CN220365791U

CN220365791U - Hydraulic control system of garbage truck and garbage truck

Info

Publication number: CN220365791U
Application number: CN202321755558.1U
Authority: CN
Inventors: 周鑫; 倪晓鹤; 万长华; 陈军; 王飞; 黄梓瀛
Original assignee: Luoyang Guangtong Automobile Co ltd; Gree Altairnano New Energy Inc
Current assignee: Luoyang Guangtong Automobile Co ltd; Gree Altairnano New Energy Inc
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-01-19
Anticipated expiration: 2033-07-05

Abstract

The application relates to a hydraulic control system of a garbage truck and the garbage truck, wherein the hydraulic control system of the garbage truck comprises a main oil supply path, a push shovel oil cylinder, a slide plate oil cylinder and a push shovel back pressure valve, a first end of the main oil supply path is connected with an oil tank, and a second end of the main oil supply path is connected with an oil pump; the pushing shovel oil cylinder is connected with the garbage truck pushing shovel to drive the pushing shovel to move; the slide plate oil cylinder is connected with the garbage truck slide plate to drive the slide plate to move; the pushing shovel back pressure valve is connected with the sliding plate cylinder through the detection port to detect the pressure of the sliding plate, and is connected with the pushing shovel cylinder through the first regulation port and the second regulation port, wherein the first regulation port is used for adjusting the moving speed of a piston rod of the pushing shovel cylinder, and the second regulation port is used for adjusting the pressure value of the piston rod of the pushing shovel cylinder. The hydraulic control system of the garbage truck solves the problem that the existing garbage truck cannot effectively compress garbage of different kinds according to different degrees, so that the garbage of different kinds is difficult to reasonably compress.

Description

Hydraulic control system of garbage truck and garbage truck

Technical Field

The application relates to the field of garbage trucks, in particular to a hydraulic control system of a garbage truck and the garbage truck.

Background

The compression garbage truck is a special vehicle integrated with organic, electric and hydraulic systems, and achieves the functions of dumping garbage, crushing or flattening, strongly filling, squeezing garbage into the carriage, compacting, pushing and unloading garbage and the like through special devices such as the carriage, a packer, a sliding plate, a pushing shovel, a tipping bucket, a feeding mechanism and the like. The basic working process of the garbage truck is as follows: the garbage is poured into the filler by the feeding mechanism (a bucket turning tipping mechanism and the like), the sliding plate mechanism acts (the tipping bucket is opened, the sliding plate descends, the tipping bucket is closed, the sliding plate ascends), the sliding plate drives the tipping bucket and the garbage in the tipping bucket to ascend, and after the ascending force of the sliding plate is transferred to the pushing shovel, the sliding plate and the pushing shovel jointly squeeze the garbage positioned between the two, so that the back pressure is generated by the pushing shovel oil cylinder, the garbage can be compressed in a two-way, and the compression is completed. When the rodless cavity of the push shovel oil cylinder reaches a certain value, oil in the rodless cavity of the push shovel oil cylinder is unloaded to an oil return tank, and the push shovel oil cylinder drives the push shovel to retreat.

The current garbage truck can not carry out the effective compression of different degrees according to different kinds of garbage, leads to being difficult to carry out reasonable compression to different kinds of garbage.

Disclosure of Invention

The application provides a hydraulic control system of garbage truck and garbage truck to solve current garbage truck and can't carry out the effective compression of different degree according to different kinds of rubbish, lead to being difficult to carrying out reasonable compressed technical problem to different kinds of rubbish.

In a first aspect, the present application provides a hydraulic control system for a refuse vehicle, comprising:

the oil tank is connected with the first end of the main oil supply path, and the oil pump is connected with the second end of the main oil supply path;

the pushing shovel oil cylinder is connected with the pushing shovel of the garbage truck and used for driving the pushing shovel to move;

the sliding plate oil cylinder is connected with the sliding plate of the garbage truck and used for driving the sliding plate to move, and the push shovel oil cylinder and the sliding plate oil cylinder are arranged on the main oil supply path in parallel;

the pushing shovel back pressure valve is connected with the sliding plate oil cylinder through a detection port to detect the pressure of the sliding plate, the pushing shovel back pressure valve is connected with the pushing shovel oil cylinder through a first regulation port and a second regulation port, the first regulation port is used for adjusting the moving speed of a piston rod of the pushing shovel oil cylinder, and the second regulation port is used for adjusting the pressure value of the piston rod of the pushing shovel oil cylinder.

In one possible implementation manner, a speed regulating valve is arranged at an oil inlet of the push shovel oil cylinder.

In one possible implementation, a first check valve is also connected to the speed valve.

In one possible implementation manner, the hydraulic shovel further comprises a scraper cylinder which is arranged in parallel with the push shovel cylinder, a scraper valve is connected between the scraper cylinder and the main oil supply path, a push shovel valve is connected between the push shovel cylinder and the main oil supply path, and a slide plate valve is connected between the slide plate cylinder and the main oil supply path.

In one possible implementation manner, a first constant-pressure protection valve is connected to the scraper cylinder, and the first constant-pressure protection valve is used for unloading.

In one possible implementation manner, a second constant pressure protection valve is connected to the push shovel oil cylinder, and the second constant pressure protection valve is used for unloading.

In one possible implementation, the main oil supply path is provided with a main pressure protection valve, and pressure values of the main pressure protection valve, the first constant pressure protection valve and the second constant pressure protection valve are arranged in a gradient manner.

In one possible implementation, the hydraulic control system further comprises a pressure display, wherein the pressure display is connected with the push shovel oil cylinder, the slide plate oil cylinder and the scraper oil cylinder to display working pressure values.

In one possible embodiment, the oil tank is connected to the main oil supply line and the oil pump via an oil filter.

In a second aspect, the present application provides a refuse vehicle comprising: the hydraulic control system of a refuse vehicle according to the first aspect.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the hydraulic control system of the garbage truck and the garbage truck, the recycling speed of the pushing shovel oil cylinder can be adjusted through the arrangement of the pushing shovel back pressure valve, so that the compaction degree of garbage in the garbage truck is controlled, the pushing shovel back pressure valve realizes the combined action of the pushing shovel and the sliding plate, the controllability of the compression density of the garbage in the garbage truck is ensured, the control of different operation compactedness of different kinds of garbage is realized, and the operation efficiency is also ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic diagram of a hydraulic control system of a garbage truck according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a back pressure valve of a pushing shovel in a hydraulic control system of a garbage truck according to an embodiment of the present application.

Reference numerals illustrate:

1. a main oil supply path; 2. an oil tank; 3. an oil pump; 4. a push shovel oil cylinder; 5. a slide plate cylinder; 6. a push shovel back pressure valve; 61. a detection port; 62. a first regulation port; 63. a second regulation port; 7. a speed regulating valve; 8. a first constant pressure protection valve; 9. a second constant pressure protection valve; 10. a scraper cylinder; 11. a main pressure protection valve; 12. a pressure display; 13. a system back pressure valve; 14. an oil filter; 15. pushing the shovel valve; 16. a scraper valve; 17. a slide plate valve.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

In order to solve the problem that the existing garbage truck cannot effectively compress garbage of different types according to different degrees, so that the garbage of different types is difficult to compress reasonably; the hydraulic control system of the garbage truck can adjust the recovery speed of the pushing shovel oil cylinder, so that the compaction degree of garbage in the garbage truck is controlled, the pushing shovel back pressure valve realizes the combined action of the pushing shovel and the sliding plate, the controllability of the compression density of the garbage in the garbage truck is ensured, the control of different operation compactedness on different kinds of garbage is realized, and the operation efficiency is also ensured.

Referring to fig. 1-2, an embodiment of the present application provides a hydraulic control system of a garbage truck, including:

the oil tank comprises a main oil supply path 1, wherein a first end of the main oil supply path 1 is connected with an oil tank 2, and a second end of the main oil supply path 1 is connected with an oil pump 3;

the pushing shovel oil cylinder 4 is connected with a pushing shovel of the garbage truck and used for driving the pushing shovel to move;

the sliding plate oil cylinder 5 is connected with a sliding plate of the garbage truck and used for driving the sliding plate to move, and the push shovel oil cylinder 4 and the sliding plate oil cylinder 5 are arranged on the main oil supply path 1 in parallel;

the pushing shovel back pressure valve 6, the pushing shovel back pressure valve 6 is connected with the slide oil cylinder 5 through a detection port 61 to detect the slide pressure, the pushing shovel back pressure valve 6 is connected with the pushing shovel oil cylinder 4 through a first regulation port 62 and a second regulation port 63, the first regulation port 62 is used for adjusting the moving speed of a piston rod of the pushing shovel oil cylinder 4, and the second regulation port 63 is used for adjusting the pressure value of the piston rod of the pushing shovel oil cylinder 4.

The recycling speed of the pushing shovel oil cylinder 4 can be adjusted through the setting of the pushing shovel back pressure valve 6, so that the compaction degree of garbage in the garbage truck is controlled, the pushing shovel back pressure valve 6 realizes the combined action of the pushing shovel and the sliding plate, the controllability of the compression density of the garbage in the garbage truck is ensured, the control of different operation compactedness of different kinds of garbage is realized, and the operation efficiency is also ensured.

The garbage in the garbage truck is pushed into the garbage truck box after the garbage truck is turned over, the garbage is hooked by the scraping plate, the scraping plate is lifted by the sliding plate oil cylinder 5, the garbage in the scraping plate is pushed into the garbage truck box after sliding upwards, and the garbage compaction is completed through the actions. After garbage collection, the existing compressed garbage truck is used for compressing garbage by only one compression ratio in the face of different garbage, for example, collected household garbage and building garbage are compressed and transported by the same compression ratio, and obviously, the garbage is unreasonable.

In this application, if there is a compression ratio requirement for, for example, household garbage, it is desirable that the garbage is carried away as much as possible, and at this time, the push shovel back pressure valve 6 first detects the back pressure actually required by the push shovel cylinder 4 according to the second regulation port 63, and adjusts the opening. The first regulating port 62 carries out real-time regulation according to the pressure of the sliding plate detected by the detecting port 61, synthesizes the actual compression effect and realizes the control of the compression degree of the garbage.

The hydraulic control system of the garbage truck further comprises a scraper cylinder 10 which is arranged in parallel with the push shovel cylinder 4, a scraper valve 16 is connected between the scraper cylinder 10 and the main oil supply path 1, a push shovel valve 15 is connected between the push shovel cylinder 4 and the main oil supply path 1, and a scraper valve 17 is connected between the slide plate cylinder 5 and the main oil supply path 1.

The scraper cylinder 10 is adjusted to work through the scraper valve 16, the scraper cylinder 4 is controlled to work through the scraper valve 15, and the slide cylinder 5 is controlled to work through the slide valve 17, so that the three actions of scraping, sliding and pushing of the garbage truck can be independently performed, different operation modes can be selected according to different operation requirements, for example, the scraper cylinder 4 can be directly received to the largest position through the scraper valve 15, sliding and scraping actions can be performed to the greatest extent, garbage can be extruded into the box body without any resistance, and the garbage box body is filled with the greatest efficiency.

The detection port 61, the first regulation port 62 and the second regulation port 63 on the push shovel backpressure valve 6 are arranged, after the garbage truck starts scraping, sliding and pressing, garbage enters the box body of the garbage truck, the push shovel can be controlled to give out a pressure signal of oil, the pressure signal can be regulated to 0-3Mpa as required, meanwhile, the slide plate can be controlled to give out a pressure signal of oil, the pressure signal can be regulated to 0-12Mpa as required, and of course, in order to ensure the maximum working efficiency, the pressure signals can be all set to 0.

The oil inlet of the push shovel oil cylinder 4 is provided with a speed regulating valve 7, the speed control of pushing out the push shovel oil cylinder 4 is realized through the arrangement of the speed regulating valve 7, and the recovery speed of passive recovery of the push shovel oil cylinder can be set.

The speed regulating valve 7 is further connected with a first one-way valve, wherein the first one-way valve can be connected to the outside of the speed regulating valve 7, the first one-way valve can also be connected to the inside of the speed regulating valve 7, and through the arrangement of the first one-way valve, hydraulic oil in the oil tank 2 can be automatically fed into the push shovel oil cylinder 4 through atmospheric pressure when the push shovel oil cylinder 4 lacks oil in the back pressure recovery process, so that the automatic oil feeding effect is realized.

The scraper oil cylinder 10 is connected with a first constant pressure protection valve 8, and the first constant pressure protection valve 8 is used for unloading. Through the setting of first constant pressure protection valve 8, at the scraper blade in-process of colluding rubbish, through the pressure setting of first constant pressure protection valve 8, can be at the in-process of scraping rubbish, if hard rubbish appears, block the material and shake, in case the pressure value exceeds the setting value of pressure setting, the system can carry out the unloading, has increased the security of system.

The pushing shovel oil cylinder 4 is connected with a second constant pressure protection valve 9, and the second constant pressure protection valve 9 is used for unloading. Through the setting of the second constant pressure protection valve 9, in the garbage recycling process of the sliding plate compression, abnormal conditions occur, such as the failure of the push shovel back pressure valve 6, or the self-clamping of the push shovel oil cylinder 4, or the blockage of the push shovel oil cylinder 4, the second constant pressure protection valve 9 can realize the load release, thereby protecting the push shovel oil cylinder 4 and protecting a hydraulic system. Of course, even after the signal of the sliding plate is interrupted, the pushing shovel pressure oil can be discharged, so that the pushing shovel oil cylinder 4 is further protected, and the power source and the box body of the garbage truck are protected.

The system provided by the application is mainly used for collaborative operation and a single operation system of the compression garbage truck in the garbage scraping, sliding and pressing processes, and the system can act independently and can perform collaborative operation. When different garbage can be subjected to real-time pressure signal setting, the back pressure valve 6 of the push shovel is controlled in real time, different compression ratios of different garbage can be realized, the maximum compaction loading and the maximum loading of the whole vehicle are realized, the first constant pressure protection valve 8 and the second constant pressure protection valve 9 are respectively arranged at the positions of the scraper cylinder 10 and the push shovel cylinder 4, different shelter pressures are set, and the corresponding scraper cylinder 10 and the push shovel cylinder 4 can be independently protected during single action or combined action.

Referring to fig. 1-2, the main oil supply path 1 is provided with a main pressure protection valve 11, and the pressure values of the main pressure protection valve 11, the first constant pressure protection valve 8 and the second constant pressure protection valve 9 are arranged in a gradient manner. Of course, the main pressure protection valve 11 is also used for detecting the pressure of the slide plate, so that the maximum force presses the garbage in the scraper plate to exert the action of the slide plate with the maximum energy, the maximum pressing pressure is formed in the box body of the garbage truck with the back pressure of the push shovel oil cylinder 4, the upper sliding pressure value is taken in the sliding process of the slide plate, the push shovel back pressure valve 6 is opened by the pressure value, the push shovel back pressure valve 6 is opened by the detection port 61, the oil of the push shovel valve 15 leaks into the oil tank 2, the push shovel valve 15 is retracted, and the garbage enters the box body. And determining when the back pressure valve 6 of the push shovel is opened according to the pressure value of the second regulating port 63 of the back pressure valve 6 of the push shovel, wherein the setting of the pressure value of the first regulating port 62 of the back pressure valve 6 of the push shovel greatly pushes the back pressure valve 6 of the push shovel to open and then the back speed of the push shovel oil cylinder 4 is increased, and the actions are combined to complete the compression.

The pressure values of the main pressure protection valve 11, the first constant pressure protection valve 8 and the second constant pressure protection valve 9 are arranged in a gradient mode, main control pressure is arranged in a main system, secondary pressure is arranged on a scraping plate and a pushing shovel, working pressure is formed according to a rodless cavity of an oil cylinder and the set pressure value, the working pressure is complementary to the working pressure, the working pressure and the pushing shovel are protected step by step according to requirements, the maximum working effect of the oil cylinder is achieved, meanwhile, the double functions of protecting the oil cylinder are achieved, mutual protection is achieved, and mutual redundancy is achieved.

The push shovel valve 15, the scraper valve 16 and the slide plate valve 17 are respectively arranged up and down, so that up-and-down actions of the slide plate oil cylinder 5, the scraper oil cylinder 10 and the push shovel oil cylinder 4 are realized, the main pressure protection valve 11 can realize any abnormality of a protection system, and once any action in the system exceeds the pressure value, the system is relieved, and the system immediately enters a protection state.

Through the pressure ratio to pushing away shovel back pressure valve 6 to setting up, realize that the slide is slided up the back, push away shovel hydro-cylinder 4 and retract automatically, realize the pressure compression ratio real time monitoring to in the actual operation, set up speed regulating valve 7 in pushing away the oil feed department of shovel hydro-cylinder 4, it is adjustable to realize pushing out the speed when ejecting the unloading rubbish, be provided with second constant pressure protection valve 9, the protection is in the joint action, when any trouble appears, protect pushing away shovel hydro-cylinder 4, thereby the whole car has been protected, whole car all is in autonomous protection in any operation in-process, the maximized realization self-adaptation operation, the protection to the system maximize in the joint operation has also been realized.

The hydraulic control system of the garbage truck further comprises a pressure display 12, wherein the pressure display 12 is connected with the push shovel oil cylinder 4, the slide plate oil cylinder 5 and the scraper oil cylinder 10 to display working pressure values. The pressure display 12 can display working pressure in real time in three main action systems of the garbage truck, when the maximum set pressure value is exceeded, the system can automatically release load, and at the moment, parking inspection is needed to eliminate the reason of the release load.

The first end of the main oil supply path 1 is connected with the oil tank 2 through the system back pressure valve 13, and the stability of the system is facilitated through the pressure setting of the system back pressure valve 13. The oil tank 2 is connected to the main oil supply path 1 and the oil pump 3 through an oil filter 14, respectively, and the hydraulic oil passing through is filtered through the oil filter 14.

The hydraulic control system of the garbage truck controls the recovery speed of the push shovel oil cylinder 4 through the arrangement of the push shovel back pressure valve 6, and further controls the compaction degree of garbage in the garbage truck box. The pushing shovel valve 15 realizes the combined action of the sliding plate and the pushing shovel, ensures the controllability of the compression density of the garbage and also ensures the operation efficiency; most importantly, the adjustable pressure systems are arranged at the positions of the sliding plate, the scraping plate and the oil cylinder of the pushing shovel, so that the safety of main system operation in the compression operation process is ensured, the operation efficiency is considered, and in the combined action of the sliding plate, the scraping plate and the oil cylinder of the pushing shovel, the sliding plate, the scraping plate and the oil cylinder of the pushing shovel can operate independently of each other and can also operate in combination with each other, and finally, the high efficiency of the whole vehicle operation and the safety in the operation process are realized.

Referring to fig. 1-2, an embodiment of the present application provides a garbage truck, including a hydraulic control system of the garbage truck as described in the previous embodiments.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. 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 application. Thus, the present application 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

1. A hydraulic control system for a refuse vehicle, comprising:

2. The hydraulic control system of the garbage truck according to claim 1, wherein a speed control valve is arranged at an oil inlet of the push shovel oil cylinder.

3. The hydraulic control system of the garbage truck according to claim 2, wherein the speed regulating valve is further connected with a first one-way valve.

4. The hydraulic control system of the garbage truck according to claim 1, further comprising a scraper cylinder arranged in parallel with the push-shovel cylinder, wherein a scraper valve is connected between the scraper cylinder and the main oil supply path, a push-shovel valve is connected between the push-shovel cylinder and the main oil supply path, and a slide plate valve is connected between the slide plate cylinder and the main oil supply path.

5. The hydraulic control system of the garbage truck according to claim 4, wherein the scraper cylinder is connected with a first constant pressure protection valve, and the first constant pressure protection valve is used for unloading.

6. The hydraulic control system of the garbage truck according to claim 5, wherein a second constant pressure protection valve is connected to the push shovel cylinder, and the second constant pressure protection valve is used for unloading.

7. The hydraulic control system of the garbage truck according to claim 6, wherein a main pressure protection valve is provided on the main oil supply path, and pressure values of the main pressure protection valve, the first constant pressure protection valve and the second constant pressure protection valve are set in a gradient manner.

8. The hydraulic control system of the garbage truck of claim 4, further comprising a pressure display coupled to each of the push shovel cylinder, the slide cylinder, and the scraper cylinder to display a working pressure value.

9. The hydraulic control system of a refuse vehicle according to claim 1, characterized in that the oil tank is connected to the main oil supply passage and the oil pump, respectively, through an oil filter.

10. A refuse vehicle comprising a hydraulic control system of the refuse vehicle according to any one of claims 1-9.