JP6142063B1 - Rear support device for removable pressure bulkhead of jet machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a removable pressure bulkhead of a jet machine, since it is rubbery, there is no pressure difference between the inside and outside of the body as it is landed from a high altitude, and the pressure bulkhead slightly drops. Therefore, a pressing force is applied to the modified T-shaped frame. SOLUTION: The rear part of the spherical top of the pressure bulkhead is hung so that it does not sag even when landing. This is safe because no pressure is applied to the deformed T-shaped frame. [Selection] Figure 2

Description

  The present invention relates to a rear support device for a removable pressure bulkhead of a jet machine.

The detachable and pressure bulkhead (hereinafter referred to as the pressure bulkhead) of the jet machine of 0003 prior art document is rubbery, so there is no pressure difference between the inside and outside of the body as it lands from high altitude, and the pressure bulkhead is slight. Droop.
Therefore, a pressing force is applied to the modified T-shaped frame.

Japanese Patent Application No. 2016-128147 Title of the invention Removable pressure bulkhead for a jet machine

  The pressure applied to the deformed T-shaped frame of the pressure partition of 0003 is small and no problem compared to the allowable stress of the deformed T-shaped frame because the pressure bulkhead is lightweight, but from the philosophy of safety, safety, The purpose is to reduce the pressure applied to the pressure bulkhead and give a sense of security.

  In the present invention, the central part of the inner and outer surfaces of the spherical section of the pressure bulkhead attached to the deformed T-shaped frame is formed thick, the contact plate is applied to the inner thickness of the inner surface, and the inner thickness of the outer surface is applied. Larger than the plate, the outer diameter forms a taper, and a suspension plate with six bolt holes formed in the taper is attached to the plate with the two bolt holes facing upwards. Two rows of unequal-sided inclined frames are attached to the outer plate in the direction at intervals where large-diameter long wheels enter, and, like the taper, six bolt holes are drilled in the entire circumference, and the suspension plate Attach large diameter U-bolts to the top two bolt holes and the bolt through holes on both sides, and attach large-diameter long rings to the unequal-sided inclined frame, and loosen them with a supple wire rope twisting a thin wire between the U-bolts and the long rings. It is hung on and clamped with a wire clip.

The wire rope does not need to be on the lower side, but in consideration of attachment depending on the situation, a taper and an unequal side inclined frame were perforated.
Further, the number of the attachment holes of the ropes is six, but the number of the wire ropes may be increased as necessary, and a peer wire or chain may be used instead of the wire rope.
Alternatively, only one row of unequal side inclined frames may be attached, U bolts may be attached instead of the long wheels, and hung with wire ropes.

強度を増す効果がある。Since the present invention is formed as described above, even if the spherical surface portion of the pressure bulkhead slightly hangs down as it lands, the wire rope supports it so that it hangs only slightly.
Therefore, the pressing force of the pressure partition applied to the modified T-frame is reduced.
In addition, at this time, a tensile load is applied to the unequal-side inclined frame to which the wire is attached, but the pressure bulkhead is lightweight, and the load applied to both of the deformed T-type frames is smaller than the allowable stress.

There is an effect of increasing the strength.

Moreover, since the long wheel and the U-bolt are formed to have a large diameter and the wire rope is bent without difficulty, the wire rope is not damaged.
Since the wire rope is loosely attached to the pressure bulkhead, the deformed T-shaped frame and the unequal-side inclined frame are not affected during the flight, which is safe.

  Front view of a jet machine equipped with the present invention   1 is a longitudinal front view of FIG.   Right side view of FIG.   Front view of U bolt   Side view of FIG.   Front view of wheels   Side view of FIG.

In the figure, reference numeral 1 denotes a pressure partition, which is attached to the modified T-shaped frame 2.
In the present invention, the inner surface and outer surface of the spherical surface of the pressure bulkhead 1 are formed to have a thickness of 3, the contact plate 4 is applied to the thickness 3 of the inner surface, and the outer surface thickness 3 has a larger diameter than the contact plate 4 and the outer periphery. A suspension plate 5 having six taper holes 7 formed in the taper 6 is integrally attached to the contact plate 4 with the two bolt through holes 7 facing upward.
Reference numeral 8 denotes an outer plate, and two rows of unequal-side inclined frames 9 are attached to the inner side of the outer plate 8 at intervals at which large-diameter long wheels 10 enter the taper 6 direction. The unequal-side inclined frame 9 has six bolt holes 7 in the direction of the taper 6.
Thus, U bolts 11 are attached to the upper two of the suspension plate 5 and the bolt through holes 7 on both sides, and a long ring 10 is attached to the bolt through hole 7 of the unequal-side inclined frame 9 between the U bolt 11 and the long ring 10. The wire rope 12 is stretched loosely and tightened with a wire clip 13.

  The U bolt 11 and the long ring 10 are preferably made of a hollow material in order to reduce the weight.

DESCRIPTION OF SYMBOLS 1 Removable pressure bulkhead 2 Deformation T type frame 3 Thickness 4 This plate 5 Suspension plate 6 Taper 7 Bolt through-hole 8 Outer plate 9 Unequal side inclined frame 10 Long wheel 11 U bolt 12 Wire rope 13 Wire clip

Claims (3)

A rear support device removable pressure bulkhead of jets hung rear of the spherical top of the removable pressure bulkhead attached to a modified T-frame, forms the central portion of the inner and outer surfaces of the spherical top portion of the pressure partition wall thickness The outer plate is thicker than the outer plate, the outer periphery is tapered, the outer periphery is tapered, and a suspension plate with six bolt holes in the taper is passed through the two bolts. Attaching to the plate with the hole facing upward, and attaching two rows of unequal-sided inclined frames to the outer plate in the taper direction at intervals where the long wheels enter, and in the same way as the taper, Open six bolt holes, and attach U bolts to two of the suspension plates and the bolt holes on both sides, attach long rings to the unequal-side inclined frame, and loosen the wire rope between the U bolts and the long rings. Removable pressure of jets characterized by hanging on Rear support device of the partition.   The detachable pressure of a jet aircraft according to claim 1, wherein the number of bolt through holes opened in the suspension plate and the unequal side inclined frame is an even number of 6 or more, and the number of wire ropes can be increased. Rear support device for bulkhead. The rear support device for a detachable pressure bulkhead of a jet aircraft according to claim 1 or 2, wherein only one row of unequal side inclined frames is attached to the outer plate, and U bolts are attached instead of the long wheels.

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