A tooling structure for motor NVH test

Abstract

The utility model provides a tooling structure for motor NVH test, which relates to the technical field of NVH test, including a base, a motor mounting seat installed on the base through an adapter plate, and a bearing seat assembly arranged on a vertical plate of the motor mounting seat. A position adjustment device is arranged on the top of the base, which can adjust the left and right positions of the tooling, and a height adjustment bolt is arranged on the bottom plate of the motor mounting seat, which can adjust the installation height of the tooling. The bearing seat assembly includes a first central axis and a second central axis, a first flange is arranged at one end of the first central axis, and the other end passes through the second flange and is connected to a diaphragm coupling, a second central axis is connected to the diaphragm coupling at one end, and a third flange is arranged at the other end, and the diaphragm coupling can effectively compensate for the alignment defects of the shaft system when the second flange and the third flange are installed, so as to avoid damage to the torque flange of the dynamometer due to insufficient alignment accuracy during the test.

Description

Technical Field

[0001] The utility model relates to the technical field of NVH testing, in particular to a tooling structure used for motor NVH testing. Background Art

[0002] The range extender, which is the power source of the extended-range vehicle, is the main source of noise and vibration of the vehicle. In order to reduce the vibration and noise level of the vehicle, improve the acoustic environment inside the vehicle, and enhance the comfort of the vehicle, NVH (noise, vibration, and harshness) testing related to the range extender is essential.

[0003] In addition to the overall NVH test, conventional range extenders also test the NVH of the engine and generator separately, and analyze and optimize them separately to improve the overall NVH performance of the range extender. The NVH test of the range extender generally uses a conventional engine NVH laboratory, which is equipped with auxiliary devices related to engine testing. The generator and the dynamometer are rigidly connected through a spline shaft, which requires the spline shaft of the generator to have extremely high coaxiality with the dynamometer shaft, and requires that the relative position of the motor with the dynamometer during installation can be finely adjusted.

[0004] However, the tooling structure in the prior art cannot be adjusted in height and position, and each time the motor sample is transported to the site, it needs to be aligned before the NVH test can be carried out. The installation process is complicated, time-consuming and labor-intensive, which seriously affects the test efficiency of the NVH test. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing NVH test fixture structure cannot be adjusted in height and position, and the motor sample cannot be directly installed on the fixture structure.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a tooling structure for motor NVH test, comprising a base, a motor mounting seat installed on the base through an adapter plate, and a bearing seat assembly arranged on a vertical plate of the motor mounting seat; a first internal threaded hole is opened on the top of the base, and a position adjustment device is installed in the first internal threaded hole; fourth internal threaded holes are arranged on both sides of the bottom plate of the motor mounting seat, and height adjustment bolts are installed in the fourth internal threaded holes; the bearing seat assembly comprises a first center axis and a second center axis, a first flange is arranged at one end of the first center axis, and the other end is connected to the diaphragm coupling through the second flange, and one end of the second center axis is connected to the diaphragm coupling, and the other end is arranged at a third flange.

[0007] Preferably, a bearing is provided at the center of the second flange, and the first center axis is installed in the bearing.

[0008] Preferably, the first flange is fixedly connected to the first central axis; the third flange is fixedly connected to the second central axis; the first central axis and the second central axis are fixedly connected to the diaphragm coupling respectively.

[0009] Preferably, a bearing seat assembly hole is opened in the middle of the vertical plate of the motor mounting seat, a first recessed stop is opened on one side of the vertical plate and is located outside the bearing seat assembly hole, a fifth internal threaded hole is opened in the first recessed stop, and a second recessed stop is opened on the other side of the vertical plate and is located outside the bearing seat assembly hole, a sixth internal threaded hole is opened outside the second recessed stop.

[0010] Preferably, a U-shaped bolt hole is provided at the bottom of the base, and a U-shaped hole is also provided at the top of the base.

[0011] Preferably, a groove is milled in the middle of the adapter plate, a third internal threaded hole is arranged in the groove, a second internal threaded hole is arranged on the top of the adapter plate, the second internal threaded holes are arranged in pairs on both sides of the groove, and the groove also has symmetrically arranged first hanging ear mounting holes.

[0012] Preferably, through holes are provided on both sides of the bottom plate of the motor mounting seat, and second hanging ear mounting holes arranged in pairs are provided on the top of the motor mounting seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model provides a fixture structure for motor NVH testing, which can adjust the installation position of the fixture through a position adjustment device and a height adjustment bolt, thereby improving the coaxiality of the generator sample and the dynamometer.

[0015] (2) The utility model provides a tooling structure for motor NVH testing. By arranging a diaphragm coupling between the first center shaft and the second center shaft, it can effectively compensate for the shaft alignment defects when the second flange and the third flange are installed, thereby avoiding damage to the torque flange of the dynamometer due to insufficient alignment accuracy during the test.

[0016] (3) The utility model provides a tooling structure for motor NVH testing, which can directly assemble the flange boss of a prefabricated motor sample sleeve with the second recessed stop of the motor mounting seat without the need for re-alignment, thereby saving the time for sample centering and installation and improving the efficiency of motor sample NVH testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the NVH test fixture structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adapter plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the motor mounting seat of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the bearing seat assembly of the utility model.

[0023] In the figure: 101, laboratory iron floor; 201, base; 301, adapter plate; 401, motor mounting seat; 501, bearing seat assembly; 1, U-shaped bolt hole; 2, U-shaped hole; 3, first internal threaded hole; 4, second internal threaded hole; 5, third internal threaded hole; 6, first lifting ear mounting hole; 7, groove; 8, through hole; 9, fourth internal threaded hole; 10, fifth internal threaded hole; 11, first concave stop; 12, second lifting ear mounting hole; 13, second concave stop; 14, sixth internal threaded hole; 15, height adjustment bolt; 16, mounting bolt; 17, position adjustment device; 18, first center axis; 19, second center axis; A1, first flange; A2, second flange; A3, diaphragm coupling; A4, third flange. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0025] like Figure 1 As shown, a tooling structure for motor NVH testing includes a base 201 installed on a laboratory iron floor 101, a motor mounting seat 401 installed on the top of the base 201 through an adapter plate 301, and a bearing seat assembly 501 arranged on a vertical plate of the motor mounting seat 401.

[0026] Specifically, if Figure 1-3 As shown, a T-bolt is arranged in the T-slot of the laboratory iron floor 101, and a U-bolt hole 1 matching the T-bolt is arranged at the bottom of the base 201. Three groups of U-holes 2 are arranged at the top of the base 201, and four groups of first internal threaded holes 3 are arranged at the top edge of the base 201, and a position adjustment device 17 is arranged in the first internal threaded hole 3.

[0027] Specifically, if Figure 4 As shown, a groove 7 is milled in the middle of the adapter plate 301 to reduce the weight of the adapter plate 301. A third internal threaded hole 5 corresponding to the U-shaped hole 2 is provided in the groove 7. A second internal threaded hole 4 corresponding to the U-shaped hole 2 is also provided on the top of the adapter plate 301. The second internal threaded holes 4 are arranged in pairs on both sides of the groove 7. Bolts are inserted into the corresponding U-shaped holes 2 and third internal threaded holes 5 and fastened with nuts to fix the adapter plate 301 on the base 201. Two symmetrically arranged first lifting ear mounting holes 6 are also provided in the groove 7 to facilitate the lifting of the adapter plate 301.

[0028] Specifically, if Figure 1 , Figure 2 and Figure 5 As shown, vertical through holes 8 corresponding to the second internal threaded hole 4 are provided on both sides of the bottom plate of the motor mounting seat 401. The through holes 8, the second internal threaded hole 4, and the U-shaped hole 2 are screwed together by mounting bolts 16, so that the motor mounting seat 401 is fixedly mounted on the adapter plate 301, and the adapter plate 301 is fixedly mounted on the base 201. Vertical fourth internal threaded holes 9 are also provided on both sides of the bottom plate of the motor mounting seat 401. The fourth internal threaded hole 9 is screwed with a height adjustment bolt 15 matched therewith, which is used to adjust the installation height of the tooling. A first concave stop 11 is provided on one side of the vertical plate of the motor mounting seat 401, and a second concave stop 13 is provided on the other side. A fifth internal threaded hole 10 is provided in the first concave stop 11, and a sixth internal threaded hole 14 is provided outside the second concave stop 13, which is used to be connected to the mounting plate of the motor sample. Two second hanging ear mounting holes 12 are provided on the top of the motor mounting seat 401 to facilitate the hoisting of the motor mounting seat 401.

[0029] Specifically, if Figure 1 and Figure 6 As shown, the bearing seat assembly 501 includes a first central axis 18 and a second central axis 19, one end of the first central axis 18 is fixedly connected to the first flange A1, a boss stop is provided on the first flange A1, and a sleeve matching the motor spline is installed, the other end of the first central axis 18 passes through the second flange A2 and is fixedly connected to the diaphragm coupling A3, one end of the second central axis 19 is fixedly connected to the diaphragm coupling A3, and the other end is fixedly connected to the third flange A4, and the diaphragm coupling A3 can compensate for the shaft alignment defect when the second flange A2 and the third flange A4 are installed. The second flange A2 is embedded in the first concave stop 11 of the motor mounting seat 401, and a bearing is provided at the center thereof, and the first central axis 18 is installed in the bearing.

[0030] Specific implementation process: according to the size of the base 201, move the T-bolts of the laboratory iron floor 101 to a suitable position, hang the base 201 on the laboratory iron floor 101, and make the T-bolts at the corresponding position pass through the U-bolt hole 1. Then hang the adapter plate 301 on the base 201, so that the U-shaped hole 2 corresponds to the third internal threaded hole 5. Then hang the motor mounting seat 401 on the top surface of the adapter plate 301, so that the second internal threaded hole 4 corresponds to the through hole 8, and insert the bolts into the corresponding U-shaped hole 2 and the third internal threaded hole 5, and insert the bolts into the corresponding U-shaped hole 2, the second internal threaded hole 4, and the through hole 8. Then combine and install the bearing seat assembly 501 into an integral structure, embed the second flange A2 in the first concave stop 11, and fasten the bearing seat assembly 501 to the motor mounting seat 401 by passing the bolts through the bolt holes on the second flange A2 and the fifth internal threaded hole 10.

[0031] The third flange A4 is aligned with the dynamometer torque flange and fastened with bolts. During the installation of the dynamometer, the base 201 can be translated along the T-slot in the X direction. The position of the base 201 is adjusted, and the nuts of the T-bolts connecting the base 201 and the laboratory iron floor 101 are tightened to fix the base 201 on the laboratory iron floor 101.

[0032] Use a laser alignment instrument to align the torque flange of the dynamometer and the axis of the bearing seat assembly 501. During the alignment process, the position of the bolt in the third internal threaded hole 5 in the U-shaped hole 2 can be translated along the Y direction, thereby translating the adapter plate 301 and fine-tuning the position of the adapter plate 301. Then, turn the height adjustment bolt 15 to a suitable height and adjust the Z-direction position of the adapter plate 301. After adjusting to the appropriate position, screw the bolts on the side wall of the position adjustment device 17 in the direction of the adapter plate 301 so that the bolts are against the adapter plate 301, and the adapter plate 301 is clamped and fixed to prevent the position of the adapter plate 301 from changing. Tighten the nuts of the mounting bolts 16 in the U-shaped hole 2, the second internal threaded hole 4, and the through hole 8, and then tighten the nuts of the bolts in the U-shaped hole 2 and the third internal threaded hole 5. After the adjustment is completed, fine gaskets are placed on the four corners of the motor mounting seat 401. Then the flange boss of the prefabricated motor sample shaft sleeve is directly assembled with the second recessed stop 13 of the motor mounting seat 401 without the need for re-alignment, thereby saving the time for sample centering and installation and improving the efficiency of the motor sample NVH test.

[0033] It should be noted that, in the description of the present invention, relational terms such as "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0034] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A tooling structure for motor NVH test, characterized by: It includes a base, a motor mounting seat installed on the base through an adapter plate, and a bearing seat assembly arranged on a vertical plate of the motor mounting seat; a first internal threaded hole is opened on the top of the base, and a position adjustment device is installed in the first internal threaded hole; fourth internal threaded holes are arranged on both sides of the bottom plate of the motor mounting seat, and height adjustment bolts are installed in the fourth internal threaded holes; the bearing seat assembly includes a first central axis and a second central axis, a first flange is arranged at one end of the first central axis, and the other end passes through the second flange and is connected to the diaphragm coupling; one end of the second central axis is connected to the diaphragm coupling, and the other end is arranged at a third flange.

2. The tooling structure for motor NVH test according to claim 1, characterized in that: A bearing is disposed at the center of the second flange, and the first center shaft is installed in the bearing.

3. The tooling structure for motor NVH test according to claim 1, characterized in that: The first flange is fixedly connected to the first central axis; the third flange is fixedly connected to the second central axis; the first central axis and the second central axis are fixedly connected to the diaphragm coupling respectively.

4. The tooling structure for motor NVH test according to claim 1, characterized in that: A bearing seat assembly hole is provided in the middle of the vertical plate of the motor mounting seat, a first recessed stop is provided on one side of the vertical plate and is located outside the bearing seat assembly hole, a fifth internal threaded hole is provided in the first recessed stop, a second recessed stop is provided on the other side of the vertical plate and is located outside the bearing seat assembly hole, a sixth internal threaded hole is provided outside the second recessed stop.

5. The tooling structure for motor NVH test according to claim 1, characterized in that: A U-shaped bolt hole is arranged at the bottom of the base, and a U-shaped hole is also arranged at the top of the base.

6. The tooling structure for motor NVH test according to claim 1, characterized in that: A groove is milled in the middle of the adapter plate, a third internal threaded hole is arranged in the groove, a second internal threaded hole is arranged on the top of the adapter plate, the second internal threaded holes are arranged in pairs on both sides of the groove, and the groove also has symmetrically arranged first hanging ear mounting holes.

7. The tooling structure for motor NVH test according to claim 1, characterized in that: Through holes are arranged on both sides of the bottom plate of the motor mounting seat, and second hanging ear mounting holes arranged in pairs are arranged on the top of the motor mounting seat.

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