-sized cities at home obtain promoting gradually.Articulated coach generally is made up of the chassis articulated system in compartment before and after compartment, front and back and the connection, wherein the hydraulic buffer system in the articulated system of chassis is the key factor of restriction articulator performance, in the prior art, the hydraulic buffer system of articulated coach is generally by two oil hydraulic cylinders, hydraulic controller and electric control system are formed, oil hydraulic cylinder is by the size of its output resistance of hydraulic controller control change, electric control system signals to hydraulic controller according to the turn inside diameter angle, make the different force value of its conversion, disclose a kind of the rotation as Chinese patent CN201086607 and controlled hydraulic damping by mandrel, thereby the damping of conversion buffering hydraulic control system, though this control system can form different dampings according to the variation of vehicle angle, before preventing, back car shearing aspect plays positive effect, but the mandrel structure is complicated, the requirement on machining accuracy height, cost is higher, and installation connects miscellaneous, it is big to take up room, and also leakage of oil can occur, shortcomings such as the stuck or electrical malfunction of spool.
Simultaneously, because hydraulic damping of the prior art system, cushioning effect is undesirable, especially use in articulated bus, if damping buffering can not be effectively controlled, the driver during particularly big turning, tends to have an accident because angle of turn is much when driving articulator, causes personnel's the injures and deaths and the loss of property.
The model utility content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art; a kind of simple and practical supercharging locking hydraulic buffer system is provided; the utility model designs compactness ingenious, simple for structure, cost of production is low, easy to maintenance; good buffer effect; by being provided with the definite value hydraulic damping; play the resistance buffer function that is directly proportional with turn inside diameter speed, relief valve the function that can make vehicle possess super angle locking and safety protection is set.
To achieve these goals, the utility model provides a kind of supercharging locking hydraulic buffer system, comprise oil hydraulic cylinder and fuel reserve tank, described oil hydraulic cylinder comprises cylinder sleeve, piston and piston rod, described piston is divided into first chamber and second chamber with oil hydraulic cylinder, described first chamber is communicated with the first oil extraction oil circuit and first oil suction line with described fuel reserve tank, described second chamber is communicated with the second oil extraction oil circuit and second oil suction line with described fuel reserve tank, described supercharging locking hydraulic buffer system also comprises at least one relief valve, at least one solenoid valve and at least one hydraulic damping, described relief valve and described solenoid valve are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, and described at least one hydraulic damping is connected and/or is connected in parallel in the first oil extraction oil circuit and the second oil extraction oil circuit.
Preferably, described supercharging locking hydraulic buffer system also comprises first one-way valve, second one-way valve, the 3rd one-way valve and the 4th one-way valve, described first one-way valve is connected in the first oil extraction oil circuit, described second one-way valve is connected in the described second oil extraction oil circuit, described first chamber, the 3rd one-way valve and described fuel reserve tank are formed first oil suction line, and described second chamber, the 4th one-way valve and described fuel reserve tank are formed second oil suction line.
Preferably, described supercharging locking hydraulic buffer system comprises first hydraulic damping, second hydraulic damping, the 3rd hydraulic damping, first solenoid valve, second solenoid valve and first relief valve, described second solenoid valve and described first hydraulic damping are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the downstream of described second solenoid valve and described first hydraulic pressure resistance after described first solenoid valve and the described first relief valve parallel connection, described first chamber, second hydraulic damping, first one-way valve, first hydraulic damping/second solenoid valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, the 3rd hydraulic damping, second one-way valve, first hydraulic damping/second solenoid valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
Preferably, described supercharging locking hydraulic buffer system comprises first hydraulic damping, first solenoid valve and first relief valve, described first hydraulic damping is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the described first hydraulic damping downstream after described first solenoid valve and the first relief valve parallel connection, described first chamber, first one-way valve, first hydraulic damping, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, second one-way valve, first hydraulic damping, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
Preferably, described supercharging locking hydraulic buffer system comprises first solenoid valve, first relief valve and second relief valve, described second relief valve is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the described second relief valve downstream after described first solenoid valve and the first relief valve parallel connection, described first chamber, first one-way valve, described second relief valve, first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, second one-way valve, described second relief valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
More preferably, described supercharging locking hydraulic buffer system also comprise first near switch and/or second near switch, described first is electrically connected with described second solenoid valve near switch, described second is electrically connected with described first solenoid valve near switch.
More preferably, described oil hydraulic cylinder also comprises the first chamber integrated package and the second chamber integrated package, and the described first chamber integrated package and the second chamber integrated package are located at the sealed at both ends described cylinder sleeve of described cylinder sleeve respectively.
Preferably, the described oil hydraulic cylinder outside also comprises shell, and described cylinder sleeve, described shell and the described first chamber integrated package, the second chamber integrated package constitute fuel reserve tank.
More preferably, described first one-way valve, the 3rd one-way valve and second hydraulic damping are arranged in the described first chamber integrated package; Described first solenoid valve, second solenoid valve, second one-way valve, the 4th one-way valve, the 3rd hydraulic damping, first hydraulic damping and relief valve are arranged in the described second chamber integrated package, and be simple and compact for structure, the level of integration height.。
More preferably, described supercharging locking hydraulic buffer system also comprises pressure transducer, described pressure transducer is arranged on described first hydraulic damping or the second relief valve upstream, described pressure transducer is electrically connected warning device, oil pressure in the described first oil extraction oil circuit and the second oil extraction oil circuit is measured, guaranteed cushioning effect.
The utlity model has following beneficial effect:
1. pressure control is simple, does not need electrical control or rotational valve core can produce the buffering resistance, can not occur leakage of oil basically, spool is stuck and electrical malfunction etc., greatly reduces rate of fault; Simultaneously the hydraulic cushion that is directly proportional with turn inside diameter speed power can be provided, when big the turning, super angle locking and safety protection function can also be played.
2. low cost of manufacture need not used expensive hydraulic proportion valve or make the high rotary valve of machining accuracy, greatly reduces manufacture cost, has improved the competitive ability on market.
3. simple in structure, have good interchangeability, especially in articulated coach, left hydraulic cylinder and right oil hydraulic cylinder be symmetry each other, and other structures and components and parts are just the same.
4. easy to install and use, after the utility model refuels through assembling and through unique oiling technology, be installed on the articulated system easily, only need be installed to oil cylinder on the frame, do not need other to be installed again as oil pipe, component such as pipe joint.
Description of drawings:
Fig. 1 is the utility model supercharging locking hydraulic buffer system first embodiment's oil circuit control principle system diagram
Fig. 2 is to use chassis of the present utility model articulated system assembly plan view
Fig. 3 is the utility model supercharging locking hydraulic buffer system second embodiment's oil circuit control principle system diagram
Fig. 4 is the utility model supercharging locking hydraulic buffer system the 3rd embodiment's oil circuit control principle system diagram
Fig. 5 is the utility model supercharging locking hydraulic buffer system stereogram
Fig. 6 is the first integrated package stereogram in the utility model supercharging locking hydraulic buffer system
Fig. 7 is second integrated package, first stereogram in the utility model supercharging locking hydraulic buffer system
Fig. 8 is second integrated package, second stereogram in the utility model supercharging locking hydraulic buffer system
Fig. 9 is the utility model supercharging locking hydraulic buffer system sectional view
Figure 10 is an A portion enlarged view among Fig. 9
Embodiment:
As Fig. 1-shown in Figure 10, the utility model relates to a kind of supercharging locking hydraulic buffer system, comprise oil hydraulic cylinder 1 and fuel reserve tank 4, described oil hydraulic cylinder 1 comprises piston 2, piston rod 3 and cylinder sleeve 7, described piston 2 slidably is arranged in the oil hydraulic cylinder 1, and oil hydraulic cylinder 1 is divided into first chamber 5 and second chamber 6, described piston 2 is fixedlyed connected with piston rod 3, and described pressurization hydraulic buffer system also comprises at least one relief valve (51,52), at least one solenoid valve (41,42), at least one hydraulic damping (23,21,22) and four one-way valves (31,32,33,34);
Described first chamber 5, the 3rd one-way valve 33 and described fuel reserve tank 4 are formed first oil suction line, and described second chamber 6, the 4th one-way valve 34 and described fuel reserve tank 4 are formed second oil suction line; Described first chamber 5, first one-way valve 31 and the described fuel reserve tank 4 pipeline connections first oil extraction oil circuit, described second chamber 6, second one-way valve 32 and the described fuel reserve tank 4 pipeline connections second oil extraction oil circuit; First relief valve 51 and first solenoid valve 42 are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, series connection and/or at least one hydraulic damping in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit.
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
Fig. 1 is the utility model supercharging locking hydraulic buffer system preferred embodiment oil circuit control principle system diagram, comprise four one-way valves (31,32,33,34), three hydraulic dampings (23,21,22), two solenoid valves (41,42) and first relief valve 51, second solenoid valve 41 and first hydraulic damping 23 are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the downstream of described second solenoid valve 41 and first hydraulic damping 23 after first solenoid valve 42 and 51 parallel connections of described first relief valve, described first chamber 5, second hydraulic damping 21, first one-way valve 31, first hydraulic damping, 23/ second solenoid valve 41, described first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the first oil extraction oil circuit successively; Described second chamber 6, the 3rd hydraulic damping 22, the second one-way valves 32, first hydraulic damping, 23/ second solenoid valve 41, described first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the second oil extraction oil circuit successively.Basic damping is finished in described second hydraulic damping 21 and the 3rd hydraulic damping 22,23 damping function of increasing pressure of described first hydraulic damping, the resistance buffer function that above-mentioned three definite value hydraulic dampings can make compression speed be directly proportional with the damping reaction; Described first relief valve 51 can preestablish force value, and when hydraulic fluid pressure during greater than setup pressure value, first relief valve 51 can be opened pressure release automatically, prevents that excessive the causing of hydraulic system internal pressure from leaking or explosion, plays the safety protection effect.
Preferably, described supercharging locking hydraulic buffer system also comprise first near switch and second near the switch (not shown), described first is electrically connected with described second solenoid valve 41 near switch, and described second is electrically connected with described first solenoid valve 42 near switch.
As shown in Figure 1, when oil hydraulic cylinder 1 power contraction by compression, piston 2 moves to first chamber 5, in first chamber 5, hydraulic oil by compression, pressure is with speed by compression or increase soon or slowly, through second hydraulic damping 21 time, hydraulic oil is discharged more or less, the compressive force that oil hydraulic cylinder 1 is subjected to is big more, shrinks soon more, and the oil mass of need discharging is just many more, the resistance that oil hydraulic cylinder 1 produces is just big more, plays basic damping function; After producing pressure difference through second hydraulic damping 21, hydraulic oil is opened first one-way valve 31, because first hydraulic damping, 23 resistances are bigger, hydraulic oil can flow to fuel reserve tank 4 by second solenoid valve 41 and first solenoid valve 42 behind first one-way valve 31, when continuing to move left to certain position along with piston 5, first controls second solenoid valve 41 near the switch (not shown) closes, hydraulic oil flows to fuel reserve tank 4 through first hydraulic damping 23 and first solenoid valve 42, when flowing through first hydraulic damping 23, oil pressure supercharging once more in first chamber 5 and the first oil extraction oil circuit, damping in the oil hydraulic cylinder 1 continues to increase, and improves cushioning effect.
When piston 5 continues to move to left; automatical control system outside the utility model can be given the excess of export angle signal; second controls first solenoid valve 42 near the switch (not shown) closes; hydraulic oil can only flow to first relief valve 51 after through first hydraulic damping 23; along with the pressure in first chamber 5 and the first oil extraction oil circuit increases; when oil pressure reaches the force value of first relief valve, 51 predetermined set; first relief valve 51 can be opened pressure release automatically; after pressure was reduced to preset pressure value, first relief valve 51 cut out automatically, at this moment; reason owing to pressure difference; stop piston 2 to continue to move to left, piston can move to right and reset, and finishes locking and safety protection function.
In the first oil extraction oil circuit oil extraction process, along with second chamber, 6 internal volumes increase, the oil in the fuel reserve tank 4 can guarantee that second chamber, 6 interior oil are full state through the repairing in second chambeies 6 of the 4th one-way valve 34, finishes the oil-absorbing process of second oil suction line.
When oil hydraulic cylinder 1 stretched, promptly piston 2 moved to second chamber 6, and in second chamber 6, hydraulic oil is power by compression, and pressure increases gradually, and also with the increase of pressure, the hydraulic oil of discharge increases hydraulic oil, strengthened damping, finished basic damping function; Hydraulic oil is through the 3rd hydraulic damping 22, after producing pressure difference, hydraulic oil is opened second one-way valve 32, because second solenoid valve 41 is open modes, hydraulic oil can flow to fuel reserve tank 4 by second solenoid valve 41 and first solenoid valve 42 behind first one-way valve 31, when continuing to be shifted to the right to certain position along with piston 5, first controls second solenoid valve 41 near the switch (not shown) closes, hydraulic oil flows to fuel reserve tank 4 through first hydraulic damping 23 and first solenoid valve 42, when flowing through first hydraulic damping 23, oil pressure supercharging once more in first chamber 5 and the first oil extraction oil circuit, the damping in the oil hydraulic cylinder 1 continue to increase, and improve cushioning effect.
When piston 2 continues to move to right; automatical control system outside the utility model can be given the excess of export angle signal; second controls first solenoid valve 42 near the switch (not shown) closes; hydraulic oil flows to first relief valve 51 after through first hydraulic damping 23; along with the pressure in first chamber 5 and the first oil extraction oil circuit increases; when oil pressure reaches the force value of first relief valve, 51 predetermined set; first relief valve 51 can be opened pressure release automatically; after pressure was reduced to preset pressure value, first relief valve 51 cut out automatically, at this moment; reason owing to pressure difference; stop piston 2 to continue to move to right, piston can move to left and reset, and finishes locking and safety protection function.
In the second oil extraction oil circuit oil extraction process, along with first chamber, 5 internal volumes increase, oil in the fuel reserve tank 4 and the high pressure oil in the first oil extraction oil circuit can guarantee that first chamber, 5 interior oil are full state through the repairing in first chambeies 5 of the 3rd one-way valve 33, finish the oil-absorbing process of first oil suction line.
In the reality, first can be provided with in place as required near the switch and second position near switch, in this specific embodiment, first is arranged on side arm assembly and after-frame assembly joint near switch and second near switch, be subjected to the electric control system controls outside this supercharging locking hydraulic buffer system, when piston 2 is positioned at the neutral position and is not triggered near switch, second solenoid valve 41 and first solenoid valve 42 all are in open mode, when vehicle left-hand rotation or right-hand rotation several angle, can control corresponding solenoid valve near switch and close or open.
Further, use articulated coach hydraulic buffer system of the present utility model to use the left hydraulic cylinder 11 and the right oil hydraulic cylinder 12 of symmetry each other, as shown in Figure 2, described left hydraulic cylinder 11 is connected side arm assembly 13 and after-frame assembly 14 respectively with right oil hydraulic cylinder 12 two ends, work as Ackermann steer angle, must there be an oil hydraulic cylinder to stretch, and another oil hydraulic cylinder compression.When articulator was kept straight on, the piston of left hydraulic cylinder 11 and right oil hydraulic cylinder 12 all was in the neutral position, and this moment, first chamber and second chamber of two oil hydraulic cylinders all were full of hydraulic oil.
When vehicle turns left, left hydraulic cylinder 11 is compressed power and shrinks, right oil hydraulic cylinder 12 is subjected to tensile force and stretches out, and the described left hydraulic cylinder 11 first chambeies first oil extraction oil circuit is finished the oil extraction process, and described left hydraulic cylinder 11 second chambeies second oil suction line is finished oil-absorbing process; The described right oil hydraulic cylinder 12 second chambeies second oil extraction oil circuit is finished the oil extraction process, and described right oil hydraulic cylinder 12 first chambeies first oil suction line is finished oil-absorbing process; Basic damping function is finished in its oil circuit control, does not repeat them here.
When the angle of vehicle left-hand bend reaches the scope of setting, vehicle electrically controlling system is by triggering near switch, second solenoid valve 41 of control left hydraulic cylinder 11 cuts out, second solenoid valve 41 of left hydraulic cylinder 11 commutates to off state, the increase damping function is finished in first hydraulic damping in the left hydraulic cylinder 11, and twice damping increases the prevention oil hydraulic cylinder and continue compression; Right oil hydraulic cylinder 12 is owing to stretch, and when secondary increase damping was also finished in first hydraulic damping, twice damping increase also stoped oil hydraulic cylinder to continue to stretch, and the function of damping supercharging is played in oil hydraulic cylinder first hydraulic damping in the left and right sides.
Along with vehicle left-hand bend angle enlarges; first closed electromagnetic valve of electric control system controls left hydraulic cylinder 11 and right oil hydraulic cylinder 12; high pressure oil is during through first relief valve 51; first relief valve 51 plays super angle latch functions in the pressure range of its setting; surpass the setting pressure scope as pressure; first relief valve 51 can be opened pressure release automatically, and system pressure is maintained in the setting pressure scope, plays safety protection function.
In like manner, when vehicle was turned right, left and right sides oil hydraulic cylinder can be finished hydraulic damping control too and surpass the angle latch functions, guaranteed that vehicle can not meet accident because angle of turn is excessive, guaranteed that simultaneously vehicle can return to the craspedodrome state.
Fig. 3 is the utility model supercharging locking hydraulic buffer system embodiment two oil circuit control principle system diagrams, comprise four one-way valves (31,32,33,34), first solenoid valve 42, first hydraulic damping 23 and first relief valve 51, described first hydraulic damping 23 is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the downstream of described first hydraulic damping 23 after first solenoid valve 42 and 51 parallel connections of first relief valve, described first chamber 5, first one-way valve 31, first hydraulic damping 23, described first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the first oil extraction oil circuit successively; Described second chamber 6, second one-way valve 32, first hydraulic damping 23, described first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the second oil extraction oil circuit successively.Its control principle is similar substantially to the utility model embodiment one; different is respectively to have omitted a hydraulic damping in the upstream of first one-way valve 31 and second one-way valve 32; described first chamber or second chamber are by compression the time; hydraulic oil is directly through first hydraulic damping 23 of flowing through of first one-way valve 31 or second one-way valve 32; omitted the effect of basic damping; but the setting of first hydraulic damping 23 and first relief valve 41 also can be finished the increase damping substantially; the function of super angle locking and safety protection; guarantee that Ackermann steer angle can not meet accident because angle of turn is excessive yet, guarantee that simultaneously vehicle can return to the craspedodrome state.
Fig. 4 is the utility model supercharging locking hydraulic buffer system embodiment three oil circuit control principle system diagrams, comprise four one-way valves (31,32,33,34), first solenoid valve 42, first relief valve 51 and second relief valve 52, described second relief valve 52 is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the downstream of described second relief valve 52 after described first solenoid valve 42 and 51 parallel connections of first relief valve, described first chamber 5, first one-way valve 31, second relief valve 52, first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the first oil extraction oil circuit successively; Described second chamber 6, second one-way valve 32, second relief valve 52, described first solenoid valve, 42/ first relief valve 51 and described fuel reserve tank 4 are composed in series the second oil extraction oil circuit successively.Its control principle is similar substantially to the utility model embodiment two; different is high pressure oil flows through behind first one-way valve 31 and second one-way valve 32 second relief valve 52; can regulate the force value of second relief valve 52; when upstream pressure value is higher than setup pressure value; second relief valve 52 will be opened pressure release; play the damping buffering effect; through first relief valve 51 time, can finish the function of super angle locking and safety protection substantially; guarantee that Ackermann steer angle can not meet accident because angle of turn is excessive yet, guarantee that simultaneously vehicle can return to the craspedodrome state.
In each specific embodiment of the present utility model, the size of the resistance that the definite value hydraulic damping produces is directly proportional with the flow of oil extraction, and promptly the speed of Ackermann steer angle is fast more, and the oil extraction flow is big more, and the resistance that oil hydraulic cylinder produces is just big more; Different vehicles according to the size of required resistance, is used the hydraulic damping of different sizes, and relief valve also can be set its predetermined value according to actual needs.
Preferably, in each specific embodiment of the present utility model, upstream at described first hydraulic damping 23 or second relief valve 52 is provided with pressure transducer 30, but described pressure transducer 30 setup pressure value, behind the vehicle driving certain hour, if the pressure in the oil hydraulic cylinder continues the end when the pressure transducer setting value, the warning device that is connected with described pressure sensor signal can be issued alarm signal, buffer invalidation is described, even the oil hydraulic cylinder oil leakage phenomenon may appear, need on-call maintenance, prevent buffer invalidation and cause traffic accident.
More, on the oil extraction pipeline in first chamber 5 of described oil hydraulic cylinder 1 and second chamber 6, pressure tap 40 is set, can in the product testing process, carries out pressure measurement, guarantee product optimized buffer effect the first oil extraction pipeline and the second oil extraction pipeline.
As Fig. 5-shown in Figure 10, described oil hydraulic cylinder also comprises the first chamber integrated package 9 and the second chamber integrated package 10, and the described first chamber integrated package 9 and the second chamber integrated package 10 are located at described cylinder sleeve 7 sealed at both ends described cylinder sleeves 7 respectively.
More preferably, described oil hydraulic cylinder 1 outside also comprises shell 19, described cylinder sleeve 7, shell 19 and the first chamber integrated package 9, the second chamber integrated package 10 constitute fuel reserve tank 4, all one-way valves, hydraulic damping, solenoid valve and relief valve all are arranged in first integrated package and second integrated package, in embodiment one, described first one-way valve 31, the 3rd one-way valve 33 and second hydraulic damping 21 are arranged on the first chamber integrated package 9; Described second solenoid valve 41, first solenoid valve 42, second one-way valve 32, the 4th one-way valve 34, the 3rd hydraulic damping 22, first hydraulic damping 23 and described first relief valve 51 are arranged in described second integrated package 10; Described first integrated package is provided with the first chamber inlet port 17, is used for the oil suction inlet of first oil suction line; Described second integrated package is provided with the second chamber inlet port 25, the second chamber oil drain out 26 and outer tube connection mouth 18, and the described second chamber inlet port 25 and the second chamber oil drain out 26 are respectively applied for the entrance and exit of second oil suction line and the second oil extraction oil circuit; Described first integrated package and second integrated package are by outer tube 15 pipeline connections, be used for being communicated with first one-way valve 31 and second one-way valve 32 (seeing the pipeline 16 of Fig. 1), the one end connects first one-way valve 31 on first integrated package, and the other end is communicated with the outer tube connection mouth 18 on second integrated package; Embodiment two and embodiment 3 all can be arranged on all damping devices in the integrated package, and level of integration is higher, do not need to use external pipeline.
To sum up, hydraulic buffer system of the present utility model designs compactness ingenious, simple for structure, cost of production is low, easy to maintenance, good buffer effect, can be by being provided with basic hydraulic damping and increasing hydraulic damping, can play the resistance buffer function that is directly proportional with speed, can play the safety protection effect again, the function that makes vehicle possess super angle locking and recover to keep straight on simultaneously; In addition,, just reduced the compressive strength of whole damped system, improved the working life of whole buffer system because latch functions can both be played in left and right sides oil hydraulic cylinder first chamber and second chamber.
The utility model never is limited to the various embodiments described above certainly, because to those skilled in the art, can make multiple modification to it, still do not deviate from spirit and scope of the present utility model obviously, can be arranged on the upstream of one-way valve, can be arranged on the downstream of one-way valve yet as each hydraulic damping, in each oil extraction oil circuit a plurality of hydraulic dampings and relief valve can be set, or the like, therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. supercharging locking hydraulic buffer system, comprise oil hydraulic cylinder and fuel reserve tank, described oil hydraulic cylinder comprises cylinder sleeve, piston and piston rod, described piston is divided into first chamber and second chamber with oil hydraulic cylinder, described first chamber is communicated with the first oil extraction oil circuit and first oil suction line with described fuel reserve tank, described second chamber is communicated with the second oil extraction oil circuit and second oil suction line with described fuel reserve tank, it is characterized in that: described supercharging locking hydraulic buffer system also comprises at least one relief valve, at least one solenoid valve and at least one hydraulic damping, described relief valve and described solenoid valve are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, and described at least one hydraulic damping is connected and/or is connected in parallel in the first oil extraction oil circuit and the second oil extraction oil circuit.
2. supercharging locking hydraulic buffer system according to claim 1, it is characterized in that: described supercharging locking hydraulic buffer system also comprises first one-way valve, second one-way valve, the 3rd one-way valve and the 4th one-way valve, described first one-way valve is connected in the first oil extraction oil circuit, described second one-way valve is connected in the described second oil extraction oil circuit, described first chamber, the 3rd one-way valve and described fuel reserve tank are formed first oil suction line, and described second chamber, the 4th one-way valve and described fuel reserve tank are formed second oil suction line.
3. according to claim 1 or the described supercharging locking of claim 2 hydraulic buffer system, it is characterized in that: described supercharging locking hydraulic buffer system comprises first hydraulic damping, second hydraulic damping, the 3rd hydraulic damping, first solenoid valve, second solenoid valve and first relief valve, described second solenoid valve and described first hydraulic damping are connected in parallel in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the downstream of described second solenoid valve and described first hydraulic pressure resistance after described first solenoid valve and the described first relief valve parallel connection, described first chamber, second hydraulic damping, first one-way valve, first hydraulic damping/second solenoid valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, the 3rd hydraulic damping, second one-way valve, first hydraulic damping/second solenoid valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
4. according to claim 1 or the described supercharging locking of claim 2 hydraulic buffer system, it is characterized in that: described supercharging locking hydraulic buffer system comprises first hydraulic damping, first solenoid valve and first relief valve, described first hydraulic damping is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the described first hydraulic damping downstream, described first chamber after described first solenoid valve and the first relief valve parallel connection, first one-way valve, first hydraulic damping, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, second one-way valve, first hydraulic damping, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
5. according to claim 1 or the described supercharging locking of claim 2 hydraulic buffer system, it is characterized in that: described supercharging locking hydraulic buffer system comprises first solenoid valve, first relief valve and second relief valve, described second relief valve is connected in the described first oil extraction oil circuit and the second oil extraction oil circuit, be connected on the described second relief valve downstream after described first solenoid valve and the first relief valve parallel connection, described first chamber, first one-way valve, described second relief valve, first solenoid valve/first relief valve and described fuel reserve tank are composed in series the first oil extraction oil circuit successively; Described second chamber, second one-way valve, described second relief valve, described first solenoid valve/first relief valve and described fuel reserve tank are composed in series the second oil extraction oil circuit successively.
6. supercharging locking hydraulic buffer system according to claim 3, it is characterized in that: described supercharging locking hydraulic buffer system also comprise first near switch and/or second near switch, described first is electrically connected with described second solenoid valve near switch, and described second is electrically connected with described first solenoid valve near switch.
7. according to claim 1 or 2 or 6 described supercharging locking hydraulic buffer systems, it is characterized in that: described oil hydraulic cylinder also comprises the first chamber integrated package and the second chamber integrated package, and the described first chamber integrated package and the second chamber integrated package are located at the sealed at both ends described cylinder sleeve of described cylinder sleeve respectively.
8. supercharging locking hydraulic buffer system according to claim 7 is characterized in that: the described oil hydraulic cylinder outside also comprises shell, and described cylinder sleeve, described shell and the described first chamber integrated package, the second chamber integrated package constitute fuel reserve tank.
9. supercharging locking hydraulic buffer system according to claim 8 is characterized in that: described first one-way valve, the 3rd one-way valve and second hydraulic damping are arranged in the described first chamber integrated package; Described first solenoid valve, second solenoid valve, second one-way valve, the 4th one-way valve, the 3rd hydraulic damping, first hydraulic damping and relief valve are arranged in the described second chamber integrated package.
10. according to claim 1 or 2 or 6 or 9 described supercharging locking hydraulic buffer systems, it is characterized in that: described supercharging locking hydraulic buffer system also comprises pressure transducer, and described pressure transducer is arranged on described first hydraulic damping or the second relief valve upstream.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202761714U CN201827172U (en) | 2010-07-30 | 2010-07-30 | Supercharging latching hydraulic buffer system |
| PCT/CN2010/080462 WO2011150653A1 (en) | 2010-06-02 | 2010-12-29 | Chassis articulated system for large articulated vehicle |
| US13/700,628 US9150062B2 (en) | 2010-06-02 | 2010-12-29 | Articulated chassis system of large articulated vehicle |
| BR112012030617A BR112012030617B8 (en) | 2010-06-02 | 2010-12-29 | Large articulated vehicle articulated chassis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202761714U CN201827172U (en) | 2010-07-30 | 2010-07-30 | Supercharging latching hydraulic buffer system |
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| Publication Number | Publication Date |
|---|---|
| CN201827172U true CN201827172U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202761714U Expired - Lifetime CN201827172U (en) | 2010-06-02 | 2010-07-30 | Supercharging latching hydraulic buffer system |
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| Country | Link |
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| CN (1) | CN201827172U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116332A (en) * | 2010-07-30 | 2011-07-06 | 伊卡露斯(苏州)车辆系统有限公司 | Pressurizing and locking hydraulic buffer system |
| CN102192213A (en) * | 2011-05-21 | 2011-09-21 | 汉川机床集团有限公司 | Internal recycle balance pressure oil cylinder |
| CN104235115A (en) * | 2014-09-17 | 2014-12-24 | 青特集团有限公司 | Running buffer type hydraulic oil cylinder |
-
2010
- 2010-07-30 CN CN2010202761714U patent/CN201827172U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116332A (en) * | 2010-07-30 | 2011-07-06 | 伊卡露斯(苏州)车辆系统有限公司 | Pressurizing and locking hydraulic buffer system |
| CN102116332B (en) * | 2010-07-30 | 2013-06-26 | 伊卡路斯(苏州)车辆系统有限公司 | Pressurizing and locking hydraulic buffer system |
| CN102192213A (en) * | 2011-05-21 | 2011-09-21 | 汉川机床集团有限公司 | Internal recycle balance pressure oil cylinder |
| CN104235115A (en) * | 2014-09-17 | 2014-12-24 | 青特集团有限公司 | Running buffer type hydraulic oil cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215211 Wujiang City, Jiangsu province FENHU Economic Development Zone, the community Fen Road No. 666 Patentee after: Jointech (Suzhou) Vehicle System Co., Ltd. Address before: 215211 Wujiang City, Jiangsu province FENHU Economic Development Zone, the community Fen Road No. 666 Patentee before: Jointech Vehicle System (Suzhou) Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20130626 |
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| RGAV | Abandon patent right to avoid regrant |