CN109263628B - Bow jet pipe device for improving low head and countersunk head of hovercraft - Google Patents
Bow jet pipe device for improving low head and countersunk head of hovercraft Download PDFInfo
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- CN109263628B CN109263628B CN201810869552.4A CN201810869552A CN109263628B CN 109263628 B CN109263628 B CN 109263628B CN 201810869552 A CN201810869552 A CN 201810869552A CN 109263628 B CN109263628 B CN 109263628B
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- hovercraft
- spray pipe
- bow
- movable device
- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60V—AIR-CUSHION VEHICLES
- B60V3/00—Land vehicles, waterborne vessels, or aircraft, adapted or modified to travel on air cushions
- B60V3/06—Waterborne vessels
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention belongs to the field of ships, and particularly relates to a bow nozzle device for improving the head lowering and the heading of a hovercraft. The device consists of a rotary spray pipe, a movable device, a fixed spray pipe and a hovercraft body lifted by all, wherein the movable device adjusts the working state of the hovercraft according to different navigation speeds by a control device system: when the hovercraft sails at a medium-low speed, the movable device is in a compressed state, and the bow jet pipe jets high-pressure gas to the periphery according to different operating requirements on the hovercraft; when the hovercraft sails at a high speed, the movable device is in a bent and stretched state, the nozzle of the bow spray pipe faces downwards, and high-pressure gas is sprayed out downwards, so that the phenomenon that the hovercraft is sunk in the head is improved.
Description
Technical Field
The invention belongs to the field of ships, and particularly relates to a bow nozzle device for improving the head lowering and the heading of a hovercraft.
Background
When the whole cushion hovercraft sails in a cushion state, the ship body is suspended on the driving surface, so that the ship body has extremely small friction force to obtain higher driving speed, the maneuverability is reduced while the rapidity is improved, the lateral wind resisting capability at high speed is poor, and the effect of the air rudder on the incoming flow at low speed is small. At present, hovercraft in English, American and other countries are all provided with a bow nozzle device to improve the maneuverability of the hovercraft, so as to solve the problems, but the bow nozzle can only rotate in a fixed plane to realize different maneuvering modes. When the hovercraft runs at a high speed, the phenomenon of head lowering and head burying is easy to occur, the structural damage and apron damage of the hovercraft are caused, the safety is reduced, the maneuverability of the general bow jet pipe can not be adjusted according to the phenomenon, and the running state of the hovercraft is improved.
Disclosure of Invention
The invention aims to provide a bow nozzle device for improving the head lowering and the heading of a hovercraft.
A bow nozzle device for improving the low head and the countersunk head of a hovercraft is composed of a rotary nozzle 1, a movable device 2, a fixed nozzle 3 and a hovercraft body 5 which is lifted completely, wherein the rotary nozzle 1, the movable device 2 and the fixed nozzle 3 form the bow nozzle device, the lower half part of the rotary nozzle 1 is a hollow circular pipe, the upper half part of the rotary nozzle 1 is a bent hollow circular pipe, namely, when the lower half section of the hollow circular pipe of the rotary spray pipe 1 is vertically arranged, the upper half section of the pipe orifice of the rotary spray pipe 1 faces to the upper oblique direction of the horizontal plane, the fixed spray pipe 3 is a hollow quadrangular conical pipe with an upper conical tip removed, the movable device 2 is cylindrical telescopic rubber, two end orifices of the movable device 2 are used for communicating the rotary spray pipe 1 with the fixed spray pipe 3, two sets of bow spray pipe devices are symmetrically arranged at two sides of the hull 5 of the cushion rising hovercraft and are connected with the hull 5 of the cushion rising hovercraft through the fixed spray pipe 3, wherein the active device 2 is adjusted in its operating state by the control device system in dependence on the hovercraft at different speeds.
When the hovercraft is sailing at a medium-low speed, the movable device 2 is in a compressed state, namely the rubber pipe of the movable device 2 is not extended and is in a completely compressed state, the hollow circular pipe at the lower half part of the rotary spray pipe 1 is vertical, the pipe orifice of the hollow bent pipe at the upper half part of the rotary spray pipe 1 faces to the upper oblique direction in the horizontal direction, and the rotary spray pipe 1 sprays high-pressure gas to the periphery according to different operation requirements on the hovercraft. When the hovercraft runs at a high speed, the movable device 2 is controlled by the control device system, the movable device 2 is bent and stretched by taking the ship length direction as the axial direction, the movable device 2 is in a bent and stretched state, the orifice of the rotary spray pipe 1 faces downwards, high-pressure gas is sprayed downwards, an angle value is formed between the axis of the rotary spray pipe 1 and a vertical line, and the angle value is adjusted through the control device system according to different speeds of the hovercraft. The left bow nozzle device and the right bow nozzle device are symmetrically arranged along the longitudinal direction of the hovercraft, and when the rotating nozzles 1 face downwards, the angle values between the rotating nozzles 1 of the two bow nozzle devices and a vertical line are equal.
The invention has the beneficial effects that:
the invention can increase the degree of freedom of the bow nozzle device and enable the bow nozzle to rotate along two axial directions while keeping the original functions of the hovercraft, thereby enabling the hovercraft to utilize the bow nozzle no matter in a low-speed state or a high-speed state, and further increasing the maneuverability and the safety of the hovercraft.
Drawings
Fig. 1(a) is a schematic view of the structure of the present invention in a low-speed standing state.
FIG. 1(b) is a schematic view of the structure of the present invention in a high-speed bending state.
Fig. 2(a) is a front view of the present invention in a low-speed standing state.
Fig. 2(b) is a front view of the present invention in a high speed bending state.
Fig. 3 is an overall arrangement working schematic of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A bow nozzle device for improving the head lowering and the head burying of a hovercraft. The angle between the bow nozzle device nozzle and the horizontal plane can be adjusted according to the condition that the whole hovercraft is at different sailing speeds, so that the head-lowering and head-burying phenomena of the hovercraft during high-speed running are improved, and the angle between the bow nozzle device nozzle and the horizontal plane is adjusted by a control device system during high-speed running of the whole hovercraft. The device comprises a rotary spray pipe, a movable device, a fixed spray pipe and other components, wherein the movable device is adjusted in working state by a control device system according to different navigation speed conditions of the hovercraft: when the hovercraft sails at a medium-low speed, the movable device is in a compressed state, and the bow jet pipe jets high-pressure gas to the periphery according to different operating requirements on the hovercraft; when the hovercraft sails at a high speed, the movable device is in a bent and stretched state, the nozzle of the bow spray pipe faces downwards, and high-pressure gas is sprayed downwards, so that the phenomenon that the hovercraft is lowered and buried at the head is improved, and the operability and the safety of the hovercraft are improved.
The invention provides a bow nozzle device for improving the head lowering and head burying of a hovercraft, which is a single-degree-of-freedom device that a bow nozzle used by the existing hovercraft can only rotate around a vertical shaft in a fixed horizontal plane. The bow jet pipe device can adjust the angle between the nozzle of the bow jet pipe and the horizontal plane, so that the bow jet pipe can not only spray high-pressure air along the peripheral direction under the conditions of medium and low speed to obtain air thrust and adjust the running direction of the whole hovercraft, but also can be adjusted by a control system to enable the nozzle to face the lateral lower part, thereby providing lift force for the bow of the hovercraft, improving the operating performance of the hovercraft and increasing the driving safety.
The technical scheme of the invention is as follows:
on the basis of a common bow spray pipe, a movable device is additionally arranged between the rotating body and the fixed spray pipe. When the hovercraft runs at a normal speed, the movable device is in a non-working (compression) state, and the bow jet pipe can circumferentially rotate as the conventional bow jet pipe device; when the hovercraft runs at high speed, the movable device is controlled by the control device system to bend and stretch in the direction of the ship length as the axial direction, so that the nozzle faces downwards and high-pressure air is sprayed out, thereby providing the force on the ship in the heading direction and improving the head-lowering and head-burying state of the hovercraft when the hovercraft runs at high speed.
The invention has the outstanding advantages that:
the invention can increase the degree of freedom of the bow nozzle device and enable the bow nozzle to rotate along two axial directions while keeping the original functions of the hovercraft, thereby enabling the hovercraft to utilize the bow nozzle no matter in a low-speed state or a high-speed state, and further increasing the maneuverability and the safety of the hovercraft.
The invention relates to a bow nozzle device for improving the low head and the countersunk head of an hovercraft, which is arranged on two sides of a ship board, and a control device system can adjust a movable device when the hovercraft navigates at high speed, so as to change the angle between a bow nozzle and the horizontal plane, and increase a degree of freedom on the basis of a general bow nozzle, and is characterized in that: the movable device controls the angle between the bow spray pipe nozzle and the horizontal plane through the control device system according to the hovercraft at different navigation speeds, so that the maneuverability of the hovercraft is improved, and the safety of the hovercraft is improved.
In the figure, 1 is a rotary spray pipe, 2 is a movable device, 3 is a fixed spray pipe, 4 is a certain angle value, and 5 is a hovercraft body lifted completely.
In fig. 1, a rotary nozzle 1 and a fixed nozzle 3 are connected together through a movable device 2, when the hovercraft is at low speed, the bow nozzle device is in an upright state, and the movable device is in a compressed state; when the hovercraft is at high speed, the movable device is controlled by the control device system and is in a bent and stretched state, and the nozzle of the fore spray pipe faces downwards.
In fig. 2, when the hovercraft is at high speed with the nozzle device nozzle down, the axis of the rotating nozzle 1 is at an angle 4 to the vertical, the magnitude of which can be adjusted by the control device system according to the hovercraft speed.
In fig. 3, the left and right bow nozzle devices are arranged symmetrically along the longitudinal direction of the hovercraft, and when the nozzles of the two bow nozzles face downwards, the same angle value 4 between the rotating nozzles 1 of the two bow nozzles and the vertical line is ensured to realize stress balance.
Claims (1)
1. The utility model provides an improve bow spray tube device of hovercraft bow countersunk head which characterized in that: the device comprises a rotary spray pipe (1), a movable device (2), a fixed spray pipe (3) and a full-lift hovercraft body (5), wherein the rotary spray pipe (1), the movable device (2) and the fixed spray pipe (3) form a bow spray pipe device, the lower half part of the rotary spray pipe (1) is a hollow round pipe, the upper half part of the rotary spray pipe (1) is a bent hollow round pipe, namely when the lower half part of the rotary spray pipe (1) is vertically arranged, the upper half pipe orifice of the rotary spray pipe (1) faces to the oblique upper side of a horizontal plane, the fixed spray pipe (3) is a hollow four-pyramid pipe with an upper pyramid tip removed, the movable device (2) is cylindrical telescopic rubber, two ports of the hull of the rotary spray pipe (1) and the fixed spray pipe (3) are communicated through the movable device (2), the two sets of bow spray pipe devices are symmetrically arranged on two sides of the full-lift hovercraft body (5) and are connected with the full-lift hovercraft body (, wherein the working state of the movable device (2) is adjusted by a control device system according to different navigation speed conditions of the hovercraft;
when the hovercraft is sailing at a medium-low speed, the movable device (2) is in a compressed state, namely the rubber tube of the movable device (2) is not extended and is in a completely compressed state, the hollow circular tube at the lower half part of the rotary spray tube (1) is upright, the orifice of the hollow elbow tube at the upper half part of the rotary spray tube (1) faces to the obliquely upper part in the horizontal direction, and the rotary spray tube (1) sprays high-pressure gas to the periphery according to different operating requirements on the hovercraft;
when the hovercraft runs at a high speed, the movable device (2) is controlled by the control device system, the movable device (2) is bent and stretched by taking the ship length direction as the axial direction, the movable device (2) is in a bent and stretched state, the orifice of the rotary spray pipe (1) faces downwards, high-pressure gas is sprayed out downwards, an angle value is formed between the axis of the rotary spray pipe (1) and a vertical line, and the size of the angle value is adjusted by the control device system according to the speed difference of the hovercraft;
the left bow nozzle device and the right bow nozzle device are symmetrically arranged along the longitudinal direction of the hovercraft, and when the nozzles of the rotary nozzles (1) face downwards, the angle values between the rotary nozzles (1) of the two bow nozzle devices and a vertical line are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869552.4A CN109263628B (en) | 2018-08-02 | 2018-08-02 | Bow jet pipe device for improving low head and countersunk head of hovercraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869552.4A CN109263628B (en) | 2018-08-02 | 2018-08-02 | Bow jet pipe device for improving low head and countersunk head of hovercraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109263628A CN109263628A (en) | 2019-01-25 |
| CN109263628B true CN109263628B (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810869552.4A Active CN109263628B (en) | 2018-08-02 | 2018-08-02 | Bow jet pipe device for improving low head and countersunk head of hovercraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109263628B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087543A (en) * | 1964-05-28 | 1967-10-18 | Hovercraft Dev Ltd | Improvements relating to gas-cushion vehicles |
| US5195602A (en) * | 1991-07-26 | 1993-03-23 | Weiland Carl W | Stabilized air cushion vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136111C (en) * | 2000-05-29 | 2004-01-28 | 范振汝 | Hovercraft |
| CN1363500A (en) * | 2002-02-05 | 2002-08-14 | 周勃 | Jet air-cushion ship with higher speed |
| CN202574208U (en) * | 2012-07-06 | 2012-12-05 | 上海飞浪气垫船有限公司 | Longitudinal balance control balanced rudder mechanism for air cushion vehicle |
| CN103552680B (en) * | 2013-11-12 | 2015-03-11 | 中交天津航道局有限公司 | Fan-shaped bow jet positioning and control method for trailing suction hopper dredger |
| CN103723239B (en) * | 2013-12-17 | 2016-03-09 | 哈尔滨工程大学 | Part air cushion supports shallow draft high-speed catamaran |
| CN105856994B (en) * | 2016-05-23 | 2018-04-17 | 中国船舶重工集团公司第七○二研究所 | Aero-propeller vessel oceangoing ship trim self-regulation device |
| CN106005394A (en) * | 2016-07-22 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Rescue aircraft |
| KR20180042473A (en) * | 2016-10-07 | 2018-04-26 | 강성광 | Air-Jet Propelled Ship has Hovercraft Function And The Composition Method |
-
2018
- 2018-08-02 CN CN201810869552.4A patent/CN109263628B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087543A (en) * | 1964-05-28 | 1967-10-18 | Hovercraft Dev Ltd | Improvements relating to gas-cushion vehicles |
| US5195602A (en) * | 1991-07-26 | 1993-03-23 | Weiland Carl W | Stabilized air cushion vehicle |
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| Publication number | Publication date |
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| CN109263628A (en) | 2019-01-25 |
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