CN108361233B - Filling compression control system and post-filling compression garbage truck - Google Patents
Filling compression control system and post-filling compression garbage truck Download PDFInfo
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- CN108361233B CN108361233B CN201810350512.9A CN201810350512A CN108361233B CN 108361233 B CN108361233 B CN 108361233B CN 201810350512 A CN201810350512 A CN 201810350512A CN 108361233 B CN108361233 B CN 108361233B
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- pressure
- oil
- push plate
- cylinder
- compression
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- 230000006835 compression Effects 0.000 title claims abstract description 77
- 238000007906 compression Methods 0.000 title claims abstract description 77
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims abstract 24
- 239000010720 hydraulic oil Substances 0.000 claims abstract 2
- 238000007790 scraping Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Refuse-Collection Vehicles (AREA)
Abstract
The invention discloses a filling compression control system, which comprises: the hydraulic oil pump comprises a multi-stage push plate oil cylinder and a scraper oil cylinder, wherein a rodless cavity of the multi-stage push plate oil cylinder is connected with an overflow valve for discharging oil and relieving pressure when the oil pressure reaches a first preset pressure; the rodless cavity of the multistage push plate cylinder is also connected with an external control sequence valve, and the external control sequence valve is used for acquiring system pressure and controlling the rodless cavity of the multistage push plate cylinder to discharge oil and release pressure when the compression pressure in the system reaches a second preset pressure. The multistage push plate oil cylinder is respectively connected with two different control valves, when the first preset pressure is reached, oil is discharged through the overflow valve, so that a piston rod of the multistage push plate oil cylinder is retracted inwards, bending damage of the piston rod is prevented, when the oil pressure in the system is continuously increased due to the filling pressure and reaches the second preset pressure, garbage is fully compressed at the moment, secondary oil discharge is implemented through the external control sequence valve, meanwhile, the multistage oil cylinder is ensured to be effectively overload-protected, the sufficiency of garbage compression is ensured, and the filling efficiency is ensured.
Description
Technical Field
The invention relates to the technical field of garbage treatment equipment, in particular to a filling compression control system and a post-filling compression garbage truck.
Background
The post-loading compression garbage truck is a special vehicle for efficiently collecting and transferring garbage, has no leakage in the collecting and transporting processes, has good environmental protection, large compression ratio, high degree of automation, good reliability and long service life, and is suitable for the barreling, bagging and the collection and transportation of bulk household garbage in urban residential areas, communities, large factories, mines and institutions.
The structure mainly comprises a second-class chassis, a carriage body, a push plate, a packer, a scraping plate mechanism, a sliding plate mechanism, a hydraulic system, an electric control system and the like. When the garbage is filled, the garbage is filled from the feeding port of the packer at the tail part of the carriage, and is pressed into the carriage body through the upward running of the sliding plate after the primary crushing of the sliding plate and the secondary crushing of the scraping plate. When unloading garbage, the loader at the tail is lifted in place, and then the garbage is pushed out by the push plate in the carriage body.
On the basis of the design, the compression filling design in the carriage which is mainstream at present is to realize the compression during filling through the push plate and the scraping plate which are oppositely arranged, thereby ensuring the filling amount and facilitating the subsequent treatment. When filling, the push plate stays at the tail part of the carriage body, and at the moment, the oil cylinders driving the push plate extend out completely, and the push plate slowly retreats along with continuous compression of garbage.
However, the mainstream design also has certain defects, because the push plate cylinder is a multi-stage cylinder, when filling and compressing are carried out, the design of a back pressure valve is generally adopted to realize oil discharge, if the pressure setting of the back pressure valve is large, the bending deformation of a piston rod of the push plate cylinder is easy to cause, and the service life of the push plate cylinder is reduced; if the pressure setting of the back pressure valve is small, the garbage is not compacted again, and the loading weight is small, so that space is wasted.
In summary, how to effectively solve the technical problems that the loading and compressing system of the existing post-loading compression garbage truck is difficult to achieve both the loading amount and the durability, and the like is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the foregoing, a first object of the present invention is to provide a loading compression control system, which can effectively solve the technical problems that the loading compression system of the existing post-loading compression type garbage truck is difficult to achieve both of loading capacity and durability, and a second object of the present invention is to provide a post-loading compression type garbage truck comprising the loading compression control system.
In order to achieve the first object, the present invention provides the following technical solutions:
a loading compression control system for a post-loading compression garbage truck, comprising:
the multi-stage push plate oil cylinder is in driving connection with the push plate, and the push plate is arranged in the carriage and positioned at one end of the carriage space for accommodating goods and is used for pushing out unloading;
the scraper oil cylinder is in driving connection with the scraper, and the scraper is arranged in the carriage and positioned at the other end of the carriage space for accommodating goods and is used for pressing the goods inwards;
the rodless cavity of the multistage push plate oil cylinder is connected with an overflow valve for discharging oil and relieving pressure when the oil pressure reaches a first preset pressure; the rodless cavity of the multistage push plate cylinder is also connected with an external control sequence valve, the external control sequence valve is used for acquiring system pressure, and controlling the rodless cavity of the multistage push plate cylinder to discharge oil and release pressure when the compression pressure in the system reaches a second preset pressure, and the value of the second preset pressure is larger than that of the first preset pressure.
Preferably, in the filling compression control system, the external control sequence valve is specifically an oil pressure sensing external control sequence valve, and the control oil path of the external control sequence valve is communicated with the rodless cavity of the scraper cylinder and is used for picking up the oil pressure of the rodless cavity of the scraper cylinder.
Preferably, in the loading compression control system, the first preset pressure is a critical retraction pressure of a piston rod of the multistage push plate cylinder; the second preset pressure is the critical retraction pressure of the rodless cavity of the piston rod of the multistage push plate oil cylinder.
Preferably, in the filling compression control system, an oil outlet of the external control sequence valve is communicated with an oil return tank.
The invention provides a filling compression control system for a post-filling compression garbage truck, which comprises:
the multi-stage push plate oil cylinder is in driving connection with the push plate, and the push plate is arranged in the carriage and positioned at one end of the carriage space for accommodating goods and is used for pushing out unloading;
the scraper oil cylinder is in driving connection with the scraper, and the scraper is arranged in the carriage and positioned at the other end of the carriage space for accommodating goods and is used for pressing the goods inwards;
the rodless cavity of the multistage push plate oil cylinder is connected with an overflow valve for discharging oil and relieving pressure when the oil pressure reaches a first preset pressure; the rodless cavity of the multistage push plate cylinder is also connected with an external control sequence valve, the external control sequence valve is used for acquiring system pressure, and controlling the rodless cavity of the multistage push plate cylinder to discharge oil and release pressure when the compression pressure in the system reaches a second preset pressure, and the value of the second preset pressure is larger than that of the first preset pressure. According to the filling compression control system provided by the invention, two different control valves are respectively connected to the multistage push plate oil cylinders positioned in the carriage and are respectively used for overflowing in different pressure numerical ranges, so that the precise control of the multistage push plate oil cylinders is realized; specifically, when the oil pressure in the oil cylinder reaches a first preset pressure, the oil is discharged through the overflow valve, so that the piston rod of the multistage push plate oil cylinder is retracted inwards, the thinnest piston rod is prevented from bending and damaging due to overlarge compression loading pressure, meanwhile, when the oil pressure in the system is continuously lifted due to loading pressure and reaches a second preset pressure, the loaded garbage is considered to be fully compressed, and in order to prevent other stages of cylinders of the multistage push plate oil cylinder from being damaged due to continuous pressurization, secondary oil discharge and pressure relief are implemented through the external control sequence valve, so that the stages of cylinders of the multistage push plate oil cylinder are sequentially recovered. Through the design, the structure of the multistage oil cylinder is effectively protected from pressure overload, the sufficiency of garbage compression is guaranteed, the vehicle filling efficiency is guaranteed, other positions and pressure control devices are not required to be introduced, the design and the cost of the system are simplified, and the technical problems that the filling compression system of the existing post-filling compression type garbage truck is difficult to consider filling quantity and durability and the like are effectively solved.
In order to achieve the second purpose, the invention also provides a post-loading compression type garbage truck, which comprises a carriage, a push plate and a scraping plate which are oppositely arranged in the carriage and used for loading, unloading and compressing cargoes, and also comprises any filling compression control system. Because the filling compression control system has the technical effects, the post-filling compression type garbage truck with the filling compression control system also has corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a packing compression control system according to an embodiment of the present invention;
fig. 2 is a schematic partial structure of a packing compression control system according to an embodiment of the present invention.
The figures are marked as follows:
the hydraulic control system comprises a multistage push plate oil cylinder 1, a scraper oil cylinder 2, an overflow valve 3, an external control sequence valve 4, a control oil way 5, an oil return box 6 and a piston rod 7.
Detailed Description
The embodiment of the invention discloses a filling compression control system, which aims to solve the technical problems that the filling compression system of the existing post-filling compression garbage truck is difficult to consider filling quantity, durability and the like.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram of an overall structure of a packing compression control system according to an embodiment of the present invention;
fig. 2 is a schematic partial structure of a packing compression control system according to an embodiment of the present invention.
The embodiment of the invention provides a filling compression control system for a post-filling compression garbage truck, which comprises the following components:
the multi-stage push plate oil cylinder 1 is in driving connection with a push plate, and the push plate is arranged in a carriage and positioned at one end of a carriage space for accommodating goods and is used for pushing out unloading;
the scraper oil cylinder 2 is in driving connection with the scraper, and the scraper is arranged in the carriage and positioned at the other end of the carriage space for accommodating the goods and is used for pressing the goods inwards;
the rodless cavity of the multistage push plate oil cylinder 1 is connected with an overflow valve 3 for discharging oil and relieving pressure when the oil pressure reaches a first preset pressure; the rodless cavity of the multistage push plate cylinder 1 is also connected with an external control sequence valve 4, and the external control sequence valve 4 is used for acquiring system pressure and controlling the rodless cavity of the multistage push plate cylinder to discharge oil and release pressure when the compression pressure in the system reaches a second preset pressure, wherein the value of the second preset pressure is larger than that of the first preset pressure.
According to the filling compression control system provided by the embodiment, two different control valves are respectively connected to the multistage push plate oil cylinder 1 positioned in the carriage and are respectively used for overflowing in different pressure numerical ranges, so that the precise control of the multistage push plate oil cylinder 1 is realized; specifically, when the oil pressure in the oil cylinder reaches a first preset pressure, the oil is discharged through the overflow valve 3, so that the piston rod 7 of the multistage push plate oil cylinder 1 is retracted inwards, the thinnest piston rod 7 is prevented from bending and damaging due to overlarge compression loading pressure, meanwhile, when the oil pressure in the system is continuously lifted due to loading pressure and reaches a second preset pressure, the loaded garbage is considered to be fully compressed, and in order to prevent other cylinder bodies of the multistage push plate oil cylinder 1 from being damaged due to continuous pressurization, the secondary oil discharge and pressure relief are implemented through the external control sequence valve 4, so that the cylinder bodies of the multistage push plate oil cylinder 1 are sequentially recovered. Through the design, the structure of the multistage oil cylinder is effectively protected from pressure overload, the sufficiency of garbage compression is guaranteed, the vehicle filling efficiency is guaranteed, other positions and pressure control devices are not required to be introduced, the design and the cost of the system are simplified, and the technical problems that the filling compression system of the existing post-filling compression type garbage truck is difficult to consider filling quantity and durability and the like are effectively solved.
In order to further optimize the above technical solution, it is preferable that, in the above filling compression control system according to the above embodiment, the external control sequence valve 4 is specifically an oil pressure sensing external control sequence valve 4, and a control oil path 5 of the external control sequence valve is communicated with the rodless cavity of the scraper cylinder 2 and is used for picking up the oil pressure of the rodless cavity of the scraper cylinder 2.
In the technical scheme provided by the embodiment, the design of the external control sequence valve 4 is further optimized, the oil pressure sensing external control sequence valve 4 is adopted to communicate the control oil way 5 of the valve with the rodless cavity of the scraper cylinder 2, so that the rodless cavity oil pressure of the scraper cylinder 2 is directly picked up, and the actual operation process of filling garbage and compressing is that,
the scraper cylinder 2 does not have the rod cavity oil to enter and finish the primary compression of the rubbish, then the slide plate cylinder does not have the rod cavity oil to enter, the slide plate mechanism ascends and finishes the secondary compression of the rubbish (at this moment, the scraper cylinder 2 is in the fully extended state); the action of the oil pressure sensing type external control sequence valve 4 occurs in the stage of completing secondary compression in the ascending of the slide plate mechanism, the reaction force of compacting garbage acts on the scraping plate along with the ascending of the slide plate mechanism, and pressure (which is passively generated) is generated in the rodless cavity of the scraping plate oil cylinder 2, the pressure is the external control oil of the oil pressure sensing type external control sequence valve 4, and when the pressure reaches the set value of the external control sequence valve 4, the valve core acts, so that the oil discharge retreating of the rodless cavity of the pushing plate oil cylinder is realized, and the garbage compression is completed. Therefore, the compression pressure of the garbage can be visually represented by the pressure of the rodless cavity of the scraper cylinder 2, and the design is beneficial in that when the compression pressure of the garbage reaches a certain value, the garbage in the bin can be considered to be fully compressed, and the full filling can be ensured by the oil discharge retraction of the push plate cylinder at the moment, so that the incomplete filling compression of the garbage caused by the premature retraction of the multistage push plate cylinder 1 can be prevented.
In order to further optimize the above technical solution, it is preferable, in the above filling compression control system according to the above embodiment, that the first preset pressure is a critical retraction pressure of the piston rod 7 of the multistage push plate cylinder 1; the second preset pressure is the critical retraction pressure of the rodless cavity of the piston rod 7 of the multistage push plate cylinder 1.
In the technical scheme provided by the embodiment, the setting of preset pressure is further optimized, wherein the first preset pressure is the critical retraction pressure of the piston rod 7 of the multistage push plate cylinder 1, and when the oil pressure reaches the first preset pressure, the piston rod 7 of the multistage push plate cylinder 1 is ensured to begin to retract so as to protect the relatively thin piston rod 7; further, the second preset pressure is the critical retraction pressure of the rodless cavity of the piston rod 7 of the multistage push plate cylinder 1, the second preset pressure is the pressure for confirming that the filled garbage is fully compressed, and when the pressure is reached, the sequence valve starts to discharge oil outwards so as to retract.
In order to further optimize the above technical solution, it is preferable that, in the above filling compression control system, an oil outlet of the external control sequence valve 4 is communicated with an oil return tank 6.
Based on the loading compression control system provided in the above embodiment, the invention also provides a post-loading compression type garbage truck, which comprises a carriage, a push plate and a scraping plate which are arranged in the carriage relatively for loading, unloading and compressing cargoes, and any loading compression control system in the above embodiment. Since the post-loading compression type garbage truck adopts the loading compression control system in the above embodiment, the beneficial effects of the post-loading compression type garbage truck are as follows.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer 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 (4)
1. A loading compression control system for a post-loading compression garbage truck, comprising:
the multi-stage push plate oil cylinder is in driving connection with the push plate, and the push plate is arranged in the carriage and positioned at one end of the carriage space for accommodating goods and is used for pushing out unloading;
the scraper oil cylinder is in driving connection with the scraper, and the scraper is arranged in the carriage and positioned at the other end of the carriage space for accommodating goods and is used for pressing the goods inwards;
the hydraulic oil pressure control device is characterized in that a rodless cavity of the multistage push plate oil cylinder is connected with an overflow valve, and is used for discharging oil and relieving pressure when the oil pressure reaches a first preset pressure; the rodless cavity of the multistage push plate cylinder is also connected with an external control sequence valve, the external control sequence valve is used for acquiring system pressure, and controlling the rodless cavity of the multistage push plate cylinder to discharge oil and release pressure when the compression pressure in the system reaches a second preset pressure, and the value of the second preset pressure is larger than that of the first preset pressure;
the first preset pressure is the critical retraction pressure of a piston rod of the multistage push plate oil cylinder; the second preset pressure is the critical retraction pressure of the rodless cavity of the piston rod of the multistage push plate oil cylinder.
2. The packing compression control system according to claim 1, wherein the external control sequence valve is specifically an oil pressure sensing external control sequence valve, and a control oil path of the external control sequence valve is communicated with a rodless cavity of the scraper cylinder for picking up oil pressure of the rodless cavity of the scraper cylinder.
3. The packing compression control system of claim 2, wherein the oil outlet of the externally controlled sequence valve communicates with a return tank.
4. The rear-loading compression type garbage truck comprises a carriage, and a push plate and a scraping plate which are used for loading, unloading and compressing cargoes are oppositely arranged in the carriage; a packing compression control system according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350512.9A CN108361233B (en) | 2018-04-18 | 2018-04-18 | Filling compression control system and post-filling compression garbage truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350512.9A CN108361233B (en) | 2018-04-18 | 2018-04-18 | Filling compression control system and post-filling compression garbage truck |
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| Publication Number | Publication Date |
|---|---|
| CN108361233A CN108361233A (en) | 2018-08-03 |
| CN108361233B true CN108361233B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810350512.9A Active CN108361233B (en) | 2018-04-18 | 2018-04-18 | Filling compression control system and post-filling compression garbage truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113027849B (en) * | 2021-01-27 | 2023-10-03 | 长沙中联重科环境产业有限公司 | Compression type garbage truck discharging hydraulic system, control method thereof and compression type garbage truck |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732668Y (en) * | 2004-06-08 | 2005-10-12 | 安徽星马汽车股份有限公司 | Automatic backward device for compression push plate of garbage vehicle |
| CN204568567U (en) * | 2015-01-20 | 2015-08-19 | 重庆耐德新明和工业有限公司 | Double dynamical back-loading type waste compacting vehicle |
| CN208364507U (en) * | 2018-04-18 | 2019-01-11 | 安徽星马专用汽车有限公司 | A kind of filling compaction control system and rear-loading compression type garbage truck |
-
2018
- 2018-04-18 CN CN201810350512.9A patent/CN108361233B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732668Y (en) * | 2004-06-08 | 2005-10-12 | 安徽星马汽车股份有限公司 | Automatic backward device for compression push plate of garbage vehicle |
| CN204568567U (en) * | 2015-01-20 | 2015-08-19 | 重庆耐德新明和工业有限公司 | Double dynamical back-loading type waste compacting vehicle |
| CN208364507U (en) * | 2018-04-18 | 2019-01-11 | 安徽星马专用汽车有限公司 | A kind of filling compaction control system and rear-loading compression type garbage truck |
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| CN108361233A (en) | 2018-08-03 |
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