CN201291792Y - Lift hydraulic integrated system of electric power wheel self-discharging vehicle - Google Patents
Lift hydraulic integrated system of electric power wheel self-discharging vehicle Download PDFInfo
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- CN201291792Y CN201291792Y CNU2008201587836U CN200820158783U CN201291792Y CN 201291792 Y CN201291792 Y CN 201291792Y CN U2008201587836 U CNU2008201587836 U CN U2008201587836U CN 200820158783 U CN200820158783 U CN 200820158783U CN 201291792 Y CN201291792 Y CN 201291792Y
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Abstract
The utility model relates to a lifting hydraulic integrated system of an electric wheel tipper, which comprises a vane pump, a load sensitive pump, an oil tank, a high-pressure oil filter, an oil-return oil filter, a lifting oil cylinder, an orifice plug and a pressure-measuring port. The lifting hydraulic integrated system is characterized in that: a valve set which is integrated by an oil passage block is further arranged, and a hydraulic oil flowing pipeline is arranged at the oil passage block; and the valve set comprises a first control cover plate, a second control cover plate, a first insertion piece, a second insertion piece, a first overflow valve, a second overflow valve, a third overflow valve, a three-position four-way electro-hydraulic change valve, a first plug-in shuttle valve type electromagnetic directional valve, a second plug-in shuttle valve type electromagnetic directional valve, a two-position four-way electromagnetic valve, a first one-way valve, a second one-way valve and a needle valve. The lifting hydraulic integrated system has the characteristics of simple structure, simple and convenient manufacturing technique, convenient spare parts supplying, easy fault detecting, quick maintenance, low utilizing cost and the like.
Description
Technical field
The utility model relates to a kind of hydraulic integrated system for lifting electric power wheel self-discharging vehicle, especially relates to a kind of electric drive wheel quarry tipper hydraulic integrated system for lifting.
Background technology
At present, both at home and abroad the electric power wheel self-discharging vehicle originating firm generally is that lifting electric power wheel self-discharging vehicle hydraulic efficiency pressure system height is integrated, comes most elements in the replacement system with a special service valve.For example, the hydraulic integrated system for lifting of Dierser dumping car is to use pilot-actuated valve and play two special service valves of lift valve to have constituted almost whole lifting hydraulic efficiency pressure system.
The following defective of this class lifting integrated hydraulic system's ubiquity: (1) integrated control principle complexity; (2) because system height is integrated, the special service valve complex structure often by quarry tipper developer customized design, is difficult to be designed voluntarily by quarry tipper manufacturing enterprise; (3) because the spool of these basic Hydraulic Elements of core parts change-over valve must be assembled to the inside of transition valve piece, manufacture process requirement such as this material to transition valve piece and change-over valve is selected for use, form and position tolerance, surface treatment and assembling are very high, quarry tipper manufacturing enterprise is difficult to make voluntarily, can only rely on the supply of the affiliated hydraulic part professional production factory of developer; (4) owing to complex structure, manufacture process requirement is high, causes trouble diagnosing and maintenance difficult; (5) because the formation Hydraulic Elements are non-universal component, can not purchase from the market supply channel, can only be to hydraulic part factory custom-made, parts supply is often untimely, and procurement price is also high; (6) because the spool of core parts change-over valve must be assembled to the inside of transition valve piece, in case break down in the special service valve part, as the wearing and tearing of spool, valve body, may cause the monoblock pile-up valve to be scrapped, may cause the main frame for a long time can't operation because of the minor issue of hydraulic efficiency pressure system.
The utility model content
The purpose of this utility model is to overcome the defective that existing hydraulic integrated system for lifting electric power wheel self-discharging vehicle exists, a kind of hydraulic integrated system for lifting electric power wheel self-discharging vehicle that is made of universal component is provided, this hydraulic integrated system for lifting manufactures and designs easily, the trouble diagnosing maintenance is convenient, and the element procurement price is cheap.
The technical solution of the utility model is: it comprises blade-type pump, load sensitive pump, fuel tank, high-pressure filter, the oil return oil filter, elevating ram, orifice plug, the pressure measurement interface also is provided with by first control cover plate, second control cover plate, first insert, second insert, first by pass valve, second by pass valve, the 3rd by pass valve, the 3-position 4-way electro-hydraulic reversing valve, the first plug-in shuttle valve type solenoid directional control valve, the second plug-in shuttle valve type solenoid directional control valve, two-position four-way solenoid valve, first check valve, second check valve, needle-valve is by being provided with the integrated valve group of oil path block of the mobile pipeline of hydraulic oil; The blade-type pump oil outlet directly connects oil path block blade-type pump oil inlet port, the load sensitive pump oil outlet divides two-way, one the tunnel directly connects oil path block load sensitive pump oil inlet port, and the restriction of leading up to divides two-way afterwards again, respectively to control port of load sensitive pump own and braking in a turn system; The return opening of oil path block takes back oily oil filter and passes to fuel tank, the direct connected tank of drain tap; The oil outlet of oil path block comprises two-way, and one the tunnel connects the big chamber of elevating ram, and one the tunnel connects balance cock; The oil inlet of blade-type pump joins by first by pass valve and 3-position 4-way electro-hydraulic reversing valve, by fuel feeding lifting, forced landing or the directly off-load of 3-position 4-way electro-hydraulic reversing valve control blade-type pump; First check valve is arranged in the lifting oil circuit; The oil-feed of load sensitive pump inserts second insert by second by pass valve, and by the keying of the common control of two-position four-way solenoid valve and second control cover plate second insert, whether fuel feeding is the lifting fuel feeding with the blade-type pump interflow to the decision load sensitive pump; First insert connects the big chamber of fuel tank and elevating ram, controls the oil return of decision systems jointly by the first plug-in shuttle valve type solenoid directional control valve, the second plug-in shuttle valve type solenoid directional control valve, first control cover plate and orifice plug; Needle-valve is in parallel with first insert; The 3rd by pass valve is connected balance cock interface and fuel tank with second check valve, is respectively applied for pressure limiting and repairing in the forced landing process; Be respectively arranged with the pressure measurement interface of corresponding oil circuit at in-line and oil return line.
Valve member should adopt thread cartridge formula valve or plate valve.
The preferred three grades of telescopic oil cylinders of described elevating ram.
In the utility model, the oil-feed of blade-type pump is controlled fuel feeding lifting, forced landing or the directly off-load of blade-type pump by first by pass valve by the 3-position 4-way electro-hydraulic reversing valve; First check valve that is provided with in the lifting oil circuit is used for preventing that the oil of three grades of telescopic oil cylinders from refluxing in the lifting process; The oil-feed of load sensitive pump inserts second insert by second by pass valve, and by the keying of the common control of two-position four-way solenoid valve and second control cover plate second insert, whether fuel feeding is the lifting fuel feeding with the blade-type pump interflow to the decision load sensitive pump; First insert connects the big chamber of fuel tank and elevating ram, controls the oil return of decision systems jointly by first, second plug-in shuttle valve type solenoid directional control valve, first control cover plate and orifice plug.The needle-valve in parallel with first insert is used in the system maintenance oil extraction; The 3rd by pass valve is connected balance cock interface and fuel tank with second check valve, is respectively applied for pressure limiting and repairing in the forced landing process.
Oil path block of the utility model is installed each valve concentratedly composition valve group and substitute the integrated special service valve of height that generally uses at present in the lifting hydraulic efficiency pressure system, only be in oil path block indoor design duct, the hydraulic fluid port of various general Hydraulic Elements is coupled together, simple in structure; Main manufacturing work be on oil path block drilling and tapping, then the various general Hydraulic Elements in the integrated controlling schemes are installed on the oil path block, manufacturing process is simple; The element of selecting for use all is the standard Hydraulic Elements that compare main flow in the market, is convenient to the buying stock; Compared to pipeline system, loss of pressure is less, and is difficult for leaking; Because oil path block only is a mounting blocks that comprises asphalt channel, fault will mainly go out in various general-duty standard Hydraulic Elements, and very ripe to the fault diagnosis technology of standard Hydraulic Elements, thereby trouble diagnosing is easy; In case partial failure occurs, only need maintenance or change certain general Hydraulic Elements, needn't integral body scrap, thereby maintenance is quick, use cost is also low.
Description of drawings
Fig. 1 is a hydraulic schematic diagram of the present utility model;
Fig. 2 is the utility model one Application Example lifting electric power wheel self-discharging vehicle hydraulic system principle figure;
Fig. 3 (a) (b) (c) is respectively front view, right elevation, the left view of lifting electric power wheel self-discharging vehicle hydraulic efficiency pressure system valve group shown in Figure 2.
Among the figure: 1. blade-type pump; 2. load sensitive pump; 3. high-pressure filter; 4.1. the first oil return oil filter; 4.2. the second oil return oil filter; 5. first control cover plate; 6. first insert; 7.1. first by pass valve; 7.2. second by pass valve; 8. 3-position 4-way electro-hydraulic reversing valve; 9.1. the first plug-in shuttle valve type solenoid directional control valve; 9.2. the second plug-in shuttle valve type solenoid directional control valve; 10. three grades of telescopic oil cylinders; 11. unidirectional balance cock; 12. the 3rd by pass valve; 13.2. the 3rd check valve; 15. oil path block; 16.1. the first oil suction oil filter; 16.2. the second oil suction oil filter; 22. flow regulating valve; 23. orifice plug; 25.1. the 4th check valve; 26. second insert; 27. second control cover plate; 28. two-position four-way solenoid valve; 29. second check valve; 30. first check valve; 31. needle-valve; 35. pressure measuring tie-in; 36. fuel tank; A represents to the braking in a turn system; P1 is an oil path block blade-type pump interface; P2 is an oil path block load-sensitive pump interface; T1 is an oil path block oil return interface; T2 is an oil path block draining interface; XT oil path block draining drive test crimping mouth; XP1 is an oil path block blade-type pump in-line pressure measurement interface; XP2 is an oil path block load sensitive pump in-line pressure measurement interface; A1/A2 is an oil path block lifting hydraulic fluid port; B is an oil path block decline hydraulic fluid port; XA1 is an oil path block lifting oil circuit pressure measurement interface.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1,2,3, present embodiment comprises blade-type pump 1, load sensitive pump 2, first control cover plate 5, second control cover plate 27, first insert 6, second insert 26, first by pass valve 7.1, second by pass valve 7.2, the 3rd by pass valve 12,3-position 4-way electro-hydraulic reversing valve 8, the first plug-in shuttle valve type solenoid directional control valve 9.1, the second plug-in shuttle valve type solenoid directional control valve 9.2, orifice plug 23, two-position four-way solenoid valve 28, first check valve 30, second check valve 29, needle-valve 31, valve member adopts thread cartridge formula valve or plate valve, each valve member is installed on the oil path block 15 that is provided with the mobile pipeline of hydraulic oil, an integrated valve group;
Blade-type pump 1 oil suction is communicated with the second oil suction oil filter 16.2, and its oil outlet directly meets the blade-type pump interface P1 of oil path block 15; Load sensitive pump 2 oil suctions are communicated with the first oil suction oil filter 16.1, its oil outlet divides two-way, one passes by the load-sensitive pump interface P2 that the 3rd check valve 13.2 connects oil path block 15, the flow regulating valve 22 of leading up to divides two-way afterwards again, connect load sensitive pump 2 control ports own and high-pressure filter 3 respectively, switch through to brake system A by high-pressure filter 3, the 4th check valve 25.1; The oil return interface T1 of oil path block 15 connects the first oil return oil filter 4.1 and the second oil return oil filter 4.2, the direct connected tank 36 of draining interface T1; Lifting hydraulic fluid port A1, the A2 of oil path block 15 connects three grades of telescopic oil cylinders, 10 big chambeies, and decline hydraulic fluid port B order is to balance cock 11; Draining drive test crimping mouth XT, blade-type pump in-line pressure measurement interface XP1, lifting oil circuit pressure measurement interface XA1 are respectively the pressure measurement interface of oil path block 15 corresponding oil circuits, on the described pressure measurement interface pressure measuring tie-in 35 are installed;
The oil-feed of blade-type pump 1 is controlled fuel feeding lifting, forced landing or the directly off-load of blade-type pump 1 by first by pass valve 7.1 by 3-position 4-way electro-hydraulic reversing valve 8; First check valve 30 that is provided with in the lifting oil circuit is used for preventing that the oil of three grades of telescopic oil cylinders 10 from refluxing in the lifting process; The oil-feed of load sensitive pump 2 inserts second insert 26 by second by pass valve 7.2, by the keyings of two-position four-way solenoid valve 28 and the common control of second control cover plate 27 second inserts 26, whether fuel feeding is the lifting fuel feeding with blade-type pump 1 interflow to decision load sensitive pump 2; First insert 6 connects the big chamber of fuel tank 36 and three grades of telescopic oil cylinders 10, controls the oil return of decision systems jointly by the first plug-in shuttle valve type solenoid directional control valve 9.1, the second plug-in shuttle valve type solenoid directional control valve 9.2, first control cover plate 5 and orifice plug 23.The needle-valve 31 in parallel with first insert 3 is used in the system maintenance oil extraction; The 3rd by pass valve 12 is connected unidirectional balance cock 11 interfaces and fuel tank 36 with second check valve 29, be respectively applied for pressure limiting and repairing in the forced landing process.
For improving installation effectiveness, in the selection of valve member, used board-like as best one can or plug-in (second control cover plate 27, first by pass valve 7.1, second by pass valve 7.2,3-position 4-way electro-hydraulic reversing valve 8, two-position four-way solenoid valve 28, first check valve 30 are board-like installation, and first insert 6, second insert 26, the first plug-in shuttle valve type solenoid directional control valve 9.1, the second plug-in shuttle valve type solenoid directional control valve 9.2, the 3rd by pass valve 12 orifice plugs 23, second check valve 29, needle-valve 31 are thread cartridge); As shown in Figure 4, each universal component all centralized arrangement on five faces of an oil path block 15, oil circuit trend according to hoisting system in the middle of the oil path block 15 links up each universal component, make the major part of whole hoisting system be integrated on the valve group, on function, intactly replaced special service valve.
Present embodiment only is 40 oil through roads of oil path block 15 indoor designs and 82 screw mounting holes at pile-up valve shown in Figure 4, by general Hydraulic Elements first control cover plate 5 of 82 screws with integrated controlling schemes shown in Figure 2, first insert 6, first by pass valve 7.1, second by pass valve 7.2,3-position 4-way electro-hydraulic reversing valve 8, the first plug-in shuttle valve type solenoid directional control valve 9.1, the second plug-in shuttle valve type solenoid directional control valve 9.2, the 3rd by pass valve 12, orifice plug 23, second insert 26, second control cover plate 27, two-position four-way solenoid valve 28, second check valve 29, first check valve 30, needle-valve 31 is installed on the oil path block 15, and 40 oil through roads on the oil path block 15 couple together each general Hydraulic Elements hydraulic fluid port.
Main manufacturing work is boring, tapping on the oil path block 15 of pile-up valve Fig. 4, then the various general Hydraulic Elements among integrated controlling schemes Fig. 2 is installed on the oil path block 15; Selected element all is the general Hydraulic Elements that compare main flow in the market; Because the oil path block 15 of pile-up valve shown in Figure 4 only is an asphalt channel, fault will mainly go out the various general Hydraulic Elements in Fig. 2, and it has been very ripe to the fault diagnosis technology of universal component, in case partial failure occurs, only need maintenance or change certain general Hydraulic Elements, and needn't integral body scrap.
The integrated controlling schemes controllable function of the utility model is implemented as follows:
The lifting hydraulic efficiency pressure system adopts blade-type pump 1 and load sensitive pump 2 double pumps to collaborate to reach the big flow of needs when lifting; Load sensitive pump 2 is responsible for the braking in a turn fuel feeding when non-lifting state, and keeps the high pressure in braking in a turn loop, and the pressure shut-off valve that is carried by load sensitive pump 2 has also guaranteed the constant voltage control of steering swivel system.The flow direction of 3-position 4-way electro-hydraulic reversing valve 8 control blade-type pumps 1; In whole lifting process, comprised 4 fundamental operation functions, 7 safety protection functions:
1, lift location: when the energising of two-position four-way solenoid valve 28 electromagnet, second insert 26 is opened, the energising of the first plug-in shuttle valve type solenoid directional control valve, 9.1 electromagnet, first insert 6 is closed, load sensitive pump 2 is given the big chamber fuel feeding of three grades of telescopic oil cylinders 10,3-position 4-way electro-hydraulic reversing valve 8 left electromagnet energisings simultaneously, and blade-type pump 1 is given the big chamber fuel feeding of three grades of telescopic oil cylinders 10, the loculus of three grades of telescopic oil cylinders 10 is connected fuel tank, realizes lifting fast the compartment;
2, holding position: when the energising of the first plug-in shuttle valve type solenoid directional control valve, 9.1 electromagnet, first insert 26 and second insert 6 are closed under the effect of pressure oil, the oil circuit in three grades of telescopic oil cylinder 10 big chambeies is disconnected, the compartment stop motion, unidirectional balance cock 11 can also stop the compartment to continue to lift simultaneously;
3, floating position: all electromagnet are not charged, and second insert 26 is closed, and first insert 6 is opened under the effect of spill pressure, and the compartment falls under the effect of deadweight;
4, forced landing position: second insert 26 is closed, first insert 6 is opened under the effect of spill pressure, fuel tank is connected in the big chamber of three grades of telescopic oil cylinders 10,3-position 4-way electro-hydraulic reversing valve 8 right electromagnet get simultaneously, blade-type pump 1 is given the loculus fuel feeding of three grades of telescopic oil cylinders 10, pressure oil forces three grades of telescopic oil cylinders, 10 retractions, and the compartment descends fast;
5, the adjusting of compartment deadweight descending speed: regulate first insert 6 that has Stroke Control and regulate descending speed, and the speed of lifting is not subjected to the influence of first insert 6, therefore, has realized the function of one-way throttle valve;
6, turn to the pressure of brake system and set: the top pressure of steering swivel system is set by the pressure shut-off valve of load sensitive pump 2 self, be the protection hydraulic variable displacement pump, other establishes second by pass valve 7.2, when load sensitive pump 2 faults itselfs can't reduce discharge capacity, and protection load sensitive pump 2;
7, the adjusting of lift-off pressures: the pressure of hoisting system is set by first by pass valve 7.1, protects blade-type pump 2;
8, the protection of three grades of telescopic oil cylinder 10 piston rods: in the process of compartment pressure forced landing, when avoiding the load of whereabouts, compartment very big (for example bottom, compartment heap has a large amount of ores), force forced landing, may damage oil cylinder, therefore setting up the 3rd by pass valve 12 limits forced landing pressure;
9, prevent to pull out cylinder: along with lifting gradually of compartment, the center of gravity of ore may arrive after the hinged center of gravity line of compartment and vehicle frame, the load of hoisting system is become surmount load, makes the compartment accelerated movement, may damage three grades of telescopic oil cylinders 10 of lifting, unidirectional balance cock 11 is used for avoiding pulling out cylinder;
10, reduce reversing impact: on the spring cavity oil circuit of inserted valve, set up fixed throttle port, increase the time of commutation,, then set up lower guide's control presssure by reducing valve for 3-position 4-way electro-hydraulic reversing valve 8, the speed that slows down and commutate prevents hydraulic efficiency impact;
11, during the Hydraulic Pump fault, prevent that the compartment from plunking down: in the process of lifting, if the Hydraulic Pump et out of order, no flow output is fallen suddenly for preventing the compartment, and the lifting loop is provided with first check valve 30 and the 3rd check valve 13.2.
Claims (3)
1. hydraulic integrated system for lifting electric power wheel self-discharging vehicle, comprise blade-type pump, load sensitive pump, fuel tank, high-pressure filter, the oil return oil filter, elevating ram, orifice plug, the pressure measurement interface, it is characterized in that, also be provided with by first control cover plate, second control cover plate, first insert, second insert, first by pass valve, second by pass valve, the 3rd by pass valve, the 3-position 4-way electro-hydraulic reversing valve, the first plug-in shuttle valve type solenoid directional control valve, the second plug-in shuttle valve type solenoid directional control valve, two-position four-way solenoid valve, first check valve, second check valve, needle-valve is by being provided with the integrated valve group of oil path block of the mobile pipeline of hydraulic oil, the blade-type pump oil outlet directly connects oil path block blade-type pump oil inlet port, the load sensitive pump oil outlet divides two-way, one the tunnel directly connects oil path block load sensitive pump oil inlet port, the restriction of leading up to divides two-way afterwards again, respectively to control port of load sensitive pump own and braking in a turn system; The return opening of oil path block takes back oily oil filter and passes to fuel tank, the direct connected tank of drain tap; The oil outlet of oil path block comprises two-way, and one the tunnel connects the big chamber of elevating ram, and one the tunnel connects balance cock; The oil inlet of blade-type pump joins by first by pass valve and 3-position 4-way electro-hydraulic reversing valve; First check valve is arranged in the lifting oil circuit; The oil inlet of load sensitive pump inserts second insert by second by pass valve, by the keying of two-position four-way solenoid valve and the common control of second control cover plate second insert; First insert connects the big chamber of fuel tank and elevating ram, controls the oil return of decision systems jointly by the first plug-in shuttle valve type solenoid directional control valve, the second plug-in shuttle valve type solenoid directional control valve, first control cover plate and orifice plug; Needle-valve is in parallel with first insert; The 3rd by pass valve is connected balance cock interface and fuel tank with second check valve; Be respectively arranged with the pressure measurement interface at in-line and oil return line.
2. hydraulic integrated system for lifting electric power wheel self-discharging vehicle according to claim 1 is characterized in that, each valve member is thread cartridge formula valve or plate valve.
3. hydraulic integrated system for lifting electric power wheel self-discharging vehicle according to claim 1 and 2 is characterized in that, described elevating ram is three grades of telescopic oil cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201587836U CN201291792Y (en) | 2008-10-16 | 2008-10-16 | Lift hydraulic integrated system of electric power wheel self-discharging vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201587836U CN201291792Y (en) | 2008-10-16 | 2008-10-16 | Lift hydraulic integrated system of electric power wheel self-discharging vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN201291792Y true CN201291792Y (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201587836U Expired - Fee Related CN201291792Y (en) | 2008-10-16 | 2008-10-16 | Lift hydraulic integrated system of electric power wheel self-discharging vehicle |
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| CN (1) | CN201291792Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380915B (en) * | 2008-10-16 | 2010-06-02 | 湘潭电机股份有限公司 | Hydraulic integrated system for lifting electric power wheel self-discharging vehicle |
| CN105984364A (en) * | 2015-01-30 | 2016-10-05 | 中国国际海运集装箱(集团)股份有限公司 | Redundancy-operated electrically controlled gas circuit hydraulic valve and system for dump trucks |
| CN112224110A (en) * | 2020-10-27 | 2021-01-15 | 航天重型工程装备有限公司 | Combined valve group for controlling lifting of cargo bucket and truck |
-
2008
- 2008-10-16 CN CNU2008201587836U patent/CN201291792Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380915B (en) * | 2008-10-16 | 2010-06-02 | 湘潭电机股份有限公司 | Hydraulic integrated system for lifting electric power wheel self-discharging vehicle |
| CN105984364A (en) * | 2015-01-30 | 2016-10-05 | 中国国际海运集装箱(集团)股份有限公司 | Redundancy-operated electrically controlled gas circuit hydraulic valve and system for dump trucks |
| CN112224110A (en) * | 2020-10-27 | 2021-01-15 | 航天重型工程装备有限公司 | Combined valve group for controlling lifting of cargo bucket and truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20101016 |