CN105257617A - 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
- Publication number
- CN105257617A CN105257617A CN201510826598.4A CN201510826598A CN105257617A CN 105257617 A CN105257617 A CN 105257617A CN 201510826598 A CN201510826598 A CN 201510826598A CN 105257617 A CN105257617 A CN 105257617A
- Authority
- CN
- China
- Prior art keywords
- valve
- unloading
- pressure
- manifold block
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Power Steering Mechanism (AREA)
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 system, wherein the pressure oil source is connected with an 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, especially relate to the pressurising of a kind of Large Electric wheel self-discharging vehicle and unloading control integrated system.
Background technique
The states such as current the Jin You U.S., Russia, China, Germany, Japan in the world can produce large-tonnage electric wheel Mine haul car.Electric wheel Mine haul car fluid-link steering control system is one of electric wheel transport vehicle core technology.The fluid-link steering control system of existing like product all continues to use traditional permanent current formula control mode mostly, namely handle switching valve, by the change of flow, pressure is built to course changing control loop, thus generation steering power, it is slow to there is turning velocity in this mode, the shortcoming that sensitivity is low, functional reliability is poor.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the above-mentioned shortcoming that prior art exists, provides a kind of functional reliability 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 Large Electric wheel self-discharging vehicle pressurising and unloading control integrated system, comprise pressure oil-source and fuel tank, also comprise pressurising and unloading control integrated valve group, pressure oil-source is connected with unloading control control integration valve group, and pressure oil-source is as the control power source of whole electric power wheel self-discharging vehicle pressurising and unloading control integrated system.
Further, described pressurising and unloading control integrated valve group comprise unloading valve, two-way logic cartridge valve, one-way valve, first throttle valve and second throttle; Unloading valve, two-way logic cartridge valve, one-way valve, first throttle valve, second throttle are all plugged on manifold block.
Further, manifold block is provided with filler opening, return opening, drain tap and the first actuator port; Described pressure oil-source connects the filler opening of manifold block, and the return opening of manifold block connects fuel tank, and the drain tap of manifold block also connects fuel tank, and the first actuator port of manifold block connects steering control valve and the accumulator in the course changing control loop of Large Electric wheel self-discharging vehicle.
Further, 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 is provided with in described manifold block.The filler opening of described manifold block is connected to fuel tank through the second main working oil path, the main valve plug of two-way logic cartridge valve and the return opening of manifold block; The filler opening of manifold block is connected to fuel tank through the control port of the second main working oil path, the second oil circuit control, two-way logic cartridge valve, the first oil circuit control, the main valve plug of unloading valve and the drain tap of manifold block; The filler opening of manifold block is connected to steering control valve and the accumulator in the course changing control loop of Large Electric wheel self-discharging vehicle through the first actuator port of the first main working oil path, manifold block; The filler opening of manifold block is connected to the control port of unloading valve through the first main working oil path, guide's oil circuit.
Further, described first throttle valve is located on the first oil circuit control.Second throttle is located on guide's oil circuit.
Further, described manifold block is also provided with the first pressure tap, pressure tap for subsequent use and actuator port for subsequent use, wherein, the first pressure tap, the first actuator port are all located between one-way valve and steering control valve; Pressure tap for subsequent use, the first pressure tap are opened on same oil circuit, and actuator port for subsequent use, the first actuator port are opened on same oil circuit.
Functional reliability of the present invention is high, and manufacture simple, user cost is low.The present invention is the integrated dedicated hydraulic control integration systems of the general hydraulic element of selection standard, element centralized arrangement, and degree of integration is high, and take up room little, pipeline is few, is convenient to maintenance; Simple to operate, powerful, automatic controlling level is high, action interlock connection is perfect, Safety performance is high, and what be applicable to the normal pressure type course changing control loop of large-scale mine dumping car equipment builds pressure and off-load, and what also can be used as the gerotor type loop of miscellaneous equipment builds pressure and unloading control system use.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of pressurising of the present invention and unloading control integrated valve group;
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) is the plan view of pressurising and unloading control integrated valve group;
Fig. 3 (b) is the worm's eye view of pressurising and unloading control integrated valve group;
Fig. 3 (c) is the right elevation of pressurising and unloading control integrated valve group.
In figure: 1, unloading valve; 2, two-way logic cartridge valve; 3. one-way valve; 4.1, first throttle valve; 4.2 second throttle; 5, manifold block; 6, fuel tank; 7, steering control valve; 8, accumulator; P: pressure oil-source; P1: the filler opening of manifold block; T: the return opening of manifold block; L: the return opening of manifold block; A1: the first actuator port of manifold block; A2: the actuator port for subsequent use of manifold block; M1: the first pressure tap of manifold block; M2: the pressure tap for subsequent use of manifold block; GL1: the first main working oil path; GL2: the second main working oil path; KL1: the first oil circuit control; KL2: the second oil circuit control; DL: guide's oil circuit.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to Fig. 1, Fig. 2, a kind of Large Electric wheel self-discharging vehicle pressurising and unloading control integrated system, comprise pressure oil-source P and fuel tank 6, also comprise pressurising and unloading control integrated valve group, pressure oil-source P is connected with unloading control control integration valve group, and pressure oil-source P is as the control power source of whole electric power wheel self-discharging vehicle pressurising and unloading control integrated system.
Described pressure oil-source P is oil pump.
With reference to Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), described pressurising and unloading control integrated valve group comprise unloading valve 1, two-way logic cartridge valve 2, one-way valve 3, first throttle valve 4.1 and second throttle 4.2; Unloading valve 1, two-way logic cartridge valve 2, one-way valve 3, first throttle valve 4.1, second throttle 4.2 are all plugged on manifold block 5.
Manifold block 5 is provided with oil inlet P 1, oil return inlet T, drain tap L and the first actuator port A1.Described pressure oil-source P connects the oil inlet P 1 of manifold block 5, the oil return inlet T connected tank 6 of manifold block 5, the drain tap L of manifold block 5 also connected tank 6, the first actuator port A1 of manifold block 5 connects steering control valve 7 and the accumulator 8 in the course changing control loop of Large Electric wheel self-discharging vehicle.
The first main working oil path GL1, the second main working oil path GL2, the first oil circuit control KL1, the second oil circuit control KL2 and guide's oil circuit DL is provided with in described manifold block 5.The oil inlet P 1 of manifold block 5 is connected to fuel tank 6 through the main valve plug of the second main working oil path GL2, two-way logic cartridge valve 2 and oil return inlet T.The oil inlet P 1 of manifold block 5 is connected to fuel tank 6 through the control port of the second main working oil path GL2, the second oil circuit control KL2, two-way logic cartridge valve 2, the first oil circuit control KL1, the main valve plug of unloading valve 1 and the drain tap L of manifold block 5.The oil inlet P 1 of manifold block 5 is connected to steering control valve 7 and the accumulator 8 in the course changing control loop of Large Electric wheel self-discharging vehicle through the first actuator port A1 of the first main working oil path GL1, manifold block.The oil inlet P 1 of manifold block 5 is connected to the control port of unloading valve 1 through the first main working oil path GL1, guide's oil circuit DL.
First throttle valve 4.1 is located on the first oil circuit control KL1.Second throttle 4.2 is located on guide's oil circuit DL.
Manifold block 5 is also provided with the first pressure tap M1, pressure tap M2 for subsequent use and actuator port A2 for subsequent use, wherein, the first pressure tap M1, the first actuator port A1 are all located between one-way valve 3 and steering control valve 7; Pressure tap M2 for subsequent use be located at offer the first pressure tap M1 oil circuit on, actuator port A2 for subsequent use be located at offer the first actuator port A1 an oil circuit on.
Working principle: the pressurising of Large Electric wheel self-discharging vehicle and unloading control integrated system, its pressurising and unloading control integrated system function comprise and form a normal pressure loop to the course changing control loop pressurising of Large Electric wheel self-discharging vehicle; After the pressure in course changing control loop reaches the value of setting, the long-term high-pressure work of pressure oil-source P is avoided in pressure oil-source P off-load, and then extend the working life of oil pump; Maybe this oil sources is defeated by other operation mechanism as power source to improve the utilization efficiency of oil pump.
To the pressurising of course changing control loop: pressure oil-source P is through the oil inlet P 1 of manifold block 5, first actuator port A1 of the one-way valve 3 on the first main performance loop, manifold block 5 to accumulator 8 pressurising in course changing control loop, until the pressure that pressure filling is set up to unloading valve 1.
Unloading control: at pressure oil-source P through the oil inlet P 1 of manifold block 5, one-way valve 3 in accumulator 8 Plenum Process in course changing control loop, when the pressure that pressure filling is set up to unloading valve 1, pressure oil arrives the control port of unloading valve 1 through second throttle 4.2, opened by the main valve heart of unloading valve 1, the first oil circuit control connects fuel tank 6 through unloading valve 1, drain tap L; Now, second oil circuit control is under the effect of the control port of two-way logic cartridge valve 2, also fuel tank 6 is connected through unloading valve 1, drain tap L, thus the main valve plug of two-way logic cartridge valve 2 is opened, the oil return inlet T that pressure oil arrives manifold block 5 from the oil inlet P 1 of manifold block 5 through the second main performance loop, two-way logic cartridge valve 2 enters fuel tank 6, thus realizes the off-load of pressure oil-source P.
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 the first main working oil path is below the pressure that second throttle 4.2 sets to the pressure drop of guide's oil circuit to unloading valve 1, the main valve plug of unloading valve 1 is closed, first oil circuit control is to the pathway closure of drain tap L, simultaneously, under the effect of the control port of two-way logic cartridge valve 2, pathway closure between second oil circuit control to drain tap L, the main valve plug of two-way logic cartridge valve 2 is closed, pressure oil-source P is through the oil inlet P 1 of manifold block 5, two-way logic cartridge valve 2, the oil return inlet T of manifold block 5 is to the pathway closure of fuel tank 6, off-load work stops, pressure oil-source P is through the oil inlet P 1 of manifold block 5, one-way valve 3 starts repetition to accumulator 8 pressurising in course changing control loop.
As above-mentioned constantly repeatedly punching press and off-load circulation make the course changing control loop of Large Electric wheel self-discharging vehicle remain an atmospheric pressure state.
Claims (6)
1. Large Electric wheel self-discharging vehicle pressurising and unloading control integrated system, it is characterized in that, comprise pressure oil-source and fuel tank, also comprise pressurising and unloading control integrated valve group, pressure oil-source is connected with unloading control integrated valve group, and pressure oil-source is as the control power source of whole electric power wheel self-discharging vehicle pressurising and unloading control integrated system.
2. Large Electric wheel self-discharging vehicle according to claim 1 pressurising and unloading control integrated system, is characterized in that, described pressurising and unloading control integrated valve group comprise unloading valve, two-way logic cartridge valve, one-way valve, first throttle valve and second throttle; Unloading valve, two-way logic cartridge valve, one-way valve, first throttle valve, second throttle are all plugged on manifold block.
3. Large Electric wheel self-discharging vehicle according to claim 2 pressurising and unloading control integrated system, is characterized in that, manifold block is provided with filler opening, return opening, drain tap and the first actuator port; Described pressure oil-source connects the filler opening of manifold block, and the return opening of manifold block connects fuel tank, and the drain tap of manifold block also connects fuel tank, and the first actuator port of manifold block connects steering control valve and accumulator.
4. Large Electric wheel self-discharging vehicle according to claim 3 pressurising and unloading control integrated system, is characterized in that, is provided with 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 in described manifold block; The filler opening of described manifold block is connected to fuel tank through the second main working oil path, the main valve plug of two-way logic cartridge valve and the return opening of manifold block; The filler opening of manifold block is connected to fuel tank through the control port of the second main working oil path, the second oil circuit control, two-way logic cartridge valve, the first oil circuit control, the main valve plug of unloading valve and the drain tap of manifold block; The filler opening of manifold block is connected to steering control valve and accumulator through the first actuator port of the first main working oil path, manifold block; The filler opening of manifold block is connected to the control port of unloading valve through the first main working oil path, guide's oil circuit.
5. Large Electric wheel self-discharging vehicle according to claim 4 pressurising and unloading control integrated system, is characterized in that, described first throttle valve is located on the first oil circuit control; Second throttle is located on guide's oil circuit.
6. Large Electric wheel self-discharging vehicle according to claim 4 pressurising and unloading control integrated system, it is characterized in that, described manifold block is also provided with the first pressure tap, pressure tap for subsequent use and actuator port for subsequent use, wherein, the first pressure tap, the first actuator port are all located between one-way valve and steering control valve; Pressure tap for subsequent use, the first pressure tap are opened on same oil circuit, and actuator port for subsequent use, the first actuator port are 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 true CN105257617A (en) | 2016-01-20 |
| CN105257617B CN105257617B (en) | 2017-05-17 |
Family
ID=55097483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826598.4A Active CN105257617B (en) | 2015-11-25 | 2015-11-25 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257617B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015123A (en) * | 2016-06-27 | 2016-10-12 | 广西柳工机械股份有限公司 | Pressure relief control method for energy accumulator of mining dump truck |
| 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 | A large-scale electric wheel dump truck integrated steering and braking control system |
Citations (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 |
| CN101367347A (en) * | 2008-10-03 | 2009-02-18 | 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 |
| CN103144566A (en) * | 2013-03-27 | 2013-06-12 | 长治清华机械厂 | Hoisting hydraulic system of large-tonnage non-highway mine dumper |
| 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 |
-
2015
- 2015-11-25 CN CN201510826598.4A patent/CN105257617B/en active Active
Patent Citations (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 |
| CN101367347A (en) * | 2008-10-03 | 2009-02-18 | 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 |
| CN103144566A (en) * | 2013-03-27 | 2013-06-12 | 长治清华机械厂 | Hoisting hydraulic system of large-tonnage non-highway mine dumper |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015123A (en) * | 2016-06-27 | 2016-10-12 | 广西柳工机械股份有限公司 | Pressure relief control method for energy accumulator of mining dump truck |
| 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 | A large-scale electric wheel dump truck integrated steering and braking control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105257617B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103174688B (en) | Hydraulic energy-saving system | |
| CN102673639B (en) | Hydraulic steering control system and crane with system | |
| CN204704167U (en) | Double loop energy storage type hydraulic control slow closing valve hydraulic station | |
| CN104061193B (en) | The drum brake hydraulic system of multi-axle heavy type engineering machinery | |
| CN110500343A (en) | Excavator dozer blade hydraulic system | |
| US20080112818A1 (en) | Auxiliary Energy-Accumulation And Flow-Enhancement Device For Hydraulic System Of Concrete Pump | |
| CN105257617A (en) | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck | |
| CN203582302U (en) | Control valve group, hydraulic control system and automobile crane | |
| CN205225915U (en) | Electronic round large -scale tipper pressurizes and off -load control integration system | |
| CN104401306A (en) | Mining dump truck hydraulic brake control integrated system with large electric wheel | |
| CN203717475U (en) | Double-pump confluence hydraulic system for mining dump truck | |
| CN103615480B (en) | Double-pump-driven hydraulic control system with safety brake function | |
| CN103573729A (en) | Mine hoist hydraulic station | |
| CN202574357U (en) | Hydraulic steering control system and cane provided with same | |
| CN103144566A (en) | Hoisting hydraulic system of large-tonnage non-highway mine dumper | |
| CN103498491A (en) | Bucket rod prior control loop of excavator and bucket rod control method | |
| CN201991861U (en) | Integrated valve block for heavy forklift hydraulic system | |
| CN104728203A (en) | Electro-hydraulic control reversing valve with internal pressure relief function | |
| CN104912136B (en) | A kind of excavator and its Hydraulic slewing system | |
| CN202923545U (en) | Loading and unloading switching device and load-sensitive hydraulic system | |
| CN107472358B (en) | Emergency steering hydraulic system of wheel loader | |
| CN202689076U (en) | Pilot oil source control valve bank of hydraulic excavator | |
| CN104019070A (en) | Pressure-maintaining hydraulic system with multistage braking function | |
| CN203594717U (en) | Double-pump driven safety brake hydraulic control system | |
| CN204851808U (en) | Two driving system of jet plane pump sending mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |