A drive shaft torsional vibration test adapter tool

Abstract

This utility model belongs to the technical field of automotive testing equipment and discloses a drive shaft torsional vibration testing adapter. It includes an adapter, comprising a top fixture, a connecting fixture, and a bottom fixture. A through groove is formed in the middle of the connecting fixture, and both the top and bottom fixtures can be slidably connected to the through groove. Both the top and bottom fixtures have multiple first mounting holes, allowing them to be circumferentially fixed to the outside of the connecting fixture using bolts. The top and bottom fixtures also have second and third mounting holes, respectively. A photoelectric sensor is fixed to the outside of the third mounting hole, addressing the problem of inconvenient sensor installation on vehicles with various models.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment technology, specifically to a drive shaft torsional vibration test adapter. Background Technology

[0002] With the continuous development of the automotive industry, the main technological development directions of modern automobiles include: safety, environmental protection, informatization, low cost, and comfort. Among these, ride comfort has become one of the important criteria for evaluating vehicle performance and classifying car grades, and its improvement mainly relies on the development and support of automotive NVH (Noise, Vibration, and Harshness) technology. As one of the main components of the chassis, the driveshaft has a very significant impact on the NVH of the entire vehicle's powertrain system. In addition to generating NVH itself, a single driveshaft also transmits and amplifies the NVH of the entire vehicle's transmission system, and the torsional vibration generated by the driveshaft also affects ride comfort.

[0003] The challenge lies in how to test the torsional vibration of the drive shaft using equipment. Existing sensors are inconvenient to install on vehicles due to the wide variety of models. Therefore, we designed a sensor adapter fixture for testing the torsional vibration of drive shafts in electric drive systems, used to connect the vehicle body and the sensor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drive shaft torsional vibration testing adapter to solve the problem that sensors are inconvenient to install on vehicles for testing due to the wide variety of vehicle models.

[0005] A drive shaft torsional vibration test adapter includes an adapter, which comprises a top adapter, a connecting adapter, and a bottom adapter.

[0006] The connecting fixture has a through groove in the middle. Both the top fixture and the bottom fixture can be slidably connected to the through groove. Both the top fixture and the bottom fixture have multiple first mounting holes. The first mounting holes and the through groove are connected to each other. The top fixture and the bottom fixture have second mounting holes and third mounting holes respectively.

[0007] Furthermore, it also includes: the through groove is a strip-shaped hole.

[0008] Furthermore, it also includes: the first mounting holes on the top fixture and the bottom fixture are of the same size, and any two of the plurality of first mounting holes can be simultaneously aligned with the through slot.

[0009] Furthermore, it also includes: the first mounting holes have three arranged in a triangular shape.

[0010] Furthermore, it also includes: the second mounting hole is located on the top tooling, and the second mounting hole can be used to fix it to the vehicle.

[0011] Furthermore, two through slots are formed on the connecting fixture, and the two through slots are slidably connected to the top fixture and the bottom fixture, respectively.

[0012] Furthermore, the third mounting hole is located on the bottom fixture, and a photoelectric sensor is fixed on the outside of the third mounting hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] As can be seen from the above technical solution, the drive shaft torsional vibration test adapter provided by this utility model is connected to the vehicle through the top fixture, and then the photoelectric sensor is moved and adjusted by the bottom fixture to align with the axis of the drive shaft. The bottom fixture is then fixed by bolt components, which greatly improves the installation range of the photoelectric sensor for the torsional vibration test of the drive shaft of the electric drive system, and can adapt to more torsional vibration tests of the drive shaft of the electric drive system. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a front view of a drive shaft torsional vibration test adapter according to the present invention.

[0017] Figure 2 This is a rear view of a drive shaft torsional vibration test adapter according to the present invention.

[0018] Figure label:

[0019] 1. Adapter fixture; 111. Top fixture; 112. Connecting fixture; 113. Bottom fixture; 2. Through slot; 3. First mounting hole; 4. Second mounting hole; 5. Photoelectric sensor; 6. Third mounting hole. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] like Figure 1-2 As shown, this embodiment provides a drive shaft torsional vibration test adapter, including: adapter 1, the adapter 1 including: top adapter 111, connecting adapter 112 and bottom adapter 113, the top adapter 111 and the bottom adapter 113 are respectively installed at both ends of the connecting adapter 112;

[0022] The connecting fixture 112 has a through groove 2 in the middle, and the through groove (2) is a strip-shaped hole. The top fixture 111 and the bottom fixture 113 can be slidably connected to the through groove 2. There are two through grooves 2, both of which are opened on the connecting fixture 112. The two through grooves 2 are slidably connected to the top fixture 111 and the bottom fixture 113 respectively.

[0023] Both the top fixture 111 and the bottom fixture 113 are provided with a plurality of first mounting holes 3, which are connected to the through groove 2. The top fixture 111 and the bottom fixture 113 are respectively provided with second mounting holes 4 and third mounting holes 6.

[0024] Both the top fixture 111 and the bottom fixture 113 have three first mounting holes 3 arranged in a triangular pattern, allowing them to be circumferentially fixed to the outside of the connecting fixture 112 by bolts, thus adapting to different vehicle installation methods. The top fixture 111 and the bottom fixture 113 each have a second mounting hole 4 and a third mounting hole 6. The second mounting hole 4 is located on the top fixture 111 and can be used to fix it to the vehicle. The third mounting hole 6 is located on the bottom fixture 113, and a photoelectric sensor 5 is fixed to the outside of the third mounting hole 6.

[0025] The method of using this utility model is as follows: When the photoelectric sensor 5 cannot be fixed to the vehicle near the drive shaft during the torsional vibration test of the electric drive system, the adapter 1 for connecting the photoelectric sensor 5 to the vehicle body is required. First, the second mounting hole 4 of the top adapter 111 is bolted to the vehicle body for fixation. Then, the height of the bottom adapter 113 is adjusted so that the photoelectric sensor 5 is aligned with the axis of the drive shaft. Finally, the fixing is completed, thus completing the adapter of the photoelectric sensor 5 to the vehicle body. When it is necessary to adjust the alignment angle of the photoelectric sensor 5, the bottom adapter 113 is rotated so that the photoelectric sensor 5 rotates accordingly to adjust the angle. Then, the first mounting hole 3 is fixed by bolts (not shown in the text).

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A torsional vibration testing adapter for a drive shaft, characterized in that, include: The adapter (1) includes: a top fixture (111), a connecting fixture (112), and a bottom fixture (113). The connecting fixture (112) has a through groove (2) in the middle. The top fixture (111) and the bottom fixture (113) can be slidably connected to the through groove (2). The top fixture (111) and the bottom fixture (113) are provided with multiple first mounting holes (3). The first mounting holes (3) and the through groove (2) are connected. The top fixture (111) and the bottom fixture (113) are respectively provided with second mounting holes (4) and third mounting holes (6).

2. The drive shaft torsional vibration test adapter according to claim 1, characterized in that, The through groove (2) is a strip-shaped hole.

3. The drive shaft torsional vibration test adapter according to claim 2, characterized in that, The first mounting holes (3) on the top fixture (111) and the bottom fixture (113) are the same size, and any two of the multiple first mounting holes (3) can be aligned with the through slot (2) at the same time.

4. The drive shaft torsional vibration test adapter according to claim 3, characterized in that, The first mounting hole (3) has three holes arranged in a triangular shape.

5. The drive shaft torsional vibration test adapter according to claim 1, characterized in that, Also includes: The second mounting hole (4) is located on the top tooling (111) and can be used to fix it to the vehicle.

6. The drive shaft torsional vibration test adapter according to claim 1, characterized in that, Two through slots (2) are opened on the connecting fixture (112), and the two through slots (2) are slidably connected to the top fixture (111) and the bottom fixture (113) respectively.

7. The drive shaft torsional vibration test adapter according to claim 1, characterized in that, The third mounting hole (6) is located on the bottom tooling (113), and a photoelectric sensor (5) is fixed on the outside of the third mounting hole (6).

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