Dynamic balance detection device for automobile transmission shaft

Abstract

The utility model discloses a dynamic balance detection device for an automobile transmission shaft, and relates to the technical field of transmission shaft detection. The dynamic balance detection device for the automobile transmission shaft comprises a detection platform which is used for providing a stable supporting platform for the whole dynamic balance detection device; the dynamic balance detector is mounted on the left side of the top of the detection table and used for monitoring the unbalance amount of the transmission shaft in the rotating process in real time and analyzing the unbalance amount; the mounting assembly is mounted at the top of the detection table and is used for providing a supporting foundation for mounting the transmission shaft; the supporting assembly is fixedly installed between the two installation assemblies and used for providing a supporting foundation for installation of the transmission shaft; by arranging the supporting assembly, the height can be flexibly adjusted according to transmission shafts of different specifications, stable and accurate supporting is provided for the transmission shafts, the installation difficulty is greatly reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission shaft testing technology, specifically to a dynamic balancing testing device for automotive transmission shafts. Background Technology

[0002] A car's performance is closely related to the quality and working condition of many components. Among them, the driveshaft, as a key component for transmitting power, plays a decisive role in the smooth operation of the car due to its dynamic balance. During vehicle operation, the driveshaft rotates at high speed. If there is a dynamic imbalance, it will generate severe vibration and noise. This vibration will not only seriously affect the comfort of the driver and passengers, but also accelerate the wear of the driveshaft and its connecting parts, shorten the service life of the components, and may even cause safety hazards.

[0003] Publication number CN222579488U discloses a dynamic balancing testing device for automotive drive shafts, including a workbench. A protective shell is fixedly connected to the upper surface of the workbench, and a dynamic balancing tester is installed on the left side wall of the workbench. In the event of an accidental detachment, the protective door prevents direct injury to personnel from the rotating shaft, thereby improving the safety of the testing.

[0004] As shown in the above technical solution, although the device can prevent the drive shaft from falling off and causing injury to personnel, the lack of a flexible and stable support structure when installing the drive shaft makes the installation process cumbersome. It may require a lot of manpower and time to adjust the position of the drive shaft, making it difficult to quickly and accurately install it into the appropriate detection position, which reduces the detection efficiency to some extent. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a dynamic balancing testing device for automotive drive shafts, solving the problem of difficult drive shaft installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dynamic balancing testing device for automotive drive shafts, comprising:

[0007] The testing platform is used to provide a stable support platform for the entire dynamic balancing testing device;

[0008] A dynamic balancing tester is fixedly installed on the left side of the top of the test platform. The dynamic balancing tester is used to monitor and analyze the imbalance of the transmission shaft during rotation in real time.

[0009] Two mounting components, one of which is fixedly mounted on the left side of the top of the testing platform and located on the right side of the dynamic balancing instrument, and the other of which is slidably mounted on the right side of the top of the testing platform, the two mounting components being used to provide a support base for mounting the drive shaft;

[0010] A support assembly is fixedly installed between two mounting assemblies, the support assembly serving to provide a support base for mounting the drive shaft.

[0011] Preferably, both of the mounting components include a mounting platform, which is mounted on top of the testing station, and a mounting ring is rotatably mounted on the upper end of the mounting platform.

[0012] Preferably, the support assembly includes a third lead screw, which is rotatably mounted on the top of the worktable. A support sleeve is threaded onto the upper end of the third lead screw. Two sliding support members are fixedly mounted on the top of the worktable. Both ends of the support sleeve are slidably mounted within the sliding support members. A third bevel gear is fixedly mounted on the bottom of the third lead screw within the worktable. A fourth bevel gear, meshing with the third bevel gear, is rotatably mounted within the worktable. A fourth knob is rotatably mounted on the front end of the worktable. The fourth bevel gear is fixedly connected to the fourth knob.

[0013] Preferably, both mounting components are equipped with clamping components, each clamping component including a first bevel gear, which is rotatably mounted inside the mounting ring. Four second bevel gears, centrally symmetrically distributed, are rotatably mounted inside the mounting ring. The four second bevel gears are meshed with the first bevel gears, and the tops of the four second bevel gears are fixedly connected to the bottom of the first lead screw. One end of the first threaded block is threadedly mounted on the upper end of the first lead screw, and the first threaded block is slidably mounted on the mounting ring. The other end of the first threaded block is fixedly mounted with a clamping block.

[0014] Preferably, each clamping assembly further includes a worm gear, with two worm gears rotatably mounted on the inner ends of the two mounting rings respectively. The worm gears pass through the mounting rings and are fixedly connected to the first bevel gear. A worm is rotatably mounted on the mounting platform, with the worm gear meshing with the worm. A first knob is fixedly mounted on the top of the worm through the mounting platform.

[0015] Preferably, each of the two mounting components is equipped with a drive assembly, the drive assembly including a gear ring, the gear ring being fixedly mounted on the outer end of the mounting ring, a spur gear being rotatably mounted on the outer end of the mounting platform, the gear ring meshing with the spur gear, and a motor being fixedly mounted on the inner end of the mounting platform, the output end of the motor passing through the mounting platform and being fixedly connected to the spur gear.

[0016] Preferably, the testing platform has a sliding groove, in which a second lead screw is rotatably installed. A second knob is rotatably installed at one end of the testing platform. The second knob passes through the testing platform and is fixedly connected to the second lead screw. The mounting platform located on the right side of the testing platform is threaded onto the second lead screw.

[0017] Preferably, a protective chamber is fixedly installed on the testing platform, both of the installation components are located inside the protective chamber, a protective door is rotatably installed at the front end of the protective chamber by means of a hinge, and an observation window is fixedly installed on the protective door.

[0018] Beneficial effects

[0019] This invention provides a dynamic balancing testing device for automotive drive shafts. Compared with existing technologies, it has the following advantages:

[0020] 1. This automotive driveshaft dynamic balancing testing device, through the setting of support components, can flexibly adjust its height according to different specifications of driveshafts, providing them with stable and precise support, greatly reducing installation difficulty and improving installation efficiency; during the dynamic balancing testing stage, the support components can quickly descend, completely avoiding the rotation path of the driveshaft, avoiding any interference with the testing process, thereby ensuring that the dynamic balancing tester can accurately capture the imbalance of the driveshaft itself, providing accurate and reliable data support for subsequent analysis and correction, effectively improving the accuracy and reliability of the test.

[0021] 2. This automotive driveshaft dynamic balancing testing device allows the installation platform to be adjusted by rotating the second knob, enabling the testing device to adapt to driveshafts of different lengths, greatly improving the device's applicability and increasing its flexibility and practicality. The design of the protective compartment and protective door can prevent operators from accidentally coming into contact with dangerous components such as high-speed rotating driveshafts, ensuring the personal safety of operators. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation component and drive component in this utility model;

[0025] Figure 4 This is a partial structural diagram of the mounting and clamping components in this utility model. Figure 1 ;

[0026] Figure 5This is a partial structural diagram of the mounting and clamping components in this utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram of the support component in this utility model.

[0028] In the diagram: 1. Testing platform; 2. Support assembly; 21. Third lead screw; 22. Support sleeve; 23. Sliding support; 24. Third bevel gear; 25. Fourth bevel gear; 26. Fourth knob; 3. Mounting assembly; 31. Mounting platform; 32. Mounting ring; 4. Clamping assembly; 41. First bevel gear; 42. Second bevel gear; 43. First lead screw; 44. First threaded block; 45. Clamping block; 46. Worm gear; 47. Worm; 48. First knob; 5. Drive assembly; 51. Gear ring; 52. Spur gear; 53. Motor; 6. Slide groove; 7. Second lead screw; 8. Second knob; 9. Protective chamber; 10. Protective door; 11. Observation window; 12. Dynamic balancing tester. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figures 1-6 This utility model provides the following two technical solutions:

[0031] First embodiment: A dynamic balancing testing device for automotive drive shafts, comprising:

[0032] Testing platform 1 provides a stable support platform for the entire dynamic balancing testing device.

[0033] The dynamic balancing tester 12 is fixedly installed on the left side of the top of the test platform 1. The dynamic balancing tester 12 is used to monitor and analyze the imbalance of the transmission shaft during rotation in real time.

[0034] Two mounting components 3 are provided. One mounting component 3 is fixedly installed on the left side of the top of the test table 1 and located on the right side of the dynamic balancing tester 12. The other mounting component 3 is slidably installed on the right side of the top of the test table 1. Both mounting components 3 include a mounting platform 31, which is installed on the top of the test table 1. A mounting ring 32 is rotatably installed on the upper end of the mounting platform 31. The two mounting components 3 are used to provide a support base for the installation of the drive shaft.

[0035] Support assembly 2 is fixedly installed between two mounting assemblies 3. Support assembly 2 is used to provide a support base for the installation of the drive shaft. Support assembly 2 includes a third lead screw 21, which is rotatably installed on the top of the worktable. A support sleeve 22 is threaded onto the upper end of the third lead screw 21. Two sliding support members 23 are fixedly installed on the top of the worktable. The front and rear ends of the support sleeve 22 are slidably installed in the sliding support members 23. The bottom of the third lead screw 21 is located inside the worktable and a third bevel gear 24 is fixedly installed. A fourth bevel gear 25 is rotatably installed inside the worktable and meshes with the third bevel gear 24. A fourth knob 26 is rotatably installed at the front end of the worktable. The fourth bevel gear 25 is fixedly connected to the fourth knob 26.

[0036] Two clamping assemblies 4 are respectively mounted on two mounting assemblies 3. Each clamping assembly 4 includes a first bevel gear 41, which is rotatably mounted inside a mounting ring 32. Four centrally symmetrically distributed second bevel gears 42 are rotatably mounted inside the mounting ring 32, and all four second bevel gears 42 are meshed with the first bevel gear 41. The tops of the four second bevel gears 42 are fixedly connected to the bottom of a first lead screw 43. A first threaded block 44 is threaded onto the upper end of the first lead screw 43. The first threaded block 44 is slidably mounted on the mounting ring 32. The other end of the first threaded block 44 is fixedly mounted with a clamping block 45. The inner ends of the two mounting rings 32 are respectively rotatably mounted with two worm gears 46. The worm gears 46 pass through the mounting rings 32 and are fixedly connected to the first bevel gear 41. The worm 47 is rotatably mounted on the mounting platform 31. The worm gears 46 and worm 47 are meshed and connected. The top of the worm 47 passes through the mounting platform 31 and is fixedly mounted with a first knob 48. The clamping assembly 4 is used to clamp the drive shafts of different diameters on the mounting assembly 3.

[0037] Two drive components 5 are respectively installed between two mounting components 3 and two clamping components 4. Each drive component 5 includes a gear ring 51, which is fixedly installed on the outer end of the mounting ring 32. A spur gear 52 is rotatably installed on the outer end of the mounting platform 31. The gear ring 51 and the spur gear 52 are meshed and connected. A motor 53 is fixedly installed on the inner end of the mounting platform 31. The output end of the motor 53 passes through the mounting platform 31 and is fixedly connected to the spur gear 52. The drive components 5 are used to drive the transmission shaft on the mounting component 3 to rotate.

[0038] The testing platform 1 serves as the foundation of the entire device, providing stable support for components such as the dynamic balancing tester 12 and the mounting assembly 3. The mounting platform 31 in the mounting assembly 3 is mounted on top of the testing platform 1, and the mounting ring 32 can rotate on the mounting platform 31, providing a basic support structure for the subsequent installation and rotation of the drive shaft. Rotating the fourth knob 26 provides initial power for adjusting the height of the entire support assembly 2. Since the fourth bevel gear 25 is fixedly connected to the fourth knob 26, rotating the fourth knob 26 will cause the fourth bevel gear 25 to rotate accordingly. When the fourth bevel gear 25 rotates, according to... The principle of bevel gear transmission drives the third bevel gear 24, which meshes with it, to rotate. This bevel gear transmission method can change the transmission direction, converting horizontal rotational motion into vertical rotational motion, causing the third lead screw 21 to start rotating. When the third lead screw 21 rotates, according to the principle of lead screw transmission, the support sleeve 22 will move linearly along the axial direction of the third lead screw 21. At the same time, both the front and rear ends of the support sleeve 22 are slidably installed in the sliding support member 23. The sliding support member 23 restricts the rotation of the support sleeve 22, ensuring that the support sleeve 22 can only move vertically. The movement allows for adjustment of the support height. Rotating the first knob 48 drives the worm gear 47 to rotate. Since the worm wheel 46 is meshed with the worm gear 47, it rotates. The worm wheel 46 is fixedly connected to the first bevel gear 41, which in turn drives the first bevel gear 41 to rotate. The first bevel gear 41 meshes with four second bevel gears 42, causing the four second bevel gears 42 to rotate synchronously. The first lead screw 43 at the top of the second bevel gear 42 rotates with the second bevel gear 42. The first lead screw 43 is threadedly connected to the first threaded block 44. Under the action of the threaded transmission, the first threaded block 44... Sliding along the mounting ring 32, the clamping block 45 moves, thus clamping and fixing transmission shafts of different diameters; by starting the motor 53, its output end drives the spur gear 52 to rotate, the spur gear 52 meshes with the gear ring 51, the gear ring 51 is fixed on the outer end of the mounting ring 32, thus driving the mounting ring 32 to rotate, thereby causing the transmission shaft mounted on the clamping assembly 4 to rotate; during the rotation of the transmission shaft, the dynamic balance tester 12 monitors the rotation of the transmission shaft in real time, and judges the dynamic balance state of the transmission shaft by measuring and analyzing the unbalance generated by the transmission shaft during rotation.

[0039] In this embodiment, the support component 2 provides a stable support base for the drive shaft during installation, keeping the drive shaft in a relatively fixed position during installation. It can also flexibly adjust its height according to different diameter drive shafts, facilitating the installation of the drive shaft onto the two mounting components 3, reducing installation difficulty and improving efficiency. During testing, the support component 2 can lower itself, eliminating contact with the drive shaft or interference with its rotation. This ensures the drive shaft rotates freely during testing, accurately reflecting its imbalance state and allowing the dynamic balancing instrument 12 to obtain accurate imbalance data. This avoids deviations in test results due to the presence of the support component 2, improving the accuracy and reliability of the test. The clamping component 4 can adaptively adjust according to different drive shaft diameters, enabling clamping of drive shafts of various specifications and improving the versatility of the testing device. The dynamic balancing instrument 12 monitors the imbalance of the drive shaft in real time, accurately analyzing its dynamic balance state, providing precise data support for adjustment and repair, and ensuring the accuracy of the test results.

[0040] The second embodiment differs from the first embodiment in that: a slide groove 6 is provided on the testing table 1, a second lead screw 7 is rotatably installed in the slide groove 6, a second knob 8 is rotatably installed at one end of the testing table 1, the second knob 8 passes through the testing table 1 and is fixedly connected to the second lead screw 7, and the mounting platform 31 located on the right side of the testing table 1 is threaded onto the second lead screw 7.

[0041] A protective chamber 9 is fixedly installed on the testing table 1. Both mounting components 3 are located inside the protective chamber 9. A protective door 10 is rotatably installed at the front end of the protective chamber 9 by means of a hinge. An observation window 11 is fixedly installed on the protective door 10.

[0042] When the second knob 8 is turned, the second lead screw 7 rotates accordingly. The mounting platform 31 located on the right side of the testing table 1 is threaded onto the second lead screw 7. According to the principle of threaded transmission, when the second lead screw 7 rotates, the mounting platform 31 will move linearly along the direction of the slide groove 6 on the second lead screw 7. In this way, the distance between the two mounting platforms 31 can be adjusted to meet the installation requirements of drive shafts of different lengths. The protective chamber 9 is fixedly installed on the testing table 1, containing the two mounting components 3, and protecting the internal mounting components 3, clamping components 4, drive components 5, and other components. The protective door 10 is hinged and rotatably installed at the front end of the protective chamber 9. When it is necessary to install or remove the drive shaft, the protective door 10 can be opened. After the operation is completed, the protective door 10 can be closed. The observation window 11 on the protective door 10 is made of transparent material, allowing the operator to observe the testing status of the drive shaft inside the protective chamber 9 without opening the protective door 10.

[0043] In this embodiment, the position of the mounting platform 31 is adjusted by rotating the second knob 8, allowing the detection device to adapt to the installation of drive shafts of different lengths, greatly improving the applicability of the device and increasing its flexibility and practicality. The protective chamber 9 can prevent dust, debris, etc. from entering the device, avoiding damage to components such as the mounting assembly 3, clamping assembly 4, and drive assembly 5, extending the service life of the device, and also reducing the possibility of affecting the detection accuracy due to external interference. The protective door 10 is closed when the detection device is running, which can prevent operators from accidentally coming into contact with dangerous components such as high-speed rotating drive shafts, ensuring the personal safety of operators.

[0044] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0045] In use, open the protective door 10 at the front of the protective chamber 9. Based on the length of the drive shaft to be tested, rotate the second knob 8. Adjust the position of the mounting platform 31 located on the right side of the testing platform 1 by rotating the second lead screw 7, ensuring the distance between the two mounting platforms 31 is suitable for drive shaft installation. Place the drive shaft on the support assembly 2 between the mounting rings 32 of the two mounting components 3. By rotating the fourth knob 26, the fourth bevel gear 25 will rotate, thereby driving the meshing third bevel gear 24 to rotate, causing the third lead screw 21 to start rotating. When the third lead screw 21 rotates, the support sleeve 22 will move linearly along the axial direction of the third lead screw 21. Both the front and rear ends of the support sleeve 22 are slidably mounted in the sliding support member 23. The sliding support member 23 restricts the rotation of the support sleeve 22, ensuring that the support sleeve 22 can only move vertically, thus achieving adjustment of the support height. By rotating the first knob on the two mounting components 3... Button 48 drives the worm gear 46 to rotate via worm 47, which in turn causes the first bevel gear 41 to rotate. The four second bevel gears 42 meshing with the first bevel gear 41 rotate synchronously, driving the first lead screw 43 to rotate. This causes the first threaded block 44 to slide along the mounting ring 32, which in turn moves the clamping block 45 until the clamping block 45 firmly clamps the drive shaft. The protective door 10 of the protective chamber 9 is then closed to ensure the safety of the operator. Motor 53 is started, and the output end of motor 53 drives the spur gear 52 to rotate. The spur gear 52 meshes with the gear ring 51, causing the mounting ring 32 to rotate, thereby driving the drive shaft mounted on the clamping assembly 4 to rotate. The dynamic balancing tester 12 monitors the imbalance of the drive shaft during rotation in real time and analyzes and processes the data. After the dynamic balancing tester 12 completes the test, it records the test results. Based on the detected imbalance and position, the drive shaft is adjusted or repaired accordingly, such as adding or removing counterweights.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic balancing testing device for automotive drive shafts, characterized in that, include: The testing platform is used to provide a stable support platform for the entire dynamic balancing testing device; A dynamic balancing tester is fixedly installed on the left side of the top of the test platform. The dynamic balancing tester is used to monitor and analyze the imbalance of the transmission shaft during rotation in real time. Two mounting components, one of which is fixedly mounted on the left side of the top of the testing platform and located on the right side of the dynamic balancing instrument, and the other of which is slidably mounted on the right side of the top of the testing platform, the two mounting components being used to provide a support base for mounting the drive shaft; A support assembly is fixedly installed between two mounting assemblies, the support assembly serving to provide a support base for mounting the drive shaft.

2. The automotive driveshaft dynamic balancing testing device according to claim 1, characterized in that: Both of the mounting components include a mounting platform, which is mounted on top of the testing station, and a mounting ring is rotatably mounted on the upper end of the mounting platform.

3. The automotive drive shaft dynamic balancing testing device according to claim 2, characterized in that: The support assembly includes a third lead screw, which is rotatably mounted on the top of the worktable. A support sleeve is threaded onto the upper end of the third lead screw. Two sliding support members are fixedly mounted on the top of the worktable. Both ends of the support sleeve are slidably mounted within the sliding support members. A third bevel gear is fixedly mounted on the bottom of the third lead screw within the worktable. A fourth bevel gear, meshing with the third bevel gear, is rotatably mounted within the worktable. A fourth knob is rotatably mounted on the front end of the worktable. The fourth bevel gear is fixedly connected to the fourth knob.

4. The automotive driveshaft dynamic balancing testing device according to claim 3, characterized in that: Both mounting components are equipped with clamping components, each including a first bevel gear rotatably mounted inside the mounting ring. Four centrally symmetrically distributed second bevel gears are rotatably mounted inside the mounting ring, each meshing with the first bevel gear. The tops of the four second bevel gears are fixedly connected to the bottom of a first lead screw. A first threaded block is threaded onto the upper end of the first lead screw, and the first threaded block is slidably mounted on the mounting ring. A clamping block is fixedly mounted on the other end of the first threaded block.

5. The automotive driveshaft dynamic balancing testing device according to claim 4, characterized in that: Each clamping assembly also includes a worm gear, with two worm gears rotatably mounted on the inner ends of the two mounting rings respectively. The worm gears pass through the mounting rings and are fixedly connected to the first bevel gear. A worm is rotatably mounted on the mounting platform, with the worm gear meshing with the worm. A first knob is fixedly mounted on the top of the worm through the mounting platform.

6. The automotive driveshaft dynamic balancing testing device according to claim 5, characterized in that: Both mounting components are equipped with drive components, each drive component including a gear ring fixedly mounted on the outer end of the mounting ring. A spur gear is rotatably mounted on the outer end of the mounting platform, and the gear ring meshes with the spur gear. A motor is fixedly mounted on the inner end of the mounting platform, and the output end of the motor passes through the mounting platform and is fixedly connected to the spur gear.

7. The automotive driveshaft dynamic balancing testing device according to claim 6, characterized in that: The testing platform has a sliding groove, in which a second lead screw is rotatably installed. A second knob is rotatably installed at one end of the testing platform. The second knob passes through the testing platform and is fixedly connected to the second lead screw. The mounting platform located on the right side of the testing platform is threaded onto the second lead screw.

8. The automotive driveshaft dynamic balancing testing device according to claim 7, characterized in that: A protective chamber is fixedly installed on the testing platform. Both of the installation components are located inside the protective chamber. A protective door is rotatably installed at the front end of the protective chamber via a hinge. An observation window is fixedly installed on the protective door.

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