CN214826245U - 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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- CN214826245U CN214826245U CN202120943174.7U CN202120943174U CN214826245U CN 214826245 U CN214826245 U CN 214826245U CN 202120943174 U CN202120943174 U CN 202120943174U CN 214826245 U CN214826245 U CN 214826245U
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Abstract
The utility model discloses a rubbish compression car and scrape slide linkage system thereof, this system includes scraper blade hydro-cylinder, slide hydro-cylinder, tribit cross solenoid valve, tribit cross pilot operated valve and pressure differential controlling means, two working ports of tribit cross solenoid valve communicate with two working ports of scraper blade hydro-cylinder respectively, two working ports of tribit cross pilot operated valve communicate with two working ports of slide hydro-cylinder respectively, pressure differential controlling means gets the hydraulic fluid port and communicates with the scraper blade hydro-cylinder, the pressure differential controlling means oil-out is connected with two control ports of tribit cross pilot operated valve respectively, pressure differential controlling means is used for outputting control oil control tribit cross pilot operated valve action when the scraper blade hydro-cylinder is fully extended out and retracted; 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 utility model relates to a refuse handling installation technical field, in particular to rubbish compression car and scrape slide linked 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.
SUMMERY OF THE UTILITY MODEL
In view of this, the first objective of the present invention is to provide a garbage compressing vehicle scraper slide linkage system to avoid the failure of the sensor for detecting the working state of the scraper cylinder due to being covered by garbage, so as to improve the reliability of the garbage compressing vehicle in a dirty and messy environment and ensure the normal garbage collecting and transporting operation.
A second object of the utility model is to provide a rubbish compression car based on slide linked system is scraped to above-mentioned rubbish compression car.
In order to achieve the above object, the utility model provides a 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 ports of tribit four-way hydraulic control valve are connected, pressure differential controlling means is used for when scraper blade hydro-cylinder is in the complete extension state and the complete withdrawal state output control oil with the control the tribit four-way hydraulic control valve switches to left position or right position from the median.
Preferably, 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, which 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 one direction 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 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, and 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 the two working ports of the other one 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.
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 as an oil taking port of the differential pressure control device, the one-way valve is located on one side of a working chamber of the cartridge valve, which is far away from a control chamber of the cartridge valve, the one-way valve is used for conducting in one direction 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, and 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 when the scraper oil cylinder is in a fully retracted state, 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 oil cylinder, two inlets of the shuttle valve are respectively connected with two working ports of the three-position four-way electromagnetic valve, an outlet of the shuttle valve is connected with an inlet of the two-position four-way hydraulic control valve, and the two working ports of the two-position four-way hydraulic control valve 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.
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 above object, the utility model provides a garbage compression car scrapes slide linkage system, this garbage compression car scrapes slide linkage system includes the scraper blade hydro-cylinder, the slide hydro-cylinder, three-position four-way solenoid valve, three-position four-way hydraulic control valve and pressure differential controlling means, wherein, two workports of three-position four-way solenoid valve communicate with two workports of scraper blade hydro-cylinder respectively, two workports of three-position four-way hydraulic control valve communicate with two workports of slide hydro-cylinder respectively, the hydraulic fluid port of getting of pressure differential controlling means communicates with the scraper blade hydro-cylinder, the oil-out of pressure differential controlling means is connected with two control ports of three-position four-way hydraulic control valve respectively, pressure differential controlling means is used for outputting control oil when the scraper blade hydro-cylinder is in the complete extension state and the complete withdrawal state to control three-position four-way hydraulic control valve to switch from the middle position to left position or right position; when the garbage is pressurized and 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 positioned at a right working position, the three-position four-way hydraulic control reversing valve is positioned at a middle position (initial state) or a left working position (the last cycle is finished), the pressure of the sliding plate oil cylinder is suppressed, the rod cavity of the scraper oil cylinder is connected with the oil pump through the three-position four-way electromagnetic valve, the rodless cavity of the scraper oil cylinder is communicated with the oil tank through the three-position four-way electromagnetic valve, the scraper oil cylinder retracts, when the scraper oil cylinder is completely retracted, the pressure of the rod cavity of the scraper oil cylinder is increased to be larger than the pressure in the rod cavity, at the moment, the hydraulic oil in the scraper oil cylinder is output to a right control port of the three-position four-way hydraulic control valve through the 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-way hydraulic control valve, the sliding plate oil cylinder starts to retract, and the opening of the scraper and the downward movement of the sliding plate are completed; 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 higher 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 with the oil tank through the three-position four-way hydraulic control valve, and starting extending the sliding plate to complete scraping of a scraper and upward moving of a sliding plate, namely scraping and compressing garbage; therefore, the scraping and sliding plate linkage system utilizes the pressure difference 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 the sensor and the sensing 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 can be completely avoided, and the working stability of the scraping and sliding mechanism is improved.
The utility model also provides a rubbish compression car, this rubbish compression car include as above rubbish compression car scrape slide linkage system, because above-mentioned rubbish compression car scrapes slide linkage system and has above-mentioned technological effect, then adopt this rubbish compression car to scrape slide linkage system's rubbish compression car also should have above-mentioned technological effect, no longer give unnecessary details here.
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 these drawings without creative efforts.
FIG. 1 is a schematic structural view of a scraper slide linkage system of a garbage compactor 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 scraping and sliding plate linkage system of a garbage compression truck according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a pressure difference signaling module of a scraper-slide linkage system of a garbage compression truck 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 the embodiment of the utility model provides a slide linkage system's scraper blade hydro-cylinder operating condition chart is scraped to rubbish compression car.
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
One of the cores of the utility model is to provide a slide linkage system is scraped to rubbish compression car, and this rubbish compression car scrapes slide linkage system's structural design and can avoid its sensor that is used for detecting scraper blade hydro-cylinder operating condition to be covered and become invalid by rubbish, improves its reliability in dirty and messy environment, guarantees rubbish collection and transportation operation and normally goes on.
The utility model discloses an another core lies in providing a rubbish compression car based on slide linked system is scraped to above-mentioned rubbish compression car.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work 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.
Please refer to fig. 3, fig. 3 is a schematic structural view of a scraper-slide linkage system of a garbage compressing truck according to an embodiment of the present invention.
The embodiment of the utility model provides a pair of slide linked system is scraped to rubbish compression car, this rubbish compression car scrape slide linked system and include scraper blade hydro-cylinder 3, slide hydro-cylinder 4, tribit four-way solenoid valve 5, tribit four-way pilot operated valve 6 and pressure differential 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 the garbage press-filling operation, firstly, the right electromagnet DT2 of the three-position four-way electromagnetic valve 5 is controlled to be electrified, the three-position four-way electromagnetic valve 5 is positioned at a right working position, the three-position four-way hydraulic control reversing valve is positioned at a middle position (initial state) or a left working position (the last cycle is finished), the sliding plate oil cylinder 4 is pressed and is not moved, the rod cavity of the scraper oil cylinder 3 is connected with an oil pump through the three-position four-way electromagnetic valve 5, the rodless cavity of the scraper oil cylinder 3 is communicated with an oil tank through the three-position four-way electromagnetic valve 5, the scraper oil cylinder 3 retracts, when the scraper oil cylinder 3 is completely retracted, the pressure rise of the rod cavity of the scraper oil cylinder 3 is larger than the pressure in the rodless cavity, at the moment, the hydraulic oil in the scraper oil cylinder 3 is output to the right control port of the three-position four-way hydraulic control valve 6 through a pressure control device, the rod cavity of the sliding plate oil cylinder 4 is communicated with the oil pump through the three-position four-way hydraulic control valve 6, a rodless cavity of the sliding plate oil cylinder 4 is communicated with an oil tank through a three-position four-way hydraulic control valve 6, and the sliding plate oil cylinder 4 starts to retract to complete the opening of the scraper 2 and the downward movement of the sliding plate 1; then the right electromagnet DT1 of the three-position four-way electromagnetic valve 5 is controlled to be electrified, the three-position four-way electromagnetic valve 5 is switched to a left working position, the rodless cavity of the scraper oil cylinder 3 is connected with an oil pump through the three-position four-way electromagnetic valve 5, the rod cavity of the scraper oil cylinder 3 is communicated with an oil tank through the three-position four-way electromagnetic valve 5, the scraper oil cylinder 3 extends out, when the scraper oil cylinder 3 extends completely, the pressure rise of a rodless cavity of the scraper oil cylinder 3 is larger than the pressure in a rod cavity, at the moment, hydraulic oil in the scraper oil cylinder 3 is output to a left side control port of the three-position four-way hydraulic control valve 6 through the pressure control device, the three-position four-way hydraulic control valve 6 is switched to a left working position, the rodless cavity of the sliding plate oil cylinder 4 is communicated with an oil pump through the three-position four-way hydraulic control valve 6, the rod cavity of the sliding plate oil cylinder 4 is communicated with an oil tank through the three-position four-way hydraulic control valve 6, the sliding plate oil cylinder 4 begins to extend, and the scraping of the scraper 2 and the upward movement of the sliding plate 1 are completed, namely the scraping, filling and the compression of garbage.
Compared with the prior art, the utility model provides a rubbish compression car scrapes tribit cross pilot operated valve 6 that the slide linkage system utilized scraper cylinder 3 to stretch out completely or the pressure differential output control oil control that has pole chamber and no pole chamber when retracting completely is connected with slide cylinder 4, and then realizes scraping slide 1's linkage, and this kind of structure can avoid scraper cylinder 3 state detection device completely because of operational environment is dirty in disorder by rubbish, the filth covers and leads to the phenomenon of inefficacy, improves and scrapes the stability of slide mechanism work.
Illustratively, as shown in fig. 3-5, in an embodiment of the present invention, the differential pressure control device comprises two differential pressure signaling modules 7, 8, the differential pressure signaling module comprises 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 scraper 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-position four-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 scraper cylinder 3 when the scraper cylinder 3 is in a fully extended state, and two working ports of the other one of the two differential pressure signaling modules are respectively communicated with the rod cavity and the rodless cavity of the scraper cylinder 3 when the scraper cylinder 3 is in a fully retracted state.
Of course, 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, 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, oil outlets of the working chambers of the cartridge valves 12 of the two differential pressure signaling modules are 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 of the two differential pressure signaling modules are respectively communicated with a rod cavity and a rodless cavity of the scraper oil cylinder 3 when the scraper oil cylinder 3 is in a fully retracted state, two inlets of the shuttle valve 10 are respectively connected with two working ports of the three-position four-way electromagnetic valve 5, an outlet of the shuttle valve 10 is connected with an inlet of the two-position four-way hydraulic control valve 11, and the two working ports of the two-position four-way hydraulic control valve 11 are respectively connected with two control ports of the three-position four-way hydraulic control valve 6 as oil outlets of the differential pressure control device.
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 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 utility model provides a still provide a rubbish compression car, this rubbish compression car include above-mentioned embodiment rubbish compression car scrape slide linkage, because rubbish compression car has adopted the rubbish compression car in above-mentioned embodiment to scrape slide linkage, consequently the technological effect of rubbish compression car please refer to above-mentioned embodiment.
Preferably, a first garbage amount detecting device can be arranged in a hopper of the garbage compression truck, the first garbage amount detecting device can be one or a combination of a weight detecting device, a volume detecting device, a position detecting 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 sound or a vibration informing 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 an oil taking port of the differential pressure control device, the one-way valve is located on one side of a working chamber of the cartridge valve, which is far away from a control chamber of the cartridge valve, the one-way valve is used for one-way communication 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, and 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 the two working ports of the other one 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, 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 as an oil taking port of the differential pressure control device, the one-way valve is located on one side of a working chamber of the cartridge valve away from a control chamber 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 chambers of the cartridge valves of the two differential pressure signaling modules are respectively connected with the two control ports of the two-position four-way hydraulic control valve, and 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 when the scraper oil cylinder is in a fully retracted state, 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 oil cylinder, two inlets of the shuttle valve are respectively connected with two working ports of the three-position four-way electromagnetic valve, an outlet of the shuttle valve is connected with an inlet of the two-position four-way hydraulic control valve, and the two working ports of the two-position four-way hydraulic control valve 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.
5. The trash compactor vehicle scraping slide plate linkage system of claim 4, 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.
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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120943174.7U CN214826245U (en) | 2021-04-30 | 2021-04-30 | Garbage compression vehicle and scraping slide plate linkage system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120943174.7U CN214826245U (en) | 2021-04-30 | 2021-04-30 | Garbage compression vehicle and scraping slide plate linkage system thereof |
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| CN214826245U true CN214826245U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718935A (en) * | 2022-04-26 | 2022-07-08 | 上海犀重新能源汽车有限公司 | Electro-hydraulic control system, control method and garbage truck |
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2021
- 2021-04-30 CN CN202120943174.7U patent/CN214826245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718935A (en) * | 2022-04-26 | 2022-07-08 | 上海犀重新能源汽车有限公司 | Electro-hydraulic control system, control method and garbage truck |
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