Soft-wall nozzle profile over-deformation protection device

A soft-wall nozzle and protection device technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as poor adjustment, poor accuracy and stability, and achieve improved accuracy, reduced processing and manufacturing costs, and increased convenience. sexual effect

Inactive Publication Date: 2016-08-24
BEIJING AEROSPACE YISEN WIND TUNNEL ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the over-deformation protection device of the soft-wall nozzle surface that can be referred to at home and abroad has the problems of poor adjustment, poor accuracy and stability, it is necessary to solve the accuracy, structural stability and convenience of the over-deformation protection device in the structural design. Several maintenance issues, to meet the above requirements

Method used

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  • Soft-wall nozzle profile over-deformation protection device

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Embodiment Construction

[0014] The principles and features of the present invention will be described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, the soft-wall nozzle surface over-deformation protection device includes: set screw 1, two adjustable trigger levers 2, two trigger sensors 3, center support 4, rotating shaft 5, adjustment lever 6, cylindrical pin 7 and screw 8.

[0016] The set screw 1 is installed at the two ends of the adjusting lever 6 and close to the center, and on both sides of the rotating shaft 5 . The adjustable trigger lever 2 is installed on both sides of the adjustment lever 6, and the adjustment lever 6 is installed on the center support 4, and can rotate with the rotating shaft 5 as the axis, and the center support 4 and the flexible wall plate are connected by cylindrical pins 7 and screws. 8 connections, the trigger sensor 3 is mounted on a flexible wall.

[0017] The set screw 1 adopts M4~M8 screws, the connection between th...

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PUM

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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 [0001] The invention relates to a protection device for over-deformation of the surface of a soft-wall nozzle. Background technique [0002] During the working process of the conventional flexible wall nozzle, when the flexible wall plate is bent, bending stress is generated inside the flexible wall plate. stress increases. In order to prevent the permanent deformation of the flexible wall plate when the internal stress reaches or exceeds the yield limit of the material when the flexible wall plate is transformed from one Mach number state to another Mach number state, it is necessary to protect the nozzle profile from over-deformation, that is, to protect the flexible The siding is protected against maximum deformation curvature. At present, the flexible-wall nozzle surface over-deformation protection devices that can be referred to at home and abroad mostly use springs and cross bars combined with trigger sensors to protect the nozzle surface from over-de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C51/00
CPCB21C51/00
Inventor 卜俊辉孙勇堂石运军刘怀印王盛楠孙涛张淑菊
Owner BEIJING AEROSPACE YISEN WIND TUNNEL ENG TECH
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