A powder smoke generating device and a smoke generating drone

Abstract

A powder smoke generating device comprises a strip-shaped powder cabin, a spiral pushing mechanism and at least one air pressure regulating pipeline; the strip-shaped powder cabin has two ends, a first end is provided with a powder inlet opening, and a second end is provided with a powder discharge opening; wherein the powder discharge opening is provided with a suction pipe, one end of the suction pipe is inserted into the inside of the powder cabin through the powder discharge opening, and the other end of the suction pipe has an interface connected to a turbojet engine; the spiral pushing mechanism and the air pressure regulating pipeline are arranged inside the powder cabin, and the spiral pushing mechanism is laterally connected to the two ends of the powder cabin; the air pressure regulating pipeline is located at the powder discharge opening, wherein one end of the air pressure regulating pipeline is provided with an opening for regulating air pressure, and a plurality of sensors are provided at relative positions of the openings for regulating air pressure, and the internal pressure of the powder cabin is regulated by controlling the sensors, so that the powder inside the powder cabin can produce smoke quickly and evenly.

Description

Technical Field

[0001] The present application relates to the technical field of smoke-generating equipment, and in particular to a powder smoke-generating device and a smoke-generating drone. Background Art

[0002] With the rapid development of modern science and technology, the transparency of modern battlefields is getting higher and higher, and the transition from offense to defense is very fast, which makes concealment on modern battlefields more difficult. In order to better hide their actions on the battlefield, combatants need to use smoke drones. The smoke system of smoke drones can be used for interference and camouflage on the battlefield, which can help combatants quickly hide. Therefore, smoke drones have become one of the important combat equipment on the modern battlefield.

[0003] At present, whether the smoke system of a smoke-generating drone can produce a large amount of smoke depends on its powder smoke device, which is one of the most important links. Only when the powder in the powder smoke device can pass through the powder smoke device in a timely and fast manner and enter the turbine of the smoke-generating drone can a large amount of smoke be produced. Therefore, the powder smoke device is very important for smoke-generating drones. However, the powder smoke device in the existing smoke-generating drone does not push the powder inside evenly and quickly. Some of the powder will be blocked or pushed slowly, which will cause the smoke of the smoke-generating drone to fail to meet the needs of the modern battlefield in a timely manner.

[0004] Therefore, it is necessary to design a powder smoke-generating device that can evenly and quickly push powder into the turbine of a smoke-generating UAV to meet the needs of modern battlefields for smoke-generating UAVs. Summary of the invention

[0005] The present application provides a powder smoke generating device to solve the problem that the powder smoke generating device in the existing smoke generating drone pushes the powder unevenly and pushes the powder relatively slowly. The present application also provides a smoke generating drone including the powder smoke generating device.

[0006] The embodiment of the present application provides a powder smoke generating device, comprising a strip-shaped powder cabin, a spiral pushing mechanism and at least one air pressure regulating pipeline;

[0007] The powder cabin has two ends, the first end is provided with a powder inlet opening, and the second end is provided with a powder discharge opening; wherein the powder discharge opening is provided with a suction tube, one end of the suction tube is inserted into the powder cabin through the powder discharge opening, and the other end of the suction tube has an interface connected to the turbojet engine;

[0008] The spiral pushing mechanism and the air pressure regulating pipeline are arranged inside the powder cabin, and the spiral pushing mechanism is transversely connected to the two ends of the powder cabin;

[0009] The air pressure regulating pipeline is located at the powder discharge opening, wherein an opening for regulating air pressure is provided at one end of the air pressure regulating pipeline, and a plurality of sensors are provided at positions relative to the opening for regulating air pressure, and the internal pressure of the powder cabin is regulated by controlling the sensors.

[0010] Optionally, it further includes a speed controller, wherein the speed controller includes a flow ratio controller, a position integral controller, a calibration differential controller and a target reference device;

[0011] The rotation speed controller controls the rotation speed of the spiral pushing mechanism, and controls the powder concentration in the powder smoking device by adjusting the rotation speed.

[0012] Optionally, it further includes an intake valve, wherein the intake valve is provided with a first opening and closing angle;

[0013] The first opening and closing angle of the intake valve is determined by one, two, three or four of the parameters of the rotation speed of the screw pushing mechanism, the value of the position sensor, the atmospheric pressure deviation and the initial position of the intake valve;

[0014] The amount of air entering the powder cabin is controlled by adjusting the first opening and closing angle of the air inlet valve.

[0015] Optionally, the system further comprises a flow valve, wherein the flow valve is provided with a second opening and closing angle;

[0016] The second opening and closing angle of the flow valve is determined by one, two or three of the parameters of the rotation speed of the spiral pushing mechanism, the concentration deviation and the initial position of the flow valve.

[0017] Optionally, both ends of the air pressure regulating pipeline are connected to the powder cabin;

[0018] The air pressure regulating pipeline has openings at both ends, the opening at the first end is circular, and the opening at the second end is elliptical, and the opening at the first end and the opening at the second end of the air pressure regulating pipeline are connected by a cylinder.

[0019] Optionally, the spiral pushing mechanism is a rotating shaft with rotating blades evenly arranged on the circumferential surface of the shaft, wherein the angle between the rotating blades and the rotating shaft surface is an adjustable angle.

[0020] Optionally, the angle between the rotating blade and the surface of the rotating shaft is adjusted according to the air intake volume inside the powder cabin.

[0021] Optionally, a motor is further included, wherein the motor is arranged at the first end of the powder cabin and connected to the rotating shaft.

[0022] An embodiment of the present application provides a smoke-generating drone, comprising the above-mentioned powder smoke-generating device, wherein the smoke-generating drone has a bracket for fixing the powder smoke-generating device, a turbojet engine is mounted on the bracket and is connected to the suction pipe.

[0023] Compared with the prior art, this application has the following advantages:

[0024] The present application provides a powder smoke generating device, comprising a strip-shaped powder cabin, a spiral pushing mechanism and at least one air pressure regulating pipeline; the powder cabin has two ends, the first end is provided with a powder inlet opening, and the second end is provided with a powder discharge opening; wherein the powder discharge opening is provided with a suction pipe, one end of the suction pipe is inserted into the interior of the powder cabin through the powder discharge opening, and the other end of the suction pipe has an interface connected to a turbojet engine; the spiral pushing mechanism and the air pressure regulating pipeline are arranged inside the powder cabin, and the spiral pushing mechanism is transversely connected to the two ends of the powder cabin; the air pressure regulating pipeline is located at the powder discharge opening, wherein one end of the air pressure regulating pipeline is provided with an opening for regulating air pressure, and a plurality of sensors are provided at positions relative to the opening for regulating air pressure, and the internal pressure of the powder cabin is regulated by controlling the sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a powder smoke generating device provided in an embodiment of the present application (front view);

[0026] Figure 2 A schematic diagram (top view) of the structure of a powder smoke generating device provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the structure of a long strip powder cabin provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of the spiral pushing mechanism provided in the embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of a powder smoke generating device provided in an embodiment of the present application (sensors are evenly arranged);

[0030] Figure 6 This is a schematic diagram of the structure of a powder smoke generating device provided in an embodiment of the present application (sensors are unevenly arranged).

[0031] Reference numerals:

[0032] 10: Long strip powder cabin;

[0033] 101: first end portion; 1011: powder inlet opening;

[0034] 102: second end; 1021: powder discharge opening; 1021-1: suction tube;

[0035] 20: spiral push mechanism; 201: rotating shaft; 202: rotating blade;

[0036] 30: air pressure regulating pipeline; 301: first port; 302: second port;

[0037] 40: sensor;

[0038] 50: Motor. DETAILED DESCRIPTION

[0039] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0040] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the related art, the powder smoke generating device is one of the important components in the smoke system of the smoke-generating UAV. The powder smoke generating device can directly affect whether the smoke system of the smoke-generating UAV can produce a large amount of smoke. However, the powder smoke generating device of the current smoke-generating UAV pushes the powder relatively slowly and unevenly, which further causes the smoke generated by its smoke system to fail to meet the needs of modern warfare. In view of this, the present application provides a powder smoke generating device, comprising a long strip of powder cabin, a spiral pushing mechanism and at least one air pressure regulating pipeline; the powder cabin has two ends, the first end is provided with a powder inlet opening, and the second end is provided with a powder discharge opening; wherein the powder discharge opening is provided with a suction pipe, one end of the suction pipe is inserted into the interior of the powder cabin through the powder discharge opening, and the other end of the suction pipe has an interface for connecting to a turbojet engine; the spiral pushing mechanism and the air pressure regulating pipeline are arranged inside the powder cabin, and the spiral pushing mechanism is transversely connected to the two ends of the powder cabin; the air pressure regulating pipeline is located at the powder discharge opening, wherein one end of the air pressure regulating pipeline is provided with an opening for regulating air pressure, and a plurality of sensors are provided at relative positions of the opening for regulating air pressure, and the internal pressure of the powder cabin is regulated by controlling the sensors.

[0045] In other words, by controlling multiple sensors, the weight of the powder inside the powder cabin is detected by the sensors, and then the angle between the rotating blades and the surface of the rotating shaft is adjusted according to the weight of the powder in the powder cabin, so that the powder in the powder cabin can produce smoke quickly and evenly.

[0046] The implementation methods of the present application are introduced below in conjunction with the accompanying drawings. Those skilled in the art should understand that the following implementation methods are only illustrative and not an exhaustive list. Based on these implementation methods, those skilled in the art may replace, splice or combine certain features or examples, which should still be regarded as the disclosed contents of the present application.

[0047] Figure 1 This is a schematic diagram (front view) of the structure of a powder smoke generating device provided in an embodiment of the present application. Figure 2This is a structural schematic diagram (attached view) of a powder smoke generating device provided in an embodiment of the present application. The powder smoke generating device includes a long strip powder cabin 10, a spiral pushing mechanism 20 and at least one air pressure regulating pipeline 30.

[0048] like Figure 3 The figure is a schematic diagram of the structure of the long strip powder cabin. Figure 1 and Figure 3 As shown, the strip-shaped powder cabin body 10 has two ends, a first end 101 is provided with a powder inlet opening 1011 , and a second end 102 is provided with a powder discharge opening 1021 .

[0049] Specifically, the powder feeding opening 1011 is arranged on the end plate of the outer shell of the first end 101 of the elongated powder cabin body 10, and the powder discharging opening 1021 is arranged on the end plate of the outer shell of the second end 102 of the elongated powder cabin body 10. In the embodiment of the present application, the powder feeding opening 1011 and the motor 50 are arranged at the same port of the outer shell end plate of the elongated powder cabin body 10, that is, the powder feeding opening 1011 and the motor 50 are both arranged on the end plate of the outer shell of the first end 101 of the elongated powder cabin body 10. This arrangement is to ensure that the overall structure of the elongated powder cabin body 10 is more compact, but it does not exclude that the powder feeding opening 1011 and the motor 50 are arranged at different ports of the outer shell of the elongated powder cabin body 10. The specific arrangement can be determined according to the actual situation of the elongated powder cabin body 10.

[0050] The powder discharge opening 1021 is arranged at a relative position of the powder inlet opening 1011, specifically arranged at the second end 102 of the outer shell end plate of the long strip powder cabin body 10, and a suction pipe 1021-1 is arranged at the powder discharge opening 1021, and the powder discharge opening 1021 is connected to one end of the suction pipe 1021-1, and one end of the suction pipe 1021-1 is inserted into the inside of the powder cabin body 10 through the powder discharge opening 1021, and the other end of the suction pipe 1021-1 has an interface connected to a turbojet engine (not shown). The suction pipe 1021-1 is arranged at the powder discharge opening 1021 to better discharge the powder inside the long strip powder cabin body 10 evenly and quickly, and to prevent a large amount of powder from clogging at the powder discharge opening 1021, thereby affecting the output of smoke.

[0051] Specifically, Figure 1As shown, the structure of the suction pipe 1021-1 is roughly "7"-shaped, and one end of the suction pipe 1021-1 enters the interior of the long strip powder cabin 10 through the powder discharge opening 1021. One end of the suction pipe 1021-1 inside the long strip powder cabin 10 is set to an elliptical structure, which is to increase the amount of powder entering the suction pipe 1021-1, so as to increase the speed of powder discharge from the long strip powder cabin 10. The other end of the suction pipe 1021-1 is an interface connected to the turbojet engine. In the embodiment of the present application, the shape of the interface of the suction pipe 1021-1 connected to the turbine engine is circular, but other structures are not excluded, as long as the structure of the interface can match the turbine engine.

[0052] That is to say, the powder in the elongated powder cabin 10 can be uniformly and quickly transported to the turbine engine through the suction pipe 1021 - 1 .

[0053] The above-mentioned powder inlet opening 1011 and powder discharge opening 1021 are respectively arranged on the end plates of the two end shells of the elongated powder cabin body 10; at the same time, the spiral pushing mechanism 20 and the air pressure regulating pipeline 30 are arranged inside the elongated powder cabin body 10, and the spiral pushing mechanism 20 is horizontally connected to the two ends of the elongated powder cabin body 10.

[0054] Specifically, the spiral pushing mechanism 20 is transversely connected to the inside of the long strip powder cabin body 10, and is arranged along the transverse extension direction of the long strip powder cabin body 10. In the embodiment of the present application, the structure of the spiral pushing mechanism 20 is a round rod-shaped shaft, and both ends of the shaft are connected to the inside of the outer shell end plate of the long strip powder cabin body 10, and the shaft can rotate inside the long strip powder cabin body 10.

[0055] Among them, Figure 4 As shown, the spiral pushing mechanism 20 is a rotating shaft 201 with rotating blades 202 evenly arranged on the circumferential relative surfaces of the shaft. During the rotation of the rotating shaft 201, the rotating blades 202 arranged thereon can be driven to rotate. During the rotation of the rotating blades 202 driven by the rotating shaft 201, the powder inside the elongated powder chamber 10 can be driven to continuously move evenly and quickly toward the position of the powder discharge opening 1021, so as to enable the powder inside the elongated powder chamber 10 to quickly and evenly enter the turbine engine through the powder discharge opening 1021, so as to prepare in advance for the subsequent generation of a large amount of smoke.

[0056] The angle between the rotating blade 202 and the surface of the rotating shaft 201 is not fixed, that is, the angle between the rotating blade 202 and the surface of the rotating shaft 201 can be adjusted, specifically, according to the air intake volume in the long strip powder cabin 10.

[0057] That is to say, when the amount of air intake into the elongated powder chamber 10 is different, it will directly affect the size of the angle between the rotating blade 202 and the surface of the rotating shaft 201. When the air intake continues to increase, the angle between the rotating blade 202 and the surface of the rotating shaft 201 will also increase. However, when the air intake reaches a certain amount, the angle between the rotating blade 202 and the surface of the rotating shaft 201 will also reach a maximum value. The amount of air intake is adjusted according to the requirement of the smoke emission.

[0058] The spiral pushing mechanism 20 is connected to the inside of the long strip powder cabin 10 through the above connection. In addition to the spiral pushing mechanism 20 , the air pressure regulating pipeline 30 is also connected to the inside of the long strip powder cabin.

[0059] like Figure 1 As shown, the air pressure regulating pipeline 30 is located at the bottom powder discharge opening 1021 of the elongated powder cabin body 10. Specifically, the air pressure regulating pipeline 30 is vertically connected to the inside of the elongated powder cabin body 10, that is, the air pressure regulating pipeline 30 and the spiral pushing mechanism 20 are perpendicular to each other.

[0060] Specifically, both ends of the air pressure regulating pipeline 30 are connected to the long strip powder cabin 10; the connection method can be a clamping or bolting connection, that is, the air pressure regulating pipeline 30 is fixed to the long strip powder cabin 10. Both ends of the air pressure regulating pipeline 30 have openings, the opening 301 at the first end is circular, and the opening 301 at the first end is close to the powder discharge opening 1021. The opening 302 at the second end is elliptical, and the opening 302 at the second end is close to the bottom of the long strip powder cabin 10, that is, the opening 302 at the second end is relatively close to the powder inside the long strip powder cabin 10, and setting its opening into an elliptical structure can increase its contact area; and the opening 301 at the first end and the opening 302 at the second end of the air pressure regulating pipeline 30 are connected by a cylinder.

[0061] Among them, an opening for regulating air pressure is provided at one end of the air pressure regulating pipeline 30, and a plurality of sensors 40 are provided at positions opposite to the opening for regulating air pressure, and the pressure inside the long strip powder cabin 10 can be regulated by controlling the sensors 40. In the embodiment of the present application, the sensor can be any one of a gravity sensor and a pressure sensor, or both a gravity sensor and a pressure sensor, and the specific selection can be determined according to the actual situation.

[0062] Specifically, the plurality of sensors 40 may be arranged evenly or unevenly.

[0063] The first case (uniform setting): Figure 5 As shown, a plurality of sensors 40 can be evenly arranged at the bottom of the long strip powder cabin body 10; the size of the air pressure opening can be further adjusted by detecting the gravity or pressure or the gravity and pressure of the powder at the bottom of the long strip powder cabin body 10.

[0064] The second case (uneven setting): Figure 6 As shown, multiple sensors 40 can be unevenly arranged at the bottom of the elongated powder cabin body 10; for such uneven arrangement, they can be arranged according to the weight of the powder at different positions on the bottom of the elongated powder cabin body 10. For example, according to general circumstances, when the powder just enters the elongated powder cabin body 10, its speed is relatively fast. Therefore, the weight of the powder at the front end of the elongated powder cabin body 10 is relatively light, and the intervals between sensors can be relatively large when setting the sensors, that is, the number of sensors 40 arranged at the front end of the elongated powder cabin body 10 is relatively small; when the powder is continuously transported to the rear end of the elongated powder cabin body 10, its speed will slow down. Therefore, the weight of the powder at the rear end of the elongated powder cabin body 10 is relatively heavy. When the sensors 40 are arranged, the intervals between sensors can be relatively small, that is, the number of sensors 40 arranged at the rear end of the elongated powder cabin body 10 is relatively large.

[0065] In the embodiment of the present application, whether the multiple sensors 40 are arranged uniformly or non-uniformly can be selected according to specific actual working conditions.

[0066] The above is a description of the connection and working principle of the air pressure regulating pipeline 30 inside the long strip powder cabin 10 , and the rotation speed control of the spiral pushing mechanism 20 will be described next.

[0067] The speed control of the spiral pushing mechanism 20 is one of the keys to achieve powder concentration control. In the embodiment of the present application, a stable and mature PID (proportion-integral-differential) controller is used for control. Currently, the PID control technology is very mature, and its principle will not be explained in the embodiment of the present application.

[0068] The powder smoke generating device further comprises a rotation speed controller. In the embodiment of the present application, the rotation speed controller controls the rotation speed of the spiral pushing mechanism, and the powder concentration in the powder smoke generating device is controlled by the rotation speed of the spiral pushing mechanism.

[0069] In the embodiment of the present application, the speed control is performed by PID control, that is, the PID speed controller includes a flow proportion controller, a position integral controller, a calibrated differential controller and a target reference device.

[0070] The function expression of the speed PID is as follows:

[0071] V1=P(a)+I(b)+D(c)+C1;

[0072] The above function reflects the mapping relationship between V1 and P(a), I(b), D(c), and C1 parameters. The explanations of the parameters in the above function are as follows:

[0073] V1 is the rotation speed of the spiral pushing mechanism;

[0074] a is the flow sensor; P(a) is the flow ratio controller;

[0075] b is the first position sensor; I(b) is the first position integral controller;

[0076] c is the observed and analyzed concentration deviation; D(c) is the observed and analyzed concentration deviation differential controller;

[0077] C1 is the initial target speed determined by experiment.

[0078] The powder smoke generating device further comprises an air intake valve and a flow valve. In the embodiment of the present application, the air intake valve and the flow valve are also controlled by independent PID control.

[0079] The intake valve is provided with a first opening and closing angle, and the first opening and closing angle of the intake valve is determined by one, two, three or four of the rotation speed of the spiral pushing mechanism, the value of the position sensor, the atmospheric pressure deviation and the parameters of the initial position of the intake valve.

[0080] The function expression of the intake valve PID is as follows:

[0081] V2=P(v)+I(d)+D(p)+C2;

[0082] The above function reflects the mapping relationship between V2 and P(v), I(d), D(p), and C2 parameters. The explanations of each parameter in the above function are as follows:

[0083] V2 is the first opening and closing angle of the intake valve;

[0084] v is the speed of the spiral pushing mechanism; P(v) is the speed proportional controller;

[0085] d is the second position sensor; I(d) is the second position integral controller;

[0086] p is the atmospheric pressure (altitude) deviation; D(p) atmospheric pressure (altitude) deviation differential controller;

[0087] C2 is the initial position of the intake valve determined by experiment.

[0088] The amount of air entering the long strip powder cabin body is controlled by adjusting the first opening and closing angle of the air inlet valve.

[0089] The flow valve is provided with a second opening and closing angle; the second opening and closing angle of the flow valve is determined by one, two or three of the parameters of the rotation speed of the spiral pushing mechanism, the concentration deviation and the initial position of the flow valve.

[0090] For simplicity, the flow valve control adopts the proportional controller and the integral controller, so the function expression of the flow valve is as follows:

[0091] V3=P(v)+I(c)+C3;

[0092] The above function reflects the mapping relationship between V3 and P(v), I(c), and C3 parameters. The explanations of the parameters in the above function are as follows:

[0093] V3 is the second opening and closing angle of the flow valve;

[0094] v is the speed of the spiral pushing mechanism; P(v) is the speed proportional controller;

[0095] c Observed analytical concentration deviation; I(c) Observed analytical concentration deviation integral controller;

[0096] C3 is the initial position of the flow valve determined by experiment.

[0097] That is to say, the powder concentration in the powder smoking device is controlled by adopting PID control on the rotation speed of the spiral pushing mechanism, the air inlet valve and the flow valve.

[0098] In the embodiment of the present application, V1 is the rotation speed of the spiral push mechanism, V2 is the first opening and closing angle of the intake valve, and V3 is the second opening and closing angle of the flow rate. V1, V2, and V3 are controlled independently, but V1, V2, and V3 can be adjusted simultaneously. The initial values ​​of V1, V2, and V3 are set as follows: initial V1 = 0.5 cycles / second, initial V2 = 0.5 / 30°, and initial V3 = 0.5 / 30° (sin30 = 0.5).

[0099] In the embodiment of the present application, the value ranges of V1, V2, and V3 are V1 [0-1], V2 [0-1], and V3 [0-1]; wherein V1 is calculated based on the amount of material fed by the spiral pushing mechanism in one rotation, and is the speed range; V2 and V3 are sin values, and the corresponding range values ​​are 0-90°.

[0100] The power of the powder smoke generating device comes from the motor 50. It has been explained in the above process that the motor 50 is arranged at the same end of the powder inlet opening 1011 of the elongated powder chamber body 10, that is, the motor 50 and the powder inlet opening 1011 are both arranged at the first end of the elongated powder chamber body 10. At the same time, the motor 50 is connected to the rotating shaft 201 through the end plate of the outer shell of the elongated powder chamber body 10, that is, the rotation of the motor 50 drives the rotating shaft 201 to rotate.

[0101] The powder smoke generating device provided by the present application comprises a long strip powder cabin body 10, a spiral pushing mechanism 20 and at least one air pressure regulating pipeline 30; the long strip powder cabin body 10 has two ends, the first end 101 is provided with a powder inlet opening 1011, and the second end 102 is provided with a powder discharge opening 1021; wherein the powder discharge opening 1021 is provided with a suction pipe 1021-1, one end of the suction pipe 1021-1 is inserted into the powder cabin body 10 through the powder discharge opening 1021, and the other end of the suction pipe 1021-1 has an interface connected to the turbojet engine; the spiral pushing mechanism 20 is provided with a powder inlet opening 1011, and the second end 102 is provided with a powder discharge opening 1021; wherein the powder discharge opening 1021 is provided with a suction pipe 1021-1, one end of the suction pipe 1021-1 is inserted into the powder cabin body 10 through the powder discharge opening 1021, and the other end of the suction pipe 1021-1 has an interface connected to the turbojet engine; The delivery mechanism 20 and the air pressure regulating pipeline 30 are arranged inside the long strip powder cabin body 10, and the spiral pushing mechanism 20 is horizontally connected to the two ends of the long strip powder cabin body 10; the air pressure regulating pipeline 30 is located at the powder discharge opening 1021, wherein an opening for adjusting the air pressure is provided at one end of the air pressure regulating pipeline 30, and a plurality of sensors 40 are provided at the opposite position of the opening for adjusting the air pressure, and the controller 40 is controlled to adjust the internal pressure of the long strip powder cabin body 10, so that the powder in the long strip powder cabin body 10 can produce smoke quickly and evenly.

[0102] Another embodiment of the present application provides a smoke-generating drone, which includes the above-mentioned powder smoke-generating device. The smoke-generating drone has a bracket for fixing the powder smoke-generating device, and a turbojet engine is installed on the bracket, which is connected to the suction pipe 1021-1.

[0103] The smoke-generating drone includes the powder smoke-generating device, so no further explanation is given here. The specific structure and connection method thereof can refer to the powder smoke-generating device.

[0104] Although the present application is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

Claims

1. A powder smoke generating device, characterized in that: include: A long strip powder cabin, a spiral pushing mechanism and at least one air pressure regulating pipeline; The powder cabin has two ends, the first end is provided with a powder inlet opening, and the second end is provided with a powder discharge opening; wherein the powder discharge opening is provided with a suction tube, one end of the suction tube is inserted into the powder cabin through the powder discharge opening, and the other end of the suction tube has an interface connected to the turbojet engine; The spiral pushing mechanism and the air pressure regulating pipeline are arranged inside the powder cabin, and the spiral pushing mechanism is transversely connected to the two ends of the powder cabin; the spiral pushing mechanism is a rotating shaft with rotating blades evenly arranged on the circumferential surface of the shaft, wherein the angle between the rotating blades and the rotating shaft surface is an adjustable angle, and the adjustment of the angle between the rotating blades and the rotating shaft surface is adjusted according to the internal air intake volume of the powder cabin; The air pressure regulating pipeline is located at the powder discharge opening, the air pressure regulating pipeline is vertically connected to the inside of the powder cabin, and is in a perpendicular state to the spiral pushing mechanism, wherein the second end of the air pressure regulating pipeline is provided with an opening for regulating air pressure, and a plurality of sensors are provided at positions relative to the opening for regulating air pressure, and the internal pressure of the powder cabin is regulated by controlling the sensors; It also includes an air intake valve, wherein the air intake valve is provided with a first opening and closing angle; the amount of air entering the powder cabin body is controlled by adjusting the first opening and closing angle of the air intake valve; Both ends of the air pressure regulating pipeline are connected to the powder cabin; both ends of the air pressure regulating pipeline have openings, the opening at the first end is circular, the opening at the second end is elliptical, and the opening at the first end and the opening at the second end of the air pressure regulating pipeline are connected by a cylinder.

2. A powder smoke generating device according to claim 1, characterized in that: Also included is a speed controller, which includes a flow ratio controller, a position integral controller, a calibration differential controller, and a target reference device; The rotation speed controller controls the rotation speed of the spiral pushing mechanism, and controls the powder concentration in the powder smoking device by adjusting the rotation speed.

3. A powder smoke generating device according to claim 1, characterized in that: The first opening and closing angle of the intake valve is determined by one, two, three or four of the rotation speed of the screw push mechanism, the value of the position sensor, the atmospheric pressure deviation and the parameters of the initial position of the intake valve.

4. A powder smoke generating device according to claim 1, characterized in that: Also included is a flow valve, wherein the flow valve is provided with a second opening and closing angle; The second opening and closing angle of the flow valve is determined by one, two or three of the parameters of the rotation speed of the spiral pushing mechanism, the concentration deviation and the initial position of the flow valve.

5. A powder smoke generating device according to claim 1, characterized in that: It also includes a motor, wherein the motor is arranged at the first end of the powder cabin and connected to the rotating shaft.

6. A smoke-generating drone, characterized in that: It comprises the powder smoke generating device according to any one of claims 1 to 5, wherein the smoke generating drone has a bracket for fixing the powder smoke generating device, a turbojet engine is mounted on the bracket and is connected to the suction pipe.

Images