CN113218255A

CN113218255A - Separation mechanism with adjustable radome separation power

Info

Publication number: CN113218255A
Application number: CN202110478729.XA
Authority: CN
Inventors: 何爱颖; 张伟方; 谢雪明; 陈景鹏; 于晗; 石亦琨
Original assignee: Beijing Xingtu Exploration Technology Co ltd
Current assignee: Beijing Xingtu Exploration Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-08-06

Abstract

The invention discloses a separation mechanism with adjustable separation force of a fairing. The separating mechanism comprises a fixed support, a spring, a push rod, a sleeve, a locking pin, a locking nut and the like, and the whole separating mechanism is connected to the fairing through a bolt. Firstly, a push rod and a spring are arranged in a sleeve, and a locking nut is screwed into the sleeve; then the spring is pressed, the locking pin is inserted into the mounting holes of the sleeve and the push rod, the separation force of each separation mechanism on the fairing is consistent by adjusting the depth of the locking nut screwed into the sleeve, and the flying posture and the stability of the rocket body are not influenced when the fairing is separated. Key words: fairing, push rod, lock nut.

Description

Separation mechanism with adjustable radome separation power

Technical Field

The invention belongs to the technical field of carrier rockets and the like, and particularly relates to a fairing separation mechanism.

Background

The fairing for carrying rocket projectiles generally adopts a throwable structural form, after the carrier rocket flies out of the atmosphere, tasks such as load protection, rocket body appearance maintenance, aerodynamic resistance reduction and the like are completed, and in order to improve efficiency, increase the carrying capacity of the rocket and give way for a release channel of the load, the fairing needs to be thrown away.

The separating mechanism is used as a separating energy source when the fairing is separated from the arrow body, and generally a spring is selected as separating power. And the separation force of each separation mechanism on the fairing is difficult to ensure the consistency due to the existence of errors of processing, assembly and the like, so that the flying attitude and the stability of the rocket body are influenced due to the inconsistency of the separation force when the fairing is separated.

Disclosure of Invention

In order to solve the problems, the invention provides a separation mechanism with adjustable separation force of a fairing, which is simple and compact, high in reliability, easy to process, convenient to install and operate, adjustable in separation force, and capable of ensuring that the separation force of each separation mechanism of the fairing is consistent in magnitude, so that the flying posture and the stability of an arrow body are not influenced when the fairing is separated.

A separation mechanism with adjustable fairing separation force comprises a fixed support, a spring, a push rod, a sleeve, a locking pin, a locking nut and the like, and is fixed on a fairing through a bolt; the method comprises the steps of firstly installing a push rod and a spring in a sleeve, screwing a locking nut into the sleeve, then pressing the spring tightly, inserting a locking pin into installation holes of the sleeve and the push rod, and adjusting the screwing depth of the locking nut into the sleeve to enable the separating force of each separating mechanism on a fairing to be consistent.

One end of the sleeve is provided with a flange which is connected to the fixed support through a bolt; the other end of the spring is a thin-wall cylinder, a push rod is arranged in the thin-wall cylinder to provide a guiding effect for the movement of the push rod, and when the spring reaches the maximum stroke, the push rod is limited to continue moving to prevent the push rod from falling off; the opening of the thin-wall cylinder is provided with threads, and after the push rod and the spring are arranged in the sleeve, the locking nut is screwed into the opening of the thin-wall cylinder.

One end of the push rod is a solid shaft and is in contact with the arrow body under the action of spring elasticity, the other end of the push rod is a thin-walled cylinder, a spring is installed in the thin-walled cylinder, the outer wall of the thin-walled cylinder is matched with the inner wall of the sleeve, the push rod is guaranteed not to incline in the moving process, and the stability of the spring in working is maintained.

The spring is arranged in the push rod and the sleeve, so that potential safety hazards caused by the fact that the spring is exposed outside are effectively prevented.

The outer ring of the locking nut is provided with threads, and the end face of the locking nut is provided with a hexagonal through hole, so that the locking nut is convenient to tighten and the spring force is convenient to adjust.

The push rod and the sleeve are provided with locking pin holes, and after the push rod, the spring and the locking nut are arranged in the sleeve, the locking pin is inserted into the locking pin hole to be in a locking state, so that the fairing is conveniently connected with the arrow body; measuring the elasticity of the spring through a force measuring tool, and adjusting the depth of screwing the locking nut into the sleeve to ensure that the elasticity of each separating mechanism on the fairing is consistent; after the fairing is installed on the arrow body, the locking pin is pulled out through an operation opening on the fairing, and the elastic force of the spring is released, so that the spring acts on the arrow body through the push rod.

Drawings

FIG. 1 is a front view of the mechanism of the present invention

FIG. 2 is a bottom view of the mechanism of the present invention

FIG. 3 is a diagram showing the structure of the present invention after operation

FIG. 4 is a view showing the construction of a lock nut according to the present invention

The device comprises a fixed support 1, a fairing 2, a locking pin operation opening 3, a locking nut 4, a push rod 5, a spring 6, a sleeve 7 and a locking pin 8.

Detailed Description

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

As shown in fig. 1 to 4, the invention provides a fairing separating force adjustable separating mechanism, which comprises a fixed support 1, a sleeve 7, a spring 6, a locking pin 8, a push rod 5, a locking nut 4 and the like;

the fixed support 1 is fixedly connected to the fairing 2 through a bolt;

the push rod 5 and the spring 6 are arranged inside the sleeve 7 and limited to move by the locking nut 4; the spring 6 is pressed tightly, and the push rod 5 and the spring 6 are fixed in the sleeve 7 by the locking pin 8. The elasticity of the spring 6 is measured by a force measuring tool, and the depth of screwing the locking nut 4 into the sleeve 7 is adjusted to ensure that the elasticity of the spring 6 is within a required range; connecting the sleeve 7 which is well installed and adjusted on the fixed support 1 through a flange;

after the fairing 2 is installed on the arrow body, the locking pin 8 is pulled out from the push rod 5 and the sleeve 7 through the operation opening 3 on the fairing 2, and the elastic force of the spring 6 is released, so that the elastic force of the spring 6 acts on the arrow body through the push rod 5.

When the fairing 2 is separated, after an explosive bolt for connecting the fairing 2 and the arrow body is unlocked, the fairing 1 and the arrow body are separated by the push rod 5 under the action of the spring 6; when the spring 6 reaches the maximum stroke, the lower end surface of the sleeve 7 limits the push rod 5 to continue moving, and the push rod 5 is prevented from falling.

Claims

1. The utility model provides a separating mechanism with adjustable radome separation force which characterized in that: the structure comprises a fixed support 1, a sleeve 7, a spring 6, a locking pin 8, a push rod 5, a locking nut 4 and the like.

2. The fixing mount 1 as claimed in claim 1, wherein: the fixed support 1 is connected to the fairing 2 through bolts.

3. A sleeve 7 according to claim 1, wherein: one end of the sleeve 7 is provided with a flange and is connected to the fixed support 1 through a bolt; the other end is a thin-wall cylinder, and a push rod 5 is arranged in the thin-wall cylinder.

The thin-walled cylinder has the following functions: firstly, a guiding function is provided for the movement of the push rod 5; secondly, when the spring 6 reaches the maximum stroke, the push rod 5 is limited to move continuously, and the push rod 5 is prevented from falling.

Threads are arranged at the opening of the thin-wall barrel, and after the push rod 5 and the spring are arranged in the sleeve 7, the locking nut 4 is screwed into the opening of the thin-wall barrel to limit the push rod 5 to move.

4. The putter 5 of claim 1 wherein: one end of the push rod 5 is a solid shaft and is in contact with the arrow body under the action of elastic force of the spring 6, the other end of the push rod is a thin-walled cylinder, the spring 6 is installed in the thin-walled cylinder, the outer wall of the thin-walled cylinder is matched with the inner wall of the sleeve 7, the push rod 5 is guaranteed not to incline in the moving process, and the stability of the spring 6 in working is maintained.

5. The separation force adjustable separation mechanism according to claims 1, 3, 4, wherein: the spring 6 is arranged inside the push rod 5 and the sleeve 7, so that potential safety hazards caused by the fact that the spring 6 is exposed outside can be effectively prevented.

6. The separation force adjustable separation mechanism according to claims 1, 3, 4, wherein: locking pin 8 mounting holes are formed in the push rod 5 and the sleeve 7, and after the push rod 5, the spring 6 and the locking nut 4 are mounted inside the sleeve 7, the locking pin 8 is inserted into the locking pin hole to be in a locking state, so that the fairing 2 is conveniently connected with the arrow body; measuring the elasticity of the spring 6 through a force measuring tool, and adjusting the depth of screwing the locking nut 4 into the sleeve 7 to enable the elasticity of the spring 6 to be within a required range; after the fairing 2 is installed on the arrow body, the locking pin 8 is pulled out through the operation opening 3 on the fairing 2, and the elasticity of the spring 6 is released, so that the spring acts on the arrow body through the push rod 5.