CN104847714B - Flow pressure ratio conversion equipment based on AC hydraulic - Google Patents
Flow pressure ratio conversion equipment based on AC hydraulic Download PDFInfo
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- CN104847714B CN104847714B CN201510191722.4A CN201510191722A CN104847714B CN 104847714 B CN104847714 B CN 104847714B CN 201510191722 A CN201510191722 A CN 201510191722A CN 104847714 B CN104847714 B CN 104847714B
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- nut
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 61
- 230000008859 change Effects 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 4
- 230000003319 supportive effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 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
- F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Transmission Devices (AREA)
Abstract
Flow pressure ratio conversion equipment based on AC hydraulic, belongs to wave transmission hydraulics field.This device includes servomotor, ball-screw, ball nut, spring, piston, flow pressure conversion bins, by servomotor with two-way ball-screw one piece rotation, two ball nut rightabouts above leading screw are driven to move, adjust the angle between the spring that two coefficient of elasticity being fixed between ball nut and piston are identical, then two springs size to being perpendicular to piston area proof resilience coefficient is changed, realize communication flow online, in real time, it is transformed into pressure linearly, export desired ac pressure waveform, adjust the angle between two springs, it is capable of on the premise of identical communication flow regulating conversion coefficient and obtains pressure magnitude diverse ac pressure waveform.This apparatus structure is dexterous, rationally distributed, certainty of measurement is high, solves communication flow pressure linear transformation and problem that conversion coefficient regulates in real time, has good promotional value.
Description
Technical field
The invention belongs to wave transmission hydraulics field, relate to AC hydraulic transmission and control, especially a kind of online exchange flow pressure ratio conversion equipment.
Background technology
Wave transmission hydraulics transmits hydraulic energy by means of the change of periodic pressure and flow, does not generally have net flow in energy transmission loop.Ac hydraulic system, in addition to having smooth, the advantage such as reliable, power is big of general Hydraulic Power Transmission System, also has the advantage of its uniqueness such as: ac hydraulic system can resist difference variation interior in a big way；Utilize isolator can isolate damaged loop, moreover it is possible to be applied to the occasion of intense radiation.Ac hydraulic system is compared with general hydraulic system, and the processing cost of ac hydraulic system is lower, uses less parts, the most do not use precision servo valve, to hydraulic oil require low, contamination resistance is strong.Move back and forth having and the equipment of impact shock mechanism has played very important effect.Actual application need the size according to load that communication flow is transformed into a certain size ac pressure.But, being limited by frame for movement, the online ac pressure that communication flow is transformed in real time is extremely difficult.
At present, the most not for the flow pressure conversion equipment that ac hydraulic system is special.Conversion equipment relates to two key technologies: 1. transformation process is linear, i.e. communication flow is identical with the ac pressure waveform after transformation, undistorted；2. the big I of conversion coefficient regulates in real time, i.e. regulates conversion coefficient on the premise of identical communication flow and can obtain pressure magnitude diverse ac pressure waveform.Owing to not having relevant apparatus can solve above-mentioned two key technology simultaneously, it is impossible to realize the ratio conversion of Online talking flow pressure.
Summary of the invention
It is an object of the invention to: a kind of communication flow pressure conversion device is provided, it is achieved that communication flow and real-time, dynamic, online, the linear scale conversion of pressure, the problem that solution communication flow pressure linear transformation and conversion coefficient regulate in real time.
The technical solution used in the present invention is: flow pressure ratio conversion equipment based on AC hydraulic is made up of two set subsystems, is flow rate pressure conversion bins subsystem and coefficient of elasticity regulon system respectively.Flow rate pressure conversion bins subsystem is made up of flow rate pressure conversion bins 1, conversion bins piston 8 grade.Coefficient of elasticity regulon system, by ball-screw 2, supports collateral holder assembly 3, guide rail 4, fixing collateral holder assembly 5, servomotor 6, servomotor bearing 7, support A9, spring A10 on fixing spring, under fixing spring, support A11, ball-screw nut support A12, ball nut A13, slide block A14, support B15, spring B 16 on fixing spring, under fixing spring, support B17, ball-screw nut support B18, ball nut B19, slide block B 20 grade forms.
The base plate of flow rate pressure conversion bins 1 plays a supportive role, and is used for supporting coefficient of elasticity regulon system；Wherein support the collateral holder assembly of support 3 in coefficient of elasticity regulon system, guide rail 4, fixing collateral holder assembly 5 and servomotor bearing 7 and be fixed on the substrate of flow rate pressure conversion bins 1；Support support A11 under A9 and fixing spring on fixing spring to be used for fixing spring A10, the other end supporting A9 on fixing spring is connected to conversion bins piston 8 by pin, junction forms cylindrical hinge, the other end supporting A11 under fixing spring is connected to ball-screw nut support A12 by pin, and junction forms cylindrical hinge；Equally, support support B17 under B15 and fixing spring on fixing spring to be used for fixing spring B 16, the other end supporting B15 on fixing spring is connected to piston 8 by pin, junction forms cylindrical hinge, the other end supporting B17 under fixing spring is connected to ball-screw nut support B18 by pin, and junction forms cylindrical hinge；Ball-screw nut support A12 is connected by screw rigidity and ball nut A13, support A11 under the upper end of ball-screw nut support A12 and fixing spring to connect, the bottom of ball-screw nut support A12 is fixed on above slide block A14 by screw rigidity, equally, ball-screw nut support B18 is connected by screw rigidity and ball nut B19, supporting B17 under the upper end of ball-screw nut support B18 and fixing spring to connect, the bottom of ball-screw nut support B18 is fixed on above slide block B 20 by screw rigidity；Servomotor 6 is fixed on motor support base 7, is connected by shaft coupling and ball-screw 2；The rotation of ball-screw drives the ball nut A13 above it and ball nut B19 to move round about respectively；Moved round about by ball nut A13 and ball nut B19, drive the angle change between spring A10, spring B 10, change two springs and be perpendicular to the coefficient of elasticity that piston area is total.
The invention have the advantages that: by flow rate pressure conversion bins subsystem and coefficient of elasticity regulon system this device dimerous, communication flow can be transformed into pressure online, in real time, the most linearly, thus export desired ac pressure waveform.By servomotor with ball-screw one piece rotation, the ball nut A above leading screw and ball nut B rightabout is driven to move, adjust the angle being fixed between the spring that ball nut A, two coefficient of elasticity between ball nut B and piston are identical, then two springs size to being perpendicular to piston area proof resilience coefficient is changed, it is achieved communication flow and the conversion of pressure.This apparatus structure is dexterous, rationally distributed, conversion multiple is easy to adjust, has good promotional value.
Accompanying drawing explanation
Fig. 1 is the front view of flow pressure ratio conversion equipment population structure based on AC hydraulic.
Fig. 2 is the top view of flow pressure ratio conversion equipment population structure based on AC hydraulic.
Fig. 3 is the left view of flow pressure ratio conversion equipment population structure based on AC hydraulic.
Fig. 4 is flow pressure ratio conversion equipment population structure normal axomometric drawing based on AC hydraulic.
Fig. 5 is to remove the front view of this device after flow rate pressure conversion bins.
Fig. 6 is to remove the top view of this device after flow rate pressure conversion bins.
Fig. 7 is to remove the left view of this device after flow rate pressure conversion bins.
Fig. 8 is to remove the normal axomometric drawing of this device after flow rate pressure conversion bins.
In figure: 1 flow rate pressure conversion bins；2 ball-screws；3 support collateral holder assembly；4 guide rails；
5 fix collateral holder assembly；6 servomotors；7 servomotor bearings；8 conversion bins pistons；
9 fix support A on spring；10 spring A；11 fix support A under spring；
12 ball-screw nut support A；13 ball nut A；14 slide block A；15 fix support B on spring；
16 spring B；17 fix support B under spring；18 ball-screw nut support B；19 ball nut B；
20 slide block B.
Detailed description of the invention
The detailed description of the invention of the present invention is described in detail below in conjunction with technical scheme and accompanying drawing.
In flow rate pressure conversion bins subsystem, the base plate of flow rate pressure conversion bins 1 plays a supportive role, and is used for supporting coefficient of elasticity regulon system.Support the collateral holder assembly of support 3 in coefficient of elasticity regulon system, guide rail 4, fixing collateral holder assembly 5, servomotor bearing 7, be fixed on the substrate of flow rate pressure conversion bins 1.Liquid flows in container from the input port on flow rate pressure conversion bins 1 top.Teflon seal is passed through in gap between sealing ring and the flow rate pressure conversion bins 1 of conversion bins piston 8, it is possible to realize the low fricting movement of high speed and good sealing property.And conversion bins piston 8 diameter is relatively large, when being passed through liquid, conversion bins piston 8 relative motion displacement is less.
In coefficient of elasticity regulon system, support support A11 under A9 and fixing spring on fixing spring to be used for fixing spring A10, and the other end supporting A9 on fixing spring is connected to piston 8 by pin, junction forms cylindrical hinge, the other end supporting A11 under fixing spring is connected to ball-screw nut support A12 by pin, and junction forms cylindrical hinge；Equally, support support B17 under B15 and fixing spring on fixing spring to be used for fixing spring B 16, and the other end supporting B15 on fixing spring is connected to piston 8 by pin, junction forms cylindrical hinge, the other end supporting B17 under fixing spring is connected to ball-screw nut support B18 by pin, and junction forms cylindrical hinge.Ball-screw nut support A12 is connected by screw rigidity and ball nut A13, supports A11 and connect under the upper end of ball-screw nut support A12 and fixing spring, and the bottom of ball-screw nut support A12 is fixed on above slide block A14 by screw rigidity；Equally, ball-screw nut support B18 is connected by screw rigidity and ball nut B19, supports B17 and connect under the upper end of ball-screw nut support B18 and fixing spring, and the bottom of ball-screw nut support B18 is fixed on above slide block B 20 by screw rigidity.Servomotor 6 is fixed on above motor support base 7, is connected by shaft coupling and ball-screw 2.The rotation of ball-screw drives the ball nut A13 above it and ball nut B19 to move round about respectively.Moved round about by ball nut A13 and ball nut B19, driven the angle between spring A, spring B to change, thus change two springs and be perpendicular to the coefficient of elasticity that piston area is total.And conversion bins piston 8 diameter is relatively large, moving displacement is less, and the coefficient of elasticity that spring A10 and spring B 16 synthesize in being perpendicular to piston 8 bottom surface total can be considered constant such that it is able to it is linear for realizing transformation process.The angle adjusted between two springs is another definite value, and two springs synthesize in being perpendicular to the total coefficient of elasticity in conversion bins piston 8 bottom surface also by change.It is passed through identical communication flow liquid last time, the ac pressure waveform that available pressure magnitude is different.It addition, slide block A14 and slide block B 20 all move above at guide rail 4, the power that ball-screw 2 is subject to is transferred to above guide rail, it is ensured that leading screw linearity and ball nut A13 and the stationarity of ball nut B19 motion.
As shown in accompanying drawing 1～8, during assembling, part kerosene cleans, and dries rear matching surface oiling, and each part not finished surface should clean up, deburring burr, applying preventive by dipping paint.The base plate of flow rate pressure conversion bins 1 plays a supportive role, and is used for supporting coefficient of elasticity regulon system.Wherein support the collateral holder assembly of support 3 in coefficient of elasticity regulon system, guide rail 4, fixing collateral holder assembly 5, servomotor bearing 7, be fixed on the substrate of flow rate pressure conversion bins 1.Spring A10 and spring B 16 that two coefficient of elasticity are identical are separately fixed on fixing spring support A9, support and support B15 on A11 and fixing spring, support between B17 under fixing spring under fixing spring.Support A9 on fixing spring, support A11 under fixing spring and be connected with piston 8 bottom surface respectively with cylindrical hinge form.Support A11 under fixing spring, support B17 lower end under fixing spring and be connected with ball-screw nut support A12 and ball-screw nut support B18 with cylindrical hinge form respectively.Thus can pass through moving left and right of ball nut A13, ball nut B19 and change spring A10 and the coefficient of elasticity total to vertical piston bottom surface that spring B 16 is formed.Conversion bins diameter is relatively big, the less linearity that can ensure that conversion of conversion bins piston movement displacement.
Servomotor 6 uses high precision position to control formula servomotor, and umber of pulse is 10000/circle, and the pitch of leading screw uses 5mm, has higher movement velocity and position control accuracy, it is possible to meet measurement requirement.Open servomotor 6, adjust the angle between spring A10, spring B 16, the angle making both is certain value, owing to piston 8 diameter is the biggest, moving displacement is less, the coefficient of elasticity that spring A10 and spring B 16 synthesize in being perpendicular to piston 8 bottom surface total can be considered constant such that it is able to it is linear for realizing transformation process.And by servomotor 6, adjust angles different between two spring A10, spring B 16, it is possible to achieve two springs synthesize in being perpendicular to the definite value that the total coefficient of elasticity in piston 8 bottom surface is different such that it is able to the size realizing conversion coefficient regulates in real time.
Adjusted two spring angles complete after, liquid is flowed into container from the top of flow rate pressure conversion bins 1, by piston 8 bottom surface coefficient of elasticity regulon system, communication flow is transformed into pressure online, in real time, linearly, exports desired ac pressure waveform.The angle adjusted between two springs is another definite value, now two springs synthesize in be perpendicular to the total coefficient of elasticity in piston 8 bottom surface will be for another one value.The liquid of the identical communication flow of last time it is passed through from the top of flow rate pressure conversion bins 1.Afterwards realize on the premise of identical communication flow, regulate conversion coefficient and obtain pressure magnitude diverse ac pressure waveform.
Additionally, slide block A14, slide block B 20 all move above at guide rail 4, the active force of spring A10, spring B 16 is transferred to above guide rail from ball-screw, it is ensured that leading screw linearity and ball nut A13 and the stationarity of ball nut B19 motion.This measurement apparatus structure is dexterous, easy to operate, low cost of manufacture, has higher using value.
Claims (1)
1. flow pressure ratio conversion equipment based on AC hydraulic, including flow pressure conversion bins (1),
Ball-screw (2), supports collateral holder assembly (3), guide rail (4), fixing collateral holder assembly (5), servo
Motor (6), servomotor bearing (7), conversion bins piston (8), fixing spring supports A (9), bullet
Spring A (10), support A (11) under fixing spring, ball-screw nut support A (12), ball nut A (13),
Slide block A (14), fixing spring supports B (15), spring B (16), supports B (17) under fixing spring,
Ball-screw nut support B (18), ball nut B (19) and slide block B (20)；
It is characterized in that: the base plate of flow rate pressure conversion bins (1) plays a supportive role, be used for supporting elastic system
Number regulon system；Wherein support the collateral holder assembly of the support (3) in coefficient of elasticity regulon system, guide rail
(4), fixing collateral holder assembly (5) and servomotor bearing (7) are fixed on flow rate pressure conversion bins (1)
Substrate；Support support A (11) under A (9) and fixing spring on fixing spring to be used for fixing spring A
(10), the other end that fixing spring supports A (9) is connected to conversion bins piston (8) by pin, even
Meeting place and form cylindrical hinge, the other end supporting A (11) under fixing spring is connected to ball-screw by pin
Nut support A (12), junction forms cylindrical hinge；Equally, fixing spring support B (15) and consolidate
Determine under spring, to support B (17) to be used for fixing spring B (16), fixing spring supports the other end of B (15)
Being connected to piston (8) by pin, junction forms cylindrical hinge, supports the another of B (17) under fixing spring
One end is connected to ball-screw nut support B (18) by pin, and junction forms cylindrical hinge；Ball wire
Thick stick nut support A (12) is connected by screw rigidity and ball nut A (13), ball-screw nut support
Support A (11) under the upper end of A (12) and fixing spring to connect, ball-screw nut support A (12)
Bottom is fixed on slide block A (14) above by screw rigidity, equally, and ball-screw nut support B (18)
Being connected by screw rigidity and ball nut B (19), the upper end of ball-screw nut support B (18) is with solid
Determining to support B (17) under spring to connect, the bottom of ball-screw nut support B (18) is by screw rigidity
It is fixed on slide block B (20) above；Servomotor (6) is fixed on motor support base (7), passes through shaft coupling
Connect with ball-screw (2)；The rotation of ball-screw (2) drives the ball nut A (13) above it respectively
Move round about with ball nut B (19)；By ball nut A (13) and ball nut B (19)
Move round about, drive the angle change between spring A (10), spring B (16), change two
Spring is perpendicular to the coefficient of elasticity that piston area is total.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191722.4A CN104847714B (en) | 2015-04-20 | 2015-04-20 | Flow pressure ratio conversion equipment based on AC hydraulic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191722.4A CN104847714B (en) | 2015-04-20 | 2015-04-20 | Flow pressure ratio conversion equipment based on AC hydraulic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847714A CN104847714A (en) | 2015-08-19 |
| CN104847714B true CN104847714B (en) | 2017-01-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510191722.4A Expired - Fee Related CN104847714B (en) | 2015-04-20 | 2015-04-20 | Flow pressure ratio conversion equipment based on AC hydraulic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847714B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1092997A (en) * | 1965-02-24 | 1967-11-29 | British Aircraft Corp Ltd | Improvements relating to hydraulic servo systems |
| US3866521A (en) * | 1971-05-31 | 1975-02-18 | Ernesto Juan Weber | Control device |
| CN87211601U (en) * | 1987-08-04 | 1988-11-16 | 郑兆虞 | Stepless speed varition machine with cross-flow hydraulic trancsmission |
| CN2180818Y (en) * | 1993-11-30 | 1994-10-26 | 李健成 | Instantaneous hydraulic system ac converter |
| CN2390021Y (en) * | 1999-08-24 | 2000-08-02 | 曹眉苍 | Wave transmission hydraulics engine |
| CN101424282A (en) * | 2008-11-05 | 2009-05-06 | 北京理工大学 | Inclined shaft type hydraulic transformer and voltage transformation method |
| CN103148046A (en) * | 2013-03-14 | 2013-06-12 | 西安交通大学 | Alternating current servo direct-drive supercharged three-layer piston electrohydraulic cylinder and supercharging method |
| CN103267044A (en) * | 2013-05-18 | 2013-08-28 | 大连理工大学 | Hydraulic-driving alternating flow generator |
-
2015
- 2015-04-20 CN CN201510191722.4A patent/CN104847714B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1092997A (en) * | 1965-02-24 | 1967-11-29 | British Aircraft Corp Ltd | Improvements relating to hydraulic servo systems |
| US3866521A (en) * | 1971-05-31 | 1975-02-18 | Ernesto Juan Weber | Control device |
| CN87211601U (en) * | 1987-08-04 | 1988-11-16 | 郑兆虞 | Stepless speed varition machine with cross-flow hydraulic trancsmission |
| CN2180818Y (en) * | 1993-11-30 | 1994-10-26 | 李健成 | Instantaneous hydraulic system ac converter |
| CN2390021Y (en) * | 1999-08-24 | 2000-08-02 | 曹眉苍 | Wave transmission hydraulics engine |
| CN101424282A (en) * | 2008-11-05 | 2009-05-06 | 北京理工大学 | Inclined shaft type hydraulic transformer and voltage transformation method |
| CN103148046A (en) * | 2013-03-14 | 2013-06-12 | 西安交通大学 | Alternating current servo direct-drive supercharged three-layer piston electrohydraulic cylinder and supercharging method |
| CN103267044A (en) * | 2013-05-18 | 2013-08-28 | 大连理工大学 | Hydraulic-driving alternating flow generator |
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| Publication number | Publication date |
|---|---|
| CN104847714A (en) | 2015-08-19 |
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