Noise detection equipment for speed reducer

Abstract

The utility model relates to a speed reducer noise detection device comprising a detection bench and a detection rod, the detection bench is provided with a station groove for placing a speed reducer to be detected, the front end of the detection rod is provided with an abutting joint matched with the position of the station groove, the detection bench is provided with a display bench and a support used for installing the detection rod, and the display bench is provided with a display screen. The tail end of the detection rod is provided with an elastic sheet, the elastic sheet vertically extends above the display stand, the bottom surface of the elastic sheet is aligned with the top surface of the display stand, shielding powder is laid above the display stand, and the position of the shielding powder is matched with that of the elastic sheet; the elastic sheet swings back and forth in the horizontal direction under the action of continuous vibration, the part, exposed out of the shielding powder, of the display stand is swept away, and according to the area of the exposed display stand, slight noise can be reduced through swinging of the elastic sheet; the display stand exposure area is easy to observe, so that a detector can easily judge whether the noise of the speed reducer exceeds the standard or not.

Description

Technical Field

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

[0002] A reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. When assembling the reducer, it is assembled on the reducer base through the cooperation of bearings, gears, and rotating shafts, and it is necessary to detect the noise of the gear position after assembly to avoid incomplete meshing caused by the gear not being installed in the correct position, which will exacerbate gear wear and generate noise during operation. However, when the reducer is just assembled, the noise generated by the gear operation is relatively slight. It requires the tester to hold the detection rod, with one end against the outer shell of the reducer and the other end against the ear, and transmit the noise of the reducer directly to the ear through the detection rod. The accuracy and credibility of the detection results are not high. Therefore, designing a reducer noise detection device that can reduce the difficulty of noise judgment and improve the accuracy has become an urgent technical problem to be solved. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a reducer noise detection device.

[0004] The technical solution of the present utility model is a reducer noise detection device, including a detection table and a detection rod. A working station groove for placing the reducer to be tested is provided on the detection table. The front end of the detection rod is provided with a butting head that matches the position of the working station groove. The detection table is provided with a display table and a bracket for installing the detection rod. The tail end of the detection rod is provided with an elastic piece. The elastic piece extends vertically above the display table and the bottom surface is aligned with the top surface of the display table. A shielding powder is laid above the display table, and the position of the shielding powder matches that of the elastic piece.

[0005] After adopting the above structure, by placing the reducer to be tested in the working station groove and fitting it with the butting head on the detection rod, after starting the reducer to be tested, the vibration generated by the reducer is transmitted from the front end of the detection rod to the elastic piece at the tail end. Since the elastic piece extends vertically above the display table, it swings reciprocally in the horizontal direction under continuous vibration. During the swinging process, the shielding powder that matches its position is swept away, exposing a part of the display table, and the shielding powder is restored after each detection. As the vibration intensity of the reducer increases, the swinging amplitude of the elastic piece increases accordingly, and the area of the display table exposed after the shielding powder is swept away is larger, which matches the size of the noise generated by the vibration. The slight noise is converted into an easily observable exposed area of the display table through the swinging of the elastic piece, enabling the tester to easily determine whether the noise of the reducer exceeds the standard.

[0006] As a further improvement of the present utility model, a plurality of indicating areas are provided on the top surface of the display table. The indicating areas include a minimum indicating area corresponding to the elastic sheet, a maximum indicating area corresponding to the edge of the display table, and a plurality of intermediate indicating areas located between the minimum indicating area and the maximum indicating area.

[0007] After adopting the above structure, by setting the minimum indicating area, the maximum indicating area and the intermediate indicating areas on the top surface of the display table, the elastic sheet swings from the minimum indicating area to the maximum indicating area, sweeping away the shielding powder laid on the display table. By observing the number of the indicating areas swept away, the noise level of the reducer can be judged more accurately.

[0008] As a further improvement of the present utility model, the bracket is provided with a connecting ring sleeved outside the detection rod, and a rubber pad is fixed between the connecting ring and the detection rod.

[0009] After adopting the above structure, by fixing the rubber pad between the connecting ring and the detection rod, it can better simulate the human hand grasping the detection rod and ensure the reliability of the detection result.

[0010] As a further improvement of the present utility model, a partition is provided on the edge of the display table and erected upward. The partition is provided with a notch for the elastic sheet to pass through.

[0011] After adopting the above structure, by setting the partition on the edge of the display table, the falling of the shielding powder from the display table can be reduced; by providing the notch for the elastic sheet to pass through on the partition, the swing of the elastic sheet can be avoided from being affected.

[0012] As a further improvement of the present utility model, different marking pigments are respectively coated on the indicating areas.

[0013] After adopting the above structure, by coating different marking pigments on different indicating areas, the detection personnel can quickly identify which position and category the exposed indicating area belongs to. Description of the Drawings

[0014] Figure 1 The structure diagram of the present utility model is shown.

[0015] 1 - Detection table, 2 - Detection rod, 3 - Workstation groove, 4 - Contact head, 5 - Display table, 6 - Bracket, 7 - Elastic sheet, 8 - Indicating area, 9 - Connecting ring, 10 - Rubber pad, 11 - Partition, 12 - Notch. Detailed Embodiment

[0016] Such as Figure 1A noise detection device for a speed reducer is shown, including a detection table 1 and a detection rod 2. A workbench slot 3 for placing the speed reducer to be tested is provided on the detection table 1. A butting head 4 matching the position of the workbench slot 3 is provided at the front end of the detection rod 2. A display table 5 and a bracket 6 for installing the detection rod 2 are provided on the detection table 1. An elastic piece 7 is provided at the tail end of the detection rod 2. The elastic piece 7 vertically extends above the display table 5 and the bottom surface is aligned with the top surface of the display table 5. A shielding powder is laid above the display table 5, and the position of the shielding powder matches that of the elastic piece 7.

[0017] By placing the speed reducer to be tested in the workbench slot 3 and fitting it with the butting head 4 on the detection rod 2, after starting the speed reducer to be tested, the vibration generated by the speed reducer is transmitted from the front end of the detection rod 2 to the elastic piece 7 at the tail end. Since the elastic piece 7 vertically extends above the display table 5, it swings reciprocally in the horizontal direction under continuous vibration. During the swinging process, the shielding powder matching its position is swept away, exposing a part of the display table 5, and the shielding powder is restored after each detection; as the vibration intensity of the speed reducer increases, the swinging amplitude of the elastic piece 7 increases accordingly, and the area of the display table 5 exposed after the shielding powder is swept away is larger, matching the magnitude of the noise generated by the vibration. The slight noise is converted into the exposed area of the display table 5 that is easy to observe through the swinging of the elastic piece 7, enabling the tester to easily judge whether the noise of the speed reducer exceeds the standard.

[0018] A number of indicating areas 8 are provided on the top surface of the display table 5. The indicating area 8 includes a minimum indicating area 8 corresponding to the elastic piece 7, a maximum indicating area 8 corresponding to the edge of the display table 5, and a number of intermediate indicating areas 8 located between the minimum indicating area 8 and the maximum indicating area 8.

[0019] By providing a minimum indicating area 8, a maximum indicating area 8, and intermediate indicating areas 8 on the top surface of the display table 5, when the elastic piece 7 swings from the minimum indicating area 8 to the maximum indicating area 8, the shielding powder laid on the display table 5 is swept away. By observing the number of the indicating areas 8 that are swept away, the noise level of the speed reducer can be judged more accurately.

[0020] The bracket 6 is provided with a connecting ring 9 sleeved outside the detection rod 2, and a rubber pad 10 is fixed between the connecting ring 9 and the detection rod 2.

[0021] By fixing the rubber pad 10 between the connecting ring 9 and the detection rod 2, it can better simulate the human hand grasping the detection rod 2 and ensure the reliability of the detection results.

[0022] A partition 11 erected upward is provided at the edge of the display table 5, and the partition 11 is provided with a notch 12 for the elastic piece 7 to pass through.

[0023] By arranging the partition plate 11 at the edge of the display stand 5, the falling of the shielding powder from the display stand 5 can be reduced; by arranging a notch 12 for the elastic sheet 7 to pass through in the partition plate 11, the influence on the swing of the elastic sheet 7 can be avoided.

[0024] The said indicating areas 8 are respectively coated with different marking pigments.

[0025] By coating different indicating areas 8 with different marking pigments, the inspectors can quickly identify which position and category the exposed indicating area 8 belongs to.

Claims

1. A reducer noise detection device, comprising a detection platform (1) and a detection rod (2), wherein the detection platform (1) is provided with a station slot (3) for placing the reducer to be tested, and the front end of the detection rod (2) is provided with an abutment head (4) matching the position of the station slot (3), characterized in that: The detection platform (1) is provided with a display platform (5) and a bracket (6) for mounting a detection rod (2); an elastic sheet (7) is provided at the tail end of the detection rod (2); the elastic sheet (7) vertically extends to the top of the display platform (5) and the bottom surface is aligned with the top surface of the display platform (5); a shielding powder is spread above the display platform (5), and the position of the shielding powder matches the elastic sheet (7).

2. A reducer noise detection device according to claim 1, characterized in that: The top surface of the display stand (5) is provided with a plurality of indication areas (8), the indication areas (8) comprising a minimum indication area (8) corresponding to the elastic sheet (7), a maximum indication area (8) corresponding to the edge of the display stand (5), and a plurality of intermediate indication areas (8) located between the minimum indication area (8) and the maximum indication area (8).

3. The reducer noise detection device according to claim 1, characterized in that: The bracket (6) is provided with a connecting ring (9) sleeved on the outside of the detection rod (2), and a rubber pad (10) is fixed between the connecting ring (9) and the detection rod (2).

4. The reducer noise detection device according to claim 1, characterized in that: An upwardly erected partition (11) is provided at the edge of the display stand (5), and the partition (11) is provided with a notch (12) for the elastic sheet (7) to pass through.

5. The reducer noise detection device according to claim 2, characterized in that: The indicator areas (8) are respectively coated with different marking pigments.

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