CN212604324U

CN212604324U - Folding float-crossing device and amphibious tracked vehicle

Info

Publication number: CN212604324U
Application number: CN202021982702.1U
Authority: CN
Inventors: 张祚炜; 李宏伟; 祝国荣; 张丽华; 孙力; 王森; 朱东正
Original assignee: Beijing North Vehicle Group Corp
Current assignee: Beijing North Vehicle Group Corp
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-02-26
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a folding float-crossing device and amphibious tracked vehicle, folding float-crossing device are including flexible and aerating device, lateral wall to and aerify the membrane and float the body structure under water. The inflatable membrane underwater floating body structure is arranged on the side wall, and the side wall is connected with the amphibious tracked vehicle body through a telescopic and inflating device; the underwater floating body structure of the inflatable membrane has water tightness and can form an inflatable space in water. The utility model discloses broken through the restriction of traditional amphibious vehicle of track to the aspect ratio, wrapped up the track through aerifing membrane submerged floating body structure, made it play the lamellar body effect under water of catamaran, can reduce wave-making resistance and shape resistance by a wide margin, improved amphibious tracked vehicle speed of traveling and seaworthiness on water by a wide margin.

Description

Folding float-crossing device and amphibious tracked vehicle

Technical Field

The utility model belongs to the technical field of tracked vehicle, concretely relates to folding float-ferry device and amphibious tracked vehicle that specially adapted tracked vehicle used.

Background

Compared with a yacht with the same tonnage, the existing amphibious tracked vehicle is mainly characterized in that the density is far higher than that of the yacht with the same tonnage, the length-width ratio is far lower than that of the yacht with the same tonnage, and even after hydrodynamic shaping, the appearance and the density of the amphibious tracked vehicle cannot be compared with those of the yacht. Compared with a pure land vehicle, the amphibious tracked vehicle has the greatest characteristic that the density is lower after air is filled in the vehicle in multiple modes, so that the vehicle body capable of floating on water is realized.

The catamaran is a common unconventional naval vessel structure, the sailing speed is generally 35-40 sections, the catamaran is formed by two large-length-width-ratio sheet bodies connected by deck bridges, the limitation of the traditional monohull vessel on the length-width ratio is broken through, and the wave making resistance is smaller than that of the monohull vessel with the same tonnage. On the basis that the crawler of the amphibious tracked vehicle is difficult to break away from the water surface, the crawler is wrapped through the foldable additional structure, so that the crawler plays a role of an underwater sheet body of the catamaran, large water resistance is avoided, and the water running speed and the seaworthiness of the amphibious tracked vehicle can be greatly improved.

The Tensairity beam can greatly improve the bearing capacity of the inflatable beam by adding the lower-chord flexible inhaul cable and the upper-chord rigid pressure rod to the low-pressure inflatable bag, effectively reduce the internal pressure of the inflatable beam and effectively relieve the contradiction among the inflation pressure, the membrane material strength and the beam bearing capacity in the inflatable structure. The tension-compression separation is realized under the stress condition of the inflatable beam structure, the self weight of the inflatable beam is lighter than that of a simple inflatable beam, the unfolding speed is higher, the folding volume is smaller, the bearing capacity is higher, and the inflatable beam is applied to a river-crossing boat bridge to a certain extent. According to the research of the national defense science and technology university, the asymmetrical spindle-shaped Tensaiity inflatable bridge section with the span of 8 meters and the interface radius of 0.5 meter can support an LD-50-grade crawler-type thin-shell vehicle, so that the Tensaiity bridge section is completely feasible as an amphibious thin-shell vehicle water buoyancy structure technically. The army light-weight modular trestle system has been put into use in 2009 to clearly demonstrate the use of collapsible Tensairity structural bridge sections on water. Based on the basis, the Tensairity structure bridge section is used for improving the underwater structure of the amphibious tracked vehicle, the shape resistance is reduced, and the purpose of realizing high-speed running of the amphibious tracked vehicle is completely feasible.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a folding float-crossing device and amphibious tracked vehicle to solve and how to overcome the technical problem that current amphibious tracked vehicle speed on water is low.

(II) technical scheme

In order to solve the technical problem, the utility model provides a folding floating and ferrying device, which comprises a telescopic and inflating device, a side wall and an underwater floating body structure of an inflating membrane; the underwater floating body structure of the inflatable membrane is arranged on the side wall, and the side wall is connected with the amphibious tracked vehicle body through a telescopic and inflating device; the underwater floating body structure of the inflatable membrane has water tightness and can form an inflatable space in water; after the amphibious tracked vehicle enters water, the side walls are lowered through the telescopic and inflating device to extend out of the side walls to the underwater, so that the underwater floating body structure of the inflated membrane in a compressed state is positioned below the tracked vehicle; flexible and aerating device open the back can aerify the submerged floating body structure of inflatable membrane for the inflatable membrane of the submerged floating body structure of inflatable membrane swells gradually, after the displacement and the shape stability of inflatable membrane, forms and aerifys the membrane structure, and amphibious tracked vehicle's automobile body gradually come-up under the support of the submerged floating body structure of inflatable membrane, and the surface of water is left to the automobile body after the membrane that aerifys expandes completely, and the track of vehicle is wrapped up by the submerged floating body structure of inflatable membrane simultaneously.

Furthermore, the underwater floating body structure of the inflatable membrane consists of a plurality of membrane structures consisting of a plurality of membrane sheets.

Further, a foldable skeleton structure is added inside the single membrane structure.

Further, the underwater floating body structure of the inflatable membrane adopts a Tensairity structural design.

In addition, the application also provides an amphibious tracked vehicle, which comprises the folding floating and crossing device.

(III) advantageous effects

Drawings

Fig. 1 is a schematic diagram of a land state of a folding float-crossing device according to an embodiment of the present invention: (a) a front view, (b) a side view, (c) a bottom view, (d) a perspective view;

fig. 2 is a schematic diagram of the water unfolding state of the folding float-crossing device in the embodiment of the utility model: a front view, (b) a side view, (c) a bottom view, and (d) a perspective view;

FIG. 3 is a side view of a folding float-ferry device according to an embodiment of the present invention;

FIG. 4 is a front view of the folding float-crossing device according to the embodiment of the present invention;

FIG. 5 is a top view of the folding float-ferry device according to an embodiment of the present invention;

fig. 6 is an isometric view of a folding float-ferry device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples.

The embodiment provides a folding floating device and an amphibious tracked vehicle, the structure and the use state of the folding floating device are shown in figures 1-6, the folding floating device adopts a compressible folding polymer membrane inflatable membrane structure and comprises a telescopic inflatable device 1, a side wall 2 and an inflatable membrane underwater floating body structure 3.

The inflatable membrane underwater floating body structure 3 is arranged on the side wall 2, and the side wall 2 is connected with the amphibious tracked vehicle body through the telescopic and inflating device 1. The inflatable membrane underwater floating body structure 3 has water tightness and can form an inflatable space in water. After the amphibious tracked vehicle enters water, the side wall 2 is lowered by the telescopic and inflating device 1, so that the side wall 2 extends out underwater, and the inflatable membrane underwater floating body structure 3 in a compressed state is located below the track. Flexible and aerating device 1 opens the back and can aerify aeration membrane underwater floating body structure 3 for aeration membrane underwater floating body structure 3's aeration membrane expands gradually, after the displacement and the shape stability of aeration membrane, just forms aeration membrane structure, amphibious tracked vehicle's automobile body can progressively come up under aeration membrane underwater floating body structure 3's the support, up to aeration membrane complete expansion back automobile body leave the surface of water, vehicle track is aerifyd membrane underwater floating body structure 3 parcel simultaneously. In the process, the vehicle body with the small length-width ratio is gradually and completely lifted out of the water surface, the travelling wave resistance of the underwater floating body structure 3 with the large length-width ratio is far smaller than that of the vehicle body with the small length-width ratio in the process of accelerating the travelling speed of the inflatable membrane, the accessory resistance is reduced at the same time after the vehicle track is lifted out of the water surface, and the travelling speed of the vehicle is accordingly accelerated.

The inflatable membrane underwater floating body structure 3 is composed of a plurality of membrane structures composed of a plurality of membranes, and a foldable framework structure can be added in a single membrane structure under necessary conditions to increase the strength of the underwater structure during high-speed running, so that serious deformation is prevented. In this embodiment, the underwater buoyant structure 3 of the inflatable membrane is designed by a Tensairity structure.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A folding floating device is characterized in that the folding floating device comprises a telescopic and inflating device, a side wall and an inflatable membrane underwater floating body structure; the underwater floating body structure of the inflatable membrane is arranged on the side wall, and the side wall is connected with the amphibious tracked vehicle body through a telescopic and inflating device; the underwater floating body structure of the inflatable membrane has water tightness and can form an inflatable space in water; after the amphibious tracked vehicle enters water, the side walls are lowered through the telescopic and inflating device to extend out of the side walls to the underwater, so that the underwater floating body structure of the inflated membrane in a compressed state is positioned below the tracked vehicle; flexible and aerating device open the back can aerify the submerged floating body structure of inflatable membrane for the inflatable membrane of the submerged floating body structure of inflatable membrane swells gradually, after the displacement and the shape stability of inflatable membrane, forms and aerifys the membrane structure, and amphibious tracked vehicle's automobile body gradually come-up under the support of the submerged floating body structure of inflatable membrane, and the surface of water is left to the automobile body after the membrane that aerifys expandes completely, and the track of vehicle is wrapped up by the submerged floating body structure of inflatable membrane simultaneously.

2. The folding float-ferry device of claim 1, wherein the inflatable membrane underwater buoyant structure is comprised of a plurality of membrane structures comprised of a plurality of membrane sheets.

3. The folding float-over apparatus of claim 2, wherein a collapsible skeletal structure is added to the interior of the single membrane structure.

4. The folding float-ferry device of claim 1, wherein the inflatable membrane underwater buoyant structure is designed with a Tensairity structure.

5. An amphibious tracked vehicle, comprising a folding ferry device according to any one of the preceding claims.