CN205154812U - Two -way ferry vehicle lock bridge hydraulic system that traveles - Google Patents
Two -way ferry vehicle lock bridge hydraulic system that traveles Download PDFInfo
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- CN205154812U CN205154812U CN201520848029.5U CN201520848029U CN205154812U CN 205154812 U CN205154812 U CN 205154812U CN 201520848029 U CN201520848029 U CN 201520848029U CN 205154812 U CN205154812 U CN 205154812U
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- 238000004880 explosion Methods 0.000 claims abstract description 46
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 239000002828 fuel tank Substances 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000002474 experimental method Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 36
- 239000007788 liquid Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/148—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering provided with safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses a two -way ferry vehicle lock bridge hydraulic system that traveles, including lock bridge oil tank, lock bridge return circuit, lock bridge magenetic exchange valve and explosion stack device, lock bridge return circuit includes that lock bridge pressure piping and lock bridge go back to the oil pipe way, communicates respectively between lock bridge oil tank and two sets of lock bridge crane structure, on lock bridge magenetic exchange valve located lock bridge pressure piping, optionally was to one of them fuel feeding of two sets of lock bridge crane structures, lock bridge pressure piping is located to the explosion stack device, and is located the intercommunication department that lock bridge pressure piping and lock bridge crane construct, and when the pressure value of lock bridge pressure piping was less than an explosion stack lower limit pressure value, the explosion stack device cuts off locked the bridge pressure piping. The utility model provides a two -way ferry vehicle lock bridge hydraulic system that traveles, through the setting of explosion stack device, overcome current ferry vehicle lock bridge hydraulic system booster after, the problem of the unable positive both sides of lock axle has improved reliability and the security of whole car at the operation in -process.
Description
Technical field
The utility model relates to ferry bus technical field, particularly relates to a kind of two way ferry-boat lock bridge hydraulic system.
Background technique
Airport ferry push is used for travelling to and fro between terminal and seat in the plane far away aircraft picks boarding and the passenger that disembarks, and it is applicable to level ground, station and other places of each Civil Aviation Airport.For less airport, two way ferry bus drives head because it has two, therefore is comparatively applicable to its less traffic space.When driver needs to turn around in driving procedure, only need drive head at another and drive.The appearance of two way ferry bus efficiently solves airport ferry push radius of turn greatly, the problem of difficulty.
In existing two way ferry bus, wherein a kind of employing is fully hydraulic driven, and hydraulic system is mainly used in the function realizing driving vehicle to run, turning to and lock bridge.Hydraulic lock bridge (hydraulic pressure keeps wheel straight-line travelling to be defined as hydraulic lock bridge) function when vehicle travels normally utilizes lock bridge hydraulic system to realize.Above-mentioned lock bridge hydraulic system mainly can freely be turned to by the vehicle bridge of the driving head at driver place, and another vehicle bridge of driving head is just being locked by hydraulic system and both sides tire is kept and vehicle bridge axes normal under certain hydraulic pressure.Airport ferry push is fully loaded with quality generally at about 20t, travelling speed is generally at 30 kilometer per hours ~ 50 kilometer per hours, lock bridge hydraulic system can produce a large amount of heats in vehicle to run process, intrasystem oil liquid temperature is caused to raise, easy generation booster fault, causes ferry bus cannot realize locking bridge function normally.
Model utility content
Main purpose of the present utility model is to propose a kind of two way ferry-boat lock bridge hydraulic system, normally cannot lock the technical problem of bridge with the lock bridge hydraulic system solving existing ferry bus due to booster fault.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
The utility model proposes a kind of two way ferry-boat lock bridge hydraulic system, described two way ferry bus comprises two vehicle bridge being located at side before and after it and the two groups of lock bridge mechanisms can locking just described two vehicle bridge respectively, wherein, described two way ferry-boat lock bridge hydraulic system comprises lock bridge fuel tank, lock bridge loop, lock bridge solenoid directional control valve and explosion stack device; Described lock bridge loop comprises lock bridge pressure piping and lock bridge return line, be communicated in described lock bridge fuel tank respectively and described two groups lock between bridge mechanism; Described lock bridge solenoid directional control valve is located on described lock bridge pressure piping, optionally to one of them fuel feeding of described two groups of lock bridge mechanisms; Described explosion stack device is located at described lock bridge pressure piping, and be positioned at the connectivity part of described lock bridge pressure piping and described lock bridge mechanism, when the force value of described lock bridge pressure piping is lower than an explosion stack threshold pression value, described explosion stack device cuts off described lock bridge pressure piping.
According to one of them mode of execution of the present utility model, often organize described lock bridge mechanism and comprise two lock bridge oil cylinders, to lock two wheels at just described vehicle bridge two ends respectively, described lock bridge pressure piping has four secondary branch roads, and described four secondary branch roads are communicated in four described lock bridge oil cylinders respectively.
According to one of them mode of execution of the present utility model, on each secondary branch road of described lock bridge pressure piping, be equipped with described explosion stack device, and each described explosion stack device is positioned at corresponding described secondary branch road and the connectivity part of described lock bridge oil cylinder, when the force value of arbitrary secondary branch road of described lock bridge pressure piping is lower than described explosion stack threshold pression value, corresponding described explosion stack device cuts off described secondary branch road.
According to one of them mode of execution of the present utility model, described explosion stack device comprises solenoid valve and pressure relay; Described solenoid valve is optionally communicated with or cuts off described lock bridge pressure piping; Described pressure relay can control described solenoid valve, and when the force value of described lock bridge pressure piping is lower than described explosion stack threshold pression value, described pressure relay controls to lock bridge pressure piping described in described solenoid valve shuts.
According to one of them mode of execution of the present utility model, described lock bridge loop also comprises explosion stack experimental setup, be located at described lock bridge pressure piping, and between described explosion stack device and described lock bridge mechanism, described explosion stack experimental setup comprises experiment fuel tank and stop valve; Described experiment fuel tank is communicated in described lock bridge pressure piping by an experiment pipeline; Described experiment pipeline is located at by described stop valve, optionally to open or to cut off described experiment pipeline.
According to one of them mode of execution of the present utility model, described lock bridge loop also comprises pressure compensator, comprises liquid-filling valve and accumulator; Described lock bridge pressure piping is located at by described liquid-filling valve, and between described lock bridge solenoid directional control valve and described lock bridge fuel tank, when the force value in described lock bridge loop reaches a work pressure upper limit value, described liquid-filling valve regulates described lock bridge pressure piping to carry out pressure release; When the force value in described lock bridge loop reaches a lower work threshold force value, described liquid-filling valve regulates described lock bridge pressure piping to carry out ftercompction; Described accumulator is connected to described liquid-filling valve, with when the force value in described lock bridge loop reaches described work pressure upper limit value, carries out pressurize to described lock bridge loop.
According to one of them mode of execution of the present utility model, described lock bridge loop also comprises pressure warning unit; Described lock bridge pressure piping is located at by described pressure warning unit, to report to the police lower than during a lower safety limit force value in the force value in described lock bridge loop.
According to one of them mode of execution of the present utility model, described lock bridge loop also comprises pressure-relief device; Described pressure-relief device is located on described lock bridge pressure piping, and to carry out overflow in the force value in described lock bridge loop higher than during a upper safety limit force value, the force value limiting described lock bridge loop continues to raise.
According to one of them mode of execution of the present utility model, described lock bridge solenoid directional control valve is the solenoid directional control valve of band location.
According to one of them mode of execution of the present utility model, described two way ferry-boat lock bridge hydraulic system also comprises emergency hydraulic system, comprises emergent oil pump and emergent solenoid valve; Described emergent solenoid valve can open and close to be communicated between described lock bridge fuel tank and described lock bridge loop, makes described emergent oil pump to described lock bridge loop fuel feeding.
As shown from the above technical solution, the beneficial effects of the utility model are: the two way ferry-boat lock bridge hydraulic system that the utility model proposes, by the setting of explosion stack device, after overcoming existing ferry-boat lock bridge hydraulic system booster, the problem of positive both sides vehicle bridge cannot be locked, improve the reliability of car load in running and Security.
Accompanying drawing explanation
Fig. 1 is the system schematic that the utility model two way ferry-boat lock bridge hydraulic pressure system unifies mode of execution;
Fig. 2 is that the utility model two way ferry-boat lock bridge hydraulic pressure system is unified in mode of execution, the experimental curve diagram of explosion stack experiment.
Wherein, description of reference numerals is as follows:
10. vehicle bridge; 20. lock bridge oil cylinders; 11. lock bridge fuel tanks; 21. lock bridge solenoid directional control valves; 221. solenoid valve; 222. pressure relay; 231. liquid-filling valve; 232. accumulator; 241. pressure relay; 242. buzzer; 25. safety valves; 26. first oil pumps; 42. emergent oil pumps; 43. emergent solenoid valves.
Embodiment
The exemplary embodiments embodying the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various changes in different embodiments, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be the use explained in essence, and be not used to limit the utility model.
It should be noted that, in the description of specification, each numerical value unit is all described with the form of word or numeral, such as pressure unit's MPa (MPa), unit of time minute (min), second (s), parasang rice (m), millimeter (mm), speed unit kilometer per hour (Km/h) and volume unit's liter (L) etc., all do not limit the utility model application in other embodiments.With reference to the accompanying drawings some embodiments of the present utility model is further described.
As shown in Figure 1, the two way ferry-boat lock bridge hydraulic system that the utility model proposes, can be applied to two way ferry bus.This two way ferry bus has two and drives side, be respectively a head and main driving side and b head and copilot side, be also called the side, front and back of two way ferry bus, each is driven the side at place, side and all has a vehicle bridge 10 (front side vehicle bridge is generally steering drive axle, rear side vehicle bridge is generally steering axle), each vehicle bridge 10 is equipped with lock bridge mechanism.Specifically, for the lock bridge mechanism in a vehicle bridge 10, comprise two the lock bridge oil cylinders 20 be located at respectively on two wheel positions of these vehicle bridge both sides.Lock bridge oil cylinder 20, for locking the wheel that just this side is corresponding, namely locks bridge mechanism lock just this vehicle bridge 10.When driver drives in one of them of a head and b head, by the hydraulic pressure lock of lock bridge mechanism just, tire keeps straight line motion to opposite side vehicle bridge 10.
As shown in Figure 1, a mode of execution of the two way ferry-boat lock bridge hydraulic system (hereinafter referred to as lock bridge hydraulic system) that the utility model proposes.In the present embodiment, this lock bridge hydraulic system can be used in the lock bridge of two way ferry bus both sides vehicle bridge.This lock bridge hydraulic system mainly comprises lock bridge fuel tank 11, lock bridge loop, lock bridge solenoid directional control valve 21, explosion stack device, explosion stack experimental setup, pressure compensator, pressure warning unit, safety valve 25 and emergency hydraulic system.
In the present embodiment, on the return opening of lock bridge fuel tank 11, return filter installation interface can be set to install back oil strainer.This return filter is located at the lock bridge return line in lock bridge loop, to filter the oil return in lock bridge loop.Further, lock bridge fuel tank 11 top also can be provided with the installation interface 1122 for installing air-strainer.In addition, in the present embodiment, the lock bridge return line in lock bridge loop is also provided with radiator, and this radiator is positioned at the direction or be not limited to other positions of return filter of setting out on a journey of return filter, first to dispel the heat the function of filtering afterwards to the oil return in lock bridge loop to provide.It should be noted that the return filter proposed in present embodiment and radiator are only exemplary explanation.In other embodiments, also return filter can be set separately, or radiator is set separately, i.e. installation of heat radiator on the return line of lock bridge fuel tank 11, be arranged on again or by return filter the direction of setting out on a journey of radiator, all be not limited with present embodiment, but preferably return filter and radiator all should be arranged on lock bridge loop and the joint of locking bridge fuel tank 11 return opening 112.
In addition, in the present embodiment, lock bridge fuel tank 11 is provided with liquid level liquid thermometer 13, to monitor liquid level in lock bridge fuel tank 11 and liquid temperature data in real time.
As shown in Figure 1, in the present embodiment, lock bridge pressure piping one end is communicated in the inlet port of lock bridge fuel tank 11 by one first oil pump 26, and the other end is communicated in two groups of lock bridge mechanisms respectively.Specifically, lock bridge pressure piping has four the secondary branch roads being communicated in four lock bridge oil cylinders 20 respectively, and two the secondary branch roads corresponding to the same side vehicle bridge are communicated in an one-level branch road, article two, one-level branch road is communicated on lock bridge solenoid directional control valve 21 respectively, and above-mentioned four secondary branch roads, two one-level branch roads and the pipeline that is communicated between lock bridge solenoid directional control valve 21 and lock bridge fuel tank 11, together constitute the major component of lock bridge pressure piping.
It should be noted that, the two-position four-way solenoid directional control valve of preferably with location in present embodiment, when its left position or the work of right position, corresponding electromagnet keeps electric, in fact this technical characterstic serves the effect of double insurance, after avoiding the positioning device inefficacy of lock bridge solenoid directional control valve 21, it can not remain on the situation of working position, now electromagnet often-have-electricity, electromagnetic attraction makes spool remain on working position, it also avoid electrical malfunction and cause electromagnet dead electricity, it can not remain on the situation of working position, and now positioning device makes spool remain on working position.Selecting of above-mentioned lock bridge solenoid directional control valve 21, the spool avoiding the lock bridge solenoid directional control valve 21 of existing double end ferry-boat lock bridge hydraulic system can not remain on normal working position, and the problem that the lock bridge hydraulic system fault caused and hydraulic lock bridge pressure reduce suddenly.In other embodiments, also form can be set according to the pipeline in lock bridge loop, select the solenoid directional control valve of other kinds flexibly, but answer the solenoid directional control valve of preferably with locating function, not as limit.
The lock bridge hydraulic system of existing ferry bus reduces suddenly and causes primarily of following reason: the sebific duct generation booster connecting lock bridge oil cylinder 20, hydraulic oil liquid is caused to be flowed out by booster side, lock bridge hydraulic system cannot build-up pressure (the hydraulic jack ground Clearance is generally 300 millimeter, being car load ground Clearance minimum position, easily there is booster in pipeline).Electrical failure causes H type three-position four-way electromagnetic directional valve (traditional double end ferry bus all adopts H type three-position four-way electromagnetic directional valve) dead electricity, the drain charge of spool meta.For the problems referred to above, as shown in Figure 1, in the present embodiment, explosion stack device is located at lock bridge pressure piping, and is positioned at lock bridge pressure piping and the connectivity part of lock bridge mechanism, namely locks each secondary branch road of bridge pressure piping and the connectivity part of each lock bridge oil cylinder 20.Explosion stack device comprises solenoid valve 221 and pressure relay 222, solenoid valve 221 is for being optionally communicated with or cutting off lock bridge pressure piping, pressure relay 222 is for Controlling solenoid valve 221, when the force value of lock bridge pressure piping is lower than one explosion stack threshold pression value (such as 9 MPas), pressure relay 222 Controlling solenoid valve 221 cuts off lock bridge pressure piping.It should be noted that, in the present embodiment, lock bridge solenoid directional control valve 21 is preferably the two-position four-way solenoid directional control valve of band location, and namely locking bridge pressure piping in the punishment of lock bridge solenoid directional control valve 21 is two one-level branch roads, that is four secondary branch roads.This two-position four-way solenoid directional control valve has two current potentials, and corresponding two the one-level branch roads of each current potential, to be communicated to the lock bridge mechanism before and after ferry bus in side vehicle bridge 10 respectively.In sum, in the present embodiment, the quantity of explosion stack device is four groups, and namely four solenoid valves 221 and four pressure relayes 222, be arranged on four secondary branch roads respectively.In other embodiments, also can lock on secondary branch road that bridge oil cylinder 20 is communicated with in one of them of locking bridge mechanism with each and one group of explosion stack device is set, also or according to lock bridge pressure piping form is set with other pipelines of lock bridge mechanism joint, correspondingly change the set-up mode of explosion stack device, not as limit, only need meet and provide the function of above-mentioned explosion stack to side vehicle bridge 10 before and after ferry bus.
As shown in Figure 1, in the present embodiment, explosion stack experimental setup is located on lock bridge pressure piping, and between explosion stack device and lock bridge mechanism.Wherein, explosion stack experimental setup comprises experiment fuel tank and stop valve, and experiment fuel tank is communicated in lock bridge pressure piping by an experiment pipeline, and experiment pipeline is located at by stop valve, optionally to open or to cut off experiment pipeline.For said structure, the utility model devises booster experiment and carries out simulation booster to every bar secondary branch road, and when guaranteeing that vehicle travels, explosion stack device effectively can prevent booster.For a wherein secondary branch road, can with reference to figure 2 to the schematic diagram of its design explosion stack experiment, at the jointing of lock bridge oil cylinder 20 with this secondary branch road, draws one section of experiment pipeline and be connected with stop valve, fuel tank is tested in the connection of the stop valve the other end.After this secondary branch road reaches normal lock bridge pressure 15 MPa, manual unlocking stop valve, simulates this pipeline booster.Solenoid valve 221 after booster on this secondary branch road cuts off this branch road automatically, obtains the booster empirical curve shown in accompanying drawing 2.Locking bridge hydraulic system in above-mentioned experiment, normally to lock bridge pressure be 15 MPas, and pressure relay 222 set pressure is 9 MPas.Key parameter in the experiment of this booster is the pressore setting of pressure relay 222, and general ideal state is that behind 2 seconds ~ 3 seconds of generation booster, booster loop is cut off in solenoid valve 221 action.If pressure set points is too high, system may produce booster action by mistake because other reasons pressure is reduced to setting value, in fact system booster does not occur.If pressure set points is too low, even if system generation booster also cannot be measured, then may cause without booster action fluid by booster effluent to the greatest extent.
As shown in Figure 1, in the present embodiment, pressure compensator mainly comprises liquid-filling valve 231 and accumulator 232.Wherein, liquid-filling valve 231 is located on lock bridge pressure piping, and between lock bridge solenoid directional control valve 21 and the first oil pump 26.When the force value of locking bridge loop reaches one work pressure upper limit value (such as 15 MPas), liquid-filling valve 231 regulates lock bridge pressure piping to carry out pressure release, when the force value of locking bridge loop reaches a lower work threshold force value (such as 12.5 MPas), liquid-filling valve 231 regulates lock bridge pressure piping to carry out ftercompction.Accumulator 232 is connected to liquid-filling valve 231, during for reaching work pressure upper limit value (such as 15 MPas) in the force value of locking bridge loop, carries out pressurize to lock bridge loop.
As shown in Figure 1, in the present embodiment, lock bridge pressure piping is located at by pressure warning unit, a such as pressure relay 241, to report to the police lower than a lower safety limit force value (such as 9 MPas) time in the force value in lock bridge loop.Specifically, pressure relay 241 is utilized to connect a buzzer 242 and a warning light be arranged on meter panel of motor vehicle.When locking bridge loop internal pressure lower than 9 MPa, this pressure relay 241 sends electrical signal, and buzzer 242 sends warning and warning light is lighted.In other embodiments, other equipment or electrical apparatus element also can be used to substitute above-mentioned pressure alarm, provide the function of monitoring lock bridge circuit pressure, not as limit.
As shown in Figure 1, in the present embodiment, safety valve 25 is located at lock bridge pressure piping and is connected on the position of the first oil pump 26, i.e. the first oil pump 26 position of being pumped by locking bridge pressure piping by the hydraulic oil in lock bridge fuel tank 11.Safety valve 25 is mainly used in carrying out overflow in the force value in lock bridge loop higher than time a upper safety limit force value (such as 18 MPas), namely cuts off the fuel feeding of the first oil pump 26 to lock bridge pressure piping, continues to raise with the force value limiting lock bridge loop.In other embodiments, also can use other equipment replacement safety valves 25, as pressure-relief device, the pressure in lock bridge loop be monitored, not as limit.
It should be noted that, be only exemplary illustration for the description of above-mentioned pressure warning unit and safety valve 25 in present embodiment, its concrete set-up mode and mounting point all can adjust according to actual needs flexibly.Further, only pressure warning unit can be set, also can safety valve 25 be only set, also pressure warning unit and safety valve 25 can be set simultaneously, all not be limited with present embodiment.
As shown in Figure 1, for present embodiment, the working principle of above-mentioned pressure compensator, pressure warning unit and safety valve 25 is as follows: it is 15 MPas that liquid-filling valve 231 sets work pressure upper limit value, lower work threshold force value is 12.5 MPas, and it is 18 MPas that safety valve 25 sets upper safety limit force value.When lock bridge lock bridge hydraulic system normally works, when lock bridge circuit pressure rises to 15 MPa, N mouth and the P mouth of liquid-filling valve 231 are connected, and the first oil pump 26 is by lock bridge pressure piping from the drain charge of N mouth, and pressure becomes 0.The S2 mouth of liquid-filling valve 231 and accumulator 232 and lock bridge loop and be connected, accumulator 232 plays pressure maintaining effect in lock bridge loop, and lock bridge pressure remains on 15 MPas.When locking bridge loop and causing pressure to be reduced to 12.5 MPa due to pipeline leakage or other reasons, P mouth and the S2 mouth of liquid-filling valve 231 are connected, and the first oil pump 26 is lock bridge loop supplementary pressure by lock bridge pressure piping, until drain charge again when pressure rises to 15 MPa.It is 9 MPas that pressure relay 241 sets lower safety limit force value, and when pressure sends electrical signal lower than during 9 MPa, the low warning light of instrument panel lock bridge pressure is bright, and buzzer 242 is reported to the police.It should be noted that, above-mentioned work pressure upper limit value, lower work threshold force value, upper safety limit force value and lower safety limit force value all can set according to actual conditions, not as limit.
As shown in Figure 1, in the present embodiment, emergency hydraulic system mainly comprises emergent oil pump 42 and emergent solenoid valve 43.Emergent solenoid valve 43 is communicated with lock bridge fuel tank 11 and lock bridge loop for can open and close to, and makes emergent oil pump 42 to lock bridge loop fuel feeding.Further, in order to avoid lock bridge fuel tank 11 breaks down on the impact of emergency hydraulic system, an emergency tank can also be set, can open and close to make emergent solenoid valve 43 be communicated with emergency tank and lock bridge loop, make emergent oil pump 42 to lock bridge loop fuel feeding.In other embodiments, each hydraulic element in emergency hydraulic system also can select other kinds, not as limit.
For present embodiment, when locking bridge hydraulic system failure and causing systemic breakdown, emergent solenoid valve 43 selects will lock bridge fuel tank 11 or emergency tank and lock bridge circuit communication, and namely locks bridge mechanism fuel feeding by emergent oil pump 42 to lock bridge loop, and realization is met an urgent need and locked bridge function.Preferably, emergency line is lock the position between pressure compensator on bridge pressure piping and safety valve 25 with the position that is communicated with in lock bridge loop, the position namely between lock bridge solenoid directional control valve 21 and the first oil pump 26.Bridge malfunctioning potential safety hazard is locked when emergency hydraulic system solves vehicle trouble.
It should be noted that, when emergent oil pump 42 provides power as emergency power supply, be all work within a short period of time.Under normal circumstances, when emergent oil pump 42 is for lock bridge hydraulic system supplementary pressure, continuous working period is the pressure rising time of lock bridge hydraulic system, namely pressure is elevated to the time of work pressure upper limit value (such as 15 MPas) by lower work threshold force value (such as 12.5 MPas), and pressure rising time is usually within 5 seconds.About 40 minutes are interposed between the general supplementary pressure of lock bridge hydraulic system.Emergent oil pump 42 selected in present embodiment requires that continuous working period is no more than 3 minutes, and actual service condition meets the continuous working period requirement of emergent oil pump 42 completely.
In addition, in the present embodiment, for the ease of driver's operation, the electric lock bridge switch of Self-resetting can be installed on bridge instrumentation dish.After pressing electric lock bridge switch, emergent solenoid valve 43 controls emergent oil pump and provides power for locking bridge hydraulic system.
Should be understood that, emergency hydraulic system is not limited in as lock bridge hydraulic system provides emergency guarantee.This emergency hydraulic system can also be comprise power-assisted steering hydraulic system, and other hydraulic systems of two way ferry bus provide the mode of execution of emergency guarantee.Such as, emergent solenoid valve 43 can be selected solenoid directional control valve, so as optionally to each hydraulic system above-mentioned at least one of them carries out emergent fuel feeding, namely provide emergency guarantee to each hydraulic system of two way ferry bus simultaneously.
Though exemplary embodiment describe two way ferry bus hydraulic system of the present utility model with reference to several, should be understood that term used be illustrate and illustrative, and not restrictive.Specifically can implement in a variety of forms due to the utility model and not depart from its design or essence, therefore, above-described embodiment is not limited to any aforesaid details, and explain widely in the design that should limit in claim of enclosing and scope, therefore the whole change fallen in claim or its equivalent scope and remodeling all should be claim of enclosing and contained.
Claims (10)
1. a two way ferry-boat lock bridge hydraulic system, described two way ferry bus comprises two vehicle bridge (10) being located at side before and after it and the two groups of lock bridge mechanisms can locking just described two vehicle bridge (10) respectively, it is characterized in that, described two way ferry-boat lock bridge hydraulic system comprises:
Lock bridge fuel tank (11);
Lock bridge loop, comprises lock bridge pressure piping and lock bridge return line, be communicated in described lock bridge fuel tank (11) respectively and described two groups lock between bridge mechanism;
Lock bridge solenoid directional control valve (21), is located on described lock bridge pressure piping, optionally to one of them fuel feeding of described two groups of lock bridge mechanisms; And
Explosion stack device, be located at described lock bridge pressure piping, and being positioned at the connectivity part of described lock bridge pressure piping and described lock bridge mechanism, when the force value of described lock bridge pressure piping is lower than an explosion stack threshold pression value, described explosion stack device cuts off described lock bridge pressure piping.
2. two way ferry-boat lock bridge hydraulic system according to claim 1, it is characterized in that, often organize described lock bridge mechanism and comprise two lock bridge oil cylinders, to lock two wheels at just described vehicle bridge (10) two ends respectively, described lock bridge pressure piping has four secondary branch roads, and described four secondary branch roads are communicated in four described lock bridge oil cylinders respectively.
3. two way ferry-boat lock bridge hydraulic system according to claim 2, it is characterized in that, on each secondary branch road of described lock bridge pressure piping, be equipped with described explosion stack device, and each described explosion stack device is positioned at corresponding described secondary branch road and the connectivity part of described lock bridge oil cylinder, when the force value of arbitrary secondary branch road of described lock bridge pressure piping is lower than described explosion stack threshold pression value, corresponding described explosion stack device cuts off described secondary branch road.
4. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described explosion stack device comprises:
Solenoid valve (221), is optionally communicated with or cuts off described lock bridge pressure piping; And
Pressure relay (222), described solenoid valve (221) can be controlled, when the force value of described lock bridge pressure piping is lower than described explosion stack threshold pression value, described pressure relay (222) controls described solenoid valve (221) and cuts off described lock bridge pressure piping.
5. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described lock bridge loop also comprises explosion stack experimental setup, be located at described lock bridge pressure piping, and between described explosion stack device and described lock bridge mechanism, described explosion stack experimental setup comprises:
Experiment fuel tank, is communicated in described lock bridge pressure piping by an experiment pipeline; And
Stop valve, is located at described experiment pipeline, optionally to open or to cut off described experiment pipeline.
6. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described lock bridge loop also comprises pressure compensator, comprising:
Liquid-filling valve (231), be located at described lock bridge pressure piping, and be positioned between described lock bridge solenoid directional control valve (21) and described lock bridge fuel tank (11), when the force value in described lock bridge loop reaches a work pressure upper limit value, described liquid-filling valve (231) regulates described lock bridge pressure piping to carry out pressure release; When the force value in described lock bridge loop reaches a lower work threshold force value, described liquid-filling valve (231) regulates described lock bridge pressure piping to carry out ftercompction; And
Accumulator (232), is connected to described liquid-filling valve (231), with when the force value in described lock bridge loop reaches described work pressure upper limit value, carries out pressurize to described lock bridge loop.
7. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described lock bridge loop also comprises:
Pressure warning unit, is located at described lock bridge pressure piping, to report to the police lower than during a lower safety limit force value in the force value in described lock bridge loop.
8. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described lock bridge loop also comprises:
Pressure-relief device, is located on described lock bridge pressure piping, and to carry out overflow in the force value in described lock bridge loop higher than during a upper safety limit force value, the force value limiting described lock bridge loop continues to raise.
9. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, it is characterized in that, described lock bridge solenoid directional control valve (21) is the solenoid directional control valve of band location.
10. the two way ferry-boat lock bridge hydraulic system according to any one of claims 1 to 3, is characterized in that, described two way ferry-boat lock bridge hydraulic system also comprises emergency hydraulic system, comprising:
Emergent oil pump (42); And
Emergent solenoid valve (43), can open and close to be communicated between described lock bridge fuel tank (11) and described lock bridge loop, makes described emergent oil pump (42) to described lock bridge loop fuel feeding.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848029.5U CN205154812U (en) | 2015-10-28 | 2015-10-28 | Two -way ferry vehicle lock bridge hydraulic system that traveles |
| DE212016000121.3U DE212016000121U1 (en) | 2015-10-28 | 2016-10-26 | Bidirectional ride shuttle vehicle Brückenarretierungs hydraulic system |
| PCT/CN2016/103384 WO2017071584A1 (en) | 2015-10-28 | 2016-10-26 | Axle-locking hydraulic system of two-way driving shuttle vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848029.5U CN205154812U (en) | 2015-10-28 | 2015-10-28 | Two -way ferry vehicle lock bridge hydraulic system that traveles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154812U true CN205154812U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520848029.5U Active CN205154812U (en) | 2015-10-28 | 2015-10-28 | Two -way ferry vehicle lock bridge hydraulic system that traveles |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN205154812U (en) |
| DE (1) | DE212016000121U1 (en) |
| WO (1) | WO2017071584A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071584A1 (en) * | 2015-10-28 | 2017-05-04 | 民航协发机场设备有限公司 | Axle-locking hydraulic system of two-way driving shuttle vehicle |
| CN107882821A (en) * | 2016-09-30 | 2018-04-06 | 中国国际海运集装箱(集团)股份有限公司 | Dual-way vehicle latch bridge hydraulic system |
| CN108411766A (en) * | 2017-11-30 | 2018-08-17 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle control system and control method |
| CN108425315A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle |
| CN108438150A (en) * | 2017-11-30 | 2018-08-24 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board the working method of trestle |
| CN109611400A (en) * | 2018-12-13 | 2019-04-12 | 江苏恒立液压股份有限公司 | Hydraulic system pipeline structure |
| CN115384613A (en) * | 2022-09-13 | 2022-11-25 | 廊坊中集空港设备有限公司 | Steering system and steering control method |
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| CN107588048A (en) * | 2017-09-15 | 2018-01-16 | 花园金波科技股份有限公司 | The matrix hydraulic system against pressure for hindering corrugated pipe forming machine |
| CN108035922A (en) * | 2017-12-12 | 2018-05-15 | 南通皋液重工股份有限公司 | A kind of stageless setting automatic compensation type hydraulic system |
| CN115743294B (en) * | 2022-12-09 | 2023-08-25 | 四川蓝海智能装备制造有限公司 | Multifunctional hydraulic control system for two-way driving four wheels |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3919399B2 (en) * | 1998-11-25 | 2007-05-23 | カヤバ工業株式会社 | Hydraulic control circuit |
| WO2001029430A1 (en) * | 1999-10-20 | 2001-04-26 | Hitachi Construction Machinery Co., Ltd. | Pipe breakage control valve device |
| JP3915622B2 (en) * | 2002-07-30 | 2007-05-16 | コベルコ建機株式会社 | Load holding device for hydraulic actuator circuit |
| CN202657130U (en) * | 2012-06-07 | 2013-01-09 | 民航协发机场设备有限公司 | Double-head shuttle bus and head-changing driving switching device thereof |
| CN205154812U (en) * | 2015-10-28 | 2016-04-13 | 民航协发机场设备有限公司 | Two -way ferry vehicle lock bridge hydraulic system that traveles |
-
2015
- 2015-10-28 CN CN201520848029.5U patent/CN205154812U/en active Active
-
2016
- 2016-10-26 WO PCT/CN2016/103384 patent/WO2017071584A1/en active Application Filing
- 2016-10-26 DE DE212016000121.3U patent/DE212016000121U1/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071584A1 (en) * | 2015-10-28 | 2017-05-04 | 民航协发机场设备有限公司 | Axle-locking hydraulic system of two-way driving shuttle vehicle |
| CN107882821A (en) * | 2016-09-30 | 2018-04-06 | 中国国际海运集装箱(集团)股份有限公司 | Dual-way vehicle latch bridge hydraulic system |
| CN108411766A (en) * | 2017-11-30 | 2018-08-17 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle control system and control method |
| CN108425315A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle |
| CN108438150A (en) * | 2017-11-30 | 2018-08-24 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board the working method of trestle |
| CN108425315B (en) * | 2017-11-30 | 2020-04-14 | 中船华南船舶机械有限公司 | Position compensation retractable landing stage |
| CN108438150B (en) * | 2017-11-30 | 2020-04-14 | 中船华南船舶机械有限公司 | Working method of position compensation telescopic boarding trestle |
| CN109611400A (en) * | 2018-12-13 | 2019-04-12 | 江苏恒立液压股份有限公司 | Hydraulic system pipeline structure |
| CN115384613A (en) * | 2022-09-13 | 2022-11-25 | 廊坊中集空港设备有限公司 | Steering system and steering control method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017071584A1 (en) | 2017-05-04 |
| DE212016000121U1 (en) | 2018-01-29 |
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Effective date of registration: 20210616 Address after: 102206 b4061, building 8, No. 97, Changping Road, Shahe Town, Changping District, Beijing (Changping Demonstration Park) Patentee after: XINFA AIRPORT EQUIPMENT Ltd. Patentee after: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee after: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. Address before: 102206 room 402, block C, Xinyuan Science Park, No.97, Shahe Changping Road, Changping District, Beijing Patentee before: XINFA AIRPORT EQUIPMENT Ltd. Patentee before: LANGFANG CIMC AIRPORT EQUIPMENT Co.,Ltd. Patentee before: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT Co.,Ltd. Patentee before: China International Marine Containers (Group) Co.,Ltd. |