CN106640799A - Energy-saving type loading system of pure electric compression garbage truck - Google Patents
Energy-saving type loading system of pure electric compression garbage truck Download PDFInfo
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- CN106640799A CN106640799A CN201710083898.7A CN201710083898A CN106640799A CN 106640799 A CN106640799 A CN 106640799A CN 201710083898 A CN201710083898 A CN 201710083898A CN 106640799 A CN106640799 A CN 106640799A
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- way
- valve
- directional control
- oil cylinder
- solenoid directional
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
Abstract
The invention provides an energy-saving type loading system of a pure electric compression garbage truck. The energy-saving type loading system comprises a hydraulic pump, a barrel overturning oil cylinder, a hoisting oil cylinder, a scraping plate oil cylinder, a slide plate oil cylinder and a push plate oil cylinder; the system further comprises a power unit I, a closed transmission unit II, a push plate system III and a main controller; a closed system is adopted so that the capacity of an oil tank can be greatly reduced and the structure of the system is simplified; the rotary speed of a motor is set according to the working condition of an executing device; when loading equipment does not work, the motor stops rotating, so that the working efficiency is improved, and empty flow and throttling lost is cancelled; the motor generates power under a load condition and the gravitational potential energy of load can be converted into electric energy; and meanwhile, under a bidirectional compression working condition of garbage, overflowing energy in a compression process can be recycled, so that the consumption of energy of batteries is greatly reduced, the endurance mileage of the whole truck is improved and the service lives of the batteries are prolonged.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, and in particular to a kind of energy-saving upper dress system of pure electric compression type garbage truck.
Background technology
The special sanitation vehicle that rear-loading compression type garbage truck is a kind of refuse collection with transhipment, with rubbish freight volume it is big and
The advantage for spilling and causing secondary pollution on the way can be avoided.Its structure mainly includes：Two class automobile chassises, sealing dustbin, push away
The hydraulic pressure and electrical system of trigger structure, sizer, scraper plate sled mechanism, tilting device and correlation.Specific workflow is：Incline
Focusing device digs dustbin, and rubbish enters bucket；Turn on scraper plate；Slide plate declines in place with scraper plate；Scrape board reversal to dig in rubbish；
Slide plate rises with scraper plate, and rubbish is pressed into case.Cycle operation is filled up to dustbin, and rubbish is transported to dumping ground, filler
Device is integrally flipped up in the presence of elevating ram, and push pedal oil cylinder stretches out promotion push pedal and is moved rearwards by, and FCL rubbish is released
Discharging outside car.
With the continuous reinforcement of people's environmental consciousness, various places government increasingly improves to the requirement discharged, and pure electric automobile
There is zero-emission, low noise and high efficiency, therefore increasingly paid attention to by country and enterprise, it is various pure electronic riding
Car is introduced to the market in a large number.At present, the application of electric automobile also gradually penetrates into the special-purpose vehicle such as environmental sanitation, postal service, logistics field,
Wherein, pure electric compression type garbage truck has gradually been introduced to the market by main frame producer at present.And private host factory exploitation at present is pure
The basic ideas of electric compression type garbage truck are that traditional upper dress hydraulic system is configured on pure electric vehicle chassis, and system principle is such as
Shown in Fig. 1, the structure is that traditional constant displacement pump opens center multi-way valve system, and multichannel is led in a piece of three six of each group oil cylinder connection
Valve, controls direction and the speed of each group oil cylinder, and the program can meet the standby job requirement of upper installing, but energy consumption is higher, no
Beneficial to the effectively utilizes of the energy content of battery, concrete manifestation is as follows：
（1）During rubbish is loaded, needs will manually change dustbin to compression type garbage truck, and this process is short then several seconds,
Long then need a few minutes, this period of time motor-driven hydraulic pumps is not done work, therefore the energy of this period is all wasted；
（2）It is multi executors system to install on this standby, and the commutation and speed governing per group oil cylinder is realized by multichannel valve group, oil
When cylinder speed governing, the throttling of valve port loss is larger, particularly low cruise when；
（3）Turn over a barrel oil cylinder, scraper plate oil cylinder, skateboard tank and elevating ram and there is negative load behavior in a large number in the course of the work, it is many
Road valve control system be using valve port liquid resistance or balanced valve providing back pressure, make oil cylinder operate steadily, therefore under these operating modes
The potential energy of load all loss is converted to heat and consumes in valve port.
（4）Traditional compression mechanism is that the function of bi-directional compression is realized using counterbalance valve in Fig. 1, therefore in counterbalance valve
There is overflow valve loss in overflow valve；
The above aspect can all be unfavorable for the effectively utilizes of electric energy in electrokinetic cell, so as to affect the course continuation mileage and electricity of car load
The pond life-span.
The content of the invention
To solve the above problems, the invention provides a kind of energy-saving upper dress system of pure electric compression type garbage truck, the party
Case can reduce empty stream, throttling loss in original system, and reclaim overflow energy when loading gravitional force and bi-directional compression, because
This can improve the effective rate of utilization of battery power.
The present invention solves the scheme that adopted of its technical problem：
The energy-saving upper dress system of pure electric compression type garbage truck, including hydraulic pump, turn over a barrel oil cylinder, elevating ram, scraper plate oil cylinder, cunning
Leaf fat cylinder, push pedal oil cylinder, it is characterised in that system also includes power unit I, closed-type cylindrical gearing unit II, push pedal system III, master
Controller；
The power unit I includes buncher, electric machine controller, electrokinetic cell, and electrokinetic cell is directly connected to electric machine controller
Dc bus end, electric machine controller clutch end connection buncher；
The closed-type cylindrical gearing unit II includes two-way quantitative pump/motor, the first 2/2-way solenoid directional control valve ~ the 8th 2/2-way
Solenoid directional control valve, the first hydraulic control one-way valve V, the second hydraulic control one-way valve V, the first safety valve V, the second safety valve V, the 3rd pressure are passed
Sensor, the first proximity switch J ~ the 8th proximity switch J, the import and export of two-way quantitative pump/motor connect respectively turns over a barrel oil cylinder, lifting
Oil cylinder, scraper plate oil cylinder, two chambers of each group oil cylinder of skateboard tank, in the aforementioned chamber of each group oil cylinder two and two-way quantitative pump/motor
Import and export between separated with a 2/2-way solenoid directional control valve respectively；Signature per group oil cylinder piston rod in impulse stroke most
Short and most long position is respectively equipped with proximity switch；The outlet of two safety valves is connected, and two entrances are connected to two-way fixed
The entrance and exit of amount pump/motor；The positive entrance of two hydraulic control one-way valves is connected, and two outlets are connected to two-way quantitative
The entrance and exit of pump/motor, each hydraulic control mouth is connected to the outlet of docking hydraulically-controlled one-way valve, i.e., relative hydraulic control one-way valve
Outlet；Safe valve outlet port and hydraulic control one-way valve forward direction entrance are joined directly together；
Push pedal system III includes the 2/2-way solenoid directional control valve of the 9th 2/2-way solenoid directional control valve ~ the 12 and the
14 2/2-way solenoid directional control valves, three position four-way directional control valve, check valve, first pressure sensor, second pressure sensor, height
Pressure accumulator, low pressure accumulator, two outlets of three position four-way directional control valve connect respectively two chambers of push pedal oil cylinder, push pedal oil cylinder
Loculus and it is connected with fuel tank by check valve, by the 12nd 2/2-way electricity between the big chamber of push pedal oil cylinder and high pressure accumulator
Magnetic reversal valve passes through, and high pressure accumulator and low pressure accumulator are by the 10th two electric change valves connection, low pressure accumulation of energy
The outlet of device separates two parallel branch, and one article by the 14th 2/2-way solenoid directional control valve and the tenth 2/2-way of series connection
Solenoid directional control valve is connected with the entrance of two-way quantitative pump/motor, another article of branch by the 9th 2/2-way solenoid directional control valve with
The tie point connection of safe valve outlet port and hydraulic control one-way valve forward direction entrance；The survey of first pressure sensor and second pressure sensor
Pressure mouth is respectively provided at high pressure accumulator outlet and the outlet of the 9th 2/2-way solenoid directional control valve.
Buncher in power unit I is mechanically connected with two-way quantitative pump/motor, and electric machine controller leads to master controller
Cross CAN communication；
All of 2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve, the electromagnet of three-position four-way electromagnetic directional valve connect
The output end of master controller is connect, the signal output part of two pressure sensors connects the signals collecting mouth of master controller, and eight connect
The signal output port of nearly switch connects the signals collecting mouth of master controller.
Further scheme is that described buncher can be AC induction motor, permagnetic synchronous motor or switch magnetic
Resistance motor；
Further scheme is：All of 2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve, 3-position 4-way electromagnetism
Reversal valve is using two-way plug-in valve as main valve, version of the Solenoid ball valve as pilot valve；
System is filled on pure electric compression type garbage truck is energy-saving, two hydraulic control one-way valves are used as Fill valve；Using low pressure accumulation of energy
Device is used as the chamber flow matches element of cylinder with differential effect two；The unit that buncher is constituted with controller has four quadrant running function, i.e.
Can rotate forward can also invert and not only can be with electronic but also can be with generator operation under every kind of steering；Described two-way quantitative pump/motor,
There is the function of bidirectional rotation, and pump condition had both been may operate under each steering, motor operating conditions are may operate in again；
Contain control program in master controller, signal value according to two pressure sensors, the state of eight proximity switches are controlling
Buncher processed is turned to, rotating speed, the break-make of reversal valve electromagnet current.
Beneficial effects of the present invention：Tankage can be greatly reduced using closed system, simplied system structure, according to holding
The operating mode of row device setting motor speed, or even upper installing is standby do not work when, motor stalling so improves operating efficiency, takes
Disappeared empty stream and the loss that throttles, and load gravitional force can be converted into electric energy by the electric power generation under negative load behavior, meanwhile,
Under rubbish bi-directional compression operating mode, overflow energy during compression can be reclaimed, so greatly reduce the consumption of the energy content of battery, be carried
The high course continuation mileage of car load and extend life-span of battery.
Description of the drawings
Fig. 1 compression type garbage trucks traditionally install standby hydraulic scheme；
Fig. 2 embodiment of the present invention systematic schematic diagrams；
1- bunchers in Fig. 2,2- electric machine controllers, 3- electrokinetic cells, the quantitative pump/motor of 4- two-way pumps, 5- high pressure accumulators,
6- low pressure accumulators, 7- push pedal oil cylinders, 8- check valves, 9- first pressure sensors, 10- second pressure sensors, 11- the 3rd are pressed
Force snesor, 12- master controllers, 13- turn over a barrel oil cylinder, 14- elevating rams, 15- scraper plate oil cylinders, 16- skateboard tanks, VD1- first
2/2-way reversal valve ~ 2/2-way the solenoid directional control valves of VD9- the 9th, VD10- two-bit triplet solenoid directional control valves, VD11- the 11st
2/2-way solenoid directional control valve, the 2/2-way reversal valves of VD12- the 12nd, VD13- three-position four-way electromagnetic directional valves VD14- the tenth
Four 2/2-way solenoid directional control valves, the proximity switches of the first proximity switches of J1- ~ J8- the 8th, the hydraulic control one-way valves of V1- first, V2-
Two hydraulic control one-way valves, the safety valves of V3- first, the safety valves of V4- second；
I- power units, II- closed-type cylindrical gearing units, III- push pedal systems.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：
As shown in Fig. 2
The energy-saving upper dress system of pure electric compression type garbage truck, including hydraulic pump 4, turn over barrel oil cylinder 13, elevating ram 14, scrape leaf fat
Cylinder 15, skateboard tank 16, push pedal oil cylinder 7, it is characterised in that system also includes power unit I, closed-type cylindrical gearing unit II, push pedal
System III, master controller 12；
The power unit I includes buncher 1, electric machine controller 2, electrokinetic cell 3, and electrokinetic cell 3 is directly connected to motor control
The dc bus end of device processed 2, the clutch end of electric machine controller 2 connection buncher 1；
The closed-type cylindrical gearing unit II includes two-way quantitative pump/motor 4, the first 2/2-way solenoid directional control valve VD1 ~ 8 two
Two electric change valve VD8, the first hydraulic control one-way valve V1, the second hydraulic control one-way valve V2, the first safety valve V3, the second safety valve
V4, the 3rd pressure sensor 11, the first proximity switch J1 ~ the 8th proximity switch J8, the import and export point of two-way quantitative pump/motor 4
Barrel oil cylinder 13, elevating ram 14, scraper plate oil cylinder 15, two chambers of each group oil cylinder of skateboard tank 16 Lian Jie not be turned over, aforementioned each
Separated with a 2/2-way solenoid directional control valve respectively between the import and export of the chamber of group oil cylinder two and two-way quantitative pump/motor 4；Signature
Proximity switch is respectively equipped with per group oil cylinder piston rod in the most short and most long position of impulse stroke；The outlet phase of two safety valves
Even, two entrances are connected to the entrance and exit of two-way quantitative pump/motor 4；The positive entrance phase of two hydraulic control one-way valves
Even, two export the entrance and exit for being connected to two-way quantitative pump/motor 4, and each hydraulic control mouth is connected to docking hydraulic pressure list
To the outlet of valve；Safe valve outlet port and hydraulic control one-way valve forward direction entrance are joined directly together；
Push pedal system III includes the 9th 2/2-way solenoid directional control valve VD9 ~ the 12nd 2/2-way solenoid directional control valve VD12
And the 14th 2/2-way solenoid directional control valve VD14, three position four-way directional control valve VD13, check valve 8, first pressure sensor 9,
Second pressure sensor 10, high pressure accumulator 5, low pressure accumulator 6, two outlets of three position four-way directional control valve VD13 connect respectively
Two chambers of push pedal oil cylinder 7, the loculus of push pedal oil cylinder 7 and are connected by check valve 8 with fuel tank, the big chamber of push pedal oil cylinder 7 and high pressure
Passed through by the 12nd 2/2-way solenoid directional control valve VD12 between accumulator 5, high pressure accumulator 5 and low pressure accumulator 6 pass through
10th two electric change valve VD11 connection, the outlet of low pressure accumulator 6 separates two parallel branch, and one by string
14th 2/2-way solenoid directional control valve VD14 and the tenth 2/2-way solenoid directional control valve VD10 and the two-way quantitative pump/motor of connection
4 entrance connection, another article of branch is passing through the 9th 2/2-way solenoid directional control valve VD9 with safe valve outlet port and hydraulic control one-way valve just
Connect to the tie point of entrance；The pressure tap of first pressure sensor 9 and second pressure sensor 10 is respectively provided at high-voltage energy-storage
Device 5 exports the outlet with the 9th 2/2-way solenoid directional control valve VD9.
Buncher 1 in power unit I is mechanically connected with two-way quantitative pump/motor 4, electric machine controller 2 and main control
Device 12 is communicated by CAN；
All of 2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve VD10, three-position four-way electromagnetic directional valve VD13
Electromagnet connects the output end of master controller 12, and the signal of the signal output part connection master controller 12 of two pressure sensors is adopted
Ji Kou, the signal output port of eight proximity switches connects the signals collecting mouth of master controller 12.Wherein, described buncher
1 can be AC induction motor, permagnetic synchronous motor or switched reluctance machines；
All of 2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve VD10, three-position four-way electromagnetic directional valve VD13 are equal
Using two-way plug-in valve as main valve, version of the Solenoid ball valve as pilot valve；
The energy-saving upper dress system specific work process of pure electric compression type garbage truck is described as follows：
System electrification, before executing agency's action, master controller 12 controls the 9th 2/2-way solenoid directional control valve VD9 and the 14th liang
Two electric change valve VD14 dead electricity of position are closed, two-bit triplet solenoid directional control valve VD10, the 10th two electric change valve,
12nd 2/2-way solenoid directional control valve VD12 must be conducted, and detect the pressure value P of second pressure sensor 10, when pressure P it is little
In setting value Pmin, then master controller 12 sends the rotating speed of target of buncher 1 and opens by CAN to electric machine controller 2
Dynamic instruction, two-way quantitative pump/motor 4 is to topping up in low pressure accumulator 6, when pressure reaches setting value Pmax, the mesh of buncher 1
Mark rotating speed is 0, electric motor starting instruction failure, and controls the 9th two two barrels of solenoid directional control valve VD9 and obtain electric, and two-bit triplet electromagnetism is changed
Close to valve VD10, the 10th two electric change valves, the 12nd 2/2-way solenoid directional control valve VD12 dead electricity, complete right
Low pressure accumulator 6 fills energy
When barrel 13 action of oil cylinder is turned over, the first 2/2-way solenoid directional control valve VD1 and the 5th 2/2-way solenoid directional control valve VD5 is obtained
Conduct, the second 2/2-way solenoid directional control valve VD2 ~ the 4th 2/2-way solenoid directional control valve VD4, the 6th 2/2-way electromagnetism is changed
Close to valve VD6 ~ the 8th 2/2-way solenoid directional control valve VD8 dead electricity, master controller 12 sends buncher 1 by CAN
Rotating speed of target and steering.Such as, turn over barrel oil cylinder 13 and stretch out lifting dustbin, two-way quantitative pump/motor 4 exports fluid to turning over bucket
The big chamber of oil cylinder 13, due to loculus oil return, the flow-rate ratio oil-feed of loculus oil return is little, therefore the tapping of low pressure accumulator 6 and loculus interflow
To the fuel feeding of two-way quantitative pump/motor 4；When turning over the retraction of barrel oil cylinder 13, buncher 1 is turned to and changed, now oil cylinder loculus feed liquor, greatly
Liquid is returned in chamber, is returned flow quantity and is more than the necessary flow of two-way quantitative pump/motor 4, and redundance is stored into accumulator, therefore accumulator
Flow matches can be played a part of.
When 14 action of elevating ram, the second 2/2-way solenoid directional control valve VD2 and the 6th 2/2-way solenoid directional control valve
VD6 must be conducted, the first 2/2-way solenoid directional control valve VD1, the 3rd 2/2-way solenoid directional control valve VD3 ~ the 5th 2/2-way
Solenoid directional control valve VD5, the 7th 2/2-way solenoid directional control valve VD7 ~ the 8th 2/2-way solenoid directional control valve VD8 dead electricity is closed, oil
It is similar with the action of barrel oil cylinder 13 is turned over when cylinder 14 stretches out, compression mechanism decentralization during retraction, now the gravity of compression mechanism causes two-way
Quantitative pump/motor 4 is operated in motor operating conditions, and motor is in generating state, so gravitional force can be converted into power storage
In electrokinetic cell.
When scraper plate 15 action of oil cylinder, its course of work is similar with elevating ram.
When 16 action of skateboard tank, the 4th 2/2-way solenoid directional control valve VD4, the 8th 2/2-way solenoid directional control valve
VD8 must be conducted, the first 2/2-way solenoid directional control valve VD1 ~ the 3rd 2/2-way solenoid directional control valve VD3, the 5th 2/2-way
Solenoid directional control valve VD5 ~ the 7th 2/2-way solenoid directional control valve VD7 dead electricity is closed, when skateboard tank is retracted, when the 3rd pressure sensing
When 11 measuring pressures of device are less than setting value Ps, the 12nd 2/2-way solenoid directional control valve VD12 dead electricity is closed, now two-way quantitative
The full work for being used for skateboard tank 16 and push pedal oil cylinder 7 of output of pump/motor 4, all one's effort compressed garbage sets when pressure is more than or equal to
During definite value Ps, then the 12nd 2/2-way solenoid directional control valve VD12 must be conducted, and make push pedal oil cylinder 7 continue to retract, but by one
Partial pressure is transferred to high pressure accumulator 5, completes rubbish loading process, retracts in place when slide plate oil, 16, i.e. J7 proximity switches letter
Number be 1, motor stalling, the 12nd 2/2-way solenoid directional control valve VD12 dead electricity close, the 10th two electric change valves
VD11 must be conducted, and by the pressure transmission of high pressure accumulator 5 to low pressure accumulator 6, and detect the pressure of first pressure sensor 9
Force value, when pressure is less than P0, then illustrates that high pressure accumulator 5 reaches pressure balance with low pressure accumulator 6, controls the 10th two
Electric change valve VD11 dead electricity is closed.
When garbage truck is in dumping ground, detection second pressure sensor 10, when pressure is more than Pm, wherein Pm and Pmin is two
Individual different amount, Pm>Pmin, when the pressure of low pressure accumulator is more than Pm, then accumulator tapping stand-by motor drives hydraulic pump, and
When the pressure of low pressure accumulator is less than Pmin, then accumulator stops tapping, and hydraulic pump is operated alone by motor. then control two
Three-way solenoid valve VD10 dead electricity is in right valve position, and the 14th 2/2-way solenoid directional control valve magnetic valve VD14 must be conducted,
The control buncher 1 of master controller 2 runs, the first 2/2-way solenoid directional control valve VD1 ~ the 8th 2/2-way solenoid directional control valve
VD8 dead electricity, control the left side electromagnet of three-position four-way electromagnetic directional valve 13 obtain it is electric make valve be in left position so as to push pedal oil cylinder 7
Big chamber output pressure, the energy auxiliary governor motor in such low pressure accumulator 6 does work to two-way quantitative pump/motor 4, makes to push away
Leaf fat cylinder 7 stretches out;And the pressure value of second pressure sensor 10 be less than setting value Pmin when, then control two-bit triplet electromagnetic switch
Valve VD10 must be conducted, and the 14th 2/2-way solenoid directional control valve VD14 dead electricity is closed,, now due in low pressure accumulator 6
Fluid is discharged, then individually two-way quantitative pump/motor 4 is done work by buncher, completes refuse-unloading process.
When executing agency is failure to actuate, buncher 1 is out of service, can so avoid the empty stream loss of original system.
Claims (4)
1. a kind of energy-saving upper dress system of pure electric compression type garbage truck, including hydraulic pump（4）, turn over a barrel oil cylinder（13）, lifting oil
Cylinder（14）, scraper plate oil cylinder（15）, skateboard tank（16）, push pedal oil cylinder（7）, it is characterised in that system also includes power unit
（I）, closed-type cylindrical gearing unit（II）, push pedal system（III）, master controller（12）；
The power unit（I）Including buncher（1）, electric machine controller（2）, electrokinetic cell（3）, electrokinetic cell（3）Directly
Connection electric machine controller（2）Dc bus end, electric machine controller（2）Clutch end connects buncher（1）；
The closed-type cylindrical gearing unit（II）Including two-way quantitative pump/motor（4）, the first 2/2-way solenoid directional control valve（VD1）~ the
Eight 2/2-way solenoid directional control valves（VD8）, the first hydraulic control one-way valve（V1）, the second hydraulic control one-way valve（V2）, the first safety valve
（V3）, the second safety valve（V4）, the 3rd pressure sensor（11）, the first proximity switch（J1）~ the eight proximity switch（J8）, it is two-way
Quantitative pump/motor（4）Import and export connect turn over a barrel oil cylinder respectively（13）, elevating ram（14）, scraper plate oil cylinder（15）, skateboard tank
（16）Two chambers of each group oil cylinder, in the aforementioned chamber of each group oil cylinder two and two-way quantitative pump/motor（4）Import and export between respectively
Separated with a 2/2-way solenoid directional control valve；It is aforementioned to divide in the most short and most long position of impulse stroke per group oil cylinder piston rod
Proximity switch is not provided with it；The outlet of two safety valves is connected, and two entrances are connected to two-way quantitative pump/motor（4）Enter
Mouth and outlet；The positive entrance of two hydraulic control one-way valves is connected, and two outlets are connected to two-way quantitative pump/motor（4）'s
Entrance and exit, each hydraulic control mouth is connected to the outlet of docking hydraulically-controlled one-way valve；Safe valve outlet port and hydraulic control one-way valve forward direction enter
Mouth is joined directly together；
The push pedal system（III）Including the 9th 2/2-way solenoid directional control valve（VD9）~ the ten two 2/2-way solenoid directional control valve
（VD12）And the 14th 2/2-way solenoid directional control valve（VD14）, three position four-way directional control valve（VD13）, check valve（8）, first
Pressure sensor（9）, second pressure sensor（10）, high pressure accumulator（5）, low pressure accumulator（6）, three position four-way directional control valve
（VD13）Two outlet respectively connect push pedal oil cylinder（7）Two chambers, push pedal oil cylinder（7）Loculus and by check valve（8）With
Fuel tank connects, push pedal oil cylinder（7）Big chamber and high pressure accumulator（5）Between pass through the 12nd 2/2-way solenoid directional control valve
（VD12）Pass through, high pressure accumulator（5）And low pressure accumulator（6）By the 10th two electric change valves（VD11）Even
Connect, low pressure accumulator（6）Outlet separate two parallel branch, one article of the 14th 2/2-way solenoid directional control valve by series connection
（VD14）With the tenth 2/2-way solenoid directional control valve（VD10）With two-way quantitative pump/motor（4）Entrance connection, another branch
By the 9th 2/2-way solenoid directional control valve（VD9）It is connected with the tie point of safe valve outlet port and hydraulic control one-way valve forward direction entrance；
First pressure sensor（9）With second pressure sensor（10）Pressure tap be respectively provided at high pressure accumulator（5）Outlet and the 9th
2/2-way solenoid directional control valve（VD9）Outlet.
2. power unit（I）In buncher（1）With two-way quantitative pump/motor（4）It is mechanically connected, electric machine controller（2）With
Master controller（12）Communicated by CAN；
All of 2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve（VD10）, three-position four-way electromagnetic directional valve
（VD13）Electromagnet connection master controller（12）Output end, the signal output part connection master controller of two pressure sensors
（12）Signals collecting mouth, the signal output port connection master controller of eight proximity switches（12）Signals collecting mouth.
3. a kind of energy-saving upper dress system of pure electric compression type garbage truck according to claim 1, it is characterised in that speed governing
Motor（1）It is AC induction motor, permagnetic synchronous motor or switched reluctance machines.
4. the energy-saving upper dress system of a kind of pure electric compression type garbage truck according to claim 1, it is characterised in that all
2/2-way solenoid directional control valve and two-bit triplet solenoid directional control valve（VD10）, three-position four-way electromagnetic directional valve（VD13）Adopt
Two-way plug-in valve is used as main valve, version of the Solenoid ball valve as pilot valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083898.7A CN106640799B (en) | 2017-02-16 | 2017-02-16 | A kind of energy-saving upper dress system of pure electric compression type garbage truck |
| CN201810193528.3A CN108533544B (en) | 2017-02-16 | 2017-02-16 | Energy-saving loading system of pure electric compression type garbage truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083898.7A CN106640799B (en) | 2017-02-16 | 2017-02-16 | A kind of energy-saving upper dress system of pure electric compression type garbage truck |
Related Child Applications (1)
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| CN110497962A (en) * | 2019-07-18 | 2019-11-26 | 上海振华重工(集团)股份有限公司 | A kind of servo integrated electric hydraulic steering system of straddle carrier volume and its control method |
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| CN109958674A (en) * | 2017-12-25 | 2019-07-02 | 陕西汽车集团有限责任公司 | Compression type garbage truck shoveling back pressure automatic compensation controller and its method |
| CN109958674B (en) * | 2017-12-25 | 2020-12-29 | 陕西汽车集团有限责任公司 | Automatic compensation control device and method for back pressure of push shovel of compression type garbage truck |
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| CN110497962A (en) * | 2019-07-18 | 2019-11-26 | 上海振华重工(集团)股份有限公司 | A kind of servo integrated electric hydraulic steering system of straddle carrier volume and its control method |
| CN110497962B (en) * | 2019-07-18 | 2023-11-24 | 上海振华重工(集团)股份有限公司 | Volume servo integrated electro-hydraulic steering system of straddle carrier and control method thereof |
| CN113845032A (en) * | 2021-11-30 | 2021-12-28 | 杭叉集团股份有限公司 | Energy-saving hydraulic system for telescopic arm of electric front crane |
Also Published As
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|---|---|
| CN106640799B (en) | 2018-03-16 |
| CN108533544B (en) | 2020-05-12 |
| CN108533544A (en) | 2018-09-14 |
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