Device for torsional vibration test of new energy vehicle

Abstract

The utility model provides a device for a torsional vibration test of a new energy vehicle. The device for the torsional vibration test of the new energy vehicle comprises a shock absorber and a gearbox shell, the signal panel comprises a signal panel body, the signal panel body is arranged between a shock absorber and a gearbox shell, the thickness of the signal panel body is 2 mm, the signal panel body is made of an aluminum alloy material, and a plurality of cutting teeth are arranged on the outer surface of the signal panel body; the signal panel comprises a signal panel body and a through hole, the through hole is formed in the middle of one end of the signal panel body, a limiting opening is formed in the inner wall of the through hole, a plurality of weight reduction openings are formed in the front face of the signal panel body, and a signal panel patch is installed at one end of the signal panel body. According to the device for the torsional vibration test of the new energy vehicle provided by the utility model, the installation space of the torsional vibration test signal panel body is smaller through the design, a hybrid vehicle model with a compact structure can be tested, the inertia of the signal panel body is smaller than that of a common signal panel, and the influence on a test result is smaller.

Description

Technical Field

[0001] This utility model relates to the field of torsional vibration testing technology for new energy vehicles, and in particular to a device for torsional vibration testing of new energy vehicles. Background Technology

[0002] Torsional vibration is caused by the main engine transmitting power to the propeller through the shaft system, resulting in unequal torsional angles between different shaft segments and causing the shaft segments to swing back and forth. For torsional vibration, since the crankshaft is relatively long and has low torsional stiffness, and the rotational inertia of the crankshaft shaft system is relatively large, the frequency of crankshaft torsional vibration is relatively low, and resonance is easily generated within the operating speed range of the internal combustion engine.

[0003] Torsional vibration testing is an important method to confirm the resonance of the transmission system. Traditional fuel vehicles can directly monitor the input shaft gear signal to perform torsional vibration testing. However, due to the strong magnetic field inside the hybrid gearbox of new energy vehicles, it will interfere with the sensor and cause the test data to be distorted. For new energy vehicles, a signal disk device with a thickness of about 5mm is usually artificially made and installed on the input shaft and at the rear end of the shock absorber.

[0004] Because the hybrid gearboxes of current new energy vehicles have a compact structure and insufficient axial space, it is impossible to install a thicker signal disk device, which makes it impossible to conduct torsional vibration tests.

[0005] Therefore, it is necessary to provide a device for torsional vibration testing of new energy vehicles to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a device for torsional vibration testing of new energy vehicles, which solves the problem that torsional vibration testing cannot be performed because the hybrid gearbox structure of current new energy vehicles is compact and the axial space is insufficient to install a thicker signal disk device.

[0007] To solve the above-mentioned technical problems, the device for torsional vibration testing of new energy vehicles provided by this utility model includes: a shock absorber and a gearbox housing;

[0008] The signal disc body is disposed between the shock absorber and the gearbox housing. The thickness of the signal disc body is 2mm. The signal disc body is made of aluminum alloy. The outer surface of the signal disc body has multiple cutting teeth.

[0009] The perforation is located at the middle of one end of the signal disk body. A limit port is provided on the inner wall of the perforation. Multiple weight reduction ports are provided on the front of the signal disk body. A signal disk patch is installed at one end of the signal disk body.

[0010] The perforations run through both ends of the signal disk body. The number of signal disk patches depends on the requirements. The cutting teeth are used to cut the magnetic field generated by the sensor.

[0011] Preferably, a rotating shaft is installed inside the perforation, and a limit strip is provided on the outer surface of the rotating shaft;

[0012] The limit bar and the rotating shaft are integrated.

[0013] Preferably, both ends of the rotating shaft are rotatably connected to rotating heads, and the limiting strip is inserted into the limiting opening;

[0014] The rotating head facilitates the connection of the rotating shaft to the shock absorber and gearbox housing.

[0015] Preferably, a shaped signal disk is mounted on the outer surface of the rotating shaft, and a plurality of mounting frames are mounted on one side of the shaped signal disk. The front of the mounting frame is provided with an opening, and a row of fixing holes is provided on one side of each mounting frame.

[0016] The signal disk body has multiple openings at one end for mounting frame installation. The irregular-shaped signal disk is shaped like a rice grain. The connection method between the irregular-shaped signal disk and the rotating shaft is the same as that of the signal disk body.

[0017] Preferably, each of the mounting frames is equipped with a slide rod inside, and a slider is slidably connected to the outer surface of the slide rod. An auxiliary spring is installed at the top and bottom of each slider.

[0018] The auxiliary spring is located on the outer surface of the slider, and the front of the slider has a hole for threaded connection with the screw. The screw passes through the fixing hole to fix the slider in the corresponding position.

[0019] Preferably, a mounting plate is fixedly connected to the front of the slider, and threaded holes are provided on the front of each mounting plate.

[0020] The mounting plate does not affect the connection between the screw and the slider.

[0021] Preferably, a mounting bracket is mounted on the front side of the mounting plate by fixing bolts, the outer surface of the mounting bracket is fixedly connected to the mounting ring, and a signal disk patch is adsorbed on the front side of the mounting ring.

[0022] Compared with related technologies, the device for torsional vibration testing of new energy vehicles provided by this utility model has the following beneficial effects:

[0023] This invention provides a device for torsional vibration testing of new energy vehicles. To facilitate torsional vibration testing of new energy vehicles, a 2mm aluminum alloy signal disk body is used to reduce inertia. Magnetic patches are used to enhance the sensing of rotational speed signals. By attaching the signal disk patches close to the signal disk body and the vibration damper side, the usable space is reduced. Combining these methods, the goal is to complete the torsional vibration test with a smaller installation space and less inertia. Furthermore, multiple cutting teeth are formed on the outer surface of the signal disk body to cut the magnetic field generated by the sensor. A perfect circle would not be able to cut the magnetic field. This design makes the installation space of the torsional vibration test signal disk body smaller, which can meet the testing requirements of compact hybrid vehicles. The inertia of the signal disk body is smaller than that of a typical signal disk, resulting in less impact on the test results. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the first embodiment of the device for torsional vibration testing of new energy vehicles provided by this utility model;

[0025] Figure 2 A schematic diagram of the signal disk patch is provided for this utility model;

[0026] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0027] Figure 4 A schematic diagram of the second embodiment of the device for torsional vibration testing of new energy vehicles provided by this utility model;

[0028] Figure 5 A schematic diagram of the slide bar is provided for this utility model;

[0029] Figure 6 Provided for this utility model Figure 5 A magnified view of point B shown.

[0030] The following are the labels in the diagram: 1. Shock absorber, 2. Gearbox housing, 3. Signal disc body, 4. Rotating head, 5. Rotating shaft, 6. Limiting strip, 7. Weight reduction port, 8. Cutting teeth, 9. Signal disc patch, 10. Limiting port, 11. Through hole, 12. Mounting frame, 13. Slide rod, 14. Movable port, 15. Slider, 16. Mounting piece, 17. Fixing bolt, 18. Mounting ring, 19. Auxiliary spring, 20. Mounting bracket, 21. Threaded hole, 22. Fixing hole, 23. Irregularly shaped signal disc. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the device for torsional vibration testing of new energy vehicles provided by this utility model; Figure 2 A schematic diagram of the signal disk patch is provided for this utility model; Figure 3 Provided for this utility model Figure 2 The enlarged view at point A is shown. The device used for torsional vibration testing of new energy vehicles includes: a vibration damper 1 and a gearbox housing 2;

[0034] The signal disc body 3 is disposed between the shock absorber 1 and the gearbox housing 2. The thickness of the signal disc body 3 is 2mm. The signal disc body 3 is made of aluminum alloy. Multiple cutting teeth 8 are formed on the outer surface of the signal disc body 3.

[0035] A perforation 11 is provided at the middle of one end of the signal disk body 3. A limit opening 10 is provided on the inner wall of the perforation 11. Multiple weight reduction openings 7 are provided on the front of the signal disk body 3. A signal disk patch 9 is installed at one end of the signal disk body 3.

[0036] The perforation 11 passes through both ends of the signal disk body 3. The number of signal disk patches 9 depends on the requirements. The cutting teeth 8 are used to cut the magnetic field formed by the sensor. If it is a complete circle, it is impossible to cut the magnetic field.

[0037] A rotating shaft 5 is installed inside the perforation 11, and a limit strip 6 is provided on the outer surface of the rotating shaft 5;

[0038] The limiting strip 6 and the rotating shaft 5 are integrated.

[0039] Both ends of the rotating shaft 5 are rotatably connected to rotating heads 4, and the limiting strip 6 is inserted into the limiting port 10;

[0040] The rotating head 4 facilitates the connection of the rotating shaft 5 with the shock absorber 1 and the gearbox housing 2.

[0041] The working principle of the device for torsional vibration testing of new energy vehicles provided by this utility model is as follows:

[0042] The inertia is reduced by using aluminum alloy to make the 2mm signal disk body 3. The rotational speed signal is enhanced by using magnetic patches. The space required for use is reduced by attaching the signal disk patch 9 close to the signal disk body 3 and the vibration damper 1. By combining the above methods, the torsional vibration test can be completed with a smaller installation space and less inertia. In addition, multiple cutting teeth 8 are opened on the outer surface of the signal disk body 3 to cut the magnetic field formed by the sensor. If it is a whole circle, it is impossible to cut the magnetic field.

[0043] Compared with related technologies, the device for torsional vibration testing of new energy vehicles provided by this utility model has the following beneficial effects:

[0044] To facilitate torsional vibration testing of new energy vehicles, a 2mm aluminum alloy signal disk body 3 is used to reduce inertia. The signal disk patch 9 and cutting teeth 8 work together to enhance the speed signal sensing. The signal disk patch 9 is placed near the signal disk body 3 and the damper 1 to reduce the usable space. These combined methods achieve the goal of completing torsional vibration testing with less installation space and less inertia. Multiple cutting teeth 8 are formed on the outer surface of the signal disk body 3 to cut the magnetic field generated by the sensor. A perfect circle would not be able to cut the magnetic field. This design makes the installation space of the torsional vibration test signal disk body 3 smaller, which can meet the testing needs of compact hybrid vehicles. The inertia of the signal disk body 3 is smaller than that of a typical signal disk, resulting in less impact on the test results.

[0045] Second Embodiment

[0046] Please refer to the following: Figures 4-5 - Figure 6 , Figure 4 A schematic diagram of the second embodiment of the device for torsional vibration testing of new energy vehicles provided by this utility model; Figure 5 A schematic diagram of the slide bar is provided for this utility model; Figure 6 Provided for this utility model Figure 5 The enlarged view at point B shows an apparatus for torsional vibration testing of new energy vehicles based on the first embodiment of this application. The second embodiment of this application proposes another apparatus for torsional vibration testing of new energy vehicles. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0047] Specifically, the device for torsional vibration testing of new energy vehicles provided in the second embodiment of this application is different in that a non-circular signal disk 23 is installed on the outer surface of the rotating shaft 5, a plurality of mounting frames 12 are installed on one side of the non-circular signal disk 23, an opening 14 is provided on the front of the mounting frame 12, and a row of fixing holes 22 is provided on one side of each mounting frame 12.

[0048] The signal disk body 3 has multiple openings at one end for mounting the mounting frame 12, and the front of the mounting frame 12 is flush with one end of the signal disk body 3.

[0049] Each of the mounting frames 12 has a slide bar 13 installed inside, and a slider 15 is slidably connected to the outer surface of the slide bar 13. An auxiliary spring 19 is installed at the top and bottom of each slider 15.

[0050] The auxiliary spring 19 is located on the outer surface of the slide rod 13. A hole for threaded connection with a screw is opened on one side of the slider 15. The screw passes through the fixing hole 22 to fix the slider 15 in the corresponding position. The top and bottom ends of the slide rod 13 are connected to the top and bottom of the inner wall of the mounting frame 12, respectively.

[0051] The front side of the slider 15 is fixedly connected to the mounting plate 16, and the front side of the mounting plate 16 is provided with threaded holes 21.

[0052] Mounting piece 16 does not affect the connection between screw and slider 15.

[0053] The mounting plate 16 has a mounting bracket 20 mounted on its front side by fixing bolts 17. The outer surface of the mounting bracket 20 is fixedly connected to the mounting ring 18. The front side of the mounting ring 18 has a signal disk patch 9 adsorbed on it.

[0054] The signal disk patch 9, mounting ring 18 and mounting plate 16 have a combined thickness of 2mm. By adjusting the depth of the threaded connection between the fixing bolt 17 and the threaded hole 21, the distance between the mounting bracket 20 and the mounting frame 12 can be adjusted, thereby controlling the distance between the signal disk patch 9 and the mounting frame 12.

[0055] Compared with related technologies, the device for torsional vibration testing of new energy vehicles provided by this utility model has the following beneficial effects:

[0056] To facilitate quick adjustment of the signal disk patch position, multiple openings are made at one end of the signal disk body 3 for mounting the mounting frame 12. The front of the mounting frame 12 has an opening 14 for movement. A slider 13 with a slider 15 and an auxiliary spring 19 is then installed inside the mounting frame 12. A row of fixing holes 22 is made on one side of the mounting frame 12. The slider 15 is fixed in the corresponding position with screws. In actual use, the slider 15 is first adjusted to the corresponding position and then fixed. Then, the magnetic mounting ring 18 is fixed to the front of the mounting plate 16 by the mounting bracket 20 and the fixing bolt 17. Then, the signal disk patch 9 is simply fixed by the magnetic mounting ring 18. When the position of the signal disk patch 9 needs to be adjusted, the signal disk patch 9 is simply removed, and the slider 15 is released, allowing the slider 15 to be adjusted to the corresponding position. This design enables quick adjustment of the position of the signal disk patch 9, which is beneficial to improving the efficiency of torsional vibration testing of new energy vehicles.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for torsional vibration test of new energy vehicles, characterized in that, Include: Damper, gearbox shell; Signal disc body, the signal disc body is arranged between damper and gearbox shell, the thickness of signal disc body is 2mm, signal disc body adopts aluminum alloy material, the outer surface of signal disc body is provided with a plurality of cutting teeth; Perforation, the perforation is located in the middle position in one end of signal disc body, the inner wall of perforation is provided with a limit mouth, the front surface of signal disc body is provided with a plurality of lightening holes, one end of signal disc body is provided with signal disc patch. 2.The device for torsional vibration test of new energy vehicle according to claim 1, characterized in that, The inside of the perforation is provided with a rotating shaft, and the outer surface of the rotating shaft is provided with a limiting strip.

3. The device for torsional vibration test of new energy vehicle according to claim 2, characterized in that, The both ends of the rotating shaft are rotatably connected with rotating heads, and the limiting strip is clamped into the limiting mouth.

4. The device for torsional vibration test of new energy vehicle according to claim 2, characterized in that, The outer surface of the rotating shaft is provided with a special-shaped signal disc, one side of the special-shaped signal disc is provided with a plurality of mounting frames, and the front surface of the mounting frame is provided with a movable mouth.

5. The device for torsional vibration test of new energy vehicle according to claim 4, characterized in that, The inside of each mounting frame is provided with a sliding rod, and the outer surface of the sliding rod is slidably connected with a sliding block.

6. The device for torsional vibration test of new energy vehicle according to claim 5, characterized in that, The top and bottom of each sliding block are provided with auxiliary springs.

7. The device for torsional vibration test of new energy vehicle according to claim 6, characterized in that, The front surface of the sliding block is fixedly connected with a mounting piece, and the front surface of the mounting piece is provided with a threaded hole. The front surface of the mounting piece is provided with a mounting bracket through a fixing bolt, the outer surface of the mounting bracket is fixedly connected with a mounting ring, and the front surface of the mounting ring is adsorbed with a signal disc patch.

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