A gear transmission noise automatic detection device

Abstract

The present invention relates to an automatic gear transmission noise detection device in the field of gear noise detection. Through a load-bearing shaft installed on a rotating disk and a power loading mechanism installed on one side of a load gear to drive a gear to be tested, when the same batch of gears are tested, the rotating disk drives the load-bearing shaft sleeved with the gear to be tested to rotate intermittently, so that the gears to be tested in the same batch are contacted with the load gear one by one. In addition, the power loading mechanism including a plug connector, a first electric telescopic rod and a second motor is cooperated to drive the gear to be tested that is in contact with the load gear to rotate, so that the gears to be tested are rotated and detected one by one, and the same batch of gears to be tested are automatically tested one by one, which meets the needs of large-scale testing and improves the detection efficiency. In addition, a movable radial slider and a horizontal slider are used to adjust the lateral distance between the load-bearing shaft and the gear to be tested, so as to adapt to the clamping test of gears to be tested with different diameters, and the device has good adaptability.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to an automatic detection device for gear transmission noise applied in the field of gear noise detection. Background Art

[0002] Transmission noise detection is a crucial process. Gears are the core transmission components in mechanical equipment, and their performance is directly related to the operating efficiency and stability of the entire equipment. Transmission noise not only reflects the smoothness of the gears during the engagement process, but is also likely to indicate potential quality problems or design defects. Therefore, through accurate noise detection, these problems can be discovered and corrected in a timely manner to ensure the quality of the gears when they leave the factory.

[0003] Existing gear transmission noise detection devices can generally only detect one gear at a time. For gears produced in the same batch, it is necessary to frequently disassemble and replace the gears to be tested, which is cumbersome to operate and difficult to meet large-scale detection needs. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the traditional gear noise detection device cannot meet the batch detection requirements.

[0005] In order to solve the above problems, the present invention provides an automatic detection device for gear transmission noise, comprising a mounting seat, a rotating disk is arranged above the mounting seat, the rotating disk is connected to the output shaft of a first motor driving the rotating disk to intermittently rotate, bearing shafts equidistantly distributed on the circumference are arranged on the rotating disk, a locking assembly for locking the gear to be tested is arranged on the bearing shaft, a power loading mechanism for driving the bearing shaft to rotate is arranged at the lower right side of the rotating disk, the power loading mechanism comprises a plug connector, the lower end of the plug connector is fixedly connected to a prismatic shaft, the prismatic shaft is slidably connected to a prismatic cylinder, and the lower end of the prismatic cylinder is connected to the output shaft of the second motor;

[0006] The prismatic shaft is rotatably connected to a lifting plate, which is connected to a first electric telescopic rod. A plug-in slot matching the plug-in connector is provided at the lower end of the load-bearing shaft. The first electric telescopic rod drives the prismatic shaft and the plug-in connector thereon to move upward and insert into the plug-in slot through the lifting plate. A load gear matching the gear to be tested is provided on the right side of the rotating disk. The load gear is connected to a magnetic powder brake through a rotating shaft. A pickup is provided above the load gear. The pickup is fixedly connected to a soundproof cover. A controller is also installed on the mounting seat. The first motor, the second motor, the first electric telescopic rod and the magnetic powder brake are all electrically connected to the controller.

[0007] In the above-mentioned automatic detection device for gear transmission noise, automatic noise detection of the gears to be tested is achieved one by one through the rotating disk, the bearing shaft and the power loading mechanism.

[0008] As a further improvement of the present application, the locking assembly includes a sliding column nested in the load-bearing shaft, the sliding column has circumferentially distributed blocks nested in the sliding column, the outer ends of the blocks pass through the outer wall of the load-bearing shaft, the inner ends of the blocks are connected to spring sheets installed in the sliding column, the upper end of the sliding column is fixedly connected to a pull rod extending to the top of the load-bearing shaft, and the outer side of the pull rod is provided with a coil spring nested in the load-bearing shaft.

[0009] As a further improvement of the present application, each load-bearing shaft is rotatably connected to a radial slider radially slidingly connected to a rotating disk, a movable frame slidably connected to the rotating disk is fixedly connected to the inner side of the radial slider, the movable frame is threadedly connected to a radial screw rod, and the inner end of each radial screw rod is connected for transmission to the output shaft of the third motor through a transmission gear set; the prismatic tube is rotatably connected to a horizontal slider laterally slidingly connected to a mounting seat, the first electric telescopic rod is fixedly connected to the horizontal slider, a first infrared distance sensor is fixedly connected to the left side of the horizontal slider, a positioning column cooperating with the first infrared distance sensor is fixedly connected to the lower end face of the radial slider, and a second electric telescopic rod is fixedly connected to one end of the horizontal slider.

[0010] As a further improvement of the present application, the soundproof cover is sleeved on the outer sides of the rotating disk and the load gear and a door panel is hinged at the front end.

[0011] As a further improvement of the present application, the bearing shaft is a vertical shaft and is provided with a sliding cavity for sliding the sliding column, a through groove for extending the card block is provided at the lower part of the sliding cavity, a limiting ring abutting against the gear to be measured is provided at the lower end of the bearing shaft, a key bar integrally formed with the bearing shaft is fixedly connected to the upper end of the limiting ring, and a key groove cooperating with the key bar is provided on the gear to be measured.

[0012] As a further improvement of the present application, the sliding column is a vertical cylindrical structure, the circumferential side wall of the sliding column is provided with a transverse sliding groove for accommodating the block, and the spring sheet is a vertically arranged elastic metal sheet in the shape of a semicircular ring.

[0013] As a further improvement of the present application, an indicator light is mounted on the rotating disk and is arranged opposite to each bearing shaft, and the indicator light is electrically connected to the controller.

[0014] As a further improvement of the present application, the rotating disk is provided with a radial slide groove for the radial slider to slide, a guide groove is provided in the radial slide groove, and a guide block is provided on the outer wall of the radial slider to cooperate with the guide groove; a horizontal slide groove is provided on the mounting seat for the horizontal slider to slide.

[0015] As a further improvement of the present application, a cylindrical groove is opened in the middle of the rotating disk, and the transmission gear set includes a driving gear nested in the cylindrical groove and a driven gear fixedly connected to the end of each radial screw rod.

[0016] To summarize, the present invention has a load-bearing shaft installed on a rotating disk and a power loading mechanism installed on one side of the load gear to drive the gear to be tested. When the same batch of gears are tested, the rotating disk drives the load-bearing shaft sleeved with the gear to be tested to rotate intermittently, so that the gears to be tested in the same batch are contacted with the load gear one by one. In addition, the power loading mechanism including the plug connector, the first electric telescopic rod and the second motor is used to drive the gear to be tested that is in contact with the load gear to rotate, so that the gears to be tested are rotated and tested one by one, and the same batch of gears to be tested are automatically tested one by one, which meets the needs of large-scale testing and improves the testing efficiency. In addition, a movable radial slider and a horizontal slider are used to adjust the lateral distance between the load-bearing shaft and the gear to be tested, so as to adapt to the clamping test of gears to be tested with different diameters, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0018] Figure 2 It is a schematic diagram of the assembly of the power loading mechanism and the load-bearing shaft in this application;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the load-bearing shaft in this application;

[0020] Figure 4 This is a schematic diagram of the assembly of the locking assembly in this application;

[0021] Figure 5 It is a schematic diagram of the connection and transmission between the power loading mechanism and the load-bearing shaft in this application;

[0022] Figure 6 This is a schematic diagram of the transverse cross-sectional structure of the present application;

[0023] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 8 It is a schematic diagram of the assembly of the radial slider and the rotating disk in this application;

[0025] Fig. 9 It is a schematic diagram of the horizontal cross-sectional structure of the rotating disk in this application.

[0026] Description of the numbers in the figure:

[0027] 1. Mounting seat; 2. Soundproof cover; 3. Controller; 4. Pickup; 5. Rotating plate; 501. Radial slide groove; 502. Guide groove; 6. First motor; 7. Loading shaft; 701. Sliding cavity; 702. Through groove; 703. Key bar; 704. Plug-in groove; 8. Power loading mechanism; 9. Gear to be tested; 10. Load gear; 11. Magnetic powder brake; 12. Sliding column; 13. Block; 14. Spring sheet; 15. Pull rod; 16. Spiral Spring; 17, plug connector; 18, prismatic shaft; 19, lifting plate; 20, prismatic tube; 21, second motor; 22, first electric telescopic rod; 23, radial slider; 24, moving frame; 25, radial screw rod; 26, transmission gear set; 2601, driving gear; 2602, passive gear; 27, third motor; 28, horizontal slider; 29, second electric telescopic rod; 30, first infrared distance sensor; 31, positioning column; 32, indicator light. DETAILED DESCRIPTION

[0028] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] Figure 1-5 A gear transmission noise automatic detection device is shown, comprising a mounting seat 1, a rotating disk 5 is arranged above the mounting seat 1, the rotating disk 5 is connected to the output shaft of a first motor 6 that drives it to rotate intermittently, the rotating disk 5 is mounted with bearing shafts 7 that are equidistantly distributed around the circumference, the bearing shaft 7 is mounted with a locking assembly for locking the gear 9 to be tested, and a power loading mechanism 8 for driving the bearing shaft 7 to rotate is arranged at the lower right side of the rotating disk 5, the power loading mechanism 8 comprises a plug connector 17, the lower end of the plug connector 17 is fixedly connected to a prism shaft 18, the prism shaft 18 is slidably connected to a prism cylinder 20, and the lower end of the prism cylinder 20 is connected to the output shaft of a second motor 21;

[0031] The prism shaft 18 is rotatably connected to a lifting plate 19, and the lifting plate 19 is connected to a first electric telescopic rod 22. A plug-in slot 704 cooperating with the plug connector 17 is provided at the lower end of the load-bearing shaft 7. The first electric telescopic rod 22 drives the prism shaft 18 and the plug connector 17 thereon to move upward and insert into the plug-in slot 704 through the lifting plate 19; a load gear 10 cooperating with the gear to be tested 9 is provided on the right side of the rotating disk 5, and the load gear 10 is connected to a magnetic powder brake 11 through a rotating shaft, and a pickup 4 is provided above the load gear 10, and the pickup 4 is fixedly connected to a sound insulation cover 2. A controller 3 is also installed on the mounting seat 1, and the first motor 6, the second motor 21, the first electric telescopic rod 22, and the magnetic powder brake 11 are all electrically connected to the controller 3.

[0032] For details, please refer to Figure 1 , Figure 2 and Figure 5When performing noise detection on the gear 9 to be tested, in step 1, multiple gears 9 to be tested are placed on the load-bearing shaft 7, and the gears 9 to be tested are fixed on the load-bearing shaft 7 by a locking assembly. In step 2, the controller 3 starts the first motor 6, and the output shaft of the first motor 6 drives the rotating disk 5 to rotate, and the rotating disk 5 drives the gear 9 to be tested closest to the load gear 10 to contact the load gear 10; in step 3, when one of the gears 9 to be tested contacts the load gear 10, the controller 3 starts the first electric telescopic rod 22, and the first electric telescopic rod 22 drives the prismatic shaft 18 and the plug connector 17 to move upward through the lifting plate 19, and the plug connector 17 moves upward and is inserted into the plug slot 704 at the lower end of the load-bearing shaft 7; in step 4, the controller 3 starts the second motor 21, the magnetic powder brake 11 and the pickup 4 to detect the noise of the gear 9 to be tested when it is transmitted; in step 5, repeat steps 2 to 4, so that the gears 9 to be tested distributed in a circle contact with the load gear 10 one by one and perform noise monitoring.

[0033] Compared with the traditional gear transmission noise detection device, the present invention uses an intermittently rotating rotating disk 5 and a load-bearing shaft installed on the rotating disk 5 to fix the gear 9 to be tested. When the gears of the same batch are tested, the rotating disk 5 drives the load-bearing shaft 7 to rotate intermittently, so that multiple gears to be tested 9 of the same batch are contacted with the load gear 10 one by one, thereby realizing automatic feeding of the gears to be tested 9 one by one; at the same time, in conjunction with the power loading mechanism 8 including the plug connector 17, the first electric telescopic rod 22 and the second motor 21, the gear 9 to be tested that is in contact with the load gear 10 is driven to rotate, thereby realizing rotation detection of the gears 9 to be tested one by one.

[0034] It should be noted that the soundproof cover 2 is sleeved on the outer sides of the rotating disk 5 and the load gear 10 and a door panel is hinged at the front end.

[0035] Specifically, the gear to be tested 9 and the load gear 10 are sealed to facilitate the collection of power transmission noise and reduce external noise interference.

[0036] See also Figure 3 and Figure 4 The locking assembly includes a sliding column 12 nested in the load-bearing shaft 7, and the sliding column 12 has circumferentially distributed blocks nested therein. The outer end of the block 13 passes through the outer wall of the load-bearing shaft 7, and the inner end of the block 13 is connected to a spring sheet 14 installed in the sliding column 12. The upper end of the sliding column 12 is fixedly connected to a pull rod 15 extending to the top of the load-bearing shaft 7, and the outer side of the pull rod 15 is sleeved with a coil spring 16 nested in the load-bearing shaft 7.

[0037] Specifically, when installing the gear 9 to be tested, the gear 9 to be tested is sleeved on the load-bearing gear 7 and the gear 9 to be tested is pressed downward, and the block 13 is squeezed into the load-bearing shaft 7 by the gear 9 to be tested. When the gear 9 to be tested reaches the lowest point, the pull rod 15 is pulled upward to extend the block 13. During the process, the coil spring 16 is compressed, and then the pull rod 15 is released. The coil spring 16 squeezes the sliding column 12, and the sliding column 12 squeezes the block 13. The block 13 squeezes the upper end surface of the gear 9 to be tested, thereby achieving the extrusion and fixation of the gear 9 to be tested, which is convenient for subsequent drive detection.

[0038] See also Figure 3 The bearing shaft 7 is a vertical shaft and is provided with a sliding cavity 701 for the sliding column 12 to slide. A through groove 702 is provided at the lower part of the sliding cavity 701 for the block 13 to extend out. A limiting ring is provided at the lower end of the bearing shaft 7 to abut against the gear 9 to be measured. A key bar 703 integrally formed with the bearing shaft 7 is fixedly connected to the upper end of the limiting ring. A key groove cooperating with the key bar 703 is provided on the gear 9 to be measured.

[0039] Specifically, the limiting ring and the key strip 703 further improve the stability of the connection between the gear 9 to be tested and the bearing shaft 7 .

[0040] See also Figure 3 and Figure 4 The sliding column 12 is a vertical cylindrical structure. The circumferential side wall of the sliding column 12 is provided with a transverse sliding groove for accommodating the block 13. The spring sheet 14 is a vertically arranged elastic metal sheet in a semicircular ring shape.

[0041] Specifically, when the gear 9 to be tested is disassembled, the pull rod 15 is pulled so that the block 13 is received in the transverse slide groove, thereby realizing the rapid disassembly of the gear 9 to be tested.

[0042] See also Figure 1 The rotating disk 5 is provided with indicator lights 32 arranged opposite to each bearing shaft 7 , and the indicator lights 32 are electrically connected to the controller 3 .

[0043] Specifically, when the transmission noise of the gear 9 to be tested exceeds the threshold value set by the controller 3, the controller 3 lights up the indicator light 32 corresponding to the gear 9 to be tested, reminding the tester that the gear 9 to be tested does not meet the production requirements, so as to facilitate sorting by the personnel.

[0044] Second implementation method:

[0045] Figure 6-9A gear transmission noise automatic detection device is shown. On the basis of the first embodiment, each bearing shaft 7 is rotatably connected to a radial slider 23 radially slidably connected to a rotating disk 5, a moving frame 24 slidably connected to the rotating disk 5 is fixedly connected to the inner side of the radial slider 23, and the moving frame 24 is threadedly connected to a radial screw rod 25. The inner end of each radial screw rod 25 is connected to the output shaft of a third motor 27 for transmission through a transmission gear set 26; the prismatic tube 20 is rotatably connected to a horizontal slider 28 lateraly slidably connected to a mounting seat 1, a first electric telescopic rod 22 is fixedly connected to the horizontal slider 28, a first infrared distance sensor 30 is fixedly connected to the left side of the horizontal slider 28, a positioning column 31 cooperating with the first infrared distance sensor 30 is fixedly connected to the lower end surface of the radial slider 23, and a second electric telescopic rod 29 is fixedly connected to one end of the horizontal slider 28.

[0046] For details, please refer to Figure 7 When it is necessary to detect the gear 9 to be tested with different diameters, the controller 3 starts the third motor 27, and the output shaft of the third motor 27 drives the radial screw 25 to rotate through the transmission gear set 26, and the radial screw 25 drives the radial slider 23 to move along the radial direction of the rotating disk 5 through the moving frame 24, thereby adjusting the horizontal distance between the load-bearing shaft 7 on the radial slider 23 and the load gear 10. When the load-bearing shaft 7 is adjusted, the controller 3 starts the second electric telescopic rod 29, and the second electric telescopic rod 29 drives the horizontal slider 28 to move horizontally until the first infrared distance sensor 30 moves to a position opposite to the positioning column 31. At this time, the plug connector 17 is again opposite to the plug slot 704, thereby adapting to the noise detection of the gear 9 to be tested with different radii, and has good adaptability.

[0047] See also Figure 7 and Figure 8 The rotating disk 5 is provided with a radial slide groove 501 for the radial slider 23 to slide, a guide groove 502 is provided in the radial slide groove 501, and a guide block matching the guide groove 502 is provided on the outer wall of the radial slider 23; a horizontal slide groove for the horizontal slider 28 to slide is provided on the mounting seat 1.

[0048] Specifically, the movement stability of the radial slider 23 and the horizontal slider 28 is improved.

[0049] See also Fig. 9 A cylindrical groove is opened in the middle of the rotating disk 5, and the transmission gear set 26 includes a driving gear 2601 embedded in the cylindrical groove and a driven gear 2602 fixedly connected to the end of each radial screw rod 25.

[0050] Specifically, it is convenient to realize synchronous adjustment of each bearing shaft 7.

[0051] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A gear transmission noise automatic detection device, characterized in that: The invention comprises a mounting seat (1), a rotating disk (5) is provided above the mounting seat (1), the rotating disk (5) is connected to the output shaft of a first motor (6) for driving the rotating disk (5) to rotate intermittently, bearing shafts (7) equidistantly distributed in a circumference are installed on the rotating disk (5), a locking assembly for locking the gear (9) to be tested is installed on the bearing shaft (7), a power loading mechanism (8) for driving the bearing shaft (7) to rotate is provided at the lower right side of the rotating disk (5), the power loading mechanism (8) comprises a plug connector (17), the lower end of the plug connector (17) is fixedly connected to a prism shaft (18), the prism shaft (18) is slidably connected to a prism cylinder (20), and the lower end of the prism cylinder (20) is connected to the output shaft of a second motor (21); The bearing shaft (7) is a vertical shaft and is provided with a sliding cavity (701) for sliding the sliding column (12); a through groove (702) for the block (13) to extend out is provided at the lower part of the sliding cavity (701); a limit ring is provided at the lower end of the bearing shaft (7) for abutting against the gear (9) to be measured; a key bar (703) is fixedly connected to the upper end of the limit ring and is integrally formed with the bearing shaft (7); and a key groove is provided on the gear (9) to be measured and is matched with the key bar (703); The locking assembly comprises a sliding column (12) nested in the load-bearing shaft (7), the sliding column (12) has circumferentially distributed clamping blocks (13) nested in it, the outer ends of the clamping blocks (13) penetrate the outer wall of the load-bearing shaft (7), the inner ends of the clamping blocks (13) are connected to a spring sheet (14) installed in the sliding column (12), the upper end of the sliding column (12) is fixedly connected to a pull rod (15) extending above the load-bearing shaft (7), and the outer side of the pull rod (15) is sleeved with a coil spring (16) nested in the load-bearing shaft (7); Each of the bearing shafts (7) is rotatably connected to a radial slider (23) radially slidably connected to the rotating disk (5); a moving frame (24) slidably connected to the rotating disk (5) is fixedly connected to the inner side of the radial slider (23); a radial screw rod (25) is threadedly connected to the moving frame (24); the inner end of each radial screw rod (25) is connected to the output shaft of the third motor (27) for transmission via a transmission gear set (26); the prism tube (20) is rotatably connected to a horizontal slider (28) slidably connected to the mounting seat (1); the first electric telescopic rod (22) is fixedly connected to the horizontal slider (28); a first infrared distance sensor (30) is fixedly connected to the left side of the horizontal slider (28); a positioning column (31) cooperating with the first infrared distance sensor (30) is fixedly connected to the lower end surface of the radial slider (23); and a second electric telescopic rod (29) is fixedly connected to one end of the horizontal slider (28); The prism shaft (18) is rotatably connected to a lifting plate (19), the lifting plate (19) is connected to a first electric telescopic rod (22), a plug slot (704) cooperating with the plug connector (17) is provided at the lower end of the load-bearing shaft (7), the first electric telescopic rod (22) drives the prism shaft (18) and the plug connector (17) thereon to move upwards through the lifting plate (19) and be inserted into the plug slot (704); a load gear (10) cooperating with the gear to be tested (9) is provided on the right side of the rotating disk (5), the load gear (10) is connected to a magnetic powder brake (11) via a rotating shaft, a pickup (4) is provided above the load gear (10), the pickup (4) is fixedly connected to a soundproof cover (2), a controller (3) is also installed on the mounting seat (1), and the first motor (6), the second motor (21), the first electric telescopic rod (22) and the magnetic powder brake (11) are all electrically connected to the controller (3).

2. The automatic detection device for gear transmission noise according to claim 1 is characterized in that: The soundproof cover (2) is sleeved on the outside of the rotating disk (5) and the load gear (10), and a door panel is hinged at the front end.

3. The automatic detection device for gear transmission noise according to claim 1 is characterized in that: The sliding column (12) is a vertical cylindrical structure, and a transverse sliding groove for accommodating the clamping block (13) is provided on the circumferential side wall of the sliding column (12). The spring sheet (14) is a vertically arranged elastic metal sheet in the shape of a semicircular ring.

4. The automatic detection device for gear transmission noise according to claim 1 is characterized in that: The rotating disk (5) is provided with an indicator light (32) arranged opposite to each bearing shaft (7), and the indicator light (32) is electrically connected to the controller (3).

5. The automatic detection device for gear transmission noise according to claim 1 is characterized in that: The rotating disk (5) is provided with a radial slide groove (501) for the radial slider (23) to slide, a guide groove (502) is provided in the radial slide groove (501), and a guide block matching the guide groove (502) is provided on the outer wall of the radial slider (23); and a horizontal slide groove is provided on the mounting seat (1) for the horizontal slider (28) to slide.

6. The automatic detection device for gear transmission noise according to claim 1, characterized in that: A cylindrical groove is formed in the middle of the rotating disk (5), and the transmission gear set (26) comprises a driving gear (2601) embedded in the cylindrical groove and a driven gear (2602) fixedly connected to the end of each radial lead screw (25).

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