A rotor assembly device

Abstract

The utility model relates to a rotor assembly device, including base, support motor rotor, crossbeam is set up on the base, the crossbeam is set up the pressure bar on the sliding, the pressure bar is perpendicular to the base, clamping seat is set up on the base and is set up between the base and the pressure bar, along the sliding direction of pressure bar, the first limit hole is set up in the end of clamping seat close to the pressure bar, the second limit hole is set up in the end of clamping seat close to the base, the first limit hole is connected with the second limit hole, wherein, the movable support block is set up in the second limit hole, along the sliding direction of pressure bar, the third limit hole is set up on movable support block, when assembling, motor rotor sets up in the first limit hole, and the rotor pivot of the side of motor rotor close to the base extends into the third limit hole, the utility model discloses through clamping seat and clamping motor rotor and bearing, then through the installation of motor rotor and bearing of pressure bar extrusion is completed.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly equipment technology, and in particular to a rotor assembly device. Background Technology

[0002] Bearings need to be installed on the shaft of the motor rotor to support the rotor rotation and bear all radial and axial loads of the shaft.

[0003] An interference fit is used between the bearing inner ring and the rotor shaft to prevent slippage. In small-batch production, to reduce production costs, the rotor shaft and bearing are manually installed by workers. However, the interference fit increases the difficulty of installation, making it challenging for workers to manually press the bearing in, control vibrations during installation, and ensure consistent pressure along the shaft's axis. Vibrations during installation, and incorrect force application, can damage the bearing's raceway and rolling element surfaces, leading to bearing misalignment, uneven contact between the balls and raceways, indentations, jamming, and even bearing failure.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rotor assembly device to simplify the installation of bearings on the rotor shaft.

[0006] The technical solution of this utility model is as follows:

[0007] A rotor assembly apparatus, the rotor assembly apparatus comprising:

[0008] The base supports the motor rotor;

[0009] A crossbeam is mounted on the base; a pressure rod is slidably mounted on the crossbeam; the pressure rod is perpendicular to the base.

[0010] A clamping seat is disposed on the base and between the base and the pressure rod; along the sliding direction of the pressure rod, a first limiting hole is formed at one end of the clamping seat near the pressure rod, and a second limiting hole is formed at one end of the clamping seat near the base; the first limiting hole communicates with the second limiting hole;

[0011] The second limiting hole contains a movable support block; a third limiting hole is provided on the movable support block along the sliding direction of the pressure rod; during assembly, the motor rotor is placed in the first limiting hole, and the rotor shaft of the motor rotor on the side near the base extends into the third limiting hole.

[0012] The base has a fixing hole, and the clamping seat is disposed in the fixing hole.

[0013] The base is provided with a fastening screw, which passes through the base and contacts the clamping seat.

[0014] Along the sliding direction of the pressure rod, a clearance hole is provided on the base; the clearance hole penetrates the base.

[0015] The side of the clamping seat is also provided with a through hole, which is connected to the first limiting hole.

[0016] A protective ring is fitted onto one end of the clamping seat near the base, and the protective ring is positioned between the clamping seat and the base.

[0017] Around the third limiting hole, the movable support block has an annular protrusion at one end near the pressure rod.

[0018] A mounting sleeve is also provided; after the motor rotor is placed in the second limiting hole, the mounting sleeve is sleeved on the rotor shaft at one end of the motor rotor near the pressure rod.

[0019] A drive shaft is also provided on the crossbeam; along the sliding direction of the pressure rod, a driven tooth is provided on the pressure rod; and an active tooth is provided on the drive shaft in the circumferential direction to engage the driven tooth.

[0020] A limit rod is also provided on the crossbeam; an elastic element is provided on the limit rod to connect to the pressure rod; the elastic element is located at the end of the pressure rod away from the base.

[0021] The beneficial technical effects of this utility model are as follows:

[0022] (1) The rotor assembly device of this utility model has a pressure rod on the crossbeam, and a first limiting hole is opened on the clamping seat along the sliding direction of the pressure rod, and a third limiting hole is opened on the movable support block. When assembling the rotor shaft and bearings, the first limiting hole contacts the main structure of the motor rotor, and the third limiting hole contacts the rotor shaft, restricting the position of the motor rotor in the horizontal plane. At the same time, one bearing is sleeved on the rotor shaft and set in the second limiting hole. The other bearing is sleeved on the rotor shaft. Then, the bearing is assembled by pushing the pressure rod along the sliding path of the pressure rod to squeeze the motor rotor. There is no need for personnel to adjust the direction of force, and the applied pressure can also be achieved by the weight and inertia of the pressure rod, making the installation of the bearing simpler. In addition, the positions of the two bearings on the motor rotor are set together. When the pressure rod is pressed down once, it drives the motor rotor to move as a whole, and the two bearings can be sleeved on the rotor shaft at the same time, which greatly improves the assembly efficiency of the motor rotor and bearings.

[0023] (2) Furthermore, a fixing hole is provided on the base to limit the position of the clamping seat, and a limit screw is provided to fix the position of the clamping seat, so as to facilitate the replacement and maintenance of the clamping seat.

[0024] (3) Furthermore, the clamping seat is also provided with a through hole that connects to the first limiting hole, so that the bearing can be placed in the second limiting hole and the bearing clamping steps can be simplified. Attached Figure Description

[0025] Figure 1 A front view structural schematic diagram of a rotor assembly apparatus according to an embodiment of the present disclosure is shown.

[0026] Figure 2 A schematic diagram of the assembly structure of the clamping seat and the motor rotor in a rotor assembly apparatus according to an embodiment of the present disclosure is shown.

[0027] Figure 3 A top view of the base structure is shown in a rotor assembly apparatus according to an embodiment of the present disclosure.

[0028] Figure 4 A schematic diagram of the assembly structure between the pressure rod and the drive shaft in a rotor assembly apparatus according to an embodiment of the present disclosure is shown.

[0029] Marked in the attached diagram:

[0030] 1. Base; 11. Fixing hole; 111. Fastening screw; 12. Clearance hole; 2. Clamping seat; 21. First limiting hole; 22. Second limiting hole; 23. Protective ring; 24. Through hole; 3. Movable support block; 31. Annular protrusion; 32. Third limiting hole; 4. Assembly sleeve; 5. Crossbeam; 51. Column; 52. Pressure rod; 521. Driven gear; 53. Drive shaft; 531. Active gear; 6. Limiting rod; 61. Elastic element; 7. Motor rotor; 71. Rotor shaft; 72. Bearing. Detailed Implementation

[0031] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0032] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Figure 1 A front view structural schematic diagram of a rotor assembly apparatus according to an embodiment of the present disclosure is shown. Figure 2 A schematic diagram of the assembly structure of the clamping seat and the motor rotor in a rotor assembly apparatus according to an embodiment of this disclosure is shown. Please refer to... Figure 1 and Figure 2 The rotor assembly device includes a base 1 supporting a motor rotor 7. A crossbeam 5 is mounted on the base 1. The crossbeam 5 is connected to the base 1 via a column 51. A pressure rod 52 is slidably mounted on the crossbeam 5. The pressure rod 52 is perpendicular to the base 1. A clamping seat 2 is mounted on the base 1 and positioned between the base 1 and the pressure rod 52. Along the sliding direction of the pressure rod 52, a first limiting hole 21 is formed at one end of the clamping seat 2 near the pressure rod 52, and a second limiting hole 22 is formed at the other end of the clamping seat 2 near the base 1. The first limiting hole 21 communicates with the second limiting hole 22. A movable support block 3 is provided within the second limiting hole 22. Along the sliding direction of the pressure rod 52, a third limiting hole 32 is formed on the movable support block 3. During assembly, the motor rotor 7 is positioned within the first limiting hole 21, and the first limiting hole 21 contacts the main structure of the motor rotor 7. The rotor shaft 71 of the motor rotor 7, near the base 1, extends into the third limiting hole 32, which contacts the rotor shaft 71. The first limiting hole 21 engages with the third limiting hole 32, restricting the position of the motor rotor 7 in the horizontal plane. Simultaneously, one bearing 72 is fitted onto the rotor shaft 71 and positioned within the second limiting hole 22. The other bearing is fitted onto the rotor shaft 71. The bearing 72 is then assembled by pushing the pressure rod 52 along its sliding path to compress the motor rotor 7. No manual adjustment of the applied force is required; the pressure applied can be utilized by the weight and inertia of the pressure rod 52, simplifying the installation of the bearing 72. Furthermore, with the two bearings 72 positioned simultaneously on the motor rotor 7, a single press of the pressure rod 52 drives the entire motor rotor 7 to move, allowing both bearings 72 to be fitted onto the rotor shaft 71 at the same time, significantly improving the assembly efficiency of the motor rotor 7 and bearings 72. In this embodiment, the movable support block 3 is engaged with the clamping seat 2 to facilitate the replacement of the movable support block 3. By replacing the movable support block 3 with one of different heights, it is possible to accommodate rotor shafts 71 of different lengths for different models of motor rotors 7.

[0034] Figure 3 A top view of the base structure is shown in a rotor assembly apparatus according to an embodiment of this disclosure. Please refer to... Figure 1 and Figure 3 A fixing hole 11 is provided on the base 1, and the clamping seat 2 is set in the fixing hole 11. The fixing hole 11 restricts the position of the clamping seat 2, and a limit screw is provided to fix the position of the clamping seat 2, which facilitates the maintenance and replacement of the clamping seat 2.

[0035] Preferably, a fastening screw 111 is provided on the base 1, and the fastening screw 111 passes through the base 1 and contacts the clamping seat 2. By loosening or tightening the fastening screw 111, the clamping seat 2 on the base 1 can be fixed or loosened, which facilitates the maintenance and replacement of the clamping seat 2.

[0036] More preferably, a clearance hole 12 is provided on the base 1 along the sliding direction of the pressure rod 52. The clearance hole 12 penetrates the base 1. The rotor shaft 71 that exceeds the third limiting hole 32 can extend into the clearance hole 12 to avoid interference between the rotor shaft 71 and the base 1 and damage to the rotor shaft 71.

[0037] Please refer to Figure 1 and Figure 2 The side of the clamping seat 2 is also provided with a through hole 24, which connects to the first limiting hole 21. The bearing 72 can be easily placed in the second limiting hole 22 through the first limiting hole 21, simplifying the clamping steps of the bearing 72.

[0038] Preferably, a protective ring 23 is fitted onto the end of the clamping seat 2 near the base 1, and the protective ring 23 is positioned between the clamping seat 2 and the base 1. The clamping seat 2 contacts the base 1 through the protective ring 23, preventing the clamping seat 2 from directly contacting the base 1. The clamping seat 2 and the protective ring 23 are separately configured, allowing the clamping seat 2 and the protective ring 23 to be made of different materials, thus extending the service life of the entire rotor assembly device.

[0039] More preferably, an annular protrusion 31 is provided at one end of the movable support block 3 near the pressure rod 52, surrounding the third limiting hole 32. The movable support block 3 contacts the bearing 72 through the surface of the annular protrusion 31. By providing a precision-machined surface on the annular protrusion 31, the bearing 72 is supported more stably, the position of the bearing 72 in the vertical direction is determined, and the parallelism between the bearing 72 and the horizontal plane is improved.

[0040] In some embodiments, a mounting sleeve 4 is also provided. After the motor rotor 7 is disposed within the second limiting hole 22, the mounting sleeve 4 is fitted onto the rotor shaft 71 of the motor rotor 7 near the end of the pressure rod 52. Through the mounting sleeve 4, the pressure of the pressure rod 52 acts directly on the bearing 72 of the motor rotor 7, avoiding the rotor bearing 72.

[0041] Figure 4A schematic diagram of the assembly structure between the pressure rod and the drive shaft in a rotor assembly apparatus according to an embodiment of this disclosure is shown. Please refer to... Figure 1 and Figure 4 A drive shaft 53 is also provided on the crossbeam 5. A driven tooth 521 is provided on the pressure rod 52 along its sliding direction. A driving tooth 531 is circumferentially provided on the drive shaft 53, meshing with the driven tooth 521. By rotating the drive shaft 53, the user drives the pressure rod 52 to slide up and down on the crossbeam 5 via the driving tooth 531 and the driven tooth 521, performing compression and resetting. The bearing 72 is mounted on the rotor shaft 71.

[0042] Preferably, a limiting rod 6 is also provided on the crossbeam 5. An elastic element 61 is provided on the limiting rod 6 to connect to the pressure rod 52. The elastic element 61 is located at the end of the pressure rod 52 away from the base 1. After the pressure rod 52 is driven downward by the drive shaft 53 to press the bearing 72, the operator only needs to release the drive shaft 53. At this time, the elastic element 61 returns to its original position and pulls the pressure rod 52 back up. The automatic reset of the pressure rod 52 simplifies the assembly steps of the bearing 72.

[0043] The specific workflow of this utility model is as follows:

[0044] When assembling bearing 72 onto rotor shaft 71, the operator first places bearing 72 into the second limiting hole 22 along the through hole 24, with the axis of bearing 72 perpendicular to the base 1. Then, the motor rotor 7 is placed in the first limiting hole 21, with the rotor shaft 71 on the side of the motor rotor 7 closest to the base 1 extending into the third limiting hole 32. The operator can then move another bearing 72 and place it onto the rotor shaft 71 on the side of the motor rotor 7 furthest from the base 1. Finally, a sleeve is placed onto the rotor shaft 71 on the side of the motor rotor 7 furthest from the base 1, completing the clamping of the motor rotor 7 and bearing 72. At this point, the operator controls the drive shaft 53 to rotate, driving the pressure rod 52 downwards until the pressure rod 52 contacts the sleeve, and both bearings 72 are positioned in their preset positions on the rotor shaft 71, completing the installation of the motor rotor 7 and bearing 72.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A rotor assembly device, characterized in that, The rotor assembly device includes: The base supports the motor rotor; A crossbeam is mounted on the base; a pressure rod is slidably mounted on the crossbeam; the pressure rod is perpendicular to the base. A clamping seat is disposed on the base and between the base and the pressure rod; along the sliding direction of the pressure rod, a first limiting hole is formed at one end of the clamping seat near the pressure rod, and a second limiting hole is formed at one end of the clamping seat near the base; the first limiting hole communicates with the second limiting hole; The second limiting hole contains a movable support block; a third limiting hole is provided on the movable support block along the sliding direction of the pressure rod; during assembly, the motor rotor is placed in the first limiting hole, and the rotor shaft of the motor rotor on the side near the base extends into the third limiting hole.

2. The rotor assembly device as described in claim 1, characterized in that: The base has a fixing hole, and the clamping seat is disposed in the fixing hole.

3. The rotor assembly device as described in claim 1, characterized in that: The base is provided with a fastening screw, which passes through the base and contacts the clamping seat.

4. The rotor assembly device as described in claim 1, characterized in that: Along the sliding direction of the pressure rod, a clearance hole is provided on the base; the clearance hole penetrates the base.

5. The rotor assembly device as described in claim 1, characterized in that: The side of the clamping seat is also provided with a through hole, which is connected to the first limiting hole.

6. The rotor assembly device as described in claim 1, characterized in that: A protective ring is fitted onto one end of the clamping seat near the base, and the protective ring is positioned between the clamping seat and the base.

7. The rotor assembly device as described in claim 1, characterized in that: Around the third limiting hole, the movable support block has an annular protrusion at one end near the pressure rod.

8. The rotor assembly device as described in claim 1, characterized in that: A mounting sleeve is also provided; after the motor rotor is placed in the second limiting hole, the mounting sleeve is sleeved on the rotor shaft at one end of the motor rotor near the pressure rod.

9. The rotor assembly device as described in claim 1, characterized in that: A drive shaft is also provided on the crossbeam; along the sliding direction of the pressure rod, a driven tooth is provided on the pressure rod; and an active tooth is provided on the drive shaft in the circumferential direction to engage the driven tooth.

10. The rotor assembly device as described in claim 1, characterized in that: A limit rod is also provided on the crossbeam; an elastic element is provided on the limit rod to connect to the pressure rod; the elastic element is located at the end of the pressure rod away from the base.

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