Noise testing system

Abstract

The present invention relates to the technical field of mechanical detection, and particularly relates to a noise testing system. The noise testing system includes an equipment bracket, a noise testing device, a main conveying component, a support frame, and an auxiliary conveying component. A speed sensor and a noise measurement unit are provided on the equipment bracket; the noise testing device is communicatively connected to the speed sensor and the noise measurement unit; the main conveying component is used to carry a floor cleaning robot; the support frame is used to support the main conveying component, and the auxiliary conveying component is in contact with the main conveying component. By setting the main conveying component, the floor cleaning robot can be kept within the equipment bracket when moving, the noise testing device is used to conduct noise testing on the floor cleaning robot, and at the same time, the support frame supports the floor cleaning robot on the main conveying component, and the auxiliary conveying component assists in driving the main conveying component to start or convey. Thus, the floor cleaning robot moves to a preset position and completes noise detection at the preset position, improving the accuracy of noise testing for the floor cleaning robot.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical detection, and particularly to a noise test system. Background Art

[0002] In the household appliance industry, the noise level during the operation of a floor cleaning robot affects the user experience. Therefore, the floor cleaning robot needs to undergo noise detection to control the noise within the household appliance standard range. Since the noise of the floor cleaning robot is generated when it moves during operation, and the sound level meter used for noise detection needs to be connected to a noise test device for testing at a fixed position, multiple sound level meters need to be arranged along the movement trajectory of the floor cleaning robot. The floor cleaning robot passes through the corresponding noise test points for noise testing. This testing method cannot monitor the real-time noise change process of the floor cleaning robot during operation and cannot obtain the maximum value of the noise change during the operation of the floor cleaning robot.

[0003] In order to monitor the real-time noise change process of the floor cleaning robot during movement, a conveying device is set to cooperate with the floor cleaning robot so that the floor cleaning robot moves on the conveying device to detect the noise during its operation. However, during the transmission process between the conveying device and the floor cleaning robot, there is a transmission error, which causes a change in the position of the floor cleaning robot relative to the ground, resulting in the failure of noise testing. Summary of the Invention

[0004] The present invention provides a noise test system to solve the defects in the noise test of the floor cleaning robot in the prior art and improve the accuracy of the noise test of the floor cleaning robot.

[0005] The present invention provides a noise test system for testing the running noise of a floor cleaning robot, and the noise test system includes:

[0006] An equipment support on which a plurality of speed sensors and a plurality of noise measurement units are provided;

[0007] A noise test device communicatively connected to the speed sensors and the noise measurement units;

[0008] A main conveying component for carrying the floor cleaning robot, and the main conveying component passes through the equipment support;

[0009] A support frame provided below the main conveying component to support the main conveying component, and an installation groove is provided on the support frame;

[0010] An auxiliary conveying component provided in the installation groove and in contact with the main conveying component.

[0011] A noise testing system provided by the present invention, the auxiliary conveying assembly includes:

[0012] An auxiliary driving assembly, the auxiliary driving assembly is connected to the inner wall of the installation groove;

[0013] An auxiliary conveying part, the auxiliary driving assembly drives the auxiliary conveying part to move, and the auxiliary conveying part contacts the main conveying assembly.

[0014] A noise testing system provided by the present invention, the surface where the auxiliary conveying part contacts the main conveying assembly is a first friction surface, the surface where the main conveying assembly contacts the auxiliary conveying part is a second friction surface, and the first friction surface and the second friction surface contact for frictional transmission.

[0015] A noise testing system provided by the present invention, the auxiliary conveying assembly is a plurality of rolling bodies, the plurality of rolling bodies are arranged in the installation groove, and each rolling body contacts the main conveying assembly.

[0016] A noise testing system provided by the present invention, the main conveying assembly includes:

[0017] A first conveying shaft and a second conveying shaft, the support frame is located between the first conveying shaft and the second conveying shaft;

[0018] A conveying belt, the conveying belt is threaded through the equipment support frame, one end of the conveying belt is connected to the first conveying shaft, and the conveying belt is adapted to be wound around the first conveying shaft, the other end of the conveying belt is connected to the second conveying shaft, and the conveying belt is adapted to be wound around the second conveying shaft;

[0019] A first driving motor and a second driving motor, the first driving motor is connected to the first conveying shaft to drive the first conveying shaft to rotate, and the second driving motor is connected to the second conveying shaft to drive the second conveying shaft to rotate.

[0020] A noise testing system provided by the present invention, both the first conveying shaft and the second conveying shaft are silent rotating shafts;

[0021] Both the first driving motor and the second driving motor are silent driving motors.

[0022] A noise testing system provided by the present invention, the equipment support frame includes a support beam and a connecting beam, the plurality of support beams are detachably connected by the connecting beam, and the noise measurement unit is movably arranged on the connecting beam.

[0023] A noise testing system provided by the present invention,

[0024] Both the support beam and the connecting beam are provided with guide rail structures;

[0025] The equipment support includes:

[0026] A connecting member, which is adapted to be slidably connected to the guide rail structure, and one end of the noise measurement unit and both ends of the connecting beam are connected to the connecting member;

[0027] A positioning block, which is detachably arranged inside the guide rail structure.

[0028] In a noise testing system provided by the present invention, the positioning block is a magnetic attracting member.

[0029] In a noise testing system provided by the present invention, the noise measurement unit includes a protective cover with openings at both ends. The opening diameter at the first end of the protective cover is smaller than the opening diameter at the second end of the protective cover. The first end is connected to the noise measurement unit, and the opening at the second end faces the floor sweeping robot.

[0030] In the noise testing system according to an embodiment of the present invention, by providing the main transmission assembly, the floor sweeping robot can be kept inside the equipment support when moving. The floor sweeping robot is subjected to noise testing by the noise testing device. At the same time, the support frame supports the floor sweeping robot on the main transmission assembly, and the auxiliary transmission assembly assists in driving the main transmission assembly to start or transmit. Thus, the floor sweeping robot moves to a preset position and completes noise detection at the preset position, improving the accuracy of noise testing for the floor sweeping robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 is a schematic structural diagram of the noise testing system provided by the present invention, where the floor sweeping robot is at the central position of the equipment support;

[0033] Figure 2 is a partial cross-sectional view of the noise testing system provided by the present invention;

[0034] Figure 3 is a partial cross-sectional view of the connecting beam provided by the present invention.

[0035] Reference numerals:

[0036] 100, noise testing system;

[0037] 110. Equipment support; 111. Noise measurement unit; 120. Support beam; 130. Connecting beam; 140. Connector; 150. Protective cover;

[0038] 200. Main conveyor assembly; 210. First conveyor shaft; 211. Second conveyor shaft; 220. Conveyor belt; 230. First drive motor; 231. Second drive motor;

[0039] 300. Support frame; 310. Installation groove;

[0040] 400. Auxiliary conveyor assembly; 410. Auxiliary drive assembly; 420. Auxiliary conveyor section;

[0041] 500. Floor cleaning robot. Detailed implementation manner

[0042] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] The following is combined with Figures 1 - 3 Describe the noise test system of the embodiments of the present invention, which is used to test the running noise of the floor cleaning robot. Here, the floor cleaning robot can be a floor washing robot, a vacuum cleaner, etc.

[0044] Combined with Figure 1 As shown, the noise test system 100 according to the embodiments of the present invention includes an equipment support 110, a noise test device, a main conveyor assembly 200, a support frame 300, and an auxiliary conveyor assembly 400.

[0045] Specifically, a plurality of speed sensors and a plurality of noise measurement units 111 are provided on the equipment support 110. The speed sensors are used to monitor the speed of the floor cleaning robot 500 relative to the ground. For example, when the floor cleaning robot 500 enters the interior of the equipment support 110, the plurality of speed sensors can monitor the speed value of the floor cleaning robot 500; when the floor cleaning robot 500 moves to the central position of the equipment support 110, the plurality of speed sensors can monitor the speed value of the floor cleaning robot 500.

[0046] The noise measurement unit 111 is used to detect the noise value of the floor cleaning robot 500, and the floor cleaning robot 500 can perform noise detection inside the device bracket 110. Multiple noise measurement units 111 can meet the noise test requirements of the floor cleaning robot 500, that is, multiple test positions can be provided around the floor cleaning robot 500, and multiple noise measurement units 111 can be set at the corresponding test positions.

[0047] Combined Figure 1 As shown, the main conveyor component 200 can be used to carry the floor cleaning robot 500. The main conveyor component 200 passes through the device bracket 110, and the floor cleaning robot 500 performs noise detection on the main conveyor component 200 and inside the device bracket 110.

[0048] It should be noted that in the initial stage of noise detection of the floor cleaning robot 500, the floor cleaning robot 500 can be placed on the main conveyor component 200, and under the conveying action at the main conveyor component 200, the floor cleaning robot 500 moves towards the device bracket 110; when the floor cleaning robot 500 moves to the central position of the device bracket 110, the floor cleaning robot 500 is made stationary relative to the ground. Here it should be noted that when the floor cleaning robot 500 moves to the central position of the device bracket 110, the speed of the floor cleaning robot 500 itself in motion is the same in magnitude and opposite in direction to the conveying speed of the main conveyor component 200, whereby the floor cleaning robot 500 can be made stationary relative to the ground.

[0049] Here, it also should be noted that the conveying direction of the main conveyor component 200 is opposite to the moving direction of the floor cleaning robot 500, whereby the moving speed of the floor cleaning robot 500 can be slowed down by increasing the conveying speed of the main conveyor component 200, so that the floor cleaning robot 500 can remain stationary relative to the ground, and further the floor cleaning robot 500 can stably perform noise detection inside the device bracket 110.

[0050] To facilitate the installation of the device bracket 110, in some examples, the device bracket 110 can be set on the ground or suspended from the ceiling board. When the floor cleaning robot 500 moves into the device bracket 110, the speed sensor on the device bracket 110 will monitor the speed at which the floor cleaning robot 500 passes through the device bracket 110, and the speed sensor controls the main conveyor component 200 to start, so that the floor cleaning robot 500 can not only move to a preset position (for example, the central position of the device bracket 110), but also the floor cleaning robot 500 can remain stationary relative to the ground after reaching the preset position. That is to say, under the monitoring of the speed sensor, the floor cleaning robot 500 can smoothly move to the preset position of the device bracket 110, and the floor cleaning robot 500 can also remain stationary relative to the ground after reaching the central position.

[0051] It can be understood that when the floor cleaning robot 500 reaches the preset position and can remain stationary relative to the ground, the speed of the floor cleaning robot 500 is within the speed range required by the speed sensor, and the speed sensor triggers the noise testing device, and the noise testing device starts to detect the noise of the floor cleaning robot 500. Here, the speed range required by the speed sensor is not specifically limited, and the speed range set by the speed sensor is specifically determined according to the volume and moving speed of the floor cleaning robot 500.

[0052] The noise testing device is communicatively connected to the speed sensor and the noise measurement unit 111. The noise testing device can convert the noise signal measured by the noise measurement unit 111 into a visual signal for the tester to observe and use. Here, the noise measurement unit 111 can be a sound level meter. After the noise testing device has completed collecting the working noise of the floor cleaning robot 500, the tester can obtain the noise change value (such as the maximum noise change value) that occurs during the operation of the floor cleaning robot 500.

[0053] The support frame 300 is provided below the main transmission assembly 200 to support the main transmission assembly 200, and an installation groove 310 is provided on the support frame 300. Figure 1 As shown, the floor cleaning robot 500 is placed on the main transmission assembly 200. Due to the self-gravity of the floor cleaning robot 500 and the reverse movement of the floor cleaning robot 500 relative to the main transmission assembly 200, the main transmission assembly 200 may be deformed or the transmission of the main transmission assembly 200 may fail. By providing the support frame 300 below the main transmission assembly 200, the floor cleaning robot 500 can be supported, reducing the downward force of the floor cleaning robot 500 on the main transmission assembly 200 and preventing the main transmission assembly 200 from being excessively deformed resulting in the failure of the transmission function.

[0054] As shown in Figure 1 and Figure 2 shown, the auxiliary transmission assembly 400 is provided in the installation groove 310, and the auxiliary transmission assembly 400 is in contact with the main transmission assembly 200. It should be noted that the floor cleaning robot 500 is in contact with the main transmission assembly 200. The auxiliary transmission assembly 400 can provide auxiliary transmission power for the main transmission assembly 200 through friction, enabling the floor cleaning robot 500 to smoothly move to the center position of the equipment support 110 and enabling the floor cleaning robot 500 to remain stationary relative to the ground at the center position of the equipment support 110.

[0055] At the same time, the auxiliary transmission assembly 400 can assist in driving the main transmission assembly 200 to start, reducing the starting load of the main transmission assembly 200. In this way, the speed sensor can control the main transmission assembly 200 to start more quickly, and the main transmission assembly 200 can more easily prevent the floor cleaning robot 500 from moving, enabling the floor cleaning robot 500 to be tested within the equipment support 110.

[0056] According to the noise testing system 100 of an embodiment of the present invention, by setting the main transmission component 200, when the floor cleaning robot 500 moves, it can be kept within the device bracket 110. The floor cleaning robot 500 is subjected to noise testing by the noise testing device. Meanwhile, the support frame 300 supports the floor cleaning robot 500 on the main transmission component 200, and the auxiliary transmission component 400 assists in driving the main transmission component 200 to start or transmit. Thus, the floor cleaning robot 500 moves to a preset position and completes noise detection at the preset position, improving the accuracy of noise testing of the floor cleaning robot 500.

[0057] In some examples, the speed sensor includes a first monitoring end or a second monitoring end. When the floor cleaning robot 500 moves towards the speed sensor, the floor cleaning robot 500 is in a forward movement state; when the floor cleaning robot 500 passes by the speed sensor, the speed sensor first monitors the speed value of the floor cleaning robot 500. Specifically, the first monitoring end first monitors the speed value of the floor cleaning robot 500, and the second monitoring end then monitors the speed value of the floor cleaning robot 500.

[0058] When the first monitoring end first monitors the speed value of the floor cleaning robot 500 and the second monitoring end then monitors the speed value of the floor cleaning robot 500, it can be determined that the speed of the floor cleaning robot 500 is a positive speed value. And if the positive speed value is not within the speed range required by the speed sensor, it is further determined that the positive speed value is greater than the speed range required by the speed sensor, and the speed sensor then controls the main transmission component 200 to increase its transmission speed.

[0059] It should be noted that after the speed sensor first monitors the speed of the floor cleaning robot 500, it will control the main transmission component 200 to start transmission. During the start-up process, the floor cleaning robot 500 will still move forward. When the transmission speed of the main transmission component 200 is greater than the moving speed of the floor cleaning robot 500, and after a period of time, the floor cleaning robot 500 will change from a forward movement state relative to the ground to a stationary state, and then to a backward movement state relative to the ground. That is, after the floor cleaning robot 500 first passes by the speed sensor, the floor cleaning robot 500 will move towards the direction of the speed sensor again. The speed sensor will monitor the speed value of the floor cleaning robot 500 for the second time. Specifically, the second monitoring end of the speed sensor first monitors the speed value of the floor cleaning robot 500, and the first monitoring end then monitors the speed value of the floor cleaning robot 500.

[0060] When the second monitoring end first detects the speed value of the floor cleaning robot 500 and the first monitoring end then detects the speed value of the floor cleaning robot 500, it can be determined that the speed of the floor cleaning robot 500 is a reverse speed value. And if the reverse speed value is not within the speed range required by the speed sensor, it is further determined that the reverse speed value is less than the speed range required by the speed sensor, and the speed sensor controls the main transmission component 200 to slow down its transmission speed.

[0061] When the forward speed value or the reverse speed value is within the speed range required by the speed sensor, the speed sensor controls the transmission speed of the main transmission component 200 and sets the transmission speed to the speed value of the floor cleaning robot 500 detected by the speed sensor for the first time; when the moving speed of the floor cleaning robot 500 is within the speed range required by the speed sensor for a period of time, the noise test device is controlled to start noise detection on the floor cleaning robot 500.

[0062] According to some embodiments of the present invention, in combination with Figure 2 As shown, the auxiliary transmission component 400 includes an auxiliary driving component 410 and an auxiliary transmission part 420. The auxiliary driving component 410 is connected to the inner wall of the installation groove 310. The auxiliary driving component 410 drives the auxiliary transmission part 420 to move, and the auxiliary transmission part 420 contacts the main transmission component 200. It can be understood that the moving direction of the auxiliary driving component 410 driving the auxiliary transmission part 420 is the transmission direction of the main transmission component 200, so as to assist the main transmission component 200 to start and make the main transmission component 200 reach the required transmission speed faster. In some examples, the auxiliary transmission component 400 can be a handwheel, the auxiliary driving component 410 is the driving part of the handwheel, the auxiliary transmission part 420 is the rotating part of the handwheel, and the driving part of the handwheel can be arranged outside the installation groove 310, so that the user can manually drive the driving part of the handwheel to rotate, and the rotating part of the handwheel can assist in driving the main transmission component 200 to start.

[0063] According to some embodiments of the present invention, the surface of the auxiliary transmission part 420 in contact with the main transmission component 200 is the first friction surface, and the surface of the main transmission component 200 in contact with the auxiliary transmission part 420 is the second friction surface. The first friction surface and the second friction surface are in contact for frictional transmission. It can be understood that the direction of the frictional force given by the auxiliary transmission part 420 to the main transmission component 200 is the transmission direction of the main transmission component 200. For the auxiliary transmission component 400 which is a component driven by an external force, a material layer with a larger friction coefficient can be set on the first friction surface and the second friction surface, or a material layer with a larger friction coefficient can be set on the second friction surface. In this way, the mutual frictional force between the auxiliary transmission part 420 and the main transmission component 200 is greater. Under the drive of an external force on the auxiliary transmission part 420, the main transmission component 200 receives a greater frictional force, and it is easier for the auxiliary driving component 410 to drive the main transmission component 200 to start or transmit through the auxiliary transmission part 420.

[0064] According to some embodiments of the present invention, in combination with Figure 2 As shown, the auxiliary conveying assembly 400 is a plurality of rolling elements, and the plurality of rolling elements are arranged in the installation groove 310, and each rolling element is in contact with the main conveying assembly 200. The plurality of rolling elements are arranged in the installation groove 310, and the installation groove 310 is arranged at both ends of the equipment support 110. In this way, while the plurality of rolling elements can support the floor sweeping robot 500 on the main conveying assembly 200, they can also assist in driving the main conveying assembly 200 to move in the opposite direction of the floor sweeping robot 500.

[0065] In some examples, the rolling element can be a sphere or a cylinder. It can be understood that for the auxiliary conveying assembly 400 to be a self-driven assembly (the self-driven assembly is an assembly in which the auxiliary conveying assembly 400 is not driven by an external force), it is necessary to drive the main conveying assembly 200 and also minimize friction to prevent the mutual friction force between the rolling element and the main conveying assembly 200 from being too large, increasing the starting load of the main conveying assembly 200. By setting the rolling element as a sphere or a cylinder, the contact friction between the rolling element and the main conveying assembly 200 is rolling friction. While retaining the friction force, the contact area between the auxiliary conveying assembly 400 and the main conveying assembly 200 is reduced, making it easier for the main conveying assembly 200 to start or convey.

[0066] According to some embodiments of the present invention, in combination with Figure 1 As shown, the main conveying assembly 200 includes a first conveying shaft 210, a second conveying shaft 211, a conveying belt 220, a first driving motor 230, and a second driving motor 231. The support frame 300 is located between the first conveying shaft 210 and the second conveying shaft 211. The conveying belt 220 passes through the equipment support 110. One end of the conveying belt 220 is connected to the first conveying shaft 210, and the conveying belt 220 is adapted to be wound around the first conveying shaft 210. The other end of the conveying belt 220 is connected to the second conveying shaft 211, and the conveying belt 220 is adapted to be wound around the second conveying shaft 211.

[0067] The first conveying shaft 210 and the second conveying shaft 211 rotate in the same direction to drive the conveying belt 220 to move simultaneously. When the floor sweeping robot 500 is being detected, it is placed above the conveying belt 220, and the lower part of the belt is supported by the support frame 300. The conveying belt 220 can be replaced with a conveying belt 220 having different friction coefficients according to the working environment of the floor sweeping robot 500, and the noise testing system 100 collects the noise generated by the floor sweeping robot 500 in different working environments. The first driving motor 230 is connected to the first conveying shaft 210 to drive the first conveying shaft 210 to rotate, and the second driving motor 231 is connected to the second conveying shaft 211 to drive the second conveying shaft 211 to rotate. By setting two driving motors to drive the conveying belt 220 to move, the starting load of a single driving motor can be reduced.

[0068] According to some embodiments of the present invention, both the first transmission shaft 210 and the second transmission shaft 211 are silent rotating shafts, and both the first drive motor 230 and the second drive motor 231 are silent drive motors. The noise collected by the noise measurement unit 111 is the noise generated during the operation of the floor cleaning robot 500. By using both the first transmission shaft 210 and the second transmission shaft 211 as silent rotating shafts, and both the first drive motor 230 and the second drive motor 231 as silent drive motors, it is possible to prevent the noise generated by the transmission shaft and the drive motor from affecting the measurement result of the noise measurement unit 111, and improve the accuracy of the noise detection of the floor cleaning robot 500.

[0069] In some examples, in combination with Figure 1 as shown in Figure 1 FIG. is a schematic structural diagram of the noise test system 100 provided by the present invention, where the floor cleaning robot 500 is located at the center position of the device support 110. The speed test point of the speed sensor is the center position of the device support 110, that is, the noise measurement position where the floor cleaning robot 500 needs to reach on the device support 110. When the floor cleaning robot 500 passes through the center position, the speed sensor can control the rotation speeds of the first drive motor 230 and the second drive motor 231 according to the monitored speed of the floor cleaning robot 500 passing through the device support 110, thereby controlling the transmission speed of the transmission belt 220, so that the floor cleaning robot 500 is stationary relative to the ground and stationary at the center position relative to the ground. When the speed of the floor cleaning robot 500 at the center position is within the speed range required by the speed sensor, the speed sensor controls the noise measurement unit 111 to start the noise test.

[0070] According to some embodiments of the present invention, in combination with Figure 1 as shown in

[0071] By adjusting the distance between the connecting beam 130 and the ground, the distance in the height direction between the noise measurement unit 111 and the floor cleaning robot 500 can be adjusted; by movably arranging the noise measurement unit 111 on the connecting beam 130, the distance in the moving direction between the noise measurement unit 111 and the floor cleaning robot 500 can be adjusted; by controlling the distance between the plurality of support beams 120, the distance in the lateral direction between the noise measurement unit 111 and the floor cleaning robot 500 can be adjusted. Thus, the noise measurement unit 111 changes the test position of the noise measurement unit 111 according to the actual test requirements of the floor cleaning robot 500.

[0072] According to some embodiments of the present invention, in combination with Figure 1 and Figure 3 As shown, both the support beam 120 and the connecting beam 130 are provided with a guide rail structure, and the device bracket 110 further includes a connecting member 140, and the connecting member 140 is adapted to move along the guide rail structure. One end of the noise measurement unit 111 and both ends of the connecting beam 130 are connected to the connecting member 140, and the connecting beam 130 can vertically move in the guide rail structure of the support beam 120 through the connecting member 140, and the noise measurement unit 111 can horizontally move in the guide rail structure of the connecting beam 130 through the connecting member 140.

[0073] The device bracket 110 further includes a positioning block, and the positioning block is detachably arranged inside the guide rail structure, and the connecting member 140 of the connecting beam 130 is supported by the positioning block, so that the connecting beam 130 is fixed and parallel on the height plane required for testing by the noise measurement unit 111, so that the noise measurement unit 111 can be stably fixed at the noise test position required by the actual test of the floor cleaning robot 500. The positioning block can also support the connecting member 140 of the noise measurement unit 111 to prevent the noise measurement unit 111 from shifting in position due to vibration, resulting in errors in the noise test results.

[0074] According to some embodiments of the present invention, the positioning block can be a magnetic attracting member. For example, the positioning block is a permanent magnet, and the support beam 120 is a soft magnetic body. The positioning block can move in the guide rail structure of the support beam 120. When the positioning block moves to the position where the connecting beam 130 needs to be fixed, it is magnetically fixed inside the support beam 120. In some examples, the positioning block can be arranged outside the support beam 120, the connecting members 140 at both ends of the connecting beam 130 can be soft magnetic bodies, the support beam 120 is a non-magnetic body, and the positioning block magnetically attracts the connecting members 140 at both ends of the connecting beam 130 from the outside of the support beam 120 to fix the connecting beam 130 on the height plane required for testing by the noise measurement unit 111.

[0075] In some examples, a universal joint can be provided at one end of the noise measurement unit 111, and the universal joint is connected to the connecting member 140. In this way, when the noise measurement unit 111 is connected to the connecting beam 130, the orientation direction of the noise measurement unit 111 can be controlled by adjusting the universal joint, so that the noise measurement unit 111 faces the floor cleaning robot 500, improving the noise collection effect of the noise measurement unit 111.

[0076] In some examples, a pivot extension is provided between one end of the noise measurement unit 111 and the connecting member 140, and the pivot extension is pivotally connected to the connecting member 140. It should be noted that for a floor cleaning robot 500 with too small a volume, the noise measurement unit 111 will be provided in the circumferential direction at a distance of one meter from the floor cleaning robot 500. When the width of the main transmission component 200 is greater than two meters, the width of the connecting beam 130 needs to be set greater than the width of the main transmission component 200, so that part of the noise measurement unit 111 cannot be tested at the noise test position.

[0077] By providing a pivot extension on the noise measurement unit 111, the noise measurement unit 111 can further extend towards the floor cleaning robot 500. By pivotally connecting the pivot extension to the connecting member 140, the extension direction of the noise measurement unit 111 can be changed. Thus, the noise measurement unit 111 can extend to the noise test position for testing, and the noise test system 100 can meet the noise test requirements of the small-volume floor cleaning robot 500.

[0078] According to some embodiments of the present invention, in combination with Figure 3 As shown, the noise measurement unit 111 includes a protective cover 150. Both ends of the protective cover 150 are provided with openings. The opening diameter at the first end of the protective cover 150 is smaller than the opening diameter at the second end of the protective cover 150. The first end is connected to the noise measurement unit 111, and the opening at the second end faces the floor cleaning robot 500. The protective cover 150 is used to reduce the influence of external noise on the noise collection of the noise measurement unit 111. The external noise is non-artificial noise outside the equipment bracket 110, such as the noise of flying insects and the noise of mechanical wear inside the main transmission component 200, etc. The opening at the second end faces the floor cleaning robot 500, and the noise measurement unit 111 can centrally collect the noise emitted when the floor cleaning robot 500 works, making the test result of the noise measurement unit 111 more accurate.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A noise testing system, characterized in that, The noise test system is used to test the running noise of a moving floor cleaning robot, and the noise test system includes: A device bracket, on which a plurality of speed sensors and a plurality of noise measurement units are provided; A noise test device, which is communicatively connected to the speed sensors and the noise measurement units; A main transmission component, which is used to carry the floor cleaning robot, and the main transmission component passes through the device bracket; A support frame, which is arranged below the main transmission component to support the main transmission component, and an installation groove is provided on the support frame; An auxiliary transmission component, which is arranged in the installation groove, and the auxiliary transmission component contacts the main transmission component; The speed sensor is used to monitor the speed of the floor cleaning robot relative to the ground, and the speed sensor controls the main transmission component to start, so that the floor cleaning robot moves to a preset position and remains stationary relative to the ground.

2. The noise testing system according to claim 1, wherein The auxiliary transmission component includes: An auxiliary drive component, which is connected to the inner wall of the installation groove; An auxiliary transmission part, which is driven by the auxiliary drive component to move, and the auxiliary transmission part contacts the main transmission component.

3. The noise test system according to claim 2, characterized in that, The surface of the auxiliary transmission part in contact with the main transmission component is the first friction surface, and the surface of the main transmission component in contact with the auxiliary transmission part is the second friction surface, and the first friction surface and the second friction surface are in contact for frictional transmission.

4. The noise testing system according to claim 1, characterized in that, The auxiliary transmission component is a plurality of rolling bodies, and the plurality of rolling bodies are arranged in the installation groove, and each rolling body contacts the main transmission component.

5. The noise testing system according to claim 1, wherein The main transmission component includes: A first transmission shaft and a second transmission shaft, and the support frame is located between the first transmission shaft and the second transmission shaft; A transmission belt, which passes through the device bracket, one end of the transmission belt is connected to the first transmission shaft, and the transmission belt is adapted to be wound around the first transmission shaft, the other end of the transmission belt is connected to the second transmission shaft, and the transmission belt is adapted to be wound around the second transmission shaft; A first drive motor and a second drive motor, the first drive motor is connected to the first transmission shaft to drive the first transmission shaft to rotate, and the second drive motor is connected to the second transmission shaft to drive the second transmission shaft to rotate.

6. The noise testing system according to claim 5, characterized in that, Both the first transmission shaft and the second transmission shaft are silent rotating shafts; Both the first drive motor and the second drive motor are silent drive motors.

7. The noise testing system according to claim 1, wherein The device bracket includes support beams and connecting beams, and the plurality of support beams are detachably connected by the connecting beams, and the noise measurement units are movably arranged on the connecting beams.

8. The noise test system according to claim 7, wherein Both the support beam and the connecting beam are provided with rail structures; The device bracket includes: A connecting piece, which is adapted to move along the rail structure, and one end of the noise measurement unit and both ends of the connecting beam are connected to the connecting piece; A positioning block, which is detachably arranged inside the rail structure.

9. The noise testing system according to claim 8, wherein The positioning block is a magnetic part.

10. The noise testing system according to claim 1, wherein The noise measurement unit includes a protective cover. Both ends of the protective cover are provided with openings. The opening diameter at the first end of the protective cover is smaller than the opening diameter at the second end of the protective cover. The first end is connected to the noise measurement unit, and the opening at the second end faces the floor cleaning robot.

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