CN205876871U - Automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy - Google Patents
Automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy Download PDFInfo
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- CN205876871U CN205876871U CN201620483640.7U CN201620483640U CN205876871U CN 205876871 U CN205876871 U CN 205876871U CN 201620483640 U CN201620483640 U CN 201620483640U CN 205876871 U CN205876871 U CN 205876871U
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Abstract
The utility model discloses an automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy, it has the internal -combustion engine, the driving pump, guide's pump, the multiple unit valve, the hydraulically controlled check valve, an unidirectional valve, the overflow valve, magenetic exchange valve, the pilot operated directional control valve, the shuttle valve, hydraulic accumulator and revolving stage etc, the revolving stage is under gyration operating handle's control, start the gyration and stop to brake duty cycle, because making to start to produce with the braking in -process in the twinkling of an eye, the inertia of revolving stage has the hydraulic oil than high pressure at this in -process, in flowing in hydraulic accumulator through the control valve, the loss of energy has been avoided, when energy storage ware pressure is higher than gyration motor's pressure, can come out the motion of auxiliary drive revolving stage again through automatically released such as pilot operated directional control valves to the energy loss of hydraulic pump has been reduced. Through the utility model provides a revolving stage actuating system can be realized starting the revolving stage and retrieve and recycle with the energy of braking in -process, improves the energy use rate, reduces energy consumption.
Description
Technical field
This utility model relates to hydraulic control system art, refers in particular to a kind of engineering machinery turntable energy and automatically returns
Receive and the drive system of recycling.
Background technology
Along with the development of global economy, global warming and energy crisis are day by day serious, therefore energy is all improving in national governments
Source efficiency, tap a new source of energy, the aspect such as energy-saving and emission-reduction proposes new demand.Engineering machinery rises emphatically in national product construction
Acting on, but be also current energy consumption rich and influential family, the energy recovery and reuse problem in research engineering machinery is for improving engineering
The efficiency of machinery, reduces energy expenditure and has important and positive effect.
Engineering machinery needs continuous reciprocating rotating to complete to work accordingly in the course of the work, in the process, turns
Platform is the most constantly among the circulation of Acceleration of starting and stopping braking.In tradition rotary system, when turntable is by static
During Acceleration of starting, owing to turntable is a large inertia system, the hydraulic oil major part that therefore hydraulic pump provides is through overflow
Relief valve oil sump tank, only after the rotating speed of turntable raises, the pressure in rotary motor chamber reduces, and the hydraulic oil that hydraulic pump provides is
Fully enter rotary motor and promote rotation of rotary table；When revolution operation handle returns to middle position, rotary motor and banked direction control valves are cut off
Between oil circuit, now due to turntable have inertia continue to revolution, now cause the pressure of oil back chamber to raise, exceed overflow pacify
The setting pressure of full valve and produce overflow.Therefore, during one cycle of operation of turntable reciprocating rotating, four overflows are had to damage
Consumption, causes substantial amounts of energy expenditure, and produces substantial amounts of heat, have a strong impact on the safe and stable operation of engineering machinery.
Recovery for rotation energy at present is broadly divided into electric and fluid pressure type two class.Electric energy-recuperation system
Turntable is replaced hydraulic motor directly to drive by motor, and when retarding braking, braking kinetic energy passes through electric motor operation at electromotor
Pattern is converted into electrical power storage in battery or super capacitor, but due to additionally to increase hydraulic motor-electromotor and battery or
Super capacitor, cost is high, and system complex does not have universal adaptability.Fluid pressure type energy-recuperation system is divided into again two kinds, Yi Zhongshi
Energy conserving system based on Secondary Control loop, a kind of is energy-recuperation system based on hydraulic accumulator.Return based on Secondary Control
, there is not valve control restriction loss in the system on road in working connection, the efficiency of rotary system can be greatly improved, but adjust based on secondary
The energy conserving system in joint loop need to be equipped with hydraulic transformer, and diversified in specifications, easily increases system reform cost, additionally hydraulic transformer
Technology is the most immature, and this technology is also difficult in actual product popularization and application in addition.Turntable energy based on hydraulic accumulator returns
Receipts system is less to the change of original system, and cost is relatively low.But existing research is mostly focused on the recovery of braking energy, for
The recovery of start-up energy is limited only to scheme and simulation stage；And various energy recovery and reuse based on hydraulic accumulator
System, although can automatically reclaim starting and braking energy, but during energy recycling, but need individually to control, it is impossible to root
It is automatically releasable according to operating mode, adds difficulty and the complexity of control.
Utility model content
In view of this, this utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of engineering machine
The drive system that tool turntable energy recycles automatically, its can automatically reclaim turntable start and braking procedure in produce overflow
Stream energy, and be automatically releasable out during rotation of rotary table according to the pressure of rotary motor and hydraulic accumulator, auxiliary hydraulic pressure
Pump completes the driving to turntable, thus reduces the consumption of energy, improves the efficiency of drive system, and is prevented effectively from owing to being
The amount of heat that system produces because of the energy loss impact on hydraulic system stability.
For achieving the above object, this utility model uses such as purgation technical scheme:
The drive system that a kind of engineering machinery turntable energy recycles automatically, including driving pump, pioneer pump, revolution
Operation handle, check valve, relief valve, banked direction control valves, hydraulic control one-way valve, overflow relief valve, repairing check valve, rotary motor, deceleration
Device, turntable, the first shuttle valve, the first two-position two-way hydraulic control reversal valve, two-position three way pilot operated directional control valve, the second two-position two-way hydraulic control change
To valve, the second shuttle valve, 3-position-3-way solenoid directional control valve, bi-bit bi-pass solenoid directional control valve, electric-control system, internal combustion engine, hydraulic energy-accumulating
Device and overflow valve；
Described rotary motor is connected with the power shaft of decelerator, and the output shaft of decelerator is connected with turntable；Drive pump and elder generation
Lead pump to be co-axially mounted with internal combustion engine, drive the inlet port of pump and pioneer pump all to communicate with fuel tank, drive the oil-out of pump with unidirectional
The entrance of valve communicates, and guide's delivery side of pump is connected with the oil-in of revolution operation handle；Oil-out one tunnel of check valve and safety
Valve is connected, and a road is connected with the oil-in of banked direction control valves；Banked direction control valves oil return opening is directly connected with fuel tank, and the left and right of banked direction control valves controls oil
Two oil-outs that mouth operates handle with revolution respectively are connected；The control of revolution operation handle is by electric control system controls；Revolution behaviour
Two oil-outs making handle divide three tunnels, a road to be connected with the control port of banked direction control valves respectively, a road and the control of hydraulic control one-way valve
Liquefaction mouth is connected, and a road is connected with an oil-in of the second shuttle valve；The two-way oil-out of banked direction control valves is symmetrical, each point five, every road
Branch road, respectively with entrance, overflow relief valve, the outlet of repairing check valve, rotary motor oil-in and of hydraulic control one-way valve
One shuttle valve is connected；The control port of hydraulic control one-way valve is connected with the oil-out of revolution operation handle, and oil-out divides three tunnels, the first via
Being connected with the outlet of another hydraulic control one-way valve, the second tunnel is connected with the entrance of two-position three way pilot operated directional control valve, the 3rd tunnel and first
The entrance of two-position two-way hydraulic control reversal valve is connected；The oil-out of overflow relief valve is connected with fuel tank；The oil-in of repairing check valve
It is connected with fuel tank；
The output oil port of described first shuttle valve and the downside control port of the first two-position two-way hydraulic control reversal valve are connected；Described
The upside control port of the first two-position two-way hydraulic control reversal valve is connected with the oil-in of hydraulic accumulator；First two-position two-way hydraulic control
The oil-out of reversal valve is connected with the oil-in of hydraulic accumulator；
The upside of described two-position three way pilot operated directional control valve is spring, the oil-out phase of the control port of downside and the second shuttle valve
Even；The upside hydraulic fluid port of two-position three way pilot operated directional control valve is connected with the hydraulic fluid port of hydraulic accumulator, and downside hydraulic fluid port is connected with fuel tank, fuel-displaced
Mouth is connected with the control port on the upside of the second two-position two-way hydraulic control reversal valve；
The downside of described second two-position two-way hydraulic control reversal valve is spring, and oil-in is upper with 3-position-3-way solenoid directional control valve
Side hydraulic fluid port is connected, and oil-out is connected with hydraulic accumulator；The downside hydraulic fluid port of described 3-position-3-way solenoid directional control valve is connected with fuel tank,
The power-on and power-off Magnet of 3-position-3-way solenoid directional control valve is by electric control system controls；
Oil-in one tunnel of described hydraulic accumulator is connected with overflow valve, a road and the first two-position two-way hydraulic control reversal valve
Outlet is connected, and a road is connected with the upside control port of the first two-position two-way hydraulic control reversal valve, a road and the second bi-bit bi-pass liquid
The outlet of control reversal valve is connected, and a road is connected with the oil-in of two-position three way pilot operated directional control valve, and a road is changed with bi-bit bi-pass electromagnetism
It is connected to the oil-in of valve；The electric magnet of described bi-bit bi-pass solenoid directional control valve is by ECU control；
Described internal combustion engine, 3-position-3-way solenoid directional control valve, bi-bit bi-pass solenoid directional control valve, the control letter of revolution operation handle
Number by electric control system controls.
This utility model compared with prior art has clear advantage and beneficial effect, specifically, by above-mentioned technology
Scheme understands:
By arranging corresponding hydraulic valve between rotary motor with hydraulic accumulator, detect hydraulic pump outlet pressure,
The revolution operation output pressure of handle, rotary motor two cavity pressure and the pressure of hydraulic accumulator, and make corresponding reversal valve
It is in corresponding operating position, the different-energy circulation passage between connection rotary motor chamber and hydraulic accumulator so that drive
System is not required to install a lot of pressure transducers can realize the comparison of pressure, is automatically performed and returns gyroscopic drive system energy
Receive and recycling.On the one hand reduce the energy expenditure of turntable drive system, enhance the stability that drive system is run, another
Aspect simplifies control system, improves the reliability of control system.
For more clearly illustrating architectural feature of the present utility model and effect, it is right to come with specific embodiment below in conjunction with the accompanying drawings
This utility model is described in detail:
Accompanying drawing explanation
Fig. 1 is the Acceleration of starting Principle of Process schematic diagram of the preferred embodiment of this utility model；
Fig. 2 is the operation principle schematic diagram during noenergy recycling and reuse of the preferred embodiment of this utility model；
Fig. 3 is the Brake energy recovery principle schematic of the preferred embodiment of this utility model；
Fig. 4 is the turntable of the preferred embodiment of this utility model fluid power system figure when being in static；
Fig. 5 is the multilevel energy recycle and reuse operation principle schematic diagram of the preferred embodiment of this utility model.
Accompanying drawing identifier declaration:
1, pump 2, pioneer pump are driven
3, revolution operation handle 4, check valve
5, relief valve 6, banked direction control valves
71,72, hydraulic control one-way valve 81,82, overflow relief valve
91,92, repairing check valve 10, rotary motor
11, decelerator 12, turntable
13, first shuttle valve the 14, first two-position two-way hydraulic control reversal valve
15, two-position three way pilot operated directional control valve the 16, second two-position two-way hydraulic control reversal valve
17, the second shuttle valve 18,3-position-3-way solenoid directional control valve
19, bi-bit bi-pass solenoid directional control valve 20, electric-control system
21, internal combustion engine 22, hydraulic accumulator
23, overflow valve
Detailed description of the invention
Refer to shown in Fig. 1 to Fig. 5, that show the concrete structure of the preferred embodiment of this utility model, include
Drive pump 1, pioneer pump 2, revolution operation handle 3, check valve 4, relief valve 5, banked direction control valves 6, hydraulic control one-way valve 71,72, overflow peace
Full valve 81,82, repairing check valve 91,92, rotary motor 10, decelerator 11, turntable the 12, first shuttle valve the 13, first bi-bit bi-pass
Pilot operated directional control valve 14, two-position three way pilot operated directional control valve the 15, second two-position two-way hydraulic control reversal valve the 16, second shuttle valve 17, three three
Electric change valve 18, bi-bit bi-pass solenoid directional control valve 19, electric-control system 20, internal combustion engine 21, hydraulic accumulator 22 and overflow valve
23。
Described rotary motor 10 is connected with the power shaft of decelerator 11, and the output shaft of decelerator 11 is connected with turntable 12；Drive
Dynamic pump 1 and pioneer pump 2 are co-axially mounted with internal combustion engine 21, drive the inlet port of pump 1 and pioneer pump 2 all to communicate with fuel tank, drive pump 1
Oil-out communicate with the entrance of check valve 4, pioneer pump 2 outlet with revolution operation handle 3 oil-in be connected；Check valve 4
Oil-out one tunnel be connected with relief valve 5, a road is connected with the oil-in of banked direction control valves 6；Banked direction control valves 6 oil return opening directly with fuel tank phase
Even, two oil-outs that the left and right control port of banked direction control valves 6 operates handle 3 with revolution respectively are connected；The control of revolution operation handle 3
System is controlled by electric-control system 20；Two oil-outs of revolution operation handle 3 divide three tunnels respectively, and a road is oily with the control of banked direction control valves 6
Mouth is connected, and a road is connected with the control port of hydraulic control one-way valve 71,72, and a road is connected with an oil-in of the second shuttle valve 17；
The two-way oil-out of banked direction control valves 6 is symmetrical, five branch roads in each point of every road, respectively with entrance, the overflow safety of hydraulic control one-way valve 71,72
Valve 81,82, the outlet of repairing check valve 91,92, rotary motor 10 oil-in and the first shuttle valve 13 are connected；Hydraulic control one-way valve 71
Control port be connected with the oil-out of revolution operation handle 3, oil-out divides three tunnels, the first via and another hydraulic control one-way valve 72
Outlet is connected, and the second tunnel is connected with the entrance of two-position three way pilot operated directional control valve 15, the 3rd tunnel and the first two-position two-way hydraulic control commutation
The entrance of valve 14 is connected；The oil-out of overflow relief valve 81,82 is connected with fuel tank；The oil-in of repairing check valve 91,92 and oil
Case is connected.
The output oil port of described first shuttle valve 13 and the downside control port of the first two-position two-way hydraulic control reversal valve 14 are connected；
The described upside control port of the first two-position two-way hydraulic control reversal valve 14 is connected with the oil-in of hydraulic accumulator 22；One or two
The oil-out of two-way pilot operated directional control valve 14 is connected with the oil-in of hydraulic accumulator 22.
The upside of described two-position three way pilot operated directional control valve 15 is spring, and the control port of downside is fuel-displaced with the second shuttle valve 17
Mouth is connected；The upside hydraulic fluid port of two-position three way pilot operated directional control valve 15 is connected with the hydraulic fluid port of hydraulic accumulator 22, downside hydraulic fluid port and fuel tank
Being connected, the control port on the upside of oil-out and the second two-position two-way hydraulic control reversal valve 16 is connected.
The downside of described second two-position two-way hydraulic control reversal valve 16 is spring, oil-in and 3-position-3-way solenoid directional control valve 18
Upside hydraulic fluid port be connected, oil-out is connected with hydraulic accumulator 22；The downside hydraulic fluid port of described 3-position-3-way solenoid directional control valve 18 with
Fuel tank is connected, and power-on and power-off Magnet 18a, 18b of 3-position-3-way solenoid directional control valve 18 are controlled by electric-control system 20.
Oil-in one tunnel of described hydraulic accumulator 22 is connected with overflow valve 23, a road and the first two-position two-way hydraulic control commutation
The outlet of valve 14 is connected, and a road is connected with the upside control port of the first two-position two-way hydraulic control reversal valve 14, a road and the two or two
The outlet of position two-way pilot operated directional control valve 16 is connected, and a road is connected with the oil-in of two-position three way pilot operated directional control valve 15, a road and two
The oil-in of position two electric change valves 19 is connected；The electric magnet of described bi-bit bi-pass solenoid directional control valve 19 is by ECU control
System.
Described internal combustion engine 21,3-position-3-way solenoid directional control valve 18, bi-bit bi-pass solenoid directional control valve 19, revolution operation handle 3
Control signal by electric control system controls.
Different operating below according to the drive system that the present embodiment engineering machinery turntable energy recycles automatically
The drive system of the present embodiment is used and is described further by the stage.
(1) the Acceleration of starting stage:
When the revolution operation handle 3 characterizing revolution leaves middle position (as a example by left revolution) to left movement, electric-control system 20
The next electric magnet 18b making 3-position-3-way solenoid directional control valve 18 is energized, the next work；Pioneer pump 2 is through revolution operation handle 3 simultaneously
Left side output hydraulic oil, right side hydraulic fluid port then exports low pressure oil；The hydraulic oil of output is respectively acting on the left of banked direction control valves 6, second
The right side of shuttle valve 17 and the control port of the hydraulic control one-way valve 71 in left side.Second shuttle valve 17 exports hydraulic oil and acts on two-position three way
The downside control port of pilot operated directional control valve 15, makes the next work of two-position three way pilot operated directional control valve 15；Two-position three way pilot operated directional control valve
The right side hydraulic fluid port of 15 connects with fuel tank, so that the upside oil circuit control pressure of the second two-position two-way hydraulic control reversal valve 16 is
Zero, under the spring-force driven dual of downside, it is in the next work；The left side of the first shuttle valve 13 and the rotary motor 10 being in high pressure conditions
Left chamber connects, and therefore the first shuttle valve 13 exports hydraulic oil and acts on the downside control oil of the first two-position two-way hydraulic control reversal valve 14
Mouthful so that the next work of the first two-position two-way hydraulic control reversal valve 14.The electric magnet no power of bi-bit bi-pass solenoid directional control valve 19, place
Yu Zuowei works, and cuts off the path of hydraulic accumulator 22 and other executors.The control port of hydraulic control one-way valve 71,72 takes back and turns
The hydraulic oil of operation handle 3 output, it is allowed to hydraulic oil two-way circulates.Above-mentioned each hydraulic control valve keeps during Acceleration of starting
State, as shown in Figure 1.
Owing to controlling the oil pressure oil pressure higher than right side on the left of banked direction control valves 6, therefore banked direction control valves 6 commutates, and drives pump 1 at internal combustion engine
Under the driving of 21, the hydraulic oil of output exports from the left position of banked direction control valves 6 through check valve 4, flows into the left chamber of rotary motor 10；Due to this
Time turntable 12 remain static, and turntable 12 belongs to large inertia system, and therefore rotary motor 10 is also at resting state, this
Time pour in the hydraulic oil in the left chamber of rotary motor 10 rotary motor 10 can not be driven to turn round, and the hydraulic control in left side can only be opened
Check valve 71 flows out；The hydraulic oil flowed out from hydraulic control one-way valve 71 divides two-way, and a road is through 3-position-3-way solenoid directional control valve 18 times
Position and the next of the second two-position two-way hydraulic control reversal valve 16 enter hydraulic accumulator 22, and another road first two-position two-way hydraulic control changes
The next to valve 14 enters hydraulic accumulator 22.Hydraulic oil owing to exporting from hydraulic control one-way valve 71 is divided into two parts, thus can
To reduce system pressure drop, improve the energy that hydraulic accumulator 22 reclaims.
When hydraulic coupling overcomes the inertia of turntable 12, after promoting turntable 12 to start revolution, flow into the flow of rotary motor 10 by
Cumulative add, and the flow flowing into hydraulic accumulator 22 is gradually reduced.Turntable 12 is in acceleration turn state.When turntable 12 reaches volume
Determine rotating speed, drive the flow of pump 1 output completely into rotary motor 10, start accelerator and terminate.
(2) recycling that the recovers energy stage
Owing to accelerating rotary phase, hydraulic accumulator 22 absorbs substantial amounts of energy, and pressure raises；And rotary motor 10
Being complete accelerator, rotating speed tends to be steady, and now the pressure in rotary motor 10 chamber is less than the pressure of boost phase, is i.e. less than
The pressure of hydraulic accumulator 22.Now, under the effect of hydraulic accumulator 22 elevated pressures, the first two-position two-way hydraulic control reversal valve
14 upper work, cut off the connection in loop, left and right；Second shuttle valve 17 exports hydraulic oil and acts on two-position three way pilot operated directional control valve
The next control port of 15, makes the next work of two-position three way pilot operated directional control valve 15, makes oil on the right side of two-position three way pilot operated directional control valve 15
Mouth connects with fuel tank, and acts on the upside control port of the second two-position two-way hydraulic control reversal valve 16, the second two-position two-way hydraulic control
Reversal valve 16 is in the next work under lower lateral spring effect；3-position-3-way solenoid directional control valve 18 remains in that the next work.Liquid
The control port of control check valve 71,72 takes back the hydraulic oil turning operation handle 3 output, it is allowed to hydraulic oil two-way circulates.
Now higher due to the pressure in hydraulic accumulator 22, therefore the pressure oil in hydraulic accumulator 22 is through the two or two
The next bottom entering 3-position-3-way solenoid directional control valve 18 of two-way pilot operated directional control valve 16 through the hydraulic control one-way valve 71,72 in left side
Reversely flow out, enter the left chamber of rotary motor 10, together with the hydraulic oil driving pump 1 to provide, provide bigger for rotary motor 10
Flow, it is ensured that the fast turn-around of turntable 12.Owing to hydraulic accumulator 22 provides the flow required for a part of rotary motor 10,
Therefore reduce the output driving pump 1, reduce the energy expenditure of system.
At turntable 12 by Acceleration of starting to normal operation, it is dependent on the pressure of hydraulic accumulator 22 and rotary motor 10
Power automatically switches, and is not required to manual operation, improves efficiency and the reliability of energy recovery and reuse, and simplifies control stream
Journey.
(3) Brake energy recovery
When, behind position in revolution operation handle 3 times, revolution operation handle 3 cuts off the external output of pioneer pump 2, turns round manipulator
Two guide's output oil ports of handle 3 all communicate with fuel tank.Therefore, banked direction control valves 6 is position in the control next time of both sides guide's oil circuit, cuts
The disconnected passage driving pump 1 and rotary motor 10 chamber, has also cut off the interface channel of rotary motor 10 opposite side and fuel tank simultaneously；The
The pressure of two shuttle valve 17 both sides is zero, and output pressure is also zero；The control port of hydraulic control one-way valve 71,72 connects low pressure oil, reversely
Circulation is prohibited, and can only keep forward circulation as common check valve.
Owing to the second shuttle valve 17 is output as zero, therefore two-position three way pilot operated directional control valve 15 is located under the spring-force driven dual of upside
In upper work, so that the hydraulic oil in hydraulic accumulator 22 acts on the upside of the second two-position two-way hydraulic control reversal valve 16
Control port, makes the second upper work of two-position two-way hydraulic control reversal valve 16, the oil circuit about cut-out.
Owing to turntable 12 belongs to large inertia load, therefore when driving pump 1 to stop as rotary motor 10 fuel feeding, turntable 12 is still
So remain in operation along original direction, make the fluid compression of the motor cavity on the right side of original connected tank, produce the highest pressure,
Hydraulic oil opens the hydraulic control one-way valve 72 on right side, flows out from the forward of hydraulic control one-way valve 72.Owing to the pressure in the right chamber of motor is high, because of
This first shuttle valve 13 exports hydraulic oil and acts on the downside control port of the first two-position two-way hydraulic control reversal valve 14, promotes the one or two
The next work of position two-way pilot operated directional control valve 14, connection left and right oil circuit；Therefore from the hydraulic oil of rotary motor 10 brake chamber output
It is flowed in hydraulic accumulator 22 through the first two-position two-way hydraulic control reversal valve 14 after the hydraulic control one-way valve 72 on right side, thus real
The now recovery to braking energy.
(4) turntable remains static
When the rotating speed of rotary motor 10 level off to zero time, now the pressure of rotary motor 10 brake chamber reduces, and is not enough to gram
Take the pressure in hydraulic accumulator 22；Now the first shuttle valve 13 and the second shuttle valve 17 all export low pressure oil；Now hydraulic accumulator
22 pressure are higher than the pressure of the first shuttle valve 13, and therefore the first two-position two-way hydraulic control reversal valve 14 is located under hydraulic accumulator 22 acts on
In upper work, cut off the path of left and right oil circuit；The pressure of the second shuttle valve 17 output is relatively low, less than two-position three way pilot operated directional control valve
Spring force on the upside of in the of 15, the most under spring force upper work of two-position three way pilot operated directional control valve 15, make hydraulic accumulator 22
Hydraulic oil act on the upside control port of the second two-position two-way hydraulic control reversal valve 16, the second two-position two-way hydraulic control reversal valve 16
Under upper lateral pressure effect, it is in upper work, makes left and right sides oil circuit disconnect；3-position-3-way solenoid directional control valve 18 is in automatically controlled system
Under the effect of system 20, the electric magnet energising of upside, it is in upper work, makes the hydraulic fluid port on right side communicate with fuel tank.
When each hydraulic valve of drive system is in above-mentioned operating mode, now check valve 4 is passed through from oil in the left chamber of rotary motor 10
Case oil suction, is maintained at lower pressure；Right side hydraulic control one-way valve 72 and 3-position-3-way solenoid directional control valve are passed through in the right chamber of rotary motor 10
18 upper communicate with fuel tank, is also maintained at lower pressure；So 10 liang of cavity pressures of rotary motor are equal, can effectively prevent turntable
Reversely rotate after 12 stoppings, it is ensured that the stationarity of turntable 12 operating.
(5) multilevel energy recycle and reuse
When the pressure of hydraulic accumulator 22 is when setting the upper limit of pressure limit, if now turntable 12 carries out Acceleration of starting
Or during the action such as braking, start overflow and braking overflow energy cannot be absorbed by hydraulic accumulator 22, thus cause waste, pin
To this problem, this utility model devises a path, this portion of energy is supplied to by bi-bit bi-pass solenoid directional control valve 19
Other executors or be stored in pressure limit other hydraulic accumulators higher, it is achieved directly utilizing or multistage energy of energy
Amount stores and recycling.
Being when turntable 12 starts to start shown in Fig. 5, the circulation relationship of energy, operation principle is similar to Fig. 2, the most now
Starting overflow energy is not to enter hydraulic accumulator 22, but enters other actuator through bi-bit bi-pass solenoid directional control valve 19
Or in other hydraulic accumulators of higher pressure grade；Brake energy recovery similarly, is referred to Fig. 3 and Fig. 5 and obtains.
Design focal point of the present utility model is: by arranging corresponding hydraulic pressure between rotary motor with hydraulic accumulator
Valve, detects hydraulic pump outlet pressure, the revolution operation output pressure of handle, rotary motor two cavity pressure and hydraulic accumulator
Pressure, and make corresponding reversal valve be in corresponding operating position, between connection rotary motor chamber and hydraulic accumulator not
Co-energy circulation passage so that drive system is not required to install a lot of pressure transducers can realize the comparison of pressure, the completeest
The recycling and reuse of gyroscopic drive system energy in pairs.On the one hand reduce the energy expenditure of turntable drive system, enhance
The stability that drive system is run, on the other hand simplifies control system, improves the reliability of control system.
The above, be only preferred embodiment of the present utility model, not make technical scope of the present utility model
Any restriction, thus every according to technical spirit of the present utility model, above example is made any trickle amendment, equivalent become
Change and modify, all still falling within the range of technical solutions of the utility model.
Claims (1)
1. the drive system that an engineering machinery turntable energy recycles automatically, it is characterised in that: include driving pump, elder generation
Lead pump, revolution operation handle, check valve, relief valve, banked direction control valves, hydraulic control one-way valve, overflow relief valve, repairing check valve, revolution
Motor, decelerator, turntable, the first shuttle valve, the first two-position two-way hydraulic control reversal valve, two-position three way pilot operated directional control valve, the two or two
Two-way pilot operated directional control valve, the second shuttle valve, 3-position-3-way solenoid directional control valve, bi-bit bi-pass solenoid directional control valve, electric-control system, internal combustion
Machine, hydraulic accumulator and overflow valve；
Described rotary motor is connected with the power shaft of decelerator, and the output shaft of decelerator is connected with turntable, drives pump and pioneer pump
It is co-axially mounted with internal combustion engine, drives the inlet port of pump and pioneer pump all to communicate with fuel tank, drive oil-out and the check valve of pump
Entrance communicates, and guide's delivery side of pump is connected with the oil-in of revolution operation handle；Oil-out one tunnel and the relief valve phase of check valve
Even, a road is connected with the oil-in of banked direction control valves；Banked direction control valves oil return opening is directly connected with fuel tank, and the left and right control port of banked direction control valves divides
Not two oil-outs with revolution operation handle are connected；The control of revolution operation handle is by electric control system controls；Revolution manipulator
Two oil-outs of handle divide three tunnels, a road to be connected with the control port of banked direction control valves respectively, and a road is oily with the control of hydraulic control one-way valve
Mouth is connected, and a road is connected with an oil-in of the second shuttle valve；The two-way oil-out of banked direction control valves is symmetrical, each point five, every road
Road, respectively with the entrance of hydraulic control one-way valve, overflow relief valve, the outlet of repairing check valve, rotary motor oil-in and first
Shuttle valve is connected；The control port of hydraulic control one-way valve is connected with the oil-out of revolution operation handle, and oil-out divides three tunnels, the first via and
The outlet of another hydraulic control one-way valve is connected, and the second tunnel is connected with the entrance of two-position three way pilot operated directional control valve, the 3rd tunnel and the one or two
The entrance of position two-way pilot operated directional control valve is connected；The oil-out of overflow relief valve is connected with fuel tank；The oil-in of repairing check valve with
Fuel tank is connected；
The output oil port of described first shuttle valve and the downside control port of the first two-position two-way hydraulic control reversal valve are connected；Described first
The upside control port of two-position two-way hydraulic control reversal valve is connected with the oil-in of hydraulic accumulator；First two-position two-way hydraulic control commutation
The oil-out of valve is connected with the oil-in of hydraulic accumulator；
The upside of described two-position three way pilot operated directional control valve is spring, and the control port of downside is connected with the oil-out of the second shuttle valve；
The upside hydraulic fluid port of two-position three way pilot operated directional control valve is connected with the hydraulic fluid port of hydraulic accumulator, and downside hydraulic fluid port is connected with fuel tank, oil-out
It is connected with the control port on the upside of the second two-position two-way hydraulic control reversal valve；
The downside of described second two-position two-way hydraulic control reversal valve is spring, and oil-in is oily with the upside of 3-position-3-way solenoid directional control valve
Mouth is connected, and oil-out is connected with hydraulic accumulator；The downside hydraulic fluid port of described 3-position-3-way solenoid directional control valve is connected with fuel tank, three
The power-on and power-off Magnet of three-way solenoid valve is by electric control system controls；
Oil-in one tunnel of described hydraulic accumulator is connected with overflow valve, a road and the outlet of the first two-position two-way hydraulic control reversal valve
Being connected, a road is connected with the upside control port of the first two-position two-way hydraulic control reversal valve, and a road is changed with the second two-position two-way hydraulic control
Being connected to the outlet of valve, a road is connected with the oil-in of two-position three way pilot operated directional control valve, a road and bi-bit bi-pass solenoid directional control valve
Oil-in be connected；The electric magnet of described bi-bit bi-pass solenoid directional control valve is by ECU control；
Described internal combustion engine, 3-position-3-way solenoid directional control valve, bi-bit bi-pass solenoid directional control valve, revolution operation handle control signal equal
By electric control system controls.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483640.7U CN205876871U (en) | 2016-05-25 | 2016-05-25 | Automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620483640.7U CN205876871U (en) | 2016-05-25 | 2016-05-25 | Automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840598A (en) * | 2016-05-25 | 2016-08-10 | 华侨大学 | Driving system for automatic recovering and recycling of energy of rotary table of engineering machine |
| CN108729493A (en) * | 2018-06-07 | 2018-11-02 | 马鞍山松鹤信息科技有限公司 | A kind of excavator of steady accumulation of energy |
| CN108953309A (en) * | 2018-07-27 | 2018-12-07 | 徐州工业职业技术学院 | A kind of energy recovery and reuse hydraulic system |
| CN109973452A (en) * | 2017-12-28 | 2019-07-05 | 中国铁建高新装备股份有限公司 | A kind of hydraulic walking system plugging control valve |
| CN114198369A (en) * | 2021-12-21 | 2022-03-18 | 中联恒通机械有限公司 | Control method and control system for swing mechanism |
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2016
- 2016-05-25 CN CN201620483640.7U patent/CN205876871U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840598A (en) * | 2016-05-25 | 2016-08-10 | 华侨大学 | Driving system for automatic recovering and recycling of energy of rotary table of engineering machine |
| CN109973452A (en) * | 2017-12-28 | 2019-07-05 | 中国铁建高新装备股份有限公司 | A kind of hydraulic walking system plugging control valve |
| CN109973452B (en) * | 2017-12-28 | 2024-01-23 | 中国铁建高新装备股份有限公司 | Reverse braking control valve for hydraulic traveling system |
| CN108729493A (en) * | 2018-06-07 | 2018-11-02 | 马鞍山松鹤信息科技有限公司 | A kind of excavator of steady accumulation of energy |
| CN108953309A (en) * | 2018-07-27 | 2018-12-07 | 徐州工业职业技术学院 | A kind of energy recovery and reuse hydraulic system |
| CN114198369A (en) * | 2021-12-21 | 2022-03-18 | 中联恒通机械有限公司 | Control method and control system for swing mechanism |
| CN114198369B (en) * | 2021-12-21 | 2024-02-27 | 中联恒通机械有限公司 | Control method and control system for slewing mechanism |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20170825 |
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| AV01 | Patent right actively abandoned |