CN204312071U - Tunneling machine hydraulic control system and flow distributing system - Google Patents
Tunneling machine hydraulic control system and flow distributing system Download PDFInfo
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- CN204312071U CN204312071U CN201420647149.4U CN201420647149U CN204312071U CN 204312071 U CN204312071 U CN 204312071U CN 201420647149 U CN201420647149 U CN 201420647149U CN 204312071 U CN204312071 U CN 204312071U
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Abstract
The utility model discloses a kind of tunneling machine hydraulic control system and flow distributing system, relate to technical field of engineering machinery.Solve prior art and there is function singleness, cause the technical problem that operating efficiency is low.This tunneling machine hydraulic control system comprises hydraulic power unit and actuating unit, and hydraulic power unit is connected with actuating unit and can be enough to drive the power fluid force feed of actuating unit work for actuating unit input; Actuating unit at least comprises digging expects charge mechanism, walking mechanism, groove milling mechanism and perforating mechanism; Walking mechanism is connected with the vehicle frame of tunneling machine and tunneling machine can be driven to walk and/or turn.The flow distributing system that the utility model provides, flow distributing system is LUDV flow distributing system, and it comprises the tunneling machine hydraulic control system that the arbitrary technical scheme of the utility model embodiment provides.The utility model for strengthening the function of tunneling machine hydraulic control system, and promotes its efficiency and performance.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of tunneling machine hydraulic control system and arranges the flow distributing system of this tunneling machine hydraulic control system.
Background technology
During domestic subway construction, for the construction of platform, shield machine cannot complete, less special equipment can only be applied complete, some have correlation function common apparatus, as excavator, loader etc.) although instead of artificial to a certain extent, because of its function singleness, energy saving is not high, be difficult to realize composite move, the defects such as inefficiency, be difficult to meet tunneling operating mode.
The applicant finds: prior art at least exists following technical problem:
In prior art, because platform space-closed is narrow and small, the comparatively large and contaminated environment of diesel noise of equipment, the equipment of tunneling function that what integrated level was not high have, need multiple devices to combine construction, or use more human input, while bringing larger cost, efficiency of construction is extremely low, has a strong impact on programming.
Not only control accuracy is low in the start and stop of employing switch valve control executive item, and also can cause velocity jump, bring larger pressure oscillation, when load is excessive, structure is even damaged because of larger inertia.When carrying out governing speed with common flow valve control flow, Speed rigidity is not enough, and speed is vulnerable to the impact of load change, and composite move is difficult to realize.
Utility model content
One of them object of the present utility model proposes a kind of tunneling machine hydraulic control system and arranges the flow distributing system of this tunneling machine hydraulic control system, solves prior art and there is the technical problem that function singleness causes operating efficiency low.
Other technique effects (environmental protection and energy saving, manipulation flexibly, action accurate, safe and reliable) many that optimal technical scheme in many technical schemes that the utility model provides can produce refer to and hereafter set forth.
For achieving the above object, the utility model provides following technical scheme:
The tunneling machine hydraulic control system that the utility model embodiment provides, comprise hydraulic power unit and actuating unit, described hydraulic power unit is connected with described actuating unit and can is the power fluid pressure energy that the input of described actuating unit is enough to drive described actuating unit work;
Described actuating unit at least comprises digging expects charge mechanism, walking mechanism, groove milling mechanism and perforating mechanism; Described walking mechanism is connected with the vehicle frame of tunneling machine and described tunneling machine can be driven to walk and/or turn.
In preferably or alternatively embodiment, described actuating unit also comprises auxiliary whitewashing mechanism and/or mounting assist support mechanism, wherein:
Described auxiliary whitewashing mechanism is connected with shower nozzle and described shower nozzle can be driven to move;
Described mounting assist support mechanism is connected with anti-collapse support and can drives described anti-collapse support-moving.
In preferably or alternatively embodiment, described actuating unit also comprises material conveying mechanism and cooling body, wherein:
Described material conveying mechanism comprises feeding framework, drive and conveyer belt, and described drive is flexibly connected with described feeding framework, and described conveyer belt is connected with described drive and described drive can drive described conveyer belt to run;
Described cooling body comprises cooling fluid pressure motor and cooling fan, and the power output shaft of described cooling fluid pressure motor is connected with described cooling fan and described cooling fan can be driven to run.
In preferably or alternatively embodiment, described hydraulic power unit comprises main pump and pioneer pump, wherein:
Described main pump and described pioneer pump are connected mutually and by same motor driven;
Described main pump is at least connected with described Wa Liao mechanism, described charge mechanism, described walking mechanism, described groove milling mechanism, described perforating mechanism and the described auxiliary mechanism that whitewashes and the power fluid force feed that described main pump exports can drive described Wa Liao mechanism, described charge mechanism, described walking mechanism, described groove milling mechanism, described perforating mechanism and described auxiliary whitewashing institution staff;
Described pioneer pump is at least connected with guide's hydraulic control system, described cooling fluid pressure motor and the power fluid force feed that described pioneer pump exports can drive the work of described cooling fluid pressure motor.
In preferably or alternatively embodiment, described main pump is load-sensitive hydraulic pump, is also power intersection sensing hydraulic pump and invariable power hydraulic pump simultaneously;
Described pioneer pump is gear pump.
In preferably or alternatively embodiment, described actuating unit at least comprises left arm hydraulic control system, right arm hydraulic control system and material conveying hydraulic control system, wherein:
Material charge mechanism and described walking mechanism is dug described in described left arm hydraulic control system comprises, the described material charge mechanism that digs comprises swing arm cylinder, transition segment pitching cylinder, dipper cylinder, scraper bowl cylinder, movable arm swinging cylinder and dipper oscillating cylinder, and described walking mechanism comprises left running motor and right running motor;
Described right arm hydraulic control system at least comprises described groove milling mechanism, described perforating mechanism and described auxiliary whitewashing mechanism, described groove milling mechanism comprises milling head pitching cylinder, milling head oscillating cylinder, described auxiliary whitewashing mechanism comprises impactor propulsion cylinder, impactor, and described perforating mechanism comprises front triangle cylinder, Vee formation cylinder, drill boom extending cylinder, propeller extending cylinder, propeller pitching cylinder and drill boom oscillating cylinder;
Described material conveying hydraulic control system comprises conveyer belt tilt cylinder, material conveying scraper plate cylinder and drill boom telescoping cylinder, the movable part of described conveyer belt tilt cylinder is connected with described feeding framework, and the movable part of described material conveying scraper plate cylinder is connected with scraper plate and described scraper plate can be driven to be pushed on described conveyer belt by the bulk cargo on the folding frame of described tunneling machine.
In preferably or alternatively embodiment, described tunneling machine hydraulic control system also comprises nine banked direction control valves, six banked direction control valves, 5-linked banked direction control valves, three banked direction control valves, the first shuttle valve, the second shuttle valve and described guide's hydraulic control system, wherein:
The oil-in of described nine banked direction control valves is connected with the oil-out of described main pump, and the oil-out of described nine banked direction control valves is connected with described left arm hydraulic control system and fuel tank, and the LS of described nine banked direction control valves feeds back hydraulic fluid port and is connected with a LS control port of described main pump;
Described six banked direction control valves, described 5-linked banked direction control valves and described three banked direction control valves oil-in separately are all connected with described main pump, the LS feedback hydraulic fluid port of described six banked direction control valves and the LS of described 5-linked banked direction control valves feed back hydraulic fluid port and are connected with two oil-ins of described first shuttle valve respectively, the oil-out of described first shuttle valve is connected with an oil-in of described second shuttle valve, another oil-in of described second shuttle valve feeds back hydraulic fluid port with the LS of described three banked direction control valves and is connected, and the oil-out of described second shuttle valve is connected with another LS control port of described main pump;
The oil-out of described six banked direction control valves is connected with described perforating mechanism and fuel tank;
The oil-out of described 5-linked banked direction control valves is connected with described groove milling mechanism and fuel tank;
The oil-out of described three banked direction control valves is connected with described material conveying hydraulic control system and fuel tank;
The oil-out of described pioneer pump is connected with the oil-in of described guide's hydraulic control system, and the oil-out of described guide's hydraulic control system is connected with described nine banked direction control valves, described six banked direction control valves and described 5-linked banked direction control valves guide's hydraulic oil inlet separately.
In preferably or alternatively embodiment, described nine banked direction control valves are LUDV nine banked direction control valves, described six banked direction control valves are LUDV six banked direction control valves, and described 5-linked banked direction control valves is LUDV 5-linked banked direction control valves, and described three banked direction control valves are LUDV tri-banked direction control valves.
In preferably or alternatively embodiment, described guide's hydraulic control system comprises pilot valves, cooling oil path control valve, left arm pilot valves and right arm pilot valves, wherein:
Described pilot valves comprises high low speed transfer valve, right arm guide oil control valve and left arm guide oil control valve;
On the oil-out that described cooling oil path control valve is arranged on oil circuit between the oil-out of described pioneer pump and the oil-in of described cooling fluid pressure motor and described cooling fluid pressure motor and oil circuit between described high low speed transfer valve, described right arm guide oil control valve and described left arm guide oil control valve, and described cooling oil path control valve can control the break-make of its place oil circuit;
Described high low speed transfer valve be arranged on described cooling oil path control valve and described main pump height speed control port between oil circuit and described main pump height speed control port and fuel tank between oil circuit on;
Described right arm guide oil control valve is arranged on the oil circuit between described cooling oil path control valve and described right arm pilot valves and the oil circuit between described right arm pilot valves and fuel tank;
Described left arm guide oil control valve is arranged on the oil circuit between described cooling oil path control valve and described left arm pilot valves and the oil circuit between described left arm pilot valves and fuel tank;
Described right arm pilot valves is connected with described six banked direction control valves and described 5-linked banked direction control valves and the hydraulic oil flowing through described right arm guide oil control valve can be made to drive the break-make of described six banked direction control valves and each hydraulic fluid port of described 5-linked banked direction control valves;
Described left arm pilot valves is connected with described nine banked direction control valves and the hydraulic oil flowing through described left arm guide oil control valve can be made to drive the break-make of each hydraulic fluid port of described nine banked direction control valves.
In preferably or alternatively embodiment, when described high low speed transfer valve is in the first state, oil circuit conducting between the height speed control port of described cooling oil path control valve and described main pump, when described high low speed transfer valve is in the second state, the oil circuit conducting between the height speed control port of described main pump and fuel tank;
When described right arm guide oil control valve is in the first state, the oil circuit conducting between described cooling oil path control valve and described right arm pilot valves, when described right arm guide oil control valve is in the second state, the oil circuit conducting between described right arm pilot valves and fuel tank;
When described left arm guide oil control valve is in the first state, the oil circuit conducting between described cooling oil path control valve and described left arm pilot valves; When described left arm guide oil control valve is in the second state, the oil circuit conducting between described left arm pilot valves and fuel tank.
In preferably or alternatively embodiment, the oil circuit between described cooling oil path control valve and described pilot valves is also connected with accumulator and/or overflow valve, and the oil-out of described overflow valve is connected with described fuel tank.
In preferably or alternatively embodiment, described left arm pilot valves comprises the first pedal pilot valve, the second pedal pilot valve, left cross pilot valve, right cross pilot valve, the first direct acting cross pilot valve, and described first pedal pilot valve, described second pedal pilot valve, described left cross pilot valve, described right cross pilot valve and described first direct acting cross pilot valve are all connected with described nine banked direction control valves separately; Wherein:
Described first pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described left running motor action via described nine banked direction control valves;
Described second pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described right running motor action via described nine banked direction control valves;
Described left cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described movable arm swinging cylinder and the action of described dipper cylinder via described nine banked direction control valves;
Described right cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described swing arm cylinder and the action of described scraper bowl cylinder via described nine banked direction control valves;
Described first direct acting cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described dipper oscillating cylinder and the action of described transition segment pitching cylinder via described nine banked direction control valves.
In preferably or alternatively embodiment, described right arm pilot valves comprises the first friction and locates a word pilot valve, the second friction location one word pilot valve, the 3rd pedal pilot valve, the second direct acting cross pilot valve, duplex pilot valve and leveling knob, and described first friction location one word pilot valve, described second friction location one word pilot valve, described 3rd pedal pilot valve, described duplex pilot valve and described leveling knob are all connected with described 5-linked banked direction control valves separately; Wherein:
Described first friction location one word pilot valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described milling head cylinder via described 5-linked banked direction control valves;
Described second friction location one word pilot valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described impactor propulsion cylinder via described 5-linked banked direction control valves;
Described 3rd pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described impactor action via described 5-linked banked direction control valves;
Described duplex pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described milling head pitching cylinder and the action of described milling head oscillating cylinder via described 5-linked banked direction control valves;
Described second direct acting cross pilot valve is connected with described six banked direction control valves, can allow the hydraulic oil process that described hydraulic power unit exports when described leveling knob unscrews, and described second direct acting cross pilot valve can make to be exported by described hydraulic power unit and hydraulic oil through described leveling button drives described front triangle cylinder and the action of Vee formation cylinder via described six banked direction control valves.
In preferably or alternatively embodiment, described tunneling machine hydraulic control system comprises direct acting handle, described direct acting handle is provided with the drill boom oscillatory valve, the propeller that are all connected with described six banked direction control valves separately to extend valve, propeller pitching valve and drill boom and extend valve, wherein:
Described drill boom oscillatory valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described drill boom oscillating cylinder via described six banked direction control valves;
Described propeller extends valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described propeller extending cylinder via described six banked direction control valves;
Described propeller pitching valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described propeller pitching cylinder via described six banked direction control valves;
Described drill boom extends valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described drill boom extending cylinder via described six banked direction control valves.
In preferably or alternatively embodiment, described tunneling machine hydraulic control system also comprises automatically controlled button, and described automatically controlled button comprises stretch button, conveyer belt of drill boom and to tumble button and material conveying scraper plate button, wherein:
The described drill boom button that stretches is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described drill boom telescoping cylinder via described three banked direction control valves;
Described conveyer belt button of tumbling is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described conveyer belt tilt cylinder via described three banked direction control valves;
Described material conveying scraper plate button is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described material conveying scraper plate cylinder via described three banked direction control valves.
The flow distributing system that the utility model embodiment provides, described flow distributing system is LUDV flow distributing system, and it comprises the tunneling machine hydraulic control system that the arbitrary technical scheme of the utility model embodiment provides.
Based on technique scheme, the utility model embodiment at least can produce following technique effect:
The tunneling machine hydraulic control system that the utility model embodiment provides not only can realize digging material by digging material charge mechanism, charging, walking is realized by walking mechanism, turn (being preferably the turning of 360 °, original place), groove milling can also be realized respectively by groove milling mechanism and perforating mechanism, (optimal technical scheme that the utility model provides can also realize auxiliary whitewashing in punching, the functions such as mounting assist support), compared with prior art, the function that the utility model can realize more horn of plenty, powerful, with step or multiple function can be realized step by step, construction is combined without the need to multiple devices when carrying out tunneling operation, the human input used is few, construction cost is lower, operating efficiency is even more ideal, so solve prior art to there is function singleness, cause the technical problem that operating efficiency is low.
In addition; optimal technical scheme in many technical schemes that the utility model provides has environmental protection and energy saving (main because used LUDV control technology), manipulation than prior art, and (main because used ratio hydraulic control technology and selected the handle pilot valve, the pedal pilot valve that meet ergonomics), action are precisely (main because used the Independent fluxes distribution system irrelevant with load flexibly; be easy to realize composite move), the advantage of safe and reliable (main because main pump uses power to intersect sensing technology, available protecting motor and system).
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
The schematic diagram of annexation between the chief component of the tunneling machine hydraulic control system that Fig. 1 provides for the utility model embodiment;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 2 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 3 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 4 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 5 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 6 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 7 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 8 provides for the embodiment of the utility model shown in Fig. 1;
The close-up schematic view of the tunneling machine hydraulic control system that Fig. 9 provides for the embodiment of the utility model shown in Fig. 1;
1, hydraulic power unit; 2, actuating unit; 21, cooling fluid pressure motor; 31, LUDV nine banked direction control valves; 32, LUDV six banked direction control valves; 33, LUDV 5-linked banked direction control valves; 34, LUDV tri-banked direction control valves; 351, the first shuttle valve; 352, the second shuttle valve; 41, high low speed transfer valve; 42, right arm guide oil control valve; 43, left arm guide oil control valve; 51, cooling oil path control valve; 52, accumulator; 53, overflow valve; SX, the fast control port of height; XS, the fast control port of height.
Detailed description of the invention
Content of the present utility model and the distinctive points between the utility model and prior art can be understood below with reference to accompanying drawing Fig. 1 ~ Fig. 9 and word content.Hereafter by accompanying drawing and the mode enumerating embodiment more of the present utility model, the technical solution of the utility model (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characteristic in the present embodiment, any technical scheme is all one or more in the technical characteristic of plurality of optional or optional technical scheme, cannot exhaustive all alternative technical characteristics of the present utility model and alternative technical scheme in order to describe succinct to need in presents, also the embodiment being not easy to each technical characteristic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means that the utility model can be provided carries out two or more technological means any of replacing or being provided by the utility model or technical characteristic carries out mutually combining and obtaining new technical scheme.Any technical characteristic in the present embodiment and any technical scheme all do not limit protection domain of the present utility model, protection domain of the present utility model should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art two or more technological means any that the utility model is provided or the technical characteristic new technical scheme carrying out mutually combining and obtain.
The utility model embodiment provides a kind of feature richness, powerful and environmental protection and energy saving, manipulation is flexible, action is accurate, safe and reliable tunneling machine hydraulic control system and arranges the flow distributing system of this tunneling machine hydraulic control system.
Below in conjunction with the elaboration that Fig. 1 ~ Fig. 9 carries out specifically to the technical scheme that the utility model provides.
As shown in Fig. 1 ~ Fig. 9, the tunneling machine hydraulic control system that the utility model embodiment provides comprises hydraulic power unit (being preferably three hydraulic pumps) 1 and actuating unit 2, and hydraulic power unit 1 is connected with actuating unit 2 and can inputs for actuating unit 2 the power fluid force feed being enough to drive actuating unit 2 to work.
Actuating unit 2 at least comprises digging expects charge mechanism, walking mechanism, groove milling mechanism and perforating mechanism.Walking mechanism is connected with the vehicle frame of tunneling machine and tunneling machine can be driven to walk and/or turn.
The tunneling machine hydraulic control system that the utility model embodiment provides not only can realize digging material by digging material charge mechanism, charging, walking is realized by walking mechanism, turn (being preferably the turning of 360 °, original place), groove milling can also be realized respectively by groove milling mechanism and perforating mechanism, (optimal technical scheme that the utility model provides can also realize auxiliary whitewashing in punching, the functions such as mounting assist support), compared with prior art, the utility model feature richness, powerful, construction is combined without the need to multiple devices when carrying out tunneling operation, the human input used is few, reduce construction cost, improve operating efficiency.
As preferably or alternatively embodiment, actuating unit 2 also comprises auxiliary whitewashing mechanism and/or mounting assist support mechanism, wherein:
Auxiliary whitewashing mechanism is connected with shower nozzle and shower nozzle can be driven to move.
Mounting assist support mechanism is connected with anti-collapse support and can drives anti-collapse support-moving.
The auxiliary spray operation that auxiliary whitewashing mechanism drives shower nozzle to carry out can support reinforcement tunnel, ensures groove milling, drilling operation safety carries out smoothly.Mounting assist support mechanism can by anti-collapse mount in proper position to avoid occurring landslide problem in tunneling operation process.
As preferably or alternatively embodiment, actuating unit 2 also comprises material conveying mechanism and cooling body, wherein:
Material conveying mechanism comprises feeding framework, drive and conveyer belt, and drive is flexibly connected with feeding framework, and conveyer belt is connected with drive and drive can drive conveyer belt to run.
Cooling body comprises cooling fluid pressure motor 3 and cooling fan, and the power output shaft of cooling fluid pressure motor 3 is connected with cooling fan and cooling fan can be driven to run.
The material slag of excavation can be transported to desired location by conveyer belt by material conveying mechanism.Cooling body can produce by cooling fan the object that air flow carries out being embodied as the cooling of tunneling machine hydraulic system.
As preferably or alternatively embodiment, hydraulic power unit 1 comprises main pump and pioneer pump, wherein:
Main pump and pioneer pump are connected mutually and are driven by same motor (can be Diesel engine, petrol engine or motor).
Main pump is at least connected with Wa Liao mechanism, charge mechanism, walking mechanism, groove milling mechanism, perforating mechanism and the auxiliary mechanism that whitewashes and the power fluid force feed that main pump exports can drive Wa Liao mechanism, charge mechanism, walking mechanism, groove milling mechanism, perforating mechanism and auxiliary institution staff of whitewashing.
Pioneer pump is at least connected with pilot system with cooling fluid pressure motor 3 and the power fluid force feed exported can drive cooling fluid pressure motor 3 and pilot system work.
The driving that above-mentioned structure uses a prime mover just can realize whole tunneling machine, is conducive to the power making full use of a prime mover, and then realizes the driving to different executing agency with lower cost.
As preferably or alternatively embodiment, main pump is load-sensitive hydraulic pump, is also power intersection sensing hydraulic pump and invariable power hydraulic pump simultaneously.Pioneer pump is gear pump.
The hydraulic pump of above-mentioned structure has the advantage of environmental protection and energy saving.
Power fluid Ore-controlling Role in the tunneling machine hydraulic control system that the present embodiment provides comprises three string pumps of three hydraulic pump compositions, main pump is connected by two hydraulic pumps, two hydraulic pumps are respectively the first main pump (can claim: large pump) and the second main pump (can claim: little pump), large pump is load-sensitive+power intersection sensing+invariable power hydraulic pump, for left arm and walking provide power; Little pump is load-sensitive+invariable power hydraulic pump, for right arm and material conveying device provide power.Pioneer pump is gear pump, for pilot system, cooling system provide power.
As preferably or alternatively embodiment, actuating unit 2 at least comprises left arm hydraulic control system, right arm hydraulic control system (left and right exchange technical scheme also within protection domain of the present utility model) and material conveying hydraulic control system, wherein:
Left arm hydraulic control system comprises digging expects charge mechanism and walking mechanism, and dig material charge mechanism and comprise swing arm cylinder, transition segment pitching cylinder, dipper cylinder, scraper bowl cylinder, movable arm swinging cylinder and dipper oscillating cylinder, walking mechanism comprises left running motor and right running motor.
Right arm hydraulic control system at least comprises groove milling mechanism, perforating mechanism and auxiliary whitewashing mechanism (preferably also comprising mounting assist support mechanism), groove milling mechanism comprises milling head pitching cylinder, milling head oscillating cylinder, auxiliary whitewashing mechanism comprises impactor propulsion cylinder, impactor, and perforating mechanism comprises front triangle cylinder, Vee formation cylinder, drill boom extending cylinder, propeller extending cylinder, propeller pitching cylinder and drill boom oscillating cylinder.
Material conveying hydraulic control system comprises conveyer belt tilt cylinder, material conveying scraper plate cylinder and drill boom telescoping cylinder, the movable part of conveyer belt tilt cylinder is connected with feeding framework, and the movable part of material conveying scraper plate cylinder is connected with scraper plate and scraper plate can be driven to be pushed on conveyer belt by the bulk cargo on the folding frame of tunneling machine.
Left arm hydraulic control system realizes walking and turnings of 360 °, original place by left and right two running motor, by the oil cylinders such as swing arm, transition segment pitching cylinder, dipper cylinder, scraper bowl cylinder, movable arm swinging cylinder and dipper oscillating cylinder separately or composite move realization dig the functions such as material, charging.
Right arm hydraulic control system realizes the functions such as right arm leveling, boring, milling, auxiliary whitewashing by executive items such as forward and backward triangle cylinder, drill boom extending cylinder, propeller extending cylinder, propeller pitching cylinder, drill boom oscillating cylinder, milling head pitching cylinder, milling head oscillating cylinder, impactor propulsion cylinder, impactors.
Material conveying hydraulic control system can realize adjustment conveyer belt and ground angle by conveyer belt tilt cylinder (or claim: pitching cylinder); Material conveying scraper plate cylinder (or claim: baffle plate cylinder) bulk cargo be scattered in folding frame can be realized to focus on conveyer belt; Drill boom cylinder realizes left and right arm function and switches.
As preferably or alternatively embodiment, tunneling machine hydraulic control system also comprises banked direction control valves, and banked direction control valves comprises nine banked direction control valves, six banked direction control valves, 5-linked banked direction control valves and three banked direction control valves.Nine banked direction control valves are preferably that LUDV nine banked direction control valves 31, six banked direction control valves is preferably LUDV six banked direction control valves 32,5-linked banked direction control valves is preferably LUDV 5-linked banked direction control valves 33, three banked direction control valves and is preferably LUDV tri-banked direction control valves 34.Certainly, nine banked direction control valves, six banked direction control valves, 5-linked banked direction control valves and three banked direction control valves also can all adopt LS banked direction control valves.
In the present embodiment, tunneling machine hydraulic control system also comprises the first shuttle valve 351, second shuttle valve 352 and guide's hydraulic control system, wherein: main pump preferably comprises the first main pump and the second main pump.
The oil-in of LUDV nine banked direction control valves 31 is connected with the oil-out of main pump (can be the first main pump), the oil-out of LUDV nine banked direction control valves 31 is connected with left arm hydraulic control system and fuel tank, and the LS of LUDV nine banked direction control valves 31 feeds back hydraulic fluid port and is connected with a LS control port (this LS control port can be the LS control port of the first main pump) of main pump.
LUDV six banked direction control valves 32, LUDV 5-linked banked direction control valves 33 and the respective oil-in of LUDV tri-banked direction control valves 34 are all connected with main pump (can be the second main pump), the LS feedback hydraulic fluid port of LUDV six banked direction control valves 32 and the LS of LUDV 5-linked banked direction control valves 33 feed back hydraulic fluid port and are connected with two oil-ins of the first shuttle valve 351 respectively, the oil-out of the first shuttle valve 351 is connected with an oil-in of the second shuttle valve 352, another oil-in of second shuttle valve 352 feeds back hydraulic fluid port with the LS of LUDV tri-banked direction control valves 34 and is connected, the oil-out of the second shuttle valve 352 is connected with another LS control port (this LS control port can be the LS control port of the second main pump) of main pump.
The oil-out of LUDV six banked direction control valves 32 is connected with perforating mechanism and fuel tank.
The oil-out of LUDV 5-linked banked direction control valves 33 is connected with groove milling mechanism and fuel tank.
The oil-out of LUDV tri-banked direction control valves 34 is connected with material conveying hydraulic control system and fuel tank.
The oil-out of pioneer pump is connected with the oil-in of guide's hydraulic control system, and guide's hydraulic oil inlet that the oil-out of guide's hydraulic control system is respective with LUDV nine banked direction control valves 31, LUDV six banked direction control valves 32 and LUDV 5-linked banked direction control valves 33 is connected.
Above-mentioned the utility model LUDV banked direction control valves all have employed valve post-compensation technology and not only ensures the steady of actuator speed when flow is sufficient, and when flow system flow is not enough, the proportional minimizing of speed of composite move, a certain action can not be made to stop, and function is substantially unaffected.
Certainly, use valve precompensation technology also within protection domain of the present utility model.Valve precompensation technology can ensure the actuator speed of service not by the impact of load change, but cannot ensure that the smooth and easy of composite move completes when flow system flow is not enough.
As preferably or alternatively embodiment, guide's hydraulic control system comprises pilot valves, cooling oil path control valve 51, left arm pilot valves and right arm pilot valves, wherein:
Pilot valves comprises high low speed transfer valve 41, right arm guide oil control valve 42 and left arm guide oil control valve 43.
On the oil-out that cooling oil path control valve 51 is arranged on oil circuit between the oil-out of pioneer pump and the oil-in of cooling fluid pressure motor 3 and cooling fluid pressure motor 3 and oil circuit between high low speed transfer valve 41, right arm guide oil control valve 42 and left arm guide oil control valve 43, and cooling oil path control valve 51 can control the break-make of its place oil circuit.
High low speed transfer valve 41 is arranged on the oil circuit between the control port of height speed SX, XS of cooling oil path control valve 51 and main pump and the oil circuit between height speed control port SX, XS of main pump and fuel tank.
Right arm guide oil control valve 42 is arranged on the oil circuit between cooling oil path control valve 51 and right arm pilot valves and the oil circuit between right arm pilot valves and fuel tank.
Left arm guide oil control valve 43 is arranged on the oil circuit between cooling oil path control valve 51 and left arm pilot valves and the oil circuit between left arm pilot valves and fuel tank.
Right arm pilot valves is connected with LUDV six banked direction control valves 32 and LUDV 5-linked banked direction control valves 33 and the hydraulic oil flowing through right arm guide oil control valve 42 can be made to drive the break-make of LUDV six banked direction control valves 32 and each hydraulic fluid port of LUDV 5-linked banked direction control valves 33.
Left arm pilot valves is connected with LUDV nine banked direction control valves 31 and the hydraulic oil flowing through left arm guide oil control valve 43 can be made to drive the break-make of each hydraulic fluid port of LUDV nine banked direction control valves 31.
Guide's hydraulic control system (see Fig. 5) in the tunneling machine hydraulic control system that the utility model embodiment provides comprises pilot valves, pilot valves realizes that the high low speed of walking switches, left and right arms action switches and interlocking, pilot pressure with stationary value lower than cooling pressure, cooling fan rotating.
Cooling oil path control valve 51 can enter cooling fluid pressure motor 3 from which hydraulic fluid port by hydraulic control oil, and then can the rotation direction of controlled cooling model hydraulic motor 3 power output shaft and cooling fan rotating direction.
As preferably or alternatively embodiment, when high low speed transfer valve 41 is in the first state (being left position in Fig. 1), the oil circuit conducting between the control port of height speed SX, XS of cooling oil path control valve 51 and main pump, when high low speed transfer valve 41 is in the second state (being right position in Fig. 1), the oil circuit conducting between height speed control port SX, XS of main pump and fuel tank.
High low speed switching of walking can be realized by the state controlling high low speed transfer valve 41.
When right arm guide oil control valve 42 is in the first state (being left position in Fig. 1), oil circuit conducting between cooling oil path control valve 51 and right arm pilot valves, when right arm guide oil control valve 42 is in the second state (being right position in Fig. 1), the oil circuit conducting between right arm pilot valves and fuel tank.
When left arm guide oil control valve 43 is in the first state (being left position in Fig. 1), the oil circuit conducting between cooling oil path control valve 51 and left arm pilot valves.When left arm guide oil control valve 43 is in the second state (being right position in Fig. 1), the oil circuit conducting between left arm pilot valves and fuel tank.
Left and right arms action can be realized by the state controlling right arm guide oil control valve 42 and left arm guide oil control valve 43 to switch and interlocking.
Pilot pressure can be realized by overflow valve 53 lower than cooling pressure with stationary value.
As preferably or alternatively embodiment, the oil circuit between cooling oil path control valve 51 and pilot valves is also connected with accumulator 52 and/or overflow valve 53, the oil-out of overflow valve 53 is connected with fuel tank.
Accumulator 52 can continue energy too much in guide's hydraulic oil so that carry out pressure compensation when first drain oil pressure is lower to guide's hydraulic oil.
Overflow valve 53 can guarantee the pressure of the power fluid force feed that the force value of guide's hydraulic oil exports lower than cooling fluid pressure motor 3.
As preferably or alternatively embodiment, high low speed transfer valve 41, right arm guide oil control valve 42 and left arm guide oil control valve 43 are two-bit triplet electromagnetic valve.Two-bit triplet electromagnetic valve has the advantage that structure is simple, be convenient to connection, control.The utility model is provided with special control button to control the state of two-bit triplet electromagnetic valve.
As preferably or alternatively embodiment, left arm pilot valves comprises the first pedal pilot valve, the second pedal pilot valve, left cross pilot valve, right cross pilot valve, the first direct acting cross pilot valve, and the first pedal pilot valve, the second pedal pilot valve, left cross pilot valve, right cross pilot valve and the first direct acting cross pilot valve are all connected with LUDV nine banked direction control valves 31 separately.Wherein:
First pedal pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive left running motor action via LUDV nine banked direction control valves 31.
Second pedal pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive right running motor action via LUDV nine banked direction control valves 31.
Left cross pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive movable arm swinging cylinder and the action of dipper cylinder via LUDV nine banked direction control valves 31.
Right cross pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive swing arm cylinder and the action of scraper bowl cylinder via LUDV nine banked direction control valves 31.
First direct acting cross pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive dipper oscillating cylinder and the action of transition segment pitching cylinder via LUDV nine banked direction control valves 31.
Left cross pilot valve can control dipper and swing up and down, and swing arm swings.Right cross pilot valve can control swing arm scraper bowl and swing up and down.First direct acting cross pilot valve: control transition segment pitching and dipper swing.
As preferably or alternatively embodiment, right arm pilot valves comprises the first friction and locates a word pilot valve, the second friction location one word pilot valve, the 3rd pedal pilot valve, the second direct acting cross pilot valve, duplex pilot valve and leveling knob, and the first friction location one word pilot valve, the second friction location one word pilot valve, the 3rd pedal pilot valve, duplex pilot valve and leveling knob are all connected with LUDV 5-linked banked direction control valves 33 separately.Wherein:
First friction location one word pilot valve can make the hydraulic oil exported by hydraulic power unit 1 via the action of LUDV 5-linked banked direction control valves 33 driving milling head cylinder.
Second friction location one word pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive the action of impactor propulsion cylinder via LUDV 5-linked banked direction control valves 33.
3rd pedal pilot valve can make the hydraulic oil exported by hydraulic power unit 1 drive impactor action via LUDV 5-linked banked direction control valves 33.
Duplex pilot valve can make the hydraulic oil exported by hydraulic power unit 1 via LUDV 5-linked banked direction control valves 33 driving milling head pitching cylinder and the action of milling head oscillating cylinder.
Second direct acting cross pilot valve is connected with LUDV six banked direction control valves 32, can allow the hydraulic oil process that hydraulic power unit 1 exports when leveling knob unscrews, and the second direct acting cross pilot valve can make to be exported by hydraulic power unit 1 and hydraulic oil through leveling button drives front triangle cylinder and the action of Vee formation cylinder via LUDV six banked direction control valves 32.
In three pedal pilot valves, the first pedal pilot valve, the second pedal pilot valve control running motor craspedodrome, left and right turning, and the 3rd pedal pilot valve controls impactor and impacts.
Second direct acting cross pilot valve can control right arm action up and down.Duplex pilot valve: the pitching and the swing that control milling head.First friction location one word pilot valve by adjustment pilot valve angle, can regulate milling head rotating speed, and pilot valve angle does not need artificial continuing to maintain.Second friction location one word pilot valve can control impactor and advances advance and retreat, and pilot valve angle does not need artificial continuing to maintain.Leveling knob and the second direct acting cross pilot valve can coordinations, regulate the level of right arm.
As preferably or alternatively embodiment, tunneling machine hydraulic control system comprises direct acting handle, direct acting handle is provided with the drill boom oscillatory valve, the propeller that are all connected with LUDV six banked direction control valves 32 separately to extend valve, propeller pitching valve and drill boom and extend valve, wherein:
Drill boom oscillatory valve can make the hydraulic oil exported by hydraulic power unit 1 drive the action of drill boom oscillating cylinder via LUDV six banked direction control valves 32.
Propeller extends valve can make the hydraulic oil exported by hydraulic power unit 1 drive the action of propeller extending cylinder via LUDV six banked direction control valves 32.
Propeller pitching valve can make the hydraulic oil exported by hydraulic power unit 1 drive the action of propeller pitching cylinder via LUDV six banked direction control valves 32.
Drill boom extends valve can make the hydraulic oil exported by hydraulic power unit 1 drive the action of drill boom extending cylinder via LUDV six banked direction control valves 32.
When being arranged on direct acting handle by above-mentioned valve, direct acting handle has and manipulates advantage flexibly.
As preferably or alternatively embodiment, tunneling machine hydraulic control system also comprises automatically controlled button, and automatically controlled button comprises stretch button, conveyer belt of drill boom and to tumble button and material conveying scraper plate button, wherein:
The drill boom button that stretches is connected with LUDV tri-banked direction control valves 34 and the hydraulic oil exported by hydraulic power unit 1 can be made to drive the action of drill boom telescoping cylinder via LUDV tri-banked direction control valves 34.
Conveyer belt button of tumbling is connected with LUDV tri-banked direction control valves 34 and the hydraulic oil exported by hydraulic power unit 1 can be made to drive the action of conveyer belt tilt cylinder via LUDV tri-banked direction control valves 34.
Material conveying scraper plate button is connected with LUDV tri-banked direction control valves 34 and the hydraulic oil exported by hydraulic power unit 1 can be made to drive the action of material conveying scraper plate cylinder via LUDV tri-banked direction control valves 34.
Adopt automatically controlled button control material conveying mechanism to have and control sensitive advantage.
The flow distributing system that the utility model embodiment provides, flow distributing system is LUDV flow distributing system, and it comprises the tunneling machine hydraulic control system that the arbitrary technical scheme of the utility model provides.
The valve post-compensation technology that LUDV flow distributing system adopts not only ensures the steady of actuator speed when flow is sufficient, and when flow system flow is not enough, the proportional minimizing of speed of composite move, can not make a certain action stop, function is substantially unaffected, is easy to realize composite move.
Above-mentioned arbitrary technical scheme disclosed in the utility model unless otherwise stated, if the number range of it discloses, so disclosed number range is preferred number range, anyly it should be appreciated by those skilled in the art: preferred number range is only the numerical value that in many enforceable numerical value, technique effect is obvious or representative.Because numerical value is more, cannot be exhaustive, so the utility model just discloses component values to illustrate the technical solution of the utility model, and the above-mentioned numerical value enumerated should not form restriction the utility model being created to protection domain.
If employ the word such as " first ", " second " herein to limit component, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe carry out difference as not having outside Stated otherwise to component, the implication that above-mentioned word is not special.
Simultaneously, if above-mentioned the utility model discloses or relate to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can releasably be fixedly connected with (such as using bolt or screw to connect), also can be understood as: to be non-removablely fixedly connected with (such as rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (such as use casting technique is integrally formed create) (obviously cannot adopt except integrally formed technique).
In addition, apply in arbitrary technical scheme disclosed in above-mentioned the utility model for represent position relationship or shape term unless otherwise stated its implication comprise approximate with it, similar or close state or shape.Arbitrary parts that the utility model provides both can be assembled by multiple independent ingredient, and also can be one of the forming manufacture technics separate part out.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (16)
1. a tunneling machine hydraulic control system, is characterized in that, comprises hydraulic power unit and actuating unit, and described hydraulic power unit is connected with described actuating unit and can is the power fluid pressure energy that the input of described actuating unit is enough to drive described actuating unit work;
Described actuating unit at least comprises digging expects charge mechanism, walking mechanism, groove milling mechanism and perforating mechanism; Described walking mechanism is connected with the vehicle frame of tunneling machine and described tunneling machine can be driven to walk and/or turn.
2. tunneling machine hydraulic control system according to claim 1, is characterized in that, described actuating unit also comprises auxiliary whitewashing mechanism and/or mounting assist support mechanism, wherein:
Described auxiliary whitewashing mechanism is connected with shower nozzle and described shower nozzle can be driven to move;
Described mounting assist support mechanism is connected with anti-collapse support and can drives described anti-collapse support-moving.
3. tunneling machine hydraulic control system according to claim 2, it is characterized in that, described actuating unit also comprises material conveying mechanism and cooling body, wherein:
Described material conveying mechanism comprises feeding framework, drive and conveyer belt, and described drive is flexibly connected with described feeding framework, and described conveyer belt is connected with described drive and described drive can drive described conveyer belt to run;
Described cooling body comprises cooling fluid pressure motor and cooling fan, and the power output shaft of described cooling fluid pressure motor is connected with described cooling fan and described cooling fan can be driven to run.
4. tunneling machine hydraulic control system according to claim 3, it is characterized in that, described hydraulic power unit comprises main pump and pioneer pump, wherein:
Described main pump and described pioneer pump are connected mutually and by same motor driven;
Described main pump is at least connected with described Wa Liao mechanism, described charge mechanism, described walking mechanism, described groove milling mechanism, described perforating mechanism and the described auxiliary mechanism that whitewashes and the power fluid force feed that described main pump exports can drive described Wa Liao mechanism, described charge mechanism, described walking mechanism, described groove milling mechanism, described perforating mechanism and described auxiliary whitewashing institution staff;
Described pioneer pump is at least connected with guide's hydraulic control system, described cooling fluid pressure motor and the power fluid force feed that described pioneer pump exports can drive the work of described cooling fluid pressure motor.
5. tunneling machine hydraulic control system according to claim 4, is characterized in that, described main pump is load-sensitive hydraulic pump, is also power intersection sensing hydraulic pump and invariable power hydraulic pump simultaneously;
Described pioneer pump is gear pump.
6. tunneling machine hydraulic control system according to claim 4, is characterized in that, described actuating unit at least comprises left arm hydraulic control system, right arm hydraulic control system and material conveying hydraulic control system, wherein:
Material charge mechanism and described walking mechanism is dug described in described left arm hydraulic control system comprises, the described material charge mechanism that digs comprises swing arm cylinder, transition segment pitching cylinder, dipper cylinder, scraper bowl cylinder, movable arm swinging cylinder and dipper oscillating cylinder, and described walking mechanism comprises left running motor and right running motor;
Described right arm hydraulic control system at least comprises described groove milling mechanism, described perforating mechanism and described auxiliary whitewashing mechanism, described groove milling mechanism comprises milling head pitching cylinder, milling head oscillating cylinder, described auxiliary whitewashing mechanism comprises impactor propulsion cylinder, impactor, and described perforating mechanism comprises front triangle cylinder, Vee formation cylinder, drill boom extending cylinder, propeller extending cylinder, propeller pitching cylinder and drill boom oscillating cylinder;
Described material conveying hydraulic control system comprises conveyer belt tilt cylinder, material conveying scraper plate cylinder and drill boom telescoping cylinder, the movable part of described conveyer belt tilt cylinder is connected with described feeding framework, and the movable part of described material conveying scraper plate cylinder is connected with scraper plate and described scraper plate can be driven to be pushed on described conveyer belt by the bulk cargo on the folding frame of described tunneling machine.
7. tunneling machine hydraulic control system according to claim 6, it is characterized in that, described tunneling machine hydraulic control system also comprises nine banked direction control valves, six banked direction control valves, 5-linked banked direction control valves, three banked direction control valves, the first shuttle valve, the second shuttle valve and described guide's hydraulic control system, wherein:
The oil-in of described nine banked direction control valves is connected with the oil-out of described main pump, and the oil-out of described nine banked direction control valves is connected with described left arm hydraulic control system and fuel tank, and the LS of described nine banked direction control valves feeds back hydraulic fluid port and is connected with a LS control port of described main pump;
Described six banked direction control valves, described 5-linked banked direction control valves and described three banked direction control valves oil-in separately are all connected with described main pump, the LS feedback hydraulic fluid port of described six banked direction control valves and the LS of described 5-linked banked direction control valves feed back hydraulic fluid port and are connected with two oil-ins of described first shuttle valve respectively, the oil-out of described first shuttle valve is connected with an oil-in of described second shuttle valve, another oil-in of described second shuttle valve feeds back hydraulic fluid port with the LS of described three banked direction control valves and is connected, and the oil-out of described second shuttle valve is connected with another LS control port of described main pump;
The oil-out of described six banked direction control valves is connected with described perforating mechanism and fuel tank;
The oil-out of described 5-linked banked direction control valves is connected with described groove milling mechanism and fuel tank;
The oil-out of described three banked direction control valves is connected with described material conveying hydraulic control system and fuel tank;
The oil-out of described pioneer pump is connected with the oil-in of described guide's hydraulic control system, and the oil-out of described guide's hydraulic control system is connected with described nine banked direction control valves, described six banked direction control valves and described 5-linked banked direction control valves guide's hydraulic oil inlet separately.
8. tunneling machine hydraulic control system according to claim 7, it is characterized in that, described nine banked direction control valves are LUDV nine banked direction control valves, described six banked direction control valves are LUDV six banked direction control valves, and described 5-linked banked direction control valves is LUDV 5-linked banked direction control valves, and described three banked direction control valves are LUDV tri-banked direction control valves.
9. tunneling machine hydraulic control system according to claim 7, is characterized in that, described guide's hydraulic control system comprises pilot valves, cooling oil path control valve, left arm pilot valves and right arm pilot valves, wherein:
Described pilot valves comprises high low speed transfer valve, right arm guide oil control valve and left arm guide oil control valve;
On the oil-out that described cooling oil path control valve is arranged on oil circuit between the oil-out of described pioneer pump and the oil-in of described cooling fluid pressure motor and described cooling fluid pressure motor and oil circuit between described high low speed transfer valve, described right arm guide oil control valve and described left arm guide oil control valve, and described cooling oil path control valve can control the break-make of its place oil circuit;
Described high low speed transfer valve be arranged on described cooling oil path control valve and described main pump height speed control port between oil circuit and described main pump height speed control port and fuel tank between oil circuit on;
Described right arm guide oil control valve is arranged on the oil circuit between described cooling oil path control valve and described right arm pilot valves and the oil circuit between described right arm pilot valves and fuel tank;
Described left arm guide oil control valve is arranged on the oil circuit between described cooling oil path control valve and described left arm pilot valves and the oil circuit between described left arm pilot valves and fuel tank;
Described right arm pilot valves is connected with described six banked direction control valves and described 5-linked banked direction control valves and the hydraulic oil flowing through described right arm guide oil control valve can be made to drive the break-make of described six banked direction control valves and each hydraulic fluid port of described 5-linked banked direction control valves;
Described left arm pilot valves is connected with described nine banked direction control valves and the hydraulic oil flowing through described left arm guide oil control valve can be made to drive the break-make of each hydraulic fluid port of described nine banked direction control valves.
10. tunneling machine hydraulic control system according to claim 9, it is characterized in that, when described high low speed transfer valve is in the first state, oil circuit conducting between the height speed control port of described cooling oil path control valve and described main pump, when described high low speed transfer valve is in the second state, the oil circuit conducting between the height speed control port of described main pump and fuel tank;
When described right arm guide oil control valve is in the first state, the oil circuit conducting between described cooling oil path control valve and described right arm pilot valves, when described right arm guide oil control valve is in the second state, the oil circuit conducting between described right arm pilot valves and fuel tank;
When described left arm guide oil control valve is in the first state, the oil circuit conducting between described cooling oil path control valve and described left arm pilot valves; When described left arm guide oil control valve is in the second state, the oil circuit conducting between described left arm pilot valves and fuel tank.
11. tunneling machine hydraulic control systems according to claim 9, is characterized in that, the oil circuit between described cooling oil path control valve and described pilot valves is also connected with accumulator and/or overflow valve, and the oil-out of described overflow valve is connected with described fuel tank.
12. tunneling machine hydraulic control systems according to claim 9, it is characterized in that, described left arm pilot valves comprises the first pedal pilot valve, the second pedal pilot valve, left cross pilot valve, right cross pilot valve, the first direct acting cross pilot valve, and described first pedal pilot valve, described second pedal pilot valve, described left cross pilot valve, described right cross pilot valve and described first direct acting cross pilot valve are all connected with described nine banked direction control valves separately; Wherein:
Described first pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described left running motor action via described nine banked direction control valves;
Described second pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described right running motor action via described nine banked direction control valves;
Described left cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described movable arm swinging cylinder and the action of described dipper cylinder via described nine banked direction control valves;
Described right cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described swing arm cylinder and the action of described scraper bowl cylinder via described nine banked direction control valves;
Described first direct acting cross pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described dipper oscillating cylinder and the action of described transition segment pitching cylinder via described nine banked direction control valves.
13. tunneling machine hydraulic control systems according to claim 9, it is characterized in that, described right arm pilot valves comprises the first friction and locates a word pilot valve, the second friction location one word pilot valve, the 3rd pedal pilot valve, the second direct acting cross pilot valve, duplex pilot valve and leveling knob, and described first friction location one word pilot valve, described second friction location one word pilot valve, described 3rd pedal pilot valve, described duplex pilot valve and described leveling knob are all connected with described 5-linked banked direction control valves separately; Wherein:
Described first friction location one word pilot valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described milling head cylinder via described 5-linked banked direction control valves;
Described second friction location one word pilot valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described impactor propulsion cylinder via described 5-linked banked direction control valves;
Described 3rd pedal pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described impactor action via described 5-linked banked direction control valves;
Described duplex pilot valve can make the hydraulic oil exported by described hydraulic power unit drive described milling head pitching cylinder and the action of described milling head oscillating cylinder via described 5-linked banked direction control valves;
Described second direct acting cross pilot valve is connected with described six banked direction control valves, can allow the hydraulic oil process that described hydraulic power unit exports when described leveling knob unscrews, and described second direct acting cross pilot valve can make to be exported by described hydraulic power unit and hydraulic oil through described leveling button drives described front triangle cylinder and the action of Vee formation cylinder via described six banked direction control valves.
14. tunneling machine hydraulic control systems according to claim 9, it is characterized in that, described tunneling machine hydraulic control system comprises direct acting handle, described direct acting handle is provided with the drill boom oscillatory valve, the propeller that are all connected with described six banked direction control valves separately to extend valve, propeller pitching valve and drill boom and extend valve, wherein:
Described drill boom oscillatory valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described drill boom oscillating cylinder via described six banked direction control valves;
Described propeller extends valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described propeller extending cylinder via described six banked direction control valves;
Described propeller pitching valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described propeller pitching cylinder via described six banked direction control valves;
Described drill boom extends valve can make the hydraulic oil exported by described hydraulic power unit drive the action of described drill boom extending cylinder via described six banked direction control valves.
15. tunneling machine hydraulic control systems according to claim 9, is characterized in that, described tunneling machine hydraulic control system also comprises automatically controlled button, and described automatically controlled button comprises stretch button, conveyer belt of drill boom and to tumble button and material conveying scraper plate button, wherein:
The described drill boom button that stretches is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described drill boom telescoping cylinder via described three banked direction control valves;
Described conveyer belt button of tumbling is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described conveyer belt tilt cylinder via described three banked direction control valves;
Described material conveying scraper plate button is connected with described three banked direction control valves and the hydraulic oil exported by described hydraulic power unit can be made to drive the action of described material conveying scraper plate cylinder via described three banked direction control valves.
16. 1 kinds of flow distributing systems, is characterized in that, described flow distributing system is LUDV flow distributing system, and it comprises the arbitrary described tunneling machine hydraulic control system of claim 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647149.4U CN204312071U (en) | 2014-10-31 | 2014-10-31 | Tunneling machine hydraulic control system and flow distributing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647149.4U CN204312071U (en) | 2014-10-31 | 2014-10-31 | Tunneling machine hydraulic control system and flow distributing system |
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| CN204312071U true CN204312071U (en) | 2015-05-06 |
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|---|---|---|---|
| CN201420647149.4U Withdrawn - After Issue CN204312071U (en) | 2014-10-31 | 2014-10-31 | Tunneling machine hydraulic control system and flow distributing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626079A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Underground excavation machine hydraulic control system and flow distribution system |
-
2014
- 2014-10-31 CN CN201420647149.4U patent/CN204312071U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626079A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Underground excavation machine hydraulic control system and flow distribution system |
| CN105626079B (en) * | 2014-10-31 | 2019-02-01 | 徐州徐工铁路装备有限公司 | Tunneling machine hydraulic control system and flow distributing system |
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Granted publication date: 20150506 Effective date of abandoning: 20190201 |