CN205706330U - A kind of pure Electric dump truck hydraulic lifting system - Google Patents
A kind of pure Electric dump truck hydraulic lifting system Download PDFInfo
- Publication number
- CN205706330U CN205706330U CN201620341675.7U CN201620341675U CN205706330U CN 205706330 U CN205706330 U CN 205706330U CN 201620341675 U CN201620341675 U CN 201620341675U CN 205706330 U CN205706330 U CN 205706330U
- Authority
- CN
- China
- Prior art keywords
- valve
- accumulator
- hydraulic
- dump truck
- pure electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of pure Electric dump truck hydraulic lifting system, belongs to automobile technical field.System is made up of fuel tank, hydraulic pump, motor, overflow valve, hydraulic control one-way valve, proportional throttle valve, check valve, pressure transducer, stop valve, accumulator, solenoid directional control valve, multistage hydraulic cylinder；Employing accumulator is as power source, to elevating ram fuel feeding, it is achieved loading space upset unloading；Oil circuit equipped with pressure transducer, the pressure of detection accumulator, according to setting pressure, controller can the unlatching of auto-controlled motor, maintain accumulator inner fluid pressure, it is ensured that have the lifting for container of the enough fluid.This utility model uses two proportional throttle valves to be controlled lifting and dropping process, by reconciling the aperture area of proportional throttle valve, pull-cylinder phenomena will not occurs due to the inertia of loading space, does not also have the phenomenon of impact vehicle frame；By pressure transducer, solenoid directional control valve and proportional throttle valve, it is easy to accomplish automatically control, facilitate arrangement.
Description
Technical field
This utility model relates to automobile technical field, the hydraulic lifting system of a kind of pure Electric dump truck.
Background technology
Pure electric automobile is increasingly pursued by society with the superiority of its energy-conserving and environment-protective, but due to battery technology
Defect, pure electric automobile store electric energy ability still there is bottleneck.The purest Electric dump truck hydraulic pressure system
System must be the most energy-efficient, to increase the working time of car load.
The most common dump truck hydraulic lifting system, uses Engine driven Hydraulic Pump mostly, and output is certain
Pressure and the hydraulic oil of flow, enter lifting hydraulic jack, drives loading space upset, completes the lifting of dump truck
Action, such as Chinese invention patent CN 103738220A, the hydraulic pump that utilizes of announcement produces hydraulic oil, hydraulic oil
Directly drive the dump truck hydraulic lifting system of hydraulic cylinder.The power of this kind of hoisting system is very big, if should
For pure Electric dump truck, needing to use high power motor to drive hydraulic pump, hydraulic lifting system consumes
Electric energy is too much, and the car load working time can greatly reduce, and does not meets the user's request of energy-conserving and environment-protective, efficient work.
Summary of the invention
Problem to be solved in the utility model is, preferably saves the electric energy of pure Electric dump truck, and efficiently
The function realizing hydraulic lifting system, this utility model provides a kind of pure Electric dump truck hydraulic lifting system
System, transmission process is the most energy-efficient, controls simple.
For realizing above-mentioned technical purpose, this utility model will take following technical scheme:
A kind of pure Electric dump truck lifting hydraulic system, it is characterised in that system is by fuel tank, hydraulic pump, electronic
Machine, overflow valve, hydraulic control one-way valve, proportional throttle valve A, check valve, pressure transducer, stop valve, accumulation of energy
Device, solenoid directional control valve A, multistage hydraulic cylinder, solenoid directional control valve B, proportional throttle valve B are constituted；System uses
Accumulator is as power source, to elevating ram fuel feeding, it is achieved loading space upset unloading；Accumulator is connected with hydraulic pump,
Motor-driven hydraulic pump works, hydraulic oil, through check valve, enters accumulator, carries out oil-filled；Oil circuit equipped with
Pressure transducer, the pressure of detection accumulator, according to setting pressure, control circuit can auto-controlled motor
Open, maintain accumulator inner fluid pressure, it is ensured that have the lifting for container of the enough fluid.
Further, equipped with the hydraulic control one-way valve controlled by solenoid directional control valve, liquid between accumulator and elevating ram
Control check valve is normally closed, it is ensured that in the accumulator topping up stage, hydraulic oil will not enter load lifting cylinder, it is ensured that security of system,
During lifting, hydraulic control one-way valve can be opened by solenoid directional control valve；
Further, equipped with proportional throttle valve A between accumulator and elevating ram, by gradually troclia head piece
Flow area, can make hydraulic oil enter elevating ram smoothly from accumulator, it is ensured that hoisting system smooth working；
Further, equipped with proportional throttle valve B between elevating ram and fuel tank, by regulating the big of restriction
Little, it is ensured that loading space steadily declines；
Further, equipped with solenoid directional control valve between elevating ram and fuel tank, hoisting system can be made to realize floating
Operating mode.Make dump truck when complex road surface travels, reduce impact and the cavitation of hydraulic system；
Further, equipped with stop valve between accumulator and fuel tank, open stop valve and can empty in accumulator
Pressure oil.
This utility model is compared have the advantage that with tradition dump truck hydraulic lifting system and is:
1, when dump truck is not unloaded (overwhelming majority times be this operating mode), by motor-driven hydraulic pump to
Accumulator fuel feeding, during loading space lifting, is provided pressure oil by accumulator to elevating ram.Due to general dump truck
Working cycle is longer, and hydraulic pump has time enough to accumulator topping up, can select the hydraulic pump of small displacement,
Use fractional electric motor, the power that hydraulic system consumes is the least, and the car load working time is greatly increased.With
As a example by the dump truck of load capacity of 50 tons, if using hydraulic oil pump directly to elevating ram fuel feeding, in order to as far as possible
Shortening the lifting time, the power of required driving motor will reach more than 100KW, if, with this utility model
Pure Electric dump truck hydraulic lifting system, can ensure on the premise of the same lifting time, liquid will lifted
Pressure system power drops to below 10KW；
2, use two proportional throttle valves that lifting and dropping process are controlled, by reconciling proportional throttle valve
Aperture area, it is ensured that when lifting terminal, due to the inertia of loading space, pull-cylinder phenomena will not occur, fall eventually
During point, do not have the phenomenon of impact vehicle frame yet；
3, by pressure transducer, solenoid directional control valve and proportional throttle valve, it is easy to accomplish automatically control, convenient
Arrangement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of pure Electric dump truck hydraulic lifting system
[main element symbol description]
1-fuel tank；2-hydraulic pump；3-motor；4-overflow valve；5-hydraulic control one-way valve；6-proportional throttle valve A；7-is mono-
To valve；8-pressure transducer；9-stop valve；10-accumulator；11-solenoid directional control valve A；12-multistage hydraulic cylinder；
13-solenoid directional control valve B；14-proportional throttle valve B.
Specific implementation method
With specific implementation method, this utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model discloses a kind of pure Electric dump truck lifting hydraulic system, 1-fuel tank；2-hydraulic pump；
3-motor；4-overflow valve；5-hydraulic control one-way valve；6-proportional throttle valve A；7-check valve；8-pressure sensing
Device；9-stop valve；10-accumulator；11-solenoid directional control valve A；12-multistage hydraulic cylinder；13-solenoid directional control valve
B；14-proportional throttle valve B.This system employing accumulator is as power source, to elevating ram fuel feeding, it is achieved goods
Railway carriage or compartment upset unloading.
Course of action of the present utility model is as follows: when dump truck is not unloaded, and motor 3 drives hydraulic pump 2
Work, output certain pressure and the hydraulic oil of flow, enter accumulator 10 through check valve 7, when pressure passes
Sensor 8 detects that, when accumulator 10 inner fluid pressure reaches setting value, motor 3 quits work, accumulator
10 topping ups are complete.Equipped with being controlled by solenoid directional control valve A 11 between accumulator 10 and proportional throttle valve A 6
Hydraulic control one-way valve 5, as long as solenoid directional control valve A 11 no power, hydraulic control one-way valve 5 remains off, anti-
Only because proportional throttle valve A 6 is poorly sealed or abnormal operation, accumulator 10 inner fluid is caused to enter lifting oil
Cylinder 12 makes loading space lift suddenly.Proportional throttle valve A 6 and proportional throttle valve B14, when no power, keeps closing
Closed state, elevating ram 12 is connected by solenoid directional control valve B 13 with fuel tank 1, it is achieved the floating work of hoisting system
Condition, when dump truck travels at complex road surface, due to elevating ram retractable, it is to avoid due on loading space
Under jolt and cause the impact in lifting hydraulic system and cavitation.When dump truck unloading to be lifted, first
Solenoid directional control valve B 13 and solenoid directional control valve A 11 is energized, disconnects between elevating ram 12 and fuel tank 1
Oil circuit, by solenoid directional control valve A11, reversely opens hydraulic control one-way valve 5 from the pressure oil in accumulator 10
Open.Proportional throttle valve A6 is gradually opened by controller, and in accumulator 10, pressure oil is through hydraulic control one-way valve 5, ratio
The entrance elevating ram that example throttle valve A 6 is stable, it is achieved loading space upset unloading.Owing to pressure transducer 8 detects
Reducing to system pressure, motor 3 starts automatically, drives hydraulic oil pump 2 pressure oil output, with accumulator
10 output fluid interflow enter elevating ram, shorten the lifting time further.In Discharging Process, if needed
Want centre position to keep stopping, solenoid directional control valve A 11 power-off can be passed through, and then close hydraulic control one-way valve 5
Realize.When closing on lifting terminal, proportional throttle valve A 6 turns down, and reduces loading space lifting speed, it is to avoid due to used
Property reverse drawing hydraulic jack.After completing unloading, solenoid directional control valve A11 power-off, hydraulic control one-way valve 5 is closed, gradually
Opening proportional throttle valve B14, loading space starts to fall after rise.When loading space falls close to terminal, reduce proportional throttle valve
B14 opening amount, reduces loading space falling speed, it is to avoid vehicle frame is produced greater impact.
Claims (6)
1. a pure Electric dump truck hydraulic lifting system, it is characterised in that system is made up of fuel tank, hydraulic pump, motor, overflow valve, hydraulic control one-way valve, proportional throttle valve A, check valve, pressure transducer, stop valve, accumulator, solenoid directional control valve A, multistage hydraulic cylinder, solenoid directional control valve B, proportional throttle valve B；System employing accumulator is as power source, to elevating ram fuel feeding, it is achieved loading space upset unloading；Accumulator is connected with hydraulic pump, motor-driven hydraulic pump works, and hydraulic oil, through check valve, enters accumulator, carries out oil-filled；Oil circuit equipped with pressure transducer, the pressure of detection accumulator, according to setting pressure, control circuit can the unlatching of auto-controlled motor, maintain accumulator inner fluid pressure, it is ensured that have the lifting for container of the enough fluid.
A kind of pure Electric dump truck hydraulic lifting system, it is characterized in that between accumulator and elevating ram equipped with the hydraulic control one-way valve controlled by solenoid directional control valve, hydraulic control one-way valve is normally closed, ensure the accumulator topping up stage, hydraulic oil will not enter load lifting cylinder, ensureing security of system, during lifting, hydraulic control one-way valve can be opened by solenoid directional control valve.
A kind of pure Electric dump truck hydraulic lifting system, it is characterized in that between accumulator and elevating ram equipped with proportional throttle valve A, by gradually troclia head piece flow area, hydraulic oil can be made from accumulator to enter elevating ram smoothly, it is ensured that hoisting system smooth working.
A kind of pure Electric dump truck hydraulic lifting system, it is characterised in that equipped with proportional throttle valve B between elevating ram and fuel tank, by regulating the size of restriction, it is ensured that loading space steadily declines.
A kind of pure Electric dump truck hydraulic lifting system, it is characterised in that equipped with solenoid directional control valve between elevating ram and fuel tank, makes hoisting system realize floating operating mode；Make dump truck when complex road surface travels, reduce impact and the cavitation of hydraulic system.
A kind of pure Electric dump truck hydraulic lifting system, it is characterised in that equipped with stop valve between accumulator and fuel tank, opens stop valve and can empty the pressure oil in accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341675.7U CN205706330U (en) | 2016-04-21 | 2016-04-21 | A kind of pure Electric dump truck hydraulic lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341675.7U CN205706330U (en) | 2016-04-21 | 2016-04-21 | A kind of pure Electric dump truck hydraulic lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205706330U true CN205706330U (en) | 2016-11-23 |
Family
ID=57296568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620341675.7U Expired - Fee Related CN205706330U (en) | 2016-04-21 | 2016-04-21 | A kind of pure Electric dump truck hydraulic lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205706330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730306A (en) * | 2016-04-21 | 2016-07-06 | 北京科技大学 | Pure electronic dump truck hydraulic lifting system and operation method |
| CN107503994A (en) * | 2017-02-16 | 2017-12-22 | 数源科技股份有限公司 | Energy-saving back pressure system and control method are filled on a kind of pure electric compression type garbage truck |
-
2016
- 2016-04-21 CN CN201620341675.7U patent/CN205706330U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730306A (en) * | 2016-04-21 | 2016-07-06 | 北京科技大学 | Pure electronic dump truck hydraulic lifting system and operation method |
| CN107503994A (en) * | 2017-02-16 | 2017-12-22 | 数源科技股份有限公司 | Energy-saving back pressure system and control method are filled on a kind of pure electric compression type garbage truck |
| CN107503994B (en) * | 2017-02-16 | 2024-01-30 | 数源科技股份有限公司 | Energy-saving back pressure system for loading pure electric compression garbage truck and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105730306B (en) | A kind of pure Electric dump truck hydraulic lifting system and operating method | |
| CN102108948B (en) | Renewable energy power generating system applicable to electrocar for loading, unloading and transporting | |
| CN106402058B (en) | A kind of pure Electric dump truck hydraulic lifting system valve block assembly | |
| CN206874583U (en) | A kind of aerial work platform hydraulic energy-saving system | |
| CN205706330U (en) | A kind of pure Electric dump truck hydraulic lifting system | |
| CN206872378U (en) | A kind of aerial work platform hydraulic energy-saving system with no-load protection | |
| CN205559389U (en) | Energy recuperation system and hoist hydraulic system are transferred to hoist | |
| CN202827257U (en) | Hydraulic lifting control system for mine self-discharging vehicle and mine self-discharging vehicle | |
| CN106082039B (en) | A kind of speed limiting safety system of high position stacking door frame | |
| CN207961092U (en) | A kind of hydraulic system released without decompression valve type fork-lift truck stopping brake | |
| CN206175356U (en) | Electricelectric moves dump truck hydraulic pressure and lifts system's valve piece assembly | |
| CN116181719A (en) | Mining dump truck lifting valve pilot control device, lifting system and lifting method | |
| CN206142760U (en) | Energy recuperation system when fork truck goods descends | |
| CN201619491U (en) | Automobile automatic unloading system | |
| CN205423351U (en) | Energy recovery control system and hoisting equipment | |
| CN210884967U (en) | Automatic hook-retracting hydraulic system of straight-arm lorry-mounted crane | |
| CN205768675U (en) | The power set of electronic draw-arm dumper | |
| CN206599410U (en) | A kind of integral type back door structure applied on reach truck | |
| CN201817235U (en) | Simultaneous loading and unloading device for fork truck | |
| CN211001589U (en) | Tipping device of forklift cab | |
| CN112141963A (en) | Manual and electric integrated lifting structure and double-power pallet truck applying same | |
| CN110065425A (en) | A kind of lorry | |
| CN206129754U (en) | Tipping trailer hydraulic power units | |
| CN216589083U (en) | Integrated electric pump for carrier | |
| CN110701151A (en) | Hydraulic potential energy recycling and utilizing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20180421 |