CN207388871U - A kind of cleaning vehicle of monomotor drive hydraulic system principle - Google Patents
A kind of cleaning vehicle of monomotor drive hydraulic system principle Download PDFInfo
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- CN207388871U CN207388871U CN201721083401.3U CN201721083401U CN207388871U CN 207388871 U CN207388871 U CN 207388871U CN 201721083401 U CN201721083401 U CN 201721083401U CN 207388871 U CN207388871 U CN 207388871U
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Abstract
The utility model discloses a kind of cleaning vehicle of monomotor drive hydraulic system principle, it includes chassis, there is engine, hydraulic system, high-pressure cleaning system and low pressure sprinkler system on chassis, the bell housing of engine is equipped with Full-power takeoff, and the output terminal of the Full-power takeoff passes through clutch driving load sensitive variable pump work；Hydraulic system includes fuel tank, load-reacting pump, overflow valve, electric proportional throttle valve, three-position four-way valve, shuttle valve, high-pressure hydraulic pump drive motor and low-pressure pump drive motor, the high-pressure hydraulic pump drive motor provides power for high-pressure cleaning system, and low-pressure pump drive motor provides power for low pressure sprinkler system.Using more than structure, vehicle performance improves, oil consumption reduces, discharge is reduced, and apparatus for work system dynamic source is independent（Do not change with the variation of chassis driving cycle）, it is at low cost, safe.
Description
Technical field
The utility model is related to sanitation equipment technical field more particularly to a kind of cleanings of monomotor drive hydraulic system principle
Vehicle.
Background technology
The city road sanitation vehicles such as sweeping machine, cleaning vehicle and sweeper, the prior art are generally travelled using chassis
Engine in situ is respectively adopted with upper dress apparatus for work and assistant engine provides power.Engine in situ is used to drive vehicle row
It sails, since vehicle high-speed to be ensured is fully loaded with power required when driving, the power usually configured is in cleaning class vehicle with 20km/
Power is remaining too many during below h speed operations, and engine works not only oil consumption increase under slow-speed of revolution operating mode for a long time, influences to start
The service life of machine, greater engine carbon deposit increase maintenance cost.Work while along with assistant engine, vehicle discharge and
Noise is difficult to be controlled effectively, and vehicle energy consumption efficiency is low, particularly in the case of present haze weather getting worse, again
Secondary pollution is caused to air.
As country is more and more stringenter to the emission request of sanitation cart, many monomotors are released on the market and clean class of keeping a public place clean
Vehicle is broadly divided into two kinds, and a kind of is that the power takeoff directly from chassis speed changing box side obtains power, then passes through transfer case, transfer
Case respectively drives high-pressure hydraulic pump and low-pressure pump there are two output shaft, the drawback is that transfer case is not one to vehicle in the process of moving
It is directly working, is exactly being stopped, the state of operation and not operation can not be switched in vehicle travel process, i.e., it can not be traveling
It separated, worked independently with operation two systems.And vehicle, in different operating mode downward drivings, the rotating speed of power takeoff can be the bottom of with
The variation of disk engine speed and change, the effect of washing and cleaning operation also just changes therewith, can not ensure the different traveling of vehicle
Under state, required constant operation effectiveness can guarantee.Another kind is obtained from the Full-power takeoff on engine in situ bell housing
Power is obtained, then by transfer case, high-pressure hydraulic pump, low-pressure pump and other apparatus for work are respectively driven, the drawback is that in transfer case
Although front end has been equipped with clutch, but the clutch can not be separated and combined at any time in vehicle travel process, after all ring
It is all the operation in traveling to defend the vehicle most of the time, to be stopped at any time according to road conditions, pedestrian or obstacle or restart operation,
Operation is converted per secondary parking, not only operating efficiency is low, and there is also the safety problems of traveling.In addition its transaction capabilities is the same as first
Kind can equally change with the variation of engine in situ rotating speed, can not ensure constant operation effectiveness.
The content of the invention
In order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of vehicle performance height, oil consumption
Low, discharge is reduced, and apparatus for work system dynamic source is independent, at low cost, safe monomotor drive hydraulic system principle it is clear
Carwash.
To achieve the above object, the utility model uses following technical scheme：
A kind of cleaning vehicle of monomotor drive hydraulic system principle, have including chassis, on chassis engine, hydraulic system,
High-pressure cleaning system and low pressure sprinkler system, the bell housing of engine are equipped with Full-power takeoff, the Full-power takeoff
Output terminal pass through clutch driving load sensitive variable pump work；
The hydraulic system includes fuel tank, load-reacting pump, overflow valve, electric proportional throttle valve, three-position four-way valve, shuttle
Valve, high-pressure hydraulic pump drive motor and low-pressure pump drive motor, the high-pressure hydraulic pump drive motor provide for high-pressure cleaning system
Power, low-pressure pump drive motor provide power for low pressure sprinkler system；
S mouths of load-reacting pump is connected to fuel tank, the P mouths of Variable plunger pump respectively with the P of overflow valve mouths, electric
1 mouthful of connection of proportional throttle valve, the T mouths of overflow valve take back fuel tank；The P of the electricity 2 mouthfuls of proportional throttle valve and three-position four-way valve
Mouth connection, the T mouths of three-position four-way valve take back fuel tank, and 2 mouthfuls with shuttle valve, high-pressure hydraulic pump drive horse to the A mouths of three-position four-way valve respectively
The P mouths connection reached, the B mouths of three-position four-way valve are connected respectively with 1 mouthful of shuttle valve and the P mouths of low-pressure pump drive motor；The shuttle
3 mouthfuls of valve are connected to the X mouths of load-reacting pump；T mouths, the X of the high-pressure hydraulic pump drive motor and low-pressure pump drive motor
Mouth takes back fuel tank.
The clutch be friction plate clutch, friction plate clutch by air pressure or hydraulic pressure come carry out control separation with
With reference to.
The three-position four-way valve is hydraulic control three-position four-way valve.
The high-pressure cleaning system is arranged on the front end on chassis, and low pressure sprinkler system is arranged on the rear end on chassis.
The utility model uses more than structure, and the hydraulic system of the load-sensitive can realize high-pressure hydraulic pump drive motor perseverance
Rotating speed exports, and can realize that rotating speed exports low-pressure pump drive motor on demand.During engine speed variation simultaneously, high-pressure hydraulic pump energy
Remain permanent rotating speed, speed error when permanent rotating speed exports can guarantee in the range of 5r/min.In short, using the hydraulic pressure system
The cleaning vehicle of system driving, vehicle performance improves, oil consumption reduces, discharge reduction, and apparatus for work system dynamic source is independent（Not with chassis
The variation of driving cycle and change）, it is at low cost, safe.
Description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is the schematic diagram of the utility model cleaning vehicle；
Fig. 2 is the schematic diagram of hydraulic system
Fig. 3 is the schematic diagram that Full-power takeoff connects load-reacting pump.
Specific embodiment
As shown in one of Fig. 1 to Fig. 3, the utility model includes chassis 1, have on chassis 1 engine 2, hydraulic system 3,
High-pressure cleaning system 4 and low pressure sprinkler system 5, the bell housing of engine 2 are equipped with Full-power takeoff 6；
The hydraulic system 3 includes fuel tank 31, load-reacting pump 32, overflow valve 33, electric proportional throttle valve 34, three
Four-way valve 35, shuttle valve 36, high-pressure hydraulic pump drive motor 37 and low-pressure pump drive motor 38, the high-pressure hydraulic pump drive motor 37
Power is provided for high-pressure cleaning system 4, low-pressure pump drive motor 38 provides power for low pressure sprinkler system 5；Wherein, load quick
Sense variable pump 32 is load-reacting plunger pump；The output terminal of the Full-power takeoff 6 is quick by 7 driving load of clutch
Sense variable pump 32 works, with output hydraulic pressure power.
S mouths of load-reacting pump 32 is connected to fuel tank 31, load-reacting pump 32 P mouths respectively with overflow
1 mouthful of connection of the P mouths of valve 33, electric proportional throttle valve 34, the T mouths of overflow valve 33 take back fuel tank 31；The electricity proportional throttle valve 34
2 mouthfuls be connected with the P mouths of three-position four-way valve 35, the T mouths of three-position four-way valve 35 take back fuel tank 31, the A mouths point of three-position four-way valve 35
Be not connected with 2 mouthfuls of shuttle valve 36, the P mouths of high-pressure hydraulic pump drive motor 37, the B mouths of three-position four-way valve 35 respectively with shuttle valve 36 1
Mouth and the P mouths of low-pressure pump drive motor 38 connect；3 mouthfuls of the shuttle valve 36 are connected to the X mouths of load-reacting pump 32；It is described
The T of high-pressure hydraulic pump drive motor 37 and low-pressure pump drive motor 38 mouths, X mouthfuls take back fuel tank 31.
The clutch 7 is friction plate clutch 7, and friction plate clutch 7 carries out control point by air pressure or hydraulic pressure
From with combination.No matter vehicle can be operated at any time under dead ship condition or high-speed travel state.
The three-position four-way valve 35 is hydraulic control three-position four-way valve 35（Left position function or the right side are in including main valve and control bound
The pilot valve of median function）.
The high-pressure cleaning system 4 is arranged on the front end on chassis 1, and low pressure sprinkler system 5 is arranged on the rear end on chassis 1.
In the utility model, high-pressure hydraulic pump drive motor 37 is cut with low-pressure pump drive motor 38 by three-position four-way valve 35
Move work.
Throttle valve opening is adjusted by electric proportional throttle valve 34, changes its front and rear pressure difference, passes through 3 mouthfuls of control oil of shuttle valve 36
Road and feed back to load-reacting pump 32, load-reacting pump 32 according to Pressure difference feedback before and after electric proportional throttle valve 34, from
It is dynamic to adjust swash plate angle to realize that required load-reacting pumps 32 discharge capacity output.
In addition, to realize the permanent rotating speed output of high-pressure hydraulic pump drive motor 37, it is only necessary to give an electric current to electric ratio section
Flow valve 34.If 2 rotating speed of engine increases at this time, this momentary load sensitive variable pumps the increase of 32 output flows, according to
Throttle flow rate formula understands that pressure difference increases before and after electric proportional throttle valve 34 at this time, inside load-reacting pump 32
Load-sensitive valve is fed back so that overload sensitive variable pumps 32 swash plate angles and reduces, and discharge capacity reduces, so as to reduce pump output stream
Amount realizes constant current output, ensures the permanent rotating speed output of high-pressure hydraulic pump drive motor 37.Similarly, low-pressure pump drive motor is realized
38 rotating speed outputs on demand, need to only adjust electric 34 aperture of proportional throttle valve, and rotating speed influences from 2 rotating speed of engine.
In short, the operation of high-pressure cleaning system 4 and low pressure sprinkler system 5 not suspension chassis 1 drive drive speed influence,
Realize that high-pressure hydraulic pump drive motor 37 determines rotary speed working, the work of 38 variable speed of low-pressure pump drive motor.
Claims (4)
1. a kind of cleaning vehicle of monomotor drive hydraulic system principle including chassis, has engine, hydraulic system, height on chassis
Cleaning system and low pressure sprinkler system are pressed, the bell housing of engine is equipped with Full-power takeoff, it is characterised in that：The full work(
The output terminal of rate power takeoff passes through clutch driving load sensitive variable pump work；
The hydraulic system include fuel tank, load-reacting pump, overflow valve, electricity proportional throttle valve, three-position four-way valve, shuttle valve,
High-pressure hydraulic pump drive motor and low-pressure pump drive motor, the high-pressure hydraulic pump drive motor provide dynamic for high-pressure cleaning system
Power, low-pressure pump drive motor provide power for low pressure sprinkler system；
S mouths of load-reacting pump is connected to fuel tank, the P mouths of Variable plunger pump respectively with the P of overflow valve mouths, electricity ratio
1 mouthful of connection of throttle valve, the T mouths of overflow valve take back fuel tank；2 mouthfuls of the electricity proportional throttle valve and the P mouths company of three-position four-way valve
It connects, the T mouths of three-position four-way valve take back fuel tank, the A mouths of three-position four-way valve 2 mouthfuls with shuttle valve, the P of high-pressure hydraulic pump drive motor respectively
Mouth connection, the B mouths of three-position four-way valve are connected respectively with 1 mouthful of shuttle valve and the P mouths of low-pressure pump drive motor；The 3 of the shuttle valve
Mouth is connected to the X mouths of load-reacting pump；The T mouths of the high-pressure hydraulic pump drive motor and low-pressure pump drive motor, X mouthfuls connect
Oil return box.
2. a kind of cleaning vehicle of monomotor drive hydraulic system principle according to claim 1, it is characterised in that：The clutch
Device is friction plate clutch, and friction plate clutch is carried out control separation and combined by air pressure or hydraulic pressure.
3. a kind of cleaning vehicle of monomotor drive hydraulic system principle according to claim 1, it is characterised in that：Described three
Four-way valve is hydraulic control three-position four-way valve.
4. a kind of cleaning vehicle of monomotor drive hydraulic system principle according to claim 1, it is characterised in that：The high pressure
Cleaning system is arranged on the front end on chassis, and low pressure sprinkler system is arranged on the rear end on chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721083401.3U CN207388871U (en) | 2017-08-28 | 2017-08-28 | A kind of cleaning vehicle of monomotor drive hydraulic system principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721083401.3U CN207388871U (en) | 2017-08-28 | 2017-08-28 | A kind of cleaning vehicle of monomotor drive hydraulic system principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207388871U true CN207388871U (en) | 2018-05-22 |
Family
ID=62418594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721083401.3U Active CN207388871U (en) | 2017-08-28 | 2017-08-28 | A kind of cleaning vehicle of monomotor drive hydraulic system principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207388871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554290A (en) * | 2017-08-28 | 2018-01-09 | 福建龙马环卫装备股份有限公司 | A kind of cleaning vehicle of monomotor drive hydraulic system principle |
| CN109291999A (en) * | 2018-11-01 | 2019-02-01 | 烟台海德专用汽车有限公司 | A kind of monomotor Special vehicle chassis drive system |
-
2017
- 2017-08-28 CN CN201721083401.3U patent/CN207388871U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554290A (en) * | 2017-08-28 | 2018-01-09 | 福建龙马环卫装备股份有限公司 | A kind of cleaning vehicle of monomotor drive hydraulic system principle |
| CN109291999A (en) * | 2018-11-01 | 2019-02-01 | 烟台海德专用汽车有限公司 | A kind of monomotor Special vehicle chassis drive system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 364000 No. 42, Longteng South Road, Donghua community, Dongxiao Town, Xinluo District, Longyan City, Fujian Province Patentee after: Fulongma Group Co.,Ltd. Address before: 364000 Longyan Economic Development Zone, Longyan City, Fujian Province Patentee before: FUJIAN LONGMA ENVIRONMENTAL SANITATION EQUIPMENT Co.,Ltd. |