CN102915049B - Compression type garbage truck pressure control device - Google Patents
Compression type garbage truck pressure control device Download PDFInfo
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- CN102915049B CN102915049B CN201210425515.7A CN201210425515A CN102915049B CN 102915049 B CN102915049 B CN 102915049B CN 201210425515 A CN201210425515 A CN 201210425515A CN 102915049 B CN102915049 B CN 102915049B
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Abstract
The invention belongs to garbage truck equipment technical field, disclose a kind of compression type garbage truck pressure control device.Described pressure control device, several oil cylinders comprising hydraulic pump, multiple directional control valve, Programmable Logic Controller and be connected respectively with multiple directional control valve; The connection oil circuit of multiple directional control valve and each oil cylinder is respectively arranged with pressure transducer, for detecting the oil pressure value on each connection oil circuit, and when the oil pressure that pressure transducer detects on the connection oil circuit at its place reaches the setup pressure value of described pressure transducer, this pressure transducer is connected and is sent signal to described Programmable Logic Controller; Multiple directional control valve is by Controlled by Programmable Controller.In the present invention, the conversion of each cylinder action is by pressure controlled, there will not be because deadline of certain action and setting-up time inconsistent, cause next group oil cylinder easily to occur waiting for or shifting to an earlier date phenomenon, automaticity is high, improves the whole work efficiency of compression type garbage truck.
Description
Technical field
The invention belongs to garbage truck equipment technical field, be specifically related to a kind of pressure control device being applicable to compression type garbage truck.
Background technology
Compression type garbage truck, has the advantages that to receive fortune, maneuverability fast and avoid secondary pollution, becomes main force's vehicle of environmental sanitation vehicles.Its task is the compressing mechanism utilizing self to be equipped with, and by the inside of garbage-compressing to compartment, is transported to garbage disposal plant, then rubbish is released compartment.At present, the compression type garbage truck on environmental sanitation market, mainly consists of the following components: the composition such as automobile chassis, compartment, rushing board mechanism, hopper, the prime machine, hydraulic pressure, automatically controlled and backup system, the prime machine inside is provided with slide plate and scraper component.
Wherein, the filling of compression type garbage truck, compression and the action such as discharging are all realized by hydraulic control system.Current compression type garbage truck on the market, hydraulic control system is mostly all control the interval of each mechanism action and order by time or travel switch.Because the roughness of engine is fixed, the fluctuation of gear pump pressure and flow, oil cylinder is caused to stretch out velocity variations, the Time Inconsistency of deadline and setting, next group oil cylinder action is caused to occur waiting for or shifting to an earlier date phenomenon, each mechanism can not carry out complete operation according to the requirement preset, and have impact on the service efficiency of car load.
Based on this, need to propose a kind of new control mode, make up the time or travel switch mode controls brought drawback.
Summary of the invention
The object of the invention is to the pressure control device proposing a kind of compression type garbage truck, can solve the problems of the technologies described above very well, improve the work efficiency of garbage truck.
To achieve these goals, the technical scheme adopted is in the present invention:
Compression type garbage truck pressure control device, several oil cylinders comprising hydraulic pump, multiple directional control valve, Programmable Logic Controller and be connected respectively with described multiple directional control valve; The connection oil circuit of multiple directional control valve and each oil cylinder is respectively arranged with pressure transducer, for detecting the oil pressure value on each connection oil circuit, and when the oil pressure that pressure transducer detects on the connection oil circuit at its place reaches the setup pressure value of described pressure transducer, this pressure transducer is connected and is sent signal to described Programmable Logic Controller; Described multiple directional control valve is by described Controlled by Programmable Controller.
Further, described Programmable Logic Controller adopts PLC or singlechip controller.
Further, described oil cylinder comprise elevating ram, turn over a barrel oil cylinder, scraper plate oil cylinder, skateboard tank and push pedal oil cylinder.
Further, the oil return circuit of described elevating ram is provided with bidirectional hydraulic lock, the oil return circuit section between described elevating ram and described bidirectional hydraulic lock is provided with one-way throttle valve.
Advantage of the present invention is:
Of the present invention and compression type garbage truck pressure control device, be provided with multiple directional control valve, this multiple directional control valve is connected to several oil cylinders, the connection oil circuit of multiple directional control valve and each oil cylinder is respectively arranged with pressure transducer, for detecting the oil pressure value on each connection oil circuit, during the first group oil cylinder release, oil pressure raises, be arranged on the pressure transducer on the first group oil cylinder connection oil circuit, after the oil pressure detecting on described connection oil circuit reaches setup pressure value, this pressure transducer is connected and is sent signal to Programmable Logic Controller, Programmable Logic Controller is according to the sequence of movement set in advance, instruction is sent to corresponding multiple directional control valve, control the action of next group oil cylinder, the conversion of each cylinder action is by pressure controlled, there will not be because deadline of certain action and setting-up time inconsistent, the wait causing next group oil cylinder easily to occur or in advance phenomenon, automaticity is high, improve the whole work efficiency of compression type garbage truck.
As a kind of optimal way of the present invention, the oil return circuit of elevating ram is provided with bidirectional hydraulic lock, the oil return circuit section between described elevating ram and described bidirectional hydraulic lock is provided with one-way throttle valve.If unexpected loss appears in hydraulic system, such as oil pipe burst, oily joint leakage of oil cause oil pressure too low; the setting of bidirectional hydraulic lock; elevating ram and the prime machine that carries thereof all can not be declined suddenly, initiatively protection can be provided to the environmental sanitation personnel operated and vehicle.
Accompanying drawing explanation
Fig. 1 is the structural representation of compression type garbage truck pressure control device in the present invention;
Wherein, 1-hydraulic pump;
2-multiple directional control valve;
3-scraper plate oil cylinder;
4-pressure transducer;
5-skateboard tank;
6-elevating ram;
7-bidirectional hydraulic lock;
8-one-way throttle valve.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described:
Embodiment
Compression type garbage truck pressure control device, several oil cylinders comprising hydraulic pump 1, multiple directional control valve 2, Programmable Logic Controller and be connected respectively with described multiple directional control valve, preferably, this Programmable Logic Controller adopts PLC or singlechip controller; The connection oil circuit of multiple directional control valve and each oil cylinder is respectively arranged with pressure transducer, for detecting the oil pressure value on each connection oil circuit, and when the oil pressure that pressure transducer detects on the connection oil circuit at its place reaches the setup pressure value of described pressure transducer, this pressure transducer is connected and is sent signal to described Programmable Logic Controller; Described multiple directional control valve is by described Controlled by Programmable Controller.
Described oil cylinder comprises elevating ram, turns over a barrel oil cylinder, scraper plate oil cylinder, skateboard tank and push pedal oil cylinder.
The some work process of compression type garbage truck pressure control device is described for scraper plate oil cylinder and skateboard tank below:
After scraper plate oil cylinder 3 i.e. the first group oil cylinder release, oil pressure raises, be arranged on after scraper plate oil cylinder 3 pressure transducer 4 connected on oil circuit detects that the scraper plate oil cylinder oil pressure connected on oil circuit reaches setup pressure value in advance, pressure transducer 4 is connected and is sent signal to Programmable Logic Controller, Programmable Logic Controller receives described signal and sends instruction to multiple directional control valve 2, controlling skateboard tank 5 is next group oil cylinder action, because scraper plate oil cylinder 3 and the action conversion of skateboard tank 5 are by pressure controlled, there will not be because deadline of certain action and setting-up time inconsistent, the wait causing next group oil cylinder easily to occur or in advance phenomenon, automaticity is high, improve the whole work efficiency of compression type garbage truck.
As a kind of preferred implementation, the oil return circuit of elevating ram 6 is provided with bidirectional hydraulic lock 7, the oil return circuit section between elevating ram 6 and bidirectional hydraulic lock 7 is provided with one-way throttle valve 8.Its roughly principle of work be:
After environmental sanitation personnel make the prime machine give rise to certain altitude by manipulation operating rod or automatic button, turn over the sequence of movement action successively according to Programmable Logic Controller of a barrel oil cylinder, scraper plate oil cylinder and skateboard tank, push pedal oil cylinder drives push pedal that the rubbish compressed is released after compartment forward direction.Unload in whole process at rubbish, due to the oil return circuit of elevating ram being provided with bidirectional hydraulic lock and one-way throttle valve, oil return flow velocity can be made balanced, namely elevating ram 6 piston rod regains speed equilibrium, the local concussion problem of impacting when avoiding occurring that the prime machine falls, when the external control hydraulic oil of certain pressure enters bidirectional hydraulic lock outside control mouth, main valve plug is opened, and oil return line is through.If unexpected loss appears in hydraulic system, such as oil pipe burst, oily joint leakage of oil cause oil pressure too low; the setting of bidirectional hydraulic lock; elevating ram and the prime machine that carries thereof all can not be declined suddenly, initiatively protection can be provided to the environmental sanitation personnel operated and vehicle.
Claims (4)
1. compression type garbage truck pressure control device, is characterized in that, several oil cylinders comprising hydraulic pump, multiple directional control valve, Programmable Logic Controller and be connected respectively with described multiple directional control valve; The connection oil circuit of multiple directional control valve and each oil cylinder is respectively arranged with pressure transducer, for detecting the oil pressure value on each connection oil circuit, and when the oil pressure that pressure transducer detects on the connection oil circuit at its place reaches the setup pressure value of described pressure transducer, this pressure transducer is connected and is sent signal to described Programmable Logic Controller, Programmable Logic Controller is according to the sequence of movement set in advance, send instruction to corresponding multiple directional control valve, control the action of next group oil cylinder; Described multiple directional control valve is by described Controlled by Programmable Controller; During the first group oil cylinder release, oil pressure raises, after the pressure transducer be arranged on the first group oil cylinder connection oil circuit detects that the oil pressure on described connection oil circuit reaches setup pressure value, this pressure transducer is connected and is sent signal to Programmable Logic Controller, Programmable Logic Controller sends instruction according to the sequence of movement set in advance to corresponding multiple directional control valve, controls the action of next group oil cylinder.
2. compression type garbage truck pressure control device according to claim 1, is characterized in that, described Programmable Logic Controller adopts PLC or singlechip controller.
3. compression type garbage truck pressure control device according to claim 1 and 2, is characterized in that, described oil cylinder comprises elevating ram, turns over a barrel oil cylinder, scraper plate oil cylinder, skateboard tank and push pedal oil cylinder.
4. compression type garbage truck pressure control device according to claim 3, it is characterized in that, the oil return circuit of described elevating ram is provided with bidirectional hydraulic lock, the oil return circuit section between described elevating ram and described bidirectional hydraulic lock is provided with one-way throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425515.7A CN102915049B (en) | 2012-10-30 | 2012-10-30 | Compression type garbage truck pressure control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425515.7A CN102915049B (en) | 2012-10-30 | 2012-10-30 | Compression type garbage truck pressure control device |
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| CN102915049A CN102915049A (en) | 2013-02-06 |
| CN102915049B true CN102915049B (en) | 2015-09-09 |
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| CN201210425515.7A Active CN102915049B (en) | 2012-10-30 | 2012-10-30 | Compression type garbage truck pressure control device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103662548B (en) * | 2013-12-12 | 2016-02-03 | 长沙中联重科环卫机械有限公司 | Garbage compression truck and power control method, controller and control system thereof |
| CN106502089A (en) * | 2016-12-27 | 2017-03-15 | 河南森源重工有限公司 | A kind of redundancy control method of compression type garbage truck loading process |
| CN106640799B (en) * | 2017-02-16 | 2018-03-16 | 数源科技股份有限公司 | A kind of energy-saving upper dress system of pure electric compression type garbage truck |
| CN114233709B (en) * | 2021-12-30 | 2024-07-05 | 启航汽车有限公司 | Hydraulic device for compression type garbage truck and compression type garbage truck |
| CN114810701B (en) * | 2022-04-26 | 2024-10-22 | 徐州徐工环境技术有限公司 | Single-pump flow priority and differential control hydraulic system, control method and compression type garbage truck |
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