Noise detector for reduction gearbox

Abstract

The utility model provides a noise detector for a reduction gearbox, and belongs to the field of detection equipment. The problem that working noise of an existing reduction gearbox is detected and judged manually is solved. The reduction gearbox noise detection machine comprises a control system, a rack, a movable tool and a positioning mechanism, a noise detection mechanism is arranged in the rack, a driving mechanism is arranged in the rack, a lifting sliding table is arranged on the rack, the driving mechanism comprises a driving shaft and a driving motor, the noise detection mechanism comprises a vibration sensor and an acceleration sensor, and the vibration sensor and the acceleration sensor are arranged on the rack. The vibration sensor and the acceleration sensor are both connected with the control system and used for detecting data transmission, and the vibration sensor and the acceleration sensor are both connected to the rack through telescopic cables. The device has the advantages of high detection efficiency and high detection precision.

Description

Technical Field

[0001] The utility model belongs to the field of detection equipment, relates to a detection machine, and particularly relates to a reduction box noise detection machine. Background Art

[0002] Gear reducers are common equipment components for power transmission. They can change the corresponding torque and speed parameters of output power when input power is inconvenient. After the gear reducers are assembled into finished products, a series of tests are required to ensure the quality, including the noise test of gear reducers. If the gear reducers operate normally, the noise generated is not likely to be too loud. Otherwise, it indicates that the gear reducers have problems such as poor gear meshing.

[0003] However, the existing noise detection of gear reducers is all placed in a soundproof box. The gear reducer is started and manually judged whether the noise is too loud. During the detection, the manual operator needs to keep observing the noise value for a long period of time, which is easy to become tired, causing the manual operator to miss the possible excessive noise value, resulting in inaccurate gear reducer noise detection results. Summary of the invention

[0004] The purpose of the utility model is to provide a reduction box noise detection machine to solve the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: a reduction gearbox noise detection machine, characterized in that it includes a control system, a frame, a movable tooling for the reduction gearbox to be installed and movable, and a positioning mechanism that cooperates with the positioning of the movable tooling, and a noise detection mechanism for reducing gearbox noise detection is arranged in the frame;

[0006] A driving mechanism is arranged in the frame and can move axially and is used to drive the reduction box to work;

[0007] The frame is provided with a lifting slide for driving the driving mechanism and the noise detection mechanism to move;

[0008] The driving mechanism includes a driving shaft that automatically docks with and drives the worm shaft in the reduction box and a driving motor that drives the driving shaft to rotate;

[0009] The noise detection mechanism includes a vibration sensor for detecting vibration when the reduction box is working and an acceleration sensor for detecting torque acceleration when the reduction box is working;

[0010] The vibration sensor and the acceleration sensor are both connected to the control system and perform detection data transmission. The vibration sensor and the acceleration sensor are both connected to the frame through a telescopic cable.

[0011] In the above-mentioned reduction gearbox noise detector, blockers for blocking and limiting the reduction gearbox are arranged on both sides of the positioning mechanism.

[0012] In the above-mentioned speed reducer noise detector, the frame is also provided with a human-machine display screen for data display and manual operation. The human-machine display screen is used to display the speed reducer vibration data and acceleration data and judge whether they are qualified.

[0013] In the above-mentioned reduction gearbox noise detector, the telescopic cables are respectively connected to the vibration sensor and the acceleration sensor, and are connected to the human-machine display screen in the control system.

[0014] In the above-mentioned speed reducer noise detector, the positioning mechanism, noise detection mechanism, driving mechanism and lifting slide are controlled and coordinated by the control system to drive the speed reducer and detect its noise.

[0015] Compared with the existing technology, the reducer noise detection machine has a reasonable structural design. By coordinating the driving mechanism and the noise detection mechanism, it can effectively realize the noise detection of the reducer when it is working. The control system and the human-machine display screen analyze the data to determine whether it is qualified, which greatly reduces the labor of manual inspection and improves the inspection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the reduction gearbox noise detection machine.

[0017] Figure 2 It is a side view structural diagram of the reduction gearbox noise detection machine.

[0018] In the figure, 1, frame; 2, lifting slide; 3, positioning mechanism; 4, driving shaft; 5, driving motor; 6, vibration sensor; 7, acceleration sensor; 8, blocker. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2As shown, the noise detector of the reduction gearbox includes a control system, a frame 1, a movable tool for installing the reduction gearbox, and a positioning mechanism 3 for positioning with the mobile tool. A noise detection mechanism for detecting the noise of the reduction gearbox is arranged in the frame 1, and a driving mechanism that can move axially and is used to drive the reduction gearbox to work is arranged in the frame 1. A lifting slide 2 for driving the driving mechanism and the noise detection mechanism to move is arranged on the frame 1. The driving mechanism includes a driving shaft 4 that automatically docks with and drives the worm shaft in the reduction gearbox and a driving motor 5 for driving the driving shaft 4 to rotate. The noise detection mechanism includes a vibration sensor 6 for detecting vibration when the reduction gearbox is working and an acceleration sensor 7 for detecting torque acceleration when the reduction gearbox is working. The vibration sensor 6 and the acceleration sensor 7 are both connected to the control system and transmit detection data. The vibration sensor 6 and the acceleration sensor 7 are both connected to the frame 1 through a telescopic cable.

[0021] The structure is reasonably designed, and the coordination of the driving mechanism and the noise detection mechanism can effectively realize the noise detection of the reduction box when it is working. The control system and the human-machine display screen analyze the data to determine whether it is qualified, which greatly reduces the labor of manual inspection and improves the inspection efficiency and accuracy.

[0022] The vibration sensor 6 and the acceleration sensor 7 can detect noise. The vibration sensor 6 and the acceleration sensor 7 are typical parameters for measuring sound vibrations, measuring acceleration and sound pressure level respectively. Sound and vibration are essentially transmitted through different media, and there is a close connection between them. Vibration is the mechanical oscillation motion of a massive object near a balance point, while sound is the sound wave generated by the vibration propagating through a medium (such as air). Therefore, measuring sound and vibration is similar in nature. Sound vibration analysis generally includes confirming and checking frequency components, which is usually achieved by converting the signal from the time domain to the frequency domain, especially using Fourier analysis, which involves decibel (dB) amplitude and is related to the phase difference φ (degrees or radians) of each frequency component in the signal. Therefore, the vibration sensor 6 and the acceleration sensor 7 can detect noise.

[0023] Equipment operation steps

[0024] 1. The mobile tooling pallet enters the workstation, the pneumatic blocker 8 blocks the limit position, the photoelectric switch confirms the presence of the workpiece (if there is no tooling, the mobile tooling pallet is automatically released), and the positioning mechanism 3 positions and lifts the mobile tooling;

[0025] 2. Fix the detection heads of the vibration sensor 6 and the acceleration sensor 7 on the reduction box manually, turn the hand switch, the lifting slide 2 drives the driving mechanism downward, the driving shaft 4 automatically docks with the worm shaft in the reduction box, and the driving motor 5 drives the reducer at a speed of 1400 rpm, and the forward and reverse rotations are 10S each (the time can be set). The detection results are displayed on the human-machine display screen;

[0026] 3. After the test is completed, all mechanisms return to their original positions, the detection heads of the vibration sensor 6 and the acceleration sensor 7 are manually removed, and all mechanisms return to their original positions.

[0027] To elaborate further, in order to facilitate the blocking and limiting of the movable tooling, blockers 8 for blocking and limiting the reduction gearbox are provided on both sides of the positioning mechanism 3 .

[0028] To further elaborate, in order to realize intelligent analysis of the test data and judge whether it is qualified, the frame 1 is also provided with a human-machine display screen for data display and manual operation. The human-machine display screen is used to display the reducer vibration data and acceleration data and judge whether it is qualified. The telescopic cables are respectively connected to the vibration sensor 6 and the acceleration sensor 7, and are connected to the human-machine display screen in the control system.

[0029] To further elaborate, in order to improve automated operation and reduce manual labor, the positioning mechanism 3, the noise detection mechanism, the driving mechanism and the lifting slide 2 are controlled and coordinated by the control system to drive the reduction box and detect its noise.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0031] Although the terms such as frame 1, lifting slide 2, positioning mechanism 3, driving shaft 4, driving motor 5, vibration sensor 6, acceleration sensor 7, acceleration sensor 7, and blocker 8 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. Gearbox noise detection machine, characterized in that: It comprises a control system, a frame (1), a movable tool for mounting a reduction gearbox, and a positioning mechanism (3) cooperating with the movable tool for positioning. A noise detection mechanism for detecting noise of the reduction gearbox is arranged in the frame (1); A driving mechanism which is axially movable and is used to drive the reduction box is arranged in the frame (1); The frame (1) is provided with a lifting slide (2) for driving the driving mechanism and the noise detection mechanism to move; The driving mechanism comprises a driving shaft (4) which automatically docks with and drives the worm shaft in the reduction box, and a driving motor (5) which is used to drive the driving shaft (4) to rotate. The noise detection mechanism comprises a vibration sensor (6) for detecting vibration when the reduction box is working and an acceleration sensor (7) for detecting torque acceleration when the reduction box is working. The vibration sensor (6) and the acceleration sensor (7) are both connected to the control system and perform detection data transmission. The vibration sensor (6) and the acceleration sensor (7) are both connected to the frame (1) via a telescopic cable.

2. The reduction gearbox noise detector according to claim 1, characterized in that: Blockers (8) for blocking and limiting the reduction gearbox are arranged on both sides of the positioning mechanism (3).

3. The reduction gearbox noise detector according to claim 1, characterized in that: The frame (1) is also provided with a human-machine display screen for data display and facilitating manual operation, and the human-machine display screen is used to display the vibration data and acceleration data of the reducer and judge whether they are qualified.

4. The reduction gearbox noise detector according to claim 3, characterized in that: The telescopic cables are respectively connected to the vibration sensor (6) and the acceleration sensor (7), and are connected to a human-machine display screen in the control system.

5. The reduction gearbox noise detector according to claim 1, characterized in that: The positioning mechanism (3), the noise detection mechanism, the driving mechanism and the lifting slide (2) are controlled and coordinated by the control system to drive the reduction box and detect its noise.

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