CN104384241A - Device for protecting flexible jet pipe profile from excessive deformation - Google Patents
Device for protecting flexible jet pipe profile from excessive deformation Download PDFInfo
- Publication number
- CN104384241A CN104384241A CN201410555461.5A CN201410555461A CN104384241A CN 104384241 A CN104384241 A CN 104384241A CN 201410555461 A CN201410555461 A CN 201410555461A CN 104384241 A CN104384241 A CN 104384241A
- Authority
- CN
- China
- Prior art keywords
- flexible
- jet pipe
- adjusting
- protective device
- adjustment
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a device for protecting a flexible jet pipe profile from excessive deformation. The device comprises two adjustable triggering rods, two trigger-type sensors, a center support, a rotating shaft and an adjustment lever, wherein the two adjustable triggering rods are respectively mounted on the two sides of the adjustment lever; the adjustment lever is mounted on the center support through the rotating shaft; the center support is connected with a flexible wallboard through a straight pin and a bolt; the two trigger-type sensors are mounted on the flexible wallboard, and respectively positioned below the adjustable triggering rods. By adopting the structure, the overload protection of the flexible jet pipe profile of a wind tunnel is realized, and permanent yield failure, caused by excessive deformation of the flexible jet pipe profile, of the flexible jet pipe profile is prevented.
Description
Technical field
The present invention relates to a kind of flexible jet pipe profile and cross distortion protective device.
Background technology
In the conventional flexible jet pipe course of work, when flexible wall plate benging, flexible wall intralamellar part creates bending stress, and simultaneously in flexible wall plate benging deformation process, the inharmonious meeting of moving due to each drive part makes the stress in flexible wallboard strengthen.For preventing the stress of the inside when flexible wallboard is from a kind of Mach number state transfer to another kind of Mach number state from meeting or exceeding the yield limit of material and permanent deformation occurring; need to cross distortion protection to nozzle contour, namely the protection of maximum distortion curvature is carried out to flexible wallboard.Both at home and abroad at present institute the flexible jet pipe profile of reference can be crossed and be out of shape protective device many employings spring leaf and add cross bar and the mode be combined with trigger sensor is carried out nozzle contour and crossed distortion protection, when flexible wallboard is in straightened condition, adjust upper and lower two trigger sensors and the gap of triggering sheet, this gap is the controlling value drawn by the maximum distortion curvature estimation of flexible wallboard, when flexible wall plate benging is to required Mach number curve shape, if the flexible wallboard local buckling at protection device for installing place is excessive and when reaching controlling value, then be positioned at the upper of this place or lower trigger sensor to come in contact with triggering sheet, thus send instruction to control system, cut off the dynamical system of flexible wallboard driving mechanism by force, destroyed to avoid flexible wallboard to occur deformation.This structure in actual use, because the spring leaf coefficient of elasticity at cross bar two ends is inconsistent, and after repeatedly using, two ends spring leaf has micro-deformation situation to occur, under the requirement that flexible wallboard curvature is accurately controlled, can departure be there is, cause trigger sensor triggering work early or late, thus bring hidden danger to the safety in utilization of flexible wallboard.Meanwhile, in the calibration procedures of reality, due to the sensitivity of spring leaf, the size of tensile force is difficult to furnishing unanimously, so also just result in the inconsistent of spring leaf stress deformation, thus brings trigger error to trigger sensor.
Cross the requirement of distortion protection for flexible jet pipe profile, need design when flexible jet pipe profile continuous modification realizes multiple Mach number, can accurately control the protective device that distortion crossed by flexible wallboard.Requirement simultaneously can realize the accuracy of this protective device, stability and be convenient to maintainability.Owing to the flexible jet pipe profile of reference can cross that to there is adjustment when distortion protective device uses poor both at home and abroad; the problem of precision and stability difference; so needs solved accuracy, the structural stability of distortion protective device and were convenient to maintainability Railway Project in structural design, met above-mentioned requirements.
Summary of the invention
Technical problem to be solved by this invention: overcome the deficiencies in the prior art; provide a kind of can mistake flexible jet pipe profile and be out of shape the device protected; the mistake that this device can realize the flexible wallboard of flexible jet pipe is out of shape protection; prevent the excessive yield strength limit exceeding material of flexible wallboard curvature; thus cause structural stability to be destroyed, cannot use.
The flexible jet pipe profile of solution of the present invention is crossed distortion protective device and is comprised two adjustable frizzens, two trigger sensors, center support, rotating shaft and adjustment (adjusting) levers; two described adjustable frizzens are arranged on the both sides of described adjustment (adjusting) lever respectively; described adjustment (adjusting) lever is arranged on described center support by described rotating shaft; described center support is connected by straight pin and screw with flexible wallboard; two described trigger sensors are arranged on flexible wallboard, and lay respectively at the below of two described adjustable frizzens.
Preferred described adjustable frizzen and described adjustment (adjusting) lever junction are cylindrical fit section, be thread segment below described cylindrical fit section, by cylindrical fit section, described adjustable frizzen is led, by described thread segment, described adjustable frizzen is screwed in described adjustment (adjusting) lever two ends, and by holding screw, two described adjustable frizzens are fixed on the positioning.
Preferably two described trigger sensors are divided into upper and lower both direction to be arranged on flexible wallboard, can be triggered by described adjustable frizzen and spread out of the signal of telecommunication.
Preferred described center support is arranged on the center line of driving mechanism effect.
The upper end of preferred described center support offers the chute that described rotating shaft can be made to slide up and down, and when described adjustment (adjusting) lever is adjusted to the right place, is locked on described center support by described adjustment (adjusting) lever by holding screw.
Preferred described wall nozzle contour is crossed distortion protective device and is being arranged symmetrically with two covers perpendicular to flexible wallboard axis direction, and the described trigger sensor installation site that the described nozzle contour of two covers crosses distortion protective device is contrary.
The present invention's beneficial effect is compared with prior art:
The adjustable frizzen that structure of the present invention adopts and adjustment (adjusting) lever combine adjusted design, reduce the processing and manufacturing difficulty that flexible jet pipe profile crosses distortion protective device, add the convenience regulating and finely tune between trigger sensor and adjustable frizzen, reduce the trigger error brought because workpiece is inconsistent, this structure adjustment (adjusting) lever and center support, owing to adopting rotating shaft and lock-screw structure, can carry out lever fine setting easily, and adjustable frizzen regulate jointly, can improve precision during adjustment, reduce regulated quantity during fine setting, save collating time, this structure is different from and adopts spring leaf to be fixed on cross bar two ends, be out of shape along with flexible wallboard and then be out of shape, to ensure that contact can the mode of trigger sensor, this kind of control mode due to the spring leaf coefficient of elasticity at cross bar two ends inconsistent, and after repeatedly using, two ends spring leaf has micro-deformation situation to occur, under the requirement that flexible wallboard curvature is accurately controlled, departure can be there is, cause trigger sensor triggering work early or late, thus bring hidden danger to the safety in utilization of flexible wallboard, and this device is owing to decreasing spring leaf as middle power transmission link, considerably increase accuracy and the maintainability of device, reduce processing and manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that flexible jet pipe profile crosses distortion protective device.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present invention and feature are described.
As shown in Figure 1, flexible jet pipe profile is crossed distortion protective device and is comprised: holding screw 1, two is adjustable frizzen 2, two trigger sensors 3, center support 4, rotating shaft 5, adjustment (adjusting) lever 6, straight pin 7 and screws 8.
Holding screw 1 is arranged on adjustment (adjusting) lever 6 two ends and close center, and in rotating shaft 5 both sides.Adjustable frizzen 2 is arranged on adjustment (adjusting) lever 6 both sides, adjustment (adjusting) lever 6 is arranged on center support 4, and can with rotating shaft 5 for axle center rotates, center support 4 is connected by straight pin 7 and screw 8 with flexible wallboard, and trigger sensor 3 is arranged on flexible wallboard.
Holding screw 1 adopts M4 ~ M8 screw, adjustable frizzen 2 is cylindrical fit section with adjustment (adjusting) lever 6 junction, be thread segment below cylindrical fit section, by cylindrical fit section, adjustable frizzen 2 led, by thread segment, adjustable frizzen 2 is screwed in adjustment (adjusting) lever 6 two ends; Adjustment (adjusting) lever 6 and center support 4 carry out rotary fine adjustment by rotating shaft 5, carry out fastening locking after having finely tuned by holding screw 1; Center support 4 is provided with rotating shaft 5, for the rotary fine adjustment of adjustment (adjusting) lever 6, and have can for rotating shaft 5 along the chute slided perpendicular to flexible wall board plane direction so that package unit vertical direction adjustment; Trigger sensor 3 is arranged on flexible wallboard, is divided into upper and lower two, controls the curvature defomation of flexible wallboard two positions respectively.
Rear loosening has been adjusted for preventing adjustment (adjusting) lever 6 and adjustable frizzen 2, need to position fastening, holding screw 1 is arranged on adjustment (adjusting) lever 6 two ends and close rotating shaft 5 both sides, center, can lock the adjustable frizzen 2 after fine setting and adjustment (adjusting) lever 6, adjustment (adjusting) lever 6 is arranged on center support 4, carries out rotary fine adjustment by rotating shaft 5; For ensureing that adjustment (adjusting) lever 6 can slide along carrying out perpendicular to flexible wall board plane direction trace, having the chute that can slide up and down for rotating shaft 5 in the upper end of center support 4, when adjustment (adjusting) lever 6 is adjusted to the right place, needing to be locked by holding screw 1; The lower end of center support 4 is connected by straight pin 7 and screw 8 with flexible wallboard; Two trigger sensors 3 are arranged on flexible wallboard respectively, lay respectively at the below of two described adjustable frizzens, and are divided into upper and lower both direction to install, and when trigger sensor 3 has a triggering, the signal of telecommunication spreads out of ability; For ensureing the flexibility of package unit mounting and adjusting, adjustable frizzen 2 can flexible modulation by guide cylinder face and thread segment at adjustment (adjusting) lever 6 two ends.
Wall nozzle contour is crossed distortion protective device and is being arranged symmetrically with another set of perpendicular to flexible wallboard axis direction; it is contrary that two cover nozzle contours cross distortion protective device trigger sensor installation site; namely press the transposition of Fig. 1 symmetry to install, to ensure flexible wallboard forward and reversal deformation all in this unit protection control range.The course of work of the present invention describes:
During flexible jet pipe work, for adjustment flexible wall template face meets the shape of Mach number needed for blasting, need driving mechanism to carry out deformation adjustment to flexible wallboard, make it to meet required Mach number profile curve shape.For ensureing that in flexible wallboard deformation process, material stress value is no more than the yield strength limit and permanent deformation occurs; need profile to cross distortion protective device to control accurately flexible wallboard distortion; when there is deformation, signal can be sent in time, cutting off driving mechanism power source.Center support 4, trigger sensor 3 is arranged on flexible wallboard, and on the center line being in driving mechanism effect of center support 4, so can using center support 4 as the relative centre of trigger sensor 3 being positioned at two ends, when flexible wallboard local deformation is excessive, there is significant change trigger sensor 3 position that is relative and center support 4, this change in location is reflected in again adjustable frizzen 2 with in the spacing of trigger sensor 3, now, adjustable frizzen 2 comes in contact with trigger sensor 3, trigger sensor 3 is triggered and sends the signal of telecommunication simultaneously, cut off driving mechanism power source, thus play the object that permanent deformation does not occur protection flexible wallboard.
Above the preferred embodiment of the present invention is illustrated, but the present invention is not limited to above-described embodiment.To one skilled in the art, in the category described in claims, various modification or fixed case can be expected apparently, certainly also belong to technology category of the present invention.
Claims (6)
1. flexible jet pipe profile crosses a distortion protective device, it is characterized in that: comprise two adjustable frizzens, two trigger sensors, center support, rotating shaft and adjustment (adjusting) levers,
Two described adjustable frizzens are arranged on the both sides of described adjustment (adjusting) lever respectively, described adjustment (adjusting) lever is arranged on described center support by described rotating shaft, described center support is connected by straight pin and screw with flexible wallboard, two described trigger sensors are arranged on flexible wallboard, and lay respectively at the below of two described adjustable frizzens.
2. flexible jet pipe profile according to claim 1 crosses distortion protective device; it is characterized in that: described adjustable frizzen and described adjustment (adjusting) lever junction are cylindrical fit section; be thread segment below described cylindrical fit section; by cylindrical fit section, described adjustable frizzen is led; by described thread segment, described adjustable frizzen is screwed in described adjustment (adjusting) lever two ends, and by holding screw, two described adjustable frizzens are fixed on the positioning.
3. flexible jet pipe profile according to claim 1 crosses distortion protective device, it is characterized in that: two described trigger sensors are divided into upper and lower both direction to be arranged on flexible wallboard, can be triggered by described adjustable frizzen and spread out of the signal of telecommunication.
4. flexible jet pipe profile according to claim 1 crosses distortion protective device, it is characterized in that: described center support is arranged on the center line of driving mechanism effect.
5. flexible jet pipe profile according to claim 1 crosses distortion protective device; it is characterized in that: the upper end of described center support offers the chute that described rotating shaft can be made to slide up and down; when described adjustment (adjusting) lever is adjusted to the right place, by holding screw, described adjustment (adjusting) lever is locked on described center support.
6. cross distortion protective device according to the flexible jet pipe profile in Claims 1 to 5 described in any one; it is characterized in that: described wall nozzle contour is crossed distortion protective device and is being arranged symmetrically with two covers perpendicular to flexible wallboard axis direction, the described trigger sensor installation site that the described nozzle contour of two covers crosses distortion protective device is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555461.5A CN104384241B (en) | 2014-10-17 | 2014-10-17 | Flexible jet pipe profile crosses deformation protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555461.5A CN104384241B (en) | 2014-10-17 | 2014-10-17 | Flexible jet pipe profile crosses deformation protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104384241A true CN104384241A (en) | 2015-03-04 |
| CN104384241B CN104384241B (en) | 2016-08-24 |
Family
ID=52602252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410555461.5A Expired - Fee Related CN104384241B (en) | 2014-10-17 | 2014-10-17 | Flexible jet pipe profile crosses deformation protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104384241B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680332A (en) * | 2018-05-22 | 2018-10-19 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel flexible jet pipe deep camber flex plate coupling arrangement |
| CN108760218A (en) * | 2018-05-22 | 2018-11-06 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel flexible jet pipe deep camber thin-walled flex plate hinge-coupled device |
| CN114414198A (en) * | 2022-03-28 | 2022-04-29 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Driving device for large wind tunnel flexible wall spray pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63130219A (en) * | 1986-11-19 | 1988-06-02 | Sanshin Kogyo Kk | Device for preventing and straightening bend of material for construction |
| CN2127494Y (en) * | 1992-05-04 | 1993-02-24 | 中国科学院光电技术研究所 | Dynamic tester for flexible spray pipe |
| US5513526A (en) * | 1994-07-20 | 1996-05-07 | The United States Of America As Represented By The Secretary Of The Navy | Hydrofoil force balance |
| CN2298514Y (en) * | 1997-07-18 | 1998-11-25 | 西北建筑工程学院 | Lever-type bend tester |
| CN103308397A (en) * | 2013-06-18 | 2013-09-18 | 中国海洋石油总公司 | Four-point bending test device for full-size metal composite tube |
| CN103630326A (en) * | 2013-12-15 | 2014-03-12 | 中国航空工业集团公司哈尔滨空气动力研究所 | Deformation-resisting measurement arm used in wind-tunnel balance body axis calibration and application of deformation-resisting measurement arm |
-
2014
- 2014-10-17 CN CN201410555461.5A patent/CN104384241B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63130219A (en) * | 1986-11-19 | 1988-06-02 | Sanshin Kogyo Kk | Device for preventing and straightening bend of material for construction |
| CN2127494Y (en) * | 1992-05-04 | 1993-02-24 | 中国科学院光电技术研究所 | Dynamic tester for flexible spray pipe |
| US5513526A (en) * | 1994-07-20 | 1996-05-07 | The United States Of America As Represented By The Secretary Of The Navy | Hydrofoil force balance |
| CN2298514Y (en) * | 1997-07-18 | 1998-11-25 | 西北建筑工程学院 | Lever-type bend tester |
| CN103308397A (en) * | 2013-06-18 | 2013-09-18 | 中国海洋石油总公司 | Four-point bending test device for full-size metal composite tube |
| CN103630326A (en) * | 2013-12-15 | 2014-03-12 | 中国航空工业集团公司哈尔滨空气动力研究所 | Deformation-resisting measurement arm used in wind-tunnel balance body axis calibration and application of deformation-resisting measurement arm |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680332A (en) * | 2018-05-22 | 2018-10-19 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel flexible jet pipe deep camber flex plate coupling arrangement |
| CN108760218A (en) * | 2018-05-22 | 2018-11-06 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel flexible jet pipe deep camber thin-walled flex plate hinge-coupled device |
| CN108760218B (en) * | 2018-05-22 | 2020-01-24 | 中国航空工业集团公司沈阳空气动力研究所 | Hinge connecting device for large-curvature thin-wall flexible plate of wind tunnel flexible wall spray pipe |
| CN114414198A (en) * | 2022-03-28 | 2022-04-29 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Driving device for large wind tunnel flexible wall spray pipe |
| CN114414198B (en) * | 2022-03-28 | 2022-05-27 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Driving device for large wind tunnel flexible wall spray pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104384241B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104384241A (en) | Device for protecting flexible jet pipe profile from excessive deformation | |
| CN201925605U (en) | Multi-direction adjusting pipeline fixing device | |
| CN205045362U (en) | Conveyor means in adjustable clearance | |
| CN106764293A (en) | Upper beam mounting bracket and the angular adjustment seat of safe light curtain | |
| CN106838595A (en) | The special multipoint safety light curtain of bender | |
| CN103101751A (en) | Conveying and correcting mechanism for goods packaged in bags | |
| CN204996961U (en) | Material feeding unit of round as a ball machine of panel | |
| CN106870917A (en) | Efficient bender safe light curtain and bender control method | |
| CN204868109U (en) | Steel bar truss production line | |
| CN201398265Y (en) | Air knife regulating device | |
| CN201754648U (en) | Two-dimension positioning adjustment device | |
| CN2885451Y (en) | Adjustable buffer rear baffle | |
| CN206111850U (en) | Linear slide rail | |
| CN205631409U (en) | Open -type 3D printer | |
| CN202263866U (en) | Semi-rigid cable bending machine with automatic positioning function | |
| CN202364783U (en) | Nozzle fixing device and conditioning and casing cylinder | |
| CN104261173B (en) | A kind of millimeter paper Scissoring device | |
| CN208786775U (en) | A kind of impact point positioning device of plasma spraying | |
| CN207859484U (en) | A kind of automatic wire feed system | |
| CN201549390U (en) | Stroke switch position regulator | |
| CN206817149U (en) | The special multipoint safety light curtain of bender | |
| CN206754788U (en) | Efficient bender safe light curtain and bender | |
| CN208991628U (en) | A kind of bracket of GIGAbend Folding System safety guard | |
| CN212857268U (en) | Stop device of bending machine on bending machine | |
| CN202336553U (en) | T-shaped sliding mechanism |
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: 20160824 Termination date: 20191017 |