CN103921952A

CN103921952A - C-shaped universal steam catapult

Info

Publication number: CN103921952A
Application number: CN201310051317.3A
Authority: CN
Inventors: 李静
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-11
Filing date: 2013-01-11
Publication date: 2014-07-16

Abstract

In the current world, an aircraft carrier plane has three modes of takeoff: ski jump takeoff, vertical takeoff and catapulting takeoff. When performs the ski jump takeoff, the aircraft carrier plane does not need a special device, and has few requirements for an airframe structure, dispatch rate of the ski jump takeoff is comparable to dispatch rate of the catapulting takeoff, the aircraft carrier plane can be continuously dispatched, and use times of a catapult are not limited, but the aircraft carrier plane is required to have a high thrust weight ratio and short haul launching capacity. The catapulting takeoff comprises steam catapulting and electromagnetic catapulting. Theoretically, a steam catapult is not complex. One of the key technologies of the steam catapult is that an opening of a C-shaped air cylinder is sealed. In recent years, our country has great progress on large machinery manufacturing and processing technology, the technical problems of air cylinder sealing are solved, and our country can fully break monopolies and manufacture our own catapults. The steam catapult uses a specific piston and a specific sealing strip to simultaneously seal and open the C-shaped air cylinder, and a draw hook integrated with the piston and arranged on the exterior of the C-shaped air cylinder can freely move so as to drag the plane on a pulley to take off.

Description

The general steam catapult of C type

Technical field;

A kind of straight deck, sliding general C type steam catapult in deck that jumps of being applicable to.

Technical background;

The aircraft carrier ship-board aircraft mode of taking off has three kinds in the world at present, sliding jump, vertically, launch.Sliding jumping up flies to need special equipment, housing construction is required the end of to, on land airplane, warship is easy, its turnout and catapult-assisted take-off are suitable, can set out continuously and without the restriction of ejector access times, work aircraft while flying away from warship and remain controls (catapult-assisted take-off initial stage be actually without control), but require aircraft to there is high thrust-weight ratio and short takeoff ability, taking off can not be heavily loaded, and high temperature takes off and divides steam ejection, electromagnetic launch.The advantages such as that electromagnetic launch has is lightweight, volume is little, but electricity plays technical sophistication, technical also immature, China is not in the small-scale feasibility study stage in this field, and the possibility of upper warship is very little.There is manufacture and the use experience of high-power high voltage steam boiler in China, develop on this basis aircraft carrier steam power and do not have too large difficulty, C shape ejector is also uncomplicated in theory, its gordian technique is the sealing of C shape cylinder openings, China makes great progress on big machinery manufacture and technology in recent years, solved cylinder packing technique problem, we can break up monopoly produce the ejector of oneself completely.

Summary of the invention;

Steam catapult of the present invention utilizes special piston and sealing band to seal simultaneously, open C shape cylinder, and piston one and the hauling hook in C shape cylinder outside freely move, taking off on extension pulley.

Accompanying drawing explanation;

Fig. 1 is straight deck, the sliding general C type steam catapult fundamental diagram in deck that jumps.

Fig. 2 is piston deceleration schematic diagram.

Fig. 3 is special piston principle figure.

Fig. 4 is sealing band instruction diagram.

Fig. 5 is the site plan of sealing band in cylinder.

Fig. 6 is cylinder instruction diagram.

Fig. 7 piston cutaway view.

Fig. 8 is piston, cylinder, sealing band principle of work cutaway view.

Fig. 9 is ejector working effect figure.

The specific embodiment:

Described in [0003], C type cylinder is the open circles of a circumscribed polygon, at opening part tube wall, be processed into splayed opening, splayed configuration A/F top is the width at sealing band circle and triangle junction surface, bottom is triangular base width, sees (Fig. 6) cylinder band segmentation manufacture, and combination is installed, minute first section, stage casing, rear, the quantity that increases stage casing is determined the total length of C type cylinder.

Described in [0003], piston is the hollow cylinder in the middle of two diameter is greater than, and at cylinder, central authorities are provided with tape guide roller, top is hauling hook, and the cylinder upper shed of hauling hook both sides is used for through sealing band, and two ends are provided with carrier wheel, see (Fig. 1), (Fig. 7)

Described in [0003], sealing band is to be made by resistant to elevated temperatures rubber, and top is that hollow circle, a bottom are equilateral hollow triangles, and circle and leg-of-mutton junction surface are the width of C type cylinder fluting, at the flexible strip of the attached one deck 1-2mm of triangular base, increase resistance to abrasion.The effect of hollow circle is the position of sealing band in cylinder.See (Fig. 4)

According to the special piston that can move in arc cylinder [0014] Suo Shu, because the particularity of the piston of ejector, is provided with the parts such as tape guide roller in piston body, and piston is two-way, the length of piston is in 1000mm left and right, and traditional piston can not move in arc cylinder.Can piston depend on the radian size of cylinder and the length of piston in the operation of arc cylinder, I divide three parts by this special piston of design, the diameter of centre portion is less than the contact of cylinder diameter discord cylinder, both sides are identical Split pistons, with wearing axle, connect, as (Fig. 3), the angle that the split plug on both sides has an easy on and off deflection with respect to centre portion like this as, so this special piston just can move in little radian, large arc length cylinder, equally also can move in straight line cylinder.

As follows according to [0013], [0014], [0015], [0016] described ejector principle of work.

One; Launch;

Open air valve b and aie escape valve, close blow off valve a, high pressure steam enters promotion piston advances forward from admission port, sealing band enters in cylinder seal groove under the pushing of carrier wheel A, sealing air cylinder prevents steam leakage, under the effect of sealing band through tape guide roller, carrier wheel B simultaneously, depart from cylinder packing groove, so that hauling hook passes through.At this moment hauling hook band movable block and be fixed on supratrochlear aircraft and travelled forward and once launched at a high speed.See (Fig. 1), (Fig. 9)

Two; Piston deceleration;

Having launched primary piston need to stop in time, and piston high-speed motion under the promotion of high pressure steam, has formed huge impulsive force owing to launching, and in very short time and distance, stop, and just needs to alleviate in time to discharge its impulsive force.It really launches end steam pressure and declines gradually, piston is to lean on inertia motion substantially, when piston runs to retaining segment, high pressure steam is discharged pressure release from leakage port, and the front end of piston also plays certain shock damping action because the air in cylinder is compressed, and at leakage port place, establish one arrester wires and can make piston stop in time completely by hydraulic cylinder damping coaster.As (Fig. 1) (Fig. 2)

Three; Reset;

After completing and once launching, hauling hook need reset and prepare to launch next time.Close gas check valve b and aie escape valve.Open blow off valve a, from reverse admission port input high pressure steam, promote piston reverses direction motion, make coaster identical with ejection mechanism resets.See (Fig. 1)

Above enforcement is only that preferred implementation method of the present invention is described; not scope of the present invention is limited; under the prerequisite of spirit that does not depart from the present invention's design; various distortion and improvement that the common engineering staff in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.

Claims

1. the technical characterictic of this patent is; The particularity of piston, piston in cylinder automatic-sealed in operational process, open cylinder openings, and piston one and stretch out the hauling hook of cylinder outside, before and after cylinder outside, operation is freely.

2. the special piston that can move in arc cylinder.

3. adopt arrester wires and air damping brake piston.

4. due to the particularity of piston, adopt oppositely input high pressure steam return piston, saved reset specialized equipment, alleviated overall weight.