阅读说明：本技术 一种分瓣式喷管斜口 (Split type spray pipe bevel connection ) 是由 张翼 于 2020-12-25 设计创作，主要内容包括：本发明提供一种分瓣式喷管斜口,将喷管斜口沿轴向垂直对称面分成对称的两瓣,方便高空舱内发动机试验件的拆装,尤其是轴向尺寸较大的发动机试验件的拆装。为方便加工和对接,将喷管斜口喷头沿轴向对称面分成结构相同的两瓣,即该喷管斜口喷头包括两个半圆形的瓣体,两个瓣体径向对接形成完整的喷管斜口,两个瓣体的对接面上通过沿轴向均匀间隔分布的紧固件固接。为方便对接时在对接面上定位,在两个瓣体的对接面上分别加工有相互配合的凸面和凹面,形成凹凸面的止口。(The invention provides a split-type inclined nozzle port, which is divided into two symmetrical halves along an axial vertical symmetrical plane, so that an engine test piece in a high-altitude cabin can be conveniently disassembled and assembled, and particularly the engine test piece with larger axial size can be conveniently disassembled and assembled. For convenient processing and butt joint, divide into two lamellas that the structure is the same with the nozzle bevel connection shower nozzle along the axial symmetry plane, this nozzle bevel connection shower nozzle includes two semicircular lamella bodies promptly, and two lamella bodies radially dock and form complete nozzle bevel connection, pass through the fastener rigid coupling of the even interval distribution along the axial on the butt joint face of two lamella bodies. In order to facilitate the positioning on the butt joint surface during butt joint, convex surfaces and concave surfaces which are matched with each other are respectively processed on the butt joint surfaces of the two petal bodies to form a spigot of a concave-convex surface.)

1. The utility model provides a split type spray tube bevel connection which characterized in that: the valve comprises two semicircular valve bodies, wherein the two valve bodies have the same structure; two petal bodies are radially butted to form a complete inclined nozzle opening, and the butting surfaces of the two petal bodies are axial symmetry surfaces of the inclined nozzle opening.

2. The split nozzle bezel of claim 1, wherein the abutment surfaces of the two flaps are provided with a positioning structure for positioning during abutment.

3. The split nozzle bezel of claim 2, wherein the positioning structure is a male and female surface formed on the abutting surfaces of the two flaps, respectively, the male and female surfaces forming a male and female spigot.

4. The split nozzle bezel of claim 1 or 2, wherein: the two valve bodies are fixedly connected through fasteners which are evenly distributed on the butt joint surface at intervals along the axial direction.

5. A split nozzle bezel according to claim 1 or claim 2, wherein a sealing strip is provided on the abutting faces of the two flaps.

Technical Field

The invention relates to a nozzle bevel orifice, in particular to a split nozzle bevel orifice.

Background

A nozzle refers to a pipe for accelerating air flow by changing the geometric shape of the inner wall of a pipe section; to ensure the speed and direction of the air flow ejected from the nozzle, it is usually necessary to install a bevel (i.e. an axial end surface of the bevel is a bevel) at the outlet of the nozzle.

The traditional bevel opening is of an integrated structure and is coaxially butted at the outlet of the spray pipe; however, for a nozzle used in a special environment, such as a high-altitude cabin, due to space limitation in the high-altitude cabin, the traditional integrated bevel opening can affect the assembly and disassembly of an engine test piece with a larger axial size.

Disclosure of Invention

In view of the above, the invention provides a split nozzle bezel, which is symmetrically divided into two halves along an axial symmetry plane, so as to facilitate the assembly and disassembly of an engine test piece in a high-altitude cabin, especially the assembly and disassembly of an engine test piece with a larger axial dimension.

The oblique opening of the split type spray pipe comprises two semicircular split bodies, and the two split bodies have the same structure; two petal bodies are radially butted to form a complete inclined nozzle opening, and the butting surfaces of the two petal bodies are axial symmetry surfaces of the inclined nozzle opening.

Preferably, the abutting surfaces of the two petals are provided with positioning structures for positioning during abutting.

Preferably, the positioning structure is a convex surface and a concave surface which are respectively processed on the butt joint surfaces of the two valve bodies, and the convex surface and the concave surface form a spigot.

Preferably, the two petal bodies are fixedly connected through fasteners which are uniformly distributed on the butt joint surface at intervals along the axial direction.

Preferably, a sealing strip is arranged on the abutting surface of the two petals.

Has the advantages that:

(1) the oblique nozzle opening is symmetrically divided into two lobes along the axial symmetry plane, and the two lobes are fixedly connected through a fastener, so that a complete oblique nozzle opening is formed; the inclined opening with the structure is convenient for dismounting the engine test piece in the high-altitude cabin, and particularly the engine test piece with larger axial dimension.

(2) A spigot with a concave-convex surface is arranged between the butt joint surfaces of the two petals, so that the positioning during butt joint is convenient.

Drawings

FIG. 1 is a front view of the split nozzle slash port of the present invention;

FIG. 2 is a top view of the split nozzle slash port of the present invention;

FIG. 3 is a partially enlarged view of the junction between two flaps of the oblique nozzle of the split nozzle of the present invention.

Wherein: 1-flap body I, 2-flap body II, 3-sealing ring

Detailed Description

The invention is described in detail below by way of example with reference to the accompanying drawings.

The embodiment provides a split type inclined nozzle opening, which is symmetrically divided into two parts along an axial vertical symmetrical plane, so that an engine test piece in a high-altitude cabin can be conveniently disassembled and assembled, and especially the engine test piece with a large axial size can be conveniently disassembled and assembled.

As shown in fig. 1 and 2, for the convenience of processing and butt joint, the oblique nozzle opening is divided into two lobes along the axial vertical symmetry plane, that is, the oblique nozzle opening includes two semicircular arc lobes, namely lobe body I1 and lobe body II2, lobe body I1 and lobe body II2 have the same structure, and one axial end face is an inclined plane. The two valve bodies are opposite (in radial butt joint) to form a complete inclined nozzle opening, and the butt joint surfaces of the two valve bodies are fixedly connected through fasteners which are uniformly distributed at intervals along the axial direction; the butt joint surface of the two petal bodies is the axial vertical symmetrical surface of the oblique opening of the spray pipe.

As shown in fig. 3, in order to position in the direction of the butt joint surface, a convex surface and a concave surface which are matched with each other are respectively processed on the butt joint surface of the petal body I1 and the petal body II2 to form a spigot of a concave-convex surface; when in butt joint, the convex surface of the petal body I1 is positioned in the concave surface of the petal body II2 to complete the positioning of the two petal bodies, and then the two petal bodies are fixedly connected.

Sealing is guaranteed on the butt joint surfaces of the two valve bodies through the sealing strips which are arranged in parallel with the axial direction of the two valve bodies.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.