CN101813130B - Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube - Google Patents
Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube Download PDFInfo
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- CN101813130B CN101813130B CN201010165658XA CN201010165658A CN101813130B CN 101813130 B CN101813130 B CN 101813130B CN 201010165658X A CN201010165658X A CN 201010165658XA CN 201010165658 A CN201010165658 A CN 201010165658A CN 101813130 B CN101813130 B CN 101813130B
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Abstract
The invention relates to an air flotation device following the motion trail of a lifting point at an overlength distance without being influenced by the disturbing force of an air tube, comprising an air flotation shaft, an air flotation sleeve and a guide track, wherein the air flotation sleeve is sleeved on the air flotation shaft and comprises a left air flotation sleeve and a right air flotation sleeve; the left air flotation sleeve is sleeved at the left side of the air flotation shaft, and the right air flotation sleeve is sleeved at the right side of the air flotation shaft; the middle of the air flotation shaft is provided with a lifting bed; the lifting bed is connected with a lifting rope; the lifting rope moves along with a motion member; a slide block is slidably arranged on the guide track and is fixedly connected with the left air flotation sleeve and the right air flotation sleeve; the slide block is connected with a main air tube; the main air tube is communicated with a left branched air tube and a right branched air tube; the left branched air tube is connected with the left air flotation sleeve, and the right branched air tube is connected with the right air flotation sleeve. The air flotation device effectively prevents the resistance influence generated by the air tube in the frictionless motion process of an air flotation assembly along with the motion member, has good reliability and follows the motion trail of the lifting point at the overlength distance without being influenced by the disturbing force of the air tube.
Description
Technical field
The present invention relates to air-floating apparatus, the straight-line friction-free air floating device of especially a kind of realization.
Background technique
Pneumatic bearing is claimed air-bearing again; Be a kind of bearing, it is through injecting pressurized gas in axocoel, air film just as oiling agent two surface isolation of motion-related; Thereby the air-bearing shafts that is enclosed within the bearing is suspended, and wherein the thickness of air film is between 1 to 10 micron.Relative plain bearing, except non-contact does not have the friction relative movement, pneumatic bearing in higher running accuracy, at a high speed, reduce vibration, shock resistance high, increase the service life, reduce and pollute and the superiority of aspects such as increase axial/radial load capacity.
Be just to disclose a kind of linear drive that contains line motor that utilizes air bearing structure to realize high-precision motion in " air bearing structure and use the linear drive of air bearing structure " of CN200510085338.2 like number of patent application.Number of patent application be CN200610156698.1's " pneumatic bearing and installation method thereof and linear drive " with pneumatic bearing also announced a kind of pneumatic bearing of utilizing, on guide rail, realize the design of no level of friction direction sideslip.Though above-mentioned two patents all relate to the design of linear drive, yet they all pay attention to utilizing the design of the moving control of magnetic air-bearing, do not relate to the servo-actuated design to the long distance of movement parts.
The gas suspension system rotates the field except can be applicable to air-bearing shafts; Because its two surperficial non-contact frictionless characteristic; Also can well be applied to air-bearing shafts and move axially the field; For example be that " air-float magneto motive friction-free suspension device " of CN200710071515.0 discloses and a kind of air-bearing shafts be applied in the air-floating apparatus in vertical frictionless motion field, wherein used two pneumatic bearing to realize the frictionless motion of in the vertical direction axle well at number of patent application.
Except that above-mentioned design, utilize the no frictional behavior of pneumatic bearing, the realization substantially horizontal does not have frictional movement with movement parts, has also obtained very wide application.Scheme as shown in Figure 1 is exactly a kind of: movement parts 1 is lain on air supporting cover 2 (pneumatic bearing); Air supporting cover 2 directly is enclosed within on the air-bearing shafts 3, and pressurized gas overlaps 2 air feed through tracheae 4 to air supporting, thereby produces air film at air supporting cover 2 and 3 of air-bearing shafts; When movement parts 1 when air-bearing shafts 3 axially moves; Require air supporting cover 2 at any time pursuit movement spare 1 do same motion, and do not have friction, thereby avoid the influence that movement parts 1 produced because of friction at air supporting cover 2 and 3 of air-bearing shafts.This type systematic has very important meaning in high-precision motion control and field of measurement.
But for guaranteeing the bearing capacity of air supporting cover, the air gap between air supporting cover and the air-bearing shafts requires to be micron order, so the coaxality requirement on machining accuracy of air-bearing shafts is very high.On the other hand, owing to receive the action of gravity of movement parts, air-bearing shafts, air supporting cover etc., very high to the flexural rigidity requirement of air-bearing shafts material.Along with the increase of movement parts displacement distance, the length of air-bearing shafts increases, because air-bearing shafts is a slender rod piece, guarantee the gap between air-bearing shafts length total length and the air supporting cover, and difficulty of processing is very big.Therefore, can be applied under the extra long distance occasion air-bearing shafts almost can't process.This scheme can realize short-range frictionless motion, almost can't realize for long distance even over distance frictionless motion.Even but the high-precision air-bearing shafts of processing super long distance also can difficultly transport and installation, and be difficult to safeguard, necessary all replacings in case air-bearing shafts goes wrong.
On the other hand, be assurance air supporting, thereby must have the pressurized gas of certain pressure to get into generation air film between axle and the axle sleeve.The tracheae access way has two kinds, is inserted or is inserted by the air supporting cover by air-bearing shafts.For axial motion, adopt usually by air supporting cover air feed, promptly pressurized gas is connected to the air supporting cover through tracheae, thus inboard pore discharge gas generation air film is overlapped in air supporting.This type mode is easy to connect, air consumption is little.If adopt the air-bearing shafts air feed, promptly pressurized gas inserts air-bearing shafts through tracheae, and air-bearing shafts outside pore discharges gas and the air supporting inner room produces air film.This mode is for axial motion; Because air-bearing shafts is more much longer than the air supporting cover, must guarantee all has pore in the whole air supporting cover range of movement, so quantity of gas leakage is big; Along with the length increase leakage rate of air-bearing shafts is very huge, cause to realize on the practical engineering application.Though but adopt which kind of mode air feed, pressurized gas all must connect through tracheae, when air-bearing shafts or air supporting cover axially move; Tracheae also need be taken exercises; Can cause tracheae crooked, because of tracheae has certain rigidity, this just may bring the influence of additional force.The additional force that is produced will inevitably be delivered to movement parts, thereby movement parts spatial position and motion are impacted
Summary of the invention
Can't realize the extra long distance motion in order to overcome existing air-floating apparatus; And have the drag effects of tracheae, the deficiency of poor reliability, the extra long distance that the present invention provides a kind of good pipe disturbance power of not being bullied of drag effects, reliability of effectively avoiding the air supporting assembly to produce with tracheae in the movement parts frictionless motion process to influence is followed the air-floating apparatus of suspension centre movement locus.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of extra long distance of not being bullied the influence of pipe disturbance power is followed the air-floating apparatus of suspension centre movement locus, the gentle empty boasting of air-bearing shafts, and said air supporting cover is sleeved on the said air-bearing shafts; Said air supporting cover comprises left air supporting cover and right air supporting cover, and said left air supporting cover is sleeved on the left side of said air-bearing shafts, and said right air supporting cover is sleeved on the right side of said air-bearing shafts; Holder for hanging household utensiles is installed at said air-bearing shafts middle part; Said Holder for hanging household utensiles is connected with hanging rope, said hanging rope and said movement parts servo-actuated, and said air-floating apparatus also comprises guide rail; Slide block is installed on the said guide rail slidably, and said slide block is fixedlyed connected with left air supporting cover, right air supporting cover; Said slide block is connected with main tracheae, and said main tracheae is communicated with left bronchus, right bronchus, and said left bronchus is connected with said left air supporting cover, and said right bronchus is connected with said right air supporting cover.
Further, said left air supporting cover, right air supporting cover are connected and installed seat respectively, and said mount pad is fixedlyed connected with said slide block.
Further again, said air-floating apparatus also comprises in order to judging that Holder for hanging household utensiles departs from the position transducer whether left and right sides air supporting cover neutral position reaches setting value, and said position transducer is installed between Holder for hanging household utensiles overlaps with left air supporting cover, right air supporting.
Said position transducer is Hall transducer and permanent magnet, and said Hall transducer is installed in said left air supporting cover and right air supporting puts, and said permanent magnet is installed on the Holder for hanging household utensiles.Certainly, also can adopt other position transducers or other non-contact type approach switch such as photoelectric sensor.
Air-bearing shafts does not have the friction servo-actuated according to the movement parts hoisting point position; According to detecting the Holder for hanging household utensiles position; Driving sources such as ACTIVE CONTROL motor move through ball screw, the slide block of all kinds of usual manner control such as band, belt or wire rope synchronously, guarantee that Holder for hanging household utensiles is near two air supporting cover central positions.So just can guarantee that air-bearing shafts remains the nothing friction under the extra long distance situation of movement.
Beneficial effect of the present invention mainly shows: air-bearing shafts does not have the friction servo-actuated according to the movement parts hoisting point position; According to detecting the Holder for hanging household utensiles position; Through driving sources such as motors; Move through ball screw, the slide block of all kinds of usual manner control such as band, belt or wire rope synchronously, guarantee that as far as possible Holder for hanging household utensiles is positioned at two air supporting cover central positions.So just can guarantee that air-bearing shafts remains the nothing friction under the extra long distance situation of movement.
Simultaneously because air-floating apparatus is overlapped air feed through air supporting; And movement parts is fixed on the air-bearing shafts; The power that the tracheae bending produced when therefore device moved only acts on air supporting and puts, and can not be delivered to air-bearing shafts, thereby also can not produce the influence of resistance to the movement parts that is connected to air-bearing shafts.
Description of drawings
Fig. 1 is the schematic representation of existing air-bearing shafts follow-up unit.
Fig. 2 is the structural drawing that extra long distance is followed the air-floating apparatus of suspension centre movement locus that is used for of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 2, a kind of extra long distance of not being bullied the influence of pipe disturbance power is followed the air-floating apparatus of suspension centre movement locus, comprises air supporting cover 2 and air-bearing shafts 3; Said air supporting cover 2 is sleeved on the said air-bearing shafts 3, and said air supporting cover comprises left air supporting cover and right air supporting cover, and said left air supporting cover is sleeved on the left side of said air-bearing shafts; Said right air supporting cover is sleeved on the right side of said air-bearing shafts 3, and Holder for hanging household utensiles 4 is installed at said air-bearing shafts 3 middle parts, and said Holder for hanging household utensiles 4 is connected with hanging rope; Said hanging rope and 1 servo-actuated of said movement parts; Said air-floating apparatus also comprises guide rail 5, on the said guide rail 5 slide block 6 is installed slidably, and said slide block 6 is fixedly connected with left air supporting cover, right air supporting cover; Said slide block 6 is connected with main tracheae 7, and said main tracheae 7 is communicated with left bronchus 8, right bronchus 9, and said left bronchus 8 is connected with said left air supporting cover, and said right bronchus 9 is connected with said right air supporting cover.
Said left air supporting cover, right air supporting cover be connection seat 10 respectively, and said fitting seat 10 is fixedly connected with said slide block 6.
Said air-floating apparatus also comprises in order to judging that Holder for hanging household utensiles departs from the position transducer whether left and right sides air supporting cover neutral position reaches setting value, and said position transducer is installed between Holder for hanging household utensiles overlaps with left air supporting cover, right air supporting.
Said position transducer is Hall transducer 11 and permanent magnet 12, and said Hall transducer 11 is installed in said left air supporting cover and right air supporting puts, and said permanent magnet 12 is installed on the Holder for hanging household utensiles 4.Certainly, also can adopt other position transducers or other non-contact type approach switch such as photoelectric sensor.
Circle can be adopted in the cross section of said air-bearing shafts, also can adopt non-circular cross-section, such as rectangle etc., adopts the non-circular cross-section air-bearing shafts can prevent that axle from rotating.
In the present embodiment, when move with the direction short distance of air-bearing shafts 3 parallel to an axiss on movement parts 1 edge, drag air-bearing shafts 3 axially servo-actuated on air supporting cover 2 immediately.When the position transducer of a certain direction detect Holder for hanging household utensiles near after; Driving sources such as ACTIVE CONTROL motor; Move by the air-bearing shafts same direction of movement through ball screw, the slide block of all kinds of usual manner control such as band, belt or wire rope synchronously, thereby guarantee the neutral position of Holder for hanging household utensiles 4 between two air supporting covers.Occasion for long distance moves at first drives slide block through active drive mechanism and moves, because the characteristic of frictionless motion between air supporting cover and the air-bearing shafts, the moving process of slide block does not impact the spatial position and the motion of air-bearing shafts and movement parts.So will axially grow the no frictional movement grafting of distance dexterously to the slide block guide rail assembly of general precision, can realize that the utmost point floating axle of losing heart moves with the big displacement of movement parts.Simultaneously because air-floating apparatus is overlapped air feed by air supporting, and movement parts is fixed on the air-bearing shafts, and the crooked resistance that produces of tracheae can not be delivered to air-bearing shafts when therefore device moved, thereby can not produce the influence of additional force to movement parts yet.
Because microcontroller on the powerful advantages of real time signal processing and computing function, can be realized the movement parts under the certain speed is carried out good following, and is particularly useful for the workplace of low speed.
Claims (4)
1. the extra long distance of the pipe disturbance power influence of not being bullied is followed the air-floating apparatus of suspension centre movement locus, and it comprises the gentle empty boasting of air-bearing shafts, and said air supporting cover is sleeved on the said air-bearing shafts; It is characterized in that: said air supporting cover comprises left air supporting cover and right air supporting cover, and said left air supporting cover is sleeved on the left side of said air-bearing shafts, and said right air supporting cover is sleeved on the right side of said air-bearing shafts; Holder for hanging household utensiles is installed at said air-bearing shafts middle part; Said Holder for hanging household utensiles is connected with hanging rope, said hanging rope and movement parts servo-actuated, and said air-floating apparatus also comprises guide rail; Slide block is installed on the said guide rail slidably, and said slide block is fixedlyed connected with left air supporting cover, right air supporting cover; Said slide block is connected with main tracheae, and said main tracheae is communicated with left bronchus, right bronchus, and said left bronchus is connected with said left air supporting cover, and said right bronchus is connected with said right air supporting cover.
2. extra long distance of not being bullied the influence of pipe disturbance power as claimed in claim 1 is followed the air-floating apparatus of suspension centre movement locus, it is characterized in that: said left air supporting cover, right air supporting cover be the connection seat respectively, and said fitting seat is fixedly connected with said slide block.
3. according to claim 1 or claim 2 the extra long distance of the pipe disturbance power of not being bullied influence is followed the air-floating apparatus of suspension centre movement locus; It is characterized in that: said air-floating apparatus also comprises in order to judging that Holder for hanging household utensiles departs from the position transducer whether left and right sides air supporting cover neutral position reaches setting value, and said position transducer is installed between Holder for hanging household utensiles overlaps with left air supporting cover, right air supporting.
4. extra long distance of not being bullied the influence of pipe disturbance power as claimed in claim 3 is followed the air-floating apparatus of suspension centre movement locus; It is characterized in that: said position transducer is Hall transducer and permanent magnet; Said Hall transducer is installed in said left air supporting cover and right air supporting puts, and said permanent magnet is installed on the Holder for hanging household utensiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165658XA CN101813130B (en) | 2010-05-07 | 2010-05-07 | Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165658XA CN101813130B (en) | 2010-05-07 | 2010-05-07 | Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube |
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| CN101813130A CN101813130A (en) | 2010-08-25 |
| CN101813130B true CN101813130B (en) | 2012-05-23 |
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| CN201010165658XA Active CN101813130B (en) | 2010-05-07 | 2010-05-07 | Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508304B (en) * | 2013-10-18 | 2015-07-22 | 浙江工业大学 | Constant-force suspension device capable of realizing long-distance two-dimensional follow |
| CN103527553B (en) * | 2013-10-18 | 2016-09-28 | 浙江工业大学 | Two-way constant force output air floating device |
| CN103527554B (en) * | 2013-10-18 | 2015-12-23 | 浙江工业大学 | A kind of nothing friction constant force with volume compensation exports air-floating apparatus |
| CN103523717B (en) * | 2013-10-18 | 2015-12-09 | 浙江工业大学 | Two-dimensional constant force follows erecting by overhang |
| CN103523719B (en) * | 2013-10-18 | 2015-08-05 | 浙江工业大学 | Long-distance 2 D follows constant force erecting by overhang |
| CN111689392A (en) * | 2020-05-18 | 2020-09-22 | 国网河北省电力有限公司晋州市供电分公司 | Intelligent force-bearing tool for power transmission line |
Citations (3)
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|---|---|---|---|---|
| DE4219383A1 (en) * | 1992-06-13 | 1993-12-16 | Bayerische Motoren Werke Ag | Rotary support for motor vehicle axle measurement appts. - receives steerable wheel of vehicle in rotary plate which is supported vertically on base plate using air cushion formed by outlet apertures for compressed air in rotary plate. |
| CN1995771A (en) * | 2006-01-04 | 2007-07-11 | 发那科株式会社 | Method of assembling air bearing, air bearing and linear drive unit equipped with the same |
| CN101126681A (en) * | 2007-09-21 | 2008-02-20 | 浙江工业大学 | Air-float magneto motive friction-free suspension device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025604A (en) * | 2006-07-18 | 2008-02-07 | Oiles Ind Co Ltd | Driving device for air spindle |
| CN201884469U (en) * | 2010-05-07 | 2011-06-29 | 浙江工业大学 | Air floatation device following motion trail of hoisting point for ultra-long distance |
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2010
- 2010-05-07 CN CN201010165658XA patent/CN101813130B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4219383A1 (en) * | 1992-06-13 | 1993-12-16 | Bayerische Motoren Werke Ag | Rotary support for motor vehicle axle measurement appts. - receives steerable wheel of vehicle in rotary plate which is supported vertically on base plate using air cushion formed by outlet apertures for compressed air in rotary plate. |
| CN1995771A (en) * | 2006-01-04 | 2007-07-11 | 发那科株式会社 | Method of assembling air bearing, air bearing and linear drive unit equipped with the same |
| CN101126681A (en) * | 2007-09-21 | 2008-02-20 | 浙江工业大学 | Air-float magneto motive friction-free suspension device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-25604A 2008.02.07 |
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| CN101813130A (en) | 2010-08-25 |
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Effective date of registration: 20191224 Address after: Room 207, main office building, No.118 Longxing Road, Haining Economic Development Zone, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Economic Development Industrial Park Development and Construction Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20191224 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310014 City Zhaohui District Six Patentee before: Zhejiang University of Technology |