CN104533952B - A kind of self-adjustable hydraulic pressure suspension method - Google Patents
A kind of self-adjustable hydraulic pressure suspension method Download PDFInfo
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- CN104533952B CN104533952B CN201410814700.4A CN201410814700A CN104533952B CN 104533952 B CN104533952 B CN 104533952B CN 201410814700 A CN201410814700 A CN 201410814700A CN 104533952 B CN104533952 B CN 104533952B
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Abstract
The present invention relates to a kind of self-adjustable hydraulic pressure suspension methods, the identical single-stage nozzle flapper of two pairs of structures is selected to carry out the SERVO CONTROL of upper and lower, left and right to the axis of axial workpiece, one pair of them single-stage nozzle flapper is single-stage nozzle flapper I and single-stage nozzle flapper II, another pair are single-stage nozzle flapper III and single-stage nozzle flapper IV, two pairs of single-stage nozzle flappers are connect with feedback rod respectively, and two pairs of single-stage nozzle flappers are respectively connected to external axial workpiece and are formed uniformly four suspension points in axial workpiece periphery.The invention has the following beneficial effects: the SERVO CONTROL of upper and lower, left and right is carried out to axis using two pairs of single-stage nozzle flappers, simultaneously, the upper and lower or left and right displacement that is respectively induced axis of the feedback rod of single-stage nozzle flapper in axis, by position feedback of the axis in high-speed motion to controller, after controller compares the deviation of feedback rod, instruction control feedback rod is issued again, and axis is adjusted back into ideal zero point by four suspension points of axis upper and lower, left and right.
Description
Technical field
The present invention relates to hydraulic pressure suspension technology more particularly to a kind of self-adjustable hydraulic pressure suspension methods.
Background technique
Hydrauservo System is to make the output quantity of system, such as displacement, speed or power can automatically, quickly and accurately
It follows the variation of input quantity and changes, at the same time, output power is significantly amplified.Hydrauservo System is with its response speed
Unique advantages such as degree is fast, load stiffness is big, control power is big are widely used in Industry Control.Hydraulic execution machine
The characteristics of structure has be movement is fast, commutation rapidly, volume and weight much smaller than the electromechanical actuator of equal-wattage volume and
Weight, as the increase of the volume and weight of the increase hydraulic actuating mechanism of power is increased more than electromechanical actuator slow；It passes
It is dynamic steady, strong antijamming capability, especially low-speed performance are good, and the transmitting stationarity of Mechatronic Systems is poor, and vulnerable to electricity
The influence of the various outer interference such as magnetic wave；Speed adjustable range is wide, and power gain is high.
This case it is important to note that usually axial workpiece when high speed rotation or high frequency move forward and backward, all can be by
The rubbing action of axle sleeve, speed is higher, and the harm of this friction is bigger, it further increases the problem of speed at product；For
Overcome this difficulty, it would be desirable to the similar axle sleeve of axis is hanging, so that it is suspended, just do not have frictional force, has liquid now
Press static suspension, magnetic levitation, electromagnetic suspension, the technologies such as pneumatic suspension, they because of respective feature, bearing, gyroscope,
The high-tech areas application such as electric main shaft, but the suspension poor rigidity having is not able to satisfy the requirement of higher speed still, and some such as electromagnetism are outstanding
It is floating because involving great expense, application it is seldom；In these fields, all a kind of suspension skill that suspension rigidity is good, easily fabricated of urgent need
Art.Therefore, in view of the above, needing effectively to innovate the prior art.
Summary of the invention
For disadvantages described above, the present invention provides that a kind of suspendability is more preferable, hydraulic rigid is big, can save manufacturing cost, energy
The self-adjustable hydraulic pressure suspension method of high control precision is proposed, enough to solve many deficiencies of the prior art.
To achieve the above object, the invention adopts the following technical scheme:
A kind of self-adjustable hydraulic pressure suspension method, mainly consists of the following steps:
(1) the identical single-stage nozzle flapper of two pairs of structures is selected to carry out the servo of upper and lower, left and right to the axis of axial workpiece
Control, one pair of them single-stage nozzle flapper is single-stage nozzle flapper I and single-stage nozzle flapper II, another pair are single-stage nozzle flapper
III and single-stage nozzle flapper IV, two pairs of single-stage nozzle flappers are connect with feedback rod respectively, and two pairs of single-stage nozzle flappers are separately connected
Axial workpiece outside to two pairs of single-stage nozzle flappers and four suspension points are formed uniformly in axial workpiece periphery；
(2) simultaneously, the feedback rod of single-stage nozzle flapper is respectively induced axis class in the upper and lower or left and right of axis of axial workpiece
The displacement of the axis of part, by position feedback of the axis of axial workpiece in high-speed motion to controller, controller compares feedback rod
Deviation after, then instruction control feedback rod is issued, by four suspension points of the axis upper and lower, left and right of axial workpiece by axis class zero
The axis of part adjusts back to ideal zero point；
(3) axial workpiece suspends point closed-loop control in ideal zero point by these servos, and is in best suspension position always
It sets.
Self-adjustable hydraulic pressure suspension method of the present invention has the beneficial effect that
(1) SERVO CONTROL of upper and lower, left and right is carried out to the axis of axial workpiece using two pairs of single-stage nozzle flappers, meanwhile,
The feedback rod of single-stage nozzle flapper, will in the displacement of the upper and lower or left and right axis for being respectively induced axial workpiece of the axis of axial workpiece
Position feedback of the axis of axial workpiece in high-speed motion after controller compares the deviation of feedback rod, then is issued to controller
Instruction control feedback rod, adjusts back to reason for the axis of axial workpiece by four suspension points of the axis upper and lower, left and right of axial workpiece
Think zero point；In this way, the axis of axial workpiece is just by these servo suspension points, closed-loop control is in most always in ideal zero point
Good levitation position；Since the intrinsic frequency of single-stage nozzle flapper is up to several kHz, and hydraulic rigid is big, so this suspension skill
Art can make high rigidity, high-precision product；
(2) six, eight etc. more suspension points can also be set, keep the suspendability of product more preferable.
Detailed description of the invention
Below according to attached drawing, invention is further described in detail.
Fig. 1 is the oil cylinder connection schematic diagram of self-adjustable hydraulic pressure suspension described in the embodiment of the present invention.
In figure:
1, single-stage nozzle flapper I；2, single-stage nozzle flapper II；3, single-stage nozzle flapper III；4, single-stage nozzle flapper IV；
5, axial workpiece；6, suspension point；7, feedback rod.
Specific embodiment
As shown in Figure 1, self-adjustable hydraulic pressure suspension method described in the embodiment of the present invention, mainly consists of the following steps:
.(1) the identical single-stage nozzle flapper of two pairs of structures is selected to carry out the servo of upper and lower, left and right to the axis of axial workpiece
Control, one pair of them single-stage nozzle flapper is single-stage nozzle flapper I1 and single-stage nozzle flapper II2, another pair are single-stage nozzle gear
Plate III3 and single-stage nozzle flapper IV4, two pairs of single-stage nozzle flappers are connect with feedback rod 7 respectively, two pairs of single-stage nozzle flappers point
It is not connected to P1, P2, P3, P4 of external axial workpiece 5 and is formed uniformly four suspension points 6 in 5 periphery of axial workpiece；
(2) simultaneously, the feedback rod 7 of single-stage nozzle flapper is respectively induced axis class in the upper and lower or left and right of axis of axial workpiece
The displacement of the axis of part, by position feedback of the axis of axial workpiece in high-speed motion to controller, controller compares feedback rod 7
Deviation after, then instruction control feedback rod 7 is issued, by four suspension points of the axis upper and lower, left and right of axial workpiece by axis class
The axis of part adjusts back to ideal zero point；
(3) axial workpiece 5 suspends point closed-loop control in ideal zero point by these servos, and is in best suspension position always
It sets；Since the intrinsic frequency of single-stage nozzle flapper is up to several kHz, and hydraulic rigid is big, so high rigidity, high-precision can be made
The product of degree.
The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and using this
Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one
As principle be applied in other embodiments without having to go through creative labor.Therefore, this case is not limited to above embodiments, for
The improvement and modification that this case is made all should be in this case protection scopes.
Claims (2)
1. a kind of self-adjustable hydraulic pressure suspension method, which is characterized in that mainly consist of the following steps:
(1) the identical single-stage nozzle flapper of two pairs of structures is selected to carry out the SERVO CONTROL of upper and lower, left and right to the axis of axial workpiece,
One pair of them single-stage nozzle flapper be single-stage nozzle flapper I and single-stage nozzle flapper II, another pair be single-stage nozzle flapper III with
Single-stage nozzle flapper IV, two pairs of single-stage nozzle flappers are connect with feedback rod respectively, and two pairs of single-stage nozzle flappers are respectively connected to two
Four suspension points are formed uniformly to the axial workpiece outside single-stage nozzle flapper and in axial workpiece periphery；
(2) simultaneously, the feedback rod of single-stage nozzle flapper is respectively induced axial workpiece in the upper and lower or left and right of axis of axial workpiece
Axis displacement, by position feedback of the axis of axial workpiece in high-speed motion to controller, controller compares the inclined of feedback rod
After difference, then instruction control feedback rod is issued, by four suspension points of the axis upper and lower, left and right of axial workpiece by axial workpiece
Axis adjusts back to ideal zero point；
(3) axial workpiece suspends point closed-loop control in ideal zero point by these servos, and is in best levitation position always.
2. suspension process according to claim 1, it is characterised in that: setting six or eight suspension points.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410814700.4A CN104533952B (en) | 2014-12-10 | 2014-12-10 | A kind of self-adjustable hydraulic pressure suspension method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410814700.4A CN104533952B (en) | 2014-12-10 | 2014-12-10 | A kind of self-adjustable hydraulic pressure suspension method |
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| Publication Number | Publication Date |
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| CN104533952A CN104533952A (en) | 2015-04-22 |
| CN104533952B true CN104533952B (en) | 2019-06-25 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3704690B2 (en) * | 1994-11-18 | 2005-10-12 | 株式会社安川電機 | Magnetic bearing control device |
| CN101109409B (en) * | 2007-08-10 | 2012-09-05 | 广东工业大学 | Static pressure, static pressure bearing used for high speed precision machine tool principal axis |
| CN101550966A (en) * | 2009-05-14 | 2009-10-07 | 湖南普来得机械技术有限公司 | Aqueous suspension bearings |
| CN101586626B (en) * | 2009-07-08 | 2012-05-02 | 路文忠 | Ultraprecise electrohydraulic servo-controlled dynamic-static pressure bearing and feed mechanism |
| CN102588435A (en) * | 2011-12-27 | 2012-07-18 | 重庆大学 | Driving control sliding bearing |
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