CN107907143A - A kind of convertible air-floating main shaft in space - Google Patents

A kind of convertible air-floating main shaft in space Download PDF

Info

Publication number
CN107907143A
CN107907143A CN201711040458.XA CN201711040458A CN107907143A CN 107907143 A CN107907143 A CN 107907143A CN 201711040458 A CN201711040458 A CN 201711040458A CN 107907143 A CN107907143 A CN 107907143A
Authority
CN
China
Prior art keywords
main shaft
air
floating main
thrust plate
shaft sleeve
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.)
Pending
Application number
CN201711040458.XA
Other languages
Chinese (zh)
Inventor
姜云翔
赵天承
王春喜
王强
刘凯
汪涛
刘莎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Aerospace Institute for Metrology and Measurement Technology filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201711040458.XA priority Critical patent/CN107907143A/en
Publication of CN107907143A publication Critical patent/CN107907143A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00

Abstract

A kind of convertible air-floating main shaft in space, including air-floating main shaft, air-floating main shaft upper end is connected with work top, and lower end is connected with friction torque compensation system, has thrust plate in air-floating main shaft, thrust plate is ring-shaped structure, and its radius is more than the radius of air-floating main shaft, the upper surface of thrust plate is contacted with Upper shaft sleeve, and lower face is contacted with Lower shaft sleeve, during work, the upper surface of thrust plate, Lower shaft sleeve are separated with Upper shaft sleeve, Lower shaft sleeve respectively；There is adjustable counter balance at lower end in air-floating main shaft, test product is installed on work top.

Description

A kind of convertible air-floating main shaft in space
Technical field
The invention belongs to air-floating main shaft field, and in particular to a kind of convertible air-floating main shaft in space.
Background technology
High-precision navigation equipment is the important feedback element in guidance control system such as gyroscope, to improve navigation essence Degree reduces the influence that drift error is brought, it is necessary to the independent calibration of these navigation equipments progress.To inertia test equipment itself Speech, high precision measurement turntable must solve the phenomenon of low speed jerking motion, while still ensure axis system when carrying out space upset With enough positional precisions and speed precision.
Traditional either simplex condition air-bearing can meet status requirement and rate requirement of the single load in fixed position, and , it is necessary to carry out the multi-shaft interlocked test request that could meet test product for inertia production test class turntable, therefore pass The either simplex condition air-floating main shaft structure type of system can not meet to turn in space in a wide range of interior change, i.e. wide area load in test product Turn the application under state.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, in large-sized air-bearing shafts design basis, carry For the design method and design structure model of the convertible main shaft in space in a kind of wide area load range, this method solve traditional single The problem of operating mode air-floating main shaft structure type can not meet to apply under the rollover states of space, air-bearing is expanded in precision measurement Application range in quasi-instrument field.The pivoting friction that the conducting slip ring installed at the same time on test table is brought into when rotating can be with It is compensated by the specific constructive form of this air-floating main shaft, improves measuring accuracy and test accuracy, promotes China's inertial navigation Further development of the product to the high stabilizability direction of high accuracy.
Technical scheme is as follows：A kind of convertible air-floating main shaft in space, including air-floating main shaft, air-floating main shaft upper end It is connected with work top, lower end is connected with friction torque compensation system, has thrust plate in air-floating main shaft, thrust plate is tied to be circular Structure, and its radius is more than the radius of air-floating main shaft, the upper surface of thrust plate is contacted with Upper shaft sleeve, and lower face is socketed with lower axle Touch, during work, the upper surface of thrust plate, Lower shaft sleeve are separated with Upper shaft sleeve, Lower shaft sleeve respectively；Have in air-floating main shaft at lower end Adjustable counter balance, test product are installed on work top.
Air-floating main shaft upper end is spirally connected with work top.
Apparatus above is installed on bearing block.
The bearing block is installed on center by the center axis of left and right two.
The technology of the present invention effect：Middle thrust bearing and end face adjustable counter balance technology are employed, overcomes traditional either simplex condition The drawbacks of air-bearing can not be applied in the roll over condition of space, realizes large scale air-bearing and is turned in wide area load down space Turn to apply in condition.The structure type of air-floating main shaft and friction torque compensation Cascade System at the same time, greatly improves complete machine knot The compact of structure and miniaturization, expand air-bearing and are applied in accurate measurement.
Brief description of the drawings
Fig. 1 is the convertible air-floating main shaft schematic diagram in space of the present invention
In figure：Center axis 1, Lower shaft sleeve 2, Upper shaft sleeve 3, thrust plate 4, air-floating main shaft 5, test product 6, adjustable counter balance 7, rub Wipe torque compensation system 8, bearing block 9, work top 10
Embodiment
A kind of convertible air-floating main shaft in space, including air-floating main shaft 5,5 upper end of air-floating main shaft are spirally connected with work top 10, under End is connected with friction torque compensation system 8, has thrust plate 4 in air-floating main shaft 5, thrust plate 4 is ring-shaped structure, and its radius is big In the radius of air-floating main shaft 5, the upper surface of thrust plate 4 is contacted with Upper shaft sleeve 3, and lower face is contacted with Lower shaft sleeve 2, during work, The upper surface of thrust plate 4, Lower shaft sleeve are separated with Upper shaft sleeve 3, Lower shaft sleeve 2 respectively；Have in air-floating main shaft 5 at lower end adjustable 7 are weighed, test product 6 is installed on work top 10；Apparatus above is installed on bearing block 9, and bearing block 9 passes through left and right Two center axis 1 are installed on center.

Claims (4)

  1. A kind of 1. convertible air-floating main shaft in space, it is characterised in that：Including air-floating main shaft (5), air-floating main shaft (5) upper end and work Table top (10) connects, and lower end is connected with friction torque compensation system (8), has thrust plate (4), thrust plate (4) in air-floating main shaft (5) For ring-shaped structure, and its radius is more than the radius of air-floating main shaft (5), thrust plate (4 upper surface is contacted with Upper shaft sleeve (3), and Lower face is contacted with Lower shaft sleeve (2), during work, the upper surface of thrust plate (4), Lower shaft sleeve respectively with Upper shaft sleeve (3), Lower shaft sleeve (2) separate；Have adjustable counter balance (7) at the lower end in air-floating main shaft (5), test product (6) be installed on work top (10) it On.
  2. A kind of 2. convertible air-floating main shaft in space according to claim 1, it is characterised in that：Air-floating main shaft (5) upper end with Work top (10) is spirally connected.
  3. A kind of 3. convertible air-floating main shaft in space according to claim 2, it is characterised in that：Apparatus above is installed in axis In bearing (9).
  4. A kind of 4. convertible air-floating main shaft in space according to claim 3, it is characterised in that：The bearing block (9) passes through The center axis (1) of left and right two is installed on center.
CN201711040458.XA 2017-10-31 2017-10-31 A kind of convertible air-floating main shaft in space Pending CN107907143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711040458.XA CN107907143A (en) 2017-10-31 2017-10-31 A kind of convertible air-floating main shaft in space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711040458.XA CN107907143A (en) 2017-10-31 2017-10-31 A kind of convertible air-floating main shaft in space

Publications (1)

Publication Number Publication Date
CN107907143A true CN107907143A (en) 2018-04-13

Family

ID=61842168

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711040458.XA Pending CN107907143A (en) 2017-10-31 2017-10-31 A kind of convertible air-floating main shaft in space

Country Status (1)

Country Link
CN (1) CN107907143A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751848A (en) * 2005-09-29 2006-03-29 哈尔滨工业大学 High-precision mechanical sharpening method for diamond cutter with high-efficiency and low-cost
CN102052550A (en) * 2010-12-16 2011-05-11 西安东风仪表厂 Gas spindle
CN102518667A (en) * 2011-12-19 2012-06-27 西安威而信精密仪器有限公司 Conical air floating shaft system
CN204138869U (en) * 2014-10-27 2015-02-04 吴江市天缘纺织有限公司 A kind of crimping device for air-jet loom
CN105479225A (en) * 2014-09-15 2016-04-13 北京海普瑞森科技发展有限公司 oaxial cutterhead
CN105515261A (en) * 2015-12-14 2016-04-20 湖北工业大学 High-speed motor air bearing support apparatus
CN106289772A (en) * 2015-06-26 2017-01-04 北京航天计量测试技术研究所 The detection device of air bearing rotating accuracy under the conditions of the flip-flop movement of a kind of space

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751848A (en) * 2005-09-29 2006-03-29 哈尔滨工业大学 High-precision mechanical sharpening method for diamond cutter with high-efficiency and low-cost
CN102052550A (en) * 2010-12-16 2011-05-11 西安东风仪表厂 Gas spindle
CN102518667A (en) * 2011-12-19 2012-06-27 西安威而信精密仪器有限公司 Conical air floating shaft system
CN105479225A (en) * 2014-09-15 2016-04-13 北京海普瑞森科技发展有限公司 oaxial cutterhead
CN204138869U (en) * 2014-10-27 2015-02-04 吴江市天缘纺织有限公司 A kind of crimping device for air-jet loom
CN106289772A (en) * 2015-06-26 2017-01-04 北京航天计量测试技术研究所 The detection device of air bearing rotating accuracy under the conditions of the flip-flop movement of a kind of space
CN105515261A (en) * 2015-12-14 2016-04-20 湖北工业大学 High-speed motor air bearing support apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
高岭等: "小型精密空气静压轴承的研制", 《精密制造与自动化》 *

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Application publication date: 20180413