CN211061680U

CN211061680U - Monitoring device capable of detecting noise sound source direction

Info

Publication number: CN211061680U
Application number: CN201921624180.5U
Authority: CN
Inventors: 王春根; 袁丹; 黄鑫; 毛俊毅
Original assignee: Jiangsu Longhuan Environmental Technology Co ltd
Current assignee: Jiangsu Longhuan Environmental Technology Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-21
Anticipated expiration: 2029-09-26

Abstract

The utility model relates to a monitoring devices of observable noise sound source direction, use in the noise monitoring field, it is including wrapping movable rack and base, the base is placed subaerial, the rotating rack bottom is equipped with the connecting axle, fixedly connected with driving motor on the base, driving motor's the vertical upwards extension of motor shaft and with connecting axle fixed connection, be connected with three gauge rods on the rotating rack, three gauge rods are along rotating rack circumference evenly distributed, equal fixedly connected with sound level appearance on one end of rotating rack is kept away from to three gauge rods, be equipped with the controller on the base, each sound level appearance and driving motor all are connected with the controller electricity. The utility model discloses have and survey peripheral noise through setting up three sound level appearance to carry out the analysis to the noise intensity that sound level appearance surveyed through the controller, and control driving motor drive rotating turret and rotate, make the sensing bar at the sound level appearance place that detects the noise intensity strongest point to the sound source direction, replaced the effect that the people's ear surveyed noise source direction.

Description

Monitoring device capable of detecting noise sound source direction

Technical Field

The utility model belongs to the technical field of the technique of noise monitoring and specifically relates to a monitoring devices of observable noise sound source direction is related to.

Background

At present, with the development of science and technology, environmental noise has become a common pollution mode. The higher intensity noise may cause hearing fatigue or deafness, and the lower intensity noise may also act on the central nervous system of the brain through the auditory organs, so that various organs of the whole body are affected, various diseases are caused, and the life of people is greatly affected.

At present, environmental noise is generally controlled by isolating or protecting a noise source, a noise propagation path and a receiver, so that the position of the sound source is frequently required to be searched and judged, and workers can conveniently isolate and control the noise.

When a sound source is searched, the human ear is generally adopted to position and search the sound source, however, the judgment of the human ear is unreliable in many times, and the isolation work of workers is hindered.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but noise monitoring device of accurate detection sound source direction to prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a monitoring devices of observable noise sound source direction, includes rotating turret and base, the base is placed subaerial, the rotating turret bottom is equipped with the connecting axle, fixedly connected with driving motor on the base, driving motor's the vertical upwards extension of motor shaft and with connecting axle fixed connection, be connected with three gauge rods on the rotating turret, three gauge rods are along rotating turret circumference evenly distributed, and three the gauge rod all extends, three to the direction of keeping away from the rotating turret equal fixedly connected with sound level appearance on one end that the rotating turret was kept away from to the gauge rod, be equipped with the controller on the base, each sound level appearance and driving motor all are connected with the controller electricity.

By adopting the technical scheme, the three detection rods take the connecting frame as the center, uniformly extend to three directions along the circumferential direction of the connecting frame, detect the noise intensity at three positions through the sound level meters respectively positioned at the ends of the three detection rods, sequence the noise intensity detected by the three sound level meters by the controller, the noise intensity is equal to the distance between the sound level meters and a noise source, the controller controls the driving motor to drive the rotating frame, the rotating frame rotates to enable the sound level meter with the strongest detected noise intensity to rotate towards the direction pointed by the detection rod where the sound level meter with the second strongest detected noise intensity is positioned;

in the rotating process, the readings of the sound level meters with the second highest detected noise intensity are decreased due to the movement towards the direction far away from the sound source, the readings of the two sound level meters with the strongest and the weakest detected noise intensities are increased due to the approach of the two sound level meters with the second lowest detected noise intensities to the sound source, and when the difference value of the readings of the second and the third sound level meters with the originally detected noise intensities is below a preset value (namely, is close to equal), the pointing direction of the detection rod where the sound level meter with the strongest detected noise intensity is located is the sound source direction. The sound source direction is detected through the cooperation of the instrument and the mechanical structure to replace human ears to judge, so that the reliability of judgment is improved, and workers can accurately find the noise source and align the noise source to be isolated.

The utility model discloses further set up to: the driving motor adopts a mute motor, and a shielding case is arranged outside the driving motor.

By adopting the technical scheme, the mute motor is adopted and the isolation cover is arranged, so that the possibility of influence on the work of the monitoring device caused by noise generated during the work of the motor is reduced, and the reliability of a monitoring result of the device is improved.

The utility model discloses further set up to: the base is provided with a supporting platform, the lower end of the supporting platform is fixedly connected with the base, and the upper end of the supporting platform is rotatably connected with the connecting shaft.

Through adopting above-mentioned technical scheme, share the weight that driving motor's motor shaft bore through setting up a supporting bench to support the rotating turret, increased the structural stability of device, reduced driving motor because its motor shaft receives great axial load and the possibility of damaging.

The utility model discloses further set up to: the supporting table is rotationally connected with the connecting shaft through an angular contact bearing, the angular contact bearing is fixedly connected to the supporting table, and the angular contact bearings are arranged according to the direction of the vertical downward axial force.

Through adopting above-mentioned technical scheme, because angular contact bearing has can bear axial load, the little effect of noise at work to vibration and noise that produce when having reduced brace table and rotating turret when supporting the rotating turret, and then the reliability of the monitoring result of device has been promoted.

The utility model discloses further set up to: and a lubricating oil box is fixedly connected to the connecting shaft above the angular contact bearing, a cotton thread is arranged at the bottom end of the lubricating oil box, and the cotton thread penetrates through the bottom end of the lubricating oil box and is tightly attached to the side wall of the connecting shaft.

By adopting the technical scheme, the lubricating oil is slowly and continuously led out through the cotton threads by filling the lubricating oil into the lubricating oil box by a worker, and slides down to the angular contact bearing along the side wall of the connecting shaft to continuously lubricate the angular contact bearing, so that the noise and vibration of the angular contact bearing during working are further reduced.

The utility model discloses further set up to: one end, close to the angular contact bearing, of a motor shaft of the driving motor is provided with a collecting box, the collecting box is arranged around the circumferential side wall of the motor shaft, an oil outlet is formed in the bottom end of the collecting box, and a sealing cover is connected to the oil outlet.

Through adopting above-mentioned technical scheme, will articulate the gliding lubricating oil collection of contact bearing through the collection box that sets up on the motor shaft, when to lubricating oil reuse, reduced lubricating oil scattering polluted environment and be difficult for abluent condition.

The utility model discloses further set up to: the detection rod is a telescopic rod.

Through adopting above-mentioned technical scheme, the staff of being convenient for after detecting with the gauge rod withdrawal, reduce the space that the device occupy, avoid the too big influence personnel of device occupation space to pass through and follow-up construction etc. the condition, promoted the device convenience.

The utility model discloses further set up to: the lower end of the base is fixedly connected with a plurality of universal wheels.

Through adopting above-mentioned technical scheme, through set up the universal wheel under the base, make the device easily slide subaerial, the staff of being convenient for transports and arranges the device.

To sum up, the utility model discloses a beneficial technological effect does:

1. the three sound level meters are arranged to detect peripheral noise, the controller is used for analyzing the noise intensity detected by the sound level meters, and according to the principle that the transmission of sound is weakened along with the increase of distance, the controller controls the driving motor to drive the rotating frame to rotate according to the analysis result, so that the detection rod where the sound level meter with the strongest noise intensity is detected points to the direction of a sound source, and the detection rod replaces human ears to detect the direction of the noise sound source;

2. through setting up each gauge rod into the telescopic link to at base bottom fixed connection universal wheel, shared space when having reduced the device and idle, and be convenient for transportation and arrangement.

Drawings

Fig. 1 is a schematic diagram of the present embodiment for showing the overall structure.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a top view of the present embodiment for showing the distribution of the detection rods.

In the figure, 1, a base; 11. a drive motor; 2. a rotating frame; 21. a connecting shaft; 22. a probe rod; 221. a sound level meter; 3. a controller; 4. an isolation cover; 5. a support table; 51. an angular contact bearing; 6. a lubricating oil cartridge; 61. cotton threads; 7. a collection box; 71. an oil outlet; 711. a sealing cover; 8. a universal wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a monitoring devices of observable noise sound source direction, including rotating turret 2, brace table 5 and base 1, brace table 5 fixed connection is in base 1 top, 5 tops of brace table are rotated and are connected with connecting axle 21, connecting axle 21 and rotating turret 2 fixed connection, three gauge rods 22 of fixedly connected with on the rotating turret 2, three gauge rods 22 are the directional rotating shaft center of rotating turret 2 of one end, the other end is radial to the direction extension of keeping away from rotating turret 2, and three gauge rods 22 are along the circumference evenly distributed of rotating turret 2, contained angle between two arbitrary gauge rods 22 is 120 degrees (refer to fig. 4), three gauge rods 22 keep away from sound level appearance 221 of the equal fixedly connected with of one end of base 1. The base 1 is fixedly connected with a driving motor 11 used for driving the rotating frame 2 to rotate, a motor shaft of the driving motor 11 vertically extends upwards, penetrates through the supporting table 5 and is fixedly connected with the bottom end of the connecting shaft 21, one side of the base 1, which is positioned on the motor, is fixedly connected with a controller 3, the controller 3 is respectively electrically connected with the three sound level meters 221 and the driving motor 11 and is used for receiving detection signals of the three sound level meters 221 and controlling the rotation of the driving motor 11, the three sound level meters 221 are respectively provided with an indicator lamp, the indicator lamps are controlled by the controller 3, and one upper indicator lamp with the highest detected noise intensity in the three sound level meters 221 is turned on;

referring to fig. 1, in order to reduce the occupied space of the whole device when the device is idle and facilitate storage, a detection rod 22 is provided as a telescopic rod, and meanwhile, a plurality of universal wheels 8 are fixedly connected to the lower side of a base 1 to facilitate transportation and arrangement of the device, so that workers can push the device conveniently;

referring to fig. 1, a sound level meter 221 extending in three directions around a turret 2 is provided to detect the intensity of noise at each position at the same time, and the intensity of each noise is detected. Since the sound is gradually attenuated along the propagation direction, and when the sound source is far away, the propagation of the noise can be considered as parallel propagation with respect to the distance between the three sound level meters 221, so that the intensity of the noise detected by the three sound level meters 221 can represent the distance from the sound source. When the three sound level meters 221 transmit the detected noise intensity signals to the controller 3, the controller 3 will compare and sequence the noise intensities;

referring to fig. 1, for convenience of description, the three detection bars 22 are referred to as a bar a, a bar B and a bar C in order from strong to weak according to the intensity of noise detected by the sound level meter 221 thereon, the controller 3 controls the driving motor 11 to rotate and rotates the bar a in the direction of the bar B, during which the readings of the detectors on the bar a and the bar C are increased due to the approach toward the sound source and the readings of the bar B are decreased due to the departure from the sound source, and when the readings of the detectors on the bar B and the bar C are less than a predetermined value, that is, the values of the detectors on the two bars are approximately equal, the direction in which the bar a is directed is the direction of the sound source of the noise.

Referring to fig. 1, the driving motor 11 is a silent motor, the exterior of the silent motor is provided with an isolation cover 4, the isolation cover is provided with a through hole for the motor shaft of the driving motor 11 to penetrate through, the supporting table 5 is rotatably connected with the connecting shaft 21 through an angular contact bearing 51, the angular contact bearing 51 is installed in the direction of bearing the axial load from top to bottom, the angular contact bearing 51 has the capability of bearing the axial load and has small working vibration and noise at the same time, and therefore the influence of the noise and the vibration on the detection reliability of the device is reduced.

Referring to fig. 2, a lubricating oil box 6 is fixedly connected to a position, above the angular contact bearing 51, of the connecting shaft 21, an oil filling opening is formed in the upper portion of the lubricating oil box 6, a cotton thread 61 is fixedly connected to the bottom end of the oil filling opening, the cotton thread 61 penetrates through the lubricating oil box 6 and is fixedly connected with the side wall of the connecting shaft 21, lubricating oil is led out by the cotton thread 61 and slowly flows down along the side wall of the connecting shaft 21 and enters the bearing, and the possibility of noise and vibration generated in the bearing operation process is further reduced.

Referring to fig. 3, a collecting box 7 is fixedly connected to a position below the angular contact bearing 51 on a motor shaft of the driving motor 11, an oil outlet 71 is formed in the bottom end of the collecting box 7, a sealing cover 711 is connected to the oil outlet 71 in a threaded manner, and lubricating oil along the angular contact bearing 51 is collected through the collecting box 7, so that the situation that the lubricating oil is scattered everywhere to influence the environment is reduced while the lubricating oil is recycled.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A monitoring device capable of detecting the direction of a noise sound source is characterized in that: including rotating turret (2) and base (1), base (1) is placed subaerial, rotating turret (2) bottom is equipped with connecting axle (21), fixedly connected with driving motor (11) on base (1), the vertical upwards extension of motor shaft of driving motor (11) and with connecting axle (21) fixed connection, be connected with three gauge rods (22), three on rotating turret (2) gauge rod (22) are along rotating turret (2) circumference evenly distributed, and three gauge rod (22) all extend to the direction of keeping away from rotating turret (2), three equal fixedly connected with sound level appearance (221) in one end of rotating turret (2) is kept away from in gauge rod (22), be equipped with controller (3) on base (1), each sound level appearance (221) and driving motor (11) all are connected with controller (3) electricity.

2. The apparatus for monitoring the direction of a detectable noise source according to claim 1, wherein: the drive motor (11) adopts a mute motor, and the outer cover of the drive motor (11) is provided with a shielding case (4).

3. The apparatus for monitoring the direction of a detectable noise source according to claim 1, wherein: the base (1) is provided with a supporting platform (5), the lower end of the supporting platform (5) is fixedly connected with the base (1), and the upper end of the supporting platform is rotatably connected with the connecting shaft (21).

4. The apparatus for monitoring the direction of a detectable noise source according to claim 3, wherein: the supporting platform (5) is rotationally connected with the connecting shaft (21) through an angular contact bearing (51), the angular contact bearing (51) is fixedly connected to the supporting platform (5), and the angular contact bearing (51) is arranged according to the direction of the vertical downward axial force.

5. The apparatus for monitoring the direction of a detectable noise source according to claim 4, wherein: the lubricating oil box (6) is fixedly connected to the connecting shaft (21) above the angular contact bearing (51), cotton threads (61) are arranged at the bottom end of the lubricating oil box (6), and the cotton threads (61) penetrate through the bottom end of the lubricating oil box (6) and cling to the side wall of the connecting shaft (21).

6. The apparatus for monitoring the direction of a detectable noise source according to claim 5, wherein: one end, close to angular contact bearing (51), of a motor shaft of driving motor (11) is provided with a collecting box (7), the collecting box (7) is arranged around the circumferential side wall of the motor shaft, an oil outlet (71) is formed in the bottom end of the collecting box, and a sealing cover (711) is connected to the oil outlet (71).

7. The apparatus for monitoring the direction of a detectable noise source according to claim 1, wherein: the detection rod (22) is a telescopic rod.

8. The apparatus for monitoring the direction of a detectable noise source according to claim 7, wherein: the lower end of the base (1) is fixedly connected with a plurality of universal wheels (8).