Multi-rotor aerodynamic noise analysis device

Abstract

The utility model relates to the technical field of noise analysis equipment, in particular to a multi-rotor aerodynamic noise analysis device which comprises a device body, a detection sensor is arranged at the top of the device body, an access door is arranged on one side of the device body, and fixing plates are fixedly connected to the bottoms of the two sides of the device body. A connecting plate is arranged at the bottom of the device body, a mounting seat is arranged on the outer side of the connecting plate, mounting plates are fixedly mounted on the lower portions of the two sides of the mounting seat, a damping control assembly is arranged on one side of the mounting seat, and a matching groove is formed in the top of the mounting seat. By arranging the damping control assembly and the variable damping shock absorber, external vibration interference can be timely and effectively dealt with, the detection precision is remarkably improved, the adverse effect of vibration on the detection result is reduced, and the detection accuracy is improved. And the device keeps good flexibility and stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to noise analysis equipment technical field, concretely is a kind of multi-rotor aerodynamic noise analysis device. BACKGROUND

[0002] Multi-rotor aircraft is widely used in aerial photography, logistics distribution, agricultural plant protection and many other fields due to its flexible operation, vertical take-off and landing and other advantages, however, aerodynamic noise will be generated in the flight process of multi-rotor aircraft, these noises not only pollute the surrounding environment, affect people's normal life and work, but also may interfere with the communication and navigation system of the aircraft itself, pose a potential threat to flight safety, the traditional multi-rotor aerodynamic noise analysis device has many shortcomings, on the one hand, they perform poorly in stability, and cannot effectively cope with complex working environment, which makes it difficult to guarantee the accuracy of detection data, on the other hand, the shock absorption design is relatively backward, lacks intelligent shock absorption control means, and when subjected to external vibration interference, the detection precision will be seriously affected.

[0003] In view of the above problems, a multi-rotor aerodynamic noise analysis device needs to be provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of multi-rotor aerodynamic noise analysis device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of multi-rotor aerodynamic noise analysis device, including device main body, the detection sensor is arranged at the top of device main body, the maintenance door is arranged at one side of device main body, the fixed plate is fixedly connected at the bottom of both sides of device main body, the connecting plate is arranged at the bottom of device main body, the mounting seat is arranged at the outer side of connecting plate, the mounting plate is fixedly installed at the lower side of both sides of mounting seat, the shock absorption control assembly is arranged at one side of mounting seat, the matching groove is arranged at the top of mounting seat, the variable damping shock absorber is arranged at the bottom end inside matching groove and at the bottom of connecting plate, and the bottom pad is fixedly connected at the bottom of mounting seat and mounting plate.

[0007] As the preferred scheme of the utility model, the mounting hole is formed in the top of two mounting plates, and the first fixed bolt is arranged in the mounting hole.

[0008] As the preferred scheme of the utility model, the connecting plate is matched with device main body and two fixed plates, and the second fixed bolt is fixedly connected between two fixed plates and connecting plate.

[0009] As the preferred scheme of the utility model, the device main body, two fixed plates and connecting plate are matched with matching groove.

[0010] As the preferred scheme of the utility model, the shock control assembly includes the installation box fixedly installed on one side of the mounting seat through connecting screws, and the vibration sensor and the intelligent shock control are arranged in the installation box.

[0011] As the preferred scheme of the utility model, the variable damping shock absorber is provided with a plurality of variable damping shock absorbers which are arrayed between the bottom of the connecting plate and the matching groove.

[0012] As the preferred scheme of the utility model, the vibration sensor and the intelligent shock control are electrically connected, and the intelligent shock control and the variable damping shock absorber are electrically connected.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In view of the problems in the background art, the utility model sets the variable damping shock absorber and the shock control assembly in the multi-rotor aerodynamic noise analysis device, the vibration sensor monitors the vibration in real time, rapidly captures the vibration signal and transmits it to the intelligent shock control, the intelligent shock control accurately controls the variable damping shock absorber according to the monitoring data, realizes the intelligent shock absorption function, unlike the traditional backward shock absorption design, the intelligent control mode can timely and effectively cope with the external vibration interference, significantly improves the detection accuracy, reduces the adverse effects of vibration on the detection result, and makes the device maintain good flexibility and stability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall structure perspective drawing of the utility model;

[0016] Fig. 2 It is the internal structure schematic view of the utility model;

[0017] Fig. 3 It is the mounting seat structure schematic view of the utility model.

[0018] In the drawing: 1, device main body; 101, detection sensor; 102, access door; 103, fixed plate; 104, mounting seat; 105, bottom pad; 106, mounting plate; 107, first fixed bolt; 108, second fixed bolt; 109, matching groove; 110, connecting plate; 2, shock control assembly; 201, installation box; 202, vibration sensor; 203, intelligent shock control; 3, variable damping shock absorber. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of the present application.

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Several embodiments of the present application are given. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are for purposes of illustration only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments, and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Embodiments, please refer to Figs. 1-3 The present application provides a technical solution:

[0024] The utility model provides a kind of multi-rotor aerodynamic noise analysis device, including device main body 1, detection sensor 101 is provided at the top of device main body 1, maintenance door 102 is provided at the side of device main body 1, when the device needs to be maintained, overhaul or troubleshooting, open maintenance door, staff can observe, detect, repair or replacement operation to the component inside the device, greatly improve the convenience of device maintenance, shorten maintenance time, reduce maintenance cost, facilitate technician to find and solve the problem inside the device in time, extend the service life of device, guarantee the long-term stable operation of device, fixed plate 103 is fixedly connected at the bottom of both sides of device main body 1, connecting plate 110 is provided at the bottom of device main body 1, mounting seat 104 is provided outside connecting plate 110, mounting plate 106 is fixedly installed below the both sides of mounting seat 104, shock control assembly 2 is provided at the side of mounting seat 104, cooperation groove 109 is provided at the top of mounting seat 104, variable damping shock absorber 3 is provided at the bottom inside cooperation groove 109 and located connecting plate 110 bottom, bottom pad 105 is fixedly connected at the bottom of mounting seat 104 and mounting plate 106.

[0025] Specifically, shock control assembly 2 includes mounting box 201 fixedly installed at the side of mounting seat 104 by connecting screw, vibration sensor 202 and intelligent shock control 203 are provided inside mounting box 201, a plurality of variable damping shock absorbers 3 are provided, a plurality of variable damping shock absorbers 3 are arrayed between connecting plate 110 bottom and cooperation groove 109, vibration sensor 202 and intelligent shock control 203 are electrically connected, and intelligent shock control 203 and variable damping shock absorber 3 are electrically connected, vibration sensor monitors the vibration condition of the whole device in real time, converts the monitored vibration signal into electrical signal and transmits it to intelligent shock control, intelligent shock control analyzes and processes the received signal, sends control signal to variable damping shock absorber according to preset algorithm and threshold, adjusts the damping size of variable damping shock absorber, intelligent shock control assembly can respond to external vibration interference in real time and dynamically, avoid deviation of detection data caused by vibration, ensure that detection work is carried out in stable environment, effectively improve detection precision, and guarantee the accuracy of detection result.

[0026] Further, mounting holes are formed in the top of the two mounting plates 106, and first fixing bolts 107 are arranged in the mounting holes, find the appropriate installation position, align the mounting holes on the mounting plate with the corresponding fixed points, insert the first fixing bolts and tighten, so that the mounting seat is stably fixed in the position, realizing the preliminary fixation of the device and providing a stable foundation for subsequent installation of other components, the bottom pad plays a buffering and anti-skid role during installation, avoiding the sliding of the mounting seat or vibration damage caused by installation operation, and enhancing the stability of installation.

[0027] Further, the connecting plate 110 cooperates with the device body 1 and the two fixed plates 103, and the two fixed plates 103 are fixedly connected with the connecting plate 110 through the second fixing bolt 108, the connecting plate is aligned with the corresponding positions of the device body and the two fixed plates, then the second fixing bolt is screwed through the connecting holes of the fixed plate and the connecting plate, and the device body is firmly installed on the fixed mounting seat, so that the device body does not shake and displace in subsequent work, the structural stability of the whole device is ensured, structural support is provided for the accuracy of detection work, the device body 1, the two fixed plates 103 and the connecting plate 110 cooperate with the matching groove 109, after the device is installed and started, the detection sensor automatically starts to work, the sensing element thereof faces the operation area of the multi-rotor aircraft, and real-time capture of aerodynamic noise signals is realized, and the signals are converted into electrical signals or digital signals for transmission, so that the aerodynamic noise data generated by the multi-rotor aircraft is efficiently and accurately collected, and the most original and most critical data source is provided for multi-rotor aerodynamic noise analysis, and the high sensitivity and accuracy greatly improve the reliability of data analysis.

[0028] The working process of the utility model is as follows: when the multi-rotor aerodynamic noise analysis device is used, first, the mounting seat 104 is fixed in a suitable position by using the first fixing bolt 107 through the mounting hole on the mounting plate 106, the bottom pad 105 can play a buffering and anti-skid role, then the connecting plate 110 is connected with the device body 1 and the fixed plate 103 through the second fixing bolt 108, so that the device body 1 is stably installed, and the installation process of the whole device is completed, after the device is installed, the detection sensor 101 located at the top of the device body 1 starts to work, which can efficiently and accurately capture the aerodynamic noise data generated by the multi-rotor aircraft, and in the device operation process, the damping control assembly 2 works synchronously, the vibration sensor 202 monitors the vibration condition of the device in real time, and transmits the monitoring data to the intelligent damping controller 203, the intelligent damping controller 203 accurately controls the variable damping shock absorber 3 in the matching groove 109 according to the received data, timely and effectively responds to external vibration interference, ensures that the detection work is not affected by vibration, and the aerodynamic noise data collected by the detection sensor 101 is used for subsequent analysis, which provides a basis for multi-rotor aerodynamic noise research, and when the device needs to be maintained, the maintenance door 102 can be opened to check and maintain the inside of the device, which is convenient and fast.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multirotor aerodynamic noise analysis device comprising a device body (1), characterized in that: The device body (1) top is provided with detection sensor (101), the device body (1) one side is provided with access door (102), the device body (1) both sides bottom is fixedly connected with fixed plate (103), the device body (1) bottom is provided with connecting plate (110), the connecting plate (110) outside is provided with mounting seat (104), the mounting seat (104) both sides below are all fixedly installed mounting plate (106), the mounting seat (104) one side is provided with shock control assembly (2), the mounting seat (104) top is provided with cooperation slot (109), the cooperation slot (109) inside bottom end and located connecting plate (110) bottom is provided with variable damping shock absorber (3), the mounting seat (104) bottom and mounting plate (106) bottom are fixedly connected with bottom pad (105).

2. A multirotor aerodynamic noise analysis apparatus according to claim 1, characterized in that: Two the mounting plate (106) top are all seted up mounting hole, and the mounting hole is provided with first fixed bolt (107) inside.

3. The multirotor aerodynamic noise analysis apparatus according to claim 1, characterized by: The connecting plate (110) and device body (1) and two fixed plate (103) are mutually matched, and two the fixed plate (103) and connecting plate (110) are fixedly connected through second fixed bolt (108) between.

4. The multirotor aerodynamic noise analysis apparatus of claim 1, wherein: The device body (1), two fixed plate (103) and connecting plate (110) and cooperation slot (109) are mutually matched.

5. The multirotor aerodynamic noise analysis apparatus of claim 1, wherein: The shock control assembly (2) includes the installation box (201) of fixed mounting in the mounting seat (104) one side by connecting screw, the installation box (201) is provided with vibration sensor (202) and intelligent shock controller (203) inside.

6. The multirotor aerodynamic noise analysis apparatus of claim 1, wherein: The variable damping shock absorber (3) is provided with a plurality of, a plurality of variable damping shock absorber (3) is arrayed between connecting plate (110) bottom and cooperation slot (109).

7. The multirotor aerodynamic noise analysis apparatus according to claim 5, wherein: The vibration sensor (202) and intelligent shock controller (203) are electrically connected between, and the intelligent shock controller (203) and variable damping shock absorber (3) are electrically connected between.

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