CN114165470B - A Vortex Ring Exciter Based on Alternate Drainage - Google Patents

Abstract

The invention discloses a vortex ring exciter based on alternate drainage, comprising a drainage device, a drainage driving device and a drainage plate driving device. The output flow channel and the tapered spout are arranged on the drainage plate in sequence, the inlet end side of the drainage channel is provided with a drainage plate, a sliding channel is arranged on the drainage plate, the drainage plate is arranged on the sliding channel, and the drainage plate driving device is connected with the drainage plate. The drainage driving device is connected with the drainage plate, the drainage driving device drives the drainage channel to rotate through the drainage plate, and the drainage plate driving device drives the drainage plate to move back and forth along the slideway, so that the drainage plate opens or closes the inlet end of the drainage channel. The present invention avoids the problem of airflow blockage in the flow channel from the source, greatly reduces the length and dimension of the device, and has a very simple mechanical structure, so it has wider application scenarios.

Description

A Vortex Ring Exciter Based on Alternate Drainage

technical field

The invention relates to the technical field of fluid mechanics, in particular to a vortex ring exciter based on alternating drainage.

Background technique

In the existing vortex ring generating devices, most of the airflow is provided by a fan, and then cut off by a mechanical structure. However, such a design limits the overall length of the device, and because the fan will continuously generate airflow, while the vortex ring is generated intermittently, during the process of mechanical truncation, the airflow will be blocked in the flow channel, thus affecting the generation of the vortex ring. the quality of. In order to adapt to more application scenarios and solve the problem of gas blockage in the flow channel, it is urgent to design a vortex ring exciter that integrates airflow generation and truncation.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a vortex ring exciter based on alternate drainage in view of the above-mentioned defects in the prior art, which avoids the problem of airflow blockage in the flow channel from the source, and greatly reduces the length of the device. size, and the mechanical structure is very simple, so it has a wider application scene.

The technical scheme adopted by the present invention for solving the above-mentioned technical problems is:

A vortex ring exciter based on alternating drainage, comprising a drainage device, a drainage driving device and a drainage plate driving device, the drainage device comprises a drainage plate, a drainage channel, an air output channel and a tapered spout, the drainage channel, the air output channel and the The tapered spouts are arranged on the drainage plate in sequence, a drainage plate is arranged on one side of the inlet end of the drainage channel, a slideway is arranged on the drainage plate, the drainage plate is arranged on the sliding channel, the drainage plate driving device is connected with the drainage plate, and the drainage driving device is connected with the drainage plate. The drainage plate is connected, the drainage driving device drives the drainage channel to rotate through the drainage plate, and the drainage plate driving device drives the drainage plate to move back and forth along the slideway, so that the drainage plate opens or closes the inlet end of the drainage channel.

According to the above technical solution, the drainage channel includes a plurality of drainage chambers distributed on the drainage plate at uniform intervals along the circumferential direction, the outlet end of the drainage chamber is communicated with the inlet end of the air output channel, and one side of each drainage chamber is provided with There are slideways, a plurality of slideways are evenly distributed on the drainage plate along the circumferential direction, the number of the drainage plates is multiple, the drainage plates are arranged in a one-to-one correspondence with the drainage chambers, and are arranged on the corresponding slideways, and the driving devices of the drainage plates are respectively Connected with a plurality of drainage plates, the drainage plate driving device drives the plurality of drainage plates to move back and forth along the corresponding slideways respectively, so that the drainage plates open or close the inlet ends of the corresponding drainage chambers.

According to the above technical solution, the cross section of the drainage chamber is fan-shaped, and one side of the drainage chamber is open as the inlet end of the drainage chamber.

According to the above technical solution, the inlet end of the drainage chamber is arranged on the windward side of the drainage chamber, and the outlet end of the drainage chamber is arranged on the top of the drainage chamber.

According to the above technical solution, the drainage plate and the slideway are both arc-shaped, and the inner concave surface of the arc-shaped drainage plate is the windward surface. When the inlet of the drainage chamber is closed, the drainage plate is attached to the side of the drainage chamber to block the drainage chamber. the import side.

According to the above technical solution, the air output flow channel is cylindrical.

According to the above technical solution, the number of drainage chambers is 3-5.

According to the above technical solution, the extension lines of each slideway meet at the center point of the drainage plate.

According to the above technical solution, the guide plate driving device comprises a guide plate drive plate and a guide plate drive motor, the output end of the guide plate drive motor is connected with the guide plate drive plate, and the center of the guide plate drive plate is evenly distributed along the circumferential direction on the guide plate drive plate There are a plurality of arc-shaped tracks, the bottom of the drainage plate is provided with a pin shaft, and the pin shaft passes through the drainage plate and is arranged on the arc-shaped track of the corresponding drainage plate driving plate; the drainage plate driving motor drives the drainage plate driving plate to rotate forward and reverse, driving the The drainage plate moves back and forth along the slide;

The arc-shaped track and the slideway are arranged in a one-to-one correspondence, and the curvature radius of the arc-shaped track is smaller than that of the slideway.

According to the above technical solution, the drainage drive device includes a drainage plate drive motor base and a disc drive motor, the disc drive motor is arranged on the drainage plate drive motor base, and the output end of the disc drive motor is connected to the drainage disc.

The present invention has the following beneficial effects:

The invention avoids the problem of air flow blockage in the flow channel from the source by giving up the use of the axial flow fan to generate the air flow, and pioneeringly uses the drainage technology to complete the introduction of the air flow and the interception of the air flow through the regular periodic back and forth movement of the drainage plate; The airflow generation device and the airflow cutoff device are integrated, and the guide plate not only undertakes the work of introducing the airflow, but also undertakes the work of cutting off the airflow, which greatly reduces the length and size of the device, and the mechanical structure is very simple, so it has a wider range. application scenarios.

Description of drawings

1 is an exploded schematic diagram of a vortex ring exciter based on alternate drainage in an embodiment of the present invention;

2 is a schematic structural diagram of a vortex ring exciter based on alternate drainage in an embodiment of the present invention;

Fig. 3 is the perspective view of the drainage tray in the embodiment of the present invention;

Fig. 4 is the front view of the drainage tray in the embodiment of the present invention;

Fig. 5 is the A-direction view of Fig. 3;

Fig. 6 is the C-C sectional view of Fig. 4;

7 is a schematic structural diagram of a drain plate drive plate in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a drainage plate in an embodiment of the present invention;

Fig. 9 is the connection schematic diagram of the drainage plate and the drainage plate in the embodiment of the present invention;

Fig. 10 is the K view of Fig. 9;

In the figure, 1 - tapered spout, 2 - drainage plate, 3 - drainage plate, 4 - drainage plate drive plate, 5 - drainage plate drive motor, 6 - drainage plate drive motor seat, 7 - disk drive motor.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIGS. 1 to 10 , a vortex ring exciter based on alternate drainage in an embodiment provided by the present invention includes a drainage device, a drainage driving device and a drainage plate driving device, and the drainage device includes a drainage disc 2 , a drainage The channel, the air output channel and the tapered spout 1, the drainage channel, the air output channel and the tapered nozzle 1 are arranged on the drainage plate 2 in turn, and a drainage plate 3 is arranged on the inlet end of the drainage channel, and the drainage plate 2 is provided with a drainage plate 3. There is a slideway, the drainage plate 3 is arranged on the slideway, the drainage plate driving device is connected with the drainage plate 3, the drainage driving device is connected with the drainage plate 2, the drainage driving device drives the drainage channel to rotate through the drainage plate 2, and the drainage plate driving device drives the drainage plate. 3. Move back and forth along the slideway to make the drainage plate 3 open or close the inlet end of the drainage channel; realize the opening or closing of the inlet end of the drainage channel.

Further, the drainage channel is arranged on the drainage plate 2, the outlet end of the drainage channel is connected with the inlet end of the air output channel, and the tapered nozzle 1 is arranged at the outlet end of the air output channel.

Further, the drainage channel includes a plurality of semi-open drainage chambers distributed on the drainage plate at uniform intervals along the circumferential direction, the outlet end of the drainage chamber is communicated with the inlet end of the air output channel, and one side of each drainage chamber is There are slideways, and a plurality of slideways are evenly distributed on the drainage plate 2 along the circumferential direction, and the number of the drainage plates 3 is multiple. The plate driving device is respectively connected with a plurality of drainage plates 3, and the drainage plate driving device drives the plurality of drainage plates 3 to move back and forth along the corresponding slides respectively, so that the drainage plates 3 open or close the inlet ends of the corresponding drainage chambers; The opening or closing of the inlet end of the chamber.

Further, the plurality of drainage chambers are circumferentially distributed with the axis of the air output channel as the center, and are arranged within the projection range of the air output channel.

Further, the cross section of the drainage chamber is fan-shaped, and one side of the drainage chamber is open, serving as the inlet end of the drainage chamber.

Further, the inlet end of the drainage chamber is arranged on the windward side of the drainage chamber, and the outlet end of the drainage chamber is arranged on the top of the drainage chamber.

Further, the drainage plate 3 and the slideway are both arc-shaped, and the inner concave surface of the arc-shaped drainage plate 3 is the windward surface. When the inlet of the drainage chamber is closed, the drainage plate 3 is attached to the side of the drainage chamber to block the drainage chamber. the inlet side of the chamber.

Further, the air output flow channel is cylindrical.

Further, the number of drainage chambers is 3-5.

Further, the optimal number of drainage chambers is 4; there are five parts distributed on the drainage plate 2, which are four semi-open drainage chambers and a cylindrical air output channel, and four drainage chambers. It is evenly distributed in the circumferential direction on the drainage plate 2, the cylindrical air output channel is located in the center of the drainage plate 2, and the tapered nozzle 1 is installed above the cylindrical air channel.

Further, the extension lines of the inner ends of the slideways meet at the center point of the drainage plate 2 .

Further, the drainage plate driving device includes a drainage plate driving plate 4 and a drainage plate driving motor 5, the drainage plate driving plate 4 is closely arranged below the drainage plate 2, and the output end of the drainage plate driving motor 5 is connected to the output end of the drainage plate driving plate 4. The center is connected, and a plurality of arc-shaped tracks are evenly distributed along the circumferential direction with the center of the guide plate drive plate 4 on the guide plate drive plate. The bottom of the guide plate 3 is provided with a pin shaft, and the pin shaft passes through the guide plate 2 and is arranged on the corresponding guide plate drive plate. 4 on the arc-shaped track; the drainage plate drive motor 5 drives the drainage plate drive plate 4 to rotate in the forward and reverse directions, driving the drainage plate 3 to move back and forth along the slide; the arc-shaped track and the The bending direction of the track is opposite, the radius of curvature of the arc track is smaller than that of the slide track, and the starting and ending points of the arc track and the slide track can coincide during movement.

Further, the radius of curvature of the arc-shaped track is half the radius of curvature of the slide.

Further, the drainage drive device comprises a drainage plate drive motor base 6 and a disc drive motor 7, the disc drive motor 7 is arranged on the drainage plate drive motor base 6, and the output end of the disc drive motor 7 is connected with the drainage plate 2; The drainage plate 2 rotates.

Further, the drain plate drive motor base 6 is arranged on the inner circle of the disc drive motor 7, the drain plate drive device is arranged on the inner circle of the drain plate drive motor base 6, and the drain plate drive motor base 6 and the disc drive motor 7 are both annular.

When the guide plate 3 moves outward, and through its own rotation, the external gas is introduced into the guide chamber, and the central flow channel gathers to form an airflow column. When the drainage plate 3 moves inward, the drainage plate 3 itself closes the drainage channel, and the external airflow cannot enter the drainage chamber, thereby forming a cut-off effect; the present invention abandons the air supply device that can continuously supply air, and uses a special The integrated drainage device can meet the working requirements of generating and cutting off the airflow at the same time, thereby forming a vortex ring. Because the device adopts an integrated drainage device, the length of the overall device is very short. Compared with the vortex ring generated by other methods, the device has a wider application scene, and its structure is also very simple.

The working principle of the present invention: Referring to the figure, a vortex ring exciter based on alternating drainage provided by the present invention. In the initial state, the drainage plate 2 is driven by the disk-type drive motor 7 as a whole, and in the working state, it has been rotating in one direction. The diversion plate 3 is located on the slide rail of the diversion plate 2. In the initial state, the lower protrusion of the diversion plate 3 is at the innermost side of the slide rail. At the next moment, the drainage plate driving motor 5 drives the drainage plate driving plate 4 to move forward, and the drainage plate driving plate 4 then drives the drainage plate 3 to move outward. The guide plate 3 is driven to move outward along the slide rail of the drive plate 2 . At the next moment, the drainage channel on the drainage plate gradually opens when the drainage plate 3 moves outward. At this moment, the external airflow enters the drainage chamber under the rotation of the drainage plate, and gathers in the central channel to form an airflow. column. At the next moment, the drainage plate driving motor 5 drives the drainage plate driving plate 4 to reverse, and the drainage plate driving plate 4 then drives the drainage plate 3 to move inward. At this time, the drainage plate 3 returns to the initial position, the drainage chamber is in a closed state, and the airflow column is cut off at this time. Taking this as a movement cycle, the pulse vortex ring is continuously generated. The pulse vortex ring generated by this generation method can effectively prevent the gas in the air supply duct from being blocked, and the overall size of the device is small, which is easy to install. The mechanical structure is simple and the reliability is high.

The above are only the preferred embodiments of the present invention, of course, the scope of the rights of the present invention cannot be limited by this, so the equivalent changes made according to the scope of the patent application of the present invention still belong to the protection scope of the present invention.

Claims (8)

1. A vortex ring exciter based on alternative drainage is characterized by comprising a drainage device, a drainage driving device and a drainage plate driving device, wherein the drainage device comprises a drainage disc, a drainage channel, an air output flow channel and a gradually-reduced nozzle;

the drainage channel comprises a plurality of drainage chambers which are uniformly distributed at intervals along the circumferential direction, the outlet ends of the drainage chambers are communicated with the inlet ends of the air output runners, one side of each drainage chamber is provided with a slide way, the slide ways are uniformly distributed on the drainage disc along the circumferential direction, the number of the drainage plates is multiple, the drainage plates and the drainage chambers are arranged in a one-to-one correspondence manner and are arranged on the corresponding slide ways, a drainage plate driving device is respectively connected with the drainage plates, and the drainage plate driving device drives the drainage plates to respectively move back and forth along the corresponding slide ways, so that the drainage plates open or close the inlet ends of the corresponding drainage chambers;

the drainage plate and the slide way are both arc-shaped, the inner concave surface of the arc-shaped drainage plate is a windward surface, and when the inlet of the drainage cavity is closed, the drainage plate is attached to the side surface of the drainage cavity to shield the inlet end of the drainage cavity.

2. The alternating flow guide-based scroll ring actuator according to claim 1, wherein the cross-section of the flow guide chamber is a fan shape, and one side of the flow guide chamber is open as an inlet end of the flow guide chamber.

3. The alternating flow guide based vortex ring exciter of claim 2, wherein the inlet end of the flow guide chamber is arranged at the windward side of the flow guide chamber and the outlet end of the flow guide chamber is arranged at the top of the flow guide chamber.

4. The alternating flow guide-based vortex ring actuator according to claim 1 wherein the air output flow channel is cylindrical.

5. The alternating flow guide-based vortex ring exciter according to claim 1, wherein the number of flow guide chambers is 3-5.

6. The alternating flow guide-based vortex ring actuator according to claim 1 wherein extensions of the ramps meet at a center point of the flow guide plate.

7. The alternating drainage based scroll ring exciter according to claim 1, wherein the drainage plate driving device comprises a drainage plate driving disc and a drainage plate driving motor, the output end of the drainage plate driving motor is connected with the drainage plate driving disc, a plurality of arc-shaped tracks are uniformly distributed on the drainage plate driving disc along the circumferential direction, the bottom of the drainage plate is provided with a pin shaft, and the pin shaft penetrates through a slide way of the drainage plate and is arranged on the arc-shaped track of the corresponding drainage plate driving disc; the drainage plate driving motor drives the drainage plate driving disc to rotate forward and backward to drive the drainage plate to move back and forth along the slide way;

the arc-shaped rails and the slideways are arranged in a one-to-one corresponding and crossed manner, and the curvature radius of the arc-shaped rails is smaller than that of the slideways.

8. The alternating-flow-guide-based vortex ring exciter according to claim 1, wherein the flow guide driving device comprises a flow guide plate driving motor base and a disk type driving motor, the disk type driving motor is arranged on the flow guide plate driving motor base, and an output end of the disk type driving motor is connected with the flow guide disk.

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