CN102818693B - Half-module pivoted window mechanism applied to sub transonic speed wind tunnel - Google Patents

Half-module pivoted window mechanism applied to sub transonic speed wind tunnel Download PDF

Info

Publication number
CN102818693B
CN102818693B CN201210293555.0A CN201210293555A CN102818693B CN 102818693 B CN102818693 B CN 102818693B CN 201210293555 A CN201210293555 A CN 201210293555A CN 102818693 B CN102818693 B CN 102818693B
Authority
CN
China
Prior art keywords
bearing
main shaft
pot
module
spur gear
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
Application number
CN201210293555.0A
Other languages
Chinese (zh)
Other versions
CN102818693A (en
Inventor
刘晓伟
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 Aerospace Aerodynamics CAAA
Original Assignee
China Academy of Aerospace Aerodynamics CAAA
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 Aerospace Aerodynamics CAAA filed Critical China Academy of Aerospace Aerodynamics CAAA
Priority to CN201210293555.0A priority Critical patent/CN102818693B/en
Publication of CN102818693A publication Critical patent/CN102818693A/en
Application granted granted Critical
Publication of CN102818693B publication Critical patent/CN102818693B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a half-module pivoted window mechanism applied to a sub transonic speed wind tunnel. The half-module pivoted window mechanism comprises a driving transmission module, a feedback and measurement module and a rotating module, wherein the driving transmission module consists of a support seat, a large cylindrical straight gear, an alternating current servo motor, a speed reducer, a gear press cover, a small cylindrical straight gear, a compression cover and a compression screw, the feedback and measurement module consists of a potentiometer support seat, a potentiometer, a press sheet, a shaft coupler, a small shaft and a connecting cover, and the rotating module consists of a right bearing cover, a bearing seat, a pair of precise conical roller bearings, a left bearing cover and a main shaft. Through the adoption of a cylindrical straight gear group, the half-module pivoted window mechanism can realize the movement for positive 360 degrees and negative 360 degrees, in addition, the integral hosting of the mechanism can be realized, a measurement part adopting the potentiometer as the core is adopted for the transmission matching of the cylindrical straight gear group, and the attack angle control precision being +/-3' can be realized.

Description

A kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel
Technical field
The present invention relates to a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel, belong to experimental aerodynamics field.
Background technology
Half-modcl test technology is a kind of important wind-tunnel technique, can solve when test section carries out full model test preferably, the restriction of the section of being put to the test sectional dimension, institute cause test Re number lower, be difficult to realize the problems such as aircraft profile details simulation.Domestic and international most of wind-tunnel, is typically employed in and conventional test section installs half-modcl test system carries out half-modcl test; The wind-tunnel of some larger caliber magnitude, such as CARDC2.4 rice wind-tunnel, FL-2 wind-tunnel etc., then adopt the half-model test section of processing separately, be arranged in this test section by larger half model and carry out aerodynamic test.Zhuan Chuan mechanism is the core institution of half-modcl test system (or half-model test section), is arranged on by half model in Zhuan Chuan mechanism, can carry out the dynamometry of half model, pressure measurement, fluidised form observation, become the test of Re number, hinge moment testing, buffeting test etc.
In fact half module Zhuan Chuan mechanism is exactly half module attack angle mechanism.Usually, the half module of sub-transonic wind tunnel turns window organization establishes on the sidewall of test section left and right.At present, the half module of most sub-transonic wind tunnel turns window mechanism driving chain and is generally: motor (or oil motor)-shaft coupling-speed reduction unit-worm couple-turn window.Due to the worm couple transmission efficiency of large centre distance and rotating accuracy lower, worm couple processing difficulties, the cost that can realize large centre distance, high rotating accuracy and high transmission efficiency are high, are difficult to realize circular motion; Existing mechanism adopts the kind of drive of worm couple and installation environment to cause can not integral hoisting, installs, dismounting inconvenience, and waste time and energy, setup time is long, and test efficiency is low.
Summary of the invention
Object of the present invention: overcome the deficiencies in the prior art, a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel is provided, adopt the worm couple processing difficulties of large centre distance, cost high to solve existing mechanism, be difficult to realize circular-rotation and can not integral hoisting be realized, install, dismantle inconvenience, the problem that test efficiency is low.
Technical solution of the present invention:
Be applied to a half module Zhuan Chuan mechanism for sub-transonic wind tunnel, comprise: bearing, big column spur gear, AC servo motor, speed reduction unit, pot bearing, pot, compressing tablet, shaft coupling, little axle, connection cover, gear gland, small column spur gear, key, right bearing lid, bearing seat, taper roll bearing, left bearing lid, main shaft, friction top and housing screw;
A pair taper roll bearing is loaded between main shaft and bearing seat, make main shaft, bearing seat and taper roll bearing compact siro spinning technology, left bearing lid and right bearing lid are arranged on left side and the right side of taper roll bearing respectively, and left bearing lid and right bearing lid are by taper roll bearing axial compression;
Small column spur gear is connected with main shaft by pair of keys, is arranged on main shaft by gear gland, at axial compression small column spur gear,
AC servo motor and speed reduction unit direct-connected after be arranged on bearing, use housing screw and friction top to be arranged on the axle stretched out of speed reduction unit by big column spur gear, then bearing be connected on bearing seat,
Be arranged on after little axle and connection cover are connected on gear gland, again pot is arranged on pot bearing by compressing tablet, again pot bearing is arranged on bearing, make the dead in line of potentiometric axis and little axle, potentiometric axle and little axle are linked together by shaft coupling, and described pot is for measuring the rotational angle of main shaft.
Described big column spur gear and the engagement of small column spur gear form spur gear wheel group and carry out transmission, make described half module Zhuan Chuan mechanism can realize ± 360 ° of motions.
The axis being parallel of the axis after described AC servo motor is direct-connected with speed reduction unit and main shaft but do not overlap.
Described main shaft is quill shaft.
A pair taper roll bearing loaded between described main shaft and bearing seat adopts face-to-face mode to install.
Described pair of keys is symmetrical in 180 degree up and down around main shaft.
The present invention has following beneficial effect:
(1) the present invention adopts high precision spur gear wheel group (big column spur gear (2) and small column spur gear (12)) transmission, compared to the worm couple of processing difficulties, the large centre distance that cost is high, high rotating accuracy and transmission efficiency, process-cycle is short, cost performance is high, high rotating accuracy, high transmission efficiency and circular motion can be realized, mechanism can realize ± 360 ° of motions, can meet multiple test demand.
(2) half module Zhuan Chuan mechanism of the present invention center of gravity is substantially at the root (near right bearing lid) of bearing seat 15, can integral hoisting, fast and easy is arranged on the windowsill of original test section view window, installs, convenient disassembly, effectively reduce test setup time, improve test efficiency.
(3) the present invention uses pot directly to measure the rotational angle of main shaft, and main shaft is directly connected with load, there is no intermediate transmission link, eliminate intermediate transmission error, therefore feedback and measurement module can the actual rotation angles of direct sensing lead, and this angle value is uploaded, perform respective feedback control action by computing machine according to program, improve the accuracy of attack angle measurement.The transmission of high precision spur gear wheel group coordinates the feedback and the measurement module that adopt high-accuracy current potential to count core, angle of attack control accuracy can be realized can reach ± 3 '.
(4) driving AC servo motor, speed reduction unit are biased by the present invention, with rotating module centerline parallel instead of overlap, straight-tooth wheels are driven to drive main shaft to rotate, main shaft adopts quill shaft design, facilitate the wiring of a large amount of cable such as balance data line, pressure measurement pipeline, sensor signal lines, pipeline, add wiring reliability, multiple test demand can be met.
(5) the present invention devises the standard round taper roller bearing of a pair high precision, large load in main shaft support, and adopt face-to-face mode to install, facilitate installation and removal, cost performance is good, can bear the force and moment acted in mechanism.
Accompanying drawing illustrates:
Fig. 1 is that the half module of the sub-transonic wind tunnel of the present invention turns window mechanism structure schematic diagram;
Fig. 2 is half module Zhuan Chuan mechanism of the present invention scheme of installation;
Embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
The invention provides a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel, as shown in Figure 1, comprising: bearing 1, big column spur gear 2, AC servo motor 3, speed reduction unit 4, pot bearing 5, pot 6, compressing tablet 7, shaft coupling 8, little axle 9, connection cover 10, gear gland 11, small column spur gear 12, key 13, right bearing lid 14, bearing seat 15, taper roll bearing 16, left bearing lid 17, main shaft 18, friction top 19 and housing screw 20;
The present invention can be divided into three modules: drive transmission module, feedback and measurement module and rotating module.Wherein, bearing 1, big column spur gear 2, AC servo motor 3, speed reduction unit 4, gear gland 11, small column spur gear 12, friction top 19 and housing screw 20 composition drives transmission module; Pot bearing 5, high-accuracy pot 6, compressing tablet 7, shaft coupling 8, little axle 9 and connection cover 10 composition feedback and measurement module; Right bearing lid 14, bearing seat 15, a pair taper roll bearing 16, left bearing lid 17 and main shaft 18 form rotating module.
A pair taper roll bearing 16 is loaded between main shaft 18 and bearing seat 15, make main shaft 18, bearing seat 15 and taper roll bearing 16 compact siro spinning technology, left bearing lid 17 and right bearing lid 14 are arranged on left side and the right side of taper roll bearing 16 respectively, and left bearing lid 17 and right bearing lid 14 are by taper roll bearing 16 axial compression;
Small column spur gear 12 is connected with main shaft 18 by pair of keys 13, installs on the spindle 18 by gear gland 11, and at axial compression small column spur gear 12, pair of keys 13 is symmetrical in 180 degree around main shaft about 18.
Be arranged on bearing 1 after AC servo motor 3 is direct-connected with speed reduction unit 4, housing screw 20 and friction top 19 is used to be arranged on the axle stretched out of speed reduction unit by big column spur gear 2, again bearing 1 is connected on bearing seat 15, described big column spur gear 2 and small column spur gear 12 engage formation spur gear wheel group and carry out transmission, make described half module Zhuan Chuan mechanism can realize ± 360 ° of motions.The axis being parallel of the axis after described AC servo motor 3 is direct-connected with speed reduction unit 4 and main shaft 18 but do not overlap.Described main shaft 18 is quill shaft.A pair taper roll bearing 16 loaded between described main shaft 18 and bearing seat 15 adopts face-to-face mode to install.
Be arranged on gear gland 11 after little axle 9 is connected with connection cover 10, again pot 6 is arranged on pot bearing 5 by compressing tablet 7, again pot bearing 5 is arranged on bearing 1, make the dead in line of the axis of pot 6 and little axle 9, axle and the little axle 9 of pot 6 are linked together by shaft coupling 8, and described pot 6 is for measuring the rotational angle of main shaft 27.
The present invention adopts AC servo motor 3, precision speed reduction device 4, cylindrical straight gear wheels (big column spur gear 2 and small column spur gear 12) etc. to drive the feedback of the composition such as transmission module and pot bearing 5, pot 6, little axle 9 external with measurement module, and it is interior and be connected with original test section view window windowsill that residual rotation module section need project forwardly to test section.
The center of gravity of half module Zhuan Chuan mechanism, substantially at the root of bearing seat 15, namely near right bearing lid 14 place, can use lifting rope or directly lift by crane after installing suspension hook.Refer to Fig. 2, sub-transonic wind tunnel test section has inside and outside two-layer hole wall 23,24, after lifting, by half module Zhuan Chuan mechanism by screw 21, be arranged on sub-transonic wind tunnel test section outside window sill 22, by regulating, the front end face of main shaft 18 being flushed with the wall of hole wall 24 in sub-transonic wind tunnel test section, completes installation.
During dismounting, the screw 33 be arranged in sub-transonic wind tunnel test section is disassembled, then use crane that mechanism is winched to ground.
The present invention uses pot 6 directly to measure the rotational angle of main shaft 18, and main shaft 18 is directly connected with load, there is no intermediate transmission link, eliminate intermediate transmission error, therefore feedback and measurement module can the actual rotation angles of direct sensing lead, and this angle value is uploaded, perform respective feedback control action by computing machine according to program, improve the accuracy of attack angle measurement.
The present invention adopts cylindrical straight gear wheels (big column spur gear 2 and small column spur gear 12) to carry out transmission, by mending teeth of gear and Precision Machining, high rotating accuracy, high transmission efficiency and circular motion can be realized, make half module Zhuan Chuan mechanism can realize ± 360 ° of motions, multiple test demand can be met, the high-accuracy pot 6 of cooperation employing is feedback and the measurement module of core, angle of attack control accuracy can be realized can reach ± 3 '.Compared to the worm couple of the processing difficulties of tradition employing at present, the large centre distance that cost is high, high rotating accuracy, the process-cycle is short, and cost performance is high.
In addition, AC servo motor 3 after direct-connected and precision speed reduction device 4 are biased, parallel with the center line (axis) of rotating module (main shaft 18) instead of overlap, straight-tooth wheels are driven to drive main shaft 18 to rotate, main shaft adopts quill shaft design, facilitate the wiring of a large amount of cable such as balance data line, pressure measurement pipeline, sensor signal lines, pipeline, add wiring reliability, multiple test demand can be met.
The aerodynamic loading that bears of half module Zhuan Chuan mechanism is complicated and value is larger, especially larger rolling moment is born, in order to the aerodynamic loading acted in mechanism is delivered on sidewall paneling, the standard round taper roller bearing of a pair high precision, large load is devised on main shaft 18 supports, face-to-face mode is adopted to install, facilitate installation and removal, cost performance is good, can bear the force and moment acted in mechanism.
Through calibration model test and actual items experimental test, this inventive embodiments can meet the multiple test demands such as half model dynamometry, pressure measurement, ± 360 ° of motions can be realized, angle of attack control accuracy can reach ± and 3 ', install, about the take-down time is half an hour, greatly reduce compared with three h run setup times in the past, improve test efficiency.
The content be not described in detail in instructions of the present invention belongs to the known technology of this area.

Claims (6)

1. one kind is applied to the half module Zhuan Chuan mechanism of sub-transonic wind tunnel, it is characterized in that comprising: bearing (1), big column spur gear (2), AC servo motor (3), speed reduction unit (4), pot bearing (5), pot (6), compressing tablet (7), shaft coupling (8), little axle (9), connection cover (10), gear gland (11), small column spur gear (12), key (13), right bearing lid (14), bearing seat (15), taper roll bearing (16), left bearing lid (17), main shaft (18), friction top (19) and housing screw (20),
A pair taper roll bearing (16) is loaded between main shaft (18) and bearing seat (15), make main shaft (18), bearing seat (15) and taper roll bearing (16) compact siro spinning technology, left bearing lid (17) and right bearing lid (14) are arranged on left side and the right side of taper roll bearing (16) respectively, and left bearing lid (17) and right bearing lid (14) are by taper roll bearing (16) axial compression;
Small column spur gear (12) is connected with main shaft (18) by pair of keys (13), is arranged on by gear gland (11) on main shaft (18), at axial compression small column spur gear (12),
Be arranged on bearing (1) after AC servo motor (3) is direct-connected with speed reduction unit (4), housing screw (20) and friction top (19) is used to be arranged on the axle stretched out of speed reduction unit by big column spur gear (2), again bearing (1) is connected on bearing seat (15)
Be arranged on gear gland (11) after little axle (9) and connection cover (10) are connected, again pot (6) is arranged on pot bearing (5) by compressing tablet (7), again pot bearing (5) is arranged on bearing (1), make the axis of pot (6) and the dead in line of little axle (9), axle and the little axle (9) of pot (6) are linked together by shaft coupling (8), and described pot (6) is for measuring the rotational angle of main shaft (18).
2. a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel according to claim 1, it is characterized in that: described big column spur gear (2) and small column spur gear (12) engagement form spur gear wheel group and carry out transmission, make described half module Zhuan Chuan mechanism can realize ± 360 ° of motions.
3. a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel according to claim 1, is characterized in that: the axis being parallel of the axis after described AC servo motor (3) is direct-connected with speed reduction unit (4) and main shaft (18) but do not overlap.
4. a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel according to claim 1, is characterized in that: described main shaft (18) is quill shaft.
5. a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel according to claim 1, is characterized in that: a pair taper roll bearing (16) loaded between described main shaft (18) and bearing seat (15) adopts face-to-face mode to install.
6. a kind of half module Zhuan Chuan mechanism being applied to sub-transonic wind tunnel according to claim 1, is characterized in that: described pair of keys (13) is symmetrical in 180 degree up and down around main shaft (18).
CN201210293555.0A 2012-08-17 2012-08-17 Half-module pivoted window mechanism applied to sub transonic speed wind tunnel Expired - Fee Related CN102818693B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210293555.0A CN102818693B (en) 2012-08-17 2012-08-17 Half-module pivoted window mechanism applied to sub transonic speed wind tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210293555.0A CN102818693B (en) 2012-08-17 2012-08-17 Half-module pivoted window mechanism applied to sub transonic speed wind tunnel

Publications (2)

Publication Number Publication Date
CN102818693A CN102818693A (en) 2012-12-12
CN102818693B true CN102818693B (en) 2014-12-24

Family

ID=47302950

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210293555.0A Expired - Fee Related CN102818693B (en) 2012-08-17 2012-08-17 Half-module pivoted window mechanism applied to sub transonic speed wind tunnel

Country Status (1)

Country Link
CN (1) CN102818693B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104359643B (en) * 2014-10-29 2018-06-22 中国航空工业集团公司哈尔滨空气动力研究所 Pitching based on electromechanical hydraulic pressure coupling driving-rolling two-freedom experiment porch
CN108051177B (en) * 2017-12-28 2019-06-21 西北工业大学 A kind of cascade wind tunnel based on link mechanism turns window supporting device
CN112683484B (en) * 2021-01-21 2022-09-23 中国空气动力研究与发展中心设备设计及测试技术研究所 Half-mode supporting mechanism applied to large continuous transonic wind tunnel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1543969A1 (en) * 1987-07-15 1992-04-23 Предприятие П/Я Г-4903 Device for adjusting angle of attack of model in wind tunnel
CN1190073A (en) * 1997-02-03 1998-08-12 中国航空工业总公司第六二六研究所 Quadruple cross-position support for semi-model wind channel test
CN101865759A (en) * 2010-06-02 2010-10-20 中国航天空气动力技术研究院 Device for hypersonic rolling dynamic test
CN201903440U (en) * 2010-12-16 2011-07-20 江苏技术师范学院 High-speed wind tunnel angle attacking control system
CN102175420A (en) * 2011-01-25 2011-09-07 北京航空航天大学 Two-degrees-of-freedom supporting system for wind tunnel test of airplane
CN102305699A (en) * 2011-05-19 2012-01-04 北京航空航天大学 Wind tunnel experiment system for free flight model

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1543969A1 (en) * 1987-07-15 1992-04-23 Предприятие П/Я Г-4903 Device for adjusting angle of attack of model in wind tunnel
CN1190073A (en) * 1997-02-03 1998-08-12 中国航空工业总公司第六二六研究所 Quadruple cross-position support for semi-model wind channel test
CN101865759A (en) * 2010-06-02 2010-10-20 中国航天空气动力技术研究院 Device for hypersonic rolling dynamic test
CN201903440U (en) * 2010-12-16 2011-07-20 江苏技术师范学院 High-speed wind tunnel angle attacking control system
CN102175420A (en) * 2011-01-25 2011-09-07 北京航空航天大学 Two-degrees-of-freedom supporting system for wind tunnel test of airplane
CN102305699A (en) * 2011-05-19 2012-01-04 北京航空航天大学 Wind tunnel experiment system for free flight model

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
2.4m跨声速风洞大迎角试验技术研究;吴军强等;《流体力学实验与测量》;20041231;第18卷(第4期);第43-48页 *

Also Published As

Publication number Publication date
CN102818693A (en) 2012-12-12

Similar Documents

Publication Publication Date Title
CN106946097B (en) Cable pull self-regulation capstan winch and its control method
CN101871845B (en) Undetached measurement device and method for transmission efficiency of automotive transmission system
CN102818693B (en) Half-module pivoted window mechanism applied to sub transonic speed wind tunnel
CN206593852U (en) Circulating power flow pattern RV decelerator dynamic-performance testing tables
CN206394900U (en) Water acquisition unmanned plane
CN103487264A (en) Testing device for single-wheel traction performance
CN204228409U (en) RV speed reduction unit drive characteristic test macro
CN102840962B (en) Half-module window rotating mechanism applied to supersonic wind tunnel
CN202710670U (en) Single-shaft heavy antenna testing rotary table
CN206328073U (en) A kind of flat arm type tower crane amplitude measurement device with amplitude calibration
CN101509814A (en) Miniature bearing dynamic friction moment measurement instrument
CN201285334Y (en) Measurement instrument for detecting dynamic friction torque of bearing
CN204269362U (en) The pneumatically loading ball screw assembly, dynamic efficiency testing table of interchangeable leading screw
CN2689205Y (en) Pure torsion measuring apparatus
CN203225626U (en) Special motor speed reducer for automobile brake test bed
CN205934869U (en) Hoisting hoister
CN206677950U (en) A kind of truss manipulator
CN208043433U (en) A kind of pitch motor Opposite side loading experimental rig
CN107024348A (en) A kind of oil mud motor quantitative measurement simulates board
CN203365034U (en) Machine for assembly and friction torque measurement of turntable-bearing assembly with gear
CN203811375U (en) Detection testing machine for elevator brake performance
CN205930205U (en) Upright motor rear axle
CN111855051A (en) Large-scale wind driven generator shafting rotation torque measuring device and measuring method
CN204740084U (en) Transmission that integrated moment of torsion detected
CN104569471A (en) Winching rotating speed detection device and method

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

Granted publication date: 20141224

Termination date: 20150817

EXPY Termination of patent right or utility model