CN106678130B - Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck - Google Patents
Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck Download PDFInfo
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- CN106678130B CN106678130B CN201710084272.8A CN201710084272A CN106678130B CN 106678130 B CN106678130 B CN 106678130B CN 201710084272 A CN201710084272 A CN 201710084272A CN 106678130 B CN106678130 B CN 106678130B
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- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
-
- 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
- F15B21/087—Control strategy, e.g. with block diagram
-
- 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
- F15B21/14—Energy-recuperation means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Refuse-Collection Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck, including auxiliary hydraulic pump, turn over a barrel oil cylinder, elevating ram, scraper plate oil cylinder, skateboard tank, push pedal oil cylinder, hydraulic oil container, it is characterized in that, system also includes power unit I, auxiliary pumping source II, closed-type cylindrical gearing unit III, push pedal system IV, master controller, overall oil circuit can greatly reduce tankage, simplied system structure using closed system；Motor speed is set according to the operating mode of each actuator, can reach when upper installing is not for working, the effect of motor stalling, both improve operating efficiency, turn avoid empty stream and throttling is lost；Generated electricity in negative load behavior by the conversion motor of two-way quantitative pump/motor, load gravitional force can be converted into electric energy, so greatly reduce the consumption of the energy content of battery, improve the course continuation mileage of vehicle and extend the life-span of battery.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, and in particular to standby enclosed change is installed on a kind of pure electric compression type garbage truck and is turned
Fast pump control hydraulic system.
Background technology
The special sanitation vehicle that rear-loading compression type garbage truck is a kind of refuse collection with transhipment, have rubbish freight volume big and
The advantages of can avoiding spilling on the way and causing secondary pollution.Its structure mainly includes：Two class automobile chassises, sealing dustbin, push away
Trigger structure, sizer, scraper plate sled mechanism, the hydraulic pressure and electrical system of tilting device and correlation.Specific workflow is：Incline
Focusing device digs dustbin, and rubbish enters bucket；Turned on scraper plate；Slide plate declines in place with scraper plate；Board reversal is scraped to dig rubbish；
Slide plate rises with scraper plate, and rubbish is pressed into case.Until dustbin is filled, rubbish is transported to dumping ground, filler for cycle operation
Device is integrally flipped up in the presence of elevating ram, and push pedal oil cylinder, which stretches out, promotes push pedal to be moved rearwards, and FCL rubbish is released
Discharging outside car.
With the continuous reinforcement of people's environmental consciousness, requirement of the various regions government to discharge increasingly improves, 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 largely introduced to the market.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, each logical multichannel of a piece of three six of group oil cylinder connection
Valve, direction and the speed of each group oil cylinder are controlled, the program can meet to install standby job requirement, but energy consumption is higher, no
It is as follows beneficial to effective utilization of the energy content of battery, specific manifestation：
For 1 compression type garbage truck, it is necessary to will manually change dustbin during rubbish is loaded, this process is short then several
Second, long then need a few minutes, this period of time motor-driven hydraulic pumps is not done work, and whole fluid bypass oil return by banked direction control valves
Case, therefore the energy of this period all wastes；
2 installing is standby on this is multi executors system, and the commutation and speed governing per group oil cylinder are realized by multichannel valve group,
When oil cylinder speed governing, the throttling loss of valve port is larger, when particularly low speed is run；
3 turn over a barrel oil cylinder, scraper plate oil cylinder, skateboard tank and elevating ram has largely negative load behavior in the course of the work,
Multichannel valve control system is to provide back pressure using the liquid resistance or balanced valve of valve port, oil cylinder is operated steadily, therefore these operating modes
Under load potential energy all loss be converted to heat in valve port and consume.
Effective utilization of electric energy in electrokinetic cell can be all unfavorable in terms of the above, so as to influence the course continuation mileage of vehicle
And battery life.
The content of the invention
To solve the above problems, the invention provides standby enclosed variable speed pump is installed on a kind of pure electric compression type garbage truck
Control system, the sky that the program can reduce in original system flows, throttling loss, and reclaims load gravitional force, therefore can improve
The effective rate of utilization of battery power.
Scheme is used by the present invention solves its technical problem：
Install standby enclosed variable speed pump control hydraulic system on pure electric compression type garbage truck, including auxiliary hydraulic pump, turn over bucket
Oil cylinder, elevating ram, scraper plate oil cylinder, skateboard tank, push pedal oil cylinder, hydraulic oil container, it is characterised in that system also includes power list
First I, auxiliary pumping source II, closed-type cylindrical gearing unit III, push pedal system IV, master controller；
The power unit I includes variable speed electric motors, particularly, electric machine controller, electrokinetic cell, constant-seed motor, and electrokinetic cell passes through electricity
Machine controller connects constant-seed motor and variable speed electric motors, particularly respectively；
The auxiliary pumping source II includes auxiliary hydraulic pump, electromagnetic relief valve, the 9th 2/2-way solenoid directional control valve, the first pressure
Force snesor, two branches of auxiliary hydraulic pressure pump discharge, electromagnetic relief valve and the 9th 2/2-way solenoid directional control valve is connected respectively, the
The pressure tap of one pressure sensor is connected to the outlet of the 9th 2/2-way solenoid directional control valve；
The closed-type cylindrical gearing unit III include two-way quantitative pump/motor, accumulator, the first 2/2-way solenoid directional control valve ~
8th 2/2-way solenoid directional control valve, the first hydraulic control one-way valve, the second hydraulic control one-way valve, the first safety valve, the second safety valve,
The proximity switch of two pressure sensors, the first proximity switch ~ the 8th, the inlet and outlet of two-way quantitative pump/motor connect respectively turns over bucket oil
Cylinder, elevating ram, scraper plate oil cylinder, two chambers of each group oil cylinder of skateboard tank, and each chamber of group oil cylinder two and two-way quantitative pump/
Respectively separated between the inlet and outlet of motor with a 2/2-way solenoid directional control valve；Per group oil cylinder piston rod in impulse stroke
Most short and most long position is respectively provided with proximity switch；The outlet of two safety valves is connected, two safety valves two
Individual entrance is connected to the entrance and exit of two-way quantitative pump/motor；The positive entrance of two hydraulic control one-way valves is connected,
Two hydraulic control one-way valves two export the entrance and exit for being connected to two-way quantitative pump/motor, and each hydraulic control mouth connects
It is connected to the outlet of the outlet, the i.e. hydraulic control one-way valve on opposite of docking hydraulically-controlled one-way valve；And the outlet of two safety valves, two hydraulic controls
The entrance of the positive entrance and accumulator of check valve is joined directly together；
The push pedal system IV include counterbalance valve, three position four-way directional control valve, check valve, the two of three-position four-way electromagnetic directional valve
Individual outlet connects two chambers of push pedal oil cylinder respectively, and the small chamber of push pedal oil cylinder is connected by check valve with hydraulic oil container, push pedal oil cylinder
Big chamber connected by counterbalance valve with hydraulic oil container；Described counterbalance valve is made up of solenoid directional control valve, logical valve and overflow valve；
Variable speed electric motors, particularly in power unit I is connected with two-way quantitative pump/motor, and constant-seed motor is connected with auxiliary hydraulic pump,
Electric machine controller is communicated with master controller by CAN；Aid in going out for the 9th 2/2-way solenoid directional control valve in pumping source II
Mouth is connected with the entrance of accumulator, the entrance of the outlet connection three-position four-way electromagnetic directional valve of auxiliary hydraulic pump；
In the 2/2-way solenoid directional control valve of first 2/2-way solenoid directional control valve ~ the 9th, electromagnetic relief valve and counterbalance valve
The electromagnet of solenoid directional control valve is all connected with the output end of master controller, the signal output part connection main control of two pressure sensors
The signal acquisition mouth of device, the signal acquisition mouth of the signal output port connection master controller of eight proximity switches.
Further scheme is that variable speed electric motors, particularly and constant-seed motor can be AC induction motor, permagnetic synchronous motor or open
Close reluctance motor；
Standby enclosed variable speed pump control hydraulic system is installed on pure electric compression type garbage truck, it is characterised in that the first electromagnetism
The electromagnetic switch pump of reversal valve ~ the 9th is using two-way plug-in valve as main valve, structure type of the Solenoid ball valve as pilot valve；
Described electric machine controller includes the first inverter bridge, the second inverter bridge, sample circuit and inverter controller, and first
Inverter bridge and the second inverter bridge share sample circuit and inverter controller, respectively constitute the first controller and second controller；Control
Device processed connects constant-seed motor, second controller connection variable speed electric motors, particularly；The unit that variable speed electric motors, particularly is formed with controller has four-quadrant
Operation function, can rotate forward to invert, not only can be with electronic but also can generate electricity under every kind of steering；Constant-seed motor and controller structure
Into unit only there are unidirectional electric functions.
In the entire system, two of which hydraulic control one-way valve is as Fill valve；Accumulator is as the chamber flow of cylinder with differential effect two
With element；Two-way quantitative pump/motor, you can with bidirectional rotation, and can not only be used as pump condition to run but also motor work can be used as
Condition is run；
Contain control program in master controller, according to the state of the signal value of two pressure sensors, eight proximity switches
To control variable speed electric motors, particularly steering, rotating speed, the start-stop of constant-seed motor, the break-make of reversal valve electromagnet current.
Beneficial effects of the present invention：Overall oil circuit can greatly reduce tankage using closed system, simplify system knot
Structure；Motor speed is set according to the operating mode of each actuator, can reach when upper installing is not for working, the effect of motor stalling
Fruit, operating efficiency is both improved, turn avoid empty stream and throttling loss；In negative load behavior turning by two-way quantitative pump/motor
Electric power generation is changed, load gravitional force electric energy can be converted into, so greatly reduce the consumption of the energy content of battery, improve whole
The course continuation mileage of car and the life-span for extending battery.
Brief description of the drawings
Fig. 1 compression type garbage trucks traditionally install standby hydraulic scheme；
Fig. 2 systematic schematic diagrams of the embodiment of the present invention；
Fig. 3 motor controller system structural representations；
In figure：
1- variable speed electric motors, particularlies, 2- electric machine controllers, 3- electrokinetic cells, 4- two-way quantitatives pump/motor, 5- accumulators, 6- constant speed
Motor, 7- auxiliary hydraulic pumps, 8- electromagnetic relief valves, 9- first pressures sensor, 10- turn over a barrel oil cylinder, 11- elevating rams, 12- and scraped
Leaf fat cylinder, 13- skateboard tanks, 14- master controllers, 15- counterbalance valves, 16- three-position four-way electromagnetic directional valves, 17- push pedals oil cylinder,
18- check valves, 19- second pressures sensor, 20- hydraulic oil containers, the inverter bridges of 21- first, the inverter bridges of 22- second, 221- first
Controller, 222- second controllers, 151- logical valves, 152- solenoid directional control valves, 153- overflow valves；
The 2/2-way solenoid directional control valve of the first 2/2-ways of VD1 ~ VD9- solenoid directional control valve ~ the 9th, J1 ~ J8- first are close
The ~ the eight proximity switch of switch, the hydraulic control one-way valves of V1- first, the hydraulic control one-way valves of V2- second, the safety valves of V3- first, V4- second pacify
Full valve；
I- power units, II- auxiliary pumping source, III- closed-type cylindrical gearings unit, IV- push pedal systems.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 2 standby enclosed variable speed pump control hydraulic system is installed on pure electric compression type garbage truck, including it is two-way fixed
Amount pump/motor 4, auxiliary hydraulic pump 7, turn over barrel oil cylinder 10, elevating ram 11, scraper plate oil cylinder 12, skateboard tank 13, push pedal oil cylinder
17th, hydraulic oil container 20, it is characterised in that system also includes power unit I, auxiliary pumping source II, closed-type cylindrical gearing unit III, push pedal
System IV, master controller 14；
The power unit I includes variable speed electric motors, particularly 1, electric machine controller 2, electrokinetic cell 3, constant-seed motor 6, electrokinetic cell 3
Constant-seed motor 6 and variable speed electric motors, particularly 1 are connected by electric machine controller 2 respectively；
The auxiliary pumping source II include auxiliary hydraulic pump 7, electromagnetic relief valve 8, the 9th 2/2-way solenoid directional control valve VD9,
First pressure sensor 9, two branches that auxiliary hydraulic pump 7 exports, the 2/2-way electromagnetism of electromagnetic relief valve 8 and the 9th is connected respectively
Reversal valve VD9, the pressure tap of first pressure sensor 9 are connected to the 9th 2/2-way solenoid directional control valve VD9 outlet；
The closed-type cylindrical gearing unit III includes two-way quantitative pump/motor 4, accumulator 5, the first 2/2-way electromagnetic switch
The 2/2-way solenoid directional control valve VD8 of valve VD1 ~ the 8th, the first hydraulic control one-way valve V1, the second hydraulic control one-way valve V2, the first safety valve
The proximity switch J8 of V3, the second safety valve V4, second pressure sensor 19, the first proximity switch J1 ~ the 8th, two-way quantitative pump/horse
Up to 4 inlet and outlet respectively connection turn over barrel oil cylinder 10, elevating ram 11, scraper plate oil cylinder 12,13 each group oil cylinder of skateboard tank two
Chamber, and respectively changed between each chamber of group oil cylinder two and the inlet and outlet of two-way quantitative pump/motor 4 with a 2/2-way electromagnetism
Separated to valve；Per group oil cylinder piston rod proximity switch is respectively provided with the most short and most long position of impulse stroke；Described two
The outlet of safety valve is connected, and two safety valve two entrances are connected to the entrance of two-way quantitative pump/motor 4 and gone out
Mouthful；The positive entrance of two hydraulic control one-way valves is connected, and described two hydraulic control one-way valves, two outlets are connected to two-way
The entrance and exit of quantitative pump/motor 4, each hydraulic control mouth are connected to the outlet of docking hydraulically-controlled one-way valve；And two safety valves
Outlet, the entrance of positive entrance and accumulator of two hydraulic control one-way valves are joined directly together；
The push pedal system IV includes counterbalance valve 15, three position four-way directional control valve 16, check valve 18,3-position 4-way electromagnetic switch
Two outlets of valve 16 connect two chambers of push pedal oil cylinder 17 respectively, and the small chamber of push pedal oil cylinder 17 passes through check valve 18 and hydraulic oil container
20 are connected, the big chamber of push pedal oil cylinder 17 is connected by counterbalance valve 15 and hydraulic oil container 20；Described counterbalance valve 15 is by electromagnetic switch
Valve 152, logical valve 151 and overflow valve 153 form；
Variable speed electric motors, particularly 1 in power unit I is connected with two-way quantitative pump/motor 4, and constant-seed motor 6 connects with auxiliary hydraulic pump 7
Connect, electric machine controller 2 is communicated with master controller 14 by CAN；Aid in the 9th 2/2-way electromagnetic switch in pumping source II
Valve VD9 outlet is connected with the entrance of accumulator 5, and the outlet connection three-position four-way electromagnetic directional valve 16 of auxiliary hydraulic pump 7 enters
Mouthful；
The 2/2-way solenoid directional control valve VD9 of first 2/2-way solenoid directional control valve VD1 ~ the 9th, electromagnetic relief valve 8 and back pressure
The electromagnet of solenoid directional control valve 152 in valve 15 is all connected with the output end of master controller 14, and the signal of two pressure sensors is defeated
Go out the signal acquisition mouth of end connection master controller 14, the signal of the signal output port connection master controller 14 of eight proximity switches
Acquisition port.
Further scheme is, variable speed electric motors, particularly 1 and constant-seed motor 6 can be AC induction motor, permagnetic synchronous motor or
Switched reluctance machines；
Standby enclosed variable speed pump control hydraulic system, the first solenoid directional control valve VD1 ~ the are installed on pure electric compression type garbage truck
Nine solenoid directional control valve VD9 are using two-way plug-in valve as main valve, structure type of the Solenoid ball valve as pilot valve；
Described electric machine controller 2 includes the first inverter bridge 21, the second inverter bridge 22, sample circuit and inversion control
Device, the first inverter bridge 21 and the second inverter bridge 22 share sample circuit and inverter controller, respectively constitute the He of the first controller 221
Second controller 222；First controller 221 connects constant-seed motor 6, and second controller 222 connects variable speed electric motors, particularly 1；Variable speed electric motors, particularly 1
The unit formed with second controller 222 has four quadrant running function, and can rotate forward to invert, and both may be used under every kind of steering
With electronic and can generate electricity；The unit that constant-seed motor 6 and controller 1 are formed only has unidirectional electric functions.
In the entire system, two of which hydraulic control one-way valve is as Fill valve；Accumulator 5 is used as the chamber flow of cylinder with differential effect two
With element；Two-way quantitative pump/motor 4, you can with bidirectional rotation, and can not only be used as pump condition to run but also motor work can be used as
Condition is run；
Contain control program in master controller 14, according to the signal value of two pressure sensors, the shape of eight proximity switches
State is to control variable speed electric motors, particularly 1 to turn to, rotating speed, the start-stop of constant-seed motor 6, the break-make of reversal valve electromagnet current.
Its specific work process is described as follows：
System electrification, before executing agency's action, master controller 14 controls reversal valve in electromagnetic relief valve 8 to conduct, and examines
The pressure value P of first pressure sensor 9 is surveyed, when pressure value P is less than the Pmin of setting, then master controller 14 is given by CAN
Electric machine controller 2 sends the enabled instruction of constant-seed motor 6, after being delayed 1 second, reversal valve dead electricity in electromagnetic relief valve 8, and the 9th two
Two electric change valve VD9 must be conducted, the topping up into accumulator 5 of auxiliary hydraulic pump 7, when the pressure of first pressure sensor 9
When value P reaches the Pmax of setting, the 9th 2/2-way solenoid directional control valve VD9 must be electrically turn off, and reversal valve obtains electric in electromagnetic relief valve 8
Conducting.
When turning over the action of barrel oil cylinder 10, the first 2/2-way solenoid directional control valve VD1, the 5th 2/2-way solenoid directional control valve
VD5 must be conducted, the 2/2-way solenoid directional control valve VD4 of the second 2/2-way reversal valve VD2 ~ the 4th, the 6th 2/2-way electromagnetism
The 2/2-way VD8 dead electricity of reversal valve VD6 ~ the 8th is closed, and the target that master controller 14 sends variable speed electric motors, particularly 1 by CAN turns
Speed and steering, such as, turn over barrel oil cylinder 10 and stretch out lifting dustbin, it is big to barrel oil cylinder 10 is turned over that two-way quantitative pump/motor 4 exports fluid
Chamber, due to small chamber oil return, the flow-rate ratio oil-feed of small chamber oil return is small, thus the tapping of accumulator 5 and small chamber collaborate to two-way quantitative pump/
The fuel feeding of motor 4；When turning over the retraction of barrel oil cylinder 10, variable speed electric motors, particularly 1, which turns to, to be changed, and now the small chamber feed liquor of oil cylinder, big chamber return liquid, return liquid stream
Amount is more than flow needed for two-way quantitative pump/motor 4, and redundance stores into accumulator 5, therefore accumulator 5 can play stream
Flux matched effect.
When elevating ram 11 acts, the second 2/2-way reversal valve VD2, the 6th 2/2-way reversal valve VD6 obtains conductance
It is logical, the 2/2-way solenoid directional control valve VD5 of the first 2/2-way reversal valve VD1, the 3rd 2/2-way solenoid directional control valve VD3 ~ the 5th,
The 2/2-way solenoid directional control valve VD8 dead electricity of 7th 2/2-way solenoid directional control valve VD7 ~ the 8th is closed, when elevating ram 11 stretches out
Similar with barrel oil cylinder 10 is turned over, when retraction transfers compression mechanism, now the gravity of compression mechanism causes two-way quantitative pump/motor 4
Motor operating conditions are operated in, now motor is in generating state, and gravitional force can be so converted into power storage in power electric
Chi Zhong.
When scraper plate oil cylinder 12 acts, the 3rd 2/2-way reversal valve VD3, the 7th 2/2-way solenoid directional control valve VD7 are obtained
Conduct, the 2/2-way solenoid directional control valve VD2 of the first 2/2-way solenoid directional control valve VD1 ~ second, the 4th 2/2-way electromagnetism changes
To the 2/2-way solenoid directional control valve VD6 of valve VD4 ~ the 6th, the 8th 2/2-way solenoid directional control valve VD8 dead electricity is closed, scraper plate oil cylinder
12 operating modes extended and retracted are similar with elevating ram 11.
When skateboard tank 13 acts, the 4th 2/2-way solenoid directional control valve VD4, the 8th 2/2-way solenoid directional control valve
VD8 must be conducted, the 2/2-way solenoid directional control valve VD3 of the first 2/2-way solenoid directional control valve VD1 ~ the 3rd, the 5th 2/2-way
The 2/2-way solenoid directional control valve VD7 dead electricity of solenoid directional control valve VD5 ~ the 7th is closed, when skateboard tank 13 is retracted, when second pressure passes
When 19 measuring pressures of sensor are less than setting value Ps, the dead electricity of solenoid directional control valve 152 in counterbalance valve 15, when pressure is more than or equal to setting value
During Ps, then the solenoid directional control valve 152 obtains electric, push pedal oil cylinder 17 is retracted, and completes rubbish loading process.
When garbage truck is in dumping ground, master controller 14 makes reversal valve dead electricity in electromagnetic relief valve 8, starts auxiliary hydraulic pump
7, control the left side electromagnet of three-position four-way electromagnetic directional valve 16 obtain it is electric valve be in left position, such push pedal oil cylinder 17 stretches out, completion
Refuse-unloading process.
When executing agency is failure to actuate, variable speed electric motors, particularly 1 is out of service, can so avoid the empty stream loss of original system.
Claims (1)
1. installing standby enclosed variable speed pump control hydraulic system on a kind of pure electric compression type garbage truck, including turn over a barrel oil cylinder（10）、
Elevating ram（11）, scraper plate oil cylinder（12）, skateboard tank（13）, push pedal oil cylinder（17）, hydraulic oil container（20）, it is characterised in that
System also includes power unit（I）, auxiliary pumping source（II）, closed-type cylindrical gearing unit（III）, push pedal system（IV）, master controller
（14）；
The power unit（I）Including variable speed electric motors, particularly（1）, electric machine controller（2）, electrokinetic cell（3）, constant-seed motor（6）, power
Battery（3）Pass through electric machine controller（2）Constant-seed motor is connected respectively（6）And variable speed electric motors, particularly（1）；
The auxiliary pumping source（II）Including auxiliary hydraulic pump（7）, electromagnetic relief valve（8）, the 9th 2/2-way solenoid directional control valve
（VD9）, first pressure sensor（9）, auxiliary hydraulic pump（7）Two branches of outlet, connect electromagnetic relief valve respectively（8）With the 9th
2/2-way solenoid directional control valve（VD9）, first pressure sensor（9）Pressure tap be connected to the 9th 2/2-way solenoid directional control valve
（VD9）Outlet；
The closed-type cylindrical gearing unit（III）Including two-way quantitative pump/motor（4）, accumulator（5）, the first 2/2-way electromagnetism changes
To valve（VD1）~ the eight 2/2-way solenoid directional control valve（VD8）, the first hydraulic control one-way valve（V1）, the second hydraulic control one-way valve（V2）、
First safety valve（V3）, the second safety valve（V4）, second pressure sensor（19）, the first proximity switch（J1）~ the eight close to opening
Close（J8）, two-way quantitative pump/motor（4）Inlet and outlet connect turn over a barrel oil cylinder respectively（10）, elevating ram（11）, scraper plate oil cylinder
（12）, skateboard tank（13）Two chambers of each group oil cylinder, and in each chamber of group oil cylinder two and two-way quantitative pump/motor（4）Enter
Respectively separated between outlet with a 2/2-way solenoid directional control valve；Per group oil cylinder piston rod in the most short of impulse stroke and most
Long position is respectively provided with proximity switch；The outlet of two safety valves is connected, two safety valves two entrances point
Two-way quantitative pump/motor is not connected to（4）Entrance and exit；The positive entrance of two hydraulic control one-way valves is connected, described
Two hydraulic control one-way valves, two outlets are connected to two-way quantitative pump/motor（4）Entrance and exit, the connection of each hydraulic control mouth
To the outlet of docking hydraulically-controlled one-way valve；And the outlet of two safety valves, the positive entrance and accumulator of two hydraulic control one-way valves
Entrance is joined directly together；
The push pedal system（IV）Including counterbalance valve（15）, three position four-way directional control valve（16）, check valve（18）, 3-position 4-way electromagnetism
Reversal valve（16）Two outlet respectively connect push pedal oil cylinder（17）Two chambers, push pedal oil cylinder（17）Small chamber pass through check valve
（18）With hydraulic oil container（20）It is connected, push pedal oil cylinder（17）Big chamber pass through counterbalance valve（15）And hydraulic oil container（20）Connection；Institute
The counterbalance valve stated（15）By solenoid directional control valve（152）, logical valve（151）And overflow valve（153）Composition；
Power unit（I）In variable speed electric motors, particularly（1）With two-way quantitative pump/motor（4）Drive connection, constant-seed motor（6）With auxiliary
Hydraulic pump（7）Connection, electric machine controller（2）With master controller（14）Communicated by CAN；Aid in pumping source（II）In the 9th
2/2-way solenoid directional control valve（VD9）Outlet and accumulator（5）Entrance be connected, auxiliary hydraulic pump（7）Outlet connection three
Position four-way electromagnetic reversing valve（16）Entrance；
First 2/2-way solenoid directional control valve（VD1）~ the nine 2/2-way solenoid directional control valve（VD9）, electromagnetic relief valve（8）With
Counterbalance valve（15）In solenoid directional control valve（152）Electromagnet be all connected with master controller（14）Output end, two pressure sensings
The signal output part connection master controller of device（14）Signal acquisition mouth, the signal output port connection master control of eight proximity switches
Device processed（14）Signal acquisition mouth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710084272.8A CN106678130B (en) | 2017-02-16 | 2017-02-16 | Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck |
| CN201810049229.2A CN108412825B (en) | 2017-02-16 | 2017-02-16 | Closed variable-speed pump control hydraulic system of pure electric compression type garbage truck loading equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710084272.8A CN106678130B (en) | 2017-02-16 | 2017-02-16 | Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck |
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| CN201810049229.2A Division CN108412825B (en) | 2017-02-16 | 2017-02-16 | Closed variable-speed pump control hydraulic system of pure electric compression type garbage truck loading equipment |
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| CN106678130A CN106678130A (en) | 2017-05-17 |
| CN106678130B true CN106678130B (en) | 2018-02-16 |
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| CN201710084272.8A Active CN106678130B (en) | 2017-02-16 | 2017-02-16 | Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108412825A (en) * | 2017-02-16 | 2018-08-17 | 数源科技股份有限公司 | The standby enclosed variable speed pump control hydraulic system of installing on a kind of pure electric vehicle compression type garbage truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165896A (en) * | 2017-07-03 | 2017-09-15 | 扬州海纳尔液压设备有限公司 | A kind of Mobile garbage compression box variable frequency power mechanism |
| CN109654072A (en) * | 2019-01-21 | 2019-04-19 | 湖北新楚风汽车股份有限公司 | The electronic kitchen waste cart hydraulic control system of energy-saving pure |
| CN114233709A (en) * | 2021-12-30 | 2022-03-25 | 启航汽车有限公司 | Hydraulic device for compression type garbage truck and compression type garbage truck |
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| CN101545502A (en) * | 2008-03-28 | 2009-09-30 | 江苏悦达专用车有限公司 | Compression garbage truck hydraulic system |
| CN201419906Y (en) * | 2009-05-18 | 2010-03-10 | 深圳东风汽车有限公司 | Compression control system of rear-loading compression type garbage truck |
| MX338307B (en) * | 2009-06-11 | 2016-04-07 | Eaton Corp | Fault detection and mitigation in hybrid drive system. |
| CN101692027B (en) * | 2009-08-27 | 2011-05-11 | 哈尔滨工业大学 | Universal material testing machine for variable rotating speed pump control hydraulic servo loading system |
| SE535284C2 (en) * | 2010-01-25 | 2012-06-12 | Bt Products Ab | Method for cleaning hydraulic fluid, computer program product, control unit and industrial truck |
| JP5493136B2 (en) * | 2011-05-12 | 2014-05-14 | 日立建機株式会社 | Control device for work machine |
| CN202379358U (en) * | 2011-12-16 | 2012-08-15 | 青岛同辉汽车技术有限公司 | Hydraulic protection device for compression type garbage truck |
| CN102536932A (en) * | 2012-01-11 | 2012-07-04 | 中联重科股份有限公司 | Compression refuse collector and hydraulic system thereof |
| TWM465379U (en) * | 2013-02-05 | 2013-11-11 | Dokin Motors Co Ltd | Compression control system of garbage truck having engine power source and electric power source |
| US9145905B2 (en) * | 2013-03-15 | 2015-09-29 | Oshkosh Corporation | Independent load sensing for a vehicle hydraulic system |
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| CN203730425U (en) * | 2013-11-01 | 2014-07-23 | 湖北航天双龙专用汽车有限公司 | Speed regulation device for hydraulic system of garbage truck |
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| CN104358284B (en) * | 2014-10-29 | 2016-10-05 | 华侨大学 | A kind of electro-hydraulic hybrid drive system of hydraulic excavating machine oil |
| CN204458656U (en) * | 2014-12-29 | 2015-07-08 | 烨辉（中国）科技材料有限公司 | A kind of energy-saving oil pressing system |
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| CN206487722U (en) * | 2017-02-16 | 2017-09-12 | 数源科技股份有限公司 | Standby enclosed variable speed pump control hydraulic system is installed on a kind of pure electric compression type garbage truck |
| CN108412825B (en) * | 2017-02-16 | 2019-12-27 | 数源科技股份有限公司 | Closed variable-speed pump control hydraulic system of pure electric compression type garbage truck loading equipment |
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- 2017-02-16 CN CN201710084272.8A patent/CN106678130B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412825A (en) * | 2017-02-16 | 2018-08-17 | 数源科技股份有限公司 | The standby enclosed variable speed pump control hydraulic system of installing on a kind of pure electric vehicle compression type garbage truck |
| CN108412825B (en) * | 2017-02-16 | 2019-12-27 | 数源科技股份有限公司 | Closed variable-speed pump control hydraulic system of pure electric compression type garbage truck loading equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108412825B (en) | 2019-12-27 |
| CN108412825A (en) | 2018-08-17 |
| CN106678130A (en) | 2017-05-17 |
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