CN101832336B - Long-distance air-flotation linear guide rail unaffected by air pipe disturbance - Google Patents
Long-distance air-flotation linear guide rail unaffected by air pipe disturbance Download PDFInfo
- Publication number
- CN101832336B CN101832336B CN2010101656024A CN201010165602A CN101832336B CN 101832336 B CN101832336 B CN 101832336B CN 2010101656024 A CN2010101656024 A CN 2010101656024A CN 201010165602 A CN201010165602 A CN 201010165602A CN 101832336 B CN101832336 B CN 101832336B
- Authority
- CN
- China
- Prior art keywords
- air
- apart
- air supporting
- cover
- bearing shafts
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention relates to a long-distance air-flotation linear guide rail unaffected by air pipe disturbance, comprises an air flotation shaft and at least two air flotation sleeves, wherein the air flotation sleeves are sleeved on the air flotation shaft and are both connected with an air storage sleeve in a sealing way; the air storage sleeve is connected with a guide bearing member which is in follow-up with a moving member; the long-distance air-flotation linear guide rail also comprises a long-distance linear guide rail which is used for providing support and guidance for long-distance motion, wherein a sliding block can be slidably arranged on the long-distance linear guide rail and fixedly connected with the air flotation shaft; an air storage cavity is arranged between the air storage sleeve and the air flotation shaft; and the shaft center of the air flotation shaft is provided with an air inlet channel which is connected with a compressed air inlet pipe and communicated with the air storage cavity; and the air storage cavity is provided with an air outlet which is communicated with air outlets of all air flotation sleeves through air pipes. The invention can effectively realize long distance, eliminate the influence of resistance generated by the motion of the sliding block due to bending of air pipes and is high in reliability and convenient to install, use and maintain.
Description
Technical field
The present invention relates to air-floating apparatus, especially a kind of friction-free air floating guide rail of realizing long distance.
Background technique
The effect of linear motion guide rail is to be used for supporting and the guided-moving parts, does linear reciprocating motion by given direction.Decide according to pressing friction character, linear motion guide rail can be divided into kinds such as sliding friction guide rail, rolling friction guide rail, elastic-friction guide rail, fluid friction guide rail.When movement parts when holding the guiding element moving linearly, the guide rail that holds on the guiding element plays a part to support and guiding, i.e. support motion spare and guarantee that movement parts under the effect of external force (weight of load and movement parts itself), carries out straight line motion along given direction.
Air-float guide rail belongs to a kind of of linear rail, is to adopt pressurized gas to produce air film, realizes the frictionless motion of guide rail and slide block.
Air-float guide rail has characteristics such as surface friction drag is little, kinematic accuracy is high, cleanliness without any pollution, has obtained in recent years using widely in surveying instrument, precision optical machinery.Briefly, air-float guide rail is made up of the gentle empty boasting of air-bearing shafts, and 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 be subjected to action of gravity, 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 in length almost can't process apart from occasion therapeutic method to keep the adverse qi flowing downward floating axle.
As application number is 200710035021.7 " installation method of ultralong air-float guide rail and device ", in order to realize ultralong air-float guide rail, needs many air-float guide rails are connected assurance seam precision and a kind of installation method and the device that propose.This scheme realizes very difficulty, is not easy to install, use and safeguard.
On the other hand, be assurance air supporting, thereby must have the pressurized gas of certain pressure to enter generation air film between axle and the axle sleeve.Access way has two kinds, axle air feed or axle sleeve air feed.For axial motion, adopt the axle sleeve air feed usually, promptly pressurized gas is connected to the air supporting cover by tracheae, thus inboard pore discharge gas generation air film is overlapped in air supporting.This class mode is easy to connect, air consumption is little.If adopt the air-bearing shafts air feed, promptly pressurized gas inserts air-bearing shafts by 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 by tracheae, when air-bearing shafts or air supporting cover axially move, tracheae also needs to take exercises, can cause the tracheae bending, 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
For overcome existing air-float guide rail can't realize in long distance, the slide block movement process lower because of crooked drag effects, the reliability that slide block movement is produced of tracheae, installation, use and deficiency difficult in maintenance, the invention provides and a kind ofly can effectively realize long distance, eliminate tracheae crooked and drag effects, reliability height that slide block movement is produced, install and use and length easy to maintenance apart from air-float guide rail.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of length of unaffected by disturbance of air pipes is apart from the air supporting linear rail, comprise the gentle empty boasting of air-bearing shafts, described air supporting cover is sleeved on the described air-bearing shafts, described air supporting cover has two at least, described air supporting cover all is tightly connected with the air storage cover, guiding element is held in the connection of air storage cover, describedly hold guiding element and movement parts servo-actuated, described length comprises also that apart from the air supporting linear rail length in order to support that long distance motion is provided and guiding is apart from linear rail, described length is apart from slide block is installed on the linear rail slidably, described slide block is fixedlyed connected with described air-bearing shafts, be gas storage chamber between described air storage cover and the air-bearing shafts, the axle center of described air-bearing shafts has gas-entered passageway, described gas-entered passageway connects the pressurized gas suction tude, described gas-entered passageway is communicated with described gas storage chamber, and described gas storage chamber is provided with the air outlet, and described air outlet is communicated with the suction port of each air supporting cover by connecting tracheae.
The two ends of described air-bearing shafts are set with fitting seat, and described fitting seat is fixedlyed connected with described slide block.
Described length comprises also that apart from the air supporting linear rail holding guiding element in order to judgement departs from the position transducer whether the air-bearing shafts neutral position reaches setting value, and described position transducer is installed between fitting seat and the air supporting cover.
Described position transducer is Hall transducer and permanent magnet, and described Hall transducer is installed on the described fitting seat, and described permanent magnet is installed in the outside of air supporting cover near fitting seat.Certainly, also can adopt other position transducers or other non-contact type approach switch such as photoelectric sensor, grating encoder.
By O type circle the air storage cover is sealed between described air supporting cover and the air storage cover.
The basic fundamental thinking that the present invention adopts is: utilize conventional linear rail technology, and the precision of linear rail when guaranteeing grand movement, in conjunction with air-float guide rail technology among a small circle, the no friction of realization guide rail movement.And by ACTIVE CONTROL generic linear guide rail slide block movement, hold the guiding element motion thereby follow, when guaranteeing to hold the guiding element motion all the time in the air-float guide rail scope, thereby realize the nothing friction straight line motion of long distance.
Hold between guiding element and guide rail and realize frictionless motion, according to detecting air supporting cover position, the ACTIVE CONTROL ball screw drives the linear rail slide block movement, guarantees that air supporting holds guiding element and be positioned near the air-bearing shafts center.So just can guarantee to hold guiding element and not have friction apart from remaining under the situation of movement long.Described slide block control unit can also move by all kinds of usual manner control such as synchronous band, belt or wire rope slide block except using ball screw.
Beneficial effect of the present invention mainly shows: the air supporting cover does not have the friction servo-actuated according to holding the guiding element position, according to detecting air supporting cover position, by driving sources such as motors, move by 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 holding guiding element is positioned at the air-bearing shafts neutral position.So just can guarantee that movement parts remains the nothing friction under the extra long distance situation of movement.Simultaneously because air-floating apparatus is passed through the air-bearing shafts air feed, and movement parts is fixed on and holds on the guiding element, therefore install that the crooked power that produces of suction tude only acts on the air-bearing shafts when mobile, and can not be delivered to the air storage cover, thus can be to not being connected to the influence that guiding element produces additional force of holding of air storage cover yet.
Description of drawings
Fig. 1 is that the length of unaffected by disturbance of air pipes is apart from the air-float guide rail structural drawing.
Fig. 2 is an air-float guide rail tracheae Placement structural drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
See figures.1.and.2, a kind of length of unaffected by disturbance of air pipes is apart from air-float guide rail, comprise air-bearing shafts 3 gentle empty boastings 2, described air supporting cover 2 is sleeved on the described air-bearing shafts 3, described air supporting cover 2 has two at least, described air supporting cover 2 all is tightly connected with air storage cover 4, air storage cover 4 with hold guiding element 1 and fixedly connected, describedly hold guiding element 1 and movement parts servo-actuated, described length comprises also that apart from the air supporting linear rail length in order to support that long distance motion is provided and guiding is apart from linear rail 5, described length is apart from slide block 6 is installed on the linear rail 5 slidably, described slide block 6 is fixedlyed connected with described air-bearing shafts 3, between described air storage cover 4 and the air-bearing shafts 3 is gas storage chamber, the axle center of described air-bearing shafts 3 has gas-entered passageway 7, and gas-entered passageway 7 connects pressurized gas suction tude 12, and described gas-entered passageway 7 is communicated with described gas storage chamber, described gas storage chamber is provided with the air outlet, and described air outlet is communicated with the suction port of each air supporting cover 2 by connecting tracheae 11.
The two ends of described air-bearing shafts 3 are set with fitting seat 8, and described fitting seat 8 is fixedlyed connected with described slide block 6.
Described length comprises also that apart from the air supporting linear rail holding guiding element in order to judgement departs from the position transducer whether the air-bearing shafts neutral position reaches setting value, and described position transducer is installed between fitting seat and the air supporting cover.
Described position transducer is Hall transducer 9 and permanent magnet 10, and described Hall transducer 9 is installed on the described fitting seat 8, and described permanent magnet 10 is installed in the outside of air supporting cover near fitting seat.Certainly, also can adopt other position transducers or other non-contact type approach switch such as photoelectric sensor, grating encoder.
Air supporting cover and air storage inner room seal the air storage cover by O type circle.
In the present embodiment, air supporting cover 2 is two, when holding guiding element 1 when moving with the direction short distance of air-bearing shafts 3 parallel to an axiss, drags air storage cover 4 and air supporting cover 2 axially servo-actuateds on air-bearing shafts 3 immediately.When the position transducer of a certain direction detect the air supporting cover near after, ACTIVE CONTROL motor 13 overlaps 2 same direction of movement by leading screw 15 control leading screw slide blocks 16 by air supporting and moves, thereby guarantees to hold the neutral position that guiding element 1 is positioned at air-bearing shafts 3 all the time.Occasion for long distance moves drives slide block by 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 air supporting cover and air storage cover and the spatial position and the motion of holding guiding element.So will axially grow the no frictional movement grafting of distance dexterously on general linear rail system, guarantee that by the generic linear guide rail the long utmost point floating guide rail of losing heart that utilizes apart from kinematic accuracy the time realizes not having and rub.
Simultaneously because to the long axle center hole air feed that passes through air-bearing shafts apart from the air supporting linear rail, behind gas storage chamber, give each air supporting cover air feed again by tracheae, be fixed on air storage and put and hold guiding element, therefore install when mobile the crooked additional force that produces of tracheae and can not be delivered to air storage and overlap gentle empty boasting, thereby also can not produce the influence of additional force the movement parts of holding guiding element and being connected.
Claims (5)
1. the length of a unaffected by disturbance of air pipes is apart from the air supporting linear rail, comprise the gentle empty boasting of air-bearing shafts, described air supporting cover is sleeved on the described air-bearing shafts, described air supporting cover has two at least, described air supporting cover all is tightly connected with the air storage cover, guiding element is held in the connection of air storage cover, describedly hold guiding element and movement parts servo-actuated, it is characterized in that: described length comprises also that apart from the air supporting linear rail length in order to support that long distance motion is provided and guiding is apart from linear rail, described length is apart from slide block is installed on the linear rail slidably, described slide block is fixedlyed connected with described air-bearing shafts, be gas storage chamber between described air storage cover and the air-bearing shafts, the axle center of described air-bearing shafts has gas-entered passageway, described gas-entered passageway connects the pressurized gas suction tude, described gas-entered passageway is communicated with described gas storage chamber, and described gas storage chamber is provided with the air outlet, and described air outlet is communicated with the suction port of each air supporting cover by connecting tracheae.
2. the length of unaffected by disturbance of air pipes as claimed in claim 1 is characterized in that apart from the air supporting linear rail: the two ends of described air-bearing shafts are set with fitting seat, and described fitting seat is fixedlyed connected with described slide block.
3. the length of unaffected by disturbance of air pipes as claimed in claim 1 or 2 is apart from the air supporting linear rail, it is characterized in that: described length comprises also that apart from the air supporting linear rail holding guiding element in order to judgement departs from the position transducer whether the air-bearing shafts neutral position reaches setting value, and described position transducer is installed between fitting seat and the air supporting cover.
4. the length of unaffected by disturbance of air pipes as claimed in claim 3 is apart from the air supporting linear rail, it is characterized in that: described position transducer is Hall transducer and permanent magnet, described Hall transducer is installed on the described fitting seat, and described permanent magnet is installed in the outside of air supporting cover near fitting seat.
5. the length of unaffected by disturbance of air pipes as claimed in claim 1 or 2 is characterized in that apart from the air supporting linear rail: by O type circle the air storage cover is sealed between described air supporting cover and the air storage cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101656024A CN101832336B (en) | 2010-05-07 | 2010-05-07 | Long-distance air-flotation linear guide rail unaffected by air pipe disturbance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101656024A CN101832336B (en) | 2010-05-07 | 2010-05-07 | Long-distance air-flotation linear guide rail unaffected by air pipe disturbance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832336A CN101832336A (en) | 2010-09-15 |
| CN101832336B true CN101832336B (en) | 2011-12-28 |
Family
ID=42716506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101656024A Expired - Fee Related CN101832336B (en) | 2010-05-07 | 2010-05-07 | Long-distance air-flotation linear guide rail unaffected by air pipe disturbance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832336B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817912B (en) * | 2012-08-08 | 2015-05-27 | 浙江工业大学 | Nozzle spray force compensation-based inertia force influence-free air floatation follow-up device |
| CN103523719B (en) * | 2013-10-18 | 2015-08-05 | 浙江工业大学 | Long-distance 2 D follows constant force erecting by overhang |
| CN103508385B (en) * | 2013-10-18 | 2015-08-05 | 浙江工业大学 | A kind of long-distance 2 D constant force erecting by overhang |
| CN105971349B (en) * | 2016-06-12 | 2018-01-02 | 北京科技大学 | Intelligent parking system based on air film guide rail |
| CN114992243A (en) * | 2022-06-27 | 2022-09-02 | 河北灵禾科技有限公司 | Air floatation cushion with coating film and special air inlet mode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067974A (en) * | 2007-05-30 | 2007-11-07 | 中国人民解放军国防科学技术大学 | Method and device for mounting ultralong air-float guide rail |
| CN201679862U (en) * | 2010-05-07 | 2010-12-22 | 浙江工业大学 | Long-distance air-floatation linear guide rail without influence of disturbance of air pipes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3532133B2 (en) * | 1999-12-09 | 2004-05-31 | 株式会社ナガセインテグレックス | Work table device |
-
2010
- 2010-05-07 CN CN2010101656024A patent/CN101832336B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067974A (en) * | 2007-05-30 | 2007-11-07 | 中国人民解放军国防科学技术大学 | Method and device for mounting ultralong air-float guide rail |
| CN201679862U (en) * | 2010-05-07 | 2010-12-22 | 浙江工业大学 | Long-distance air-floatation linear guide rail without influence of disturbance of air pipes |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-165273A 2001.06.19 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832336A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813131B (en) | Two-dimensional plane air-floatation zero-gravity cradle | |
| CN101832336B (en) | Long-distance air-flotation linear guide rail unaffected by air pipe disturbance | |
| CN101813129B (en) | Three-dimensional air-floation follow-up device | |
| CN101818759B (en) | Air flotation device following one-dimensional motion trail of lifting point at overlength distance without being influenced by air pipe disturbance | |
| CN201672934U (en) | Two-dimensional planar air floating guide rail zero gravity lifting frame | |
| CN101813130B (en) | Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube | |
| CN201739349U (en) | Three-dimensional air-flotation follow-up device | |
| CN101852660B (en) | Two-dimensional gas floating follow-up device for supplying constant suspension force | |
| CN203794094U (en) | Novel linear moving mechanism | |
| CN201679862U (en) | Long-distance air-floatation linear guide rail without influence of disturbance of air pipes | |
| CN101508081A (en) | Machine tool static-pressure guide-rail leinear motor feeding device | |
| CN201884469U (en) | Air floatation device following motion trail of hoisting point for ultra-long distance | |
| CN201739350U (en) | Non-friction air-floating guide rail used at long distance | |
| CN205186352U (en) | Magnetism adsorbs wall climbing robot | |
| CN102950474A (en) | Liquid static pressure movement platform | |
| CN202075293U (en) | Test stand for testing high speed driving and protection of numerical control machine | |
| CN202901024U (en) | Two-dimensional long-distance frictionless motion air-floating device | |
| CN201731965U (en) | Two-dimensional air-flotation follow-up device for providing constant suspension force | |
| CN201671967U (en) | Air floating device without influence by air pipe and with ultralong distance and one-dimensional motion trail along with lifting point | |
| CN107654404A (en) | A kind of axial flow fan with adjustable moving blades hydraulic control actuator | |
| CN202171526U (en) | Performance detecting device of static-pressure air floating guide rail | |
| CN201679861U (en) | Frictionless air flotation device used for following motion trail of lifting point over ultra-long distance | |
| CN102267092A (en) | Bearing grinder measurement device and application method thereof | |
| CN102817910B (en) | Inertia force influence-free air floatation follow-up device | |
| CN101825141B (en) | Friction-free air floating guide rail for long distance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20180507 |