Gear box assembly noise detection device

Abstract

The invention relates to the technical field of gearbox performance detection, in particular to a gearbox assembly noise detection device which comprises a noise box body, a carrying table, a lifting air cylinder and a mounting assembly. Through the arrangement of the telescopic cylinder, when the gearbox is conveyed to the main body through an assembly line after being assembled, the two turnover plates can be turned over at the same time through driving of the telescopic cylinder, and the two turnover plates, the main body and the carrying table are closed to form a closed space for noise detection; the carrying platform can move forwards through the assembly line, the gear box does not need to be additionally taken down and placed into a closed space for noise detection, and the assembly line degree of the gear box is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gear box performance detection, and in particular to a gear box assembly noise detection device. Background Art

[0002] The gearbox is an important transmission device in the power transmission system, and the performance of the gearbox is crucial to the performance of the transmission system. Whether the meshing structure between the gears in the gearbox is normal is related to the noise generated when the gears are working. The better the meshing between the gears, the smaller the noise generated, and the worse the meshing between the gears, the greater the noise generated.

[0003] Existing gear box assembly noise detection devices usually place the gear box in a noise box, and detect the noise generated by the gear box when it is working after the gear box is driven to rotate by components. However, gear box assembly is usually an assembly line operation, and the noise box needs to be a relatively closed space, which is not convenient for use with an assembly line. The assembled gear box needs to be removed from the assembly line by a clamp or manually and placed in a closed noise box for noise detection, which is not conducive to improving the degree of assembly line operation of the gear box. Summary of the invention

[0004] The technical solution adopted by the present invention to solve the technical problem is: to provide a gear box assembly noise detection device, comprising:

[0005] A noise box, the noise box comprising a main body and two folding plates rotatably arranged on the main body, a decibel meter for detecting noise is arranged in the main body, a through slot adapted to the carrier plate is arranged at the bottom of the main body, the main body is arranged at one side of the assembly line, and the assembly line passes through the through slot, and the two folding plates are arranged along the running direction of the assembly line;

[0006] A carrier, the carrier is arranged in the main body, the carrier is provided with a cavity for placing a gear box, and the carrier is connected to the assembly line;

[0007] A lifting cylinder, wherein the lifting cylinder is provided with at least one, a mounting frame is provided at the output end of the lifting cylinder, a transmission motor is provided on the mounting frame, a transmission shaft is provided at the output end of the transmission motor, the transmission shaft corresponds to the transmission hole on the gear box, the lifting cylinder is used to control the transmission shaft to be inserted into the transmission hole on the gear box, and the transmission motor is used to drive the transmission shaft to drive the gear to rotate;

[0008] An installation component, which includes a telescopic cylinder and a carrier arranged at the output end of the telescopic cylinder, the carrier is provided with two connecting parts, the connecting parts correspond to the folding plate, the connecting parts are provided with racks, the main body is provided with a rotating gear meshing with the rack, the folding plate is provided with a rotating shaft, the rotating shaft and the rotating gear are coaxially fixed, the telescopic cylinder is used to drive the carrier to move and drive the folding plate to rotate until it is closed with the main body and abuts against the carrier.

[0009] Furthermore, a slide rail 1 is provided on the main body, a slide block 1 is provided on the carrier, and the slide block 1 is slidably arranged on the slide rail 1.

[0010] Furthermore, a support frame is provided on the main body, a second slide rail is provided on the support frame, a second slide block is provided on the mounting frame, and the second slide block is slidably arranged on the second slide rail.

[0011] Furthermore, a supporting block 1 is provided at the output end of the lifting cylinder, a supporting block 2 corresponding to the supporting block 1 is provided on the mounting frame, a sliding groove is provided on the supporting block 2, an output shaft is coaxially fixed to the supporting block, the output shaft is slidably set in the sliding groove, a telescopic spring is sleeved on the output shaft, one end of the telescopic spring is connected to the output shaft, and the other end of the telescopic spring is connected to the supporting block 2.

[0012] Furthermore, the output shaft is provided with a supporting portion, and the output shaft is provided with a supporting portion, and both ends of the telescopic spring are respectively connected to the supporting block 2 and the supporting portion.

[0013] Furthermore, the output shaft is further provided with a limiting portion, and the size of the limiting portion is larger than the size of the sliding groove.

[0014] Furthermore, it also includes a guide plate and a guide cylinder, the output end of the guide cylinder is connected to the guide plate, the guide plate is provided with a guide hole, the guide hole corresponds to the transmission hole of the lower end cover of the gear box, and the guide cylinder is used to control the guide plate to move to contact with the carrier plate.

[0015] Furthermore, it also includes a positioning column, which is arranged in the main body, and the positioning column and the upper end of the gear box are abutted against each other.

[0016] The beneficial effects of the present invention are as follows: a gear box assembly noise detection device is provided, comprising a noise box body, a carrier, a lifting cylinder and an installation component, through the telescopic cylinder, and the rotating gear and rack connected to the two folding plates cooperate with each other, so that when the gear box is assembled and transported to the main body through the assembly line, the two folding plates can be driven by the telescopic cylinder to realize simultaneous folding of the two folding plates, and closed with the main body and the carrier to form a closed space for noise detection; after the noise detection, the two folding plates can be rotated simultaneously by starting the telescopic cylinder, and the carrier can then move forward through the assembly line, without the need to additionally remove the gear box and place it in the closed space for noise detection, thereby improving the degree of streamlining of the gear box assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] In the figure: Figure 1 The overall structure diagram of a gear box assembly noise detection device provided by the present invention;

[0019] Figure 2 for Figure 1 The overall structure diagram of the gearbox assembly noise detection device from another perspective is shown;

[0020] Figure 3 for Figure 1 The three-dimensional structure diagram of the gearbox assembly noise detection device with the rear plate hidden;

[0021] Figure 4 for Figure 1 A three-dimensional structural diagram of the carrier shown;

[0022] Figure 5 for Figure 1 A partial cross-sectional view of a portion of the structure located at the upper part of the main body shown;

[0023] Figure 6 for Figure 1 A partial cross-sectional view of the structure located at the lower part of the main body is shown.

[0024] Description of reference numerals: 100, gear box assembly noise detection device; 10, noise box body; 11, main body; 111, decibel meter; 112, through slot; 113, top plate; 114, front plate; 115, rear plate; 116, support frame; 1161, slide rail 2; 117, rotating gear; 118, slide rail 1; 119, side frame; 12, folding plate; 121, rotating shaft; 20, carrier; 21, cavity; 22, loading hole; 30, lifting cylinder; 31, mounting frame; 311, sliding block 2; 312, abutting block 2; 3 121. Sliding groove; 32. Transmission motor; 33. Transmission shaft; 34. Abutment block 1; 341. Output shaft; 3411. Telescopic spring; 3412. Abutment portion; 3413. Limiting portion; 41. Telescopic cylinder; 42. Carrier; 421. Connecting portion; 4211. Rack; 422. Sliding block 1; 423. Sliding portion; 50. Guide plate; 51. Guide cylinder; 52. Guide hole; 60. Positioning column; 200. Assembly line; 300. Gear box; 301. Upper end cover; 3011. Transmission hole; 302. Lower end cover. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the present invention in an illustrative manner, so it only shows the composition related to the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Please refer to Figure 1-6 , a gear box assembly noise detection device 100 is provided, including a noise box body 10, a carrier 20, a lifting cylinder 30 and a mounting assembly, and only part of the assembly line is shown in the figure.

[0027] The noise box 10 includes a main body 11 and two folding plates 12 rotatably arranged on the main body 11. A decibel meter 111 for detecting noise is arranged inside the main body 11. A through slot 112 adapted to the carrier plate is arranged at the bottom of the main body 11. The main body 11 is arranged on one side of the assembly line, and the assembly line passes through the through slot 112. The two folding plates 12 are arranged along the running direction of the assembly line. Specifically, the main body 11 includes a top plate 113, a front plate 114 and a rear plate 115 arranged on both sides of the width direction of the assembly line, and two side frames 119 arranged in the length direction of the assembly line. The main body 11, the carrier plate and the two folding plates 12 can enclose a closed space.

[0028] The carrier 20 is arranged in the main body 11. The carrier 20 is provided with a cavity 21 for placing the gear box 300 and a loading hole 22. The carrier 20 is connected to the assembly line. Specifically, in this embodiment, three cavities 21 are provided, and the three cavities 21 are arranged in parallel along the length direction of the carrier 20. Two loading holes 22 are provided, and the two loading holes 22 are both located at the bottom of the carrier 20. The two loading holes 22 correspond to the two transmission holes 3011 on the lower end cover 302 of the gear box 300. .

[0029] The lifting cylinder 30 is provided with at least one, specifically, in this embodiment, the lifting cylinder 30 is provided with three, which respectively correspond to one transmission hole 3011 of the upper end cover 301 of the gear box 300 and two transmission holes 3011 of the lower end cover 302 of the gear box 300. The output end of the lifting cylinder 30 is provided with a mounting frame 31, and a transmission motor 32 is provided on the mounting frame 31. The output end of the transmission motor 32 is provided with a transmission shaft 33, and the transmission shaft 33 corresponds to the transmission hole 3011 on the gear box 300. The lifting cylinder 30 is used to control the transmission shaft 33 to be inserted into the transmission hole 3011 on the gear box 300, and the transmission motor 32 is used to drive the transmission shaft 33 to drive the gear to rotate. Specifically, one of the transmission shafts 33 corresponding to the lower end cover 302 of the gear box 300 is connected to the output shaft 341 in the gear box 300, the other transmission shaft 33 corresponding to the lower end cover 302 of the gear box 300 is connected to the driving shaft in the gear box 300, and the transmission shaft 33 corresponding to the upper end cover 301 of the gear box 300 is connected to the driving shaft in the gear box 300. When testing the noise, the transmission shaft 33 connected to the driving shaft in the gear box 300 drives the gears in the gear box 300 to drive, and the transmission shaft 33 connected to the output shaft 341 in the gear box 300 applies a reverse load to the gears in the gear box 300, and the noise of the gear box 300 during transmission is tested by the decibel meter 111 set inside the main body 11.

[0030] The main body 11 is provided with a support frame 116, and the support frame 116 is provided with a second slide rail 1161. The mounting frame 31 is provided with a second slide block 311, and the second slide block 311 is slidably disposed on the second slide rail 1161. Specifically, in this embodiment, the support frame 116 corresponds to the lifting cylinder 30.

[0031] A supporting block 34 is provided at the output end of the lifting cylinder 30, a supporting block 312 corresponding to the supporting block 34 is provided on the mounting frame 31, a sliding groove 3121 is provided on the supporting block 312, an output shaft 341 is coaxially fixed to the supporting block 34, the output shaft 341 is slidably set in the sliding groove 3121, a telescopic spring 3411 is sleeved on the output shaft 341, one end of the telescopic spring 3411 is fixedly connected to the output shaft 341, and the other end of the telescopic spring 3411 is fixedly connected to the supporting block 312.

[0032] The output shaft 341 is provided with a supporting portion 3412 and a limiting portion 3413, and the two ends of the telescopic spring 3411 are fixedly connected to the supporting block 2 312 and the supporting portion 3412, respectively. Specifically, in the present embodiment, the supporting portion 3412 and the limiting portion 3413 are both cylindrical structures. When the lifting cylinder 30 controls the corresponding mounting frame 31 to move toward the direction close to the main body 11, the supporting portion 3412 presses the telescopic spring 3411, and the elastic force of the telescopic spring 3411 and the force applied by the lifting cylinder 30 interact with each other, thereby reducing the situation in which the gear box 300 is damaged due to excessive force applied by the lifting cylinder 30 to the gear box 300.

[0033] As a specific embodiment of the present invention, the abutting portion 3412 on the output shaft 341 located above the main body 11 is closer to the corresponding lifting cylinder 30 relative to the corresponding limiting portion 3413, and the abutting portion 3412 on the output shaft 341 located below the main body 11 is farther away from the corresponding lifting cylinder 30 relative to the corresponding limiting portion 3413. The size of the limiting portion 3413 is larger than the size of the sliding groove 3121, and the setting of the limiting portion 3413 prevents the output shaft 341 from moving out of the sliding groove 3121.

[0034] The mounting assembly includes a telescopic cylinder 41 and a carrier 42 disposed at the output end of the telescopic cylinder 41. The carrier 42 is provided with two connecting parts 421, the connecting parts 421 correspond to the folding plate 12, and the ends of the connecting parts 421 are provided with a rack 4211. The main body 11 is provided with a rotating gear 117 meshing with the rack 4211. The folding plate 12 is provided with a rotating shaft 121, and the rotating shaft 121 and the rotating gear 117 are coaxially fixed. The telescopic cylinder 41 is used to drive the carrier 42 to move and drive the folding plate 12 to rotate until it is closed with the main body 11 and abuts against the carrier 20. Specifically, in this embodiment, the rack 4211 is arranged along the height direction of the main body 11, and the rotating shaft 121 is arranged along the width direction of the main body 11.

[0035] The main body 11 is provided with a slide rail 118, and the carrier 42 is provided with a sliding block 422, which is slidably arranged on the slide rail 118. Specifically, in this embodiment, the carrier 42 is provided with two sliding parts 423 arranged along the height direction of the main body 11, the sliding block 422 is arranged on the sliding part 423, and the slide rail 118 is arranged on the front plate 114 of the main body 11. The slide rail 118 is arranged in pairs about the central axis in the length direction of the main body 11. The connecting part 421 and the sliding part 423 are both square plate structures.

[0036] The telescopic cylinder 41 is used to control the lifting of the carrier 42, thereby driving the two rotating gears 117 to rotate, and the two rotating gears 117 then drive the two folding plates 12 to rotate respectively, so that when the gear box 300 is transported to the main body 11 through the assembly line after assembly, the two folding plates 12 can be driven by the telescopic cylinder 41 to fold at the same time, and close with the main body 11 and the carrier 20 to form a closed space for noise detection. After the noise detection, the telescopic cylinder 41 is started to rotate the two folding plates 12 at the same time, and the carrier 20 can then move forward through the assembly line. There is no need to remove the gear box 300 and put it in a closed space for noise detection, which improves the assembly flow of the gear box 300.

[0037] The gearbox assembly noise detection device 100 further includes a guide plate 50 and a guide cylinder 51. The guide plate 50 is provided with a guide hole 52, and the guide hole 52 corresponds to the transmission hole 3011 on the lower end cover 302 of the gearbox 300. Specifically, in this embodiment, the guide plate 50 is located below the carrier 20, the output end of the guide cylinder 51 is fixedly connected to the guide plate 50, and the output end of the guide cylinder 51 is arranged toward the carrier, and the guide cylinder 51 is used to drive the guide plate 50 to move to contact the carrier, and the arrangement of the guide plate 50 can position the transmission shaft 33 located below the carrier to be inserted into the transmission hole 3011 on the lower end cover 302 of the gearbox 300.

[0038] The gear box assembly noise detection device 100 further includes a positioning column 60, which is disposed in the main body 11, and the positioning column 60 abuts against the upper end of the gear box 300. Specifically, in this embodiment, the positioning column 60 is fixedly connected to the inner wall of the top plate 113 of the main body 11 and abuts against the upper end cover 301 of the gear box 300, so that the gear box 300 is not easy to move during the transmission process, reducing the problem of affecting the accuracy of noise detection due to the deviation of the gear box 300.

Claims

1. A gearbox assembly noise detection device, characterized in that: include: A noise box, the noise box comprising a main body and two folding plates rotatably arranged on the main body, a decibel meter for detecting noise is arranged in the main body, a through slot adapted to the carrier plate is arranged at the bottom of the main body, the main body is arranged at one side of the assembly line, and the assembly line passes through the through slot, and the two folding plates are arranged along the running direction of the assembly line; A carrier, the carrier is arranged in the main body, the carrier is provided with a cavity for placing a gear box, and the carrier is connected to the assembly line; A lifting cylinder, wherein the lifting cylinder is provided with at least one, a mounting frame is provided at the output end of the lifting cylinder, a transmission motor is provided on the mounting frame, a transmission shaft is provided at the output end of the transmission motor, the transmission shaft corresponds to the transmission hole on the gear box, the lifting cylinder is used to control the transmission shaft to be inserted into the transmission hole on the gear box, and the transmission motor is used to drive the transmission shaft to drive the gear to rotate; An installation component, which includes a telescopic cylinder and a carrier arranged at the output end of the telescopic cylinder, the carrier is provided with two connecting parts, the connecting parts correspond to the folding plate, the connecting parts are provided with racks, the main body is provided with a rotating gear meshing with the rack, the folding plate is provided with a rotating shaft, the rotating shaft and the rotating gear are coaxially fixed, the telescopic cylinder is used to drive the carrier to move and drive the folding plate to rotate until it is closed with the main body and abuts against the carrier.

2. The gearbox assembly noise detection device according to claim 1, characterized in that: The main body is provided with a slide rail 1, the carrier is provided with a slide block 1, and the slide block 1 is slidably arranged on the slide rail 1.

3. The gear box assembly noise detection device according to claim 1, characterized in that: The main body is provided with a support frame, the support frame is provided with two slide rails, the mounting frame is provided with two slide blocks, and the two slide blocks are slidably arranged on the two slide rails.

4. The gear box assembly noise detection device according to claim 1, characterized in that: The output end of the lifting cylinder is provided with a supporting block 1, the mounting frame is provided with a supporting block 2 corresponding to the supporting block 1, the supporting block 2 is provided with a sliding groove, the supporting block is coaxially fixed with an output shaft, the output shaft is slidably set in the sliding groove, a telescopic spring is sleeved on the output shaft, one end of the telescopic spring is connected to the output shaft, and the other end of the telescopic spring is connected to the supporting block 2.

5. The gear box assembly noise detection device according to claim 4, characterized in that: The output shaft is provided with a supporting portion, and the two ends of the telescopic spring are respectively connected to the supporting block 2 and the supporting portion.

6. The gearbox assembly noise detection device according to claim 5, characterized in that: The output shaft is further provided with a limiting portion, and the size of the limiting portion is larger than the size of the sliding groove.

7. The gear box assembly noise detection device according to claim 1, characterized in that: It also includes a guide plate and a guide cylinder, wherein the output end of the guide cylinder is connected to the guide plate, the guide plate is provided with a guide hole, the guide hole corresponds to the transmission hole of the lower end cover of the gear box, and the guide cylinder is used to control the guide plate to move to contact with the carrier plate.

8. The gear box assembly noise detection device according to claim 1, characterized in that: It also includes a positioning column, which is arranged in the main body and abuts against the upper end of the gear box.

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