Bearing press-fitting equipment for single-phase and three-phase centrifuges

Abstract

The utility model discloses a single three-phase centrifuge bearing press-fitting device which comprises a machine table, a centrifuge installation structure, a bearing installation structure, a bearing seat used for bearing a motor rotor and a moving structure driving the bearing seat to move are arranged on the machine table, and the centrifuge installation structure comprises a first press-fitting seat used for bearing a centrifuge. The bearing mounting structure comprises a first press-fitting seat and a first driving unit for driving the first press-fitting seat to move, the bearing mounting structure comprises a second press-fitting seat and a third press-fitting seat which are used for bearing a bearing and a second driving unit for driving the second press-fitting seat to move, and the moving structure comprises a transverse moving module for driving the bearing seat to move horizontally and transversely and a sliding block module arranged below the transverse moving module. And the transverse moving module drives the bearing seat to move, so that the bearing seat is arranged opposite to the centrifuge mounting structure or the bearing mounting structure.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to a single-phase and three-phase centrifuge bearing press-fitting device. Background Technology

[0002] The main function of the centrifuge on the motor is to control the start and operation of the motor. The centrifuge is usually installed on the rotor of the motor, and the circuit is connected in series in the starting circuit. When the motor is stationary, the centrifuge is in a closed state, and the starting winding and the starting capacitor are connected in parallel in the circuit, so that the motor starts at low speed. When the motor speed reaches three-quarters of the normal speed, the centrifuge is opened by force, the starting winding is disengaged, the running winding works, and the motor completes the starting process.

[0003] In the current motor assembly process, centrifuges and bearings are usually installed on the motor rotor manually, which results in low production efficiency and makes it impossible to guarantee the quality of installation. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a single-phase and three-phase centrifuge bearing press-fitting device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A single-phase or three-phase centrifuge bearing press-fitting device includes a machine base, on which a centrifuge mounting structure for press-fitting centrifuges, a bearing mounting structure for press-fitting bearings, a bearing seat for supporting and fixing a motor rotor, and a moving structure for driving the bearing seat to move.

[0007] The centrifuge mounting structure includes a first press-fitting seat for supporting the centrifuge, and a first drive unit for driving the first press-fitting seat to move. The first drive unit drives the first press-fitting seat to move toward the support seat and presses the centrifuge on the first press-fitting seat onto one end of the motor rotor.

[0008] The bearing mounting structure includes a second press-fitting seat and a third press-fitting seat for carrying the bearing, and a second drive unit for driving the second press-fitting seat to move. The second drive unit drives the second press-fitting seat to move toward the carrier seat, so that the bearing on the second press-fitting seat is press-fitted onto one end of the motor rotor, and the second press-fitting seat pushes the carrier seat to move toward the third press-fitting seat, so that the bearing on the third press-fitting seat is press-fitted onto the other end of the motor rotor.

[0009] The movable structure includes a lateral movement module that drives the carrier to move horizontally, and a slider module disposed below the lateral movement module. The lateral movement module drives the carrier to move so that the carrier is positioned opposite to the centrifuge mounting structure or the bearing mounting structure.

[0010] Preferably, the support base is provided with an electromagnet for adsorbing and fixing the motor rotor. Through the above improvements, the motor rotor is fixed by adsorbing and fixing it with an electromagnet, so as to ensure the stability of the motor rotor during the installation of the centrifuge and bearing.

[0011] Preferably, the machine base is equipped with a bearing conveying module for conveying bearings to the second and third press-fitting seats. The bearing conveying module includes a feeding seat, a feeding channel for placing bearings, and a receiving plate slidably disposed on the feeding seat. The receiving plate has a feed inlet for placing bearings. A first pushing unit is provided on the feeding channel, which pushes the bearings into the feed inlet. The feeding plate is equipped with a lifting unit that drives the receiving plate to slide up and down. The lifting unit drives the receiving plate to move up and down so that the receiving plate has a first position opposite to the feeding channel and a second position opposite to the second or third press-fitting seat. The receiving plate is equipped with a second pushing unit. When the receiving plate is in the second position, the second pushing unit pushes the bearings into the second or third press-fitting seat. Through the above improvements, the receiving plate receives materials in the first position, moves to the second position under the action of the lifting unit, and places the bearings into the second or third press-fitting seat through the second pushing unit, thereby realizing automatic bearing feeding.

[0012] Preferably, the machine platform is equipped with an installation detection sensor for detecting the centrifuge. Through the above improvements, the centrifuge is ensured to be installed in place before assembly, thereby ensuring the quality of assembly.

[0013] Preferably, the transverse module includes a movable plate disposed on the slider module and a transverse unit disposed on the movable plate, and the bearing seat is connected to the moving end of the transverse unit. Through the above improvements, the transverse unit drives the movable plate to move, so that the bearing seat is positioned opposite to the centrifuge mounting structure or the bearing mounting structure, thereby realizing the installation of the centrifuge and the bearing.

[0014] Preferably, the motor rotor includes a main body and a rotating shaft. The first, second, and third press-fit seats have clearance grooves for the rotating shaft to be inserted. With the above improvements, during the installation process, the rotating shaft of the motor rotor will be inserted into the clearance groove, so that the centrifuge and bearing on the first, second, and third press-fit seats can be sleeved onto the rotating shaft, thereby realizing the rapid installation of the bearing and centrifuge.

[0015] Preferably, the machine base is also provided with a guide seat. One end of the motor rotor is positioned opposite to the first pressing seat, and the other end is positioned opposite to the guide seat. The guide seat abuts against the motor rotor to restrict the movement of the bearing seat. With the above improvement, the centrifuge is only installed at one end of the motor rotor. When the centrifuge is installed, the first pressing seat moves toward the motor rotor, so that one end of the shaft is inserted into the first pressing seat, and the centrifuge on the first pressing seat is fitted onto the shaft. During the pressing process, the bearing seat moves toward the guide seat, so that the other end of the shaft is inserted into the guide seat. The guide seat guides the motor rotor and restricts its movement stroke to ensure the accuracy of the centrifuge installation position.

[0016] Preferably, the lateral movement unit drives the carrier to move, so that the carrier has a first position and a second position. When the carrier is in the first position, the motor rotor is opposite to the first pressing seat. When the carrier is in the second position, the motor rotor is opposite to the second pressing seat and the third pressing seat. Through the above improvement, the lateral movement unit drives the carrier to slide between the first position and the second position, so that the carrier is opposite to the centrifuge mounting structure or the bearing mounting structure for the installation of the centrifuge or the bearing.

[0017] Preferably, the machine base is provided with a reset spring, one end of which is connected to the machine base and the other end is connected to the moving plate. With the above improvement, after the centrifuge or bearing is completed, the moving plate will be reset under the action of the reset spring, so that it returns to the initial position.

[0018] Preferably, a buffer is provided on the machine base, and the buffer abuts against the moving plate. Through the above improvements, the stability of the moving plate during reset is enhanced, and the motor rotor is prevented from falling off the support.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] By placing the motor rotor onto the carrier and the centrifuge onto the first pressing seat, the first drive unit drives the first pressing seat to move toward one end of the motor rotor, pressing the centrifuge onto one end of the motor rotor. After the centrifuge installation is completed, the lateral movement module can drive the carrier to move laterally, and the second pressing seat moves toward the motor rotor, so that both ends of the motor rotor are inserted into the second and third pressing seats respectively, pressing the bearings onto both ends of the motor rotor. After the bearing installation is completed, the lateral movement module can drive the carrier to move laterally for unloading. This achieves automatic installation of the centrifuge and bearings, significantly improving production efficiency and, compared to manual installation, improving installation quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the movable structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the bearing conveying module of this utility model;

[0024] Figure 4 This is an exploded view of the bearing conveying module of this utility model;

[0025] In the diagram: 1. Machine base; 2. Centrifuge mounting structure; 3. Bearing mounting structure; 4. Moving structure; 5. Support seat; 6. Centrifuge; 7. Bearing; 8. Motor rotor; 1.1. First pressing seat; 1.2. First drive unit; 1.3. Second pressing seat; 1.4. Third pressing seat; 1.5. Second drive unit; 1.6. Transverse movement module; 1.7. Slider module; 1.8. Loading seat; 2.1. Electromagnet; 2.2. Bearing conveyor Module; 3.1 Feeding channel; 3.2 Receiving plate; 3.3 Feed inlet; 4.1 Moving plate; 4.2 Horizontal movement unit; 5.1 Main body; 5.2 Rotating shaft; 5.3 Clearance groove; 5.4 Guide seat; 6.1 First position; 6.2 Second position; 7.1 Reset tension spring; 7.2 Buffer; 7.3 Installation detection sensor; 8.1 First pushing unit; 8.2 Second pushing unit; 8.3 Lifting unit; Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0028] like Figure 1-4 As shown, a single-phase or three-phase centrifuge bearing press-fitting device includes a machine base 1, a centrifuge mounting structure 2 for press-fitting centrifuges 6, a bearing mounting structure 3 for press-fitting bearings 7, a support seat 5 for supporting and fixing motor rotors 8, and a moving structure 4 for moving the support seat 5.

[0029] Specifically, the centrifuge mounting structure 2 includes a first pressing seat 1.1 for supporting the centrifuge 6, and a first driving unit 1.2 for driving the first pressing seat 1.1 to move. The first driving unit 1.2 drives the first pressing seat 1.1 to move toward the support seat 5 and presses the centrifuge 6 on the first pressing seat 1.1 onto one end of the motor rotor 8.

[0030] The bearing mounting structure 3 includes a second press-fit seat 1.3 and a third press-fit seat 1.4 for supporting the bearing 7, and a second drive unit 1.5 for driving the second press-fit seat 1.3 to move. The second drive unit 1.5 drives the second press-fit seat 1.3 to move toward the support seat 5, so that the bearing 7 on the second press-fit seat 1.3 is press-fitted onto one end of the motor rotor 8, and the second press-fit seat 1.3 pushes the support seat 5 to move toward the third press-fit seat 1.4, so that the bearing 7 on the third press-fit seat 1.4 is press-fitted onto the other end of the motor rotor 8.

[0031] Furthermore, the moving structure 4 includes a transverse module 1.6 that drives the carrier 5 to move horizontally, and a slider module 1.7 disposed below the transverse module 1.6. The transverse module 1.6 drives the carrier 5 to move so that the carrier 5 is positioned opposite the centrifuge mounting structure 2 or the bearing mounting structure 3.

[0032] During the assembly process, the motor rotor 8 is first placed on the support seat 5, and the centrifuge 6 is placed on the first pressing seat 1.1. As the first drive unit 1.2 drives the first pressing seat 1.1 to move towards the support seat 5, the first pressing seat 1.1 abuts against the motor rotor 8 and presses the centrifuge 6 onto the end of the motor rotor 8. After the centrifuge 6 is installed, the transverse module 1.6 drives the support seat 5 to move laterally, so that the support seat 5 is positioned opposite the bearing mounting structure 3. The second pressing seat 1.3 moves towards the motor rotor 8 and abuts against the motor rotor 8, so that the motor rotor 8 moves towards the third pressing seat 1.4, so that both ends of the motor rotor 8 are inserted into the second pressing seat 1.3 and the third pressing seat 1.4 respectively, and the bearing 7 is pressed onto both ends of the motor rotor 8. After the bearing 7 is installed, the transverse module 1.6 can drive the support seat 5 to move laterally for unloading, realizing the automatic installation of the centrifuge 6 and the bearing 7, greatly improving production efficiency, and improving the installation quality compared to manual installation.

[0033] Preferably, a robotic arm can be used to load and unload the motor rotor 8 and the centrifuge 6, thereby significantly improving the efficiency of the entire assembly process.

[0034] like Figure 1 As shown, preferably, the machine base 1 is equipped with an installation detection sensor 7.3 for detecting the centrifuge 6, ensuring that the centrifuge 6 is installed in place before assembly, so as to ensure the quality of assembly.

[0035] like Figure 2 As shown, in a further explanation of the embodiment of the support base 5, the support base 5 is provided with an electromagnet 2.1 for adsorbing and fixing the motor rotor 8. The electromagnet 2.1 is used to adsorb and fix the motor rotor 8 to ensure the stability of the motor rotor 8 during the installation of the centrifuge 6 and the bearing 7.

[0036] When it is necessary to fix the support base 5, the electromagnet 2.1 can be energized to attract the motor rotor 8 onto the support base 5. When it is necessary to unload the motor rotor 8, the electromagnet 2.1 can be de-energized, which improves the reliability of fixing the motor rotor 8 and the convenience of unloading.

[0037] like Figure 1 , Figure 3 As shown, to further explain the feeding of bearing 7, the machine base 1 is equipped with a bearing conveying module 2.2 for conveying bearing 7 to the second pressing seat 1.3 and the third pressing seat 1.4. The bearing conveying module 2.2 includes a feeding seat 1.8, a feeding channel 3.1 for placing bearing 7, and a receiving plate 3.2 slidably disposed on the feeding seat 1.8. The receiving plate 3.2 has a feeding port 3.3 for placing bearing 7. The feeding channel 3.1 is equipped with a first pushing unit 8.1, which pushes bearing 7 into the feeding port 3.3.

[0038] Furthermore, the feeding plate is equipped with a lifting unit 8.3 that drives the receiving plate 3.2 to slide up and down. The lifting unit 8.3 drives the receiving plate 3.2 to move up and down so that the receiving plate 3.2 has a first position 6.1 opposite to the feeding channel 3.1 and a second position 6.2 opposite to the second pressing seat 1.3 or the third pressing seat 1.4. The receiving plate 3.2 is equipped with a second pushing unit 8.2. When the receiving plate 3.2 is in the second position 6.2, the second pushing unit 8.2 pushes the bearing 7 into the second pressing seat 1.3 or the third pressing seat 1.4.

[0039] During the entire feeding process of bearing 7, the first pushing unit 8.1 first pushes the bearing 7 on the feeding channel 3.1. At this time, the receiving plate 3.2 receives the bearing at the first position 6.1. The first pushing unit 8.1 places the bearing 7 into the feed port 3.3. Under the action of the lifting unit 8.3, it moves to the second position 6.2 and is placed into the second pressing seat 1.3 or the third pressing seat 1.4 by the second pushing unit 8.2, so as to realize the automatic feeding of bearing 7 and greatly improve the assembly efficiency.

[0040] like Figure 1 , Figure 2As shown, as a further explanation of the moving structure 4, the transverse module 1.6 includes a moving plate 4.1 disposed on the slider module 1.7 and a transverse unit 4.2 disposed on the moving plate 4.1. The bearing seat 5 is connected to the moving end of the transverse unit 4.2. The transverse unit 4.2 drives the moving plate 4.1 to move, so that the bearing seat 5 is positioned opposite to the centrifuge mounting structure 2 or the bearing mounting structure 3, so as to realize the installation of the centrifuge 6 and the bearing 7.

[0041] Furthermore, the lateral movement unit 4.2 drives the carrier 5 to move, so that the carrier 5 has a first position 6.1 and a second position 6.2. When the carrier 5 is in the first position 6.1, the motor rotor 8 is positioned opposite to the first pressing seat 1.1. When the carrier 5 is in the second position 6.2, the motor rotor 8 is positioned opposite to the second pressing seat 1.3 and the third pressing seat 1.4. The lateral movement unit 4.2 drives the carrier 5 to slide between the first position 6.1 and the second position 6.2, so that the carrier 5 is positioned opposite to the centrifuge mounting structure 2 or the bearing mounting structure 3, so as to install the centrifuge 6 or the bearing 7, and ensure the accuracy of the installation of the centrifuge 6 and the bearing 7.

[0042] like Figure 1 As shown, a reset spring 7.1 is provided on the machine base 1. One end of the reset spring 7.1 is connected to the machine base 1, and the other end is connected to the moving plate 4.1. After the centrifuge 6 or bearing 7 is completed, the first pressing seat 1.1 or the second pressing seat 1.3 will retract, and the moving plate 4.1 will be reset under the action of the reset spring, so that it returns to its initial position.

[0043] Preferably, the machine base 1 is equipped with a buffer 7.2. When the moving plate 4.1 is reset, the buffer 7.2 abuts against the moving plate 4.1, thereby improving the stability of the moving plate 4.1 during reset and preventing the motor rotor 8 from falling off the support 5.

[0044] like Figure 1 As shown, further explanation of the cooperation between the motor rotor 8, centrifuge 6, and bearing 7 is provided. The motor rotor 8 includes a body 5.1 and a rotating shaft 5.2. A clearance groove 5.3 for inserting the rotating shaft 5.2 is formed on the first press-fit seat 1.1, the second press-fit seat 1.3, and the third press-fit seat 1.4.

[0045] During installation, the shaft 5.2 of the motor rotor 8 is inserted into the clearance groove 5.3, so that the centrifuge 6 and bearing 7 on the first press-fit seat 1.1, the second press-fit seat 1.3, and the third press-fit seat 1.4 are fitted onto the shaft 5.2, thereby achieving the rapid installation of the bearing 7 and the centrifuge 6.

[0046] The centrifuge 6 has a placement hole, which is used to cooperate with the first pressing seat 1.1 so that the centrifuge 6 can be placed on the first pressing seat 1.1. The centrifuge 6 also has a connection hole. When the rotating shaft 5.2 is placed into the clearance groove 5.3 of the first pressing seat 1.1, the rotating shaft 5.2 is inserted into the connection hole so that the centrifuge 6 can be installed on the rotating shaft 5.2.

[0047] In addition, the second press-fitting seat 1.3 moves toward the motor rotor 8 and abuts against the motor rotor 8, causing the motor rotor 8 to move toward the third press-fitting seat 1.4, so that both ends of the motor rotor 8 are inserted into the clearance grooves 5.3 on the second press-fitting seat 1.3 and the third press-fitting seat 1.4 respectively, so that the bearing 7 is press-fitted onto both ends of the motor rotor 8 to complete the installation of the bearing 7.

[0048] Preferably, the machine base 1 is also provided with a guide seat 5.4. One end of the motor rotor 8 is positioned opposite to the first pressing seat 1.1, and the other end is positioned opposite to the guide seat 5.4. The guide seat abuts against the motor rotor 8 to restrict the movement of the bearing seat 5.

[0049] Since the centrifuge 6 is only installed at one end of the motor rotor 8, when the centrifuge 6 is installed, the first pressing seat 1.1 moves toward the motor rotor 8, so that one end of the rotating shaft 5.2 is inserted into the first pressing seat 1.1, and the centrifuge 6 on the first pressing seat 1.1 is fitted onto the rotating shaft 5.2. During the pressing process, the bearing seat 5 moves toward the guide seat 5.4, so that the other end of the rotating shaft 5.2 is inserted into the guide seat 5.4. The guide seat 5.4 is used to guide the motor rotor 8 and limit its movement stroke to ensure the accuracy of the centrifuge 6 installation position.

[0050] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A single-phase or three-phase centrifuge bearing press-fitting device, comprising a machine base (1), characterized in that, The machine base (1) is provided with a centrifuge mounting structure (2) for pressing centrifuge (6), a bearing mounting structure (3) for pressing bearing (7), a bearing seat (5) for supporting and fixing motor rotor (8), and a moving structure (4) for driving the bearing seat (5) to move. The centrifuge mounting structure (2) includes a first press-fit seat (1.1) for carrying the centrifuge (6), and a first drive unit (1.2) for driving the first press-fit seat (1.1) to move. The first drive unit (1.2) drives the first press-fit seat (1.1) to move toward the support seat (5) and presses the centrifuge (6) on the first press-fit seat (1.1) onto one end of the motor rotor (8). The bearing mounting structure (3) includes a second press-fit seat (1.3) and a third press-fit seat (1.4) for carrying the bearing (7), and a second drive unit (1.5) for driving the second press-fit seat (1.3) to move. The second drive unit (1.5) drives the second press-fit seat (1.3) to move toward the support seat (5), so that the bearing (7) on the second press-fit seat (1.3) is pressed onto one end of the motor rotor (8), and the second press-fit seat (1.3) pushes the support seat (5) to move toward the third press-fit seat (1.4), so that the bearing (7) on the third press-fit seat (1.4) is pressed onto the other end of the motor rotor (8). The moving structure (4) includes a transverse module (1.6) for driving the carrier (5) to move horizontally, and a slider module (1.7) disposed below the transverse module (1.6). The transverse module (1.6) drives the carrier (5) to move so that the carrier (5) is positioned opposite to the centrifuge mounting structure (2) or the bearing mounting structure (3).

2. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The support base (5) is provided with an electromagnet (2.1) for adsorbing and fixing the motor rotor (8).

3. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The machine base (1) is equipped with a bearing conveying module (2.2) for conveying bearings (7) to the second press-fitting seat (1.3) and the third press-fitting seat (1.4). The bearing conveying module (2.2) includes a loading seat (1.8), a loading channel (3.1) for placing bearings (7), and a receiving plate (3.2) slidably disposed on the loading seat (1.8). The receiving plate (3.2) is provided with a feed port (3.3) for placing bearings (7). The loading channel (3.1) is provided with a first pushing unit (8.1). The first pushing unit (8.1) pushes the bearings (7) into the feed port (3.3). The feeding seat (1.8) is provided with a lifting unit (8.3) that drives the receiving plate (3.2) to slide up and down. The lifting unit (8.3) drives the receiving plate (3.2) to move up and down so that the receiving plate (3.2) has a first position relative to the feeding channel (3.1) and a second position relative to the second pressing seat (1.3) or the third pressing seat (1.4). The receiving plate (3.2) is provided with a second pushing unit (8.2). When the receiving plate (3.2) is in the second position, the second pushing unit (8.2) pushes the bearing into the second pressing seat (1.3) or the third pressing seat (1.4).

4. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The machine (1) is equipped with an installation detection sensor (7.3) for detecting the centrifuge (6).

5. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The transverse module (1.6) includes a movable plate (4.1) disposed on the slider module (1.7) and a transverse unit (4.2) disposed on the movable plate (4.1), and the bearing seat (5) is connected to the moving end of the transverse unit (4.2).

6. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The motor rotor (8) includes a main body (5.1) and a rotating shaft (5.2). The first press-fit seat (1.1), the second press-fit seat (1.3), and the third press-fit seat (1.4) are provided with clearance grooves (5.3) for the rotating shaft (5.2) to be inserted.

7. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 1, characterized in that, The machine base (1) is also provided with a guide seat (5.4). One end of the motor rotor (8) is opposite to the first pressing seat (1.1), and the other end is opposite to the guide seat (5.4). The guide seat (5.4) abuts against the motor rotor (8) to restrict the movement of the bearing seat (5).

8. The single-phase or three-phase centrifuge bearing press-fitting equipment according to claim 5, characterized in that, The transverse unit (4.2) drives the carrier (5) to move so that the carrier (5) has a first position (6.1) and a second position (6.2). When the carrier (5) is in the first position (6.1), the motor rotor (8) is arranged opposite to the first pressing seat (1.1). When the carrier (5) is in the second position (6.2), the motor rotor (8) is arranged opposite to the second pressing seat (1.3) and the third pressing seat (1.4).

9. A single-phase or three-phase centrifuge bearing press-fitting device according to claim 5, characterized in that, A reset spring (7.1) is provided on the machine base (1). One end of the reset spring (7.1) is connected to the machine base (1), and the other end is connected to the moving plate (4.1).

10. A single-phase or three-phase centrifuge bearing press-fitting device according to claim 5, characterized in that, A buffer (7.2) is provided on the machine base (1), and the buffer (7.2) abuts against the moving plate (4.1).

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