Concentricity measuring device for motor magnetic steel

Abstract

The utility model relates to a concentricity measuring device for motor magnetic steel, which comprises a base provided with a bearing mechanism, a lifting mechanism and a rotating mechanism. The rotating mechanism is arranged on the lifting mechanism; the bearing mechanism is used for placing magnetic steel, and the lifting mechanism is used for adjusting the height of the rotating mechanism, so that the rotating mechanism applies rotating torque to the magnetic steel; the base is also provided with a measuring mechanism used for measuring the radial runout of the magnetic steel. The utility model aims to provide the concentricity measuring device for the motor magnetic steel, so as to solve the problem that the existing measuring device can only perform measurement at a single position and is easy to leak a key area during actual use.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial measuring device technical field especially relates to a concentricity measuring device of motor magnetic steel. BACKGROUND

[0002] The magnetic steel rotor of a motor is an important component of the motor, and is usually fixed on a rotor core by a plurality of permanent magnets in a specific arrangement. The function of the magnetic steel rotor is to generate a magnetic field that interacts with the magnetic field generated by the stator winding to drive the motor to operate. The concentricity of the magnetic steel rotor, i.e. the consistency of the magnetic steel with the rotor axis, directly affects the smoothness of the motor, vibration, noise and overall performance. If the concentricity of the magnetic steel rotor is not good, it will cause uneven magnetic field distribution when the motor is running, and thus cause vibration, noise increase, temperature rise acceleration, and even shorten the service life of the motor.

[0003] Traditional magnetic steel rotor concentricity measuring tools, such as micrometer and caliper, mainly rely on manual operation and mechanical contact type measurement, which have obvious shortcomings. First of all, these tools lack a convenient and flexible bearing and adjusting mechanism, which is time-consuming and laborious for the operator and is prone to measurement errors. Secondly, the traditional tools do not have a precise rotation and torque applying mechanism, which makes it difficult to ensure the stability and consistency of the rotation, resulting in inaccurate measurement results. In addition, the traditional tools can usually only measure at a single position, lack the ability to accurately measure at multiple angles and positions, are prone to miss errors in critical areas, and the measurement results are easily affected by human factors, with poor stability. SUMMARY

[0004] The utility model aims at providing a concentricity measuring device for motor magnetic steel to solve the problem that the existing measuring device can only measure at a single position in actual use and is prone to miss critical areas.

[0005] The utility model realizes the following technical scheme:

[0006] A concentricity measuring device for motor magnetic steel, comprising a base, a bearing mechanism, a lifting mechanism and a rotating mechanism are provided on the base; the rotating mechanism is provided on the lifting mechanism; the bearing mechanism is used for placing the magnetic steel, the lifting mechanism is used for adjusting the height of the rotating mechanism, and the rotating mechanism is used for applying a rotating torque to the magnetic steel; a measuring mechanism for measuring the radial runout of the magnetic steel is also provided on the base.

[0007] Preferably, the bearing mechanism comprises a slide rail provided on the base, two support seats are provided on the slide rail and can slide along the length direction of the slide rail, one end of the support seat is in sliding connection with the slide rail, the other end of the support seat is provided with a clamping part, a groove is provided on the clamping part, a rotating shaft is provided in the magnetic steel, and the rotating shaft is placed in the two grooves respectively.

[0008] Preferably, the cross-sectional shape of the groove is an isosceles triangle, and the vertex angle of the isosceles triangle is an acute angle.

[0009] Preferably, the lifting mechanism comprises a guide rail arranged on the base, and a sliding block is slidingly arranged on the guide rail and can slide in the axial direction of the guide rail.

[0010] Preferably, the base is further provided with a guide rail base, the guide rail base is provided with a groove, and the guide rail is arranged in the groove; and a limiting block is arranged at the end of the groove away from the base.

[0011] Preferably, the rotating mechanism comprises an output shaft penetrating through and movably connected to the sliding block, and a pressure plate coaxial with the output shaft is arranged at the end of the output shaft close to the groove.

[0012] Preferably, one end of the output shaft is provided with a pressure plate, the other end of the output shaft is provided with a rotating disc, and a handle is arranged on the rotating disc.

[0013] Preferably, the measuring mechanism comprises a measuring rod, a measuring head and an indicating disc, the measuring head is arranged at the end of the measuring rod, and the indicating disc is arranged on the measuring rod.

[0014] Preferably, the base is further provided with an adjusting mechanism; the adjusting mechanism comprises a first universal joint and a second universal joint, one end of the first universal joint is hingedly connected to the base, the other end of the first universal joint is hingedly connected to one end of the second universal joint, the other end of the second universal joint is hingedly connected to one end of the measuring rod, and the other end of the measuring rod is connected to the measuring head.

[0015] Preferably, the perpendicular line from the vertex angle of the isosceles triangle of the groove to the bottom edge intersects the axis of the output shaft.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects: through the cooperative design of the base, the bearing mechanism, the lifting mechanism, the rotating mechanism and the measuring mechanism, the utility model effectively solves many problems of the traditional magnetic steel rotor concentricity measuring tool. First, the bearing mechanism can flexibly adapt to magnetic steel rotors of different sizes, avoiding the limitations of traditional tool fixed clamping. Second, the accurate cooperation of the lifting mechanism and the rotating mechanism realizes the stable rotation and height adjustment of the magnetic steel rotor, ensuring the consistency and reliability in the measurement process. At the same time, the measuring mechanism can monitor the radial runout of the magnetic steel in real time, provide accurate concentricity data, and avoid human operation errors and fluctuations in measurement results. These designs significantly improve the measurement accuracy and efficiency in actual measurement, reduce the operation complexity, and ensure the stability and reliability of the measurement results. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the embodiments of the present application, form a part of the present application, and do not constitute a limitation to the embodiments of the present application. In the drawings:

[0018] Figure 1 It is a schematic view of the overall structure of the present application;

[0019] Figure 2 It is a top view of the present application;

[0020] Figure 3 It is a side view of the present application;

[0021] Figure 4 It is Figure 3 It is an enlarged view of A in the middle;

[0022] Figure 5 It is a sectional view of the present application.

[0023] The represented by the reference signs are:

[0024] 1, base,

[0025] 2, slide rail,

[0026] 3, support seat, 31, clamping part,

[0027] 4, lifting mechanism, 41, guide rail base, 42, limit block, 43, guide rail, 44, sliding block,

[0028] 5, rotating mechanism, 51, turntable, 52, handle, 53, output shaft, 54, pressure plate,

[0029] 61, first universal joint, 62, second universal joint,

[0030] 71, measuring rod, 72, indicating disc, 73, measuring head,

[0031] 8, magnet steel, 9, rotating shaft. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not constitute a limitation to the present application. It should be noted that the present application has been in the actual research and development stage of use.

[0033] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, number or importance, but are used to distinguish different components. The terms "comprise", "include" and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects.

[0034] Traditional magnetic steel rotor concentricity measuring tools, such as micrometers and calipers, mainly rely on manual operation and mechanical contact measurement, which have the following disadvantages: First, they lack flexible and convenient bearing and adjustment mechanisms, and are cumbersome to operate and prone to errors. Second, these tools lack precise rotation and torque application mechanisms, making it difficult to ensure smooth rotation and leading to inaccurate measurement results. In addition, traditional tools can only measure at a single location and lack the ability to accurately measure at multiple angles and positions, making it easy to miss errors in critical areas and making the measurement results more susceptible to human factors and less stable.

[0035] Embodiment 1:

[0036] As shown in Figures 1 to 5 A motor magnetic steel concentricity measuring device includes a base 1, a bearing mechanism, a lifting mechanism 4 and a rotating mechanism 5 are provided on the base 1; the rotating mechanism 5 is provided on the lifting mechanism 4; the bearing mechanism is used to place the magnetic steel 8, the lifting mechanism 4 is used to adjust the height of the rotating mechanism 5, and the rotating mechanism 5 can apply a rotating torque to the magnetic steel 8; the base 1 is also provided with a measuring mechanism for measuring the radial runout of the magnetic steel 8.

[0037] It should be noted that the magnetic steel 8 rotor is fixed on the base 1 by the bearing mechanism, and the height of the rotating mechanism 5 is adjusted by the lifting mechanism 4, so that the rotating mechanism 5 can apply an accurate rotating torque to the magnetic steel 8 rotor. During rotation, the measuring mechanism monitors the radial runout of the magnetic steel 8 rotor in real time, thereby accurately measuring its concentricity. This scheme improves the measurement accuracy and significantly improves the measurement efficiency, reducing human error and cumbersome calibration process.

[0038] As a further optimization of the present embodiment, the bearing mechanism includes a slide rail 2 provided on the base 1, two support seats 3 are provided on the slide rail 2 and can slide along the length direction of the slide rail 2, one end of the support seat 3 is slidingly connected with the slide rail 2, the other end of the support seat 3 is provided with a clamping part 31, the clamping part 31 is provided with a groove, a rotating shaft 9 is sleeved in the magnetic steel 8, and two ends of the rotating shaft 9 are respectively placed in the two grooves.

[0039] It is noted that the support seat 3 is moved along the slide rail 2, and the clamping part 31 on the support seat 3 clamps the both ends of the rotating shaft 9 of the magnetic steel 8 rotor. The design of the slide rail 2 allows the support seat 3 to slide along the length direction, thereby adapting to magnetic steel 8 rotors of different lengths. The cross-sectional shape of the groove of the clamping part 31 is designed as an isosceles triangle with an acute top angle, which can stably clamp the rotating shaft 9 and prevent sliding or deviation during measurement.

[0040] As a further optimization of the embodiment, the groove is an isosceles triangle with an acute top angle.

[0041] It is noted that the design principle of the isosceles triangle groove is that the acute top angle closely matches the rotating shaft 9 of the magnetic steel 8 rotor, forming a stable clamping structure. The design of the acute angle makes the clamping force of the groove more concentrated on the rotating shaft 9, effectively preventing the rotating shaft 9 from sliding or deviating during rotation, not only improving the stability of clamping, but also ensuring that the concentricity measurement of the magnetic steel 8 rotor during measurement is not affected by unstable clamping, thereby improving the measurement accuracy.

[0042] Although other shapes of grooves (such as rectangular or circular) can also be used to clamp the magnetic steel 8 rotor, these shapes are not as effective as the isosceles triangle in preventing sliding and deviation. Rectangular grooves may not effectively limit the rotation angle of the rotating shaft 9, while circular grooves may not provide sufficient clamping force. In contrast, the isosceles triangle groove provides superior clamping performance through its geometry and clamping force distribution, making it difficult to be replaced by other simple-shaped grooves.

[0043] As a further optimization of the embodiment, the lifting mechanism 4 includes a guide rail 43 provided on the base 1, and a sliding block 44 is slidingly provided on the guide rail 43 and can slide in the axial direction of the guide rail 43. By sliding the sliding block 44 on the guide rail 43, the height of the rotating mechanism 5 is accurately adjusted. The design of the guide rail 43 provides accurate guidance, ensuring that the sliding block 44 maintains straight-line motion during lifting, avoiding tilting or deviation. The sliding connection of the sliding block 44 makes the adjustment process smooth and smooth, reducing the possibility of friction and jamming. This structure not only improves the accuracy and stability of lifting, but also ensures that the working state of the rotating mechanism 5 at different heights is consistent, thereby improving the reliability and consistency of measurement.

[0044] Other lifting methods such as screw drive or hydraulic lifting can also achieve height adjustment, but these methods either have complex structure and high cost, or have slow adjustment speed and low precision. In contrast, the design of the guide rail 43 and the sliding block 44 provides a simpler and more efficient lifting solution, with compact structure and easy maintenance, making it difficult to be replaced by other complex or inefficient lifting solutions.

[0045] As a further optimization of the embodiment, the base 1 is further provided with a guide rail base 41, the guide rail base 41 is provided with a slot, and the guide rail 43 is installed in the slot; the end of the slot away from the base 1 is provided with a limiting block 42.

[0046] The limiting block 42 is arranged at the end of the slot of the guide rail 43 away from the base 1, which prevents the slider 44 from moving excessively during lifting, and avoids the slider 44 from falling off the guide rail 43 or colliding with other components. The design of the limiting block 42 not only protects the equipment, but also improves the safety of operation, preventing accidental damage or personal injury caused by excessive movement of the slider 44.

[0047] As a further optimization of the embodiment, the rotating mechanism 5 includes an output shaft 53 penetrating and movably connected to the slider 44, and the output shaft 53 is provided with a pressure plate 54 coaxial with the output shaft 53 at the end close to the groove.

[0048] It should be noted that the output shaft 53 transmits the rotating torque to the pressure plate 54 and the rotating disc 51, and the pressure plate 54 is coaxial with the rotating shaft 9 of the rotor of the magnetic steel 8, which ensures that the concentricity measurement of the rotor of the magnetic steel 8 during rotation is not affected by eccentricity. The rotating disc 51 is provided with a handle 52, which facilitates the manual rotation of the output shaft 53 by the operator, and applies accurate rotating torque, which not only improves the stability and accuracy of rotation, but also ensures the stable rotation of the rotor of the magnetic steel 8 during measurement, thereby improving the reliability of the measurement result.

[0049] As shown in Figure 4 As shown in Figure 5 As a further optimization of the embodiment, the measuring mechanism includes a measuring rod 71, a measuring head 73, and an indicating disc 72, the measuring head 73 is arranged at the end of the measuring rod 71, and the indicating disc 72 is arranged on the measuring rod 71.

[0050] It should be noted that the measuring head 73 contacts the surface of the rotor of the magnetic steel 8, the measuring rod 71 transmits the slight displacement of the measuring head 73 to the indicating disc 72, and the indicating disc 72 directly displays the radial runout amount of the rotor of the magnetic steel 8 through the pointer or scale. The design of the measuring rod 71 and the measuring head 73 ensures the sensitivity and accuracy of the measurement, and can detect the slight runout change. The real-time display function of the indicating disc 72 enables the operator to observe the measurement result immediately and quickly judge whether the concentricity of the rotor of the magnetic steel 8 meets the requirements. The present scheme improves the intuitiveness and convenience of measurement, reduces the reading error of the measurement result, and improves the work efficiency.

[0051] As shown in Figure 1 As shown in Figure 2As shown, as a further optimization of the present embodiment, the base 1 is also provided with an adjustment mechanism; the adjustment mechanism includes a first universal joint 61 and a second universal joint 62, one end of the first universal joint 61 is hinged to the base 1, the other end of the first universal joint 61 is hinged to one end of the second universal joint 62, the other end of the second universal joint 62 is hinged to one end of the measuring rod 71, the other end of the measuring rod 71 is connected with the measuring head 73.

[0052] Through the combination of the first universal joint 61 and the second universal joint 62, multi-angle and multi-position adjustment of the measuring rod 71 is achieved. The hinged design of the first universal joint 61 and the second universal joint 62 allows the measuring rod 71 to rotate and tilt freely in three-dimensional space, accurately aligning the measuring point of the magnet steel 8 rotor. The hinged structure of the universal joint not only provides flexible adjustment capability, but also ensures the stability and accuracy of the measuring rod 71 during adjustment, avoiding measurement errors caused by angle deviation or vibration.

[0053] Working process:

[0054] 1. Preparation: Place the motor magnet steel 8 rotor to be measured on the clamping part 31 of the bearing mechanism, the clamping part 31 firmly clamps the shaft 9 through the isosceles triangular groove, ensuring that the magnet steel 8 rotor is fixed. The operator adjusts the clamping position through the support seat 3 on the slide rail 2 according to the length of the magnet steel 8 rotor, ensuring that the rotor does not slide or shift during measurement.

[0055] 2. Height adjustment: Through the guide rail 43 and the sliding block 44 in the lifting mechanism 4, the operator can accurately adjust the height of the rotating mechanism 5, so that the output shaft 53 of the rotating mechanism 5 is aligned with the axis of the magnet steel 8 rotor. The limiting block 42 on the guide rail base 41 prevents the sliding block 44 from moving excessively, ensuring the safety and stability of the lifting process.

[0056] 3. Apply rotational torque: The rotating mechanism 5 is connected to the pressure plate 54 through the output shaft 53, and the pressure plate 54 is coaxial with the shaft 9 of the magnet steel 8 rotor, ensuring that the rotor remains concentric during rotation. The operator applies uniform rotational torque by rotating the handle 52 on the rotating disc 51, allowing the magnet steel 8 rotor to rotate smoothly during measurement.

[0057] 4. Measure concentricity: The measuring head 73 of the measuring mechanism is in contact with the surface of the magnet steel 8 rotor, and the measuring rod 71 transmits the slight displacement of the measuring head 73 to the indicator disc 72. The indicator disc 72 displays the radial runout of the magnet steel 8 rotor in real time through the pointer or scale, and the operator can intuitively read the measurement results. The universal joint in the adjustment mechanism allows the measuring rod 71 to adjust at multiple angles and positions, ensuring that the measuring head 73 can accurately measure each key point of the magnet steel 8 rotor.

[0058] 5. Data reading and analysis: Through the indicator disc 72, the operator can quickly determine whether the concentricity of the magnet steel 8 rotor meets the requirements. If the measurement result does not meet the standard, the operator can adjust the installation position of the magnet steel 8 rotor or re-measure.

[0059] 6. End of measurement: After the measurement is completed, the operator removes the magnet steel 8 rotor from the clamping part 31, cleans the equipment, and prepares for the next measurement.

[0060] The entire working process realizes the rapid and accurate measurement of the concentricity of the magnet steel rotor through precise mechanical structure and humanized design. The device not only improves the measurement accuracy and efficiency, but also reduces the human operation error, ensures the stability and reliability of the measurement result, and is suitable for magnet steel rotors of different specifications and sizes, with high practicality and universality.

[0061] Example 2:

[0062] As shown in Figure 1 , Figure 2 and Figure 5 , as a further optimization scheme of the above embodiment, one end of the output shaft 53 is provided with a pressure plate 54, and the other end of the output shaft 53 is provided with a rotating disc 51, and the rotating disc 51 is provided with a handle 52.

[0063] It should be noted that one end of the output shaft 53 in the rotating mechanism 5 is connected with the pressure plate 54, and the other end is connected with the rotating disc 51 and the handle 52. The pressure plate 54 is coaxial with the rotating shaft 9 of the magnet steel 8 rotor, ensuring that the concentricity measurement of the magnet steel 8 rotor during rotation is not affected by eccentricity. The design of the rotating disc 51 and the handle 52 enables the operator to easily and stably apply a rotating torque, avoiding measurement errors caused by uneven force or unstable rotation. The grip design of the handle 52 conforms to ergonomics, is comfortable to operate, and can accurately control the rotation angle and torque, thereby improving the reliability and consistency of the measurement result.

[0064] As a further optimization of this embodiment, the perpendicular line from the top angle of the isosceles triangle to the bottom edge of the groove intersects the axis of the output shaft 53.

[0065] Through the geometric shape and positional relationship of the groove, it is ensured that the measuring head 73 is always aligned with the axis of the magnet steel 8 rotor during measurement. The perpendicular line from the top angle of the isosceles triangle to the bottom edge of the groove intersects the axis of the output shaft 53, so that the measuring head 73 can accurately measure the radial runout of the magnet steel 8 rotor, avoiding measurement errors caused by eccentricity or angle deviation. This scheme improves the accuracy of measurement, and also ensures the stability and consistency of the measurement result.

[0066] The above examples are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure. The following points need to be explained: only the structures involved in the embodiments of the present utility model are involved in the drawings of the embodiments of the present utility model, and other structures can refer to the usual design. In the case of no conflict, the features in the same embodiment and different embodiments of the present utility model can be combined with each other. The above is only a demonstrative implementation manner of the present utility model, rather than used to limit the protection scope of the present utility model, and the protection scope of the present utility model is determined by the appended claims.

Claims

1. A concentricity measuring device for motor magnetic steel, comprising a base (1), characterized in that, a bearing mechanism, a lifting mechanism (4) and a rotating mechanism (5) are arranged on the base (1); the rotating mechanism (5) is arranged on the lifting mechanism (4); the bearing mechanism is used for placing the magnetic steel (8), the lifting mechanism (4) is used for adjusting the height of the rotating mechanism (5); the rotating mechanism (5) is used for applying a rotating torque to the magnetic steel (8); a measuring mechanism for measuring the radial runout of the magnetic steel (8) is further arranged on the base (1).

2. The concentricity measuring device for a motor magnetic steel according to claim 1, wherein the bearing mechanism comprises a slide rail (2) arranged on the base (1), two support seats (3) capable of sliding along the length direction of the slide rail (2) are arranged on the slide rail (2), one end of each support seat (3) is in sliding connection with the slide rail (2), the other end of the support seat (3) is provided with a clamping part (31), a groove is arranged on the clamping part (31), a rotating shaft (9) is sleeved in the magnetic steel (8), and the two ends of the rotating shaft (9) are respectively placed in the two grooves.

3. The concentricity measuring device for a motor magnetic steel according to claim 2, wherein The cross-sectional shape of the groove is an isosceles triangle, and the top angle of the isosceles triangle is an acute angle.

4. The concentricity measuring device for a motor magnetic steel according to claim 3, wherein The lifting mechanism (4) comprises a guide rail (43) arranged on the base (1), and a sliding block (44) capable of sliding along the axial direction of the guide rail (43) is arranged on the guide rail (43).

5. The concentricity measuring device for a motor magnetic steel according to claim 4, wherein A guide rail base (41) is further arranged on the base (1), a slot is arranged on the guide rail base (41), and the guide rail (43) is installed in the slot; a limiting block (42) is arranged at the end of the slot away from the base (1).

6. The concentricity measuring device of a motor magnetic steel according to claim 5, wherein, The rotating mechanism (5) comprises an output shaft (53) penetrating and movably connected to the sliding block (44), and a pressure plate (54) coaxial with the output shaft (53) is arranged at the end of the output shaft (53) close to the groove.

7. The concentricity measuring device for a motor magnetic steel according to claim 6, wherein One end of the output shaft (53) is provided with a pressure plate (54), and the other end of the output shaft (53) is provided with a rotating disc (51), and a handle (52) is arranged on the rotating disc (51).

8. The concentricity measuring device of a motor magnetic steel according to claim 7, wherein, The measuring mechanism comprises a measuring rod (71), a measuring head (73) and an indicating disc (72), the measuring head (73) is arranged at the end of the measuring rod (71), and the indicating disc (72) is arranged on the measuring rod (71).

9. The concentricity measuring device of a motor magnetic steel according to claim 8, wherein, An adjusting mechanism is further arranged on the base (1); the adjusting mechanism comprises a first universal joint (61) and a second universal joint (62), one end of the first universal joint (61) is hinged to the base (1), the other end of the first universal joint (61) is hinged to one end of the second universal joint (62), the other end of the second universal joint (62) is hinged to one end of the measuring rod (71), and the other end of the measuring rod (71) is connected with the measuring head (73).

10. A concentricity measuring device for a motor magnetic steel according to any one of claims 6-9, characterized in that, The vertical line of the top angle to the base of the isosceles triangle intersects the axis of the output shaft (53).

Images