CN203864991U - Balloon in-air releasing device enabling balloon to bear straightening impact - Google Patents

Abstract

The utility model relates to a balloon release device in the air that withstands the straightening impact, comprising an upper sling, a central sling, a sphere, and a lower sling; the upper sling and the lower sling are respectively connected to two ends of the external deployment release device; the central sling is in the form of a tearing belt , installed between the upper and lower end faces inside the sphere along the central axis of the sphere. During the straightening process of the balloon, the structural design of the central sling of the balloon is used to change the force transmission path of the balloon during the straightening process in the air, so as to avoid the impact on the skin of the balloon. At the same time, the tearing belt design is adopted on the central sling to reduce the relative speed between the upper cabin and the lower cabin during the straightening process of the balloon, thereby reducing the impact at the moment of straightening. The breakage of the balloon during the straightening process is avoided.

Description

A balloon release device in the air withstanding straightening impact

technical field

The utility model belongs to the technical field of aerostat design and relates to a balloon release device in the air which bears straightening impact.

Background technique

Conventional balloon inflation and release work is done slowly on the ground, and the sphere breaks after being subjected to the straightening impact. With the rapid development of aerostat technology, researchers have tried to launch the folded and packaged balloon to a designated altitude with a sounding rocket. During the fall of the sounding rocket, the balloon will be straightened through inter-stage separation and rapidly inflated. After the balloon is inflated, it is unlocked with the sounding rocket, and the balloon floats at the set height. The advantage of this method of straightening and inflating the balloon is that it does not have to rely on ground conditions, and the balloon can be launched to the predetermined airspace by sounding rockets to float, especially where the ground does not have the conditions to release the balloon.

Therefore, in order to realize the straightening and inflation of balloons in the air, many new methods have been proposed, such as using high-strength skin materials to make balloons, changing the force transmission path through balloon structure design, and so on. However, the method of using a high-strength skin material to make the balloon will cause the balloon's own mass to be too large. When the payload of the same mass is hung at the same height, the volume of the balloon is too large, and the actual use efficiency obtained is low.

Utility model content

The technical problem solved by the utility model is: to overcome the deficiencies of the prior art, to provide a balloon release device in the air that withstands the straightening impact, and adopts the internal sling buffer method to realize the bearing of the straightening impact by the balloon.

The technical scheme of the utility model is: a balloon release device in the air that withstands the straightening impact, including an upper sling, a central sling, a sphere, and a lower sling; The other end of the upper sling is fixedly installed outside the upper end surface of the sphere, and the other end of the lower sling is fixedly installed outside the lower end surface of the sphere; the central sling is installed on the upper and lower sides of the sphere along the central axis of the sphere in the form of a tearing belt. Between the lower end faces; the upper sling, the lower sling and the central sling are all made of aramid fiber material.

The beneficial effects of the utility model compared with the prior art are:

1. The utility model can change the stress form of the balloon, thereby eliminating the stress on the skin during the straightening process and ensuring that the skin is not damaged during the straightening process.

2. The utility model adopts the deceleration method of the tear belt structure, which greatly reduces the relative speed between the lower cabin and the upper cabin during the straightening process of the balloon, thereby reducing the impact at the moment of straightening.

3. Since the structure of the balloon bears impact through the central sling, the skin of the balloon is only used to withstand internal pressure and ensure airtight performance, so its skin density can be controlled within a relatively low range. Compared with the scheme in which the strength of the skin is greatly increased by directly bearing the impact through the skin, the overall mass of the balloon is much smaller. This advantage is particularly evident in the structural weight of large balloons.

4. Through this scheme design, the balloon can withstand the straightening impact, which provides a technical basis for the balloon to be straightened and inflated quickly in a folded and packaged state.

Description of drawings

Fig. 1 is the overall structural layout schematic diagram of the present invention;

Figure 2 is a schematic diagram of the structure of the tearing belt.

Detailed ways

Since the sounding rocket stages are separated at high altitude, the balloon needs to be straightened by the gravity of the lower cabin, and the distance of the free fall is equivalent to the diameter of the balloon. During this process, a certain relative velocity occurs between the lower cabin section and the upper cabin section. When the balloon is straightened, due to the effect of relative speed, a momentary impact is loaded on the balloon, which will directly cause damage to the balloon, making it impossible to complete the subsequent inflation and floating process. For this reason, special structural design is required so that the weak skin material will not be stressed.

As shown in Figure 1. The utility model device comprises an upper sling 1, a central sling 2, a sphere 3, and a lower sling 4; the upper sling 1 and the lower sling 2 are respectively connected to two ends of an external deployment release device, such as the upper cabin and the lower cabin of a sounding rocket The other end of the upper sling 1 is fixedly installed on the outside of the upper surface of the spheroid 3, and the other end of the lower sling 4 is fixedly installed on the outside of the lower surface of the spheroid 3; The central axis of the sphere 3 is installed between the upper and lower end faces inside the sphere 3; the upper sling 1, the lower sling 4 and the central sling 2 are all made of aramid fiber material.

Before release, the sphere 3 is placed in the lower section of the sounding rocket in a folded and packaged state, and the upper sling 1 and the lower sling 4 are respectively connected to the upper section and the lower section. The sling 4 transmits the impact to the lower end surface, the lower end surface transmits the impact to the central sling 2, the central sling 2 transmits the impact to the upper end surface, and the upper end surface transmits the impact to the upper sling 1. The whole process avoids the impact of the sphere 3 skin. In addition to the impact caused by the straightening process, the magnitude of the impact force is also related to the relative speed between the lower cabin and the upper cabin during straightening. The greater the relative speed, the greater the impact. In order to reduce the impact increase caused by excessive speed, the central sling 2 is designed with a tearing belt structure, as shown in FIG. 2 . The tearing force generated by the tearing belt continues to offset part or even all of the gravity during the whole process of straightening, reducing the resultant external force on the lower cabin, thereby reducing the relative speed at the moment of straightening.

The content that is not described in detail in the description of the utility model belongs to the known technology of those skilled in the art.

Claims (1)

1. the aerial release gear of balloon that bears deployment shock, is characterized in that: comprise suspender belt (1), central harness (2), spheroid (3), lower suspender belt (4); One end of one end of upper suspender belt (1) and lower suspender belt (4) is connected to respectively the two ends of external expansion release gear, the other end of upper suspender belt (1) is fixedly mounted on the outside, upper surface of spheroid (3), and the other end of lower suspender belt (4) is fixedly mounted on the outside, lower surface of spheroid (3); Central harness (2), with tear-strap form, is arranged between the inner upper and lower end face of spheroid (3) along the axis of spheroid (3); Described upper suspender belt (1), lower suspender belt (4) and central harness (2) all adopt aramid fiber material.