CN115258470A - Garbage compression vehicle and scraping slide plate linkage system thereof - Google Patents
Garbage compression vehicle and scraping slide plate linkage system thereof Download PDFInfo
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- CN115258470A CN115258470A CN202110486285.4A CN202110486285A CN115258470A CN 115258470 A CN115258470 A CN 115258470A CN 202110486285 A CN202110486285 A CN 202110486285A CN 115258470 A CN115258470 A CN 115258470A
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- valve
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- differential pressure
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- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F2003/006—Constructional features relating to the tank of the refuse vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
- B65F2003/146—Sensors, e.g. pressure sensors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuse-Collection Vehicles (AREA)
Abstract
The invention discloses a garbage compression truck and a scraping and sliding plate linkage system thereof, wherein the system comprises a scraper oil cylinder, a sliding plate oil cylinder, a three-position four-way electromagnetic valve, a three-position four-way hydraulic control valve and a differential pressure control device, wherein two working ports of the three-position four-way electromagnetic valve are respectively communicated with two working ports of the scraper oil cylinder; according to the linkage system, the pressure difference output control oil of the rod cavity and the rodless cavity when the scraper oil cylinder is completely extended or retracted is utilized to control the three-position four-way hydraulic control valve, the phenomenon that the scraper oil cylinder state detection device fails due to the fact that the working environment is dirty and covered by garbage and dirt can be completely avoided, and the working stability of the scraping and sliding mechanism is improved.
Description
Technical Field
The invention relates to the technical field of garbage disposal equipment, in particular to a garbage compression truck and a scraping and sliding plate linkage system thereof.
Background
The linkage of the scraping sliding plate of the existing garbage compression truck is realized by sending a control signal after a position sensor (proximity switch) senses a sensing block, as shown in figure 1, the sliding plate 01 is hinged with a scraping plate 02, a piston rod of a scraping plate oil cylinder 03 is hinged on the sliding plate 01, a cylinder barrel of the scraping plate oil cylinder 03 is hinged on the scraping plate 02, the scraping plate 02 can rotate around the sliding plate 01 under the driving of the scraping plate oil cylinder 03, a sensor 05 is installed on the sliding plate 01, and sensor sensing plates 06 are installed at two ends of the cylinder barrel of the scraping plate oil cylinder 03. When the sensor 05 senses the sensing plate 06, the sliding plate cylinder 04 can extend out, and when the sensor 05 senses the sensing plate 06, the sliding plate cylinder 04 can retract, so that the sensor and the sensing plate in the sliding plate scraping linkage system are arranged on the sliding scraping mechanism, and the sliding scraping mechanism has the main function of filling and compressing garbage in the garbage compression vehicle hopper, so that the working environment is very dirty and messy, the sensor is easily covered by the garbage and fails, and the sliding scraping mechanism is abnormal in work, and the working efficiency of garbage collection and transportation is seriously influenced.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a scraper and sliding plate linkage system of a garbage compacting truck, so as to prevent a sensor for detecting the working state of a scraper cylinder from being covered by garbage and becoming invalid, improve the reliability of the garbage compacting truck in a dirty environment, and ensure the garbage collecting and transporting operation to be performed normally.
The invention also provides a garbage compression vehicle based on the scraping and sliding plate linkage system of the garbage compression vehicle.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a rubbish compression car scrapes slide linkage system, includes scraper blade hydro-cylinder, slide hydro-cylinder, tribit four-way solenoid valve, tribit four-way hydraulic control valve and pressure differential controlling means, two workports of tribit four-way solenoid valve respectively with two workports of scraper blade hydro-cylinder intercommunication, two workports of tribit four-way hydraulic control valve respectively with two workports of slide hydro-cylinder intercommunication, pressure differential controlling means get the hydraulic fluid port with scraper blade hydro-cylinder intercommunication, pressure differential controlling means's oil-out respectively with two control mouth of tribit four-way hydraulic control valve are connected, pressure differential controlling means is used for output control oil is in order to control when scraper blade hydro-cylinder is in complete extension state and complete retraction state tribit switches to left position or right position to follow the tribit four-way hydraulic control valve.
Preferably, the differential pressure control device includes two differential pressure signaling modules, the differential pressure signaling module includes a cartridge valve and a check valve, the cartridge valve and the check valve are connected in series between two working ports of the differential pressure signaling module as an oil taking port of the differential pressure control device, the check valve is located on one side of a working chamber of the cartridge valve away from a control chamber of the cartridge valve, the check valve is used for conducting in a one-way manner from the scraper cylinder to the cartridge valve, oil outlets of the working chambers of the cartridge valves of the two differential pressure signaling modules are used as oil outlets of the differential pressure control device and are respectively connected with two control ports of the three-position four-way hydraulic control valve, two working ports of one of the two differential pressure signaling modules are respectively communicated with a rod chamber and a rodless chamber of the scraper cylinder when the scraper cylinder is in a fully extended state, and two working ports of the other of the two differential pressure signaling modules are respectively communicated with the rod chamber and the rodless chamber of the scraper cylinder when the scraper cylinder is in a fully retracted state.
Preferably, the differential pressure signaling module further comprises a throttling element, and the throttling element is connected in parallel to two ends of the cartridge valve.
Preferably, the differential pressure control device comprises a two-position four-way hydraulic control valve, a shuttle valve and two differential pressure signaling modules, the differential pressure signaling module comprises a cartridge valve and a one-way valve, the cartridge valve and the one-way valve are connected in series between two working ports of the differential pressure signaling module serving as an oil taking port of the differential pressure control device, the one-way valve is located on one side, away from a control chamber of the cartridge valve, of the working chamber of the cartridge valve, the one-way valve is used for conducting in a one-way mode from the scraper cylinder to the cartridge valve, oil outlets of the working chambers of the cartridge valves of the two differential pressure signaling modules are respectively connected with two control ports of the two-position four-way hydraulic control valve, two working ports of one of the two differential pressure signaling modules are respectively communicated with a rod chamber and a rodless chamber of the scraper cylinder when the scraper cylinder is in a fully extended state, two working ports of the other one of the two differential pressure signaling modules are respectively communicated with the rod chamber and the rodless chamber of the scraper cylinder when the scraper cylinder is in a fully retracted state, two inlets of the shuttle valve are respectively connected with two working ports of the three-position four-way valve, and an outlet of the shuttle valve is connected with an inlet of the two-position four-way valve.
Preferably, the differential pressure signaling module further comprises a throttling element, and the throttling element is connected in parallel to two ends of the cartridge valve.
Preferably, the scraper cylinder system further comprises a hydraulic control one-way valve, an inlet and an outlet of the hydraulic control one-way valve are connected in series between one working port of the three-position four-way electromagnetic valve and one working port of the scraper cylinder, and a control port of the hydraulic control one-way valve is communicated with the other working port of the three-position four-way electromagnetic valve.
Preferably, the garbage compression vehicle scraper sliding plate linkage system further comprises an instruction acquisition module used for acquiring a user instruction, the instruction acquisition module is connected with a controller of the garbage compression vehicle scraper sliding plate linkage system, and the controller of the garbage compression vehicle scraper sliding plate linkage system controls the three-position four-way electromagnetic valve to be electrified and switched from the middle position to the left position or the right position according to the user instruction acquired by the instruction acquisition module.
A garbage compression vehicle comprises the garbage compression vehicle scraping and sliding plate linkage system.
In order to achieve the purpose, the invention provides a garbage compression vehicle scraping and sliding plate linkage system which comprises a scraper oil cylinder, a sliding plate oil cylinder, a three-position four-way electromagnetic valve, a three-position four-way hydraulic control valve and a pressure difference control device, wherein two working ports of the three-position four-way electromagnetic valve are respectively communicated with two working ports of the scraper oil cylinder; when garbage is filled, the right electromagnet DT2 of the three-position four-way electromagnetic valve is firstly controlled to be powered on, the three-position four-way electromagnetic valve is located at a right working position, the three-position four-way hydraulic control reversing valve is located at a middle position (initial state) or a left working position (last cycle is finished), the sliding plate oil cylinder is held to be pressure, a rod cavity of the scraping plate oil cylinder is connected with an oil pump through the three-position four-way electromagnetic valve, a rodless cavity of the scraping plate oil cylinder is communicated with an oil tank through the three-position four-way electromagnetic valve, the scraping plate oil cylinder retracts, when the scraping plate oil cylinder is completely retracted, the pressure of the rod cavity of the scraping plate oil cylinder is increased to be larger than the pressure in the rod cavity, at the moment, hydraulic oil in the scraping plate oil cylinder is output to a right control port of the three-position four-way hydraulic control valve through a pressure control device, the three-position four-way hydraulic control valve is switched to the right working position, the rod cavity of the sliding plate oil cylinder is communicated with the oil pump through the three-position four-way hydraulic control valve, the rodless cavity of the sliding plate oil cylinder is communicated with the oil tank through the three-position four-position hydraulic control valve, the oil cylinder begins to retract, the sliding plate oil cylinder begins to retract, the opening of the sliding plate is completed, and the sliding plate moves down; then controlling a right electromagnet DT1 of the three-position four-way electromagnetic valve to be electrified, switching the three-position four-way electromagnetic valve to a left working position, connecting a rodless cavity of the scraper oil cylinder with an oil pump through the three-position four-way electromagnetic valve, communicating a rod cavity of the scraper oil cylinder with the oil tank through the three-position four-way electromagnetic valve, extending the scraper oil cylinder, when the scraper oil cylinder completely extends, increasing the pressure of the rodless cavity of the scraper oil cylinder to be larger than the pressure in the rod cavity, outputting hydraulic oil in the scraper oil cylinder to a left control port of the three-position four-way hydraulic control valve through a pressure control device, switching the three-position four-way hydraulic control valve to the left working position, communicating the rodless cavity of the sliding plate oil cylinder with the oil pump through the three-position four-way hydraulic control valve, communicating the rod cavity of the sliding plate oil cylinder with the oil tank through the three-position four-way hydraulic control valve, starting extending the sliding plate oil cylinder, and completing the scraping and the scraping of the scrapes and the garbage and the compression; therefore, the scraping and sliding plate linkage system utilizes the differential pressure output control oil of the rod cavity and the rodless cavity to control the three-position four-way hydraulic control valve connected with the sliding plate oil cylinder when the scraping plate oil cylinder is completely extended or completely retracted, and compared with the structure of a sensor and an induction plate of the existing scraping and sliding plate linkage system, the phenomenon that the scraping plate oil cylinder state detection device fails due to the fact that the working environment is covered by garbage and dirt in a mess mode can be completely avoided, and the working stability of the scraping and sliding mechanism is improved.
The invention also provides a garbage compression vehicle which comprises the garbage compression vehicle scraper sliding plate linkage system, and the garbage compression vehicle scraper sliding plate linkage system has the technical effects, so that the garbage compression vehicle adopting the garbage compression vehicle scraper sliding plate linkage system also has the technical effects, and the details are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a scraper-slide linkage system of a garbage compression truck in the prior art;
FIG. 2 is a schematic view of a garbage compression truck filling process;
FIG. 3 is a schematic structural view of a scraper-slide plate linkage system of a refuse compression vehicle according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a pressure difference signaling module of a scraper-slide linkage system of a refuse compactor according to an embodiment of the present invention;
FIG. 5 is a partial schematic view of a pressure difference signaling module and a scraper cylinder of the scraper slide linkage system of the garbage compression truck according to the embodiment of the present invention;
fig. 6 is a working state diagram of a scraper cylinder of the scraper slide plate linkage system of the refuse compression vehicle provided by the embodiment of the invention.
In fig. 1:
01 is a sliding plate; 02 is a scraper plate; 03 is a scraper oil cylinder; 04 is a slide plate oil cylinder; 05 is a sensor; 06 is an induction plate;
in fig. 2-6:
1 is a sliding plate; 2 is a scraper; 3 is a scraper oil cylinder; 4 is a sliding plate oil cylinder; 5 is a three-position four-way electromagnetic valve; 6 is a three-position four-way hydraulic control valve; 7. 8 is a differential pressure signaling module; 9 is a hydraulic control one-way valve; 10 is a shuttle valve; 11 is a two-position four-way hydraulic control valve; 12 is a cartridge valve; 13 is a throttling element; 14 is a one-way valve.
Detailed Description
The invention has the core that the structure design of the scraper and sliding plate linkage system of the garbage compression vehicle can prevent the sensor for detecting the working state of the scraper cylinder from being covered by garbage to cause failure, improve the reliability of the scraper cylinder in a dirty environment and ensure the normal garbage collection and transportation operation.
The other core of the invention is to provide the garbage compression vehicle based on the scraping and sliding plate linkage system of the garbage compression vehicle.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the application provides a garbage compression vehicle scraper sliding plate linkage system and a garbage compression vehicle, and before explaining the technical scheme provided by the embodiment of the application, the related technology related to the application is firstly explained.
In the correlation technique, scrape smooth mechanism including slide 1 that slides and set up between the hopper of rubbish compression car and dustbin and articulate in slide 1's scraper blade 2, be provided with slide hydro-cylinder 4 between slide 1 and the hopper, be provided with scraper blade hydro-cylinder 3 between scraper blade 2 and slide 1, the both ends of scraper blade hydro-cylinder 3 are articulated respectively with scraper blade 2 and slide 1.
In an initial state, as shown in fig. 2a, the sliding plate cylinder 4 and the scraper cylinder 3 are both in an extending state, the scraper 2 is in a folding state relative to the sliding plate 1, and the scraper 2 is matched with the sliding plate 1 to separate the hopper from the garbage can;
after a garbage compression instruction is obtained, as shown in fig. 2b, the scraper cylinder 3 retracts, the scraper 2 opens relative to the sliding plate 1, preparation for inserting loose garbage is made, when the scraper 2 opens in place relative to the sliding plate 1, namely, after a detection piece in a linkage system of the sliding plate 1 sends an instruction, the sliding plate cylinder 4 retracts, the sliding plate 1 is lowered, and the scraper 2 is inserted into the garbage to be crushed and compressed for the first time, as shown in fig. 2 c;
and then, the extension of the scraper cylinder 3 can be controlled according to the instruction continuously input by the user or the detection of the sliding plate 1 and the sliding plate cylinder 4, so that the scraper 2 rotates towards the direction of the garbage can to further compress the garbage, as shown in fig. 2d, when the scraper 2 rotates in place relative to the sliding plate 1, a detection part in a linkage system of the sliding plate 1 sends an instruction, the sliding plate cylinder 4 extends out, the sliding plate 1 moves upwards, the sliding plate mechanism returns to the initial position, as shown in fig. 2e, and the next compression operation is prepared.
In the above description, it is not absolute that the slide 1 moves up when the ram cylinder 4 is extended and moves down when the ram cylinder 4 is retracted, and the squeegee 2 is in the folded position with respect to the slide 1 when the squeegee cylinder 3 is extended and in the open position with respect to the slide 1 when the squeegee cylinder 3 is retracted, and in practice, the reverse can be used to move the slide 1 down when the ram cylinder 4 is extended and move up when the ram cylinder 4 is retracted, or to move the squeegee 2 in the open position with respect to the slide 1 when the squeegee cylinder 3 is extended and in the folded position with respect to the slide 1 when the squeegee cylinder 3 is retracted.
The garbage compression vehicle scraper sliding plate linkage system provided by the embodiment of the application is explained below.
Referring to fig. 3, fig. 3 is a schematic structural view of a scraper-slide linkage system of a refuse compression vehicle according to an embodiment of the present invention.
The scraping and sliding plate linkage system of the garbage compression truck comprises a scraping plate oil cylinder 3, a sliding plate oil cylinder 4, a three-position four-way electromagnetic valve 5, a three-position four-way hydraulic control valve 6 and a pressure difference control device.
The three-position four-way electromagnetic valve comprises a three-position four-way electromagnetic valve 5, a sliding plate oil cylinder 4, a pressure difference control device, a scraper oil cylinder 3, a three-position four-way hydraulic control valve 6, a three-position four-way electromagnetic valve and a three-position four-way electromagnetic valve, wherein two working ports of the three-position four-way electromagnetic valve 5 are respectively communicated with two working ports of the scraper oil cylinder 3; during garbage press-filling operation, firstly, controlling a right-position electromagnet DT2 of a three-position four-way electromagnetic valve 5 to be electrified, enabling the three-position four-way electromagnetic valve 5 to be in a right working position, enabling a three-position four-way hydraulic control reversing valve to be in a middle position (initial state) or a left working position (last cycle is finished), enabling a sliding plate oil cylinder 4 to be held to be not in pressure, enabling a rod cavity of the scraping plate oil cylinder 3 to be connected with an oil pump through the three-position four-way electromagnetic valve 5, enabling a rodless cavity of the scraping plate oil cylinder 3 to be communicated with an oil tank through the three-position four-way electromagnetic valve 5, enabling a scraper oil cylinder 3 to retract, enabling pressure of a rod cavity of the scraping plate oil cylinder 3 to be higher than pressure in the rodless cavity when the scraping plate oil cylinder 3 retracts completely, enabling hydraulic oil in the scraping plate oil cylinder 3 to be output to a right control port of the three-position four-way hydraulic control valve 6 through a pressure control device, enabling the three-position four-way hydraulic control valve 6 to be switched to be in a right working position, enabling the rod cavity of the sliding plate oil cylinder 4 to be communicated with the oil pump through the three-position four-position hydraulic control valve 6, enabling the sliding plate oil cylinder 4 to be communicated with the oil tank, enabling the sliding plate 2 to retract, and completing opening and downward moving of the sliding plate 1; then controlling the right electromagnet DT1 of the three-position four-way electromagnetic valve 5 to be electrified, switching the three-position four-way electromagnetic valve 5 to a left working position, connecting a rodless cavity of the scraper oil cylinder 3 with an oil pump through the three-position four-way electromagnetic valve 5, communicating a rod cavity of the scraper oil cylinder 3 with an oil tank through the three-position four-way electromagnetic valve 5, extending the scraper oil cylinder 3, when the scraper oil cylinder 3 is completely extended, increasing the pressure of the rodless cavity of the scraper oil cylinder 3 to be larger than the pressure in the rod cavity, outputting hydraulic oil in the scraper oil cylinder 3 to a left control port of the three-position four-way hydraulic control valve 6 through a pressure control device, switching the three-position four-way hydraulic control valve 6 to the left working position, communicating the rodless cavity of the sliding plate oil cylinder 4 with the oil pump through the three-position four-way hydraulic control valve 6, communicating the rod cavity of the sliding plate oil cylinder 4 with the oil tank through the three-position four-way hydraulic control valve 6, starting extending the sliding plate oil cylinder 4, completing the scraping of the scraping plate 2 and the upward moving of the sliding plate 1, namely the scraping, namely the garbage filling and the compressing.
Compared with the prior art, the scraping and sliding plate linkage system of the garbage compression vehicle provided by the invention has the advantages that the pressure difference output control oil of the rod cavity and the rodless cavity when the scraping plate oil cylinder 3 is completely extended or retracted is utilized to control the three-position four-way hydraulic control valve 6 connected with the sliding plate oil cylinder 4, so that the linkage of the scraping and sliding plate 1 is realized, the structure can completely avoid the failure phenomenon caused by the fact that the state detection device of the scraping plate oil cylinder 3 is covered by garbage and dirt in a messy way due to the working environment, and the working stability of the scraping and sliding mechanism is improved.
Illustratively, as shown in fig. 3-5, in an embodiment of the present invention, the differential pressure control device includes two differential pressure signaling modules 7, 8, the differential pressure signaling module includes a cartridge valve 12 and a check valve 14, the cartridge valve 12 and the check valve 14 are connected in series between two working ports of the differential pressure signaling module as an oil taking port of the differential pressure control device, the check valve 14 is located at a side of a working chamber of the cartridge valve 12 away from a control chamber of the cartridge valve 12, the check valve 14 is used for one-way communication from the squeegee oil cylinder 3 to the cartridge valve 12, oil outlets of the working chambers of the cartridge valves 12 of the two differential pressure signaling modules as oil outlets of the differential pressure control device are respectively connected with two control ports of the three-way hydraulic control valve 6, two working ports of one of the two differential pressure signaling modules are respectively communicated with a rod chamber and a rodless chamber of the squeegee oil cylinder 3 when the squeegee oil cylinder 3 is in a fully extended state, and two working ports of the other of the two differential pressure signaling modules are respectively communicated with the rod chamber and the rodless chamber of the squeegee oil cylinder 3 when the squeegee oil cylinder 3 is in a fully retracted state.
Certainly, the differential pressure control device is not limited to the above structure, in another embodiment, the differential pressure control device includes a two-position four-way hydraulic control valve 11, a shuttle valve 10 and two differential pressure signaling modules 7 and 8, the differential pressure signaling module includes a cartridge valve 12 and a check valve 14, the cartridge valve 12 and the check valve 14 are connected in series between two working ports of the differential pressure signaling module as an oil taking port of the differential pressure control device, the check valve 14 is located on a side of a working chamber of the cartridge valve 12 away from a control chamber of the cartridge valve 12, the check valve 14 is used for conducting in a one-way direction from the scraper cylinder 3 to the cartridge valve 12, an oil outlet of the working chamber of the cartridge valve 12 of the two differential pressure signaling modules is respectively connected with two control ports of the two-position four-way hydraulic control valve 11, two working ports of one of the two differential pressure signaling modules are respectively communicated with a rod chamber and a rodless chamber of the scraper cylinder 3 when the scraper cylinder 3 is in a fully extended state, two working ports of the other two differential pressure signaling modules are respectively communicated with a rod chamber and a rodless chamber of the scraper cylinder 3 when the scraper cylinder 3 is in a fully retracted state, two working ports of the shuttle valve 10 are respectively connected with an inlet of the shuttle valve 11, and two differential pressure signaling modules are respectively connected with an inlet of the shuttle valve 11 of the three-position four-way hydraulic control valve 10, and an outlet of the shuttle valve 11.
Further, in the two embodiments, the differential pressure signaling module further includes a throttling element 13, and the throttling element 13 is connected in parallel to two ends of the cartridge valve 12.
The working principle of the differential pressure signaling module is as follows:
when the rod cavity of the scraper oil cylinder 3 is a pressure cavity and the piston of the scraper oil cylinder 3 is located between the working ports a and b of the differential pressure signaling module 7, as shown in fig. 6 (1), pressure oil enters the working cavity of the cartridge valve 12 from the working port b through the one-way valve 14, the rodless cavity of the scraper oil cylinder 3 is an oil return cavity, the pressure is zero, the spool of the cartridge valve 12 moves leftwards against the spring, and the oil outlet e of the cartridge valve 12 outputs control oil to control the three-position four-way hydraulic control valve 6; when the rodless cavity of the scraper oil cylinder 3 is a pressure cavity and the piston of the scraper oil cylinder 3 is positioned between the working ports a and b of the differential pressure signaling module, the one-way valve 14 separates the rod cavity and the rodless cavity of the scraper oil cylinder 3 to prevent pressure oil in the rodless cavity of the scraper oil cylinder 3 from entering the rod cavity, the pressure oil enters the control cavity of the cartridge valve 12 through the working port a and acts on the valve core, and after being reduced in pressure by the throttling element 13, the pressure oil enters the working cavity of the cartridge valve 12 and acts on the valve core, because the pressure acting on the valve core of the control cavity is larger than the pressure acting on the valve core of the working cavity, and the acting area of the control cavity of the cartridge valve 12 is larger than the acting area of the valve core of the working cavity, the cartridge valve 12 is closed, and the oil outlet e of the cartridge valve 12 does not output the control oil;
when the piston of the scraper oil cylinder 3 is in a state between the working ports b and c of the two differential pressure signaling modules 7 and 8, as shown in fig. 6 (2), pressure oil respectively enters the control cavity and the working cavity of the cartridge valve 12 through the working ports a and b and the working ports d and c and acts on the valve core, the pressure acting on the valve core of the control cavity is the same as the pressure acting on the valve core of the working cavity, and because the acting area of the valve core of the control cavity is larger than that of the valve core of the working cavity, the cartridge valve 12 between the working ports a and b and the cartridge valve 12 between the working ports d and c are closed, and the oil outlets e and f of the two cartridge valves 12 do not output the control oil;
when the rodless cavity of the scraper oil cylinder 3 is in a state that a pressure cavity piston is positioned between the working ports c and d of the differential pressure signaling module 8, as shown in fig. 6 (3), pressure oil enters the working cavity valve core of the cartridge valve 12 from the working port c through the one-way valve 14, after the control cavity is communicated with the rod cavity of the scraper oil cylinder 3, the rod cavity is an oil return cavity, the pressure is zero, the pressure acting on the working cavity valve core is greater than the pressure acting on the control cavity valve core, so that the oil outlet f of the cartridge valve 12 is opened, and the pressure oil enters the three-position four-way hydraulic control valve 6 through the oil outlet f of the cartridge valve 12; when the rod cavity of the scraper cylinder 3 is in a state that the pressure cavity piston is positioned between the working ports c and d of the differential pressure signaling module 8, the one-way valve 14 separates the rod cavity and the rodless cavity of the scraper cylinder 3, so that pressure oil in the rodless cavity of the scraper cylinder 3 is prevented from entering the rod cavity, the pressure oil enters the control cavity of the cartridge valve 12 through the working port d and acts on the valve core, and enters the working cavity of the cartridge valve 12 after being reduced in pressure by the throttling element 13 and acts on the valve core, because the pressure acting on the valve core of the control cavity of the cartridge valve 12 is larger than the pressure acting on the valve core of the working cavity, and the acting area of the control cavity of the cartridge valve 12 is larger than the acting area of the valve core of the working cavity, the cartridge valve 12 is closed, and the oil outlet f of the cartridge valve 12 does not output the control oil.
Further optimizing the technical scheme, the scraper slide linkage system further comprises a hydraulic control one-way valve 9, an inlet and an outlet of the hydraulic control one-way valve 9 are connected in series between one working port of the three-position four-way electromagnetic valve 5 and one working port of the scraper cylinder 3, and a control port of the hydraulic control one-way valve 9 is communicated with the other working port of the three-position four-way electromagnetic valve 5.
Preferably, the scraping sliding plate linkage system further comprises an instruction acquisition module for acquiring a user instruction, the instruction acquisition module is connected with a controller of the scraping sliding plate linkage system of the garbage compression truck, the controller of the scraping sliding plate linkage system of the garbage compression truck controls the three-position four-way solenoid valve 5 to be electrified and switched from the middle position to the left position or the right position according to the user instruction acquired by the instruction acquisition module, and the instruction acquisition module comprises but is not limited to a remote controller, a touch screen, a keyboard, a voice receiving and recognizing device or a combination of at least two of the four types.
The embodiment of the invention also provides a garbage compression truck, which comprises the garbage compression truck scraping and sliding plate linkage system in the embodiment, and the garbage compression truck adopts the garbage compression truck scraping and sliding plate linkage system in the embodiment, so that the technical effect of the garbage compression truck refers to the embodiment.
Preferably, a first garbage amount detection device can be arranged in a hopper of the garbage compression truck, the first garbage amount detection device can be one or a combination of a weight detection device, a volume detection device, a position detection device and a camera device and is used for detecting the amount of garbage entering the hopper, when the amount of garbage in the hopper exceeds a first preset value, the garbage can be fed back to a user through the feedback module, or when the controller detects that the amount of garbage in the hopper exceeds the first preset value, the right electromagnet DT2 of the three-position four-way electromagnetic valve 5 is automatically controlled to be powered on to perform garbage compression operation, and the feedback module comprises but is not limited to a display, a prompt tone or a vibration notification device.
Furthermore, a second garbage amount detection device can be arranged in a garbage can of the garbage compression truck and used for detecting the garbage amount in the garbage can, similar to the first garbage amount detection device, the second garbage amount detection device can be formed by one or a plurality of combinations of a weight detection device, a volume detection device, a position detection device and a camera device, when the garbage amount in the garbage can exceeds a second preset value, an alarm is given to a user through the feedback module, and the user can timely operate the garbage compression truck to a specified place to dump garbage.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a garbage compression car scrapes slide linkage system, its characterized in that, includes scraper blade hydro-cylinder, slide hydro-cylinder, tribit four-way solenoid valve, tribit four-way hydraulic control valve and pressure differential controlling means, two workports of tribit four-way solenoid valve respectively with two workports of scraper blade hydro-cylinder intercommunication, two workports of tribit four-way hydraulic control valve respectively with two workports of slide hydro-cylinder intercommunication, pressure differential controlling means get the hydraulic fluid port with the scraper blade hydro-cylinder intercommunication, pressure differential controlling means's oil-out respectively with two control ports of tribit four-way hydraulic control valve are connected, pressure differential controlling means is used for when the scraper blade hydro-cylinder is in the complete extension state and the complete withdrawal state output control oil with the control three-position four-way hydraulic control valve switches from the neutral position to left position or right position.
2. The trash compactor scraping and sliding plate linkage system according to claim 1, wherein the differential pressure control device comprises two differential pressure signaling modules, each differential pressure signaling module comprises a cartridge valve and a one-way valve, the cartridge valve and the one-way valve are connected in series between two working ports of the differential pressure signaling module, the two working ports are used as oil taking ports of the differential pressure control device, the one-way valve is located on one side, away from a control cavity of the cartridge valve, of the working cavity of the cartridge valve, the one-way valve is used for conducting in a one-way mode from the scraper cylinder to the direction of the cartridge valve, oil outlets of the working cavities of the cartridge valves of the two differential pressure signaling modules are used as oil outlets of the differential pressure control device and are respectively connected with two control ports of the three-position four-way hydraulic control valve, two working ports of one of the two differential pressure signaling modules are respectively communicated with a rod cavity and a rodless cavity of the scraper cylinder when the scraper cylinder is in a fully extended state, and two working ports of the other of the two differential pressure signaling modules are respectively communicated with the rod cavity and the rodless cavity of the scraper cylinder when the scraper cylinder is in a fully retracted state.
3. The trash compactor vehicle scraping slide plate linkage system of claim 2, wherein the differential pressure signaling module further comprises a throttling element, the throttling element being connected in parallel to both ends of the cartridge valve.
4. The trash compactor scraping and sliding plate linkage system according to claim 1, wherein the differential pressure control device comprises a two-position four-way hydraulic control valve, a shuttle valve and two differential pressure signaling modules, each differential pressure signaling module comprises a cartridge valve and a one-way valve, the cartridge valve and the one-way valve are connected in series between two working ports of the differential pressure signaling module serving as an oil taking port of the differential pressure control device, the one-way valve is located on one side, away from a control cavity of the cartridge valve, of the working cavity of the cartridge valve, the one-way valve is used for one-way conduction from the scraper cylinder to the cartridge valve, oil outlets of the working cavities of the cartridge valves of the two differential pressure signaling modules are connected with two control ports of the two-position four-way hydraulic control valve respectively, two working ports of one of the two differential pressure signaling modules are communicated with a rod cavity and a rodless cavity of the scraper cylinder respectively when the scraper cylinder is in a fully extended state, two working ports of the other one of the two differential pressure signaling modules are communicated with the rod cavity and the rodless cavity of the scraper cylinder respectively, two working ports of the differential pressure signaling module are connected with two inlet ports of the two working ports of the shuttle valve respectively connected with two three-position four-way hydraulic control valves, and the inlet of the two differential pressure signaling modules are connected with two inlet ports of the two three-position four-way hydraulic control valve respectively, and the inlet of the three-position four-way hydraulic control valve, and inlet of the three-position four-way hydraulic control valve are connected with the inlet of the three-position four-way hydraulic control valve respectively.
5. The trash compactor sliding plate linkage system according to claim 4, wherein the differential pressure signaling module further comprises a throttling element, and the throttling element is connected in parallel to two ends of the cartridge valve.
6. The garbage compression truck scraping and sliding plate linkage system according to any one of claims 1-5, further comprising a hydraulic control one-way valve, wherein an inlet and an outlet of the hydraulic control one-way valve are connected in series between one working port of the three-position four-way electromagnetic valve and one working port of the scraping plate oil cylinder, and a control port of the hydraulic control one-way valve is communicated with the other working port of the three-position four-way electromagnetic valve.
7. The trash compactor sliding plate scraping linkage system according to any one of claims 1-5, further comprising an instruction obtaining module for obtaining a user instruction, wherein the instruction obtaining module is connected with a controller of the trash compactor sliding plate scraping linkage system, and the controller of the trash compactor sliding plate scraping linkage system controls the three-position four-way solenoid valve to be powered on and switched from a middle position to a left position or a right position according to the user instruction obtained by the instruction obtaining module.
8. A refuse compactor comprising a refuse compactor scraper and slide linkage system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486285.4A CN115258470A (en) | 2021-04-30 | 2021-04-30 | Garbage compression vehicle and scraping slide plate linkage system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486285.4A CN115258470A (en) | 2021-04-30 | 2021-04-30 | Garbage compression vehicle and scraping slide plate linkage system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115258470A true CN115258470A (en) | 2022-11-01 |
Family
ID=83744667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110486285.4A Pending CN115258470A (en) | 2021-04-30 | 2021-04-30 | Garbage compression vehicle and scraping slide plate linkage system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115258470A (en) |
-
2021
- 2021-04-30 CN CN202110486285.4A patent/CN115258470A/en active Pending
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