CN220200267U - Self-loading and unloading garbage truck and hydraulic control system thereof - Google Patents
Self-loading and unloading garbage truck and hydraulic control system thereof Download PDFInfo
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- CN220200267U CN220200267U CN202320694144.6U CN202320694144U CN220200267U CN 220200267 U CN220200267 U CN 220200267U CN 202320694144 U CN202320694144 U CN 202320694144U CN 220200267 U CN220200267 U CN 220200267U
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000007790 scraping Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 156
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a self-loading and unloading type garbage truck and a hydraulic control system thereof, wherein the self-loading and unloading type garbage truck comprises a garbage can, a scraping plate mechanism and a sliding plate mechanism arranged on the garbage can in a sliding way, and the hydraulic control system comprises a main oil supply circuit, a sliding plate oil cylinder, a scraping plate oil cylinder and a first pressure control valve arranged on the oil circuit of the scraping plate oil cylinder; the slide plate cylinder is used for driving the slide plate mechanism to linearly move along the front-back direction; one end of the scraper oil cylinder is hinged with the sliding plate mechanism, the telescopic end of the scraper oil cylinder is hinged with the scraper mechanism, the scraper oil cylinder is used for driving the scraper mechanism to scrape and swing, and the sliding plate oil cylinder and the scraper oil cylinder are connected in parallel on a main oil supply oil path; the first outlet of the first pressure control valve is communicated with a rod cavity of the scraper oil cylinder, the first inlet and the first control end are communicated with the oil pump, and when the pressure of the rodless cavity of the scraper oil cylinder reaches a first preset value, the first inlet and the first outlet are communicated so as to reduce the oil pressure of the scraper oil cylinder, so that the working pressure of the scraper is limited, and the damage of the scraper to the dustbin is prevented.
Description
Technical Field
The utility model belongs to the technical field of sanitation machinery, and particularly relates to a self-loading and unloading garbage truck and a hydraulic control system thereof.
Background
With the increasing environmental protection requirements, the tail non-fully-closed device of the existing dustbin cannot meet the use requirements gradually, and the tail fully-closed device is generally used for realizing the functions of filling garbage and covering a garbage opening; if the sensor on the slide plate mechanism senses failure or delay sensing, the scraping plate mechanism can generate certain damage to the dustbin in the pressing and filling process if the oil pressure of the oil path of the scraping plate mechanism is not reduced. Moreover, conventional hydraulic systems often result in either inaccurate coverage, easy drifting out of the waste, or transition of coverage, collision of the scraper with the dustbin, and damage of the scraper due to inaccurate control.
Disclosure of Invention
The utility model mainly aims to provide a self-loading and unloading garbage truck and a hydraulic control system thereof, and aims to solve the technical problems that the existing hydraulic system of the self-loading and unloading garbage truck is inaccurate in control, so that garbage is scattered and a scraping plate is damaged in the transportation process.
In order to achieve the above object, the present utility model provides a hydraulic control system of a self-loading and unloading type garbage truck, the self-loading and unloading type garbage truck including a garbage can, a scraper mechanism, and a slide plate mechanism slidably disposed on the garbage can, the hydraulic control system comprising:
one end of the main oil supply oil way is communicated with the oil tank, and the other end of the main oil supply oil way is communicated with the oil pump;
the slide plate cylinder is used for driving the slide plate mechanism to linearly move along the front-back direction;
one end of the scraper oil cylinder is hinged with the slide plate mechanism, the telescopic end of the scraper oil cylinder is hinged with the scraper mechanism, the scraper oil cylinder is used for driving the scraper mechanism to scrape and swing, and the slide plate oil cylinder and the scraper oil cylinder are connected in parallel on the main oil supply oil path; and
the first pressure control valve is arranged on the oil path of the scraper oil cylinder and comprises a first inlet, a first outlet and a first control end, the first outlet is communicated with a rod cavity of the scraper oil cylinder, the first inlet and the first control end are communicated with the oil pump, and when the pressure of a rodless cavity of the scraper oil cylinder reaches a first preset value, the first inlet and the first outlet are communicated.
In the embodiment of the utility model, the hydraulic control system further comprises a second pressure control valve which is arranged on the main oil supply oil path and comprises a second inlet, a second outlet and a second control end, wherein the second inlet and the second control end are connected with the oil outlet end of the oil pump, and when the oil pressure of the main oil supply oil path reaches a second preset value, the second outlet is communicated with the oil tank.
In the embodiment of the utility model, the slide plate oil cylinder comprises a front section oil cylinder and a rear section oil cylinder, wherein a front section piston rod is arranged in the front section oil cylinder, a rear section piston rod is arranged in the rear section oil cylinder, a first induction plate is arranged at the bottom of the periphery of the front section oil cylinder, and a second induction plate is arranged at the bottom of the periphery of the rear section oil cylinder.
In the embodiment of the utility model, the hydraulic control system further comprises a multi-way valve arranged on the main oil supply oil path, wherein the multi-way valve comprises two first reversing valves which are connected in parallel, and the two first reversing valves are respectively communicated with the oil paths of the front section oil cylinder and the rear section oil cylinder.
In the embodiment of the utility model, the multi-way valve further comprises a second reversing valve connected with the scraper cylinder, and the first pressure control valve is arranged on a connecting oil path between the scraper cylinder and the second reversing valve.
In the embodiment of the utility model, the first reversing valve and the second reversing valve are three-position four-way electromagnetic reversing valves.
In the embodiment of the utility model, the first reversing valve and the second reversing valve respectively comprise a first working oil port and a second working oil port which are positioned at one side, and a main oil inlet and a main oil return port which are positioned at the other side;
when the first switching position is changed, the main oil inlet is communicated with the second working oil port, and the first working oil port is communicated with the main oil return port;
when the second switching position is changed, the main oil inlet is communicated with the first working oil port, and the second working oil port is communicated with the main oil return port.
In an embodiment of the utility model, in a first reversing valve: the first working oil port is communicated with a rodless cavity of the rear-section oil cylinder, and the second working oil port is communicated with a rod cavity of the rear-section oil cylinder; in another first reversing valve: the first working oil port is communicated with a rodless cavity of the front-section oil cylinder, and the second working oil port is communicated with a rod cavity of the front-section oil cylinder.
In an embodiment of the present utility model, the multi-way valve further includes a plurality of reversing valves connected to the actuator, and the plurality of reversing valves, the first reversing valve, and the second reversing valve are connected in parallel.
In an embodiment of the utility model, a self-loading and unloading garbage truck is also provided, which comprises the hydraulic control system.
Through the technical scheme, the hydraulic control system of the self-loading and unloading garbage truck provided by the embodiment of the utility model has the following beneficial effects:
the hydraulic control system comprises a main oil supply circuit, wherein one end of the main oil supply circuit is communicated with an oil tank, and the other end of the main oil supply circuit is communicated with an oil pump; the slide plate cylinder is used for driving the slide plate mechanism to linearly move along the front-back direction; one end of the scraper oil cylinder is hinged with the sliding plate mechanism, the telescopic end of the scraper oil cylinder is hinged with the scraper mechanism, and the sliding plate oil cylinder and the scraper oil cylinder are connected in parallel on the main oil supply oil path; the hydraulic system is characterized in that a first pressure control valve is further arranged on an oil path of the scraper oil cylinder, a first outlet of the first pressure control valve is communicated with a rod cavity of the scraper oil cylinder, a first inlet and a first control end are communicated with an oil pump, and when the pressure of a rodless cavity of the scraper oil cylinder reaches a first preset value, the first inlet and the first outlet are communicated, so that the oil pressure of the scraper oil cylinder can be reduced, the working pressure of the scraper is limited in a proper range, and damage to a dustbin caused by overhigh pressure of the scraper is prevented.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic hydraulic schematic diagram of a hydraulic control system of a self-loading garbage truck according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a slide cylinder in the self-loading and unloading type garbage truck according to the present utility model.
Description of the reference numerals
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Slide plate cylinder | L | Main oil supply way |
| 11 | Front section oil cylinder | P | Main oil inlet |
| 111 | First induction plate | T | Main oil return port |
| 12 | Rear section oil cylinder | A1 | A first working oil port |
| 121 | Second induction plate | A2 | Second working oil port |
| 20 | Scraper cylinder | Y1 | First electromagnet |
| 30 | First pressure control valve | Y2 | Second electromagnet |
| 40 | Second pressure control valve | 60 | Oil pump |
| 50 | Multi-way valve | 70 | Oil tank |
| 51 | First reversing valve | 80 | Electromagnetic valve |
| 52 | Second reversing valve |
Detailed Description
Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.
The self-loading and unloading type garbage truck and the hydraulic control system thereof according to the present utility model are described below with reference to the accompanying drawings.
As shown in fig. 1, in an embodiment of the present utility model, there is provided a hydraulic control system of a self-loading and unloading type garbage truck including a garbage can, a scraper mechanism, and a slide plate mechanism slidably provided on the garbage can, the hydraulic control system including a main oil supply line L, a slide plate cylinder 10, a scraper cylinder 20, and a first pressure control valve 30; one end of the main oil supply path L is communicated with the oil tank 70, and the other end is communicated with the oil pump 60; the slide cylinder 10 is used for driving the slide mechanism to linearly move along the front-back direction; one end of the scraper cylinder 20 is hinged with the sliding plate mechanism, the telescopic end of the scraper cylinder 20 is hinged with the scraper mechanism, the scraper cylinder 20 is used for driving the scraper mechanism to scrape and swing, and the sliding plate cylinder 10 and the scraper cylinder 20 are connected in parallel on the main oil supply oil way L; the first pressure control valve 30 is disposed on the oil path of the scraper cylinder 20 and includes a first inlet, a first outlet, and a first control end, the first outlet being in communication with the rod chamber of the scraper cylinder 20, the first inlet and the first control end being in communication with the oil pump 60. Because the drive end of the piston rod of the scraper cylinder 20 is connected with the scraper mechanism, when the scraper mechanism works, when the pressure of the rodless cavity of the scraper cylinder 20 reaches a first preset value, the first inlet is communicated with the first outlet, so that the oil pressure of the rodless cavity of the scraper cylinder 20 can be decompressed, the oil pressure of the scraper cylinder 20 can be reduced, the working pressure of the scraper mechanism is limited in a proper range, and the damage to the dustbin caused by the overhigh pressure of the scraper mechanism is prevented. The brand-new hydraulic control system in the application solves the technical problems that the conventional hydraulic system is inaccurate in control, so that the garbage truck is guaranteed not to spill garbage and the scraping plate is damaged in the transportation process.
In the embodiment of the present utility model, the hydraulic control system further includes a second pressure control valve 40 disposed on the main oil supply path L and including a second inlet, a second outlet and a second control end, wherein the second inlet and the second control end are connected to the oil outlet end of the oil pump 60, and when the oil pressure of the main oil supply path L reaches a second preset value, the second outlet is communicated with the oil tank 70, so that a portion of hydraulic oil greater than the second preset value flows back to the oil tank 70 from the second outlet, thereby achieving the purpose of limiting the oil pressure of the entire hydraulic oil supply system.
Wherein both the first pressure control valve 30 and the second pressure control valve 40 may preferably be relief valves.
As shown in fig. 2, the slide plate cylinder 10 comprises a front section cylinder 11 and a rear section cylinder 12, wherein a front section piston rod is arranged in the front section cylinder 11, a rear section piston rod is arranged in the rear section cylinder 12, a first sensing plate 111 is arranged at the bottom of the periphery of the front section cylinder 11, a first position sensor which is in inductive fit with the first sensing plate 111 is arranged on the slide plate mechanism, and the first sensing plate 111 judges the retraction situation of the front section cylinder 11 by sensing the position signal of the first position sensor; a second sensing plate 121 is arranged at the bottom of the periphery of the rear-section oil cylinder 12, a second position sensor is arranged on the dustbin, and the second sensing plate 121 judges the extending-out situation of the rear-section oil cylinder 12 by sensing the position signal of the second position sensor. This application is through arranging first sensing board 111 and second sensing board 121 on slide hydro-cylinder 10, compares with the prior art and arranges the sensing board on slide mechanism, the removal position precision of control slide mechanism that can be accurate prevents to lead to the response inefficacy of sensing board because of slide frame horizontal hunting to the condition of scratch dustbin can not appear in this kind of special structure's slide hydro-cylinder 10 structure, has guaranteed the safe in utilization of equipment.
In the embodiment of the utility model, the hydraulic control system further comprises a multi-way valve 50 arranged on the main oil supply oil path L, wherein the multi-way valve 50 comprises two first reversing valves 51 connected in parallel, and the two first reversing valves 51 are respectively communicated with the oil paths of the front-stage oil cylinder 11 and the rear-stage oil cylinder 12. In this application, as shown in fig. 1, the number of the slide cylinders 10 is preferably two, wherein the working oil port of one first reversing valve 51 is in oil-way communication with the front-stage cylinders 11 of the two slide cylinders 10, and the working oil port of the other first reversing valve 51 is in oil-way communication with the rear-stage cylinders 12 of the two slide cylinders 10, so that the two first reversing valves 51 can respectively and independently control the oil-ways of the front-stage cylinders 11 and the rear-stage cylinders 12.
In the embodiment of the present utility model, the multi-way valve 50 further includes a second directional valve 52 connected to the scraper cylinder 20, and the first pressure control valve 30 is provided on the connection oil path between the scraper cylinder 20 and the second directional valve 52. The oil passage of the second direction valve 52 controls the operation of the screed cylinder 20, and the first pressure control valve 30 is used to define the oil pressure of the connecting oil passage between the screed cylinder 20 and the second direction valve 52.
Preferably, in the embodiment of the present utility model, the first reversing valve 51 and the second reversing valve 52 are each three-position four-way electromagnetic reversing valves.
In the embodiment of the present utility model, the first reversing valve 51 and the second reversing valve 52 each include a first working oil port A1 and a second working oil port A2 on one side, and a main oil inlet P and a main oil return port T on the other side;
when the first switching position is changed, the main oil inlet P is communicated with the second working oil port A2, and the first working oil port A1 is communicated with the main oil return port T;
when the second switching position is changed, the main oil inlet P is communicated with the first working oil port A1, and the second working oil port A2 is communicated with the main oil return port T.
Further, in a first reversing valve 51: the first working oil port A1 is communicated with a rodless cavity of the rear-section oil cylinder 12, and the second working oil port A2 is communicated with a rod cavity of the rear-section oil cylinder 12; in the other first reversing valve 51: the first working oil port A1 is communicated with a rodless cavity of the front-section oil cylinder 11, and the second working oil port A2 is communicated with a rod cavity of the front-section oil cylinder 11.
The main oil supply path L is further provided with an electromagnetic valve 80 for switching the path. Hydraulic oil enters the multi-way valve 50 through the oil pump 60, the electromagnet in the electromagnetic valve 80 is electrified, the whole hydraulic system builds pressure, the first electromagnet Y1 in the first reversing valve 51 at the left side is electrified, the first reversing valve 51 is positioned at a second switching position, and the hydraulic oil flowing in from the main oil inlet P flows into the rodless cavity of the rear-section oil cylinder 12 through the first working oil port A1; meanwhile, the rod cavity of the rear-section oil cylinder 12 returns oil, so that the rear-section piston rod of the rear-section oil cylinder 12 is controlled to extend until a second sensing plate 121 on the rear-section oil cylinder 12 senses a signal of a second position sensor on the dustbin, and the fact that the rear-section piston rod extends in place at the moment is indicated to reach a working state of garbage press filling, and the garbage press filling function can be operated at the moment; then the second electromagnet Y2 on the second reversing valve 52 is electrified, the second reversing valve 52 is in a second switching position, the rodless cavity of the scraper cylinder 20 is used for oil feeding and the rod cavity is used for oil returning, so that a piston rod of the scraper cylinder 20 extends out to drive the scraper to swing and scrape towards a garbage filling inlet, the first electromagnet Y1 in the first reversing valve 51 on the right side is electrified, the rodless cavity of the front section cylinder 11 is used for oil feeding and the rod cavity is used for oil returning, so that the front section piston rod is driven to extend out to drive the whole slide plate mechanism to move forwards, and garbage filling is carried out.
After the garbage is filled in place, the second electromagnet Y2 on the second reversing valve 52 is powered off, the scraper cylinder 20 drives the scraper to open, the first electromagnet Y1 in the first reversing valve 51 on the right side is powered off, the rod cavity of the front section cylinder 11 is used for oil feeding, and the rod cavity is used for oil returning, so that the front section piston rod is driven to retract to reach the initial state. After the operation is finished, the garbage filling inlet of the garbage can is covered, and at the moment, the first sensing plate 111 on the front section oil cylinder 11 senses the signal of the first position sensor, so that the front section piston rod is retracted to be in position; then the first electromagnet Y1 in the first reversing valve 51 at the left side is powered off, and the rear-section piston rod is retracted; and in order to limit the working pressure of the scraper mechanism, the second electromagnet Y2 of the second reversing valve 52 is powered on, and the scraper of the scraper cylinder 20 is scraped off, at this time, the first pressure control valve 30 is powered on to limit the working pressure of the scraper to be less than the rated maximum value, so as to protect the scraper, wherein the rated maximum value can be adjusted in real time according to actual needs.
Further, the multi-way valve 50 further includes a plurality of reversing valves connected to other actuators, and the plurality of reversing valves, the first reversing valve 51 and the second reversing valve 52 are connected in parallel. The other reversing valves can be respectively connected with other driving oil cylinders working on the self-loading and unloading garbage truck to ensure the normal working of the self-loading and unloading garbage truck, for example: walking and the like. Since the plurality of reversing valves, the first reversing valve 51 and the second reversing valve 52 are connected in parallel, each actuator can work independently, and the condition that mutual interference is not caused in the working state and the driving state is met.
In addition, in the embodiment of the utility model, a self-loading and unloading garbage truck is also provided, and the self-loading and unloading garbage truck comprises the hydraulic control system. The self-loading and unloading garbage truck adopts all the embodiments of the hydraulic control system, so that the self-loading and unloading garbage truck has all the beneficial effects brought by the hydraulic control system and is not described in detail herein.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. The utility model provides a from hydraulic control system of loading and unloading formula garbage truck, its characterized in that, from loading and unloading formula garbage truck includes dustbin, scraper blade mechanism and slide board mechanism who locates on the dustbin, hydraulic control system includes:
a main oil supply path (L), one end of which is communicated with the oil tank (70) and the other end of which is communicated with the oil pump (60);
a slide plate cylinder (10) for driving the slide plate mechanism to linearly move in the front-rear direction;
one end of the scraper oil cylinder (20) is hinged with the sliding plate mechanism, the telescopic end of the scraper oil cylinder is hinged with the scraping plate mechanism, the scraper oil cylinder (20) is used for driving the scraping plate mechanism to scrape and swing, and the sliding plate oil cylinder (10) and the scraper oil cylinder (20) are arranged on the main oil supply oil way (L) in parallel; and
the first pressure control valve (30) is arranged on the oil path of the scraper cylinder (20) and comprises a first inlet, a first outlet and a first control end, the first outlet is communicated with a rod cavity of the scraper cylinder (20), the first inlet is communicated with the first control end and the oil pump (60), and when the pressure of a rodless cavity of the scraper cylinder (20) reaches a first preset value, the first inlet is communicated with the first outlet.
2. The hydraulic control system of a self-loading and unloading garbage truck according to claim 1, characterized in that it further comprises a second pressure control valve (40) provided on the main oil supply circuit (L) and comprising a second inlet, a second outlet and a second control end, both of which are connected to the oil outlet end of the oil pump (60), said second outlet being in communication with the oil tank (70) when the oil pressure of the main oil supply circuit (L) reaches a second preset value.
3. The hydraulic control system of the self-loading and unloading garbage truck according to claim 2, wherein the slide plate cylinder (10) comprises a front section cylinder (11) and a rear section cylinder (12), a front section piston rod is arranged in the front section cylinder (11), a rear section piston rod is arranged in the rear section cylinder (12), a first induction plate (111) is arranged at the bottom of the periphery of the front section cylinder (11), and a second induction plate (121) is arranged at the bottom of the periphery of the rear section cylinder (12).
4. A hydraulic control system of a self-loading and unloading type garbage truck according to claim 3, characterized in that the hydraulic control system further comprises a multi-way valve (50) arranged on the main oil supply oil way (L), the multi-way valve (50) comprises two parallel first reversing valves (51), and the two first reversing valves (51) are respectively communicated with the oil ways of the front-stage oil cylinder (11) and the rear-stage oil cylinder (12).
5. The hydraulic control system of a self-loading and unloading garbage truck according to claim 4, wherein the multi-way valve (50) further comprises a second reversing valve (52) connected with the scraper cylinder (20), and the first pressure control valve (30) is arranged on a connecting oil path between the scraper cylinder (20) and the second reversing valve (52).
6. The hydraulic control system of a self-loading and unloading garbage truck according to claim 5, wherein the first reversing valve (51) and the second reversing valve (52) are three-position four-way electromagnetic reversing valves.
7. The hydraulic control system of the self-loading and unloading garbage truck according to claim 6, characterized in that the first reversing valve (51) and the second reversing valve (52) each comprise a first working oil port (A1) and a second working oil port (A2) on one side, a main oil inlet (P) and a main oil return port (T) on the other side;
when the first switching position is changed, the main oil inlet (P) is communicated with the second working oil port (A2), and the first working oil port (A1) is communicated with the main oil return port (T);
when the second switching position is changed, the main oil inlet (P) is communicated with the first working oil port (A1), and the second working oil port (A2) is communicated with the main oil return port (T).
8. The hydraulic control system of a self-loading and unloading refuse vehicle according to claim 7, characterized in that in one of said first reversing valves (51): the first working oil port (A1) is communicated with a rodless cavity of the rear-section oil cylinder (12), and the second working oil port (A2) is communicated with a rod cavity of the rear-section oil cylinder (12); in another of the first reversing valves (51): the first working oil port (A1) is communicated with the rodless cavity of the front-section oil cylinder (11), and the second working oil port (A2) is communicated with the rod cavity of the front-section oil cylinder (11).
9. The hydraulic control system of a self-loading and unloading garbage truck according to claim 6, wherein the multi-way valve (50) further comprises a plurality of reversing valves connected with an actuator, and a plurality of reversing valves, the first reversing valve (51) and the second reversing valve (52) are connected in parallel.
10. A self-loading and unloading type garbage truck, characterized in that it comprises a hydraulic control system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694144.6U CN220200267U (en) | 2023-03-31 | 2023-03-31 | Self-loading and unloading garbage truck and hydraulic control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694144.6U CN220200267U (en) | 2023-03-31 | 2023-03-31 | Self-loading and unloading garbage truck and hydraulic control system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN220200267U true CN220200267U (en) | 2023-12-19 |
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| CN202320694144.6U Active CN220200267U (en) | 2023-03-31 | 2023-03-31 | Self-loading and unloading garbage truck and hydraulic control system thereof |
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| Country | Link |
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| CN (1) | CN220200267U (en) |
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