A motor rotor rotation balance test device and an automated motor assembly system

Abstract

The present application provides a motor rotor rotation balance test device and an automated motor assembly system, which belong to the field of motor rotor dynamic balance detection technology. The device includes a conveying track, a rotor bracket, a detection mechanism, and a power mechanism. The conveying track is provided with a track lifting section. The rotor bracket includes a sliding seat and a support member fixed at intervals on the top of the sliding seat. The sliding seat and the conveying track can be slidably matched. The top of the support member is provided with a support groove. The detection mechanism includes a drive belt located above the track lifting section, a tensioning assembly for tensioning the drive belt, and a detector for detecting the motor rotor. When the rotor bracket slides to the track lifting section and the track lifting section is in an elevated position, the motor rotor supported by the support member corresponds to the detector, and the motor rotor core can be slidably held against the drive belt. The device can automatically realize the conveyance of the motor rotor and move the motor rotor to the detection position. There is no need to disassemble and assemble the drive belt for each test, which is more time-saving and labor-saving.

Description

Technical Field

[0001] The present application relates to the technical field of motor rotor dynamic balance detection, and in particular to a motor rotor rotation balance test device and an automated motor assembly system. Background Art

[0002] The motor rotor is a crucial component of the motor. Vibration caused by rotor imbalance is one of the most critical issues in motor maintenance, adversely affecting motor operation, such as generating excessive noise and accelerating bearing wear. To reduce or even eliminate motor vibration, the motor rotor requires dynamic balancing testing after production.

[0003] Currently, belt-type dynamic balancing test equipment is commonly used for testing. The motor drives the drive belt, which in turn rotates the motor rotor. Specifically, during a motor rotor dynamic balancing test, a worker typically secures the motor rotor to the test equipment and then installs the drive belt (bringing it into contact with the motor rotor and tightening it). After the test is complete, the drive belt is removed, and the motor rotor is then removed. This testing method requires manual removal of the motor rotor, and the drive belt must be installed and removed for each test, which is time-consuming and laborious. Summary of the Invention

[0004] The purpose of this application is to provide a motor rotor rotation balance testing device and an automated motor assembly system, which can automatically realize the assembly line transportation of the motor rotor and move the motor rotor to the detection position, and there is no need to install and disassemble the drive belt during each test, which saves time and effort.

[0005] The embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a motor rotor rotation balance test device, comprising:

[0007] The conveying track includes a track fixed section and a track lifting section distributed and connected along the conveying direction;

[0008] The rotor bracket includes a sliding seat and multiple support members. The sliding seat is slidably matched with the conveying track along the conveying direction. The multiple support members are fixed on the top of the sliding seat at intervals. The top of each support member is provided with a support groove for supporting the motor rotor shaft;

[0009] The detection mechanism includes a drive belt, a tensioning assembly and a detector. The drive belt is located above the track lifting section. The tensioning assembly is used to tension the drive belt. The detector is used to detect the motor rotor.

[0010] The power mechanism includes a first driving member, a second driving member, and a third driving member. The first driving member is used to drive the rotor bracket to slide relative to the conveying track along the conveying direction. The second driving member is used to drive the track lifting section to rise and fall between the initial position and the raised position. The third driving member is used to drive the drive belt transmission.

[0011] When the rotor bracket slides to the track lifting section and the track lifting section is in the raised position, the motor rotor supported by the support member is in the detection position corresponding to the detector, and the motor rotor core can be slidably held under the drive belt.

[0012] The motor rotor rotation balance test device provided in the embodiment of the present application has the following beneficial effects:

[0013] The motor rotor is supported on top of the rotor bracket by a support member. The rotor bracket is slidably engaged with the conveying track. The motor rotor is transported along the conveying track by driving the rotor bracket. A track lifting section is provided in the conveying track. When the rotor bracket drives the motor rotor to the track lifting section, the track lifting section is driven to lift the motor rotor to the detection position corresponding to the detector. In this design, the motor rotor can be conveyed in an assembly line manner by driving the rotor bracket, and the motor rotor can be moved to the detection position by driving the track lifting section, without manual operation.

[0014] The drive belt is positioned above the track's lifting section. When the motor rotor is raised to the testing position, the motor rotor core slides against the drive belt. Under the tension of the tensioning assembly, the drive belt remains taut and slides tightly against the motor rotor core. This design ensures that the motor rotor automatically engages the drive belt when it is raised to the testing position during each test, eliminating the need for drive belt installation or removal.

[0015] In some embodiments, the detection mechanism is further provided with an embracing component, which corresponds to the motor rotor shaft at the detection position, and the embracing component is configured to be able to switch between a state of releasing the motor rotor shaft and a state of embracing the motor rotor shaft.

[0016] In some embodiments, the embracing assembly includes a mating hoop, a rotating transmission member and an embracing arm. The bottom of the mating hoop is provided with a coordination groove that matches the motor rotor shaft. The embracing arms are spaced apart on both sides of the coordination groove. The embracing arms are rotatably connected to the mating hoop through the rotating transmission member. The embracing arms open and close the coordination groove by rotating, so that the embracing assembly can switch between the state of loosening the motor rotor shaft and embracing the motor rotor shaft.

[0017] In some embodiments, the embracing arm has an embracing side wall corresponding to the motor rotor shaft, and the detector includes a pressure sensor arranged on the embracing side wall. The surface of the pressure sensor is provided with a wear-resistant layer matching the motor rotor shaft, and the wear-resistant layer is used to slidably fit with the motor rotor shaft.

[0018] In some embodiments, the second drive member includes a vertical rail, a lifting arm, a drive shaft, a fixed base, a transmission assembly, and a driver;

[0019] The vertical rail is provided with a lifting slide groove, in which a lifting slider is slidably accommodated;

[0020] The lifting arm is connected between the lifting slider and the track lifting section;

[0021] The drive shaft is rotatably connected to the fixed seat;

[0022] A first transmission member is slidably provided on the side surface of the fixed seat, and the fixed seat is provided with a first elastic member that drives the first transmission member to extend out of the fixed seat. During the sliding process of the first transmission member, the first transmission member is connected to the drive shaft so as to rotate the drive shaft around a preset direction; a second transmission member is slidably provided on the bottom surface of the fixed seat, and the fixed seat is provided with a second elastic member that drives the second transmission member to extend out of the fixed seat. During the sliding process of the second transmission member, the second transmission member is connected to the drive shaft so as to rotate the drive shaft around a direction opposite to the preset direction;

[0023] The transmission assembly includes a first gear, a second gear, a swing lever, a first connecting rod, a second connecting rod and a connecting shaft; the first gear is fixedly connected to the lifting slider, the second gear is meshed with the first gear, the second gear and the swing lever are fixedly sleeved on the connecting shaft, the first connecting rod and the second connecting rod are rotatably passed through the connecting shaft, the end of the first connecting rod away from the connecting shaft is coaxially distributed with the first gear and is rotatably connected, the end of the second connecting rod away from the connecting shaft is rotatably connected to the fixed seat, and a pushing head is convexly provided on the end of the swing lever away from the connecting shaft; wherein, when the first gear is at the lowest point, the pushing head pushes the first transmission member into the fixed seat, and when the first gear is at the highest point, the pushing head pushes the second transmission member into the fixed seat;

[0024] The driver is used to deliver power to the transmission components;

[0025] Among them, the driving shaft is connected to the rotating transmission member so that the embracing assembly switches between the first state, the second state and the third state during the lifting process of the first gear; in the first state, the first gear is at the lowest point, the embracing arm opens the coordination groove, and the embracing side wall flips outward; in the second state, the first transmission member and the second transmission member are both disengaged from the pushing head, the embracing arm opens the coordination groove, and the embracing side wall flips downward; in the third state, the first gear is at the highest point, and the embracing arm closes the coordination groove.

[0026] In some embodiments, the detection mechanism further includes a position sensor, and the position sensor is connected to one end of the embracing arm away from the rotating transmission member. In the third state, the position sensor is facing the support member.

[0027] In some embodiments, a distance measuring through hole is formed through the sliding seat along the height direction. In the second state, the position sensor is aligned with the distance measuring through hole.

[0028] In some embodiments, the detection mechanism further includes a visual component, which is located on the outside of the encircling arm. In the first state, the encircling side wall faces the visual component.

[0029] In some embodiments, the support groove is an arc-shaped groove, and the curvature radius of the arc-shaped groove is smaller than the curvature radius of the motor rotor shaft; an embracing channel corresponding to the embracing arm is opened through both ends of the support member along the height direction, and in the third state, the end of the embracing arm away from the rotating transmission member passes through the embracing channel.

[0030] In a second aspect, an embodiment of the present application provides an automated motor assembly system, including the automated motor assembly system provided by the above embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of a working state of a motor rotor rotation balance test device provided in an embodiment of the present application;

[0033] Figure 2 A schematic structural diagram of a conveyor track provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of a working state of a rotor support provided in an embodiment of the present application at a first viewing angle;

[0035] Figure 4 A schematic diagram of a working state of a rotor support provided in an embodiment of the present application at a second viewing angle;

[0036] Figure 5 A schematic diagram of a working state of a detection mechanism provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of another working state of a detection mechanism provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of a working state of an embracing assembly provided in an embodiment of the present application;

[0039] Figure 8 A schematic diagram of another working state of an embracing assembly provided in an embodiment of the present application;

[0040] Figure 9 A schematic diagram of a working state of a second driving member provided in an embodiment of the present application;

[0041] Figure 10 A schematic diagram of another working state of a second driving member provided in an embodiment of the present application;

[0042] Figure 11 A schematic diagram of another working state of a second driving member provided in an embodiment of the present application;

[0043] Figure 12 A schematic diagram of a cooperating working state of an embracing assembly and a rotor support provided in an embodiment of the present application;

[0044] Figure 13 A schematic diagram of another cooperative working state of an embracing assembly and a rotor support provided in an embodiment of the present application;

[0045] Figure 14 A schematic diagram of a coordinated working state of an embracing assembly and a detection mechanism provided in an embodiment of the present application;

[0046] Figure 15 A top view of a support member of a rotor bracket provided in an embodiment of the present application.

[0047] icon:

[0048] 100-Motor rotor rotation balance test device;

[0049] 110- conveying track; 111- track fixed section; 112- track lifting section; 1121- connecting rod;

[0050] 120 - rotor bracket; 121 - sliding seat; 1211 - ranging through hole; 122 - support member; 1221 - support plate; 12211 - support groove; 12212 - surrounding channel; 1222 - support rod;

[0051] 130-Detection mechanism; 131-Drive belt; 132-Tensioning assembly; 133-Detector; 134-Inkjet printer; 135-Encircling assembly; 1351-Matching hoop; 13511-Coordination groove; 1352-Rotating transmission member; 1353-Encircling arm; 136-Position sensor; 137-Visual assembly;

[0052] 140 - Second driving member; 141 - Vertical rail; 1411 - Lifting chute; 1412 - Lifting slider; 142 - Lifting arm; 143 - Driving shaft; 144 - Fixed seat; 1441 - First transmission member; 1442 - Second transmission member; 145 - Transmission assembly; 1451 - First gear; 1452 - Second gear; 1453 - Swing lever; 14531 - Pushing head; 1454 - First connecting rod; 1455 - Second connecting rod; 1456 - Connecting shaft;

[0053] 200-motor rotor;

[0054] 210-motor rotor shaft, 220-motor rotor core. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0058] In the description of this application, it should be noted that the terms "center", "up", "down", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as a limitation on this application.

[0059] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0060] Furthermore, the terms “vertical”, “parallel”, etc. do not mean that the components are required to be absolutely vertical or parallel, but may be slightly tilted.

[0061] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0062] The technical solution of this application will be exemplarily described below through some embodiments.

[0063] See also Figure 1 In a first aspect, an embodiment of the present application provides a motor rotor rotation balance testing device 100 , comprising: a conveying track 110 , a rotor bracket 120 , a detection mechanism 130 and a power mechanism.

[0064] See also Figure 2 The conveying track 110 includes a track fixed section 111 and a track lifting section 112 distributed and connected along the conveying direction. It should be noted that in the conveying track 110, the number of track fixed sections 111 and track lifting sections 112 is not limited; as an example, each track lifting section 112 is arranged between two track fixed sections 111, and the track fixed section 111 upstream of the track lifting section 112 is used to convey the product to be inspected to the track lifting section 112. After the product to be inspected is inspected by the track lifting section 112, it is output through the track fixed section 111 downstream of the track lifting section 112.

[0065] In the present application, the conveying track 110 can be conventionally configured, for example, by providing two spaced-apart slide rails with a slide groove formed on the inner side or top of each slide rail. Optionally, in the track lifting section 112, the two slide rails are connected by a connecting rod 1121 to facilitate the overall lifting of the track lifting section 112. It is understood that the connection between the track fixed section 111 and the track lifting section 112 means that the slide grooves of the two are connected.

[0066] See also Figure 3 and Figure 4 The rotor support 120 includes a sliding seat 121 and a plurality of supporting members 122 .

[0067] The sliding seat 121 is slidably matched with the conveying track 110 along the conveying direction. As an example, sliders are provided on both sides of the sliding seat 121, and the sliders are slidably embedded in the sliding grooves of the slide rail.

[0068] Multiple support members 122 are fixed at intervals on the top of the sliding seat 121. The support members 122 are arranged side by side in a direction perpendicular to the conveying direction of the conveying track 110. For example, there are two support members 122, each of which is used to correspond to the two motor rotor shafts 210 at both ends of the motor rotor 200. A support groove 12211 is defined at the top of each support member 122 for supporting the motor rotor shaft 210.

[0069] Optionally, the support member 122 includes a support plate 1221 and a support rod 1222, the support rod 1222 extends along the height direction of the motor rotor rotation balance testing device 100, the top of the support rod 1222 is connected to the bottom middle area of the support plate 1221, and the support groove 12211 is opened at the top of the support plate 1221.

[0070] See also Figure 5 The detection mechanism 130 includes a driving belt 131, a tensioning assembly 132 and a detector 133.

[0071] The drive belt 131 is located above the track lifting section 112 and is exemplarily in the form of a belt; when the rotor support 120 transports the motor rotor 200 to the track lifting section 112, the drive belt 131 corresponds to the motor rotor core 220 of the motor rotor 200 supported by the support member 122.

[0072] The tensioning assembly 132 is used to tension the driving belt 131 ; the detector 133 is used to detect the motor rotor 200 , and its installation position corresponds to the motor rotor 200 .

[0073] In the present application, the tensioning assembly 132 and the detector 133 may be conventionally configured. The tensioning assembly 132 may be, for example, a tensioning pulley that slidably engages with the drive belt 131 ; the detector 133 may be, for example but not limited to, a device for detecting the rotational balance force of the motor rotor shaft 210 or a device for capturing the rotational posture of the motor rotor 200 .

[0074] The power mechanism (not shown) includes a first driving member (not shown), a second driving member 140 and a third driving member (not shown); the first driving member is used to drive the rotor bracket 120 to slide relative to the conveying track 110 along the conveying direction, and it can output power to the sliding seat 121, and it can also output power to the support member 122; the second driving member 140 is used to drive the track lifting section 112 to rise and fall between the initial position and the raised position, and it can directly output power to the track lifting section 112, and it can also drive the track lifting section 112 by lifting the rotor bracket 120. The second driving member 140 exemplarily directly drives the track lifting section 112 to rise and fall; the third driving member is used to drive the drive belt 131 for transmission.

[0075] In the present application, the first driving member, the second driving member 140 and the third driving member can be conventionally configured, for example but not limited to being configured as a mechanical arm driven by a motor, a rotating roller, a conveyor belt, a conveyor sprocket, etc.

[0076] It should be noted that, in the embodiment of the present application, the motor rotor rotation balancing test device 100 is provided with a base for installing and fixing some structures; unless the installation method is specifically specified, the relevant structures in the motor rotor rotation balancing test device 100 can be installed and fixed at a specific position of the base using a conventional connection method.

[0077] See also Figure 5 and Figure 6 , Figure 5 The middle track lifting section 112 is at the initial position. Figure 6 The middle track lifting section 112 is in the raised position. When the rotor bracket 120 slides to the track lifting section 112 and the track lifting section 112 is in the raised position, the motor rotor 200 supported by the support member 122 is in the detection position corresponding to the detector 133, and the motor rotor core 220 is slidably supported under the drive belt 131.

[0078] The motor rotor rotation balance testing device 100 provided in the embodiment of the present application has the following working principles:

[0079] First, the motor rotor shafts 210 at both ends of the motor rotor 200 are placed in the support slots 12211 of the two support members 122, respectively, so that the motor rotor 200 is supported on top of the rotor support 120. Then, the rotor support 120 is driven by the first drive member to slide along the conveying direction of the conveying track 110, and the rotor support 120 supporting the motor rotor 200 is transported from the track fixed section 111 upstream of the track lifting section 112 to the track lifting section 112, so that the motor rotor 200 is positioned below the drive belt 131. Then, the second drive member 140 drives the track lifting section 112, raising the rotor support 120 supporting the motor rotor 200 from its initial position to an elevated position, so that the motor rotor core 220 is slidably supported below the drive belt 131. Under the tension of the tensioning assembly 132, the drive belt 131 remains tensioned and tightly slidingly engages with the motor rotor core 220. Then, the third driving member drives the drive belt 131, which drives the motor rotor 200 to rotate. During this process, the detector 133 detects the rotational balance of the motor rotor 200. Finally, after the detection is completed, the third driving member is stopped; the second driving member 140 drives the track lifting section 112 to lower the rotor bracket 120 supporting the motor rotor 200 from the elevated position to the initial position; and the first driving member drives the rotor bracket 120 to slide along the conveying direction of the conveying track 110, conveying the rotor bracket 120 supporting the motor rotor 200 from the track lifting section 112 to the downstream track fixed section 111.

[0080] The motor rotor rotation balance testing device 100 provided in the embodiment of the present application supports the motor rotor 200 on the top of the rotor bracket 120 through the support member 122, and the rotor bracket 120 is slidably matched with the conveying track 110. By driving the rotor bracket 120, the motor rotor 200 can be conveyed in an assembly line manner; when the rotor bracket 120 drives the motor rotor 200 to be conveyed to the track lifting section 112, the motor rotor 200 can be moved to the testing position by driving the track lifting section 112; and the drive belt 131 is arranged above the track lifting section 112 and is kept tensioned by the tensioning assembly 132. During each test, the motor rotor 200 is automatically matched with the drive belt 131 when it is lifted to the testing position, without the need to install or remove the drive belt 131. It can be seen that based on the design of the present application, the motor rotor 200 can be conveyed in an assembly line manner and moved to the testing position automatically, and the drive belt 131 does not need to be installed or removed during each test, which saves time and effort.

[0081] Optionally, the detection mechanism 130 also includes a printer 134. When the motor rotor 200 supported by the support member 122 is located at the detection position corresponding to the detector 133, the printer 134 is located on the side of the motor rotor core 220, and the coding portion of the printer 134 is facing the motor rotor core 220.

[0082] In this design, the motor rotor 200 is marked by inkjet coding through the inkjet printer 134. On the one hand, the motor rotor 200 can be marked one-to-one, which is convenient for matching the test results with the motor rotor 200 one-to-one; on the other hand, the starting position of the motor rotor 200 before the rotation test can be marked. Based on the rotation time and rotation speed during the test, the rotation position can be matched with the test data, and more detailed dynamic balancing test results can be obtained, which is conducive to dynamic balancing adjustment of unqualified motor rotors 200 after the test is completed.

[0083] See also Figure 5 and Figure 6 In some embodiments, the detection mechanism 130 is further provided with an embracing component 135, which corresponds to the motor rotor shaft 210 at the detection position, and the embracing component 135 is configured to be able to switch between a state of releasing the motor rotor shaft 210 and a state of embracing the motor rotor shaft 210. Figure 5 In the embodiment, the track lifting section 112 is located at the initial position, and the embracing assembly 135 is in a state of releasing the motor rotor shaft 210; Figure 6 In the embodiment, the track lifting section 112 is in the raised position and the embracing component 135 is in the state of embracing the motor rotor shaft 210.

[0084] It should be noted that when the embracing component 135 is in the state of embracing the motor rotor shaft 210, it only partially surrounds the motor rotor shaft 210 to position the motor rotor shaft 210, effectively preventing the motor rotor shaft 210 from shifting in the support groove 12211 or even escaping from the support groove 12211; in this state, the embracing component 135 will not hold the motor rotor shaft 210 tightly and will not prevent the motor rotor shaft 210 from rotating.

[0085] In the present application, the configuration of the embracing component 135 is not limited. Unless otherwise specified, it can be in the form of, for example but not limited to, a mechanical claw, a clamp, etc.

[0086] See also Figure 7 and Figure 8As an example, the embracing assembly 135 includes a matching hoop 1351, a rotating transmission member 1352, and an embracing arm 1353. The bottom of the matching hoop 1351 is provided with a matching groove 13511 that matches the motor rotor shaft 210, which is used for the top of the motor rotor shaft 210 to be inserted into and slidably fit with the motor rotor shaft 210. The embracing arms 1353 are spaced apart on both sides of the matching groove 13511. The embracing arms 1353 are rotatably connected to the matching hoop 1351 through the rotating transmission member 1352. The embracing arms 1353 are opened by rotating (such as Figure 7 ) and close the coordination groove 13511 (as shown Figure 8 As shown), the embracing assembly 135 can switch between the state of releasing the motor rotor shaft 210 and the state of embracing the motor rotor shaft 210.

[0087] In the present application, unless otherwise specified, a rotation driving member that directly drives the rotation transmission member 1352 can be set in a conventional manner.

[0088] In this design, the matching hoop 1351 is slidably fitted with the top of the motor rotor shaft 210, and the motor rotor shaft 210 is embraced from both sides of the motor rotor shaft 210 by rotating the embracing arm 1353. The rotating embracing arm 1353 is easy to control to switch the working state; moreover, the embracing coverage range is large and the positioning effect is good.

[0089] See also Figure 8 Furthermore, the embracing arm 1353 has an embracing side wall corresponding to the motor rotor shaft 210, and the detector 133 includes a pressure sensor arranged on the embracing side wall. The surface of the pressure sensor is provided with a wear-resistant layer matching the motor rotor shaft 210, and the wear-resistant layer is used to slidably fit with the motor rotor shaft 210.

[0090] In the above solution, the pressure sensor is, for example, but not limited to, a curved piezoelectric disc that matches the motor rotor shaft 210. In other solutions, for example, the pressure sensor is embedded within the surrounding sidewall. The wear-resistant layer is attached to the surface of the pressure sensor by, for example, but not limited to, gluing or spraying. Due to sliding friction between the wear-resistant layer and the motor rotor shaft 210 during testing, it will experience a certain degree of wear after prolonged testing. Using an adhesive-type wear-resistant layer facilitates straightforward replacement, while using a spray-on or other attachment method provides a more stable connection to the pressure sensor.

[0091] Based on the above technical solution, the force exerted on the side of the motor rotor shaft 210 during rotation is detected by a pressure sensor to obtain the centrifugal and vibration conditions of the motor rotor shaft 210 during rotation. In this dynamic balance detection method, the detector 133 is in direct contact with the motor rotor 200, and the detection result is more direct, accurate and reliable.

[0092] See also Figure 1 、 Figures 9 to 11 In some embodiments, the second driving member 140 includes a vertical rail 141, a lifting arm 142, a driving shaft 143, a fixing seat 144, a transmission assembly 145 and a driver (not shown).

[0093] The vertical rail 141 is provided with a lifting slot 1411 , in which a lifting slider 1412 is slidably accommodated. It can be understood that the lifting direction is the height direction of the motor rotor rotation balance testing device 100 .

[0094] The lifting arm 142 is connected between the lifting slider 1412 and the track lifting section 112. Based on this, when the lifting slider 1412 is lifted or lowered in the lifting slot 1411, the lifting arm 142 drives the track lifting section 112 to lift or lower, thereby driving the track lifting section 112 to lift or lower between the initial position and the raised position.

[0095] The driving shaft 143 is rotatably connected to the fixing seat 144 ; one end of the driving shaft 143 extends into the fixing seat 144 , and the other end of the driving shaft 143 extends out of the fixing seat 144 .

[0096] A first transmission member 1441, such as a rack, is slidably provided on the side of the fixed seat 144. The first transmission member 1441 is, for example, in the form of a rack. The fixed seat 144 is provided with a first elastic member (not shown) that drives the first transmission member 1441 out of the fixed seat 144. An external force can push the first transmission member 1441 into the fixed seat 144. In the absence of external force, the first elastic member ejects the first transmission member 1441 from the inside of the fixed seat 144 to the outside of the fixed seat 144. During the sliding process, the first transmission member 1441 is transmission-connected to the drive shaft 143, causing the drive shaft 143 to rotate in a predetermined direction. The drive shaft 143 is, for example, transmission-connected to a transmission gear. As the first transmission member 1441 slides into and out of the fixed seat 144, the transmission gear engages with the rack-shaped first transmission member 1441, causing the drive shaft 143 to rotate.

[0097] A second transmission member 1442, such as a rack, is slidably mounted on the bottom surface of the fixed seat 144. The fixed seat 144 is provided with a second elastic member (not shown), such as a spring, that drives the second transmission member 1442 out of the fixed seat 144. External force can push the second transmission member 1442 into the fixed seat 144. In the absence of external force, the second elastic member ejects the second transmission member 1442 from the fixed seat 144 to the outside. During the sliding process, the second transmission member 1442 is connected to the drive shaft 143, causing the drive shaft 143 to rotate in a direction opposite to a predetermined direction. The drive shaft 143 is connected to a transmission gear, such that as the second transmission member 1442 slides into and out of the fixed seat 144, the transmission gear engages with the rack-shaped second transmission member 1442, thereby rotating the drive shaft 143.

[0098] Based on the above design, the rotation direction of the drive shaft 143 is illustrated by the following example: when the first transmission member 1441 slides into the fixed seat 144, the drive shaft 143 rotates clockwise; correspondingly, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates counterclockwise. During the sliding process of the second transmission member 1442, the drive shaft 143 rotates in the opposite direction of the preset direction. That is, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates counterclockwise; correspondingly, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates clockwise.

[0099] It should be noted that the transmission connection method between the first transmission member 1441 and the second transmission member 1442 and the drive shaft 143 is not limited and can be conventionally set. In addition to the above-mentioned gear and rack form, it can also be a combination of a turbine and a worm, etc.

[0100] See also Figures 9 to 11 The transmission assembly 145 includes a first gear 1451 , a second gear 1452 , a swing rod 1453 , a first connecting rod 1454 , a second connecting rod 1455 and a connecting shaft 1456 .

[0101] The first gear 1451 is fixedly connected to the lifting slider 1412, so that the first gear 1451 can rise and fall with the lifting slider 1412. It should be noted that the fixed connection between the first gear 1451 and the lifting slider 1412 means that when the first gear 1451 rises and falls with the lifting slider 1412, it does not rotate relative to the lifting slider 1412. In addition, the form of the first gear 1451 is not limited to a circular gear. In some exemplary embodiments of the present application, the first gear 1451 is a sector gear with a central angle of, for example, 90°.

[0102] The second gear 1452 meshes with the first gear 1451. The second gear 1452 and the swing lever 1453 are both fixedly mounted on the connecting shaft 1456. The first connecting rod 1454 and the second connecting rod 1455 are both rotatably mounted on the connecting shaft 1456. The end of the first connecting rod 1454, which is remote from the connecting shaft 1456, is coaxially distributed with and rotatably connected to the first gear 1451. The end of the second connecting rod 1455, which is remote from the connecting shaft 1456, is rotatably connected to the fixed seat 144. The end of the swing lever 1453, which is remote from the connecting shaft 1456, is provided with a protruding pusher 14531. When the first gear 1451 is at its lowest point, the pusher 14531 pushes the first transmission member 1441 into the fixed seat 144. When the first gear 1451 is at its highest point, the pusher 14531 pushes the second transmission member 1442 into the fixed seat 144.

[0103] As an example, along the axial direction of connecting shaft 1456, second gear 1452, first connecting rod 1454, swing rod 1453, and second connecting rod 1455 are arranged in sequence; fixing base 144 is located on the side of second connecting rod 1455 away from swing rod 1453, and pushing head 14531 protrudes toward the side closer to second connecting rod 1455 and extends beyond second connecting rod 1455. This arrangement facilitates the coordination and connection between the various components of transmission assembly 145 and also ensures that swing rod 1453 does not interfere with other components of transmission assembly 145 during its swinging process.

[0104] In the design of the second driving member 140, the working principle of the transmission assembly is as follows:

[0105] When the lifting slider 1412 slides upward from the bottom of the lifting slot 1411, the first gear 1451 rises from the bottom following the lifting slider 1412. During this process, since the second gear 1452 is engaged with the first gear 1451, the second gear 1452 rotates and revolves around the first gear 1451. Since the swing arm 1453 is fixedly connected to the second gear 1452 via the connecting shaft 1456, the swing arm 1453 swings following the movement of the second gear 1452, causing the push head 14531 to swing from the position of pushing the first transmission member 1441 into the fixed seat 144 to the position of disengaging from the first transmission member 1441, and then to the position of pushing the second transmission member 1442 into the fixed seat 144.

[0106] The driver is used to deliver power to the transmission assembly 145. It is understood that the driver's transmission connection object is not limited and can be an indirect drive, such as a transmission connection between the driver and the lifting slider 1412; or a direct drive, such as a transmission connection with the first gear 1451 to drive the first gear 1451 to rise and fall, or a transmission connection with the connecting shaft 1456 to drive the connecting shaft 1456 to rotate.

[0107] The drive shaft 143 is in transmission connection with the rotating transmission member 1352, so that the embracing assembly 135 switches between the first state, the second state, and the third state during the raising and lowering of the first gear 1451. The drive shaft 143 and the rotating transmission member 1352 can be connected by any transmission method, such as, but not limited to, a belt drive, a chain drive, etc.

[0108] In the first state, the first gear 1451 is located at the lowest point, the encircling arm 1353 opens the coordination groove 13511, and the encircling side wall is flipped outward; in the second state, the first transmission member 1441 and the second transmission member 1442 are both disengaged from the pushing head 14531, the encircling arm 1353 opens the coordination groove 13511, and the encircling side wall is flipped downward; in the third state, the first gear 1451 is located at the highest point, and the encircling arm 1353 closes the coordination groove 13511.

[0109] In the design of the second driving member 140, the transmission component and the embracing component 135 are linked together, and the working principle is as follows:

[0110] In the second state, the first transmission member 1441 and the second transmission member 1442 are both disengaged from the push head 14531. At this time, the push head 14531 does not drive the drive shaft 143 to rotate via the first transmission member 1441 and the second transmission member 1442. In other words, the transmission assembly does not output rotational power to the rotating transmission member 1352 of the embracing assembly 135 via the drive shaft 143. In the first state, the first gear 1451 is at its lowest point. At this time, the push head 14531 pushes the first transmission member 1441 into the fixed seat 144. Compared with the second state, the first transmission member 1441 drives the drive shaft 143 to rotate a certain angle around a preset direction, and the drive shaft 143 drives the rotating transmission member 1352 and the embracing arm 1353 to rotate a certain angle. The transmission design causes the embracing arm 1353 to flip outward, thereby causing the embracing arm 1353 to open the coordination groove 13511 and flip the embracing side wall outward. In the third state, the first gear 1451 is at the highest point. At this time, the pushing head 14531 pushes the second transmission member 1442 into the fixed seat 144. Compared with the second state, the second transmission member 1442 drives the driving shaft 143 to rotate a certain angle around the preset direction, wherein the transmission design makes the encircling arm 1353 flip inward, so that the encircling arm 1353 closes the coordination groove 13511.

[0111] Based on the design of the second drive member 140 described above, when power is output through the second drive member 140, the lifting slider 1412 is raised and lowered, driving the track lifting section 112 to rise and fall. At the same time, under the transmission action of the various components of the transmission assembly, the swing arm 1453 drives the push head 14531 to swing to different working positions. At different working positions, the swing arm 1453 indirectly outputs different rotational effects to the rotating transmission member 1352 of the embracing assembly 135 through the drive shaft 143, causing the embracing assembly 135 to switch between the first state, the second state, and the third state, thereby adjusting the opening and closing state of the coordination groove 13511. It can be seen that based on this design, the lifting and lowering of the track lifting section 112 and the opening and closing of the embracing assembly 135 can be simultaneously adjusted through the second drive member 140. The coordination state between the embracing assembly 135 and the motor rotor 200 can be adjusted while the motor rotor 200 is being raised and lowered.

[0112] At the same time, based on the above design, since the embracing component 135 has a first state, a second state and a third state, in the first state, the embracing side wall flips outward, which is convenient for observing the wear of the wear-resistant layer on the surface of the pressure sensor; in the second state, the embracing side wall flips downward, close to the position where the embracing arm 1353 closes the coordination groove 13511. The second state serves as a transition stage, which facilitates the push head 14531 to gradually push the second transmission member 1442 to quickly and reliably switch to the third state in which the embracing arm 1353 closes the coordination groove 13511.

[0113] See also Figure 12 In some embodiments, the detection mechanism 130 further includes a position sensor 136 , and the position sensor 136 is connected to one end of the embracing arm 1353 away from the rotating transmission member 1352 . In the third state, the position sensor 136 is directed toward the support member 122 .

[0114] In the above design, the position sensor 136 is, for example but not limited to, a laser position sensor 136. When the position sensor 136 is facing the support member 122 in the third state, the distance between the position sensor 136 and the support member 122 can be tested to determine whether the encircling arm 1353 has rotated to a specific and accurate position, which is conducive to detecting the motor rotor 200 at a more accurate position to be tested, and is conducive to improving the accuracy of the detection results.

[0115] See also Figure 13 In some embodiments, a distance measuring through hole 1211 is provided through the sliding seat 121 along the height direction. In the second state, the position sensor 136 is aligned with the distance measuring through hole 1211.

[0116] In the above design, by detecting the distance from the position sensor 136 to the bottom in the second state, it is possible to determine whether the position sensor 136 is aligned with the distance measuring through hole 1211. When the position sensor 136 is aligned with the distance measuring through hole 1211, it indicates that the sliding seat 121 has driven the motor rotor 200 to the correct position in the conveying direction of the conveying track 110. At this time, the lifting track lifting section 112 can accurately engage the motor rotor shaft 210 with the coordination groove 13511, which is conducive to testing the motor rotor 200 at a more accurate test position and improving the accuracy of the test results. At the same time, it prevents position deviation from causing collision with the surrounding component 135.

[0117] See also Figure 14 In some embodiments, the detection mechanism 130 further includes a visual component 137, which is, for example, a camera; the visual component 137 is located on the outside of the encircling arm 1353, and corresponds one-to-one with the encircling arm 1353. In the first state, the encircling side wall faces the visual component 137.

[0118] In the above design, by setting a visual component 137 corresponding to the encircling arm 1353, it is convenient to monitor and observe the wear of the wear-resistant layer; moreover, based on the design of the above-mentioned second driving member 140, the encircling side wall is flipped outward in the first state, and the visual component 137 can be set on the outside of the encircling arm 1353. There is more space on the outside of the encircling arm 1353, which facilitates the installation of the visual component 137.

[0119] See also Figure 15 In some embodiments, the support groove 12211 is an arc-shaped groove, and the curvature radius of the arc-shaped groove is smaller than the curvature radius of the motor rotor shaft 210; both ends of the support member 122 are penetrated along the height direction to form an embracing channel 12212 corresponding to the embracing arm 1353, see Figure 12 and Figure 15 In the third state, one end of the embracing arm 1353 away from the rotating transmission member 1352 passes through the embracing channel 12212.

[0120] Based on the solution in which the position sensor 136 is connected to the embracing arm 1353, illustratively, in the third state, the position sensor 136 faces the side wall of the embracing channel 12212 opposite to the opening.

[0121] In the above design, the support groove 12211 is designed as an arcuate groove, which can smoothly contact the motor rotor shaft 210; wherein, the curvature radius of the arcuate groove is smaller than the curvature radius of the motor rotor shaft 210, that is, the radius of the arcuate groove is larger than the radius of the motor rotor shaft 210, so that the arcuate groove only partially contacts the motor rotor shaft 210, reducing the wear of the support groove 12211 during the detection process of the motor rotor 200, thereby eliminating the need to frequently replace the rotor bracket 120. Based on this, the two ends of the support member 122 are penetrated along the height direction to form an embracing channel 12212 for the embracing arm 1353 to pass through. Therefore, while reducing the contact range between the motor rotor shaft 210 and the support member 122, the embracing arm 1353 can contact the motor rotor shaft 210 more, and can maintain a good positioning effect on the motor rotor shaft 210, which is conducive to improving the accuracy of the detection results.

[0122] In a second aspect, an embodiment of the present application provides an automated motor assembly system, including the automated motor assembly system provided by the above embodiment.

[0123] In the present application, the automated motor assembly system may be provided with other functional devices according to conventional requirements, such as, but not limited to, providing a loading device for the motor rotor 200 upstream of the motor rotor rotation balancing test device 100, and, such as, but not limited to, providing a unloading device for the motor rotor 200, a sorting device for the motor rotor 200, a post-test adjustment device for the motor rotor 200, an assembly device for the motor rotor 200, etc. downstream of the motor rotor rotation balancing test device 100.

[0124] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A motor rotor rotation balance test device, characterized in that: include: A conveying track, comprising a track fixing section and a track lifting section distributed and connected along the conveying direction; A rotor bracket, comprising a sliding seat and a plurality of supporting members, wherein the sliding seat is slidably engaged with the conveying track along the conveying direction, the plurality of supporting members are fixed at intervals on the top of the sliding seat, and the top of each supporting member is provided with a supporting groove for supporting the motor rotor shaft; A detection mechanism, comprising a drive belt, a tensioning assembly, and a detector, wherein the drive belt is located above the track lifting section, the tensioning assembly is used to tension the drive belt, and the detector is used to detect the motor rotor; a power mechanism comprising a first driving member, a second driving member, and a third driving member, wherein the first driving member is used to drive the rotor bracket to slide relative to the conveying track along the conveying direction, the second driving member is used to drive the track lifting section to rise and fall between an initial position and a raised position, and the third driving member is used to drive the drive belt transmission; When the rotor bracket slides to the track lifting section and the track lifting section is located at the raised position, the motor rotor supported by the support member is located at a detection position corresponding to the detector, and the motor rotor core is slidably held against the bottom of the driving belt; The detection mechanism is further provided with an embracing component, the embracing component corresponds to the motor rotor shaft at the detection position, and the embracing component is configured to be able to switch between a state of releasing the motor rotor shaft and a state of embracing the motor rotor shaft; The embracing assembly includes a matching hoop, a rotating transmission member and an embracing arm. The bottom of the matching hoop is provided with a coordination groove that matches the motor rotor shaft. The embracing arms are spaced apart on both sides of the coordination groove. The embracing arms are rotatably connected to the matching hoop through the rotating transmission member. The embracing arms open and close the coordination groove by rotating, so that the embracing assembly can switch between the state of loosening the motor rotor shaft and embracing the motor rotor shaft.

2. The motor rotor rotation balance testing device according to claim 1, characterized in that: The embracing arm has an embracing side wall corresponding to the motor rotor shaft, and the detector includes a pressure sensor arranged on the embracing side wall. The surface of the pressure sensor is provided with a wear-resistant layer matching the motor rotor shaft, and the wear-resistant layer is used to slidably fit with the motor rotor shaft.

3. The motor rotor rotation balance testing device according to claim 2, characterized in that: The second driving member includes a vertical rail, a lifting arm, a driving shaft, a fixing seat, a transmission assembly and a driver; The vertical rail is provided with a lifting slide, and a lifting slider is slidably accommodated in the lifting slide; The lifting arm is connected between the lifting slider and the track lifting section; The driving shaft is rotatably connected to the fixing seat; A first transmission member is slidably provided on the side surface of the fixing seat, and the fixing seat is provided with a first elastic member that drives the first transmission member to extend out of the fixing seat. During the sliding process of the first transmission member, the first transmission member is connected to the driving shaft in a transmission manner so that the driving shaft rotates around a preset direction; a second transmission member is slidably provided on the bottom surface of the fixing seat, and the fixing seat is provided with a second elastic member that drives the second transmission member to extend out of the fixing seat. During the sliding process of the second transmission member, the second transmission member is connected to the driving shaft in a transmission manner so that the driving shaft rotates around a direction opposite to the preset direction; The transmission assembly includes a first gear, a second gear, a swing lever, a first connecting rod, a second connecting rod and a connecting shaft; the first gear is fixedly connected to the lifting slider, the second gear is meshed with the first gear, the second gear and the swing lever are fixedly sleeved on the connecting shaft, the first connecting rod and the second connecting rod are both rotatably passed through the connecting shaft, the end of the first connecting rod away from the connecting shaft is coaxially distributed with the first gear and rotatably connected, the end of the second connecting rod away from the connecting shaft is rotatably connected to the fixed seat, and the end of the swing lever away from the connecting shaft is protruding with a pushing head; wherein, when the first gear is at the lowest point, the pushing head pushes the first transmission member into the fixed seat, and when the first gear is at the highest point, the pushing head pushes the second transmission member into the fixed seat; The driver is used to deliver power to the transmission assembly; In which, the drive shaft is in transmission connection with the rotating transmission member so that when the first gear is lifted or lowered, the embracing assembly switches between the first state, the second state and the third state; in the first state, the first gear is located at the lowest point, the embracing arm opens the coordination groove, and the embracing side wall flips outward; in the second state, both the first transmission member and the second transmission member are disengaged from the pushing head, the embracing arm opens the coordination groove, and the embracing side wall flips downward; in the third state, the first gear is located at the highest point, and the embracing arm closes the coordination groove.

4. The motor rotor rotation balance testing device according to claim 3, characterized in that: The detection mechanism further includes a position sensor, and the position sensor is connected to one end of the embracing arm away from the rotating transmission member. In the third state, the position sensor faces the support member.

5. The motor rotor rotation balance testing device according to claim 4, characterized in that: A distance measuring through hole is formed through the sliding seat along the height direction. In the second state, the position sensor is aligned with the distance measuring through hole.

6. The motor rotor rotation balance testing device according to claim 3, characterized in that: The detection mechanism further includes a visual component, which is located on the outside of the encircling arm. In the first state, the encircling side wall faces the visual component.

7. The motor rotor rotation balance testing device according to any one of claims 3 to 6, characterized in that: The support groove is an arc-shaped groove, and the curvature radius of the arc-shaped groove is smaller than the curvature radius of the motor rotor shaft; an embracing channel corresponding to the embracing arm is opened through both ends of the support member along the height direction, and in the third state, the end of the embracing arm away from the rotating transmission member passes through the embracing channel.

8. An automated motor assembly system, characterized in that: It comprises the motor rotor rotation balance testing device according to any one of claims 1 to 7.

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