CN206974655U - A kind of novel closed formula flow throttles into cone control system - Google Patents
A kind of novel closed formula flow throttles into cone control system Download PDFInfo
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- CN206974655U CN206974655U CN201720634045.3U CN201720634045U CN206974655U CN 206974655 U CN206974655 U CN 206974655U CN 201720634045 U CN201720634045 U CN 201720634045U CN 206974655 U CN206974655 U CN 206974655U
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Abstract
A kind of novel closed formula flow throttles into cone control system, is related to high-speed wind tunnel air intake test field；Downstream group section, rear portion sleeve, middle part sleeve, frontal sleeve and upstream group section join end to end the shell of forming control system；Servomotor is fixedly mounted on the axial location of middle part sleeve；Decelerator is fixedly mounted on the output end of servomotor；Motor cabinet is fixedly mounted on the axial location of frontal sleeve；Zero position switch is fixedly mounted on the axial top of motor cabinet；Guide rail is fixedly mounted on frontal sleeve small end inwall；Turn-screw is axially fixed the axial location installed in frontal sleeve；Support is fixedly mounted on the junction of frontal sleeve and upstream group section；The other end of turn-screw is fixedly mounted at the center of support；Throttling cone is fixedly mounted on the outer wall of turn-screw.The utility model can be directly mounted at after air intake port, can simply and effectively adjust air intake port back-pressure, can be applied to larger contracting than air intake duct and double hair air intake test models.
Description
Technical field
A kind of high-speed wind tunnel air intake test field is the utility model is related to, particularly a kind of novel closed formula flow throttling
Enter to bore control system.
Background technology
Air intake duct is a critical component of airbreather, and it is a well-designed gas channel of process, is made
Be introduce air, realize to air-flow deceleration supercharging after, there is provided to engine chamber, the quality of its performance directly affects
To engine or even the overall performance of aircraft.
Air intake duct wind tunnel test is to assess inlet characteristic, obtain the Main Means of inlet characteristics parameter, wherein flow
Coefficient and total pressure recovery coefficient are most important two characterisitic parameters of air intake duct, are become to obtain both with air intake port back-pressure
The rule of change, conventional method are to carry out back-pressure regulation using throttling wimble device, and throttling wimble device is generally divided into opening and remained silent
Two kinds of implementations, open type throttling wimble device are directly mounted at whole measurement pipeline rear end, and air-flow is directly discharged to outside pipeline,
Because such a mode flow measurement section is all located at throttling cone upstream nearby, cause measurement error larger without over commutation, and
Flow suction system can not be added, the test requirements document that aviation air intake duct equally accurate is high, speed is low can not be met.Closed type throttling cone
Device can install high-precision flow measurement and flow suction system additional behind, but because its control system is mostly stepper motor+electricity
The mode of position meter, causes, and modern advanced fighter and new TBCC assembly power aircraft larger into wimble device overall dimensions
Typically there is twin-engined and air intake duct, and the double hair air intake duct mold exit spacing than after that contract are smaller, it is difficult to install two additional simultaneously
Closed type throttling wimble device is covered, has to by flexible pipe extend to it outside wind tunnel wall or hole and installs, and this installation method is anti-
Away from air intake port farther out, the measurement to air intake duct critical condition surge frequency and intensity has a great influence pressure adjusting position.
With the fast development of domestic air mail engine, the requirement more and more higher to aviation air intake test, conventional throttle
Bevel-type flow throttling arrangement is difficult to meet test requirements document.
Utility model content
The purpose of this utility model is the above-mentioned deficiency for overcoming prior art, there is provided a kind of novel closed formula flow throttling
Enter and bore control system, radial dimension is smaller, can be directly mounted at after air intake port, can simply and effectively adjust air intake duct
Back-pressure is exported, can be applied to larger contracting than air intake duct and double hair air intake test models.
Above-mentioned purpose of the present utility model is achieved by following technical solution：
A kind of novel closed formula flow throttles into cone control system, including downstream group section, rear portion sleeve, middle part sleeve,
Frontal sleeve, upstream group section, servomotor, decelerator, motor cabinet, zero position switch, guide rail, throttling cone, turn-screw and branch
Frame；Wherein, downstream group section, rear portion sleeve, middle part sleeve, frontal sleeve and upstream group section are hollow cylinder structure；Under
Trip group section, rear portion sleeve, middle part sleeve, frontal sleeve and upstream group section join end to end vertically successively, composition control system
The shell of system；Servomotor is axially fixed the axial location installed in middle part sleeve；Decelerator is fixedly mounted on servomotor
Output end；Motor cabinet is fixedly mounted on the axial location of frontal sleeve, and reducer output shaft is stretched into inside motor cabinet；Zero-bit
Switch is fixedly mounted on the axial top of motor cabinet；Guide rail is axially fixed on frontal sleeve small end inwall；Driving wire
Thick stick is axially fixed the axial location installed in frontal sleeve, and one end of turn-screw is stretched into inside motor cabinet and and decelerator
Output shaft be fixedly connected；Support is fixedly mounted on the junction of frontal sleeve and upstream group section；The other end of turn-screw
It is fixedly mounted at the center of support；Throttling cone is fixedly mounted on the outer wall of turn-screw.
Throttled in a kind of above-mentioned novel closed formula flow into cone control system, described throttling cone is hollow taper knot
Structure；Pyramidal structure outer wall is divided into conehead section, linearity range and endpiece from tip end to tail end；Wherein endpiece is fixed with guide rail and connected
Connect, realize that throttling cone moves axially along guide rail.
Throttled in a kind of above-mentioned novel closed formula flow includes path into cone control system, the outer wall of the frontal sleeve
Straightway, oblique line section and big footpath straightway；The oblique line section of the frontal sleeve is parallel with the linearity range of throttling cone.
Throttled in a kind of above-mentioned novel closed formula flow into cone control system, a diameter of support of described turn-screw
DiameterThe length of turn-screw bores 1.8-2.2 times of axial length for throttling.
Throttle in a kind of above-mentioned novel closed formula flow and pressed into cone control system, described zero position switch for normally closed type
Switch；When zero position switch is closure state, servomotor Double-directional rotary；When zero position switch is open mode, servomotor
It can only be rotated along making turn-screw stretch out direction.
Throttled in a kind of above-mentioned novel closed formula flow into cone control system, described downstream group section, rear portion sleeve,
Middle part sleeve, frontal sleeve, upstream group section material are 45# steel.
Throttled in a kind of above-mentioned novel closed formula flow into cone control system, described support is decussate texture；Institute
The one end for stating turn-screw is provided with screw；Screw is fixedly mounted at the center of support.
Throttled in a kind of above-mentioned novel closed formula flow into cone control system, the screw is brass material.
The utility model has the following advantages that compared with prior art：
(1) the utility model employs small-power servomotor+zero position switch and is controlled regulation, and size is compared with stepper motor
+ potentiometer mode is smaller, and structure is simpler.While larger contracting is met than air intake duct and double hair air intake duct model tests,
Blockage ratio is small, is easy to Flow Field in Wind Tunnel to establish, and saves experimentation cost；
(2) the utility model is directly mounted at after air intake test model, simulated engine back-pressure, can be installed additional behind
High-precision flow is measured with flow suction system to meet the needs of aviation air intake duct precision is high, speed is low.
Brief description of the drawings
Fig. 1 is the utility model control system sectional view.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
It is as shown in Figure 1 control system sectional view, as seen from the figure, a kind of novel closed formula flow, which throttles to control into cone, is
System, including downstream group section 1, rear portion sleeve 7, middle part sleeve 8, frontal sleeve 10, upstream group section 12, servomotor 2, deceleration
Device 13, motor cabinet 9, zero position switch 3, guide rail 4, throttling cone 5, turn-screw 11 and support 6；Wherein, downstream group section 1, rear portion
Sleeve 7, middle part sleeve 8, frontal sleeve 10 and upstream group section 12 are hollow cylinder structure；Downstream group section 1, rear portion sleeve
7th, middle part sleeve 8, frontal sleeve 10, the material of upstream group section 12 are 45# steel.Downstream group section 1, rear portion sleeve 7, middle part sleeve
8th, frontal sleeve 10 and upstream group section 12 join end to end vertically successively, the shell of forming control system；Servomotor 2 is along axle
To the axial location for being fixedly mounted on middle part sleeve 8；Decelerator 13 is fixedly mounted on the output end of servomotor 2；Motor cabinet 9 is solid
Dingan County is mounted in the axial location of frontal sleeve 10, and the output shaft of decelerator 13 is stretched into inside motor cabinet 9；Zero position switch 3 fixes peace
Mounted in the axial top of motor cabinet 9；Zero position switch 3 is normally closed type by compressing switch；When zero position switch 3 is closure state, servo
The Double-directional rotary of motor 2；When zero position switch 3 is open mode, servomotor 2 can only turn along making turn-screw 11 stretch out direction
It is dynamic.Guide rail 4 is axially fixed on the small end inwall of frontal sleeve 10；Turn-screw 11 is axially fixed installed in anterior set
The axial location of cylinder 10, and one end of turn-screw 11 is stretched into the inside of motor cabinet 9 and is fixedly connected with the output shaft of decelerator 13；
Support 6 is fixedly mounted on the junction of frontal sleeve 10 and upstream group section 12；The other end of turn-screw 11 is fixedly mounted on
At the center of support 6；The diameter of a diameter of support 6 of turn-screw 11The length of turn-screw 11 is throttling 5 axles of cone
To 1.8-2.2 times of length；Support 6 is decussate texture；One end of the turn-screw 11 is provided with screw；Screw fixes peace
At the center of support 6；Screw is brass material.Throttling cone 5 is fixedly mounted on the outer wall of turn-screw 11.
Wherein, throttling cone 5 is hollow taper structure；Pyramidal structure outer wall be divided into from tip end to tail end conehead section,
Linearity range and endpiece；Wherein endpiece is fixedly connected with guide rail 4, realizes that throttling cone 5 moves axially along guide rail 4；Frontal sleeve 10
Outer wall includes path straightway, oblique line section and big footpath straightway；The oblique line section of the frontal sleeve 10 and the linearity range of throttling cone 5
It is parallel.
The output number of turns that encoder can record motor once electrification is provided with servomotor 2.The connection transmission of servomotor 2
Leading screw 11 drives throttling cone 5 to move forward and backward, and air intake port back-pressure, servomotor 2 are adjusted by changing gas flow area
Export the number of turns to be recorded and exported by encoder, throttling 5 traveling displacements of cone can be converted into by gearratio.
It is that zero-bit is recorded to be defaulted as working as time on-position due to encoder, and there may be midway and power off or control
Program crashing to show the true zero-bit of zero-bit blades, and bores position because closed type device can not directly observe regulation throttling
Put, so the addition of zero position switch 3 is necessary.Zero position switch 3 be a normally closed type by compressing switch, servomotor under normally off
2 can Double-directional rotary drive throttling cone 5 movable, servomotor 2 can only one-directional rotation during open-circuit condition.During cone of nulls position, throttling
5 rear end faces are bored with this zero position switch 3 at a distance of being L, so normal operating condition lower switch is in normally off；When throttling cone 5 loses
During position, the driving throttling of servomotor 2 cone 5 is made slowly to be moved to rear end face pressing zero position switch 3 backward as open circuit, now motor stops
Rotation stop is moved, and then reversely drives the reach distance L of throttling cone 5 to stop, throttling cone 5 returns to zero-bit, and zero position switch 3 recovers normally closed shape
State.
The content not being described in detail in the utility model specification belongs to the known technology of those skilled in the art.
Claims (8)
1. a kind of novel closed formula flow throttles into cone control system, it is characterised in that：Including downstream group section (1), rear sleeve
Cylinder (7), middle part sleeve (8), frontal sleeve (10), upstream group section (12), servomotor (2), decelerator (13), motor cabinet
(9), zero position switch (3), guide rail (4), throttling cone (5), turn-screw (11) and support (6)；Wherein, downstream group section (1), after
Portion's sleeve (7), middle part sleeve (8), frontal sleeve (10) and upstream group section (12) are hollow cylinder structure；Downstream group section
(1), rear portion sleeve (7), middle part sleeve (8), frontal sleeve (10) and upstream group section (12) join end to end vertically successively, group
Into the shell of control system；Servomotor (2) is axially fixed the axial location installed in middle part sleeve (8)；Decelerator (13)
It is fixedly mounted on the output end of servomotor (2)；Motor cabinet (9) is fixedly mounted on the axial location of frontal sleeve (10), and subtracts
It is internal that fast device (13) output shaft stretches into motor cabinet (9)；Zero position switch (3) is fixedly mounted on the axial top of motor cabinet (9)；Guide rail
(4) it is axially fixed on frontal sleeve (10) small end inwall；Turn-screw (11) is axially fixed installed in anterior set
The axial location of cylinder (10), and one end of turn-screw (11) stretch into motor cabinet (9) it is internal and with the output shaft of decelerator (13)
It is fixedly connected；Support (6) is fixedly mounted on the junction of frontal sleeve (10) and upstream group section (12)；Turn-screw (11)
The other end is fixedly mounted at the center of support (6)；Throttling cone (5) is fixedly mounted on the outer wall of turn-screw (11).
2. a kind of novel closed formula flow according to claim 1 throttles into cone control system, it is characterised in that：Described
Throttling cone (5) is hollow taper structure；Pyramidal structure outer wall is divided into conehead section, linearity range and tail from tip end to tail end
Section；Wherein endpiece is fixedly connected with guide rail (4), realizes that throttling cone (5) moves axially along guide rail (4).
3. a kind of novel closed formula flow according to claim 2 throttles into cone control system, it is characterised in that：Before described
The outer wall of portion's sleeve (10) includes path straightway, oblique line section and big footpath straightway；The oblique line section of the frontal sleeve (10) with
The linearity range of throttling cone (5) is parallel.
4. a kind of novel closed formula flow according to claim 3 throttles into cone control system, it is characterised in that：Described
A diameter of support (6) diameter of turn-screw (11)The length of turn-screw (11) is throttling cone (5) axial length
1.8-2.2 times.
5. a kind of novel closed formula flow according to claim 1 throttles into cone control system, it is characterised in that：Described
Zero position switch (3) is normally closed type by compressing switch；When zero position switch (3) is closure state, servomotor (2) Double-directional rotary；When
When zero position switch (3) is open mode, servomotor (2) can only rotate along making turn-screw (11) stretch out direction.
6. a kind of novel closed formula flow according to claim 1 throttles into cone control system, it is characterised in that：Described
Downstream group section (1), rear portion sleeve (7), middle part sleeve (8), frontal sleeve (10), upstream group section (12) material are 45# steel.
7. a kind of novel closed formula flow according to claim 1 throttles into cone control system, it is characterised in that：Described
Support (6) is decussate texture；One end of the turn-screw (11) is provided with screw；Screw is fixedly mounted on support (6)
At center.
8. a kind of novel closed formula flow according to claim 7 throttles into cone control system, it is characterised in that：The silk
Mother is brass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634045.3U CN206974655U (en) | 2017-06-02 | 2017-06-02 | A kind of novel closed formula flow throttles into cone control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634045.3U CN206974655U (en) | 2017-06-02 | 2017-06-02 | A kind of novel closed formula flow throttles into cone control system |
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| Publication Number | Publication Date |
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| CN206974655U true CN206974655U (en) | 2018-02-06 |
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ID=61410675
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| CN201720634045.3U Active CN206974655U (en) | 2017-06-02 | 2017-06-02 | A kind of novel closed formula flow throttles into cone control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204883A (en) * | 2018-11-20 | 2019-01-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of ventilation nacelle for wind tunnel test |
| CN109282864A (en) * | 2018-08-19 | 2019-01-29 | 中国海洋石油总公司 | A kind of underground V cone gas flow testing device |
| CN109780294A (en) * | 2018-08-31 | 2019-05-21 | 中国石油天然气股份有限公司 | Pipeline flow control device and method |
| CN111487029A (en) * | 2020-03-25 | 2020-08-04 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel air inlet passage throttling cone with accurately controlled flow and test throttling device |
| CN112903232A (en) * | 2021-01-22 | 2021-06-04 | 中国空气动力研究与发展中心高速空气动力研究所 | Flow regulating device for wind tunnel test of aircraft atmospheric data system |
| CN112985822A (en) * | 2021-04-20 | 2021-06-18 | 中国空气动力研究与发展中心高速空气动力研究所 | Air inlet channel test device for simulating coupling effect of air inlet channel and fan |
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2017
- 2017-06-02 CN CN201720634045.3U patent/CN206974655U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282864A (en) * | 2018-08-19 | 2019-01-29 | 中国海洋石油总公司 | A kind of underground V cone gas flow testing device |
| CN109282864B (en) * | 2018-08-19 | 2020-03-20 | 中国海洋石油总公司 | Downhole V-cone gas flow testing device |
| CN109780294A (en) * | 2018-08-31 | 2019-05-21 | 中国石油天然气股份有限公司 | Pipeline flow control device and method |
| CN109780294B (en) * | 2018-08-31 | 2020-05-08 | 中国石油天然气股份有限公司 | Pipeline flow control device and method |
| CN109204883A (en) * | 2018-11-20 | 2019-01-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of ventilation nacelle for wind tunnel test |
| CN109204883B (en) * | 2018-11-20 | 2023-10-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Ventilation nacelle for wind tunnel test |
| CN111487029A (en) * | 2020-03-25 | 2020-08-04 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel air inlet passage throttling cone with accurately controlled flow and test throttling device |
| CN111487029B (en) * | 2020-03-25 | 2021-11-02 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel air inlet passage throttling cone with accurately controlled flow and test throttling device |
| CN112903232A (en) * | 2021-01-22 | 2021-06-04 | 中国空气动力研究与发展中心高速空气动力研究所 | Flow regulating device for wind tunnel test of aircraft atmospheric data system |
| CN112985822A (en) * | 2021-04-20 | 2021-06-18 | 中国空气动力研究与发展中心高速空气动力研究所 | Air inlet channel test device for simulating coupling effect of air inlet channel and fan |
| CN112985822B (en) * | 2021-04-20 | 2021-08-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Air inlet channel test device for simulating coupling effect of air inlet channel and fan |
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