CN219675472U - Automobile transmission shaft vibration abnormal sound detection device - Google Patents
Automobile transmission shaft vibration abnormal sound detection device Download PDFInfo
- Publication number
- CN219675472U CN219675472U CN202321185665.5U CN202321185665U CN219675472U CN 219675472 U CN219675472 U CN 219675472U CN 202321185665 U CN202321185665 U CN 202321185665U CN 219675472 U CN219675472 U CN 219675472U
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- China
- Prior art keywords
- fixing plate
- transmission shaft
- workbench
- driving motor
- chute
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 65
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 241000237509 Patinopecten sp. Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020637 scallop Nutrition 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model provides an automobile transmission shaft vibration abnormal sound detection device which comprises a workbench, a driving motor, a first fixing plate, a transmission shaft and a second fixing plate, wherein the driving motor, the first fixing plate, the transmission shaft and the second fixing plate are arranged on the workbench in a sleeved mode, and a sound insulation box is arranged on the outer sides of the driving motor, the first fixing plate and the second fixing plate in a sealing mode and matched with the workbench for use; the rotating shaft of the driving motor penetrates through the first fixing plate and is connected with one end of the transmission shaft through the first coupler, the second fixing plate is provided with a second coupler, the second coupler is connected with the other end of the transmission shaft, and the transmission shaft is driven by the driving motor to rotate; and a sealing gasket is arranged between the workbench and the sound insulation box, and the workbench is tightly connected with the sound insulation box through a plurality of compression nuts. The workbench of the detection device is provided with the sliding groove, so that transmission shafts with different lengths can be detected, the detection device is simple in structure, can be spliced and used everywhere, is small in occupied area, is convenient to detect and operate, and is more friendly to overhaul links.
Description
Technical Field
The utility model relates to the technical field of automobile part detection, in particular to an automobile transmission shaft vibration abnormal sound detection device.
Background
The automobile transmission shaft is an important connecting part in an automobile mechanical system, is a circular part which can be connected or assembled and can also move and rotate, is generally made of a light alloy steel pipe with good torsion resistance, and is generally composed of a shaft tube, a telescopic sleeve and a universal joint in composition. Vibration and shake may be generated due to high-speed rotation in the transmission process, and the generated shake may affect normal transmission. In addition, because vibration can also produce abnormal sound, influence the use. Therefore, the transmission shaft is required to be detected in the production process and the maintenance process, and the transmission shaft is simulated to generate vibration at different speeds, and whether abnormal sound is generated due to the vibration or not is detected, so that the transmission shaft is possibly damaged when the abnormal sound is large.
In the current stage, a large vehicle-enterprise factory can detect the gearbox and the transmission shaft under the working condition when the quality of the whole vehicle is checked, and the detection device and the detection process are complex.
In view of the foregoing, there is a need for improvements in drive shaft vibration detection devices in the prior art to address the above-described problems.
Disclosure of Invention
The utility model aims to disclose a device for detecting abnormal vibration of an automobile transmission shaft, which has a simple structure and convenient operation, can detect vibration of transmission shafts with different lengths, and obtains the reasonable vibration range of the transmission shaft through a decibel tester.
In order to achieve the aim, the utility model provides an automobile transmission shaft vibration abnormal sound detection device which comprises a workbench, a driving motor, a first fixing plate, a transmission shaft and a second fixing plate, wherein the driving motor is positioned on the workbench;
the rotating shaft of the driving motor penetrates through the first fixing plate and is connected with one end of the transmission shaft through the first coupler, the second fixing plate is provided with a second coupler, the second coupler is connected with the other end of the transmission shaft, and the transmission shaft is driven by the driving motor to rotate;
and a sealing gasket is arranged between the workbench and the sound insulation box, and the workbench is tightly connected with the sound insulation box through a plurality of compression nuts.
In some embodiments, the workbench is provided with a chute, the lower end of the second fixing plate is provided with a sliding block which can move in the chute, the sliding block is provided with a locking nut, and the second fixing plate is fixed in the chute through the locking nut.
In some embodiments, the chute is one of a T-shaped chute, a rectangular chute, a trapezoidal chute.
In some embodiments, the sliding block has the same shape as the sliding groove, and the sliding block moves smoothly in the sliding groove.
In some embodiments, the sound insulation box is provided with a first decibel tester on the inner side and a second decibel Bei Ceshi tester on the outer side.
In some embodiments, the second fixing plate material is a rigid material or an elastic material.
In some embodiments, the first fixing plate is fixedly connected to the workbench, and the second fixing plate moves smoothly in a chute of the workbench.
Compared with the prior art, the utility model has the beneficial effects that: (1) The workbench of the detection device is provided with a chute, so that transmission shafts with different lengths can be detected; (2) Abnormal sound caused by vibration of the transmission shaft at different rotating speeds can be detected through the decibel tester, and whether the vibration of the transmission shaft is in a reasonable range can be obtained through noise decibel; (3) The detection device has a simple structure, can be spliced and used everywhere, has small occupied area, is convenient for detection operation, and is more friendly to overhaul links; (4) The second fixing plate is made of elastic materials, so that the jolt state of the automobile in the running process can be simulated.
Drawings
FIG. 1 is a schematic diagram of a vibration abnormal sound detection device for an automobile transmission shaft;
FIG. 2 is a top view of the sound box of the present utility model;
fig. 3 is a partial enlarged view of a in fig. 1.
Description of the drawings: 1. a work table; 2. a sound insulation box; 3. a first decibel tester; 4. a second scallop tester; 5. a compression nut; 6. a driving motor; 7. a first fixing plate; 8. a first coupling; 9. a transmission shaft; 10. a second coupling; 11. a second fixing plate; 12. a sliding block; 13. a lock nut; 14. a chute; 15. and a sealing gasket.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.
As shown in fig. 1-3, the vibration abnormal sound detection device for the automobile transmission shaft comprises a workbench 1, a driving motor 6 positioned on the workbench 1, a first fixing plate 7, a transmission shaft 9 and a second fixing plate 11, wherein the sound insulation box 2 is sleeved outside the driving motor 6, the first fixing plate 7 and the second fixing plate 11 and is used in sealing fit with the workbench 1, and the sound insulation box 2 can be transparent.
The rotating shaft of the driving motor 6 penetrates through the first fixing plate 7 and is connected with one end of the transmission shaft 9 through the first coupler 8, the second coupler 10 is arranged on the second fixing plate 11, the second coupler 10 is connected with the other end of the transmission shaft 9, and the transmission shaft 9 is driven to rotate by the driving motor 6.
A sealing gasket 15 is arranged between the workbench 1 and the sound insulation box 2, and the workbench 1 is tightly connected with the sound insulation box 2 through a plurality of compression nuts 5.
The workbench 1 is provided with a chute 14, the lower end of the second fixing plate 11 is provided with a sliding block 12 which can move in the chute 14, the sliding block 12 is provided with a lock nut 13, and the second fixing plate 11 is fixed in the chute 14 through the lock nut 13.
The chute 14 is one of a T-shaped chute, a rectangular chute and a trapezoidal chute, and the T-shaped chute is preferred in this embodiment.
The shape of the sliding block 12 is the same as that of the sliding groove 14, and the sliding block 12 moves smoothly in the sliding groove 14. The first fixing plate 7 is fixedly connected to the workbench 1, and the second fixing plate 7 moves smoothly in the chute 14 of the workbench 1. The sliding groove 14 is only partially formed in the workbench 1, and the second fixing plate 11 can slide, so that the detection device can be used for detecting transmission shafts with different lengths, and the application range is wider.
Working principle: and the second fixing plate 11 is moved, a proper distance is selected, the transmission shaft 9 is arranged on the workbench 1, the sound insulation box 2 is in sealing connection with the workbench 1, then the driving motor 6 is started to drive the transmission shaft 9 to rotate, and the vibration condition of the transmission shaft 9 at different rotating speeds is observed through the sound insulation box 2.
The inside of the sound insulation box 2 is provided with a first decibel tester 3, and the outside is provided with a second component Bei Ceshi tester 4. When the transmission shaft 9 starts to work, the first decibel tester 3 and the second decibel tester Bei Ceshi can detect abnormal sound of the transmission shaft 9 during rotation. According to the different materials of the sound insulation box 2, the noise decibels measured by a driver and a passenger through the decibel tester can be simulated to judge whether the transmission shaft 9 has abnormal sound or not. For example, in this embodiment, when the transmission shaft 9 rotates at a high speed and generates vibration, the data measured by the first db tester 3 is compared with the data measured by the second fraction Bei Ceshi meter 4, when the vibration is within a reasonable range, the data measured by the db tester is recorded, and when the vibration amplitude is large and abnormal noise is generated, the data measured by the db tester at this time is recorded. Through the series of data, the maximum vibration amplitude which can be tolerated by each transmission shaft in each batch of each model can be summarized, and whether the transmission shafts accord with the use standard is judged. After collecting a large amount of test data, vibration and abnormal sound of the transmission shaft can be judged directly through the decibel tester, and faults can be rapidly cleared for a vehicle maintenance link.
As shown in table 1, for a certain brand of automobile, multiple sets of data (including a first db tester 3 and a second db Bei Ceshi tester 4) and noise db values when the transmission shaft generates abnormal vibration can be obtained by using db testers for transmission shafts of different models, and recorded and made into standard table data. When the transmission shaft is required to be detected, whether the transmission shaft has problems or not can be directly judged according to the decibel value, so that the working efficiency is greatly improved, and the vehicle maintenance link can be more rapidly checked for faults.
Table 1 summary table of different types of transmission shaft vibration abnormal sound decibel values
The second fixing plate 11 is made of a rigid material or an elastic material. In general, the second fixing plate 11 may be made of a rigid material. If the simulation transmission shaft is in the driving process of the vehicle, the damping system arranged on the rear axle of the vehicle can rebound the transmission shaft, and the second fixing plate 11 can be made of elastic materials. The elastic material can be judged according to the rebound resilience of the material, the elastic material can offset the vibration amplitude of a part of transmission shafts, and the measured data is more real and reliable.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The vibration abnormal sound detection device of the automobile transmission shaft is characterized by comprising a workbench, a driving motor, a first fixing plate, a transmission shaft and a second fixing plate, wherein the driving motor, the first fixing plate, the transmission shaft and the second fixing plate are arranged on the workbench, and a sound insulation box is sleeved on the outer sides of the driving motor, the first fixing plate and the second fixing plate and is used in sealing fit with the workbench;
the rotating shaft of the driving motor penetrates through the first fixing plate and is connected with one end of the transmission shaft through the first coupler, the second fixing plate is provided with a second coupler, the second coupler is connected with the other end of the transmission shaft, and the transmission shaft is driven by the driving motor to rotate;
and a sealing gasket is arranged between the workbench and the sound insulation box, and the workbench is tightly connected with the sound insulation box through a plurality of compression nuts.
2. The device for detecting abnormal vibration and noise of the transmission shaft of the automobile according to claim 1, wherein the workbench is provided with a chute, the lower end of the second fixing plate is provided with a sliding block which can move in the chute, the sliding block is provided with a locking nut, and the second fixing plate is fixed in the chute through the locking nut.
3. The device for detecting abnormal vibration of a transmission shaft of an automobile according to claim 2, wherein the chute is one of a T-shaped chute, a rectangular chute and a trapezoidal chute.
4. The device for detecting abnormal vibration of a transmission shaft of an automobile according to claim 3, wherein the sliding block has the same shape as the sliding groove, and the sliding block moves smoothly in the sliding groove.
5. The device for detecting abnormal vibration and noise of the transmission shaft of the automobile according to claim 1, wherein the sound insulation box is provided with a first decibel tester on the inner side and a second component Bei Ceshi on the outer side.
6. The device for detecting abnormal vibration of a propeller shaft of an automobile as set forth in claim 4, wherein the second fixing plate is made of a rigid material or an elastic material.
7. The device for detecting abnormal vibration and noise of a transmission shaft of an automobile according to claim 4, wherein the first fixing plate is fixedly connected to the workbench, and the second fixing plate moves smoothly in a sliding groove of the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185665.5U CN219675472U (en) | 2023-05-17 | 2023-05-17 | Automobile transmission shaft vibration abnormal sound detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185665.5U CN219675472U (en) | 2023-05-17 | 2023-05-17 | Automobile transmission shaft vibration abnormal sound detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219675472U true CN219675472U (en) | 2023-09-12 |
Family
ID=87924555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321185665.5U Active CN219675472U (en) | 2023-05-17 | 2023-05-17 | Automobile transmission shaft vibration abnormal sound detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219675472U (en) |
-
2023
- 2023-05-17 CN CN202321185665.5U patent/CN219675472U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201800 Building 1, 485 Xiangjiang Road, Jiading District, Shanghai Patentee after: Weikai (Shanghai) Testing Technology Co.,Ltd. Address before: 200000 Building 1, 485 Xiangjiang Road, Jiading District, Shanghai Patentee before: Guangjiayuan Weikai (Shanghai) Testing Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |