CN102345512B

CN102345512B - Protective cover

Info

Publication number: CN102345512B
Application number: CN201110081963.5A
Authority: CN
Inventors: 李艳君
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-07
Filing date: 2011-03-16
Publication date: 2015-03-18
Anticipated expiration: 2031-03-16
Also published as: CN102345512A

Abstract

The invention discloses a protective cover which is an engine protector, comprising N triangles which consists of an arc vertical beam (1), a diamond net (2), and a tapered cylinder column (3). By using the stability of the triangles, the resisting performance of the percussive force from foreign objects is improved. The cross section in the figure 4 represents a joint between the cover and an air intake of the engine. In addition, the cover is used as a support and is covered with a metal or fiber mesh; an arc scraper A having same radian with the cover and a bar scraper B are arranged outside the cover for selection; a slider sleeve (5) of the scraper A is sleeved on a slider (6); and the scraper B (7) is fixed next to the cover with a screw (8) and an internal thread hole (9). The cover is a near quarter sphere, has little resistance, netted structure, and good ventilation.

Description

Protective housing

Technical field

The invention belongs to engine protection device.

Background technique

The second half year in 2009, see from TV, the perforated flat plate shape protective equipment of picture " door " installed by airplane engine suction port, and its resistance is large, ventilation is poor.Do not know whether apply.

Summary of the invention

Object of the present invention, is to provide a kind of aeroengine Safeguard.Both the foreign material such as anti-bird, plastic bag entered in motor, again resistance little, ventilate.

Solving the technological scheme that its technical problem adopts is: install one approximate 1/4th spherical in engine intake front, the protective housing that profile is netted, covers and be made up of vertical beam, rhombus net, column three part.For reducing resistance, during design, be rhombus net by beam deformation, for improving resistivity, design column is gradient.Vertical beam, rhombus net, column form N number of triangle jointly, utilize leg-of-mutton stability, improve the impact force of opposing bird.Fig. 4 cross section is the position be connected with engine intake.Subordinate scheme: support with thick cover, then cover with and can not enter with bird the metal or fine latitude net that are limited, net will more thickly be fixed on cover, in order to avoid damaged portion sucks in motor.The outer installation of cover scrapes sundries, starts, ensures the ventilation function of cover, point first, second two kinds during low-latitude flying.First is firm, ethylin is alive, can not use simultaneously, can only select one.Prevent bird from hitting on cover; Prevent from flying the impact on cover of skyborne plastic bag illiteracy ventilate or affect safety in suction motor.

The invention has the beneficial effects as follows profile approximate 1/4th spherical, resistance is little; Structure is netted, ventilate.

Accompanying drawing explanation

Fig. 1 is worm's eye view.

Fig. 2 is side view.

Fig. 3 is sectional arrangement drawing.

Fig. 4 is cross-sectional view.

In figure, 1 is vertical beam, and 2 is rhombus nets, and 3 is column and ABCDEFGH, and 4 is scrape sundries first, and 5 is jack rod sleeves, and 6 is slide bars, and 7 is scrape sundries second, and 8 is screws, and 9 is internal thread circular holes.

Embodiment

Consult Fig. 1, protective housing forms netted by vertical beam (1) and rhombus net (2).

In Fig. 2, vertical beam (1) and rhombus net (2) side-looking camber, both adopt consistent radian.During manufacture, can make respectively, also can make all-in-one-piece.The cross section of netting twine can be circle O shape, and semicircle, rhombus, the size of site, can not enter as benchmark with bird.

In Fig. 3, column (3), cylindrical body, one solid at aircraft chest, and one solid on vertical beam (1), and gradient is A20 ° respectively, B35 °, C45 ° D55 ° E70 °.Scraping the arc bar that sundries first (4) is radian same with cover, can be one or more, and jack rod sleeve (5) is enclosed within (6) on slide bar, horizontally slips during startup.

In Fig. 4, column (3) gradient is E90 ° respectively, F67 °, G45 °, H22 °, close at stressed large position, stressed little position is rare, stressed also large near the position of machine chest, but column is short, and power of resisting is strong, so also rare.Quantity, the gradient of column (3), according to actual needs, and do corresponding adjustment.This figure: cross section is the position be connected with engine intake.Scrape sundries second (7), copy the windscreen wiper outside automobile front windowpane to design, within thread circle hole (9) be mid point, point left and right two with the bar shape covering same radian, be fixed on the mid point of cover back with screw (8) and internal thread circular hole (9), during startup, two arcs scrape sundries, slide as the windscreen wiper on car windscreen.

Claims

1. a protective housing, it is characterized in that: arc vertical beam, rhombus net composition reticular structure, described arc vertical beam, rhombus net adopt consistent radian, one, column is fixed on vertical beam, other end is fixed in the aircraft of engine intake front, column is gradient, and the profile of cover is nearly 1/4th spherical; In addition, support with cover, then cover with fine-structure mesh; Adapter: arc, strip scrape sundries first, second two kinds, the jack rod sleeve of described column bottom, is enclosed within slide bar.