CN220398501U

CN220398501U - Rotor runout testing device

Info

Publication number: CN220398501U
Application number: CN202321677648.3U
Authority: CN
Inventors: 汪泽鑫
Original assignee: Shenzhen Gimech Technology Corp
Current assignee: Shenzhen Gimech Technology Corp
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-01-26
Anticipated expiration: 2033-06-29

Abstract

The utility model belongs to the technical field of motor testing, and discloses a rotor runout testing device. The rotor runout testing device comprises a rotor driving mechanism, a detecting mechanism and a transferring device, wherein the rotor driving mechanism comprises a rotor driving piece, the output end of the rotor driving piece is in driving connection with a rotor to be tested, and the rotor to be tested is driven to rotate around the axis of the rotor to be tested; the detection mechanism comprises an axial runout detection assembly and a radial runout detection assembly, wherein the axial runout detection assembly is used for detecting axial runout of the end face to be detected of the rotor to be detected, and the radial runout detection assembly is used for detecting radial runout of the circumferential side wall of the rotor to be detected; the output end of the transfer device is in driving connection with a detection mechanism and can drive the detection mechanism to move along a first direction, a second direction and a third direction. The rotor runout testing device can be used for respectively detecting axial runout and radial runout of the end face to be tested and the circumferential side wall of the rotor to be tested, is applicable to rotors to be tested with different specifications, and is high in detection efficiency and wide in application range.

Description

Rotor runout testing device

Technical Field

The utility model relates to the technical field of motor testing, in particular to a rotor runout testing device.

Background

An electric motor, also called an electric motor or motor, is a device that converts electrical energy into mechanical energy. The electric equipment is characterized in that an electrified coil (namely a stator winding) is utilized to generate a rotating magnetic field and acts on a rotor (such as a squirrel-cage closed aluminum frame) to form magneto-electric power rotating torque, so that the equipment is driven to operate.

In the production link process of the motor, the stator, the rotor and the molded motor complete machine are required to be detected separately, and the items of rotor detection mainly comprise axial runout of the axial end face and radial runout detection of the circumferential side wall; the existing detection mode mainly comprises manual detection by operators, the detection efficiency is low, and only spot inspection can be performed due to the huge motor production capacity, so that a single unqualified rotor enters the next process, and the quality of a motor finished product is reduced and the raw material is wasted; and the existing detection equipment can only detect the motor rotor with one specification or model, and the detection equipment needs to be disassembled and assembled again and adjusted when the motor rotor specification is changed, so that the detection efficiency is low.

Therefore, it is desirable to provide a novel rotor runout testing device, so as to solve the above technical problems in the prior art.

Disclosure of Invention

The utility model aims to provide a rotor runout testing device which can respectively detect axial runout and radial runout of an end face to be tested and a circumferential side wall of a rotor to be tested, is suitable for rotors to be tested with different specifications, and is high in detection efficiency and wide in application range.

To achieve the purpose, the utility model adopts the following technical scheme:

the rotor runout testing device comprises a rotor driving mechanism, a detecting mechanism and a transferring device, wherein the rotor driving mechanism comprises a rotor driving piece, and the output end of the rotor driving piece is in driving connection with a rotor to be tested and is used for driving the rotor to be tested to rotate around the axis of the rotor to be tested; the detection mechanism comprises an axial runout detection assembly and a radial runout detection assembly, wherein the axial runout detection assembly is used for detecting axial runout of the end face to be detected of the rotor to be detected, and the radial runout detection assembly is used for detecting radial runout of the circumferential side wall of the rotor to be detected; the output end of the transfer device is in driving connection with the detection mechanism and can drive the detection mechanism to move along a first direction, a second direction and a third direction; the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, the detection method used by the detection mechanism is contact detection or non-contact detection.

Optionally, the detection method is contact detection, and the detection mechanism further comprises a detection mounting plate, wherein the detection mounting plate is mounted at the output end of the transfer device; the axial runout detection assembly and the radial runout detection assembly comprise detection probes, the two detection probes are respectively arranged at two ends of the detection mounting plate, and the two detection probes can be simultaneously or sequentially abutted to the rotor to be detected.

Optionally, the detection mechanism further comprises two detection connecting brackets connected to two ends of the detection mounting plate in a one-to-one correspondence manner, the detection probes are installed on the detection connecting brackets in a one-to-one correspondence manner, and the detection connecting brackets are provided with protection covers surrounding the peripheries of the detection probes.

Optionally, the rotor driving mechanism further includes a driving mounting bracket, one end of the driving mounting bracket is provided with the rotor driving member, the other end of the driving mounting bracket is rotatably connected with the rotor to be tested, and the rotor driving member, the driving mounting bracket and the rotor to be tested are coaxially arranged.

Optionally, the output end of the rotor driving piece is sequentially and coaxially connected with a speed reducer and an output rotating shaft, the output rotating shaft is rotationally connected with the driving mounting bracket, and the rotor to be tested is fixedly connected with the output rotating shaft.

Optionally, one end of the output rotating shaft, which is far away from the speed reducer, is connected with a motor chuck, and the rotor rotating shaft of the rotor to be tested is inserted and fixed on the motor chuck.

Optionally, a coupling is further disposed between the speed reducer and the output shaft.

Optionally, a detection protrusion extending radially is protruding on an axial end surface of the output shaft, a photoelectric sensor is disposed on an end surface of the driving mounting bracket, which is close to the rotor to be tested, and the detection protrusion can shield and trigger a detection head of the photoelectric sensor.

Optionally, the transfer device includes a mounting table, a first driving assembly, a second driving assembly and a third driving assembly, where the first driving assembly includes a first driving member and a first sliding rail extending along the first direction and disposed on the mounting table; the second driving assembly comprises a second driving piece and a second sliding rail which extends along the second direction and is connected with the first sliding rail in a sliding manner, and the second sliding rail is connected with the output end of the first driving piece; the third driving assembly comprises a third driving piece and a third sliding rail which extends along the third direction and is connected with the second sliding rail in a sliding manner, and the third sliding rail is connected with the output end of the second driving piece; the detection mechanism is connected with the third sliding rail in a sliding way and is connected with the output end of the third driving piece.

The beneficial effects are that:

according to the rotor runout testing device, the transfer device moves the detection mechanism along the first direction, the second direction and the third direction, so that the axial runout detection component and the radial runout detection component of the detection mechanism respectively correspond to the detection positions for detection, the detection content comprises the axial runout of the end face to be detected of the rotor to be detected and the radial runout of the circumferential side wall of the rotor to be detected, and the rotor to be detected is driven to rotate around the axis of the rotor to be detected through the rotor driving mechanism, so that the axial runout of the end face to be detected of the rotor to be detected and the radial runout of the circumferential side wall of the rotor to be detected can be detected. The rotor runout testing device can drive the detection mechanism to test the rotor to be tested along three directions, and automatically detects axial runout and radial runout of the end face to be tested and the circumferential side wall of the rotor to be tested, so that the rotor runout testing device is applicable to rotors to be tested of different specifications, manual operation and adjustment of the detection device are not needed, and the detection efficiency is high, and the application range is wide.

Drawings

FIG. 1 is an isometric view of a rotor under test provided in an embodiment of the present utility model;

FIG. 2 is an isometric view of a rotor runout testing apparatus provided in accordance with embodiments of the present utility model;

FIG. 3 is an isometric view of a rotor runout testing apparatus according to an embodiment of the present utility model from another perspective;

fig. 4 is a partial enlarged view at a in fig. 3.

In the figure:

10. a rotor to be measured; 11. an end face to be measured; 12. a circumferential side wall;

100. a rotor driving mechanism; 110. a rotor driving member; 120. driving the mounting bracket; 121. a photoelectric sensor; 130. a speed reducer; 140. a coupling; 150. an output shaft; 151. detecting the bulge; 160. a motor chuck;

210. an axial runout detection assembly; 211. an axial runout probe; 220. radial runout detection assembly; 221. a radial runout probe; 230. detecting a mounting plate; 231. detecting a connecting bracket; 232. a protective cover;

300. a transfer device; 301. a mounting table; 310. a first driving member; 311. a first slide rail; 320. a second driving member; 321. a second slide rail; 330. a third driving member; 331. and a third slide rail.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The first direction described in this embodiment is the X direction shown in fig. 2 and 3, the second direction is the Y direction shown in fig. 2 and 3, and the third direction is the Z direction shown in fig. 2 and 3; the first direction and the second direction are horizontal directions, the third direction is vertical, and the first direction, the second direction and the third direction are perpendicular to each other.

As shown in fig. 1, the rotor 10 to be tested in this embodiment has a circumferential side wall 12 and a end face 11 to be tested along one end of its own axis direction, and the end face 11 to be tested and the circumferential side wall 12 in this embodiment are both mounting surfaces that are mounted in cooperation with other components when the rotor 10 to be tested is formed into a complete motor, so that detection needs to be performed on these mounting surfaces, and details are not repeated here.

Referring to fig. 1 to 2, in the present embodiment, the rotor runout testing apparatus includes a rotor driving mechanism 100, a detecting mechanism and a transferring apparatus 300, wherein the rotor driving mechanism 100 includes a rotor driving member 110, an output end of the rotor driving member 110 is in driving connection with a rotor 10 to be tested, and is used for driving the rotor 10 to be tested to rotate around its own axis; the detection mechanism comprises an axial runout detection assembly 210 and a radial runout detection assembly 220, wherein the axial runout detection assembly 210 is used for detecting axial runout of the end face 11 to be detected of the rotor 10 to be detected, and the radial runout detection assembly 220 is used for detecting radial runout of the circumferential side wall 12 of the rotor 10 to be detected; the output end of the transfer device 300 is in driving connection with the detection mechanism and can drive the detection mechanism to move along a first direction, a second direction and a third direction; the first direction, the second direction and the third direction are perpendicular to each other.

The rotor runout testing device in this embodiment moves the detection mechanism by the transfer device 300 along the first direction, the second direction and the third direction, so that the axial runout detection component 210 and the radial runout detection component 220 of the detection mechanism respectively correspond to the detection positions to detect, the detection contents include the axial runout of the end face 11 to be tested of the rotor 10 to be tested and the radial runout of the circumferential side wall 12 of the rotor 10 to be tested, and the rotor 10 to be tested is driven to rotate around the axis thereof by the rotor driving mechanism 100, so that the axial runout of the end face 11 to be tested of the rotor 10 to be tested and the radial runout of the circumferential side wall 12 can be detected. The rotor runout testing device can drive the detection mechanism along three directions to test the rotor 10 to be tested, and automatically detect axial runout and radial runout of the end face 11 and the circumferential side wall 12 of the rotor 10 to be tested respectively, is suitable for the rotor 10 to be tested with different specifications, does not need manual operation and adjustment of the detection device, and is high in detection efficiency and wide in application range.

With continued reference to fig. 2, the transfer apparatus 300 includes a mounting table 301, a first driving assembly, a second driving assembly, and a third driving assembly, where the first driving assembly includes a first driving member 310 and a first sliding rail 311 extending along the first direction and disposed on the mounting table 301; the second driving assembly includes a second driving member 320 and a second sliding rail 321 extending along the second direction and slidably connected to the first sliding rail 311, wherein the second sliding rail 321 is connected to an output end of the first driving member 310; the third driving assembly includes a third driving member 330 and a third sliding rail 331 extending along the third direction and slidably connected to the second sliding rail 321, wherein the third sliding rail 331 is connected to an output end of the second driving member 320; the detecting mechanism is slidably connected to the third sliding rail 331 and connected to an output end of the third driving member 330. The transfer device 300 thus arranged can smoothly move the detection mechanism along three directions, that is, the detection mechanism can arbitrarily adjust the detection position thereof, so as to detect the rotor 10 to be detected with different sizes and different positions of the rotor 10 to be detected, and the detection is not repeated here.

The transfer device 300 may also be configured as a manipulator, so long as the detection mechanism can be moved along the first direction, the second direction, and the third direction, which will not be described herein.

Referring to fig. 2, optionally, the rotor driving mechanism 100 further includes a driving mounting bracket 120, one end of the driving mounting bracket 120 is provided with the rotor driving member 110, the other end is rotatably connected with the rotor 10 to be tested, and the rotor driving member 110, the driving mounting bracket 120 and the rotor 10 to be tested are all coaxially disposed. The coaxially arranged rotor driving member 110 and the rotor 10 to be tested can reduce the number of connecting members, improve the reliability of the rotor driving mechanism 100 and reduce the production cost and the occupied area.

Further, the output end of the rotor driving member 110 is coaxially connected with a speed reducer 130 and an output shaft 150 in sequence, the output shaft 150 is rotatably connected to the driving mounting bracket 120, and the rotor 10 to be tested is fixedly connected to the output shaft 150. The rotor driving member 110 in the embodiment is a driving motor, and the speed reducer 130 can increase the available output torque without increasing the power consumption of the rotor driving member 110, and can reduce the rotation speed of the driving motor, so that the rotor 10 to be detected can be conveniently detected by using a proper rotation speed; meanwhile, the speed reducer 130 can reduce the rotational inertia, and is convenient for selecting a motor with smaller power consumption, so that the cost is reduced, and the space occupied by the motor is reduced.

As a preferred embodiment, a motor chuck 160 is connected to an end of the output shaft 150 away from the speed reducer 130, and the rotor shaft of the rotor 10 to be tested is inserted and fixed to the motor chuck 160. The motor chuck 160 is convenient for directly inserting and fixing the rotor rotating shaft of the rotor 10 to be detected, is convenient to install and detach, and can improve the detection efficiency.

Optionally, a coupling 140 is further disposed between the speed reducer 130 and the output shaft 150. The coupling 140 can connect the output shaft of the reducer 130 with the output shaft 150, so that the two shafts are firmly connected and coaxially rotated, and can compensate offset between the two shafts due to inaccurate manufacturing and installation, deformation or thermal expansion during operation, and the like, and can play roles in relieving impact and absorbing vibration, and prevent the output shaft 150 from bearing excessive load, thereby playing a role in overload protection.

As shown in fig. 4, a detection protrusion 151 protruding in a radial direction is provided on an axial end surface of the output shaft 150, a photoelectric sensor 121 is provided on an end surface of the driving mounting bracket 120 near the rotor 10 to be measured, and the detection protrusion 151 can shield and trigger a detection head of the photoelectric sensor 121. The detection protrusion 151 and the photoelectric sensor 121 can enable the rotor 10 to be detected to rotate for one circle and then be detected by the photoelectric sensor 121 in real time, the photoelectric sensor 121 plays a role in counting, detection can be stopped after the counting reaches a preset value, and the rotating speed of the rotor 10 to be detected can be monitored in real time conveniently.

Further, the detection method used by the detection mechanism is contact type detection or non-contact type detection. The contact type detection mode is simple, but the rotor 10 to be detected is easy to damage; the non-contact detection mode is complex, the component cost is higher, the detection precision is lower, but the rotor 10 to be detected is not damaged, the person skilled in the art can select according to specific requirements, and the method is not particularly limited in the embodiment.

In this embodiment, the detection method is a contact type detection, as shown in fig. 3 and 4, the detection mechanism further includes a detection mounting plate 230, and the detection mounting plate 230 is mounted on the output end of the transfer device 300; the axial runout detecting assembly 210 and the radial runout detecting assembly 220 each include detecting probes, the two detecting probes are respectively mounted at two ends of the detecting mounting plate 230, and the two detecting probes can be simultaneously or sequentially abutted against the rotor 10 to be detected. The detection method in the embodiment is contact type detection, and a detection probe is directly abutted against the outer surface of the rotor 10 to be detected for detection; specifically, one of the detection probes is an axial runout probe 211, the other detection probe is a radial runout probe 221, the axial runout probe 211 is used for being abutted against the end face 11 to be detected, and the radial runout probe 221 is used for being abutted against the circumferential side wall 12, so that the detection of axial runout and radial runout is completed.

With continued reference to fig. 4, optionally, the detection mechanism further includes two detection connection brackets 231 connected to two ends of the detection mounting plate 230 in a one-to-one correspondence manner, the detection probes are mounted on the detection connection brackets 231 in a one-to-one correspondence manner, and the detection connection brackets 231 are provided with protection covers 232 surrounding the outer peripheries of the detection probes. The test connection bracket 231 allows the test probe to extend a distance so that the test probe directly contacts the outer wall of the rotor 10 to be tested. The protection cover 232 can provide protection for the detection probe when the detection probe extends out, prevents external equipment from striking the rotor 10 to be detected, and plays a protection role.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Rotor testing arrangement that beats, its characterized in that includes:

the rotor driving mechanism (100), the rotor driving mechanism (100) comprises a rotor driving piece (110), and the output end of the rotor driving piece (110) is in driving connection with a rotor (10) to be tested and is used for driving the rotor (10) to be tested to rotate around the axis of the rotor;

the detection mechanism comprises an axial runout detection assembly (210) and a radial runout detection assembly (220), wherein the axial runout detection assembly (210) is used for detecting axial runout of the end face (11) to be detected of the rotor (10) to be detected, and the radial runout detection assembly (220) is used for detecting radial runout of the circumferential side wall (12) of the rotor (10) to be detected;

the output end of the transfer device (300) is in driving connection with the detection mechanism and can drive the detection mechanism to move along a first direction, a second direction and a third direction; the first direction, the second direction and the third direction are perpendicular to each other.

2. The rotor runout testing device of claim 1, wherein the detection means is a contact type detection or a non-contact type detection.

3. The rotor runout testing device according to claim 2, wherein the detection method is contact detection, the detection mechanism further comprises a detection mounting plate (230), and the detection mounting plate (230) is mounted at the output end of the transfer device (300); the axial runout detection assembly (210) and the radial runout detection assembly (220) comprise detection probes, the two detection probes are respectively arranged at two ends of the detection mounting plate (230), and the two detection probes can be simultaneously or sequentially abutted to the rotor (10) to be detected.

4. A rotor runout testing device according to claim 3, wherein the detecting mechanism further comprises two detecting connection brackets (231) connected to two ends of the detecting mounting plate (230) in a one-to-one correspondence manner, the detecting probes are mounted on the detecting connection brackets (231) in a one-to-one correspondence manner, and the detecting connection brackets (231) are provided with protection covers (232) surrounding the peripheries of the detecting probes.

5. The rotor runout testing device according to claim 1, wherein the rotor driving mechanism (100) further comprises a driving mounting bracket (120), one end of the driving mounting bracket (120) is provided with the rotor driving member (110), the other end of the driving mounting bracket is rotatably connected with the rotor (10) to be tested, and the rotor driving member (110), the driving mounting bracket (120) and the rotor (10) to be tested are coaxially arranged.

6. The rotor runout testing device according to claim 5, wherein the output end of the rotor driving member (110) is sequentially and coaxially connected with a speed reducer (130) and an output rotating shaft (150), the output rotating shaft (150) is rotatably connected to the driving mounting bracket (120), and the rotor (10) to be tested is fixedly connected to the output rotating shaft (150).

7. The rotor runout testing device according to claim 6, wherein one end of the output shaft (150) far away from the speed reducer (130) is connected with a motor chuck (160), and the rotor shaft of the rotor (10) to be tested is inserted and fixed to the motor chuck (160).

8. The rotor runout testing device according to claim 6, wherein a coupling (140) is further provided between the decelerator (130) and the output shaft (150).

9. The rotor runout testing device according to claim 6, wherein a detection protrusion (151) extending radially is protruding from an axial end surface of the output shaft (150), a photoelectric sensor (121) is disposed on an end surface of the drive mounting bracket (120) close to the rotor (10) to be tested, and the detection protrusion (151) can shield and trigger a detection head of the photoelectric sensor (121).

10. The rotor runout testing apparatus according to any one of claims 1-9, wherein the transfer device (300) comprises:

a mounting table (301);

a first drive assembly including a first drive (310) and a first slide rail (311) extending in the first direction and disposed at the mounting table (301);

the second driving assembly comprises a second driving piece (320) and a second sliding rail (321) which extends along the second direction and is connected with the first sliding rail (311) in a sliding manner, and the second sliding rail (321) is connected with the output end of the first driving piece (310);

the third driving assembly comprises a third driving piece (330) and a third sliding rail (331) which extends along the third direction and is connected with the second sliding rail (321) in a sliding manner, and the third sliding rail (331) is connected with the output end of the second driving piece (320); the detection mechanism is connected to the third sliding rail (331) in a sliding manner and is connected to the output end of the third driving piece (330).