Online abnormal sound detection device for compressor

Abstract

The utility model belongs to the technical field of abnormal sound detection, and particularly relates to an online abnormal sound detection device for a compressor, which comprises a detection base, the surface of the detection base is fixedly connected with a lifting platform, the lifting platform is fixedly connected with a sensor, the detection base is provided with a sound amplifying device, and the sound amplifying device comprises a fixed seat. According to the online abnormal sound detection device for the compressor, through the arranged sound amplifying device, when sound enters a permanent magnet, a vibrating diaphragm vibrates to drive a coil I to vibrate, a magnet generates a magnetic field, a magnetic induction line generates alternating current, the alternating current enters a coil II to drive a movable block in a sound amplifying shell to move, and the movable block drives a sound amplifying vibrating diaphragm to vibrate; the electric signals are converted into sound signals again and amplified and output, the sound amplification vibrating diaphragm is subjected to electromagnetic conversion and amplification processes, and the output sound signals are more loud than the input sound signals, so that the sound amplification effect is achieved, efficient sound amplification is achieved, and the detection accuracy and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of abnormal noise detection, in particular to an online abnormal noise detection device for a compressor. Background Art

[0002] Compressors are widely used in refrigeration, air conditioning, and air compression. However, various faults may occur during operation, with abnormal noise being a common symptom. Abnormal noise can be caused by wear, looseness, or damage to internal compressor parts. If not detected and addressed promptly, it can lead to decreased compressor performance, exacerbated faults, and even safety incidents.

[0003] At present, in some cases, the abnormal noise of the compressor may be relatively weak, especially in an environment with high background noise. Due to the lack of amplification equipment, it may be difficult for inspection personnel to clearly hear these weak abnormal sounds, and it is easy to ignore some potential faults. In view of this, we propose a compressor online abnormal noise detection device. Utility Model Content

[0004] The main purpose of the utility model is to provide an online abnormal noise detection device for a compressor, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes an online abnormal noise detection device for a compressor, comprising a detection base, the outer wall of the detection base is fixedly connected to a slide rail, a compressor is placed on a platform slidably connected to the slide rail, a lifting platform is fixedly connected to the surface of the detection base, a lower pressure plate is provided on the lifting platform, a sensor is fixedly connected to the lifting platform, a sound amplification device is provided on the detection base, a clamping limit device is provided on the sound amplification device, and the sound amplification device includes:

[0006] A fixing seat, the outer wall of the detection base is fixedly connected to the fixing seat, the fixing seat is clamped with the sound amplifier shell through a clamping limit device, and a sound receiving port is opened on the surface of the sound amplifier shell;

[0007] A diaphragm is fixedly connected to the inner wall of the sound amplifier housing, the diaphragm is fixedly connected to the first coil, and a first magnet is provided in the sound amplifier housing;

[0008] A fixed plate is fixedly connected to the inner wall of the sound amplifier shell, a second magnet is provided on the fixed plate, a second coil is provided outside the second magnet, and the movable block inside the sound amplifier shell drives the sound amplifier diaphragm to vibrate.

[0009] Preferably, the clamping and limiting device includes a limiting plate, and the inner wall of the fixing seat is fixedly connected to the limiting plate. When the sound amplifier shell needs to be installed on the fixing seat, the sound amplifier shell is inserted into the fixing seat.

[0010] Preferably, a communication groove is provided on the inner wall of the fixing seat, a clamping block is provided in the communication groove, and the clamping blocks are provided in multiple groups.

[0011] Preferably, a through groove is provided on the surface of the clamping block, and a spring is provided in the through groove. Multiple groups of clamping blocks are elastically connected by the spring. After the clamping blocks are squeezed by the sound amplifier shell, they move outward in the connecting groove. The movement of the clamping blocks causes the springs in the through grooves to generate reverse elastic force, which acts on the clamping blocks, so that the clamping blocks tightly clamp the sound amplifier shell.

[0012] Preferably, a control block is fixedly connected to the outer wall of a group of the clamping blocks, and the control block passes through a movable slot provided in the fixing seat.

[0013] Preferably, the control block is sleeved with the threaded rod, and the threaded rod is threadedly connected to the fixing seat. In order to further enhance the stability of the clamping, the threaded rod can be rotated and the threaded rod is threadedly connected to the fixing seat. When the threaded rod rotates, the control block moves in the movable groove. The movement of the control block drives a group of clamping blocks connected to it to move, and then the action of the spring drives the other clamping blocks to adjust their positions synchronously, thereby achieving a more secure clamping of the sound amplifier shell.

[0014] The utility model provides an online abnormal noise detection device for a compressor, which has the following beneficial effects:

[0015] (1) The compressor online abnormal sound detection device is equipped with a sound amplification device. When sound enters the permanent magnet, the vibration of the diaphragm drives the vibration of coil one, the magnet generates a magnetic field, and the magnetic flux lines generate an alternating current. The waveform of the current is the same as the vibration wave. The alternating current reaches coil two. The induced current generated by coil one and coil two is processed to drive the movable block inside the sound amplification shell to move. The movable block drives the sound amplification diaphragm to vibrate, converting the electrical signal into a sound signal again and amplifying the output. After the electromagnetic conversion and amplification process, the sound amplification diaphragm outputs a sound signal that is louder than the input sound signal, thereby achieving the effect of sound amplification, efficient sound amplification, and improving the accuracy and reliability of detection.

[0016] (2) The compressor online abnormal noise detection device is provided with a clamping limit device. When the sound amplifier shell needs to be installed on the fixed seat, the sound amplifier shell is inserted into the fixed seat. After the clamping block is squeezed by the sound amplifier shell, it moves outward in the connecting groove, and the clamping block tightly clamps the sound amplifier shell. In order to further enhance the stability of the clamping, the threaded rod can be rotated. The threaded rod is threadedly connected to the fixed seat. When the threaded rod rotates, the control block moves in the movable groove. The movement of the control block drives a group of clamping blocks connected to it to move, and then the action of the spring drives other clamping blocks to adjust their positions synchronously, so as to achieve a more secure clamping of the sound amplifier shell, facilitate the rapid installation of the sound amplifier device, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a structural diagram of the sound amplification device of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the utility model sound amplification device Figure 1 ;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of A in the middle;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the sound amplifier shell of the utility model;

[0023] Figure 6 This is a schematic diagram of the explosion structure of the utility model sound amplification device Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the explosion structure of the clamping and limiting device of the utility model.

[0025] Description of Figure Numbers:

[0026] 1. Detection base; 2. Slide rail; 3. Lifting platform; 4. Lower pressure plate; 5. Sensor; 6. Sound amplification device; 61. Fixed seat; 62. Sound amplification shell; 63. Sound receiving port; 64. Diaphragm; 65. Coil 1; 66. Magnet 1; 67. Fixed plate; 68. Coil 2; 69. Magnet 2; 610. Movable block; 611. Sound amplification diaphragm; 7. Clamping and limiting device; 71. Limiting plate; 72. Connecting groove; 73. Clamping block; 74. Through groove; 75. Spring; 76. Control block; 77. Movable groove; 78. Threaded rod.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 The utility model proposes an online abnormal sound detection device for a compressor, including a detection base 1, an outer wall of the detection base 1 is fixedly connected to a slide rail 2, a compressor is placed on a platform slidably connected to the slide rail 2, a lifting platform 3 is fixedly connected to the surface of the detection base 1, a lower pressure plate 4 is provided on the lifting platform 3, the lifting platform 3 can adjust the height as needed, the lower pressure plate 4 is provided on the lifting platform 3, when the lifting platform 3 rises, the lower pressure plate 4 can press the compressor downward so that it remains stable during the detection process, a sensor 5 is fixedly connected to the lifting platform 3, the sensor 5 is used to detect various signals generated by the operation of the compressor, a sound amplifying device 6 is provided on the detection base 1, a clamping limit device 7 is provided on the sound amplifying device 6, and the sound amplifying device 6 includes a fixed seat 61.

[0030] In the embodiment of the present invention, in order to achieve efficient sound amplification and improve the accuracy and reliability of detection, the outer wall of the detection base 1 is fixedly connected with a fixing seat 61, and the fixing seat 61 is clamped with the sound amplifier shell 62 through the clamping limit device 7. A sound receiving port 63 is provided on the surface of the sound amplifier shell 62. The sound receiving port 63 on the surface of the sound amplifier shell 62 receives external sound signals, especially the abnormal sound generated when the compressor is running. These sounds enter the inside of the sound amplifier shell 62 through the sound receiving port 63. The inner wall of the sound amplifier shell 62 is fixedly connected with a diaphragm 64, and the diaphragm 64 is fixedly connected to the coil 1 65. A magnet 1 66 is provided in the sound amplifier shell 62, and a fixing plate 67 is fixedly connected to the inner wall of the sound amplifier shell 62. A magnet 2 69 is provided on the fixing plate 67, and a coil 2 68 is provided outside the magnet 2 69. The movable block 610 inside the shell 62 drives the sound amplifying diaphragm 611 to vibrate. When sound enters, the vibration of the diaphragm 64 drives the coil 1 65 to vibrate together. The magnet generates a magnetic field, and the magnetic lines of force generate an alternating current. The waveform of the current is the same as the vibration wave. The alternating current reaches the coil 2 68, and vibrates under the action of the magnetic field, driving the sound amplifying diaphragm 611 to vibrate together. The induced current generated by the coil 1 65 and the coil 2 68 is processed to drive the movable block 610 inside the sound amplifying shell 62 to move. The movable block 610 drives the sound amplifying diaphragm 611 to vibrate, converting the electrical signal into a sound signal again and amplifying the output. Since the area of ​​the sound amplifying diaphragm 611 is large and after the electromagnetic conversion and amplification process, the output sound signal is louder than the input sound signal, thereby achieving the effect of sound amplification.

[0031] The locking cam 73 is fixed to the locking cam 76 so that the locking cam 76 can be locked and unlocked, and the locking cam 76 can be unlocked when the locking cam 76 is unlocked. The elastic force in the direction acts on the clamping block 73, so that the clamping block 73 tightly clamps the sound amplifier shell 62. A group of clamping blocks 73 are fixedly connected to the outer wall of the control block 76. The control block 76 passes through the movable groove 77 opened in the fixing seat 61. The control block 76 is sleeved with the threaded rod 78, and the threaded rod 78 is threadedly connected to the fixing seat 61. In order to further enhance the stability of the clamping, the threaded rod 78 can be rotated and the threaded rod 78 is threadedly connected to the fixing seat 61. When the threaded rod 78 rotates, the control block 76 moves in the movable groove 77. The movement of the control block 76 drives the group of clamping blocks 73 connected thereto to move, and then the other clamping blocks 73 are driven to adjust their positions synchronously through the action of the spring 75, thereby achieving a more secure clamping of the sound amplifier shell 62.

[0032] When the locking cam 75 is in the unlocked position, the locking cam 73 is in the unlocked position, and the locking cam 73 is locked, so that the locking cam 73 is locked.

[0033] When sound enters the sound receiving port 63 through the sound amplifier shell 62, the diaphragm 64 vibrates, driving the coil 1 65 to vibrate together. The magnet generates a magnetic field, and the magnetic lines of force generate an alternating current. The waveform of the current is the same as the vibration wave. The alternating current reaches the coil 2 68. The induced current generated by the coil 1 65 and the coil 2 68 is processed to drive the movable block 610 inside the sound amplifier shell 62 to move. The movable block 610 drives the sound amplifier diaphragm 611 to vibrate, converting the electrical signal into a sound signal again and amplifying the output. Since the area of ​​the sound amplifier diaphragm 611 is large and after the electromagnetic conversion and amplification process, the output sound signal is louder than the input sound signal, thereby achieving the sound amplification effect, efficient sound amplification, and improving the accuracy and reliability of detection.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A compressor online abnormal noise detection device, comprising a detection base (1), wherein the outer wall of the detection base (1) is fixedly connected to a slide rail (2), a compressor is placed on a platform slidably connected to the slide rail (2), a lifting platform (3) is fixedly connected to the surface of the detection base (1), and a lower pressure plate (4) is provided on the lifting platform (3), characterized in that: A sensor (5) is fixedly connected to the lifting platform (3), a sound amplifying device (6) is provided on the detection base (1), a clamping and limiting device (7) is provided on the sound amplifying device (6), and the sound amplifying device (6) includes: A fixing seat (61), the outer wall of the detection base (1) is fixedly connected to the fixing seat (61), the fixing seat (61) is clamped with the sound amplifier shell (62) through a clamping limit device (7), and a sound receiving port (63) is provided on the surface of the sound amplifier shell (62); A diaphragm (64), the inner wall of the sound amplifier housing (62) is fixedly connected to the diaphragm (64), the diaphragm (64) is fixedly connected to the coil (65), and a magnet (66) is provided in the sound amplifier housing (62); A fixed plate (67) is fixedly connected to the inner wall of the sound amplifier housing (62), a second magnet (69) is provided on the fixed plate (67), a second coil (68) is provided outside the second magnet (69), and a movable block (610) inside the sound amplifier housing (62) drives the sound amplifier diaphragm (611) to vibrate.

2. The compressor online abnormal noise detection device according to claim 1, characterized in that: The clamping and limiting device (7) comprises a limiting plate (71), and the inner wall of the fixing seat (61) is fixedly connected to the limiting plate (71).

3. The compressor online abnormal noise detection device according to claim 2, characterized in that: A communicating groove (72) is provided on the inner wall of the fixing seat (61), a clamping block (73) is provided in the communicating groove (72), and a plurality of groups of the clamping blocks (73) are provided.

4. The compressor online abnormal noise detection device according to claim 3, characterized in that: A through slot (74) is provided on the surface of the clamping block (73), a spring (75) is provided in the through slot (74), and multiple groups of clamping blocks (73) are elastically connected via the spring (75).

5. The compressor online abnormal noise detection device according to claim 4, characterized in that: A control block (76) is fixedly connected to the outer wall of a group of the clamping blocks (73), and the control block (76) passes through a movable groove (77) provided in the fixing seat (61).

6. The compressor online abnormal noise detection device according to claim 5, characterized in that: The control block (76) is sleeved with the threaded rod (78), and the threaded rod (78) is threadedly connected to the fixing seat (61).

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