Jump control instrument for new energy passenger car generator shaft

Abstract

A run-out control device for a new energy passenger car generator shaft, comprising a mounting base, the mounting base is sequentially assembled with a rotating mechanism and a detection mechanism from top to bottom. The rotating mechanism comprises a magnetic field tube, and a first passage for the generator shaft is arranged in the middle of the magnetic field tube. The magnetic field tube is provided with a guide coil around the first passage, and the guide coil is connected with an alternating current power supply. The detection mechanism comprises a through second passage, and the second passage is located directly below the first passage. The two ends of the second passage are provided with limiting components, and at least one detector is arranged on the inner wall of the second passage. Compared with the prior art, the application has the following beneficial effects: the run-out tolerance of each section of the motor shaft in the length direction is detected, and the appearance of the motor shaft is detected at the same time. The motor shaft is driven to move and rotate by gravity and magnetic field, which avoids the influence of motor vibration on detection and greatly reduces the detection error.

Description

Technical Field

[0001] This invention belongs to the technical field of motor shaft detection equipment, specifically relating to a runout control device for generator shafts in new energy passenger vehicles. Background Technology

[0002] The generator shaft in new energy passenger vehicles refers to the motor shaft used in new energy vehicles. It requires high precision, high stability, and high reliability, and its performance directly affects the operating efficiency and stability of the motor. Therefore, quality inspection of the motor shaft is crucial. Traditional motor shaft inspection techniques mainly include manual inspection and optical inspection, but these methods have certain limitations in practical applications. To improve the efficiency and accuracy of motor shaft inspection, the research and development of motor shaft inspection devices has become an urgent task.

[0003] However, current motor shaft inspection instruments still have some problems that urgently need improvement. Firstly, existing inspection devices have relatively limited functionality, typically only capable of detecting specific performance parameters. For example, some devices can only measure the radial runout of the motor shaft, but cannot detect other parameters such as surface flatness. This necessitates the use of multiple devices to perform tests on different performance parameters, increasing production costs and inspection time.

[0004] Secondly, to improve testing efficiency, existing testing devices typically only test the runout tolerance of a single cross-section when detecting runout, which results in poor testing effectiveness. Since multiple cross-sections of the motor shaft may exceed runout tolerance limits during machining, the test results of a single cross-section cannot fully reflect the overall performance of the motor shaft, leading to some defective motor shafts being mistakenly judged as qualified products.

[0005] Third, existing motor shaft detection devices typically perform detection by driving the motor shaft to rotate, but the vibration generated by the motor operation can affect the detection results. Vibration may increase detection errors or even make the detection results unstable, thereby reducing the accuracy and reliability of the detection device.

[0006] Finally, after inspection, the motor shafts need to be manually sorted and placed according to whether they pass or fail. This process is labor-intensive and prone to human error. On the one hand, operators may mistakenly identify qualified motor shafts as unqualified products, resulting in wasted resources; on the other hand, misidentifying unqualified motor shafts as qualified products may cause motor malfunctions, affecting the motor's operating efficiency and safety.

[0007] In summary, current new energy motor shaft testing devices have many problems in terms of functionality, testing effect, accuracy, and manual operation. There is an urgent need to develop more advanced, efficient, and accurate testing devices to meet the increasingly stringent requirements of the new energy motor industry for motor shaft quality testing. Summary of the Invention

[0008] To address the shortcomings of the existing technology, this invention provides a runout controller for generator shafts in new energy passenger vehicles, capable of performing visual inspection of the motor shaft while simultaneously detecting runout tolerances. Furthermore, by using gravity and a magnetic field to drive the motor shaft's movement and rotation, it avoids motor vibration affecting the inspection, significantly reducing inspection errors.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0010] A runout control device for generator shafts in new energy passenger vehicles includes a mounting base, on which a rotation mechanism and a detection mechanism are sequentially mounted from top to bottom. The rotation mechanism includes a magnetic field tube with a first channel through which the generator shaft passes. A conductor coil is arranged around the first channel, and the conductor coil is externally connected to an AC power supply. The detection mechanism includes a through second channel located directly below the first channel. Limiting components are provided on both ends of the second channel, and at least one detector is disposed on the inner wall of the second channel. The rotation mechanism can drive the generator shaft to rotate and slow its descent using the force generated by magnetic induction, while the detection mechanism is used to detect the runout tolerance of the generator shaft.

[0011] In a preferred embodiment, the detection mechanism includes an assembly base, and the second channel is disposed on the assembly base. The assembly base has a limiting adjustment groove corresponding to the number of detectors, and an adjusting knob is mounted in the limiting adjustment groove. The detector is mounted on the adjusting knob. The adjusting knob can adjust the extension length of the detector to suit the detection of different types of motor shafts.

[0012] In a preferred embodiment, the detector includes an adjusting rod threadedly fitted to an adjusting seat, the end of the adjusting rod having a detection head extending from the side of the second channel; the limiting adjusting groove includes an adjusting groove section, and the adjusting seat includes an axial limiting part fitted within the adjusting groove section, such that the adjusting seat is connected to the mounting base.

[0013] In a preferred embodiment, the limiting adjustment groove further includes a limiting groove segment adjacent to the adjusting groove segment. The adjusting base includes a rotation limiting part corresponding to the limiting groove segment; the limiting groove segment has a limiting protrusion circumferentially arranged on its side, and the rotation limiting part has a rotation limiting groove that cooperates with the limiting protrusion. The depth of the adjusting groove segment is greater than the thickness of the axial limiting part. When the axial limiting part moves axially within the adjusting groove segment to a side away from the limiting groove segment, the rotation limiting part disengages from the limiting groove segment, ensuring that the detector can be reliably fixed during detection and preventing errors caused by detector loosening.

[0014] In a preferred embodiment, the detectors are two that are symmetrically arranged about the motor axis. The reaction forces generated by the detectors abutting against the motor axis cancel each other out, thus preventing the motor axis from shifting and increasing the detection error.

[0015] In a preferred embodiment, the limiting assembly includes four limiting members arranged at 90° intervals around the second channel; each limiting member includes a base, on which a contact block is provided, and a plurality of ball bearings are mounted on the side of the contact block facing the motor shaft; during detection, the rolling surface of the ball bearings contacts the detection surface of the motor shaft. The limiting member is used for

[0016] To prevent radial displacement of the motor shaft during the testing process.

[0017] In a preferred embodiment, the mounting base is provided with a groove radially arranged according to the second channel, and a limiting rod is disposed within the groove. The base is slidably assembled with the limiting rod. This allows the limiting assembly to be adjusted to suit different models of motor shafts.

[0018] In a preferred embodiment, the limiting rod is provided with a spring that abuts against the base and the slide groove, so that the limiting component can always abut against the motor shaft during the detection process.

[0019] In a preferred embodiment, the mounting base is further equipped with a material dropping mechanism, which includes a material dropping seat, with a first material dropping channel and a second material dropping channel respectively provided on both sides of the material dropping seat. The material dropping seat is connected to the mounting base via a telescopic control component. The material dropping mechanism can distinguish between qualified and unqualified motor shafts based on the detection results.

[0020] In a preferred embodiment, both the first and second discharge channels are arc-shaped ramps to prevent the motor shaft from directly colliding with the discharge seat and damaging the motor shaft.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] 1. While inspecting the runout tolerance of each section along the length of the motor shaft, perform a visual inspection of the motor shaft.

[0023] 2. The motor shaft is moved and rotated by gravity and magnetic field, avoiding the impact of motor vibration on the detection and greatly reducing the detection error.

[0024] 3. The magnetic resistance generated by the magnetic field slows down the descent speed of the motor shaft, thus improving the detection accuracy.

[0025] 4. The detection mechanism can be adjusted to detect motor shafts of different models.

[0026] 5. The blanking mechanism can distinguish between qualified and unqualified motor shafts based on different test results. Attached Figure Description

[0027] Figure 1 This is a 3D schematic diagram of a vibration detector.

[0028] Figure 2 This is a planar schematic diagram of a vibration detector.

[0029] Figure 3 This is a top-down view of the testing facility.

[0030] Figure 4 This is a cross-sectional view of the internal structure of the assembly base.

[0031] Figure 5 This is a schematic diagram of the assembly of the detector and the adjustment knob.

[0032] Figure 6 This is a cross-sectional view of the material dropper.

[0033] The following is an explanation of the markings in the accompanying drawings:

[0034] 1. Mounting base; 2. Detection mechanism; 21. Limiting component; 3. Rotation mechanism; 31. Magnet tube; 32. First channel;

[0035] 40. Assembly base; 41. Second channel; 42. Limit adjustment groove; 43. Adjustment groove section; 44. Limit groove section; 45. Limit protrusion; 46. Slide groove; 47. Spring; 48. Limiting rod;

[0036] 50. Detector; 51. Adjusting rod; 52. Detection head; 53. Adjusting knob; 54. Axial limiting part; 55. Rotation limiting part; 56. Rotation limiting groove; 57. Rotation knob;

[0037] 60. Limiting component; 61. Base; 62. Abutment block; 63. Ball bearing;

[0038] 70. Material drop seat; 71. First material drop channel; 72. Second material drop channel; 73. Telescopic control component;

[0039] 8. Motor shaft. Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0041] In the following embodiments, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the description of this invention; therefore, they should not be construed as limiting this invention. Furthermore, terms such as first, second, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this invention, unless otherwise expressly specified and limited, terms such as installation, connection, linking, etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] refer to Figures 1 to 6 A vibration control device for a generator shaft in a new energy passenger vehicle includes a mounting base 1, on which a rotating mechanism 3 and a detection mechanism 2 are sequentially mounted from top to bottom. The rotating mechanism 3 includes a magnetic field tube 31, with a first channel 32 through which the generator shaft 8 passes. A conductor coil is arranged around the first channel 32 in the magnetic field tube 31, and the conductor coil is externally connected to an AC power supply. The detection mechanism 2 includes a through second channel 41 located directly below the first channel 32. Limiting components 21 are provided on the sides at both ends of the second channel 41, and at least one detector 50 is provided on the inner wall of the second channel 41.

[0044] When the vibration detector described in this application detects the motor shaft 8, it drives the motor shaft 8 to move and rotate through gravity and the magnetic field generated by the rotation mechanism 3, thereby avoiding the influence of motor vibration on the detection and greatly reducing the detection error.

[0045] As a specific embodiment, the detection mechanism 2 can be adjusted according to different models of motor shafts 8. Its specific structure is as follows: The detection mechanism 2 includes an assembly base 40, and the second channel 41 is disposed on the assembly base 40. The assembly base 40 is provided with a limiting adjustment groove 42 corresponding to the number of detectors 50. An adjusting knob 53 is assembled in the limiting adjustment groove 42, and the detectors 50 are assembled on the adjusting knob 53. The adjusting knob 53 can adjust the extension length of the detectors 50 to suit the detection of different models of motor shafts 8.

[0046] Specifically, the detector 50 includes an adjusting rod 51 threadedly fitted to an adjusting seat 53, and the end of the adjusting rod 51 is provided with a detection head 52 extending from the side of the second channel 41. The limiting adjusting groove 42 includes an adjusting groove section 43, and the adjusting seat 53 includes an axial limiting part 54 fitted within the adjusting groove section 43, so that the adjusting seat 53 is connected to the mounting base 40. Preferably, the adjusting seat 53 is provided with a rotating knob 57, which facilitates precise adjustment of the detector 50 by the user.

[0047] The limiting adjustment groove 42 further includes a limiting groove section 44 adjacent to the adjusting groove section 43. The adjusting knob 53 includes a rotation limiting part 55 corresponding to the limiting groove section 44. The limiting groove section 44 has a limiting protrusion 45 circumferentially arranged on its side, and the rotation limiting part 55 has a rotation limiting groove 56 that cooperates with the limiting protrusion 45. The depth of the adjusting groove section 43 is greater than the thickness of the axial limiting part 54. When the axial limiting part 54 moves axially within the adjusting groove section 43 to a side away from the limiting groove section 44, the rotation limiting part 55 disengages from the limiting groove section 44, so that the detector 50 can be reliably fixed during detection, avoiding errors caused by the detector 50 becoming loose.

[0048] Preferably, there are two detectors 50 arranged symmetrically about the motor shaft 8. The reaction forces generated by the detectors 50 abutting against the motor shaft 8 cancel each other out, thus preventing the motor shaft 8 from shifting and increasing the detection error.

[0049] Specifically, the limiting component 21 mounted on the detection mechanism 2 can restrict the motor shaft 8 to prevent radial displacement. Its structure is as follows: The limiting component 21 includes four limiting members 60 arranged at 90° intervals around the second channel 41; each limiting member 60 includes a base 61, on which an abutment block 62 is provided. A plurality of ball bearings 63 are mounted on the side of the abutment block 62 facing the motor shaft 8. During detection, the rolling surface of the ball bearings 63 contacts the detection surface of the motor shaft 8. The limiting member 60 is used to restrict radial displacement of the motor shaft 8 during the detection process.

[0050] To accommodate different models of motor shafts 8, the mounting base 40 is provided with a radially arranged groove 46 along the second channel 41. A limiting rod 48 is disposed within the groove 46, and the base 61 is slidably assembled with the limiting rod 48. This allows the limiting component 21 to be adjusted to fit different models of motor shafts 8. A spring 47 is provided on the limiting rod 48, abutting between the base 61 and the groove 46, ensuring that the limiting component 60 remains in contact with the motor shaft 8 throughout the testing process.

[0051] As a specific embodiment, the mounting base 1 is also equipped with a material dropping mechanism, which can distinguish and drop motor shafts 8. Its structure is as follows: The material dropping mechanism includes a material dropping seat 70, with a first material dropping channel 71 and a second material dropping channel 72 respectively provided on both sides of the material dropping seat 70. The material dropping seat 70 is connected to the mounting base 1 via a telescopic control component 73. The user can configure the first material dropping channel 71 and the second material dropping channel 72 to transport qualified and unqualified motor shafts 8 respectively, according to the equipment settings. The material dropping mechanism can distinguish and drop qualified and unqualified motor shafts 8 based on the detection results. Specifically, both the first material dropping channel 71 and the second material dropping channel 72 are arc-shaped ramps to prevent the motor shaft 8 from directly colliding with the material dropping seat 70 and damaging the motor shaft 8.

[0052] The scope of protection of this invention includes, but is not limited to, the above embodiments. The scope of protection of this invention is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art fall within the scope of protection of this invention.

Claims

1. A runout control device for the generator shaft of a new energy passenger vehicle, characterized in that, It includes a mounting base (1), which is equipped with a rotating mechanism (3) and a detection mechanism (2) from top to bottom. The rotating mechanism (3) includes a magnetic field tube (31), and the magnetic field tube (31) has a first channel (32) through which the motor shaft (8) passes; the magnetic field tube (31) is provided with a conductor coil around the first channel (32), and the conductor coil is connected to an external AC power supply; The detection mechanism (2) includes a through second channel (41) located directly below the first channel (32); the two ends of the second channel (41) are provided with limiting components (21), and at least one detector (50) is provided on the inner wall of the second channel (41). The detection mechanism (2) includes an assembly base (40), and the second channel (41) is disposed on the assembly base (40); the assembly base (40) is provided with a limit adjustment groove (42) corresponding to the number of detectors (50), and an adjustment seat (53) is assembled in the limit adjustment groove (42), and the detectors (50) are assembled on the adjustment seat (53). The limiting component (21) includes four limiting members (60) arranged at 90° intervals around the second channel (41); the limiting member (60) includes a base (61), and an abutment block (62) is provided on the base (61). A plurality of balls (63) are assembled on the side of the abutment block (62) facing the motor shaft (8); during detection, the rolling surface of the balls (63) contacts the detection surface of the motor shaft (8).

2. The runout control device for generator shaft of new energy passenger vehicles according to claim 1, characterized in that, The detector (50) includes an adjusting rod (51) threadedly fitted to an adjusting seat (53), and the end of the adjusting rod (51) is provided with a detection head (52) extending from the side of the second channel (41); the limiting adjusting groove (42) includes an adjusting groove section (43), and the adjusting seat (53) includes an axial limiting part (54) fitted in the adjusting groove section (43).

3. The runout control device for generator shaft of new energy passenger vehicles according to claim 2, characterized in that, The limiting adjustment groove (42) also includes a limiting groove section (44) adjacent to the adjusting groove section (43); the adjusting knob (53) includes a rotation limiting part (55) corresponding to the limiting groove section (44); the limiting groove section (44) is provided with a limiting protrusion (45) on its side, and the rotation limiting part (55) is provided with a rotation limiting groove (56) that cooperates with the limiting protrusion (45); the depth of the adjusting groove section (43) is greater than the thickness of the axial limiting part (54), and when the axial limiting part (54) moves axially within the adjusting groove section (43) to a side away from the limiting groove section (44), the rotation limiting part (55) disengages from the limiting groove section (44).

4. The runout control device for generator shaft of new energy passenger vehicles according to claim 1, characterized in that, The detectors (50) are two that are symmetrically arranged about the motor shaft (8).

5. The runout control device for generator shaft of new energy passenger vehicles according to claim 1, characterized in that, The assembly base (40) is provided with a sliding groove (46) arranged radially according to the second channel (41), and a limiting rod (48) is provided in the sliding groove (46). The base (61) and the limiting rod (48) are slidably assembled.

6. The runout control device for generator shaft of new energy passenger vehicles according to claim 5, characterized in that, The limiting rod (48) is provided with a spring (47) that abuts against the base (61) and the slide (46).

7. The runout control device for generator shaft of new energy passenger vehicles according to claim 1, characterized in that, The mounting base (1) is also equipped with a material dropping mechanism, which includes a material dropping seat (70). A first material dropping channel (71) and a second material dropping channel (72) are respectively provided on both sides of the material dropping seat (70). The material dropping seat (70) is connected to the mounting base (1) through a telescopic control component (73).

8. The runout control device for generator shaft of new energy passenger vehicles according to claim 7, characterized in that, Both the first material drop channel (71) and the second material drop channel (72) are arc-shaped ramps.

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