CN105257617B - Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck - Google Patents
Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck Download PDFInfo
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- CN105257617B CN105257617B CN201510826598.4A CN201510826598A CN105257617B CN 105257617 B CN105257617 B CN 105257617B CN 201510826598 A CN201510826598 A CN 201510826598A CN 105257617 B CN105257617 B CN 105257617B
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Abstract
The invention discloses a pressure-filling and unloading-controlling integrated system of a large electric wheel dump truck. The system comprises a pressure oil source and an oil tank and further comprises a pressure-filling and unloading-controlling integrated valve bank, wherein the pressure oil source is connected with the unloading-controlling integrated valve bank; the pressure oil is used as a control power source of the pressure-filling and unloading-controlling integrated system of the whole electric wheel dump truck. The pressure-filling and unloading-controlling integrated system of the large electric wheel dump truck adopts a standard and universal special hydraulic control integrated system integrated by hydraulic components; the components are intensively arranged; the system is high in integration degree, simple and practical in structure, high operation reliability and safety, simple to manufacture, low in cost and convenient to maintain; the control system is simple to operate, complete in functions, high in automatic control degree and complete in action interlocking relation, is applied to a normal-pressure steering control loop of a large mine dump truck device and can also be used as a pressure-building and unloading-controlling system of normal-pressure loops of other devices.
Description
Technical field
The present invention relates to a kind of pressurising and unloading control integrated system, fill more particularly, to a kind of Large Electric wheel self-discharging vehicle
Pressure and unloading control integrated system.
Background technology
At present in the world only the state such as the U.S., Russia, China, Germany, Japan can produce large-tonnage Electric Motor Wheel mine
Transport vehicle.Electric Motor Wheel Mine haul car fluid-link steering control system is one of Electric Motor Wheel transport vehicle core technology.Existing similar product
The fluid-link steering control system of product continues to use traditional permanent current formula control mode mostly, that is, manipulate change of the switching valve by flow
Pressure is built to course changing control loop, so as to produce steering power, this mode has turning velocity slowly, and sensitivity is low, reliable operation
Property difference shortcoming.
The content of the invention
The technical problem to be solved in the present invention is the disadvantages mentioned above for overcoming prior art to exist, there is provided a kind of reliable operation
Property it is high, reflect sensitive, simple and practical Large Electric wheel self-discharging vehicle pressurising and unloading control integrated system.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of pressurising of Large Electric wheel self-discharging vehicle and unloading control integrated system, including pressure oil-source and fuel tank, also include
Pressurising and the integrated valve group of unloading control, pressure oil-source controls integrated valve group and is connected with unloading control, and pressure oil-source is used as whole electricity
The pressurising of driving wheel dumper and the control power source of unloading control integrated system.
Further, the pressurising and the integrated valve group of unloading control include unloader, two-way logic inserted valve, check valve, the
One choke valve and second throttle；Unloader, two-way logic inserted valve, check valve, first throttle valve, second throttle are inserted
On oil path block.
Further, oil path block is provided with oil-in, oil return opening, drain tap and the first actuator port；The pressure oil-source connects
Connect the oil-in of oil path block, the oil return opening connection fuel tank of oil path block, the drain tap of oil path block also connects fuel tank, the first of oil path block
The steering control valve and accumulator in the course changing control loop of actuator port connection Large Electric wheel self-discharging vehicle.
Further, be provided with the oil path block the first main working oil path, the second main working oil path, the first oil circuit control,
Two oil circuit controls and guide's oil circuit.The main working oil paths of oil-in Jing second of the oil path block, the main valve of two-way logic inserted valve
The oil return opening of core and oil path block is connected to fuel tank；The main working oil paths of oil-in Jing second of oil path block, the second oil circuit control, two-way
The drain tap of the control port of logic inserted valve, the first oil circuit control, the main valve plug of unloader and oil path block is connected to fuel tank；Oil
The main working oil paths of oil-in Jing first of road block, the first actuator port of oil path block are connected to the steering of Large Electric wheel self-discharging vehicle
The steering control valve and accumulator of control loop；The main working oil paths of oil-in Jing first of oil path block, guide's oil circuit are connected to and unload
The control port of lotus valve.
Further, the first throttle valve is on the first oil circuit control.Second throttle is in guide's oil circuit.
Further, the first pressure tap, standby pressure tap and standby actuator port are additionally provided with the oil path block, wherein, the
One pressure tap, the first actuator port are located between check valve and steering control valve；Standby pressure tap, the first pressure tap are opened in
On same oil circuit, standby actuator port, the first actuator port are opened on same oil circuit.
Functional reliability of the present invention is high, is simple to manufacture, and use cost is low.The present invention is the general Hydraulic Elements of selection standard
Integrated dedicated hydraulic control integrated system, element centralized arrangement, degree of integration is high, takes up room little, and pipeline is few, is easy to dimension
Repair；Simple to operate, powerful, automatic controlling level is high, and action interlock connection is perfect, and security performance is high, it is adaptable to large-scale
Building for the normal pressure type course changing control loop of mine self-unloading vehicle device is pressed and off-load, also can be used as the gerotor type loop of miscellaneous equipment
Build pressure and unloading control system is used.
Description of the drawings
Fig. 1 is the hydraulic schematic diagram of the pressurising of the present invention and the integrated valve group of unloading control；
Fig. 2 is the schematic diagram of Large Electric wheel self-discharging vehicle of the present invention pressurising and unloading control integrated system；
Fig. 3（a）It is the front view of pressurising and the integrated valve group of unloading control；
Fig. 3（b）It is the upward view of pressurising and the integrated valve group of unloading control；
Fig. 3（c）It is the right view of pressurising and the integrated valve group of unloading control.
In figure：1st, unloader；2nd, two-way logic inserted valve；3. check valve；4.1st, first throttle valve；4.2 second throttlings
Valve；5th, oil path block；6th, fuel tank；7th, steering control valve；8th, accumulator；P：Pressure oil-source；P1：The oil-in of oil path block；T：Oil circuit
The oil return opening of block；L：The oil return opening of oil path block；A1：First actuator port of oil path block；A2：The standby actuator port of oil path block；
M1：First pressure tap of oil path block；M2：The standby pressure tap of oil path block； GL1：First main working oil path；GL2：Second main work
Make oil circuit；KL1：First oil circuit control；KL2：Second oil circuit control；DL：Guide's oil circuit.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Reference Fig. 1, Fig. 2, a kind of pressurising of Large Electric wheel self-discharging vehicle and unloading control integrated system, including pressure oil-source P
With fuel tank 6, also including pressurising and the integrated valve group of unloading control, pressure oil-source P controls integrated valve group and is connected with unloading control, pressure
Oil sources P is used as whole electric power wheel self-discharging vehicle pressurising and the control power source of unloading control integrated system.
The pressure oil-source P is oil pump.
With reference to Fig. 3（a）, Fig. 3（b）, Fig. 3（c）, the pressurising and the integrated valve group of unloading control are patrolled including unloader 1, two-way
Collect inserted valve 2, check valve 3, first throttle valve 4.1 and second throttle 4.2；It is unloader 1, two-way logic inserted valve 2, unidirectional
Valve 3, first throttle valve 4.1, second throttle 4.2 are plugged on oil path block 5.
Oil path block 5 is provided with oil inlet P 1, oil return inlet T, drain tap L and the first actuator port A1.The pressure oil-source P connects
The oil inlet P 1 of oil path block 5, the oil return inlet T connected tank 6 of oil path block 5, the drain tap L of oil path block 5 also connected tank 6, oil path block 5
First actuator port A1 connects the steering control valve 7 and accumulator 8 in the course changing control loop of Large Electric wheel self-discharging vehicle.
Be provided with the oil path block 5 first main working oil path GL1, the second main working oil path GL2, the first oil circuit control KL1,
Second oil circuit control KL2 and guide's oil circuit DL.Second main working oil paths GL2 of Jing of oil inlet P 1 of oil path block 5, the inserting of two-way logic
The main valve plug and oil return inlet T of valve 2 is connected to fuel tank 6.Second main working oil paths GL2 of Jing of oil inlet P 1 of oil path block 5, the second control oil
Road KL2, the control port of two-way logic inserted valve 2, the first oil circuit control KL1, the main valve plug of unloader 1 and oil path block 5 are let out
Hydraulic fluid port L is connected to fuel tank 6.First main working oil paths GL1 of Jing of oil inlet P 1 of oil path block 5, the first actuator port A1 of oil path block connect
To the steering control valve 7 and accumulator 8 in the course changing control loop of Large Electric wheel self-discharging vehicle.The Jing of oil inlet P 1 of oil path block 5
First main working oil path GL1, guide's oil circuit DL are connected to the control port of unloader 1.
First throttle valve 4.1 is on the first oil circuit control KL1.Second throttle 4.2 is in guide's oil circuit DL.
The first pressure tap M1, standby pressure tap M2 and standby actuator port A2 are additionally provided with oil path block 5, wherein, first surveys
Pressure mouth M1, the first actuator port A1 are located between check valve 3 and steering control valve 7；Standby pressure tap M2 is located at and opens up first
On the oil circuit of pressure tap M1, standby actuator port A2 is located at and opens up on an oil circuit of the first actuator port A1.
Operation principle：The pressurising of Large Electric wheel self-discharging vehicle and unloading control integrated system, its pressurising and unloading control it is integrated
Systemic-function includes forming a normal pressure loop to the course changing control loop pressurising of Large Electric wheel self-discharging vehicle；When course changing control is returned
The pressure on road is reached pressure oil-source P off-loads after the value of setting so as to avoid the long-term high-pressure works of pressure oil-source P, and then extends oil
The service life of pump；Or the oil sources is defeated by other operating mechanisms as power source to improve the service efficiency of oil pump.
To the pressurising of course changing control loop：The oil inlet P 1 of pressure oil-source P Jing oil path blocks 5, on the main performance loops of Jing first
Check valve 3, the first actuator port A1 of oil path block 5 are to the pressurising of accumulator 8 in course changing control loop, until pressure is charged to unloading
The pressure that lotus valve 1 is set up.
Unloading control：Pressure oil-source P Jing oil path blocks 5 oil inlet P 1, check valve 3 to the accumulation of energy in course changing control loop
In the Plenum Process of device 8, when pressure is charged to the pressure of the setting of unloader 1, pressure oil Jing second throttle 4.2 reaches unloader 1
Control port, the main valve heart of unloader 1 is opened, the first oil circuit control Jing unloaders 1, drain tap L connect fuel tank 6；This
When, in the presence of the control port of two-way logic inserted valve 2, also Jing unloaders 1, drain tap L are connected the second oil circuit control
Fuel tank 6, so that the main valve plug of two-way logic inserted valve 2 is opened, pressure oil is led from the Jing of oil inlet P 1 second of oil path block 5
Performance loop, two-way logic inserted valve 2 reach the oil return inlet T of oil path block 5 and enter fuel tank 6, so as to realize unloading for pressure oil-source P
Lotus.
Circulation pressurising：When causing the pressure drop in course changing control loop due to the loaded work piece in course changing control loop, from
When below the pressure that the first main working oil path Jing second throttle 4.2 sets to the pressure drop of guide's oil circuit to unloader 1,
The main valve plug of unloader 1 is closed, the pathway closure of the first oil circuit control to drain tap L, meanwhile, in two-way logic inserted valve 2
In the presence of control port, the second oil circuit control is to the pathway closure between drain tap L so that the master of two-way logic inserted valve 2
Valve element is closed, and the oil inlet P 1 of pressure oil-source P Jing oil path blocks 5, the oil return inlet T of two-way logic inserted valve 2, oil path block 5 are to oil
The pathway closure of case 6, off-load work stops, and the oil inlet P 1 of pressure oil-source P Jing oil path blocks 5, check valve 3 start to repeat to steering
The pressurising of accumulator 8 in control loop.
As described above constantly repeatedly punching press and off-load circulation make the course changing control loop of Large Electric wheel self-discharging vehicle protect all the time
Hold an atmospheric pressure state.
Claims (3)
1. a kind of pressurising of Large Electric wheel self-discharging vehicle and unloading control integrated system, it is characterised in that including pressure oil-source and oil
Case, also including pressurising and the integrated valve group of unloading control, pressure oil-source is connected with the integrated valve group of unloading control, and pressure oil-source is used as whole
Individual electric power wheel self-discharging vehicle pressurising and the control power source of unloading control integrated system；
The pressurising and the integrated valve group of unloading control include unloader, two-way logic inserted valve, check valve, first throttle valve and the
Two choke valves；Unloader, two-way logic inserted valve, check valve, first throttle valve, second throttle are plugged on oil path block；
Oil path block is provided with oil-in, oil return opening, drain tap and the first actuator port；The pressure oil-source connects entering for oil path block
Hydraulic fluid port, the oil return opening connection fuel tank of oil path block, the drain tap of oil path block also connects fuel tank, the first actuator port connection of oil path block
Steering control valve and accumulator；
Be provided with the oil path block the first main working oil path, the second main working oil path, the first oil circuit control, the second oil circuit control and
Guide's oil circuit；The main working oil paths of oil-in Jing second of the oil path block, the main valve plug of two-way logic inserted valve and oil path block
Oil return opening is connected to fuel tank；The main working oil paths of oil-in Jing second of oil path block, the second oil circuit control, two-way logic inserted valve
The drain tap of control port, the first oil circuit control, the main valve plug of unloader and oil path block is connected to fuel tank；The oil-in of oil path block
The main working oil paths of Jing first, the first actuator port of oil path block are connected to steering control valve and accumulator；The oil-in of oil path block
The main working oil paths of Jing first, guide's oil circuit are connected to the control port of unloader.
2. Large Electric wheel self-discharging vehicle according to claim 1 pressurising and unloading control integrated system, it is characterised in that institute
State first throttle valve to be located on the first oil circuit control；Second throttle is in guide's oil circuit.
3. Large Electric wheel self-discharging vehicle according to claim 1 pressurising and unloading control integrated system, it is characterised in that institute
State and be additionally provided with oil path block the first pressure tap, standby pressure tap and standby actuator port, wherein, the first pressure tap, the first work
Hydraulic fluid port is located between check valve and steering control valve；Standby pressure tap, the first pressure tap are opened on same oil circuit, standby work
Make hydraulic fluid port, the first actuator port to be opened on same oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826598.4A CN105257617B (en) | 2015-11-25 | 2015-11-25 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826598.4A CN105257617B (en) | 2015-11-25 | 2015-11-25 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257617A CN105257617A (en) | 2016-01-20 |
| CN105257617B true CN105257617B (en) | 2017-05-17 |
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| CN201510826598.4A Active CN105257617B (en) | 2015-11-25 | 2015-11-25 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015123B (en) * | 2016-06-27 | 2018-06-26 | 广西柳工机械股份有限公司 | Quarry tipper accumulator pressure release control method |
| CN110513344A (en) * | 2019-08-27 | 2019-11-29 | 北京华海基业机械设备有限公司 | Big flow inflatable overflow valve suitable for emulsion power pack system |
| CN110843904A (en) * | 2019-11-14 | 2020-02-28 | 湘电重型装备有限公司 | Integrated steering and braking control system of large electric wheel dumper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043419A (en) * | 1976-06-04 | 1977-08-23 | Eaton Corporation | Load sensing power steering system |
| CN2633703Y (en) * | 2003-07-01 | 2004-08-18 | 浙江杭叉工程机械股份有限公司 | Forklift hydraulic device for lifting and turning with one motor |
| CN101367347B (en) * | 2008-10-03 | 2011-07-20 | 内蒙古北方重型汽车股份有限公司 | Lifting and steering control method and system of self-discharging vehicle for rigid mining |
| CN202480940U (en) * | 2011-12-24 | 2012-10-10 | 广西玉柴重工有限公司 | Lifting and steering valve group of rigid self-dumping truck |
| CN103144566B (en) * | 2013-03-27 | 2015-12-23 | 长治清华机械厂 | A kind of large-tonnage highway quarry tipper lifting hydraulic system |
| CN205225915U (en) * | 2015-11-25 | 2016-05-11 | 湘电重型装备有限公司 | Electronic round large -scale tipper pressurizes and off -load control integration system |
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