CN106884827A - A kind of valve element Direct Action Type Numeric hydraulic cylinder - Google Patents
A kind of valve element Direct Action Type Numeric hydraulic cylinder Download PDFInfo
- Publication number
- CN106884827A CN106884827A CN201710175066.8A CN201710175066A CN106884827A CN 106884827 A CN106884827 A CN 106884827A CN 201710175066 A CN201710175066 A CN 201710175066A CN 106884827 A CN106884827 A CN 106884827A
- Authority
- CN
- China
- Prior art keywords
- valve element
- screw
- output end
- ball
- input
- 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
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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
- 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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
-
- 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
- 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
- F15B2015/1495—Characterised by the construction of the motor unit of the straight-cylinder type with screw mechanism attached to the piston
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention discloses a kind of valve element Direct Action Type Numeric hydraulic cylinder, it is related to technical field of hydraulic pressure, it includes stepper motor, Hooks coupling universal coupling, four-side, ball-screw, piston rod, cylinder body, piston rod is arranged in cylinder body, ball-screw is arranged in the hollow cavity of piston rod by the nut of ball-screw, it is characterized in that, also include valve core position control mechanism, the valve element two ends that the spool position controlling organization is arranged on four-side form valve element input and output end, valve element input is connected by Hooks coupling universal coupling with step motor shaft, valve element output end is affixed with the leading screw of ball-screw.Compared with prior art, spool position controlling organization set by the present invention, its input spring and output end spring can provide pulling force and pressure to guiding valve, valve element is set only to produce mobile without rotating, influence this reduces valve core rotation to control system, the abrasion of element is alleviated, the control accuracy of Numeric hydraulic cylinder is favorably improved.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, more particularly to a kind of valve element Direct Action Type Numeric hydraulic cylinder.
Background technology
Valve-controlled cylinder system is a kind of extensive form of the comparing applied in hydraulic technique, but traditional valve-controlled cylinder system is present
The shortcomings of being difficult to far distance controlled, digital control and Based Intelligent Control.Numeric hydraulic cylinder is digitizing technique and hydraulic technique
With reference to product, changing traditional valve-controlled cylinder system.There is simple structure, low cost due to Numeric hydraulic cylinder, be easy to
The advantages of realizing intelligentized control method, control flexible so that Numeric hydraulic cylinder is widely used in the industrial production.
Current Numeric hydraulic cylinder has various patterns, is all to drive Spool rotating with stepper motor, in the work of ball-screw
Valve element is set to produce displacement under.Although the Numeric hydraulic cylinder simple structure of this form, the valve element of rotation can be to control accuracy
Influence is produced, the abrasion of element is increased.
The content of the invention
The present invention is intended to provide a kind of valve element Direct Action Type Numeric hydraulic cylinder, the Numeric hydraulic cylinder can change existing digital liquid
The technical deficiency of cylinder pressure, also helps the influence for reducing vibrations to valve element.
The object of the invention is realized by following technical proposals：A kind of valve element Direct Action Type Numeric hydraulic cylinder, including stepping electricity
Machine, Hooks coupling universal coupling, four-side, ball-screw, piston rod, cylinder body, also including spool position controlling organization, the piston rod
It is arranged in cylinder body, the ball-screw is arranged in the hollow cavity of piston rod by the nut of ball-screw, the valve element position
Put controlling organization and form valve element input and output end installed in the valve element two ends of four-side, valve element input is by universal
Axle device is connected with step motor shaft, and valve element output end is affixed with the leading screw of ball-screw.
Preferably, the spool position controlling organization is included on valve element symmetrical input spring and feed screw nut
Secondary, output end spring and screw pair, input spring and output end spring are fixed in valve element two ends, and input spring is another
End is affixed with the nut of input screw pair, and the leading screw of input screw pair passes through Hooks coupling universal coupling and stepper motor
Axle is connected, and the output end spring other end is affixed with the nut of output end screw pair, the leading screw of output end screw pair and
The leading screw of ball-screw is affixed.
Compared with prior art, the spool position controlling organization set by the present invention, its input spring and output end bullet
Spring can provide pulling force and pressure to guiding valve, valve element is only produced mobile without rotating, this reduces valve core rotation
Influence to control system, alleviates the abrasion of element, is favorably improved the control accuracy of Numeric hydraulic cylinder.
Brief description of the drawings
Fig. 1 is valve element Direct Action Type Numeric hydraulic cylinder structural representation.
In figure：1- stepper motor interfaces, 2- stepper motors, 3- bolts, 4- Hooks coupling universal couplings, 5- four-side valve bodies, 6-
Input screw pair, 7- input springs, 8- plug screws, 9- valve elements, 10- output end springs, 11- output end feed screw nuts
Pair, 12- bolts, 13- ball-screws, 14- piston rods, 15- cylinder bodies, 16- pipelines, 17- bolts, 18- cylinder heads.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described：
As shown in figure 1, a kind of valve element Direct Action Type Numeric hydraulic cylinder of the present embodiment, mainly by stepper motor 2, universal joint shaft
Device 4, four-side (including four-side valve body 5 and valve element 9), ball-screw 13, piston rod 14, cylinder body 15 and spool position control
Mechanism's composition processed.Spool position controlling organization is included on valve element symmetrical input spring 7 and screw pair 6, output end
Spring 10 and screw pair 11, input spring 7 and output end spring 10 are fixed in the two ends of valve element 9, and input spring is another
End is affixed with the nut of input screw pair 6, and the leading screw of input screw pair 6 passes through Hooks coupling universal coupling 4 and stepping
Motor shaft is connected, and the output end spring other end is affixed with the nut of output end screw pair 11, output end screw pair 11
Leading screw it is affixed with the leading screw of ball-screw 13.
Workflow of the invention is as follows：
(1) hydraulic cylinder stretches out motion
Stepper motor 2 obtains turn signal and turns over corresponding angle, while driving the leading screw of input screw pair 6 suitable
Hour hands are rotated, and are only moved to the left with the nut that leading screw is coordinated and not rotated, drive lower nut to be moved to the left in leading screw, and nut is another
The input spring 7 of one end is stretched accordingly, pulls valve element 9 to move so that valve element 9 is opened, fluid enter hydraulic cylinder without
Rod cavity, hydraulic cylinder can be acted ball-screw 13 while movement, and the rotation of ball-screw can drive output end leading screw spiral shell
Female secondary 11 leading screw is rotated so that the nut of output end screw pair 11 moves right, while output end spring 10 is stretched,
When hydraulic cylinder reaches the position of setting, the spring elongation degree at the two ends of valve element 9 is identical, makes the stress at the two ends of valve element 9 identical, from
And valve element 9 returns to close port in situ and makes hydraulic cylinder stop motion, impulse movement is stretched out this completes a hydraulic cylinder.
(2) hydraulic cylinder recovery movement
Stepper motor 2 obtains turn signal and turns over corresponding angle, while driving the leading screw of input screw pair 6 inverse
Hour hands are rotated, and are only moved right with the nut that leading screw is coordinated, and are moved right in the drive lower nut of input leading screw, nut
The input spring 7 of the other end is compressed accordingly, and band movable valve plug 9 is moved, so that valve element 9 is opened, fluid enters hydraulic cylinder
Rod chamber, hydraulic cylinder can be acted ball-screw 13 while movement, and the rotation of ball-screw can drive output end leading screw
Rotate so that the nut of output end screw pair is moved to the left, while output end spring 10 is compressed, set when hydraulic cylinder is reached
During fixed position, the spring-compressed degree at the two ends of valve element 9 is identical, makes the stress at the two ends of valve element 9 identical, so that valve element 9 returns to original
Position close port makes hydraulic cylinder stop motion, and impulse movement is withdrawn this completes a hydraulic cylinder.
Claims (2)
1. a kind of valve element Direct Action Type Numeric hydraulic cylinder, including stepper motor, Hooks coupling universal coupling, four-side, ball-screw, piston
Bar, cylinder body, the piston rod are arranged in cylinder body, and the ball-screw is arranged on the sky of piston rod by the nut of ball-screw
In the chambers of the heart, it is characterised in that also including valve core position control mechanism, the spool position controlling organization is arranged on four-side
Valve element two ends form valve element input and output end, and valve element input is connected by Hooks coupling universal coupling with step motor shaft, valve element
Output end is affixed with the leading screw of ball-screw.
2. a kind of valve element Direct Action Type Numeric hydraulic cylinder according to claim 1, it is characterised in that the spool position control
Mechanism is included on the symmetrical input spring of valve element and screw pair, output end spring and screw pair, input bullet
Spring and output end spring are fixed in valve element two ends, and the input spring other end is affixed with the nut of input screw pair, defeated
Enter to hold the leading screw of screw pair to be connected with step motor shaft by Hooks coupling universal coupling, the output end spring other end with output terminal filament
The nut of thick stick pair of nut is affixed, and the leading screw of output end screw pair is affixed with the leading screw of ball-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175066.8A CN106884827A (en) | 2017-03-22 | 2017-03-22 | A kind of valve element Direct Action Type Numeric hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175066.8A CN106884827A (en) | 2017-03-22 | 2017-03-22 | A kind of valve element Direct Action Type Numeric hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106884827A true CN106884827A (en) | 2017-06-23 |
Family
ID=59182252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710175066.8A Pending CN106884827A (en) | 2017-03-22 | 2017-03-22 | A kind of valve element Direct Action Type Numeric hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884827A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882795A (en) * | 2017-10-26 | 2018-04-06 | 燕山大学 | A kind of submissive compensating control method of highly integrated property valve-controlled cylinder force control dynamic |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
| CN111043099A (en) * | 2019-11-27 | 2020-04-21 | 北京航空航天大学 | Symmetrical digital hydraulic cylinder |
| CN113819108A (en) * | 2021-09-29 | 2021-12-21 | 辽宁工程技术大学 | Digital spiral swing fluid cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116139A (en) * | 1994-09-26 | 2000-09-12 | Compact Air Products, Inc. | Pneumatically powered linear actuator control apparatus and method |
| CN1724882A (en) * | 2004-07-22 | 2006-01-25 | 杨世祥 | Two-stage screw internal foodback digital fluid cylinder |
| CN1971069A (en) * | 2006-10-27 | 2007-05-30 | 成都电子机械高等专科学校 | Ratio-variable feedback type digital fluid cylinder |
| CN101922484A (en) * | 2010-08-23 | 2010-12-22 | 韶关市伟光液压油缸有限公司 | Digital telescopic oil cylinder with servo rotary valve |
| CN102287416A (en) * | 2011-09-01 | 2011-12-21 | 无锡市长江液压缸厂 | Numeric hydraulic cylinder |
| CN103925400A (en) * | 2014-05-07 | 2014-07-16 | 西安交通大学 | Diaphragm-type pneumatic proportional pressure reducing valve of ball screw driven by servo motor directly |
| CN105058833A (en) * | 2015-08-13 | 2015-11-18 | 天津市泉龙工贸有限公司 | Numerical control hydraulic machine |
| CN105179376A (en) * | 2015-08-13 | 2015-12-23 | 天津市泉龙工贸有限公司 | Numerical-control oil cylinder |
-
2017
- 2017-03-22 CN CN201710175066.8A patent/CN106884827A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116139A (en) * | 1994-09-26 | 2000-09-12 | Compact Air Products, Inc. | Pneumatically powered linear actuator control apparatus and method |
| CN1724882A (en) * | 2004-07-22 | 2006-01-25 | 杨世祥 | Two-stage screw internal foodback digital fluid cylinder |
| CN1971069A (en) * | 2006-10-27 | 2007-05-30 | 成都电子机械高等专科学校 | Ratio-variable feedback type digital fluid cylinder |
| CN101922484A (en) * | 2010-08-23 | 2010-12-22 | 韶关市伟光液压油缸有限公司 | Digital telescopic oil cylinder with servo rotary valve |
| CN102287416A (en) * | 2011-09-01 | 2011-12-21 | 无锡市长江液压缸厂 | Numeric hydraulic cylinder |
| CN103925400A (en) * | 2014-05-07 | 2014-07-16 | 西安交通大学 | Diaphragm-type pneumatic proportional pressure reducing valve of ball screw driven by servo motor directly |
| CN105058833A (en) * | 2015-08-13 | 2015-11-18 | 天津市泉龙工贸有限公司 | Numerical control hydraulic machine |
| CN105179376A (en) * | 2015-08-13 | 2015-12-23 | 天津市泉龙工贸有限公司 | Numerical-control oil cylinder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882795A (en) * | 2017-10-26 | 2018-04-06 | 燕山大学 | A kind of submissive compensating control method of highly integrated property valve-controlled cylinder force control dynamic |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
| CN111043099A (en) * | 2019-11-27 | 2020-04-21 | 北京航空航天大学 | Symmetrical digital hydraulic cylinder |
| CN113819108A (en) * | 2021-09-29 | 2021-12-21 | 辽宁工程技术大学 | Digital spiral swing fluid cylinder |
| CN113819108B (en) * | 2021-09-29 | 2023-07-14 | 辽宁工程技术大学 | Digital spiral swing fluid cylinder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
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| RJ01 | Rejection of invention patent application after publication |