CN102345512A

CN102345512A - Protective cover

Info

Publication number: CN102345512A
Application number: CN2011100819635A
Authority: CN
Inventors: 李艳君
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-07
Filing date: 2011-03-16
Publication date: 2012-02-08
Anticipated expiration: 2031-03-16
Also published as: CN102345512B

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 the engine protection device.

Background technique

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

Summary of the invention

The object of the invention provides a kind of aeroengine Safeguard.Foreign material such as both anti-bird, plastic bag get in the motors, again resistance little, ventilate.

Solving the technological scheme that its technical problem adopts is: approximate 1/4th spheries are installed in engine intake the place ahead, and the protective housing that profile is netted, cover is made up of vertical beam, rhombus net, column three parts.For reducing resistance, during design, be the rhombus net with beam deformation, for improving resistivity, the design column is gradient.Vertical beam, rhombus net, column are formed N triangle jointly, utilize leg-of-mutton stability, improve the impact force of opposing bird.Fig. 4 cross section is the position that is connected with engine intake.The subordinate scheme: the cover with thick supports, and covers with bird again and can not get into metal or the fine latitude net that exceeds, and net will more thickly be fixed on the cover, in order to avoid damaged portion sucks in the motor.The outer installation of cover scraped sundries, starts during low-latitude flying, guarantees the ventilation function of cover, divides two kinds of first, second.First is firm, ethylin is alive, can not use simultaneously, can only select one of which for use.Be prevent bird hit the cover on; Preventing to fly skyborne plastic bag covers on cover influence and ventilates or suck in the motor and influence safety.

The invention has the beneficial effects as follows that profile is similar to 1/4th spheries, resistance is little; Structure is netted, ventilate.

Description of drawings

Fig. 1 is a worm's eye view.

Fig. 2 is a side view.

Fig. 3 is a sectional arrangement drawing.

Fig. 4 is a cross-sectional view.

1 is vertical beam among the figure, the 2nd, and the rhombus net, the 3rd, column and ABCDEFGH, the 4th, scrape the sundries first, the 5th, jack rod sleeve, the 6th, slide bar, the 7th, scrape sundries second, the 8th, screw, the 9th, internal thread circular hole.

Embodiment

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

Among Fig. 2, vertical beam (1) and rhombus net (2) side-looking camber, both adopt consistent radian.During manufacturing, can make respectively, also can cause one.The cross section of netting twine can be a circle O shape, semicircle, rhombus, and the size of site, can not get into bird is benchmark.

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

Among Fig. 4, column (3) gradient is respectively E90 °, F67 °, G45 °, H22 °, and close at stressed big position, stressed little position is rare, and is stressed also big near the position of machine chest, but column is short, and resistance power is strong, so also rare.Quantity, the gradient of column (3) according to actual needs, and are done corresponding adjustment.This figure: cross section is the position that is connected with engine intake.Scrape sundries second (7); Being to copy the outer windscreen wiper design of car windscreen glass, be mid point with internal thread circular hole (9), divide left and right two with the bar shape that covers same radian; Be fixed on screw (8) and internal thread circular hole (9) on the mid point of cover back; During startup, two arcs are scraped sundries, slide as the windscreen wiper on the car windscreen.

Claims

1. protective housing is characterized in that: arc vertical beam, rhombus net are formed reticular structure, and one on column is fixed on the vertical beam, and the other end is fixed on the ROV of engine intake the place ahead, and column is gradient, nearly 1/4th spheries of the profile of cover; In addition, support, cover with fine-structure mesh again with cover; Adapter: arc, strip are scraped two kinds of sundries first, second.