CN107014584A - A set of high-accuracy spindle system for jet stream balance calibration - Google Patents
A set of high-accuracy spindle system for jet stream balance calibration Download PDFInfo
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- CN107014584A CN107014584A CN201710315186.3A CN201710315186A CN107014584A CN 107014584 A CN107014584 A CN 107014584A CN 201710315186 A CN201710315186 A CN 201710315186A CN 107014584 A CN107014584 A CN 107014584A
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- main shaft
- flanged plate
- electric cylinder
- axis
- connecting rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention relates to a set of high-accuracy spindle system for jet stream balance calibration, including：Flanged plate is installed with electric cylinder and spindle drum, spindle drum end face, the main shaft being installed in spindle drum stretches out flanged plate, and main shaft external part outer wall is fixedly mounted in interface adapter；Electric cylinder is arranged on flanged plate by electric cylinder hinged-support, electric cylinder output end is fixedly connected by connecting rod with interface adapter end face, connecting rod axis is vertical with main-shaft axis, main shaft is hollow cavity, main shaft one end is connected by jet flow balance with bellows system, main shaft external part is connected with steam line, and flanged plate is provided with retaining mechanism, and bearing is connected by retaining mechanism with flanged plate.Present invention improves over the deficiency of conventional balance calibration system axis system transmission, it is configured with the connecting rod transmission type axis system for being available for locking, it is possible to achieve under the conditions of high-pressure air feed, the accurate reset of main shaft during jet flow balance is calibrated, make system authority gap small, motion of main shaft precision is high.
Description
Technical field：
The invention belongs to aviation aerodynamic force wind-tunnel technique field, it is related to the master of wind tunnel balance calibration system reset device
Axle system, and in particular to a set of high-accuracy spindle system for jet stream balance calibration.
Background technology：
Wind tunnel balance calibration system is available to the indispensable equipment of wind tunnel test high accurancy and precision balance, wind-tunnel balance
Calibration system is as high precision apparatus, and integral link is more, and technical requirements are high, with the reach of science, balance calibration dress system court
Higher automaticity, more accurate, more efficient direction to develop.
Balance calibration system can be divided into ground shafting balance calibration device and body axle balance according to loading reference frame difference
The major class of calibrating installation two, the calibration method used referred to as axis calibration and body axis calibration.Due to body shafting balance calibration device
Using the body-axis coordinate system of balance as reference frame, the loading force system that load added by load(ing) point is constituted during balance calibration is all the time
Overlapped with balance body shafting, thus more real simulation wind tunnel test state, added load more accurate, calibration result is more
Truly.Current wind-tunnel unit main both at home and abroad generally uses body Shafting correction system.
The calibration of jet flow balance involved by this paper is also to use body axis calibration, and jet flow balance is measured installed in vector spray
In system, for measuring jet flow aerodynamic force.Vector spray measuring system outflows sealedly by high-pressure jet supply air line, for interior
Bellows piece, six component vector jet pipe force balances, stagnation pressure, static pressure, stagnation temperature measuring probe etc. are constituted, and are one more complicated
Measuring multiple parameters body.Needed due to sealing and supplying, full elastic symmetry bellows is mounted between balance and supply air line.The ripple
The balance that exists for of line pipe brings additional force and torque, and the pressure and flow that additional force and torque are born with bellows
And change.The presence of this additional force and torque makes the presence of very big difference between the measured value of balance and the actual value of experiment.
Therefore, under the conditions of to obtain the actual value tested, it is necessary to solve high-pressure air feed, main shaft accurately resets during jet flow balance is calibrated
The problem of.
The content of the invention：
The present invention can be to the high-precision of jet stream balance calibration under the conditions of high-pressure air feed to overcome drawbacks described above to be enclosed on there is provided one
Degree main shaft realizes the system accurately resetted.
The technical solution adopted by the present invention is：A set of high-accuracy spindle system for jet stream balance calibration, including：Electricity
Flanged plate is installed with dynamic cylinder and spindle drum, the end face of the spindle drum, the main shaft being installed in spindle drum stretches out method
It is fixedly mounted on blue plate, the external part outer wall of main shaft in interface adapter；The electric cylinder is installed by electric cylinder hinged-support
On flanged plate, the output end of electric cylinder is fixedly connected by connecting rod with interface adapter end face, the axis of the connecting rod and master
The axis of axle is vertical, and the main shaft is hollow cavity, main shaft one end is connected by jet flow balance with bellows system, and main shaft is stretched
Go out end to connect with steam line, retaining mechanism is additionally provided with flanged plate, the retaining mechanism includes being fixed on interface adapter
Following bearing, the arc groove and clamping screw nut assembly opened up on flanged plate along the rolling direction of main shaft is opened in, it is described
Clamping screw nut assembly includes clamping screw and two locking nuts, and the clamping screw passes through bearing and arc groove by bearing
It is connected with flanged plate by screwing locking nut.
Preferably, the arc groove is to be arranged concentrically with main shaft, and the central angle of arc groove is 30 °, clamping screw nut
Lock component optional position in this angular range.
Preferably, described two locking nuts are located at the left and right sides of flanged plate respectively.
The beneficial effects of the invention are as follows：The deficiency of conventional balance calibration system axis system transmission is improved, being configured with can
For the connecting rod transmission type axis system of locking, it is possible to achieve under the conditions of high-pressure air feed, main shaft during jet flow balance is calibrated
It is accurate to reset, make system authority gap small, motion of main shaft precision is high.
Brief description of the drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is the annexation figure of flanged plate and electric cylinder hinged-support；
Wherein：1 electric cylinder, 2 bearings, 3 clamping screws, 4 bearings, 5 main shafts, 6 spindle drums, 7 flanged plates, 8 electric cylinders are hinged
Seat, 9 steam lines, 10 jet flow balances, 11 bellows systems, 12 locking nuts, 13 arc grooves, 14 interface adapters.
Embodiment：
Referring to Figures 1 and 2, a set of high-accuracy spindle system for jet stream balance calibration of the invention, including：Electric cylinder
1 and spindle drum 6, flanged plate 7 is installed with the end face of the spindle drum 6, is rotatablely installed by bearing 4 in spindle drum 6
On the one end of main shaft 5 stretched out from flanged plate 7, the external part outer wall of main shaft 5 is fixedly mounted in interface adapter 14；It is described electronic
Cylinder 1 is driven by high-precision planet screw mandrel electric cylinder, and this kind of back clearance of electric cylinder 1 is small, rigidity is high, and electric cylinder 1 passes through electric cylinder
On the opposite side of the mounting flange plate 7 of hinged-support 8, the output end of electric cylinder 1 is fixed by connecting rod and the end face of interface adapter 14 to be connected
Connect, the axis of the connecting rod is vertical with the axis of main shaft 5, the main shaft 5 is hollow cavity, and described one end of main shaft 5 passes through jet flow
Balance 10 is connected with bellows system 11, and ripple pipeline is provided with the bellows system 11.The external part and supply of main shaft 5
Pipeline 9 is connected, and retaining mechanism is additionally provided with flanged plate 7, and the retaining mechanism includes being fixed on below interface adapter 14
Bearing 2, it is opened in the arc groove 13 and clamping screw nut assembly opened up on flanged plate 7 along the rolling direction of main shaft 5, the arc
Wire casing 13 is with main shaft 5 to be arranged concentrically, and the central angle of deep-slotted chip breaker 13 is the locking screw in 30 °, the clamping screw nut assembly
Bolt 3 is fixed on bearing 2, and the locking nut 12 is two, respectively positioned at the both sides of flanged plate 7, and clamping screw 3 passes through camber line
Groove 13 realizes bearing 2 and flanged plate 7 by screwing two locking nuts 12 locking of optional position in this angular range, i.e.,
Main shaft 5 is fixedly connected with spindle drum 6, makes to realize the locking of axis system.
The course of work：
In order to realize that the linear motion by electric cylinder 1 is changed into the gyration of main shaft 5, jointed gear unit is devised,
The jointed gear unit is exactly that electric cylinder hinged-support 8 is fixedly connected by flanged plate 7 with spindle drum 6, by being hinged the just company of being formed
Bar transmission mechanism., will because the cylinder body of electric cylinder 1 is connected with electric cylinder hinged-support 8 when the connecting rod of electric cylinder 1 is elongated or shortened
Swing is produced, while driving interface adapter 14 to rotate, and then causes main shaft 5 to produce corner relative to spindle drum 6.In jet flow day
During flat calibration, recovered because the main shaft 5 that ventilation influence or loaded load are produced is rotated by above-mentioned action to " 0 " position of main shaft 5
State, it is ensured that calibration of the jet flow balance 10 under body shafting " 0 " position.
In order to meet angular flexibility amendment requirement, main shaft 5 is fixed together with spindle drum 6, the rolling without relative motion is realized
Turn the locking device of the free degree, locking device is provided with 30 ° of arc groove 13 on flanged plate 7, can be real in this angular range
The locking of existing optional position.
Claims (3)
1. a set of high-accuracy spindle system for jet stream balance calibration, including：Electric cylinder (1) and spindle drum (6), its feature exist
In：Flanged plate (7) is installed with the end face of the spindle drum (6), the main shaft (5) being installed in spindle drum (6) stretches out
Flanged plate (7), the external part outer wall of main shaft (5) is fixedly mounted in interface adapter (14)；The electric cylinder (1) is by electronic
Cylinder hinged-support (8) is arranged on flanged plate (7), and the output end of electric cylinder (1) is solid by connecting rod and interface adapter (14) end face
Fixed connection, the axis of the connecting rod is vertical with the axis of main shaft (5), and the main shaft (5) is hollow cavity, and main shaft (5) one end leads to
Cross jet flow balance (10) to connect with bellows system (11), the external part of main shaft (5) is connected with steam line (9), in flanged plate
(7) it is additionally provided with retaining mechanism on, the retaining mechanism includes being fixed on the following bearing (2) of interface adapter (14), is opened in
The arc groove (13) and clamping screw nut assembly opened up on flanged plate (7) along the rolling direction of main shaft, the clamping screw spiral shell
Female component includes clamping screw (3) and two locking nuts (12), and the clamping screw (3) passes through bearing (2) and arc groove
(13) bearing (2) and flanged plate (7) are connected by screwing locking nut (12).
2. the high-accuracy spindle system according to claim 1 for jet stream balance calibration, it is characterised in that：The camber line
Groove (13) is to be arranged concentrically with main shaft (5), and the central angle of arc groove (13) is 30 °, and clamping screw nut assembly is in this angle
In the range of optional position locking.
3. the high-accuracy spindle system according to claim 1 or 2 for jet stream balance calibration, it is characterised in that：It is described
Two locking nuts (12) are located at the left and right sides of flanged plate (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315186.3A CN107014584A (en) | 2017-05-05 | 2017-05-05 | A set of high-accuracy spindle system for jet stream balance calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315186.3A CN107014584A (en) | 2017-05-05 | 2017-05-05 | A set of high-accuracy spindle system for jet stream balance calibration |
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| Publication Number | Publication Date |
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| CN107014584A true CN107014584A (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710315186.3A Pending CN107014584A (en) | 2017-05-05 | 2017-05-05 | A set of high-accuracy spindle system for jet stream balance calibration |
Country Status (1)
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| CN (1) | CN107014584A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387350A (en) * | 2018-12-06 | 2019-02-26 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of interior formula coaxial corrugated pipe balance system |
| CN109406091A (en) * | 2018-12-06 | 2019-03-01 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of pair of stamp air bridges balance system |
| CN110779679A (en) * | 2019-11-21 | 2020-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for correcting influence of pressure compensation chamber of calibration box on high-precision force measuring balance |
| CN110806302B (en) * | 2019-11-21 | 2021-01-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure compensation device capable of decoupling six-component acting force |
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| CN86208176U (en) * | 1986-10-20 | 1987-10-07 | 沈阳第一机床厂 | High rigidity main spindle system for machine tool |
| CN2633478Y (en) * | 2003-08-11 | 2004-08-18 | 浙江凯达机床集团有限公司 | High precision micro vibration machine tool main shaft system |
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| CN202556162U (en) * | 2012-05-29 | 2012-11-28 | 广东工业大学 | Spindle system of superfine ultrasonic and superfine rotary ultrasonic machining tool |
| CN103364169A (en) * | 2012-04-09 | 2013-10-23 | 中国航空工业集团公司沈阳空气动力研究所 | High-precision full-automatic zero returning compensation type body axis system balance calibration system |
| CN203811347U (en) * | 2014-01-15 | 2014-09-03 | 中国航空工业集团公司沈阳空气动力研究所 | High-precision quick reset system for calibration of balance body shaft |
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- 2017-05-05 CN CN201710315186.3A patent/CN107014584A/en active Pending
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| CN86208176U (en) * | 1986-10-20 | 1987-10-07 | 沈阳第一机床厂 | High rigidity main spindle system for machine tool |
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| CN101532541A (en) * | 2008-03-13 | 2009-09-16 | 谢夫勒两合公司 | Chief axis system |
| CN103364169A (en) * | 2012-04-09 | 2013-10-23 | 中国航空工业集团公司沈阳空气动力研究所 | High-precision full-automatic zero returning compensation type body axis system balance calibration system |
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| CN203811347U (en) * | 2014-01-15 | 2014-09-03 | 中国航空工业集团公司沈阳空气动力研究所 | High-precision quick reset system for calibration of balance body shaft |
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| 冷魂YEAR: "《百度百科》", 1 May 2017 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387350A (en) * | 2018-12-06 | 2019-02-26 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of interior formula coaxial corrugated pipe balance system |
| CN109406091A (en) * | 2018-12-06 | 2019-03-01 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of pair of stamp air bridges balance system |
| CN109387350B (en) * | 2018-12-06 | 2023-08-25 | 中国航空工业集团公司沈阳空气动力研究所 | Internal coaxial corrugated pipe balance system |
| CN109406091B (en) * | 2018-12-06 | 2023-09-08 | 中国航空工业集团公司沈阳空气动力研究所 | Opposite-impact type air bridge balance system |
| CN110779679A (en) * | 2019-11-21 | 2020-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for correcting influence of pressure compensation chamber of calibration box on high-precision force measuring balance |
| CN110806302B (en) * | 2019-11-21 | 2021-01-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure compensation device capable of decoupling six-component acting force |
| CN110779679B (en) * | 2019-11-21 | 2021-01-26 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for correcting influence of pressure compensation chamber of calibration box on high-precision force measuring balance |
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Application publication date: 20170804 |