CN106958554B - Direct feedback digital wobble hydraulic cylinder is driven in a kind of - Google Patents
Direct feedback digital wobble hydraulic cylinder is driven in a kind of Download PDFInfo
- Publication number
- CN106958554B CN106958554B CN201710361745.4A CN201710361745A CN106958554B CN 106958554 B CN106958554 B CN 106958554B CN 201710361745 A CN201710361745 A CN 201710361745A CN 106958554 B CN106958554 B CN 106958554B
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- China
- Prior art keywords
- angular wheel
- hydraulic cylinder
- single blade
- oscillating motor
- way valve
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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
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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- 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)
- Servomotors (AREA)
- Transmission Devices (AREA)
- Actuator (AREA)
Abstract
The invention belongs to hydraulic cylinder technical field, discloses and direct feedback digital wobble hydraulic cylinder is driven in one kind, including：PLC programmable controller, servomotor, feed screw nut pair, three-position four-way valve, angular wheel group, encoder and single blade oscillating motor；Angular wheel group includes：First angular wheel, the second angular wheel and triconic gear；First angular wheel and triconic gear are engaged with the second angular wheel respectively；Servomotor is connected by feed screw nut pair with one end of the spool of three-position four-way valve, and the other end of spool is connected with the first angular wheel, controls poppet shaft to displacement；The shaft of single blade oscillating motor is connected with triconic gear；Encoder is connected with the second angular wheel；The hydraulic fluid port of three-position four-way valve is connected respectively the hydraulic fluid port of single blade oscillating motor, controls its swing.The present invention provides a kind of hydraulic cylinder that can lift control and precision and reliability.
Description
Technical field
The present invention relates to hydraulic cylinder technical field, more particularly to a kind of interior drive direct feedback digital wobble hydraulic cylinder.
Background technology
In commercial Application, often need to obtain big torque reciprocating rotating movement.Currently used mode is to use transmission device
The linear reciprocating motion of linear oil cylinder is converted into reciprocating rotating movement, is also had using vane hydraulic oscillating oil cylinder.Blade
Formula swing hydraulic pressure oil cylinder includes stator, rotor and shaft；Oil pocket is formed between stator and rotor, hydraulic oil is acted on rotor and formed
Torque actuated rotor rotates, by controlling oil pressure direction to form the reciprocally swinging of rotor.Due to can directly oil pressure be converted into putting
Dynamic movement, without extra transmission mechanism, thus with it is compact-sized, mechanical efficiency is high, torque output is steady, handling good etc.
Advantage, can additionally avoid the problem that linear oil cylinder exposed parts easily bring dust into hydraulic system, can be widely applied to warship use
The driving of SAR Antenna Stabilization, the swing of transducer array, the keying of torpedo-launching frame, the defeated bullet of large-scale cannon on sonar
The automatic assembly line of machine, various metallurgical machineries, petrochemical machinery, automobile and refrigerator, robot, and aircraft wing steering engine and ship
Helmsman etc..
So-called digitlization oscillating motor is to be digitized the rotation amount of shaft, its rotation amount can be realized by changing
Digitlization, directly can complete to gather by controller, while the digitlization rotation amount of shaft is also provided for microcomputer.
The signal that can be provided of digitlization oscillating motor is digitized rotation amount, and the signal can by microcomputer or on
Position machine is directly gathered by communication interface.It is many to digitize the achievable mechanism of oscillating motor, can generally use external driving
Acquisition method and interior drive-type acquisition method.But often in order to realize that high-precision acquisition control causes system structure
Complexity, Ability of Resisting Disturbance is poor, and control reliability is accordingly relatively low.
The content of the invention
The present invention, which provides, drives direct feedback digital wobble hydraulic cylinder in a kind of, solve oscillating hydraulic cylinder in the prior art
System structure is complicated, and Ability of Resisting Disturbance is poor, the low technical problem of reliability.
In order to solve the above technical problems, the present invention provides drive direct feedback digital wobble hydraulic cylinder in one kind, including：
PLC programmable controller, servomotor, feed screw nut pair, three-position four-way valve, angular wheel group, encoder and single blade pendulum
Hydrodynamic cylinder pressure；
The angular wheel group includes：First angular wheel, the second angular wheel and triconic gear；Described first
Angular wheel and the triconic gear are engaged with second angular wheel respectively, first angular wheel and described
The rotation trend of triconic gear is opposite；
The servomotor is connected by the feed screw nut pair with one end of the spool of the three-position four-way valve, the valve
The other end of core is connected with first angular wheel, controls the spool axial displacement；
The shaft of the single blade oscillating motor is connected with the triconic gear；
The encoder is connected with second angular wheel；
The hydraulic fluid port of the three-position four-way valve is connected respectively the hydraulic fluid port of the single blade oscillating motor, controls its pendulum
It is dynamic.
Further, the servomotor is connected by spline with the feed screw nut pair.
Further, the shaft of the single blade oscillating motor connects turning for the triconic gear by shaft coupling
Axis.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
The interior drive direct feedback digital wobble hydraulic cylinder provided in the embodiment of the present application, passes through servomotor and screw
Pair of nut pulls the spool of three-position four-way valve, opens hydraulic fluid port, by oil transportation path to single blade oscillating motor, driving hydraulic cylinder
Swing；And by shaft output torque, the triconic gear, second angular wheel, first cone are driven successively
Shape gear rotates, so as to export reactive torque, so as to pull valve core reset, hydraulic fluid port is gradually reduced until closing.So as to fulfill base
In the direct feedback closed-loop control of machine feedback process.During, gather the rotation of the second angular wheel in real time by encoder
Information, so as to obtain the pivot angle of the rotating angle of feed screw nut pair and oscillating motor, this signal is transmitted to PLC PLC technologies
Device is the control system of core, and control system carries out closed-loop control according to displacement and rate request is run, to servomotor, so that
Realize high-precision control operation.Meanwhile with direct feedback closed-loop control coordinate further lifting control accuracy and and reliably
Property.It also based on this, can significantly simplify feedback control structure, avoid the complex hydraulic system being made of multiple hydraulic components
The defects of caused Ability of Resisting Disturbance is poor.
Brief description of the drawings
Fig. 1 is interior drive direct feedback digital wobble hydraulic cylinder structure schematic diagram provided by the invention；
Fig. 2 is schematic diagram of the interior drive direct feedback digital wobble hydraulic cylinder provided by the invention to guiding valve closed-loop control.
Embodiment
The embodiment of the present application drives direct feedback digital wobble hydraulic cylinder by providing in a kind of, solution is put in the prior art
Hydraulic cylinder system structure is complicated, and Ability of Resisting Disturbance is poor, the low technical problem of reliability.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
State technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than the restriction to technical scheme, in the case where there is no conflict, the embodiment of the present application
And the technical characteristic in embodiment can be mutually combined.
Referring to Fig. 1, a kind of interior drive direct feedback digital wobble hydraulic cylinder, including：PLC programmable controller, servo electricity
Machine 1, feed screw nut pair 3, three-position four-way valve 5, angular wheel group, encoder 10 and single blade oscillating motor 9.
The angular wheel group includes：First angular wheel 6, the second angular wheel 7 and triconic gear 8；It is described
First angular wheel 6 and the triconic gear 8 are engaged with second angular wheel 7 respectively, first angular wheel 6
It is opposite with the rotation trend of the triconic gear 8.
The servomotor 1 is connected by the feed screw nut pair 3 with one end of the spool 4 of the three-position four-way valve 5, institute
The other end for stating spool 4 is connected with first angular wheel 6, controls 4 axial displacement of spool.
The shaft 14 of the single blade oscillating motor 9 is connected with the triconic gear 8；
The encoder 10 is connected with second angular wheel 7；
The hydraulic fluid port of the three-position four-way valve 5 is connected respectively the hydraulic fluid port of the single blade oscillating motor 9, controls its pendulum
It is dynamic.
The servomotor 1 is connected by spline 2 with the feed screw nut pair 3.
The shaft 14 of the single blade oscillating motor 9 connects the shaft of the triconic gear 8 by shaft coupling 11.
In general, a stent is set on the three-position four-way valve 5, for fixing taper gear set；Specifically,
Two angular wheels 7 are fixed by the first ball bearing 13 being arranged on stent, and triconic gear 8 is by being arranged on stent
The second ball bearing 12 fix.
Referring to Fig. 2, servomotor l is connected to electric signal, its output shaft rotates clockwise certain angle, and rotation torque passes through
Spline 2, feed screw nut pair 3 are transmitted to spool 4；Because the right end of angular wheel group passes through shaft coupling 11 and single blade oscillating motor 9
It is connected, the rotating secondary 3 rotating power of driving force ratio driving tie rod nuts of driving single blade oscillating motor 9 are much bigger, therefore
Axial movement occurs with movable valve plug 4 for feed screw nut pair 3 under turning effort.
The present embodiment is using negative opening three-position four-way valve flow control, and there are certain dead band, several pulses production of beginning for flow control
Raw a bit of displacement can not connect the high pressure oil at P mouthfuls with A mouthfuls or B mouthfuls.After dead band, servomotor rotates necessarily again
Angle, occurs certain axial displacement again in turning effort bottom spool 4.If spool 4 is moved to the left, P mouthfuls connect with B mouthfuls, A
Mouth is connected with T mouthfuls.High pressure oil at P mouthfuls, passes through the cavity of resorption of B mouthfuls and C mouthfuls inflow oil cylinders.Cavity of resorption is pressurized, and driving hydraulic cylinder turns
Axis 14 rotates counterclockwise, and the shaft 14 of hydraulic cylinder drives angular wheel group to rotate by shaft coupling, and the oil of epicoele passes through A mouthfuls, T mouthfuls
Flow back to fuel tank.When angular wheel group rotates counterclockwise, the nut (position is relatively fixed) with 5 left end of movable valve plug 4 and spool occurs
The oppositely oriented rotation with stepper motor, band movable valve plug 4 moves right under the action of feed screw nut pair 3, and valve port is closed, one
Stepping process terminates.
3 rotating angle of feed screw nut pair detected by the encoder 10 in angular wheel group, this rotation angle and single leaf
The pivot angle of piece oscillating motor 9 is corresponding, this signal is transmitted to the control system using PLC programmable controller as core, control system
System carries out closed-loop control according to operation displacement and rate request to servomotor 1.The hydraulic cylinder that the present embodiment is related to is in movement
Continuous close port at the same time, forms a servo-control system.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
The interior drive direct feedback digital wobble hydraulic cylinder provided in the embodiment of the present application, passes through servomotor and screw
Pair of nut pulls the spool of three-position four-way valve, opens hydraulic fluid port, by oil transportation path to single blade oscillating motor, driving hydraulic cylinder
Swing；And by shaft output torque, the triconic gear, second angular wheel, first cone are driven successively
Shape gear rotates, so as to export reactive torque, so as to pull valve core reset, hydraulic fluid port is gradually reduced until closing.So as to fulfill base
In the direct feedback closed-loop control of machine feedback process.During, gather the rotation of the second angular wheel in real time by encoder
Information, so as to obtain the pivot angle of the rotating angle of feed screw nut pair and oscillating motor, this signal is transmitted to PLC PLC technologies
Device is the control system of core, and control system carries out closed-loop control according to displacement and rate request is run, to servomotor, so that
Realize high-precision control operation.Meanwhile with direct feedback closed-loop control coordinate further lifting control accuracy and and reliably
Property.It also based on this, can significantly simplify feedback control structure, avoid the complex hydraulic system being made of multiple hydraulic components
The defects of caused Ability of Resisting Disturbance is poor.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, can be to the present invention
Technical solution technical scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, it should all cover
Among scope of the presently claimed invention.
Claims (3)
1. direct feedback digital wobble hydraulic cylinder is driven in a kind of, it is characterised in that including：PLC programmable controller, servo electricity
Machine, feed screw nut pair, three-position four-way valve, angular wheel group, encoder and single blade oscillating motor；
The angular wheel group includes：First angular wheel, the second angular wheel and triconic gear；First taper
Gear and the triconic gear are engaged with second angular wheel respectively, first angular wheel and the third hand tap
The rotation trend of shape gear is opposite；
The servomotor is connected by the feed screw nut pair with one end of the spool of the three-position four-way valve, the spool
The other end is connected with first angular wheel, controls the spool axial displacement；
The shaft of the single blade oscillating motor is connected with the triconic gear；
The encoder is connected with second angular wheel；
The hydraulic fluid port of the three-position four-way valve is connected respectively the hydraulic fluid port of the single blade oscillating motor, controls its swing.
2. direct feedback digital wobble hydraulic cylinder is driven in as claimed in claim 1, it is characterised in that：The servomotor leads to
Spline is crossed with the feed screw nut pair to be connected.
3. direct feedback digital wobble hydraulic cylinder is driven in as claimed in claim 1, it is characterised in that：The single blade is swung
The shaft of hydraulic cylinder connects the shaft of the triconic gear by shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361745.4A CN106958554B (en) | 2017-05-22 | 2017-05-22 | Direct feedback digital wobble hydraulic cylinder is driven in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361745.4A CN106958554B (en) | 2017-05-22 | 2017-05-22 | Direct feedback digital wobble hydraulic cylinder is driven in a kind of |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106958554A CN106958554A (en) | 2017-07-18 |
| CN106958554B true CN106958554B (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710361745.4A Expired - Fee Related CN106958554B (en) | 2017-05-22 | 2017-05-22 | Direct feedback digital wobble hydraulic cylinder is driven in a kind of |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10947997B2 (en) * | 2018-04-13 | 2021-03-16 | The Boeing Company | Aircraft hydraulic system with a dual spool valve and methods of use |
| CN108533561A (en) * | 2018-04-13 | 2018-09-14 | 东北大学 | Internal indirect feedback formula digital hydraulic cylinder structure is driven in a kind of |
| CN112112864B (en) * | 2020-10-12 | 2022-09-02 | 辽宁工程技术大学 | Load pressure control type digital fluid cylinder |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166867C (en) * | 1998-10-21 | 2004-09-15 | 杨世祥 | Digital fluid cylinder with self-feedback of torsional helicoid |
| CN2427664Y (en) * | 2000-07-07 | 2001-04-25 | 周泰经 | Microcomputerized speed regulator directed linkage type hydraulic arrangement |
| CN100342143C (en) * | 2004-07-22 | 2007-10-10 | 杨世祥 | Two-stage screw internal foodback digital fluid cylinder |
| CN100370150C (en) * | 2006-04-21 | 2008-02-20 | 孙勇 | Four-edge control valve adaptable for digital oil cylinder or digital oil motor |
| JP4130213B2 (en) * | 2006-06-23 | 2008-08-06 | 株式会社南武 | Cylinder device for removing screw core |
| CN100449158C (en) * | 2006-10-27 | 2009-01-07 | 成都电子机械高等专科学校 | Ratio-variable feedback type digital fluid cylinder |
| CN203176055U (en) * | 2013-02-05 | 2013-09-04 | 焦作市华科液压机械制造有限公司 | Digital oscillating cylinder |
| CN104930014A (en) * | 2015-06-05 | 2015-09-23 | 上海美西为机电设备有限公司 | Digital servo hydraulic cylinder |
| CN106369011A (en) * | 2016-11-25 | 2017-02-01 | 天津尚吉液压设备有限公司 | Swing cylinder with detection feedback function |
| CN206770311U (en) * | 2017-05-22 | 2017-12-19 | 武汉科技大学 | Direct feedback digital wobble hydraulic cylinder is driven in a kind of |
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- 2017-05-22 CN CN201710361745.4A patent/CN106958554B/en not_active Expired - Fee Related
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| CN106958554A (en) | 2017-07-18 |
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Granted publication date: 20180508 Termination date: 20200522 |