Abnormal sound detection equipment

Abstract

The utility model discloses abnormal sound detection equipment, and relates to the technical field of voiceprint detection, the abnormal sound detection equipment comprises a bearing seat, an abnormal sound detection device and a transfer assembly, the bearing seat is used for bearing a compressor to be detected; the abnormal sound detection device comprises a detection piece, the detection piece can move in the vertical direction and can move in the horizontal direction, and the detection piece is used for obtaining vibration data when the compressor located on the bearing seat works. The transferring assembly comprises a movably-arranged pickup part, the pickup part has a pickup state and a rollback state, the detection part can be compatible with compressors of different specifications through multi-directional adjustment, so that the measurement requirement is met, the detection part can monitor vibration of the compressor on line, vibration data in the working process of the compressor can be obtained, and the measurement accuracy is improved. And when the detection piece is relatively fixed with the compressor during detection, the pickup part is converted into a rollback state, so that the influence on the detection piece is avoided, and the abnormal sound detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of voiceprint detection technology, and in particular to anomaly detection equipment. Background Technology

[0002] Due to factors such as component manufacturing, production processes, and parts assembly, compressors may experience abnormal vibrations during production, resulting in abnormal noises during operation. Current methods for detecting abnormal noises involve offline sampling in the laboratory, where compressors are removed from the production line for manual inspection and then returned to the line. This method has poor detection effectiveness. Utility Model Content

[0003] The main objective of this invention is to provide an abnormal noise detection device that can monitor and analyze the vibration data of a compressor online, which is beneficial for acquiring data across the entire frequency band of the compressor and is compatible with compressors of different specifications.

[0004] To achieve the above objectives, this utility model proposes an abnormal noise detection device for detecting abnormal noise in a compressor. The abnormal noise detection device includes:

[0005] A support base for supporting the compressor to be tested; an abnormal noise detection device including a detection element that is movable vertically and horizontally, the detection element being used to acquire vibration data of the compressor operating on the support base; and...

[0006] A transfer assembly includes a movably disposed pickup unit, the pickup unit having a pickup state that is fixed relative to the detection element to drive the detection element to move, and a retraction state that is separated from the detection element when the detection element is fixed relative to the compressor under test.

[0007] In one embodiment, the detection element is provided with an adsorption part, which is used to adsorb onto the surface of the compressor;

[0008] In the retraction state, the pickup unit releases the detection element so that the detection element is fixed relative to the compressor by the adsorption unit.

[0009] In one embodiment, the adsorption unit includes an electromagnet.

[0010] In one embodiment, the pickup unit includes two clamping members spaced apart in a horizontal direction, the two clamping members having a travel of moving closer to or further away from each other, and the two clamping members being used to jointly clamp or release the detection element.

[0011] In one embodiment, the detection element includes a mounting bracket and a sensor fixed to the mounting bracket, wherein the mounting bracket has two clearance holes spaced apart in the horizontal direction;

[0012] The two clamping members are inserted into the two clearance holes.

[0013] In one embodiment, each of the clearance holes extends horizontally, and the dimensions of the two clearance holes in the vertical direction gradually increase in the direction away from each other.

[0014] In one embodiment, the adsorption unit includes an electromagnet.

[0015] In one embodiment, the transfer assembly further includes:

[0016] A support base is fixed to the bearing base and is movable in the vertical direction;

[0017] A mounting base is provided on the support base, and the relative position of the mounting base and the support base is adjustable in the horizontal direction;

[0018] The pickup unit is located on the mounting base.

[0019] In one embodiment, the support base has a plurality of mating holes spaced horizontally, and the mounting base can be selectively mounted on at least a portion of the mating holes via screw connections; and / or,

[0020] The mounting base is also provided with a pushing part, which is movably mounted to the mounting base in the horizontal direction and spaced apart from the picking part in the vertical direction. During the movement, the pushing part contacts the detection element and causes the detection element to move toward the compressor.

[0021] In one embodiment, the mounting base is provided with at least one arc-shaped hole, and the extending direction of the arc-shaped hole intersects with the extending direction of the mounting base;

[0022] The pickup part is slidably mounted along the extension direction of the arc-shaped hole so that it can rotate relative to the mounting base.

[0023] In one embodiment, the detection element includes:

[0024] The mounting bracket is capable of moving vertically and swinging horizontally; and,

[0025] An accelerometer is fixedly mounted to the mounting bracket.

[0026] In one embodiment, the mounting bracket is provided with an adsorption part spaced apart from the acceleration sensor, the adsorption part being used to adsorb onto the surface of the compressor.

[0027] In the technical solution of this utility model, the bearing seat plays a role in bearing and supporting, providing a place for the compressor and related structures. The detection component can monitor the vibration of the compressor online and obtain vibration data during its operation. Considering the effect of vibration data collection, the test point positions of different specifications of compressors may be different. Through multi-directional adjustment of the detection component, it can be compatible with compressors of different specifications, thereby meeting the measurement requirements. The pickup part has a pickup state and a retraction state. When the detection component is in the pickup state, it can drive the detection component to move to correspond with the compressor. When the detection component is fixed relative to the compressor during detection, the pickup part switches to the retraction state, thereby avoiding the influence on the detection component, improving the accuracy of abnormal noise detection, and thus preventing compressors with poor vibration from entering the market or subsequent assembly processes. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of an embodiment of the abnormal noise detection device provided by this utility model;

[0030] Figure 2 for Figure 1 A schematic diagram showing the fit (at an angle) between the detection component and the pickup unit;

[0031] Figure 3 for Figure 1 A schematic diagram of the detection component and the pickup unit in action (from another angle);

[0032] Figure 4 for Figure 1 A schematic diagram showing the fit between the central support and the mounting base.

[0033] Explanation of icon numbers:

[0034] 100. Noise detection equipment; 1. Support base; 2. Noise detection device; 21. Detection component; 211. Mounting bracket; 212. Accelerometer sensor; 213. Clearance hole; 22. Adsorption part; 23. Transfer assembly; 231. Clamping part; 232. Support base; 2321. Mating hole; 233. Mounting base; 2331. Arc-shaped hole; 234. Pushing part; 200. Compressor.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] 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.

[0037] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] Due to factors such as component manufacturing, production processes, and parts assembly, compressors may experience abnormal vibrations during production, resulting in abnormal noises during operation. Current methods for detecting abnormal noises involve offline sampling in the laboratory, where compressors are removed from the production line for manual inspection and then returned to the line. This method has poor detection effectiveness.

[0040] In view of this, the present invention provides an abnormal noise detection device that can monitor and analyze the vibration data of the compressor online, which is beneficial for acquiring data of the compressor across the entire frequency band and is compatible with compressors of different specifications.

[0041] Please refer to Figures 1 to 2The noise detection device 100 includes a support base 1, a noise detection device 2, and a transfer assembly 23. The support base 1 is used to support the compressor 200 to be tested. The noise detection device 2 includes a detection element 21, which can move in the vertical direction and in the horizontal direction. The detection element 21 is used to acquire vibration data of the compressor 200 when it is working on the support base 1. The transfer assembly 23 includes a movable pickup part, which has a pickup state that is fixed relative to the detection element to drive the detection element 21 to move, and a retraction state that separates from the detection element when the detection element 21 is fixed relative to the compressor to be tested.

[0042] In the technical solution of this utility model, the bearing seat 1 plays the role of bearing and supporting, providing a place for the compressor 200 and related structures. The detection element 21 can monitor the vibration of the compressor 200 online and obtain vibration data during its operation. Considering the effect of vibration data collection, the test point positions of different specifications of compressors 200 may be different. Through the multi-directional adjustment of the detection element 21, it can be compatible with compressors 200 of different specifications, thereby meeting the measurement requirements. The pickup part has a pickup state and a retraction state. When the pickup part is in the pickup state, it can drive the detection element 21 to move to correspond with the compressor 200. When the detection element 21 is fixed relative to the compressor 200 during detection, the pickup part switches to the retraction state, thereby avoiding the influence on the detection element, improving the accuracy of abnormal noise detection, and thus preventing compressors 200 with poor vibration from entering the market or subsequent assembly processes.

[0043] This utility model does not limit the specific form of the detection element 21. It can be a vibration sensor, a sound sensor, or other detectors. In some embodiments, please refer to Figure 2 The detection component 21 includes a mounting bracket 211 and an acceleration sensor 212. The mounting bracket 211 is movable in the vertical direction and can swing in the horizontal direction to cooperate with the relevant drive structure. The acceleration sensor 212 is fixedly mounted to the mounting bracket 211. The main function of the acceleration sensor 212 is to measure the acceleration of an object. In this device, it is used to detect the vibration index by monitoring the vibration frequency during the operation of the compressor 200.

[0044] Specifically, the mounting bracket 211 is preferably made of a lightweight material, thereby reducing the impact of the weight of the mounting bracket on the acceleration sensor 212.

[0045] This invention does not limit the way the accelerometer 212 is fixed to the compressor 200. In some embodiments, the mounting bracket 211 is provided with an adsorption part 22 spaced apart from the accelerometer 212. The adsorption part 22 is used to adsorb onto the surface of the compressor 200 to increase the stability of vibration acquisition.

[0046] The adsorption part 22 can be a magnetic structure, which can be magnetically fixed by cooperating with the magnetic material on the surface of the compressor 200. The adsorption part 22 can also be a suction cup or adhesive.

[0047] In one embodiment of this utility model, the adsorption part 22 is an electromagnet. When the electromagnet is energized, it generates a magnetic attraction force, which can adsorb and fix it on the surface of the compressor 200, maintaining a tight fit between the detection element 21 and the compressor 200. When the electromagnet is de-energized, the magnetic attraction force disappears, thereby allowing the detection element 21 to move freely.

[0048] This utility model does not limit the form in which the detection element 21 can move. Specifically, the picking unit can be driven by a multi-axis drive structure or by a combination of multiple cylinders. This utility model does not limit this.

[0049] When the detection element 21 is provided with an adsorption part 22, since the adsorption part 22 itself can achieve relative fixation between the detection element 21 and the compressor 200, when the adsorption part 22 is not in contact with the compressor 200, the pickup part is in the pickup state and is used to pick up the detection element 21 to drive the detection element 21 to move. When the adsorption part 22 comes into contact with the compressor 200, the pickup part switches to the retraction state and the pickup part releases the detection element 21 so that the detection element 21 is adsorbed on the surface of the compressor 200, so as to avoid the pickup part applying force to the detection element 21 and affecting the detection accuracy of the detection element 21.

[0050] It should be understood that when the adsorption part 22 is an electromagnet, the electromagnet is not energized during the adjustment state, driving the pickup part to move and thereby adjusting the relative position of the detection element 21 and the compressor 200. After the position is adjusted, the electromagnet contacts the surface of the compressor 200, and the electromagnet is energized to form a magnetically fixed engagement state. At this time, the pickup part separates from the detection element 21, so that the detection element 21 can independently engage with the compressor 200.

[0051] In other embodiments, the adsorption part 22 may be omitted, and the pickup part may serve to drive the detection movement and make the detection element 21 fit or separate from the compressor 200. In this case, it is necessary to consider the force applied to the compressor 200 when the pickup part drives the detection element 21 to abut against the compressor 200, so as to avoid damage to the detection element 21 or the compressor 200 due to excessive force.

[0052] Furthermore, the pickup unit can be a gripper, a suction nozzle, or other structure. In this embodiment, the pickup unit includes two clamping members 231 spaced apart in the horizontal direction. The two clamping members 231 have a travel distance that allows them to move closer to or further away from each other. The two clamping members 231 are used to jointly clamp the detection member 21. The relative movement of the two clamping members 231 can achieve the effect of clamping and fixing, while the opposite movement can release the detection member 21. The two clamping members 231 can be driven simultaneously by a finger cylinder or a two-way lead screw structure, or they can be driven individually by two cylinders.

[0053] Please refer to Figure 2 and Figure 3 The detection component 21 includes a mounting bracket 211 and a sensor fixed to the mounting bracket 211. The mounting bracket 211 has two horizontally spaced clearance holes 213. Two clamping members 231 pass through the two clearance holes 213. During use, the two clamping members 231 remain within the two clearance holes 213. When the detection component 21 needs to be clamped, the two clamping members 231 move relative to each other, thus abutting against the adjacent walls of the two clearance holes 213, thereby clamping and fixing the mounting bracket 211. When the detection component 21 is fixed to the compressor 200 by the adsorption part 22, the two clamping members 231 move away from each other and do not contact any of the walls of the clearance holes 213. This ensures that the clamping members 231 have a clamping and retraction design, allowing the accelerometer sensor to separate from the pickup part when collecting information, reducing the influence of the transfer assembly 23 itself on vibration acquisition. Meanwhile, due to the restriction of the clearance hole 213 on the clamping member 231, the end of the clamping member 231 is still inside the clearance hole 213. Thus, when the adsorption part 22 is abnormal, the clamping member 231 can hook the mounting bracket 211, so that the detection member 21 will not fall off.

[0054] It should be noted that the clearance hole 213 can be a circular hole, an elongated hole, a triangular hole, or other irregular hole shapes. The part of the clamping member 231 that extends into the clearance hole 213 can be designed to conform to the shape. In this embodiment, each clearance hole 213 extends horizontally, and the dimensions of the two clearance holes 213 in the vertical direction gradually increase in the direction away from each other.

[0055] Furthermore, to prevent the mounting bracket 211 from slipping, the upper end face of the clamping member 231 is recessed with a notch so that the mounting bracket 211 can be hung.

[0056] Please refer to Figure 1 and Figure 4The transfer assembly 23 also includes a support base 232 and a mounting base 233. The support base 232 is fixed to the carrier base 1 and is movable in the vertical direction; it can be driven by a lifting mechanism, such as a hydraulic cylinder or a pneumatic cylinder. The mounting base 233 is located on the support base 232, and the relative position of the mounting base 233 and the support base 232 is adjustable in the horizontal direction. The mounting base 233 can be driven by a linear drive structure or manually driven by a slide rail. The pickup unit is located on the mounting base 233. The pickup unit's multi-directional movement is achieved through the superposition of horizontal and vertical movements. By controlling the vertical height, it can be compatible with various compressor models of different heights.

[0057] In some embodiments, the support base 232 is provided with a plurality of mating holes 2321 arranged at intervals in the horizontal direction, and the mounting base 233 can be selectively mounted on at least some of the mating holes 2321 by means of screws; that is, according to the installation position of the compressor 200 and the compressor 200 of different specifications, the position of the mounting base 233 on the support base 232 is reasonably selected to realize the adjustment of the mounting base 233 relative to the support base 232. In this embodiment, the support base 232 is an elongated structure, with a plurality of mating holes 2321 arranged along the length of the support base 232, and a through hole is correspondingly provided on the side end of the mounting base 233 so that the screws can pass through and engage.

[0058] In some embodiments, the mounting base 233 is further provided with a pushing part 234. The pushing part 234 is movably mounted to the mounting base 233 in the horizontal direction and is spaced vertically from the picking part. During its movement, the pushing part 234 contacts the detection element 21 and causes the detection element 21 to move toward the compressor 200. It should be understood that the pushing part 234 can be integrated with the detection element 21 or can be independent of the detection element 21. Specifically, the pushing part 234 is driven by a cylinder to move a pushing block, thereby achieving cooperation with the mounting bracket 211 of the detection element 21.

[0059] When the pickup part consists of two clamping members 231, the two clamping members 231 are located above the pushing part 234 and are respectively located on opposite sides of the pushing part 234.

[0060] By using an accelerometer in conjunction with automated clamping, automatic pushing, and controllable adsorption, the vibration data of the compressor can be collected and analyzed.

[0061] In addition, the mounting base 233 is provided with at least one arc-shaped hole 2331; the extending direction of the arc-shaped hole 2331 intersects the extending direction of the mounting base, that is, the arc-shaped hole 2331 is inclined relative to the mounting base 233. The pickup part is slidably mounted along the extending direction of the arc-shaped hole 2331 so that it can rotate relative to the mounting base 233. The pickup part moves along the arc-shaped trajectory of the arc-shaped hole 2331, thereby allowing for angle adjustment while it is being mounted, thus changing the orientation of the detection element 21 and increasing the adjustable range of the detection element 21.

[0062] In other embodiments, a rotating mechanism, such as a motor, may be provided between the pickup unit and the mounting base 233 to drive the pickup unit to rotate and adjust.

[0063] To ensure stability, the mounting base 233 is provided with two arc-shaped holes 2331. The two arc-shaped holes 2331 are concentrically arranged, with one located on the periphery of the other. The pickup unit is hung and engaged through the two arc-shaped holes 2331, and can move simultaneously connected to the two arc-shaped holes 2331.

[0064] The abnormal sound detection device 100 can be directly connected to the production line. In this case, the carrier 1 can be matched with the corresponding conveying structure of the production line, or it can be set on the side of the production line.

[0065] To increase testing efficiency, multiple compressors 200 can be installed on the carrier 1 at the same time. At this time, multiple detection components 21 and transfer components 23 are set accordingly. The specifications of the multiple compressors 200 on the carrier 1 can be the same or different, that is, the height of the multiple pickup parts can be the same or different, and the angle of the multiple detection components can be the same or different.

[0066] For example, two compressors 200 arranged in parallel are placed on a support 1, and two transfer components 23 are located on opposite sides of the two compressors, away from each other, with the two pickup units arranged opposite each other.

[0067] For example, two compressors 200 are arranged in parallel, with one transfer component 23 located on the side of one compressor away from the other, and the other transfer component 23 located between the two compressors, in which case the two pickup units face the same direction.

[0068] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An abnormal noise detection device for detecting abnormal noise in a compressor, characterized in that, The abnormal noise detection device includes: The support base is used to support the compressor to be tested; An abnormal noise detection device includes a detection element that is movable vertically and horizontally, the detection element being used to acquire vibration data of a compressor operating on the support; and... A transfer assembly includes a movably disposed pickup unit, the pickup unit having a pickup state that is fixed relative to the detection element to drive the detection element to move, and a retraction state that is separated from the detection element when the detection element is fixed relative to the compressor under test.

2. The abnormal noise detection device as described in claim 1, characterized in that, The detection element is provided with an adsorption part, which is used to adsorb onto the surface of the compressor. In the retraction state, the pickup unit releases the detection element so that the detection element is fixed relative to the compressor by the adsorption unit.

3. The abnormal noise detection device as described in claim 2, characterized in that, The adsorption section includes an electromagnet.

4. The abnormal noise detection device as described in any one of claims 1 to 3, characterized in that, The pickup unit includes two clamping members spaced apart in the horizontal direction. The two clamping members have a travel distance that allows them to move closer to or further away from each other. The two clamping members are used to clamp or release the detection element together.

5. The abnormal noise detection device as described in claim 4, characterized in that, The detection component includes a mounting bracket and a sensor fixed to the mounting bracket, wherein two clearance holes are formed on the mounting bracket at intervals in the horizontal direction; The two clamping members are inserted into the two clearance holes.

6. The abnormal noise detection device as described in claim 5, characterized in that, Each of the aforementioned clearance holes extends horizontally, and the dimensions of the two clearance holes in the vertical direction gradually increase in the direction away from each other.

7. The abnormal noise detection device as described in claim 1, characterized in that, The transfer assembly further includes: A support base is fixed to the bearing base and is movable in the vertical direction; A mounting base is provided on the support base, and the relative position of the mounting base and the support base is adjustable in the horizontal direction; The pickup unit is located on the mounting base.

8. The abnormal noise detection device as described in claim 7, characterized in that, The support base has multiple mating holes arranged at intervals along a horizontal direction, and the mounting base can be selectively mounted on at least some of the mating holes by means of screws; and / or, The mounting base is also provided with a pushing part, which is movably mounted to the mounting base in the horizontal direction and spaced apart from the picking part in the vertical direction. During the movement, the pushing part contacts the detection element and causes the detection element to move toward the compressor.

9. The abnormal sound detection device as described in claim 7, characterized in that, The mounting base is provided with at least one arc-shaped hole, and the extending direction of the arc-shaped hole intersects with the extending direction of the mounting base; The pickup part is slidably mounted along the extension direction of the arc-shaped hole so that it can rotate relative to the mounting base.

10. The abnormal noise detection device as described in claim 1, characterized in that, The detection component includes: The mounting bracket is capable of moving vertically and swinging horizontally; and, An accelerometer is fixedly mounted to the mounting bracket.

11. The abnormal noise detection device as described in claim 10, characterized in that, The mounting bracket is provided with an adsorption part that is spaced apart from the acceleration sensor, and the adsorption part is used to adsorb onto the surface of the compressor.

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