CN103161190A - Hybrid power full hydraulic loading machine hydraulic system based on pressure common rail system - Google Patents
Hybrid power full hydraulic loading machine hydraulic system based on pressure common rail system Download PDFInfo
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- CN103161190A CN103161190A CN2013100776037A CN201310077603A CN103161190A CN 103161190 A CN103161190 A CN 103161190A CN 2013100776037 A CN2013100776037 A CN 2013100776037A CN 201310077603 A CN201310077603 A CN 201310077603A CN 103161190 A CN103161190 A CN 103161190A
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Abstract
The invention provides a hybrid power full hydraulic loading machine hydraulic system based on a pressure common rail system. The system is used for solving the problems that an existing hybrid power system is low in transmission efficiency, low in energy recycling rate and low in reusing rate. In the process of braking, a walking hydraulic pump or a motor works in a pump operating condition, braking kinetic energy of a loading machine is recycled and stored in a high-pressure hydraulic accumulator. In a working condition of descending of a movable arm cylinder, the pressure is changed through a hydraulic transformer, and hydraulic energy is stored in the high-pressure hydraulic accumulator. In the process of starting of a vehicle and lifting of the movable arm cylinder, the recycled hydraulic energy can supply power for the vehicle. An active stamping function of the hydraulic pump plays the role of adjusting operating conditions of an engine so that the engine works in the optimum economic zone, and meanwhile the defect that the high-pressure hydraulic accumulator is small in energy density is recovered. The hybrid power full hydraulic loading machine hydraulic system has the advantages of being low in complexity, good in sealing performance, compact in structure, light, low in manufacturing cost and not prone to be polluted.
Description
Technical field
The present invention relates to a kind of loader dynamical system, especially relate to a kind of hybrid power full hydraulic loader hydraulic system based on the pressure common rail system.
Background technology
Loader should travel and carry out again loading operation, the power of its motor, and a part drives traveling mechanism by fluid torque-converter and gearbox, and another part is realized turning to and loading work by the hydraulic pump drive hydraulic jack.There are frequent start-stop and reciprocating motion in the loader operation process, because complete machine weight is large, so can discharge a large amount of energy during retarding braking, this part energy all consumes usually on the valve port of hydraulic valve, not only waste energy, also can cause the reduction of system's heating and component life.The transmission efficiency of hydraulic power is lower, and when especially running into heavy duty, the transmission efficiency of fluid torque-converter significantly descends on the contrary, and operating efficiency is reduced, and has caused the waste of the energy.
The pressure common rail system is that the hydraulic oil source in hydraulic system partly arranges a pressure duct, a low pressure line and an off-load pipeline, connect high-pressure hydraulic accumulator on pressure duct, and access hydraulic pump, in hydraulic pump adjusted setup pressure value, in system, each load is connected under the pressure of common rail, have identical pressure, mutual when working does not affect.Due to high-pressure hydraulic accumulator being arranged, there is no direct relation between the flow of hydraulic pump output and each load, and can weaken pressure peak, the energy of each load feedback can enter the Hydraulic Common Rail system and supplies with when needed other loads or be stored in high-pressure hydraulic accumulator.
In recent years, along with the development of industrial technology in world wide, energy shortage and problem of environmental pollution are on the rise.The loader oil consumption is high, the discharging is poor, and it is energy-conservation can not be ignored with the reduction of discharging problem.Energy-conservation research helps to reduce the heating of system, simplifies system, improves reliability and the working life of system equipment, reduces the installed power of system, thereby helps to a certain extent manufacturing and the maintenance cost of the equipment of saving.Existing oil electric mixed dynamic system energy recovery rate is low, and energy-saving effect is not obvious.
Summary of the invention
The present invention is low for solving the oil electric mixed dynamic system energy recovery rate, and the unconspicuous problem of energy-saving effect provides a kind of hybrid power full hydraulic loader hydraulic system based on the pressure common rail system.
for solving the problems of the technologies described above, the technical solution used in the present invention is: based on the hybrid power full hydraulic loader hydraulic system of pressure common rail system, comprise motor, constant displacement pump, high-pressure hydraulic accumulator, walking hydraulic mechanism Control Component, walking hydraulic mechanism, hydraulic transformer Control Component, hydraulic transformer, central controller, security component, overflow assembly, fuel tank and constant pressure variable displacement pump, central controller is used for controlling constant pressure variable displacement pump, solenoid operated directional valve, walking hydraulic mechanism Control Component, the first hydraulic transformer Control Component, the second hydraulic transformer Control Component, the 3rd hydraulic transformer Control Component, walking hydraulic mechanism Control Component is used for controlling the work of walking hydraulic mechanism, the hydraulic transformer Control Component is used for controlling hydraulic transformer work, the A mouth of the oil-feed port of walking hydraulic mechanism, the A mouth of the first hydraulic transformer, the second hydraulic transformer, the A mouth of the 3rd hydraulic transformer, the oil-feed port of the first safety valve, the oil-feed port of solenoid operated directional valve are communicated with, and the oil-feed port of walking hydraulic mechanism connects fuel tank through the first one way valve, constant pressure variable displacement pump, the oil-feed port of walking hydraulic mechanism Control Component, the oil-feed port of the first hydraulic transformer Control Component, the oil-feed port of the 3rd hydraulic transformer Control Component, the oil-feed port of the second hydraulic transformer Control Component, the oil-feed port of overflow assembly are communicated with the fuel-displaced port of constant displacement pump, and the oil-feed port of constant displacement pump connects fuel tank, the oil-feed port of relief valve assembly, the oil-feed port of the first one way valve are communicated with the fuel-displaced port of constant pressure variable displacement pump, motor and constant displacement pump, the coaxial mechanical connection of constant pressure variable displacement pump, the fuel-displaced port of the first safety valve, the fuel-displaced port of walking hydraulic mechanism, the T mouth of the first hydraulic transformer, the T mouth of the second hydraulic transformer, the T mouth of the 3rd hydraulic transformer, the fuel-displaced port of walking hydraulic mechanism Control Component, the fuel-displaced port of the first hydraulic transformer Control Component, the fuel-displaced port of the 3rd hydraulic transformer Control Component, the fuel-displaced port of the second hydraulic transformer Control Component, the fuel-displaced port of the 3rd one way valve, the oil-feed port of the second one way valve is communicated with, the fuel-displaced port of the second one way valve connects fuel tank, the oil-feed port of the 3rd one way valve connects fuel tank.
Further, described walking hydraulic mechanism comprises walking hydraulic pump or hydraulic motor; Walking hydraulic mechanism Control Component and walking hydraulic mechanism mechanical connection, hydraulic transformer Control Component and hydraulic transformer mechanical connection; Described hydraulic transformer comprises the first hydraulic transformer, the second hydraulic transformer and the 3rd hydraulic transformer; Described the first hydraulic transformer connects the swing arm fuel tank, and described the second hydraulic transformer connects the rotating bucket fuel tank, and described the 3rd hydraulic transformer connects steering oil vessel.
Further, constant pressure variable displacement pump oil-feed port connects fuel tank through the second strainer; The oil-feed port of constant displacement pump connects fuel tank through the first strainer; The fuel-displaced port of the second one way valve connects fuel tank through the 5th strainer, and the oil-feed port of the 3rd one way valve connects fuel tank through the 6th strainer.
further, the control input end of constant pressure variable displacement pump is connected with the first control output end of central controller, the control input end of solenoid operated directional valve is connected with the second control output end of central controller, the control input end of walking hydraulic mechanism Control Component is connected with the 3rd control output end of central controller, the control input end of the first hydraulic transformer Control Component is connected with the 4th control output end of central controller, the control input end of the second hydraulic transformer Control Component is connected with the 5th control output end of central controller, the control input end of the 3rd hydraulic transformer Control Component is connected with the 6th control output end of central controller.
Further, walking hydraulic mechanism Control Component is comprised of the first hydraulic control valve and the first variable oil cylinder, the P mouth of the first hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump, the O mouth of the first hydraulic control valve is communicated with fuel tank by one way valve, the 5th strainer, and the load terminal port of the first hydraulic control valve is connected with the stroking mechanism of walking hydraulic mechanism.
Further, the hydraulic transformer Control Component is comprised of the second hydraulic control valve and the second variable oil cylinder, the P mouth of the second hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump, the O mouth of the second hydraulic control valve is communicated with fuel tank by one way valve, the 5th strainer, and the load terminal port of the second hydraulic control valve is connected with the stroking mechanism of hydraulic transformer.
Further, the hydraulic transformer Control Component is comprised of the 3rd hydraulic control valve and ternary oil cylinder, the P mouth of the 3rd hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump, the O mouth of the 3rd hydraulic control valve is communicated with fuel tank by one way valve, the 5th strainer, and the load terminal port of the 3rd hydraulic control valve is connected with the stroking mechanism of hydraulic transformer.
Further, the hydraulic transformer Control Component is comprised of the 4th hydraulic control valve and the 4th variable oil cylinder, the P mouth of the 4th hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump, the O mouth of the 4th hydraulic control valve is communicated with fuel tank by one way valve, the 5th strainer, and the load terminal port of the 4th hydraulic control valve is connected with the stroking mechanism of hydraulic transformer.
Further, security component is comprised of the second safety valve and the 4th strainer, the oil-feed port of the second safety valve is communicated with the fuel-displaced port of constant pressure variable displacement pump, and the fuel-displaced port of the second safety valve is communicated with the oil-feed port of the 4th strainer, and the fuel-displaced port of the 4th strainer is communicated with fuel tank.
Further, the overflow assembly is comprised of overflow valve and the 3rd strainer, and the oil-feed port of overflow valve is communicated with the fuel-displaced port of constant displacement pump, and the fuel-displaced port of overflow valve is communicated with the oil-feed port of the 3rd strainer, and the 3rd fuel-displaced port of strainer is communicated with fuel tank.
Advantage and good effect that the present invention has are: based on the hydraulic system of the hybrid power full hydraulic loader of pressure common rail system, have the characteristics such as simple in structure, easy to operate, energy-conserving and environment-protective, can make motor always work in efficient district or idle speed zone, thereby improve the fuel economy of motor, reach the target of low emission and low oil consumption.
This system is with solving existing hybrid power system transmission efficiency, energy recovery rate and recycling rate problem on the low side.During braking, walking hydraulic pump or hydraulic motor work in the hydraulic pump operating mode, reclaim the braking kinetic energy of loader, and are stored in high-pressure hydraulic accumulator.The operating mode that the swing arm cylinder descends changes pressure by hydraulic transformer, and hydraulic energy is stored in high-pressure hydraulic accumulator.In the startup of vehicle, swing arm cylinder uphill process, the hydraulic energy of recovery provides power for vehicle.The active punching press function of hydraulic pump plays the effect of the operation condition of regulating motor, makes it work in the optimal economic district, has made up simultaneously the little shortcoming of high-pressure hydraulic accumulator energy density.Have that the hydraulic system complexity is not high, good airproof performance, compact conformation is lightweight, low cost of manufacture, and system is difficult for contaminated advantage.Native system is applicable to loader, only needs existing loader is carried out add-assembly, not only obviously improves the fuel economy of vehicle, reduces the discharging of tail gas, and improves the power performance of vehicle, has extended the application life of motor and brake gear.
Description of drawings
Fig. 1 is the structural representation of the hydraulic system of the hybrid power full hydraulic loader based on the pressure common rail system of the present invention.
In figure:
1, motor 2, constant displacement pump 3, the first one way valve
4, the first safety valve 5, high-pressure hydraulic accumulator 6, solenoid operated directional valve
7, walking hydraulic mechanism control group 8, transfer case 9, walking hydraulic press member
10, the first rotating bucket fuel tank 11, the first steering oil vessel 12, the second hydraulic transformer Control Component
13, the 3rd hydraulic transformer is controlled the 14, first hydraulic transformer 15, the first swing arm fuel tank assembly Control Component
16, the first hydraulic transformer 17, central controller 18, the 5th strainer
19, relief valve assembly 20, overflow assembly 21, the second strainer
22, the first strainer 23, fuel tank 24, constant pressure variable displacement pump
25, the 3rd one way valve 26, the 6th strainer 27, the second one way valve
28, the second swing arm fuel tank 29, the second rotating bucket fuel tank 30, the second hydraulic transformer
31, the second steering oil vessel 32, the 3rd hydraulic transformer
The specific embodiment
1 the first specific embodiment of the present invention is described by reference to the accompanying drawings, the invention provides a kind of hybrid power full hydraulic loader hydraulic system based on the pressure common rail system, comprise motor 1, constant displacement pump 2, high-pressure hydraulic accumulator 5, walking hydraulic mechanism Control Component 7, walking hydraulic mechanism 9, hydraulic transformer Control Component, hydraulic transformer, central controller 17, security component, overflow assembly, fuel tank 23 and constant pressure variable displacement pump 24; Central controller 17 is used for controlling constant pressure variable displacement pump 24, solenoid operated directional valve 6, walking hydraulic mechanism Control Component 7, the first hydraulic transformer Control Component 14, the second hydraulic transformer Control Component 12, the 3rd hydraulic transformer Control Component 13;
Walking hydraulic mechanism Control Component 7 is used for controlling 9 work of walking hydraulic mechanism;
The hydraulic transformer Control Component is used for controlling hydraulic transformer work;
The A mouth of the oil-feed port of walking hydraulic mechanism 9, the A mouth of the first hydraulic transformer 16, the second hydraulic transformer 30, the A mouth of the 3rd hydraulic transformer 32, the oil-feed port of the first safety valve 4, the oil-feed port of solenoid operated directional valve 6 are communicated with, and the oil-feed port of walking hydraulic mechanism 9 connects fuel tank 23 through the first one way valve 3, constant pressure variable displacement pump 24;
The oil-feed port of walking hydraulic mechanism Control Component 7, the oil-feed port of the first hydraulic transformer Control Component 14, the oil-feed port of the 3rd hydraulic transformer Control Component 13, the oil-feed port of the second hydraulic transformer Control Component 12, the oil-feed port of overflow assembly 20 are communicated with the fuel-displaced port of constant displacement pump 2, and the oil-feed port of constant displacement pump 2 connects fuel tank 23;
The oil-feed port of the oil-feed port of relief valve assembly 19, the first one way valve 3 is communicated with the fuel-displaced port of constant pressure variable displacement pump 24;
1 the second specific embodiment of the present invention is described by reference to the accompanying drawings, described walking hydraulic mechanism 9 comprises walking hydraulic pump or hydraulic motor; Walking hydraulic mechanism Control Component 7 and walking hydraulic mechanism 9 mechanical connections, hydraulic transformer Control Component and hydraulic transformer mechanical connection; Described hydraulic transformer comprises the first hydraulic transformer 16, the second hydraulic transformer 30 and the 3rd hydraulic transformer 32; Described the first hydraulic transformer 16 connects the swing arm fuel tank, and described the second hydraulic transformer 30 connects the rotating bucket fuel tank, and described the 3rd hydraulic transformer 32 connects steering oil vessel.Other composition and annexation are identical with the specific embodiment one.Described swing arm fuel tank comprises the first swing arm fuel tank 15 and the second swing arm fuel tank 28; Described rotating bucket fuel tank comprises the first rotating bucket fuel tank 10 and the second rotating bucket fuel tank 29; Described steering oil vessel comprises the first steering oil vessel 11 and the second steering oil vessel 31.
1 the third specific embodiment of the present invention is described by reference to the accompanying drawings, constant pressure variable displacement pump 24 oil-feed ports connect fuel tanks 23 through the second strainer 21; The oil-feed port of constant displacement pump 2 connects fuel tank 23 through the first strainer 22; The fuel-displaced port of the second one way valve 27 connects fuel tank 23, the three one way valves 25 through the 5th strainer 18 oil-feed port connects fuel tank 23 through the 6th strainer 26.Other composition and annexation are identical with the specific embodiment one.
1 the 4th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, the control input end of constant pressure variable displacement pump 24 is connected with the first control output end of central controller 17, the control input end of solenoid operated directional valve 6 is connected with the second control output end of central controller 17, the control input end of walking hydraulic mechanism Control Component 7 is connected with the 3rd control output end of central controller 17, the control input end of the first hydraulic transformer Control Component 14 is connected with the 4th control output end of central controller 17, the control input end of the second hydraulic transformer Control Component 12 is connected with the 5th control output end of central controller 17, the control input end of the 3rd hydraulic transformer Control Component 13 is connected with the 6th control output end of central controller 17.Other composition and annexation are identical with the specific embodiment one.
1 the 5th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, walking hydraulic mechanism Control Component 7 is comprised of the first hydraulic control valve and the first variable oil cylinder, the P mouth of the first hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump 2, the O mouth of the first hydraulic control valve is communicated with fuel tank 23 by one way valve 27, the 5th strainer 18, and the load terminal port of the first hydraulic control valve is connected with the stroking mechanism of walking hydraulic mechanism 9.Other composition and annexation are identical with the specific embodiment one.
1 the 6th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, hydraulic transformer Control Component 14 is comprised of the second hydraulic control valve and the second variable oil cylinder, the P mouth of the second hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump 2, the O mouth of the second hydraulic control valve is communicated with fuel tank 23 by one way valve 27, the 5th strainer 18, and the load terminal port of the second hydraulic control valve is connected with the stroking mechanism of hydraulic transformer 16.Other composition and annexation are identical with the specific embodiment one.
1 the 7th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, hydraulic transformer Control Component 12 is comprised of the 3rd hydraulic control valve and ternary oil cylinder, the P mouth of the 3rd hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump 2, the O mouth of the 3rd hydraulic control valve is communicated with fuel tank 23 by one way valve 27, the 5th strainer 18, and the load terminal port of the 3rd hydraulic control valve is connected with the stroking mechanism of hydraulic transformer 30.Other composition and annexation are identical with the specific embodiment one.
1 the 8th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, hydraulic transformer Control Component 13 is comprised of the 4th hydraulic control valve and the 4th variable oil cylinder, the P mouth of the 4th hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump 2, the O mouth of the 4th hydraulic control valve is communicated with fuel tank 23 by one way valve 27, the 5th strainer 18, and the load terminal port of the 4th hydraulic control valve is connected with the stroking mechanism of hydraulic transformer 32.Other composition and annexation are identical with the specific embodiment one.
1 the 9th kind of specific embodiment of the present invention is described by reference to the accompanying drawings, security component 19 is comprised of the second safety valve and the 4th strainer, the oil-feed port of the second safety valve is communicated with the fuel-displaced port of constant pressure variable displacement pump 24, the fuel-displaced port of the second safety valve is communicated with the oil-feed port of the 4th strainer, and the fuel-displaced port of the 4th strainer is communicated with fuel tank 23.Other composition and annexation are identical with the specific embodiment one.
1 the of the present invention ten kind of specific embodiment is described by reference to the accompanying drawings, overflow assembly 20 is comprised of overflow valve and the 3rd strainer, the oil-feed port of overflow valve is communicated with the fuel-displaced port of constant displacement pump 2, the fuel-displaced port of overflow valve is communicated with the oil-feed port of the 3rd strainer, and the 3rd fuel-displaced port of strainer is communicated with fuel tank 23.Other composition and annexation are identical with the specific embodiment one.
The course of work of this example: during the starting of (1) loader walking mechanism; central controller 17 identifies the required driving torque of vehicle according to the displacement signal of gas pedal; and send a signal to walking hydraulic mechanism Control Component 7; regulated the swashplate angle of walking hydraulic mechanism 9 by walking hydraulic mechanism Control Component 7; make it work in the motor operating mode; central controller 17 is controlled 6 unlatchings of 2/2-way solenoid operated directional valve simultaneously; high-pressure hydraulic accumulator 5 provides high pressure fuel source for walking hydraulic mechanism Control Component 7, but motor 1 idling or shutdown.
(2) when loader is normally walked, constant pressure variable displacement pump 24 is under the drive of motor 1, form constant pressure oil source with high-pressure hydraulic accumulator 5 and security component 19, walking hydraulic mechanism 9 is by transfer case 8, vehicle bridge, differential mechanism drives the loader tire motion, during the power that can export in the economic zone greater than motor 1 when bearing power, compensate by high-pressure hydraulic accumulator 5 exoergics, during the power that can export in the economic zone less than motor 1 when bearing power, fill and to compensate by high-pressure hydraulic accumulator 5, make engine operation in best fuel-economy district.
(3) when the loader walking mechanism is braked, central controller 17 is determined the size of braking moment according to the displacement signal identification of brake pedal.Central controller 17 transmits control signal to walking hydraulic mechanism Control Component 7, regulated the swashplate angle of walking hydraulic mechanism 9 by walking hydraulic mechanism Control Component 7, make it work in the pump operating mode, central controller 17 is controlled solenoid operated directional valve 6 and is opened, high-pressure hydraulic accumulator 5 and walking hydraulic mechanism 9 provide essential braking torque for vehicle, and the braking kinetic energy of while vehicle drags walking hydraulic mechanism 9 hydraulic oil is pressed in high-pressure hydraulic accumulator 5 by fuel tank 23.If when the pressure of high-pressure hydraulic accumulator 5 surpassed the default maximum pressure, hydraulic oil flowed back to fuel tank by the first safety valve 4.
(4) when loader operating mechanism swing arm cylinder rises, central controller 17 identifies the required power of vehicle lifting heavy according to the displacement signal of control stick, and send a signal to the first hydraulic transformer Control Component 14, come the oil distribution casing corner of regulator solution pressure transformer by the first hydraulic transformer Control Component 14, change the hydraulic oil of rod chamber into hydraulic oil by the first hydraulic transformer 16, entered by the B mouth.
(5) when loader operating mechanism swing arm cylinder descends, central controller 17 directly sends to the first hydraulic transformer Control Component 14 with the displacement signal of control stick, come the oil distribution casing corner of regulator solution pressure transformer by the first hydraulic transformer Control Component 14, the hydraulic oil of hydraulic cylinder rodless cavity flows into the first hydraulic transformer 16 by the B mouth, becoming hydraulic oil through hydraulic transformer is stored in high pressure accumulator from the outflow of A mouth, central controller 17 is controlled solenoid operated directional valve 6 unlatchings simultaneously, hydraulic oil is pressed in high-pressure hydraulic accumulator 5 stored energy by the A mouth.If when the pressure of high-pressure hydraulic accumulator 5 surpassed the default maximum pressure, hydraulic oil flowed back to fuel tank by the first safety valve 4.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., within all should still belonging to patent covering scope of the present invention.
Claims (10)
1. based on the hybrid power full hydraulic loader hydraulic system of pressure common rail system, comprise motor (1), constant displacement pump (2), high-pressure hydraulic accumulator (5), walking hydraulic mechanism Control Component (7), walking hydraulic mechanism (9), hydraulic transformer Control Component, hydraulic transformer, central controller (17), security component, overflow assembly, fuel tank (23) and constant pressure variable displacement pump (24); It is characterized in that:
Central controller (17) is used for controlling constant pressure variable displacement pump (24), solenoid operated directional valve (6), walking hydraulic mechanism Control Component (7), the first hydraulic transformer Control Component (14), the second hydraulic transformer Control Component (12), the 3rd hydraulic transformer Control Component (13);
Walking hydraulic mechanism Control Component (7) is used for controlling walking hydraulic mechanism (9) work;
The hydraulic transformer Control Component is used for controlling hydraulic transformer work;
The oil-feed port of the A mouth of the oil-feed port of walking hydraulic mechanism (9), the A mouth of the first hydraulic transformer (16), the second hydraulic transformer (30), the A mouth of the 3rd hydraulic transformer (32), the first safety valve (4), the oil-feed port of solenoid operated directional valve (6) are communicated with, and the oil-feed port of walking hydraulic mechanism (9) connects fuel tank (23) through the first one way valve (3), constant pressure variable displacement pump (24);
The oil-feed port of walking hydraulic mechanism Control Component (7), the oil-feed port of the first hydraulic transformer Control Component (14), the oil-feed port of the 3rd hydraulic transformer Control Component (13), the oil-feed port of the second hydraulic transformer Control Component (12), the oil-feed port of overflow assembly (20) are communicated with the fuel-displaced port of constant displacement pump (2), and the oil-feed port of constant displacement pump (2) connects fuel tank (23);
The oil-feed port of the oil-feed port of relief valve assembly (19), the first one way valve (3) is communicated with the fuel-displaced port of constant pressure variable displacement pump (24);
motor (1) and constant displacement pump (2), the coaxial mechanical connection of constant pressure variable displacement pump (24), the fuel-displaced port of the first safety valve (4), the fuel-displaced port of walking hydraulic mechanism (9), the T mouth of the first hydraulic transformer (16), the T mouth of the second hydraulic transformer (30), the T mouth of the 3rd hydraulic transformer (32), the fuel-displaced port of walking hydraulic mechanism Control Component (7), the fuel-displaced port of the first hydraulic transformer Control Component (14), the fuel-displaced port of the 3rd hydraulic transformer Control Component (13), the fuel-displaced port of the second hydraulic transformer Control Component (12), the fuel-displaced port of the 3rd one way valve (25), the oil-feed port of the second one way valve (27) is communicated with, the fuel-displaced port of the second one way valve (27) connects fuel tank (23), the oil-feed port of the 3rd one way valve (25) connects fuel tank (23).
2. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1 is characterized in that: described walking hydraulic mechanism (9) comprises walking hydraulic pump or hydraulic motor; Walking hydraulic mechanism Control Component (7) and walking hydraulic mechanism (9) mechanical connection, hydraulic transformer Control Component and hydraulic transformer mechanical connection; Described hydraulic transformer comprises the first hydraulic transformer (16), the second hydraulic transformer (30) and the 3rd hydraulic transformer (32); Described the first hydraulic transformer (16) connects the swing arm fuel tank, and described the second hydraulic transformer (30) connects the rotating bucket fuel tank, and described the 3rd hydraulic transformer (32) connects steering oil vessel.
3. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1 and 2 is characterized in that: constant pressure variable displacement pump (24) oil-feed port connects fuel tank (23) through the second strainer (21); The oil-feed port of constant displacement pump (2) connects fuel tank (23) through the first strainer (22); The fuel-displaced port of the second one way valve (27) connects fuel tank (23) through the 5th strainer (18), and the oil-feed port of the 3rd one way valve (25) connects fuel tank (23) through the 6th strainer (26).
4. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: the control input end of constant pressure variable displacement pump (24) is connected with the first control output end of central controller (17), the control input end of solenoid operated directional valve (6) is connected with the second control output end of central controller (17), the control input end of walking hydraulic mechanism Control Component (7) is connected with the 3rd control output end of central controller (17), the control input end of the first hydraulic transformer Control Component (14) is connected with the 4th control output end of central controller (17), the control input end of the second hydraulic transformer Control Component (12) is connected with the 5th control output end of central controller (17), the control input end of the 3rd hydraulic transformer Control Component (13) is connected with the 6th control output end of central controller (17).
5. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: walking hydraulic mechanism Control Component (7) is comprised of the first hydraulic control valve and the first variable oil cylinder, the P mouth of the first hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump (2), the O mouth of the first hydraulic control valve is communicated with fuel tank (23) by one way valve (27), the 5th strainer (18), and the load terminal port of the first hydraulic control valve is connected with the stroking mechanism of walking hydraulic mechanism (9).
6. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: hydraulic transformer Control Component (14) is comprised of the second hydraulic control valve and the second variable oil cylinder, the P mouth of the second hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump (2), the O mouth of the second hydraulic control valve is communicated with fuel tank (23) by one way valve (27), the 5th strainer (18), and the load terminal port of the second hydraulic control valve is connected with the stroking mechanism of hydraulic transformer (16).
7. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: hydraulic transformer Control Component (12) is comprised of the 3rd hydraulic control valve and ternary oil cylinder, the P mouth of the 3rd hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump (2), the O mouth of the 3rd hydraulic control valve is communicated with fuel tank (23) by one way valve (27), the 5th strainer (18), and the load terminal port of the 3rd hydraulic control valve is connected with the stroking mechanism of hydraulic transformer (30).
8. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: hydraulic transformer Control Component (13) is comprised of the 4th hydraulic control valve and the 4th variable oil cylinder, the P mouth of the 4th hydraulic control valve is communicated with the fuel-displaced port of constant displacement pump (2), the O mouth of the 4th hydraulic control valve is communicated with fuel tank (23) by one way valve (27), the 5th strainer (18), and the load terminal port of the 4th hydraulic control valve is connected with the stroking mechanism of hydraulic transformer (32).
9. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: security component (19) is comprised of the second safety valve and the 4th strainer, the oil-feed port of the second safety valve is communicated with the fuel-displaced port of constant pressure variable displacement pump (24), the fuel-displaced port of the second safety valve is communicated with the oil-feed port of the 4th strainer, and the fuel-displaced port of the 4th strainer is communicated with fuel tank (23).
10. the hybrid power full hydraulic loader hydraulic system based on the pressure common rail system according to claim 1, it is characterized in that: overflow assembly (20) is comprised of overflow valve and the 3rd strainer, the oil-feed port of overflow valve is communicated with the fuel-displaced port of constant displacement pump (2), the fuel-displaced port of overflow valve is communicated with the oil-feed port of the 3rd strainer, and the 3rd fuel-displaced port of strainer is communicated with fuel tank (23).
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| CN103362171A (en) * | 2013-07-29 | 2013-10-23 | 哈尔滨工业大学 | Hydraulic hybrid power excavator hydraulic system with switching control function |
| CN103397677A (en) * | 2013-08-09 | 2013-11-20 | 太原科技大学 | Hydraulic excavator movable arm loop based on hydraulic transformer and control method thereof |
| CN104032791A (en) * | 2014-05-28 | 2014-09-10 | 广西柳工机械股份有限公司 | Quantitative and variable hydraulic system of loading machine |
| CN104831775A (en) * | 2015-05-14 | 2015-08-12 | 上海理工大学 | Excavator hydraulic system having engine start/stop function and adopting active pressure-adjusted type pressure common rail |
| WO2015191661A1 (en) | 2014-06-10 | 2015-12-17 | Eaton Corporation | Energy recovery system for off-highway vehicles with hydraulic transformer coupled to transmission power take-off |
| CN106015137A (en) * | 2016-07-18 | 2016-10-12 | 江苏大学 | Multifunctional hydraulic system |
| CN107055328A (en) * | 2017-03-24 | 2017-08-18 | 中国人民解放军装甲兵工程学院 | Hydraulic system and the hoisting apparatus for rescue |
| CN107503997A (en) * | 2017-09-15 | 2017-12-22 | 太原理工大学 | Back pressure and the double actuator systems of power matching hydraulic hybrid regulation and control |
| CN111332120A (en) * | 2020-03-12 | 2020-06-26 | 山推工程机械股份有限公司 | Hydraulic drive traveling system and loader |
| CN111836933A (en) * | 2018-03-09 | 2020-10-27 | 采埃孚股份公司 | Drive for a working machine |
| CN114908834A (en) * | 2022-06-21 | 2022-08-16 | 吉林大学 | Full-hydraulic walking and operation hybrid power wheel loader |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6434864B1 (en) * | 2000-09-22 | 2002-08-20 | Grigoriy Epshteyn | Frontal loader |
| US20060075750A1 (en) * | 2004-10-08 | 2006-04-13 | Terence Evans | Ride control circuit for a work machine |
| CN101718107A (en) * | 2009-11-24 | 2010-06-02 | 哈尔滨工业大学 | Hydraulic system of hybrid power full-hydraulic excavator based on CPR network |
| CN202416431U (en) * | 2011-12-27 | 2012-09-05 | 山重建机(济宁)有限公司 | Hybrid hydraulic excavator |
| CN102877495A (en) * | 2012-09-11 | 2013-01-16 | 华南理工大学 | Hybrid power system for recovering potential energy of movable arm of excavating machine |
-
2013
- 2013-03-12 CN CN2013100776037A patent/CN103161190A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6434864B1 (en) * | 2000-09-22 | 2002-08-20 | Grigoriy Epshteyn | Frontal loader |
| US20060075750A1 (en) * | 2004-10-08 | 2006-04-13 | Terence Evans | Ride control circuit for a work machine |
| CN101718107A (en) * | 2009-11-24 | 2010-06-02 | 哈尔滨工业大学 | Hydraulic system of hybrid power full-hydraulic excavator based on CPR network |
| CN202416431U (en) * | 2011-12-27 | 2012-09-05 | 山重建机(济宁)有限公司 | Hybrid hydraulic excavator |
| CN102877495A (en) * | 2012-09-11 | 2013-01-16 | 华南理工大学 | Hybrid power system for recovering potential energy of movable arm of excavating machine |
Non-Patent Citations (1)
| Title |
|---|
| 姜继海，于安才，沈伟: "基于CPR网络的全液压混合动力挖掘机", 《液压与气动》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362171B (en) * | 2013-07-29 | 2015-04-29 | 哈尔滨工业大学 | Hydraulic hybrid power excavator hydraulic system with switching control function |
| CN103362171A (en) * | 2013-07-29 | 2013-10-23 | 哈尔滨工业大学 | Hydraulic hybrid power excavator hydraulic system with switching control function |
| CN103397677A (en) * | 2013-08-09 | 2013-11-20 | 太原科技大学 | Hydraulic excavator movable arm loop based on hydraulic transformer and control method thereof |
| CN103397677B (en) * | 2013-08-09 | 2015-10-07 | 太原科技大学 | Based on hydraulic excavator movable arm loop and the control method thereof of hydraulic transformer |
| CN104032791B (en) * | 2014-05-28 | 2016-05-04 | 广西柳工机械股份有限公司 | A kind of loading machine is determined variable delivery hydraulic system |
| CN104032791A (en) * | 2014-05-28 | 2014-09-10 | 广西柳工机械股份有限公司 | Quantitative and variable hydraulic system of loading machine |
| WO2015191661A1 (en) | 2014-06-10 | 2015-12-17 | Eaton Corporation | Energy recovery system for off-highway vehicles with hydraulic transformer coupled to transmission power take-off |
| US11286642B2 (en) | 2014-06-10 | 2022-03-29 | Danfoss Power Solutions Ii Technology A/S | Energy recovery system for off-highway vehicles with hydraulic transformer coupled to transmission power take-off |
| EP3154809A4 (en) * | 2014-06-10 | 2018-06-13 | Eaton Corporation | Energy recovery system for off-highway vehicles with hydraulic transformer coupled to transmission power take-off |
| CN104831775B (en) * | 2015-05-14 | 2017-07-28 | 上海理工大学 | A kind of excavator hydraulic system of the use active pressure-adjusting type pressure common rail with engine start and stop function |
| CN104831775A (en) * | 2015-05-14 | 2015-08-12 | 上海理工大学 | Excavator hydraulic system having engine start/stop function and adopting active pressure-adjusted type pressure common rail |
| CN106015137B (en) * | 2016-07-18 | 2018-08-10 | 江苏大学 | A kind of multi-purpose hydraulic system |
| CN106015137A (en) * | 2016-07-18 | 2016-10-12 | 江苏大学 | Multifunctional hydraulic system |
| CN107055328A (en) * | 2017-03-24 | 2017-08-18 | 中国人民解放军装甲兵工程学院 | Hydraulic system and the hoisting apparatus for rescue |
| CN107055328B (en) * | 2017-03-24 | 2019-05-10 | 中国人民解放军装甲兵工程学院 | Hydraulic system and hoisting apparatus for rescue |
| CN107503997A (en) * | 2017-09-15 | 2017-12-22 | 太原理工大学 | Back pressure and the double actuator systems of power matching hydraulic hybrid regulation and control |
| CN111836933A (en) * | 2018-03-09 | 2020-10-27 | 采埃孚股份公司 | Drive for a working machine |
| CN111836933B (en) * | 2018-03-09 | 2022-07-19 | 采埃孚股份公司 | Drive for a working machine |
| CN111332120A (en) * | 2020-03-12 | 2020-06-26 | 山推工程机械股份有限公司 | Hydraulic drive traveling system and loader |
| CN111332120B (en) * | 2020-03-12 | 2022-02-18 | 山推工程机械股份有限公司 | Hydraulic drive traveling system and loader |
| CN114908834A (en) * | 2022-06-21 | 2022-08-16 | 吉林大学 | Full-hydraulic walking and operation hybrid power wheel loader |
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