CN111852970B - Efficient energy-saving hydraulic system of kitchen garbage truck - Google Patents
Efficient energy-saving hydraulic system of kitchen garbage truck Download PDFInfo
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- CN111852970B CN111852970B CN202010820074.5A CN202010820074A CN111852970B CN 111852970 B CN111852970 B CN 111852970B CN 202010820074 A CN202010820074 A CN 202010820074A CN 111852970 B CN111852970 B CN 111852970B
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- control valve
- oil
- oil cylinder
- cylinder
- lifting
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 190
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 239000010806 kitchen waste Substances 0.000 claims 8
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 15
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
Landscapes
- 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)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a high-efficiency energy-saving hydraulic system of a kitchen garbage truck, which comprises: a hydraulic oil tank; a first pump and a second pump; a multiway valve; the scheme comprises a cover plate oil cylinder, a lifting barrel clamping oil cylinder, a lifting barrel lifting oil cylinder, a lifting barrel overturning oil cylinder, a push plate oil cylinder, a back door opening and closing oil cylinder and the like which are connected with a multi-way valve oil path, wherein the actions of a car washing gun motor, the cover plate oil cylinder, the lifting barrel clamping oil cylinder, the lifting barrel lifting oil cylinder and the lifting barrel overturning oil cylinder are controlled through a first pump; the second pump controls the pendulum oil cylinder to act; when the lifting mechanism and the pendulum mechanism perform compound actions, the two single pumps respectively and independently control the lifting barrel oil cylinder and the pendulum oil cylinder, so that mutual interference is avoided; when the push plate or the back door moves independently, the two single pumps are combined to realize rapid and efficient movement, the set of hydraulic system can realize double-pump combination of any appointed movement, and likewise can output the flow of the single pump of any appointed movement, and can realize flow matching of double pumps and three speeds, thereby realizing high efficiency and energy saving of the system.
Description
Technical Field
The invention relates to the technical field of sanitation truck hydraulic systems, in particular to a high-efficiency energy-saving hydraulic system of a kitchen garbage truck.
Background
The main action parts of the kitchen garbage truck comprise six types of push plates, lifting mechanisms, pendulum mechanisms, rear door latch mechanisms, cover plates and car washing guns, and all the parts are driven by a hydraulic system of the vehicle.
At present, a hydraulic circuit of the domestic kitchen garbage truck basically adopts a single pump system, and generally, a pendulum mechanism and a lifting mechanism do not carry out compound linkage. If the compound action of the pendulum mechanism and the lifting mechanism is realized, a priority valve group is additionally added to carry out the split-flow compound action with pressure compensation; and because the single pump displacement is determined by large flow actions (such as push plate actions and back door actions), the pendulum mechanism, the lifting barrel mechanism, the cover plate and the car washing gun do not need too large flow, and a throttle valve is additionally added to throttle and reduce speed. Doing so is neither economical nor energy efficient.
Disclosure of Invention
Aiming at the situation of the prior art, the invention aims to provide the efficient energy-saving hydraulic system of the kitchen garbage truck, which is reliable in implementation, high in hydraulic action efficiency and flexible in operation.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
An efficient energy-saving hydraulic system of a kitchen garbage truck, comprising:
The hydraulic oil tank is used for providing hydraulic oil;
the input end of the first pump is connected with a hydraulic oil tank pipeline;
The input end of the second pump is connected with the hydraulic oil tank pipeline;
The multi-way valve comprises a control valve I, a control valve II, a control valve III, a control valve IV, a control valve V, a control valve VI and a control valve VII, wherein the output end of a first pump is sequentially connected with oil inlets P1 of the control valve I, the control valve II, the control valve III and the control valve IV through oil inlet pipelines, the output end of a second pump is sequentially connected with oil inlets P2 of the control valve V, the control valve VI and the control valve VII through oil inlet pipelines, the control valve V, the control valve VI and the control valve VII are provided with oil return pipelines a and the oil return pipelines a are connected to a hydraulic oil tank, and the control valve I, the control valve II, the control valve III and the control valve IV are provided with oil return pipelines b which form two branches and are respectively connected to the oil inlet pipelines of the control valve VI and the control valve VII;
the car washing gun motor is provided with two connecting ports and is respectively connected with an oil port A1 and an oil port B1 of the control valve I;
The rodless cavity of the cover plate oil cylinder is connected with an oil port A2 of the control valve II, and the rod-containing cavity of the cover plate oil cylinder is connected with an oil port B2 of the control valve II;
The lifting barrel clamping oil cylinder is characterized in that a rodless cavity of the lifting barrel clamping oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel clamping oil cylinder is connected with an oil port B3 of the control valve III;
the lifting cylinder of the lifting barrel is connected with an oil way of the clamping cylinder of the lifting barrel in parallel, a rodless cavity of the lifting cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting cylinder is connected with an oil port B3 of the control valve III;
the rodless cavity of the lifting barrel overturning oil cylinder is connected with an oil port A4 of the control valve IV, and the rod-containing cavity of the lifting barrel overturning oil cylinder is connected with an oil port B4 of the control valve IV;
the push plate oil cylinder is provided with a rod cavity which is connected with an oil port A5 of the control valve V, and the rodless cavity is connected with an oil port B5 of the control valve V;
The rear door opening and closing oil cylinder is provided with a rod cavity which is connected with an oil port A6 of the control valve VI, and a rodless cavity which is connected with an oil port B6 of the control valve VI;
the bolt oil cylinder is connected with an oil way of the back door opening and closing oil cylinder in parallel, a rodless cavity of the bolt oil cylinder is connected with an oil port A6 of the control valve VI, and a rod cavity of the bolt oil cylinder is connected with an oil port B6 of the control valve VI;
The pendulum oil cylinder is provided with a rod cavity which is connected with an oil port A7 of the control valve VII, and the rodless cavity is connected with an oil port B7 of the control valve VI;
the hydraulic lock is connected to the pipelines of the oil port A6 and the oil port B6 of the control valve VI, which are connected with the back door opening and closing oil cylinder and the bolt oil cylinder.
As a possible implementation manner, the control valve i, the control valve ii, the control valve iii and the control valve iv are all further connected with a first overflow valve; the control valve V, the control valve VI and the control valve VII are also connected with a second overflow valve, and the first overflow valve and the second overflow valve are connected to a return pipeline a through pipelines.
As a possible implementation manner, a liquid level meter is further arranged in the hydraulic oil tank.
As a possible embodiment, the return line a is further provided with a return oil filter at one end connected to the hydraulic tank.
As a possible implementation manner, further, a pipeline of which the input end is connected with the hydraulic oil tank and a pipeline of which the input end is connected with the hydraulic oil tank are integrated, and an oil suction filter is arranged on the pipeline.
As a preferred embodiment, the oil port of the control valve v connected to the second overflow valve is connected to the oil port A5 of the control valve v through a pipeline, and a priority valve is arranged on the pipeline.
As a preferred embodiment, the lift cylinder and the lift cylinder are preferably a pair.
As a preferred implementation mode, the latch oil cylinder and the back door opening and closing oil cylinder are preferably a pair.
As a preferred embodiment, the pendulum oil cylinders are preferably a pair.
The scheme adopts a double-pump system, and optimally designs the multi-way valve to realize the compound action of the kitchen garbage truck pendulum mechanism and the lifting mechanism; the push plate and the back door oil way are subjected to double-pump confluence; the lifting barrel oil cylinder, the cover plate oil cylinder and the car washing gun motor are driven by the same single pump; because the pendulum oil cylinder is compared with the lifting barrel oil cylinder and the like, the difference of the required flow is large, and the other single pump is adopted for driving. Under the precondition that the flow is not throttled and slowed down and an electric control converging valve is not externally connected, the flow matching of the double pumps and the three speeds can be realized. Thereby realizing high efficiency and energy saving of the system.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: the hydraulic system has the advantages that the first pump is used for controlling the actions of the car washing gun motor, the cover plate oil cylinder, the lifting barrel clamping oil cylinder, the lifting barrel lifting oil cylinder and the lifting barrel overturning oil cylinder; the second pump controls the pendulum oil cylinder to act; when the lifting mechanism and the pendulum mechanism perform compound actions, the two single pumps respectively and independently control the lifting barrel oil cylinder and the pendulum oil cylinder, so that mutual interference is avoided; when the push plate or the back door moves independently, the two single pumps are combined, so that the rapid and efficient movement is realized. The hydraulic system is not externally connected with an electric control converging valve, can realize double-pump converging of any appointed action only by optimizing a traditional multi-way valve, can output single-pump flow of any appointed action as well, and can realize flow matching of double pumps and three speeds, thereby realizing high efficiency and energy saving of the system.
Drawings
The invention will be further elucidated with reference to the drawings and the detailed description below: carrying out
FIG. 1 is a schematic diagram of a schematic connection principle of a hydraulic system according to the present invention;
FIG. 2 is a schematic diagram of components of a kitchen garbage truck corresponding to a hydraulic system according to the present invention;
fig. 3 is a schematic hydraulic schematic diagram of the multiway valve according to the present invention.
Detailed Description
Referring to fig. 1 in combination with fig. 2, the efficient energy-saving hydraulic system of the kitchen garbage truck of the present invention includes:
the hydraulic oil tank 4 is used for providing hydraulic oil, and in order to facilitate the liquid level monitoring of the hydraulic oil, a liquid level meter 6 is further arranged in the hydraulic oil tank 4;
the input end of the first pump 1 is connected with a hydraulic oil tank 4 through a pipeline;
the input end of the second pump 3 is connected with a hydraulic oil tank 4 through a pipeline;
The multi-way valve 7 comprises a control valve I71, a control valve II 72, a control valve III 73, a control valve IV 74, a control valve V75, a control valve VI 76 and a control valve VII 77, wherein the output end of the first pump 1 is sequentially connected with oil inlets P1 of the control valve I71, the control valve II 72, the control valve III 73 and the control valve IV 74 through oil inlet pipelines, the output end of the second pump 3 is sequentially connected with oil inlets P2 of the control valve V75, the control valve VI 76 and the control valve VII 77 through oil inlet pipelines, the control valve V75, the control valve VI 76 and the control valve VII 77 are provided with an oil return pipeline a and the oil return pipeline a is connected to the hydraulic oil tank 4 (specifically, the multi-way valve 7 is provided with one oil return port T independently and then oil returns through the total oil return pipeline 501), and the control valve I71, the control valve II 72, the control valve III 73 and the control valve IV 74 are provided with oil return pipelines b and the oil return pipelines b are respectively connected to the oil inlet pipelines of the control valve VI 76 and the control valve VII 77;
A gun motor 17 having two connection ports and connected to the oil ports A1 and B1 of the control valve i 71, respectively;
The cover plate oil cylinder 16 is provided with a rodless cavity connected with an oil port A2 of the control valve II 72, and is provided with a rod cavity connected with an oil port B2 of the control valve II 72;
the lifting barrel clamping cylinder 15 is provided with a rodless cavity connected with an oil port A3 of the control valve III 73, and a rod cavity connected with an oil port B3 of the control valve III 73;
the lifting cylinder 14 of the lifting barrel is connected with the oil way of the clamping cylinder 15 of the lifting barrel in parallel, a rodless cavity of the lifting cylinder is connected with the oil port A3 of the control valve III 73, and a rod cavity of the lifting cylinder is connected with the oil port B3 of the control valve III 73;
The lifting barrel overturning oil cylinder 13 is provided with a rodless cavity connected with an oil port A4 of the control valve IV 74, and a rod cavity connected with an oil port B4 of the control valve IV 74; in this embodiment, as a preferred embodiment, the lift cylinder 14 and the lift cylinder 15 are preferably a pair.
The push plate cylinder 12 is provided with a rod cavity which is connected with an oil port A5 of the control valve V75, and a rodless cavity which is connected with an oil port B5 of the control valve V75;
The rear door opening and closing oil cylinder 10 is provided with a rod cavity which is connected with an oil port A6 of the control valve VI 76, and a rodless cavity which is connected with an oil port B6 of the control valve VI 76;
The latch oil cylinder 9 is connected with an oil way of the back door opening and closing oil cylinder 10 in parallel, a rodless cavity of the latch oil cylinder 9 is connected with an oil port A6 of the control valve VI 76, a rod cavity of the latch oil cylinder is connected with an oil port B6 of the control valve VI 76, and in the embodiment, as a preferred implementation mode, the latch oil cylinder 9 and the back door opening and closing oil cylinder 10 are both a pair;
The pendulum oil cylinder 8 is provided with a rod cavity which is connected with an oil port A7 of the control valve VII 77, and a rodless cavity which is connected with an oil port B7 of the control valve VI 76; as a preferred embodiment, the pendulum oil cylinders 8 are preferably a pair;
The hydraulic lock 11 is connected to the pipelines of the rear door opening and closing oil cylinder 10 and the bolt oil cylinder 9, which are connected to the oil port A6 and the oil port B6 of the control valve VI 76, and the hydraulic lock 11 is a bidirectional hydraulic lock and is used for ensuring the operation stopping state of the rear door opening and closing oil cylinder 10 and the bolt oil cylinder 9 and preventing the dead weight from falling.
Wherein, as a possible implementation manner, the control valve I71, the control valve II 72, the control valve III 73 and the control valve IV 74 are all further connected with a first overflow valve; the control valve V75, the control valve VI 76 and the control valve VII 77 are also connected with a second overflow valve, and the first overflow valve and the second overflow valve are connected to a return pipeline a through pipelines; as a preferred embodiment, the control valve v 75 is connected to the port of the second relief valve and the port A5 of the control valve v 75 via a line, and the priority valve 20 is provided on the line.
In addition, in order to avoid the suction of impurities, as a possible implementation manner, the oil return pipeline a is further provided with an oil return filter 5 at one end connected to the hydraulic oil tank; as a possible embodiment, the line connecting the input of the first pump 1 to the hydraulic oil tank 4 and the line connecting the input of the second pump 3 to the hydraulic oil tank 4 are integrated, and the line is provided with the oil suction filter 2.
Referring to fig. 3 again, which is a schematic diagram of the multiway valve 7, the common oil duct 102 of the first to fourth combined working sheets is connected to the P channels (103+105+106) of the fifth to seventh combined working sheets for double pump confluence; a 104 oil duct is newly added in the working sheets of the fifth and sixth links, so that when the first to fourth links do not work, the pump releases pressure and returns to the oil tank; the 105 oil duct is broken and canceled, so that the seventh joint working piece can be independently supplied with oil by another single pump.
While the present invention has been described with respect to the above embodiments, it will be apparent to those skilled in the art from this disclosure that many changes, modifications, substitutions and variations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. High-efficient energy-saving hydraulic system of kitchen garbage truck, its characterized in that: it comprises the following steps:
The hydraulic oil tank is used for providing hydraulic oil;
the input end of the first pump is connected with a hydraulic oil tank pipeline;
The input end of the second pump is connected with the hydraulic oil tank pipeline;
The multi-way valve comprises a control valve I, a control valve II, a control valve III, a control valve IV, a control valve V, a control valve VI and a control valve VII, wherein the output end of a first pump is sequentially connected with oil inlets P1 of the control valve I, the control valve II, the control valve III and the control valve IV through oil inlet pipelines, the output end of a second pump is sequentially connected with oil inlets P2 of the control valve V, the control valve VI and the control valve VII through oil inlet pipelines, the control valve V, the control valve VI and the control valve VII are provided with oil return pipelines a and the oil return pipelines a are connected to a hydraulic oil tank, and the control valve I, the control valve II, the control valve III and the control valve IV are provided with oil return pipelines b which form two branches and are respectively connected to the oil inlet pipelines of the control valve VI and the control valve VII;
the car washing gun motor is provided with two connecting ports and is respectively connected with an oil port A1 and an oil port B1 of the control valve I;
The rodless cavity of the cover plate oil cylinder is connected with an oil port A2 of the control valve II, and the rod-containing cavity of the cover plate oil cylinder is connected with an oil port B2 of the control valve II;
The lifting barrel clamping oil cylinder is characterized in that a rodless cavity of the lifting barrel clamping oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel clamping oil cylinder is connected with an oil port B3 of the control valve III;
the lifting cylinder of the lifting barrel is connected with an oil way of the clamping cylinder of the lifting barrel in parallel, a rodless cavity of the lifting cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting cylinder is connected with an oil port B3 of the control valve III;
the rodless cavity of the lifting barrel overturning oil cylinder is connected with an oil port A4 of the control valve IV, and the rod-containing cavity of the lifting barrel overturning oil cylinder is connected with an oil port B4 of the control valve IV;
the push plate oil cylinder is provided with a rod cavity which is connected with an oil port A5 of the control valve V, and the rodless cavity is connected with an oil port B5 of the control valve V;
The rear door opening and closing oil cylinder is provided with a rod cavity which is connected with an oil port A6 of the control valve VI, and a rodless cavity which is connected with an oil port B6 of the control valve VI;
the bolt oil cylinder is connected with an oil way of the back door opening and closing oil cylinder in parallel, a rodless cavity of the bolt oil cylinder is connected with an oil port A6 of the control valve VI, and a rod cavity of the bolt oil cylinder is connected with an oil port B6 of the control valve VI;
The pendulum oil cylinder is provided with a rod cavity which is connected with an oil port A7 of the control valve VII, and the rodless cavity is connected with an oil port B7 of the control valve VI;
the hydraulic lock is connected to the pipelines of the oil port A6 and the oil port B6 of the control valve VI, which are connected with the back door opening and closing oil cylinder and the bolt oil cylinder.
2. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 1, wherein: the control valve I, the control valve II, the control valve III and the control valve IV are also connected with a first overflow valve; the control valve V, the control valve VI and the control valve VII are also connected with a second overflow valve, and the first overflow valve and the second overflow valve are connected to a return pipeline a through pipelines.
3. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 1, wherein: the hydraulic oil tank is also internally provided with a liquid level meter.
4. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 1, wherein: and one end of the oil return pipeline a connected to the hydraulic oil tank is also provided with an oil return filter.
5. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 1, wherein: the pipeline that the input of first pump and hydraulic tank are connected and the pipeline that the input of second pump and hydraulic tank are connected are gathered into one, and be equipped with the oil absorption oil filter on this pipeline.
6. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 2, wherein: the control valve V is connected to the oil port of the second overflow valve and the oil port A5 of the control valve V through a pipeline, and a priority valve is arranged on the pipeline.
7. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 2, wherein: the lifting cylinder and the clamping cylinder are both a pair.
8. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 2, wherein: the latch oil cylinder and the back door opening and closing oil cylinder are both a pair.
9. The efficient and energy-saving hydraulic system of a kitchen waste truck according to claim 2, wherein: the pendulum oil cylinders are a pair.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010820074.5A CN111852970B (en) | 2020-08-14 | 2020-08-14 | Efficient energy-saving hydraulic system of kitchen garbage truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010820074.5A CN111852970B (en) | 2020-08-14 | 2020-08-14 | Efficient energy-saving hydraulic system of kitchen garbage truck |
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| CN111852970A CN111852970A (en) | 2020-10-30 |
| CN111852970B true CN111852970B (en) | 2024-08-09 |
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| CN212563875U (en) * | 2020-08-14 | 2021-02-19 | 福建龙马环卫装备股份有限公司 | Efficient energy-saving hydraulic system of kitchen garbage truck |
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| CN110307199B (en) * | 2018-03-27 | 2021-08-10 | 比亚迪股份有限公司 | Hydraulic control system |
| CN108502816B (en) * | 2018-05-08 | 2023-07-14 | 安徽合力股份有限公司 | Bypass type energy regeneration forklift hydraulic system |
| CN109538555B (en) * | 2018-12-04 | 2023-10-13 | 潍柴(扬州)特种车有限公司 | Energy-saving hydraulic system of garbage compression vehicle |
| CN109779987B (en) * | 2018-12-27 | 2020-07-31 | 长沙普罗科环境装备有限责任公司 | Road sweeper and hydraulic driving system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212563875U (en) * | 2020-08-14 | 2021-02-19 | 福建龙马环卫装备股份有限公司 | Efficient energy-saving hydraulic system of kitchen garbage truck |
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