CN1923501A - Hydraulic controller - Google Patents

Hydraulic controller Download PDF

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Publication number
CN1923501A
CN1923501A CNA2006101118824A CN200610111882A CN1923501A CN 1923501 A CN1923501 A CN 1923501A CN A2006101118824 A CNA2006101118824 A CN A2006101118824A CN 200610111882 A CN200610111882 A CN 200610111882A CN 1923501 A CN1923501 A CN 1923501A
Authority
CN
China
Prior art keywords
valve
hydraulic
hydraulic controller
controller according
scalable cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2006101118824A
Other languages
Chinese (zh)
Inventor
米歇尔·安格洛·马查多·达马塞诺
路易斯·罗伯托·西蒙斯·罗查
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sauer Danfoss Hidraulica Mobil Ltda
Original Assignee
Sauer Danfoss Hidraulica Mobil Ltda
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sauer Danfoss Hidraulica Mobil Ltda filed Critical Sauer Danfoss Hidraulica Mobil Ltda
Publication of CN1923501A publication Critical patent/CN1923501A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B65F3/24—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle
    • B65F3/28—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle by a lengthwise movement of a wall, e.g. a plate, a piston, or the like
    • 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
    • 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
    • B65F3/20—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle with charging pistons, plates, or the like
    • 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
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/555—Pressure control for assuring a minimum pressure, e.g. by using a back pressure valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/783—Sequential control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

The present invention privilege order described herein intends to solve the still ongoing technical problems, by proposing a hydraulic directional control. The hydraulic directional control proposed herein provides, besides the already existing items, one pilot pressure sequence valve, one pressure vent valve with gauged vent for flux control, and one externally piloted stop valve.

Description

Hydraulic controller
Technical field
The present invention relates to be used for the hydraulic controller of truck and compactor (refuse compactor).
Background technology
The garbage collector that uses on the market shows some and the relevant problem of compacting rubbish ability with compacting machine,, obtains the problem of every cubic metre of higher waste density of container (12) in collecting operating process that is.Be installed in collecting cart inside because be used to drive the force and work rate transmitting device of system for compacting, hydraulic system mainly utilizes the increase of hydraulic pressure to obtain bigger hydraulic power at work, and the result has obtained bigger power when compressing rubbish.Because mechanical resistance restriction container has been obeyed in very big making every effort to overcome under the situation of such resistance, the truck structure may be damaged.Can occur in also that residue goods in the container 12 distribute unequally and application conditions causes some discomfort of driver with the characteristic (for example scalable cylinder and hydraulic cylinder directional control valve) of hydraulic product.Yet owing to lack uniformity, residue is compressed brokenly and accumulated in some in container, so goods is distributed unequally and causes the problem of automobile front-axle and rear axle.
Another technical problem of finding is, as handling the operator who does not specify the part of appliance that is used to compress residue, he may concentrate more substantial residue in container, cause container to look and expand, and this is commonly referred to " rubber nipple (rubber nipple) " effect.Problem is that the expansion of container at the top is helpless to compress residue, and this can damage the overall structure of truck/gatherer and owing to its weight is damaged road.
The operator of gatherer and residue compacting machine attempts to address these problems to the restriction that surpasses the truckmaker appointment by increasing the density of cargo, the operator works with the truck of expansion, that is to say, the operator works with the container that is in the density of cargo limit and prepare to unload on the volume and weight meaning, has exceeded the density of cargo that equipment/vehicle and road allow.
Because to the not control of distribution of goods in the container 12, the residue load that the operator collects mainly concentrates on rear axle, therefore causes driver's discomfort, simultaneously also dangerous when steering vehicle, entail dangers to is to the service life of equipment and the maintenance of road in addition.The operator attempts to solve the problem that this is caused by " rubber nipple " effect, and described problem takes place when when the operator drives directional valve and cover board arrangement and closes the hydraulic oil of scalable cylinder being discharged into opening.Owing to not being is used to this purpose for compressing the mechanical part that residue designs, this driving and the service life of action entail dangers to equipment and operator's safety.
In order to address this problem, patent application PI0006713-0 has proposed a kind of directing controller with priority valve and pressure-compensated valve, and the feasible pressure that is produced in scalable cylinder by the action of squeeze operation is constant and different level (the stage)/area that does not rely on scalable cylinder in this process.This pressure changes according to the size of the area of the scalable cylinder in thrust and the work.The result has obtained residue is compressed uniformly.Yet " rubber effect " still can take place in this manner.
Summary of the invention
Under the technique known situation, hydraulic system comprises:
Hydraulic pump;
Hydraulic oil container;
The hydraulic actuation cylinder; And
Scalable hydraulic cylinder.
Right of the presently claimed invention described herein mainly is at solving the problems of the prior art, therefore proposing a kind of hydraulic pressure directing controller.
Except existing parts, hydraulic pressure directing controller of the present invention provides the pilot pressure sequence valve, has had the pressure-compensated valve and the external orientation maintaining valve of the calibration hole of control liquid stream.
Description of drawings
Under helping, the accompanying drawing of specification will be better appreciated by the present invention, wherein:
Fig. 1 represents the side view of refuse collection truck 1, wherein points out out the position of hydraulic controller 2;
Fig. 2 represents the stereogram of hydraulic controller 2;
Fig. 3 represents the stereogram of hydraulic controller 2 another angles;
Fig. 4 represents to indicate the cutaway view of the hydraulic controller 2 of outside and/or inner pilot pressure sequence valve 21;
Fig. 5 represents the cutaway view of hydraulic controller 2, and wherein the position of the pressure-compensated valve 22 of the calibration hole that is useful on the control flow is provided in prompting;
Fig. 6 represents to be called as the cutaway view of the guiding maintaining valve 20 of " anti-rubber nipple valve ", and wherein all elements can both be observed;
Fig. 7 represents the side sectional view of hydraulic controller 2, wherein points out out the position of guiding maintaining valve 20;
Fig. 8 represents the side sectional view of hydraulic controller 2, wherein points out out when not using guiding maintaining valve 20, is substituted by cover board arrangement 24;
Fig. 9 represents hydraulic system 3, wherein points out out the position of the guiding maintaining valve 20 that is called as " anti-rubber nipple " and the position of external orientation priority valve 21;
Figure 10 represents hydraulic system 3, wherein points out out the position of the guiding maintaining valve 20 that is called as " anti-rubber nipple " and the position of inner pilot pressure sequence valve 21;
In some applications, the use that is called as " anti-rubber nipple " guiding maintaining valve is dispensable.
Figure 11 represents hydraulic system 3, wherein points out out the position (hydraulic circuit) of cover board arrangement 24 and external orientation pressure-regulating valve 21;
Figure 12 represents hydraulic system 3, wherein points out out the position of cover board arrangement 24 and inner pilot pressure control valve 21.
The specific embodiment
Guiding maintaining valve (piloted retention valve) 20 comprises valve body 23, buffer 24, guiding tube joint 25, piston 26, limiter 27, plunger 28 and spring 29.Effect by spring 29 remains against piston 26 on the center of valve body 23.Its function is to allow liquid to flow freely and stop liquid oppositely to pass through in a direction.It should be noted that on unallowed flow direction increased pressure makes piston 26 lean against on the center on the piston 26, therefore strengthened obstruction.
Utilize two valves, promptly outside and/or inner pilot pressure sequence valve 21 and have the pressure-compensated valve 22 of the calibration hole of control liquid stream, when operating on low voltage basically, we can reach out for the increase (every cubic metre higher residue density) of goods.Two valves all are the parts that cause hydraulic control in the scalable cylinder.Under hydraulic pilot by the hydraulic cylinder 11 of compacting machine, the pressure that outside and/or inner pilot pressure sequence valve 21 is used for producing at scalable cylinder is discharged into the pressure-compensated valve 22 of the calibration hole with control liquid stream, be used to keep the pressure stability that generates and control this pressure so that the minimizing minimum of the pressure that produces, and in operation the level (stage) of scalable cylinder is shunk back in a small amount.When the amount of shrinking back of the level of described scalable cylinder when being released, the volume of container 12 increases, and that is to say, the bigger volume of establishment is so that can the more residue of compacting container 12 in.Pressure-compensated valve 22 with calibration hole keeps the control to the hydraulic pressure that causes in scalable cylinder.As the result of the thrust that applies, can according to work in scalable cylinder the level area draw the pressure that this causes.Because this valve work is in constant and uniform thrust of each level acquisition of scalable cylinder.We infer, opposite with current notion, current notion is not to keep the control of the pressure introduced by pressure compensation but pressure is discharged oil sump tank, the pressure-compensated valve 22 that has calibration hole by utilization, because the process of shrinking back of scalable cylinder is minimized, obtained thrust is better controlled, therefore increased every cubic metre of density of collecting residue in the container 12.This means and can adjust thrust keeping and to guarantee that the residue goods that compresses is compatible with equipment/vehicle 1, and therefore compatible with the road of use.
Maintenance also can directly be controlled shrinking back of scalable cylinder to the control of introducing the compensation of pressure in the scalable cylinder.This has also greatly promoted the distribution of compression and compacted residue, and provides better security and driving condition for vehicle 1.All these make the abundance of main hydraulic coupling become possibility and since high-performance compress and can reduce main hydraulic coupling.By thrust being limited to again a lower value, we will reduce to the thrust of container 12 structures aspect technology and security two for the complete acceptable value of the work of equipment.The characteristics of this hydraulic controller meet the design specification of vehicle/equipment 1, and help compacted goods and distribute better between the front axle of vehicle 1 and rear axle.
Guiding keeps selector valve 20 that so-called " anti-rubber nipple (anti-rubber nipple) " effect is provided.The opening that guiding maintaining valve 20 allows only to lead to the hydraulic oil path of scalable cylinder and therefore leads to scalable cylinder, thus if the cover board arrangement of compacting machine 13 is opened, can compacted residue be discharged to the outside of container 12 by spraying system 14.This is because the hydraulic coupling of being introduced by hydraulic cylinder 11 of opening cover board arrangement 13 is to have produced to discharge liquid stream to open the guiding hydraulic coupling of scalable cylinder.For this situation can be taken place, the directed hydraulic valve in the fluid pressure line between the guiding pipeline of the hydraulic cylinder of lifting cover board arrangement 13 and the maintaining valve 20 that leads is essential.Cover board arrangement must be mechanically and/or is driven this directional valve electrically.When cover board arrangement 13 was closed, the guiding pipeline of guiding maintaining valve 20 must be connected to hydraulic oil container.
Obviously, to those skilled in the art, the present invention can propose a lot of other and not break away from the embodiment of the spirit and scope of the present invention.Must understand the present invention can implement with previously described embodiment especially.
Therefore it must be understood that the example here is the description of this invention rather than limitation of the invention, and the present invention should not limit by the details that this document provided, but can within scope that related right requires and equivalent, revise.

Claims (10)

1, a kind of hydraulic controller is characterized in that, comprise the pilot pressure sequence valve, have the pressure exhaust valve of the calibration hole that is used for flow-control, and the external orientation stop valve.
2, hydraulic controller according to claim 1 is characterized in that, guiding operating pressure control valve (21) and have the outside and/or inner use of pressure exhaust valve (22) of the calibration hole of the flow-control when being used to increase load.
3, hydraulic controller according to claim 1 and 2 is characterized in that, described valve is controlled at the hydraulic coupling that causes in the scalable cylinder.
4, hydraulic controller according to claim 1 is characterized in that, and is outside and/or internally use guiding operating pressure control valve (21), makes the level rollback of scalable cylinder.
5, hydraulic controller according to claim 4 is characterized in that, when outside and/or internally use guiding operating pressure control valve (21) were shunk back the level of scalable cylinder, the volume in the container 12 increased.
6, hydraulic controller according to claim 1 is characterized in that, the pressure exhaust valve (22) with calibration hole keeps hydraulic coupling to be controlled and can change according to the function of scalable cylinder level area.
7, hydraulic controller according to claim 1 is characterized in that, though the area of scalable cylinder level, the thrust that described valve remains unchanged.
8, a kind of hydraulic controller is characterized in that, residue is evenly compressed in entire container (12), and the residue load that thrust is set to keep and guarantees to compress is compatible with equipment/vehicle (1) and therefore compatible with the transport routes that use.
9, hydraulic controller according to claim 1 is characterized in that, guiding stop valve (20) can produce what is called " anti-rubber nipple " effect.
10, hydraulic controller according to claim 9, it is characterized in that, if the cover plate of compacting machine (13) is opened, guiding stop valve (20) only allows the hydraulic oil path to enter scalable cylinder, thereby enters the opening of scalable cylinder by the outside spraying system (14) of container (12).
CNA2006101118824A 2005-09-02 2006-08-31 Hydraulic controller Pending CN1923501A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0504163 2005-09-02
BR05041635 2005-09-02

Publications (1)

Publication Number Publication Date
CN1923501A true CN1923501A (en) 2007-03-07

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Application Number Title Priority Date Filing Date
CNA2006101118824A Pending CN1923501A (en) 2005-09-02 2006-08-31 Hydraulic controller

Country Status (7)

Country Link
US (1) US20070062367A1 (en)
EP (1) EP1760327A3 (en)
CN (1) CN1923501A (en)
AR (1) AR055402A1 (en)
CO (1) CO5890005A1 (en)
MX (1) MXPA06009891A (en)
PE (1) PE20070577A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108529097A (en) * 2018-06-13 2018-09-14 东莞海特帕沃液压科技有限公司 A kind of control valve for compression type garbage truck
CN109607001A (en) * 2018-12-29 2019-04-12 福建龙马环卫装备股份有限公司 A kind of kitchen waste cart push plate unloading control method
CN111561487A (en) * 2020-06-17 2020-08-21 朱金和 Sequence valve sealing structure and model selection for engineering machinery

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109538555B (en) * 2018-12-04 2023-10-13 潍柴(扬州)特种车有限公司 Energy-saving hydraulic system of garbage compression vehicle
CN111153088A (en) * 2020-02-07 2020-05-15 邵延荣 Control device for filling mechanism of compression type garbage truck
CN112429443B (en) * 2020-11-20 2022-06-14 长沙中联重科环境产业有限公司 Push shovel unloading control method of compression type garbage truck, medium and electronic equipment

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108529097A (en) * 2018-06-13 2018-09-14 东莞海特帕沃液压科技有限公司 A kind of control valve for compression type garbage truck
CN108529097B (en) * 2018-06-13 2019-11-01 河北极驰新能源科技有限公司 A kind of control valve for compression type garbage truck
CN109607001A (en) * 2018-12-29 2019-04-12 福建龙马环卫装备股份有限公司 A kind of kitchen waste cart push plate unloading control method
CN109607001B (en) * 2018-12-29 2021-11-30 福建龙马环卫装备股份有限公司 Kitchen garbage truck push plate unloading control method
CN111561487A (en) * 2020-06-17 2020-08-21 朱金和 Sequence valve sealing structure and model selection for engineering machinery

Also Published As

Publication number Publication date
AR055402A1 (en) 2007-08-22
PE20070577A1 (en) 2007-07-12
EP1760327A2 (en) 2007-03-07
CO5890005A1 (en) 2008-02-29
EP1760327A3 (en) 2007-12-05
MXPA06009891A (en) 2007-03-21
US20070062367A1 (en) 2007-03-22

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Open date: 20070307