A damping holder for unmanned aerial vehicle inspection of railway

Abstract

The utility model relates to the technical field of damping holder, and disclose a kind of damping holder for railway unmanned aerial vehicle inspection, including holder body, the top of holder body is fixedly installed with damping cover, the inner bottom of damping cover is fixedly installed with connecting disc one, the top of connecting disc one is provided with spring, another end of spring is fixedly installed with connecting disc two, the bottom of connecting disc two is fixedly installed with steel guide shaft, the top of connecting disc two is provided with damping boss. Through the cooperation of damping cover and spring and steel guide shaft, the spring is sleeved on the outer edge of steel guide shaft, the damping cover is sleeved on the outer edge of spring, so that the damping cover, spring and steel guide shaft are nested with each other, and the coaxial effect is achieved. Furthermore, the setting of steel guide shaft can prevent the pain point of spring deviation, so that the high-frequency vibration is first absorbed by the spring, and then the low-frequency vibration is dissipated by the damping cover.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction gimbal technology, specifically a vibration reduction gimbal for railway drone inspection. Background Technology

[0002] The essence of railway inspection is to conduct periodic or continuous inspections, monitoring and maintenance of railway infrastructure (such as tracks, overhead contact lines, signaling equipment, etc.) with the aim of timely detection of potential defects, assessment of equipment status and prevention of accidents. Now, due to the widespread use of drone technology, it is also being applied to railway inspection, thereby reducing the use of manual labor and improving the efficiency of inspection.

[0003] Existing vibration-damping gimbal equipment used for railway drone inspection suffers from several drawbacks. Firstly, the passing of trains and vibrations from the drone's own motors can cause blurry or unclear videos and photos captured by the gimbal camera, resulting in poor inspection efficiency. Secondly, the traditional installation method of using vibration-damping components separate from the drone's body leads to amplified vibrations due to misalignment, affecting subsequent camera capture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vibration-damping gimbal for railway drone inspection, which has the advantages of improving inspection efficiency and reducing vibration, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a vibration-damping gimbal for railway drone inspection, comprising a gimbal body, a vibration-damping sleeve fixedly installed on the top of the gimbal body, a connecting plate one fixedly installed on the inner bottom of the vibration-damping sleeve, a spring provided on the top of the connecting plate one, a connecting plate two fixedly installed on the other end of the spring, a steel guide shaft fixedly installed on the bottom of the connecting plate two, a vibration-damping boss provided on the top of the connecting plate two, a flange fixedly installed on the top of the vibration-damping boss, a positioning groove provided on the upper surface of the flange, a threaded groove penetrating the inner wall of the flange, a positioning pin and a bolt respectively provided on the inner walls of the threaded groove and the positioning groove, and a base inserted into the top of the positioning pin.

[0006] As a preferred technical solution of this utility model: the threaded groove and the positioning groove are respectively formed on the upper surface and the lower surface of the flange and the base, the positioning pin is respectively inserted into the upper surface of the flange and the lower surface of the base, and the bolt is respectively threaded to the inner wall of the flange and the lower surface of the base.

[0007] As a preferred technical solution of this utility model: the threaded groove and positioning groove on the lower surface of the base correspond to the threaded groove and positioning groove on the upper surface of the flange, and the positioning pin is made of brass.

[0008] As a preferred technical solution of this utility model: the base is fixedly mounted on the top of the industrial drone body, and the number of the vibration damping bosses corresponds to the number of vibration damping sleeves, springs and steel guide shafts.

[0009] As a preferred technical solution of this utility model: the vibration damping boss is fixedly installed on the lower surface of the flange, and the vibration damping boss is made of fluororubber.

[0010] As a preferred technical solution of this utility model: the vibration damping sleeve is prepared by a copolymer of butadiene and acrylonitrile, and the number of vibration damping sleeves is several.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This vibration-damping gimbal for railway drone inspection utilizes a combination of a vibration-damping sleeve, a spring, and a steel guide shaft. The spring is fitted onto the outer edge of the steel guide shaft, and the vibration-damping sleeve is fitted onto the outer edge of the spring, creating a nested effect where the vibration-damping sleeve, spring, and steel guide shaft are concentric and coaxial. The steel guide shaft prevents spring misalignment, ensuring that high-frequency vibrations are first absorbed by the spring, and then low-frequency vibrations are dissipated by the vibration-damping sleeve. The spring acts as a primary vibration absorber, while the vibration-damping sleeve acts as a secondary vibration dissipator. This addresses the issue of high- and low-frequency vibrations generated in railway inspection scenarios, such as those from the drone's own motor operation, propeller airflow disturbances, or passing trains, which can transmit vibrations to the camera at the bottom of the gimbal, causing high-frequency shaking and unclear images.

[0013] 2. This vibration-damping gimbal for railway drone inspection utilizes a combination of vibration-damping bosses, a base, and locating pins. By inserting locating pins into the locating grooves on the upper and lower surfaces of the flange and base, respectively, the gimbal body and the industrial drone body can achieve precise docking. Subsequently, bolts are threaded from the bottom of the flange into the threaded grooves on the inner wall of the flange and the lower surface of the base, thus rigidly connecting and fixing the flange and base. This avoids the problem of amplified installation errors caused by the separate assembly of vibration-damping components and body connectors in traditional gimbal installations, which amplifies vibration and leads to cumulative installation errors. Furthermore, the vibration-damping boss further enhances vibration damping, eliminating the need for additional vibration-damping pads and directly absorbing vibrations from the mounting surface. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0016] Figure 3 This is a schematic diagram of the base structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the flange structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the vibration damping sleeve structure of this utility model.

[0019] In the diagram: 1. Gimbal body; 2. Industrial UAV body; 3. Vibration damping sleeve; 4. Connecting plate one; 5. Flange; 6. Connecting plate two; 7. Spring; 8. Steel guide shaft; 9. Threaded groove; 10. Positioning groove; 11. Base; 12. Vibration damping boss; 13. Positioning pin; 14. Bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 A vibration-damping gimbal for railway drone inspection includes a gimbal body 1. A vibration-damping sleeve 3 is fixedly installed on the top of the gimbal body 1. A connecting plate 4 is fixedly installed on the inner bottom of the vibration-damping sleeve 3. A spring 7 is provided on the top of the connecting plate 4. A connecting plate 6 is fixedly installed on the other end of the spring 7. A steel guide shaft 8 is fixedly installed on the bottom of the connecting plate 6. A vibration-damping boss 12 is provided on the top of the connecting plate 6. A flange 5 is fixedly installed on the top of the vibration-damping boss 12. A positioning groove 10 is opened on the upper surface of the flange 5. A threaded groove 9 runs through the inner wall of the flange 5. A positioning pin 13 and a bolt 14 are respectively provided on the inner walls of the threaded groove 9 and the positioning groove 10. A base 11 is inserted into the top of the positioning pin 13.

[0022] In the above structure, the vibration damping sleeve 3, spring 7, and steel guide shaft 8 work together. Spring 7 is sleeved on the outer edge of steel guide shaft 8, and vibration damping sleeve 3 is sleeved on the outer edge of spring 7. This allows vibration damping sleeve 3, spring 7, and steel guide shaft 8 to nest together, achieving concentricity and coaxiality. The steel guide shaft 8 prevents spring 7 from shifting, ensuring that high-frequency vibrations are first absorbed by spring 7 and then dissipated by vibration damping sleeve 3. Spring 7 acts as a primary vibration absorber, while vibration damping sleeve 3 acts as a secondary vibration dissipator. This solves the problem of high- and low-frequency vibrations caused by the operation of the motor of the industrial drone body 2, propeller airflow disturbance, or the passage of external trains in railway inspection scenarios. These vibrations are transmitted to the camera at the bottom of the gimbal body 1, causing high-frequency shaking in the image and resulting in unclear shooting.

[0023] In a preferred embodiment: threaded groove 9 and positioning groove 10 are respectively formed on the upper and lower surfaces of flange 5 and base 11, positioning pin 13 is respectively inserted into the upper surface of flange 5 and lower surface of base 11, and bolt 14 is respectively threaded to the inner wall of flange 5 and lower surface of base 11.

[0024] In the above structure, the vibration damping boss 12, the base 11, and the positioning pin 13 work together. By utilizing the threaded grooves 9 and positioning grooves 10 respectively opened on the upper and lower surfaces of the flange 5 and the base 11, and by inserting the positioning pin 13 into the positioning grooves 10 on the upper and lower surfaces of the flange 5 and the base 11, the gimbal body 1 and the industrial drone body 2 can be precisely docked. Then, by threading the bolt 14 from the bottom of the flange 5 into the threaded grooves 9 on the inner wall of the flange 5 and the lower surface of the base 11, the flange 5 and the base 11 can be rigidly connected and fixed. This avoids the problem of amplified vibration caused by the separate assembly of the "vibration damping component" and the "body connector" during traditional gimbal installation, which leads to the superposition of installation errors. Furthermore, the vibration damping boss 12 can further improve the vibration cancellation, thus eliminating the need for additional vibration damping pads and directly absorbing the vibration of the mounting surface.

[0025] In a preferred embodiment: the threaded groove 9 and the positioning groove 10 on the lower surface of the base 11 correspond to the threaded groove 9 and the positioning groove 10 on the upper surface of the flange 5, and the positioning pin 13 is made of brass.

[0026] In the above structure, the positioning pin 13, made of brass, is adapted to the high-precision installation and outdoor reliability scenarios of railway drone inspection by taking advantage of the characteristics and functional requirements of brass.

[0027] In a preferred embodiment: the industrial drone body 2 is fixedly mounted on the top of the base 11, and the number of vibration damping bosses 12 corresponds to the number of vibration damping sleeves 3, springs 7 and steel guide shafts 8.

[0028] In the above structure, the number of damping bosses 12 corresponds to the damping sleeve 3, spring 7, and steel guide shaft 8, which can further improve the damping performance and achieve a synergistic effect.

[0029] In a preferred embodiment, the vibration damping boss 12 is fixedly installed on the lower surface of the flange 5, and the vibration damping boss 12 is made of fluororubber.

[0030] In the above structure, the high and low temperature resistance, aging and weather resistance, and low compression set of fluororubber can avoid the detachment problem caused by traditional glue bonding, so that the vibration damping boss 12 and the surface of the flange 5 can form a strong chemical bond.

[0031] In a preferred embodiment, the vibration damping sleeve 3 is prepared by a copolymer of butadiene and acrylonitrile, and the number of vibration damping sleeves 3 is several.

[0032] In the above structure, butadiene provides elasticity, and acrylonitrile's oil resistance and strength are utilized, thereby enabling the vibration damping sleeve 3 to achieve both elasticity and weather resistance.

[0033] Working Principle: When this device is needed, it is first used in conjunction with the damping sleeve 3, spring 7, and steel guide shaft 8. Spring 7 is sleeved on the outer edge of the steel guide shaft 8, and the damping sleeve 3 is sleeved on the outer edge of spring 7, so that the damping sleeve 3, spring 7, and steel guide shaft 8 are nested together, achieving concentricity and coaxiality. Furthermore, the steel guide shaft 8 prevents spring 7 from shifting, allowing high-frequency vibrations to be absorbed by spring 7 first, and then low-frequency vibrations to be dissipated by damping sleeve 3. Spring 7 acts as a primary vibration absorber, while damping sleeve 3 acts as a secondary vibration dissipator. This solves the problem in railway inspection scenarios where the superposition of high and low frequency vibrations caused by the operation of the industrial drone's own motor, propeller airflow disturbance, or the passage of external trains leads to vibrations transmitted to the camera at the bottom of the gimbal body 1, causing high-frequency shaking in the image and resulting in unclear footage. By utilizing the vibration damping boss 12, the base 11, and the positioning pin 13, and by using the threaded grooves 9 and positioning grooves 10 respectively opened on the upper and lower surfaces of the flange 5 and the base 11, the positioning pin 13 can be inserted into the positioning grooves 10 on the upper and lower surfaces of the flange 5 and the base 11, thereby enabling precise docking between the gimbal body 1 and the industrial drone body 2. Subsequently, by threading the bolt 14 from the bottom of the flange 5 into the threaded grooves 9 on the inner wall of the flange 5 and the lower surface of the base 11, the flange 5 and the base 11 can be rigidly connected and fixed. This avoids the problem of vibration damping components being assembled separately from the body connecting parts during traditional gimbal installation, which amplifies the installation coaxiality error and causes the installation error to accumulate. Furthermore, the vibration damping boss 12 can further improve the vibration cancellation, thus eliminating the need for additional vibration damping pads and directly absorbing the vibration of the mounting surface.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration-damping gimbal for railway unmanned aerial vehicle (UAV) inspection, comprising a gimbal body (1), characterized in that: A damping sleeve (3) is fixedly installed on the top of the gimbal body (1). A connecting plate (4) is fixedly installed on the bottom of the inner side of the damping sleeve (3). A spring (7) is provided on the top of the connecting plate (4). A connecting plate (6) is fixedly installed on the other end of the spring (7). A steel guide shaft (8) is fixedly installed on the bottom of the connecting plate (6). A damping boss (12) is provided on the top of the connecting plate (6). A flange (5) is fixedly installed on the top of the damping boss (12). A positioning groove (10) is provided on the upper surface of the flange (5). A threaded groove (9) is passed through the inner wall of the flange (5). A positioning pin (13) and a bolt (14) are respectively provided on the inner walls of the threaded groove (9) and the positioning groove (10). A base (11) is inserted into the top of the positioning pin (13).

2. The vibration-damping gimbal for railway drone inspection according to claim 1, characterized in that: The threaded groove (9) and the positioning groove (10) are respectively opened on the upper and lower surfaces of the flange (5) and the base (11). The positioning pin (13) is respectively inserted into the upper surface of the flange (5) and the lower surface of the base (11). The bolt (14) is respectively threaded into the inner wall of the flange (5) and the lower surface of the base (11).

3. A vibration-damping gimbal for railway drone inspection according to claim 1, characterized in that: The threaded groove (9) and positioning groove (10) on the lower surface of the base (11) correspond to the threaded groove (9) and positioning groove (10) on the upper surface of the flange (5), and the positioning pin (13) is made of brass.

4. A vibration-damping gimbal for railway drone inspection according to claim 1, characterized in that: The industrial drone body (2) is fixedly installed on the top of the base (11), and the number of the vibration damping bosses (12) corresponds to the number of vibration damping sleeves (3), springs (7), and steel guide shafts (8).

5. A vibration-damping gimbal for railway drone inspection according to claim 1, characterized in that: The vibration damping boss (12) is fixedly installed on the lower surface of the flange (5), and the vibration damping boss (12) is made of fluororubber.

6. A vibration-damping gimbal for railway drone inspection according to claim 1, characterized in that: The vibration damping sleeve (3) is prepared by copolymerizing butadiene and acrylonitrile, and the number of vibration damping sleeves (3) is several.

Images