WO2022019800A1 - Трёхпозиционный силовой пневмо- или гидроцилиндр - Google Patents
Трёхпозиционный силовой пневмо- или гидроцилиндр Download PDFInfo
- Publication number
- WO2022019800A1 WO2022019800A1 PCT/RU2020/000392 RU2020000392W WO2022019800A1 WO 2022019800 A1 WO2022019800 A1 WO 2022019800A1 RU 2020000392 W RU2020000392 W RU 2020000392W WO 2022019800 A1 WO2022019800 A1 WO 2022019800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pistons
- rod
- housing
- piston
- sleeve
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000126 substance Substances 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
- F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops
-
- 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
- F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
Definitions
- NAME OF THE INVENTION Three-position power pneumatic or hydraulic cylinder.
- SUBSTANCE invention relates to volumetric pneumatic or hydraulic drives, specifically, to devices of pneumatic (hydraulic) cylinders and can be used in robotic production lines, drives of mechanisms for various purposes, including vehicle transmissions.
- a hydraulic actuator for shifting the synchronizer (Patent RU2545543C2).
- the drive comprises a cylinder and a piston configured to move inside the cylinder, delimiting the first and second chambers.
- the volume of the first chamber is the smallest when the actuator is in the first engagement position
- the volume of the second chamber is the smallest when the actuator is in the second engagement position.
- the piston also limits the third chamber in the cylinder, the volume of which is the smallest when the drive is in the neutral position.
- This drive is characterized by technological complexity, in particular, its performance directly depends on the accuracy of creating pressure in a particular chamber.
- a three-position hydraulic cylinder is known (Patent RU2079007C1), containing a housing with windows for connecting to a load and supplying a working fluid, in the cavity of which, closed by covers, there is a piston with a bore and plungers interacting with it and with the covers, characterized in that the plungers are placed in the piston bore , which is equipped with stops that limit their course.
- a finger As a working element interacting with the load, a finger is used, which is placed perpendicular to the longitudinal axis of the body.
- the disadvantage of this design is the impossibility of outputting the working element to the ends of the housing.
- a pneumatic three-position cylinder (Patent NSh 87364V) was chosen, consisting of a body with end caps, two pistons, a rod, channels for supplying the working medium.
- the pistons divide the internal space of the cylinder into three chambers, each piston is made with the possibility of limited movement along the rod due to the central protrusion separating the pistons and peripheral protrusions on the rod, and limited movement inside the body due to the protrusions formed on the inner surface of the body.
- a thrust element is fixed on the rod between two pistons, on which there is an inlet opening of the channel for supplying the working medium (air) to the chamber between the pistons.
- the disadvantages of the known prototype device include the following design features: - Large dimensions due to the presence of the upper end cap.
- the end surface of the protrusion (sleeve) on the rod acts as a piston and, therefore, negatively affects any movement of the rod, that is, to set the rod to medium or neutral, an additional amount of energy (pressure) of the working medium will be required.
- the objective of the invention was to create a device without the above disadvantages.
- the technical result is a simplification of the design and an increase in the reliability, speed and accuracy of the device.
- a three-position pneumatic or hydraulic cylinder consisting of a body with end caps (walls), two pistons, a rod, channels for supplying the working medium, while each piston is made with the possibility of limited movement along the rod due to the central protrusion separating the pistons and peripheral protrusions on rod, and limited movement inside the housing, in which, according to the proposal, the central protrusion is made in the form of a sleeve, and an annular protrusion is made on the inner surface of the housing, while the sleeve and the protrusion form a tight movable joint of the shaft-hole type.
- the proposed solution leads to the formation of four chambers inside the body, formed by end caps (walls), two pistons and a partition formed by a sleeve and an annular ledge.
- a protrusion is any part, such as a bushing, part of a body or rod, that limits the movement of the pistons.
- the channels for supplying the working medium are made as follows: separate channels into the chambers formed by each of the pistons and the corresponding end (end cover) of the housing, and a common channel into the chambers formed by each of the pistons and the central ledge and sleeve.
- the channels for supplying the working medium are made as follows: separate channels into the chambers formed by each of the pistons and the central protrusion and sleeve end of the body, and a common channel into the chambers formed by each of the pistons and the corresponding end (end cover) of the body.
- an addition is possible - fixing at least one finger to interact with the load, placed at an angle to the axis of the rod in the bore of the annular protrusion.
- a variant of the implementation of the device is possible, in which only the above element - a finger is provided for interaction with the load.
- FIG. 1 shows a longitudinal section of a cylinder in a first preferred embodiment, center (middle) position.
- FIG. 2 shows a longitudinal section of a cylinder in the first preferred embodiment, rightmost position.
- FIG. 3 and 4 show a longitudinal section of the cylinder in the second preferred embodiment, the central (middle) position with different execution of the channels for supplying the working medium.
- FIG. 5 shows a longitudinal section of a cylinder in a second preferred embodiment, rightmost position.
- FIG. 6 shows a general view of a prototype three-position cylinder with two stem end elements.
- Figure 7 shows a prototype three-position cylinder with two end elements of the rod, disassembled.
- FIG. 8 shows a prototype of a three-position cylinder with one end element of the rod, disassembled.
- a three-position cylinder consists of a body 1, in which a rod is installed, the central part of which is a sleeve 2 of a cylindrical shape with two ledges for pistons 3 and 4, which have free play both inside the cylindrical part of the body 1 and on the sleeve 2, two side covers 5 and 6, end elements of the rod 7, 8 and side pin 9.
- the rod is expediently made of several rigidly connected parts: sleeve 2 made of a material with low sliding friction, end parts 7, 8 with peripheral protrusions and side pin 9.
- the device contains also channels for supplying the working medium (compressed air or liquid) A, B and C.
- FIG. 1 and 2 separate channels A and C into the chambers formed by each of the pistons 3, 4 and the corresponding end of the housing ( covers 5 and 6) can be made in the housing and covers 5 and 6.
- FIG. 3, 4, 5 separate channels A and C into the chambers formed by each of the pistons and the central protrusion and the sleeve end of the body are made in the protrusion of the body 1, and the common channel B into the chambers formed by each of the pistons 3, 4 and the corresponding end (end caps 5, 6) can be made in the wall of the housing 1 (Fig. 3 and 5), or in the sleeve 2 (Fig. 4).
- the device is operable with any number of output elements interacting with the load (end elements 7, 8, pin 9).
- a protruding piston stroke limiter (piston 3, 4) on the sleeve 2 and cover (covers 5, 6) without holes for the rod.
- Fig. eight A prototype of a device with one end element of the rod is shown in Fig. eight.
- the operation of the device in the first preferred embodiment is carried out as follows.
- the occupation of the extreme left position occurs according to the opposite (mirror) principle, relative to the occupation of the extreme right position.
- the device is also operable with any number of output elements interacting with the load (end elements 7, 8, pin 9).
- a protruding piston stroke limiter (pistons 3, 4) on the sleeve 2 and cover (covers 5, 6) without holes for the rod ( Fig. 8) .
- the occupation of the extreme left position occurs according to the opposite (mirror) principle, relative to the occupation of the extreme right position.
- the principle of fixing the rods in the required (shifted) intermediate position relative to the central (middle) position is achieved.
- the principle of operation of the device under liquid pressure is similar to the principle of operation with compressed air, but it is necessary that the channels of the liquid lines without high pressure, at the time of changing the position of the rods, communicate with the main low-pressure liquid line and the expansion tank.
- the prototype device (without finger 9 - Fig. 6, 7, 8) during testing confirmed the performance, the solution of the problem and the achievement of the specified technical result. During trial operation, there were no failures, incomplete inclusions and interruptions. It should also be noted that when any of the three stated positions is occupied, the force of switching on (moving) the rod (and / or pin) is the same, therefore the cylinder can be fully called a power cylinder, while ensuring that all three positions are occupied.
- the device for switching on (moving) is also operable with a low degree of tightness of the connections, but when ensuring force retention in the occupied position (being under the pressure of the working medium), it is necessary to ensure appropriate sealing and sealing in the pistons and side covers.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202080102971.0A CN115989371A (zh) | 2020-07-24 | 2020-07-24 | 三位气动或液压动力缸 |
PCT/RU2020/000392 WO2022019800A1 (ru) | 2020-07-24 | 2020-07-24 | Трёхпозиционный силовой пневмо- или гидроцилиндр |
JP2023504180A JP2023536698A (ja) | 2020-07-24 | 2020-07-24 | 三位置の空気圧又は油圧パワーシリンダ |
US18/017,717 US12104623B2 (en) | 2020-07-24 | 2020-07-24 | Three-position pneumatic or hydraulic power cylinder |
DE112020007454.4T DE112020007454T5 (de) | 2020-07-24 | 2020-07-24 | Pneumatik- oder Hydraulik-Dreistellungs-Kraftzylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2020/000392 WO2022019800A1 (ru) | 2020-07-24 | 2020-07-24 | Трёхпозиционный силовой пневмо- или гидроцилиндр |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022019800A1 true WO2022019800A1 (ru) | 2022-01-27 |
Family
ID=79728904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2020/000392 WO2022019800A1 (ru) | 2020-07-24 | 2020-07-24 | Трёхпозиционный силовой пневмо- или гидроцилиндр |
Country Status (5)
Country | Link |
---|---|
US (1) | US12104623B2 (ru) |
JP (1) | JP2023536698A (ru) |
CN (1) | CN115989371A (ru) |
DE (1) | DE112020007454T5 (ru) |
WO (1) | WO2022019800A1 (ru) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3312146A (en) * | 1964-01-27 | 1967-04-04 | Nord Aviation | Fluid pressure jack with three stable positions |
DE3213758A1 (de) * | 1981-04-16 | 1983-01-27 | Autóipari Kutató Intézet, Budapest | Pneumatischer dreistellungs-schaltantrieb, insbesondere zum schalten der stufen von wechselgetrieben |
WO1992011462A1 (en) * | 1990-12-20 | 1992-07-09 | Saab-Scania Aktiebolag | Operating cylinder and its use in a vehicle gearbox |
CN108980139A (zh) * | 2018-07-24 | 2018-12-11 | 北京理工大学 | 双出杆式紧凑型一体化转向对中液压缸 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2079007C1 (ru) | 1994-02-01 | 1997-05-10 | Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Трехпозиционный гидроцилиндр |
GB2473054A (en) | 2009-08-28 | 2011-03-02 | Gm Global Tech Operations Inc | Synchronizer actuator having a piston that delimits three chambers |
-
2020
- 2020-07-24 CN CN202080102971.0A patent/CN115989371A/zh active Pending
- 2020-07-24 US US18/017,717 patent/US12104623B2/en active Active
- 2020-07-24 JP JP2023504180A patent/JP2023536698A/ja active Pending
- 2020-07-24 DE DE112020007454.4T patent/DE112020007454T5/de active Pending
- 2020-07-24 WO PCT/RU2020/000392 patent/WO2022019800A1/ru active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3312146A (en) * | 1964-01-27 | 1967-04-04 | Nord Aviation | Fluid pressure jack with three stable positions |
DE3213758A1 (de) * | 1981-04-16 | 1983-01-27 | Autóipari Kutató Intézet, Budapest | Pneumatischer dreistellungs-schaltantrieb, insbesondere zum schalten der stufen von wechselgetrieben |
WO1992011462A1 (en) * | 1990-12-20 | 1992-07-09 | Saab-Scania Aktiebolag | Operating cylinder and its use in a vehicle gearbox |
CN108980139A (zh) * | 2018-07-24 | 2018-12-11 | 北京理工大学 | 双出杆式紧凑型一体化转向对中液压缸 |
Also Published As
Publication number | Publication date |
---|---|
US20230304515A1 (en) | 2023-09-28 |
JP2023536698A (ja) | 2023-08-29 |
DE112020007454T5 (de) | 2023-07-13 |
US12104623B2 (en) | 2024-10-01 |
CN115989371A (zh) | 2023-04-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0304210B1 (en) | Double diaphragm pumps | |
US3096966A (en) | Sealed ball valve | |
KR0174574B1 (ko) | 스풀밸브 | |
CN202280689U (zh) | 多级液压缸 | |
SU772478A3 (ru) | Гидравлический домкрат | |
CN111828685A (zh) | 一种隔离式两位三通阀 | |
EP0047613B1 (en) | Apparatus for generating reciprocatory motion | |
WO2022019800A1 (ru) | Трёхпозиционный силовой пневмо- или гидроцилиндр | |
US6145541A (en) | Four-way selector valve | |
EA044923B1 (ru) | Трёхпозиционный силовой пневмо- или гидроцилиндр | |
CN209671596U (zh) | 同步器换挡气缸 | |
EP0428406B1 (en) | Reciprocating actuator | |
JP7026549B2 (ja) | 油圧バルブ | |
EP2844901B1 (en) | Positive drive actuated valve for reciprocating compressor and method | |
RU2601686C2 (ru) | Приводимый в действие текучей средой под давлением двигатель с камерой компенсации давления | |
JPH08326924A (ja) | リップパッキン及びシール構造 | |
JP2000240836A (ja) | 直動型切換弁およびその組立方法 | |
TR2022021687T2 (tr) | Üç konumlu pnömati̇k veya hi̇droli̇k güç si̇li̇ndi̇ri̇ | |
KR102400944B1 (ko) | 폐쇄장치 | |
US260398A (en) | Feank w | |
TW202012816A (zh) | 滑軸式轉換閥的密封構造及其滑軸式轉換閥 | |
CN220522940U (zh) | 一种切换阀及液压系统 | |
US2495395A (en) | Power transmission valve | |
JP3763184B2 (ja) | 切換弁 | |
EP4074987B1 (en) | Four-position switching valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20945877 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202317002092 Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 2023504180 Country of ref document: JP Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20945877 Country of ref document: EP Kind code of ref document: A1 |