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A Designated Limit Position Limiting Device for Linear Motion Components

A technology of linear motion and limit position, which is applied in the direction of jet propulsion devices, machines/engines, etc., can solve problems such as the throat area of ​​small nozzles, and achieve the effects of ensuring normal operation, easy realization, and reliable limit

Active Publication Date: 2021-09-24
BEIJING POWER MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specified position of the linear motion member is related to the minimum nozzle throat area that can be achieved by the adjustable nozzle, and is one of the most important parameters that must be guaranteed, and there is currently no existing device that can achieve this function

Method used

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  • A Designated Limit Position Limiting Device for Linear Motion Components
  • A Designated Limit Position Limiting Device for Linear Motion Components
  • A Designated Limit Position Limiting Device for Linear Motion Components

Examples

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] This embodiment provides a designated limit position limiting device for linear motion components, see the attached Figure 1-6 , including: limit connecting rod 4, rotating connecting rod 3, mounting flange 1 and mounting ear 2;

[0037] See attached Figure 7 , the mounting flange 1 is a part of the adjustable nozzle of the ramjet, or a part of the outlet of the combustion chamber, the mounting flange 1 is a ring structure, used for mounting other moving parts, and is a fixed rigid component;

[0038] See attached Figure 8 , the mounting ear 2 is a conventional mounting ear, and the mounting ear 2 is provided with a connecting hole, which is connected to an adjacent moving component through a pin;

[0039] See attached Figure 9 , the rotating connecting rod 3 is a rigid plate structure, and the two ends of the plate structure in the length d...

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PUM

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Abstract

The invention discloses a designated limit position limiting device of a linear motion component, comprising: a limit connecting rod, a rotating connecting rod, a mounting flange and a mounting ear; one end of the rotating connecting rod is pinned to one end of the limiting connecting rod, and the two The two mounting ears are respectively pinned to the other end of the rotating link and the other end of the limit link, and a rotating link, a limit link and two mounting ears form a kinematic chain; the mounting flange is fixed On the adjustable nozzle of the ramjet engine; more than two kinematic chains are respectively installed between the mounting flange and the linear motion component through the mounting ears; when the linear motion component moves to the specified limit position, the adjacent two kinematic chains The two slant surfaces where the horizontal part of the limit connecting rod is butted fit seamlessly, and all the horizontal parts of the limit connecting rod are butted to form a closed ring structure; the invention can make the linear motion component move to the specified limit position, and then realize The ramjet can adjust the nozzle for a specific function.

Description

technical field [0001] The invention belongs to the technical field of adjustable nozzles of ramjet engines, and in particular relates to a device for restricting designated limit positions of linear motion components. Background technique [0002] The adjustable nozzle is an important part of the ramjet engine. It is one of the most important control variables of the ramjet engine to control the working state of the engine by adjusting the throat area of ​​the nozzle. There is a linear motion component in the adjustable nozzle of some ramjet engines. For special purposes, there is a specified limit position in the range of motion of this component. When the linear motion component reaches this limit position, it needs to move in a certain direction Restriction is performed to complete a certain function of the adjustable nozzle of the ramjet. The specified position of the linear motion component is related to the minimum nozzle throat area that can be achieved by the adjus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K1/06
CPCF02K1/06
Inventor 白艳琨刘金楠程振璞王永卫牛志刚王健
Owner BEIJING POWER MACHINERY INST