An assembly device for synchronous motor bearings
By using a three-jaw chuck and a limit ring, and employing a hydraulic telescopic rod and an electromagnet, the coaxial pressing of the synchronous motor bearings is achieved, solving the problems of bearing assembly deviation and safety, and improving assembly quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINSHENG MASCH IND TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-07
Smart Images

Figure CN224464096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing installation technology, and in particular to an assembly device for synchronous motor bearings. Background Technology
[0002] In the fields of machinery manufacturing and industrial production, synchronous motors are key power equipment, and their performance stability and reliability directly affect the operating efficiency of the entire production system. Bearings, as one of the core components of synchronous motors, are of paramount importance in their assembly quality with the shaft.
[0003] Currently, traditional bearing assembly devices, such as the utility model patent with publication number CN218947558U, have many drawbacks in the assembly process.
[0004] On the one hand, it is difficult to ensure that the bearing is horizontal in the early stage of the assembly process, and the bearing is very prone to misalignment. This can easily lead to bearing damage or instability after assembly when pressure is applied later.
[0005] On the other hand, the device has poor safety. If the user misoperates during material handling or loading, causing the pressurized part to shift downward, it can easily cause injury to the user. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an assembly device for synchronous motor bearings. In practical use, this device can facilitate the coaxial assembly of the bearing and the shaft, while ensuring that the bearing and the shaft are perpendicular, thus facilitating positioning and effectively improving actual safety.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An assembly device for a synchronous motor bearing includes a support platform, a three-jaw chuck mounted on the upper end of the support platform, a connecting frame fixedly connected to the upper end of the support platform, a horizontal mounting plate fixedly connected to the connecting frame, a hydraulic telescopic rod mounted on the upper end of the horizontal mounting plate, the telescopic end of the hydraulic telescopic rod penetrating the horizontal mounting plate and fixedly connected to a pressure cylinder; and a positioning mechanism, the positioning mechanism including a limiting ring fixedly connected to the lower end of the pressure cylinder, and a ring electromagnet embedded in the lower end of the pressure cylinder.
[0009] Preferably, the lower end of the support platform is fixedly connected with multiple support legs.
[0010] Preferably, a U-shaped enclosure is fixedly connected to the upper end of the support platform.
[0011] Preferably, two first control switches and two second control switches are fixedly connected to the front side of the support platform.
[0012] Preferably, the two first control switches jointly control the extension of the hydraulic telescopic rod, and the two second control switches jointly control the retraction of the hydraulic telescopic rod.
[0013] Preferably, the central axis of the pressure cylinder coincides with the central axis of the three-jaw chuck.
[0014] Compared with the prior art, the advantages of this utility model are as follows:
[0015] 1. The three-jaw chuck firmly clamps the shaft to be assembled, ensuring operational stability; the limit ring and the annular electromagnet work together to firmly attract and limit the bearing, keeping it in a horizontal position to prevent it from shifting or falling off, significantly improving the accuracy and stability of bearing assembly.
[0016] 2. The central axis of the pressure cylinder coincides with the central axis of the three-jaw chuck, which can accurately press the bearing onto the shaft, ensure assembly coaxiality, improve assembly quality, reduce equipment malfunctions caused by assembly deviations, and extend equipment service life.
[0017] 3. It adopts two non-locking press-type first and second control switches. The extension or retraction operation requires continuous pressing with both hands, which effectively avoids misoperation, prevents injury to the user when extending, and improves the safety of operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the assembly device for a synchronous motor bearing proposed in this utility model.
[0019] Figure 2 for Figure 1 A bottom view;
[0020] Figure 3 for Figure 2 Enlarged view of point A.
[0021] In the diagram: 1 Support platform, 2 Connecting frame, 3 Mounting plate, 4 Hydraulic telescopic rod, 5 U-shaped enclosure, 6 Three-jaw chuck, 7 Pressure cylinder, 8 First control switch, 9 Second control switch, 10 Limit ring, 11 Ring electromagnet, 12 Support foot. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-3An assembly device for a synchronous motor bearing includes a support platform 1, a plurality of support feet 12 fixedly connected to the lower end of the support platform 1, a U-shaped enclosure 5 fixedly connected to the upper end of the support platform 1, a three-jaw chuck 6 installed on the upper end of the support platform 1, a connecting frame 2 fixedly connected to the upper end of the support platform 1, a horizontal mounting plate 3 fixedly connected to the connecting frame 2, a hydraulic telescopic rod 4 installed on the upper end of the horizontal mounting plate 3, the telescopic end of the hydraulic telescopic rod 4 passing through the horizontal mounting plate 3 and fixedly connected to a pressure cylinder 7, the central axis of the pressure cylinder 7 coinciding with the central axis of the three-jaw chuck 6;
[0024] The system also includes a positioning mechanism, which consists of a limiting ring 10 fixedly connected to the lower end of the pressure cylinder 7. A ring electromagnet 11 is embedded in the lower end of the pressure cylinder 7. It is important to note that the control switch and power supply of the ring electromagnet 11 are located on the pressure cylinder 7. The extension and retraction ends of the pressure cylinder 7 and the hydraulic telescopic rod 4 are detachably installed to facilitate replacement and adapt to different types of bearings. During installation, the shaft to be assembled is first connected to the three-jaw chuck 6, and then the bearing is limited to the inner side of the limiting ring 10 by the ring electromagnet 11. The limiting ring 10 plays a positioning role.
[0025] The support platform 1 has two first control switches 8 and two second control switches 9 fixedly connected to its front side. The two first control switches 8 jointly control the extension of the hydraulic telescopic rod 4, and the two second control switches 9 jointly control the retraction of the hydraulic telescopic rod 4. That is, the hydraulic telescopic rod 4 adopts a two-way hydraulic rod design and is equipped with two independent solenoid valves. Specifically, the two first control switches 8 individually control the solenoid valve at the extension port, and the two second control switches 9 individually control the solenoid valve at the retraction port.
[0026] In this invention, the shaft to be assembled is installed on the three-jaw chuck 6, which can firmly clamp the shaft and ensure its stability during operation. The bearing is placed inside the limiting ring 10 at the lower end of the pressure cylinder 7. At the same time, the annular electromagnet 11 is turned on (the control switch and power supply of the annular electromagnet 11 are both located on the pressure cylinder 7). The annular electromagnet 11 generates magnetic force to firmly attract and limit the bearing, preventing the bearing from shifting or falling off during assembly, thus improving the accuracy and stability of assembly.
[0027] Operate the two first control switches 8. At this time, the hydraulic telescopic rod 4 extends, driving the pressure cylinder 7 to move downward. The central axis of the pressure cylinder 7 coincides with the central axis of the three-jaw chuck 6, which allows the pressure cylinder 7 to accurately press the bearing onto the shaft, ensuring the coaxiality of the assembly, improving the assembly quality, reducing equipment malfunctions caused by assembly deviations, and extending the service life of the equipment.
[0028] After the bearing is pressed into place, turn off the annular electromagnet 11 and operate the two second control switches 9 to retract the hydraulic telescopic rod 4, which drives the pressure cylinder 7 to move upward back to the initial position. Remove the assembled shaft and bearing assembly to complete one bearing assembly operation. The extension or retraction is completed by pressing the two first control switches 8 and the two second control switches 9, both of which are non-locking push switches. Therefore, it is necessary to press the switch with both hands to complete the extension or retraction. This effectively avoids accidental operation that could cause injury to the user during extension.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An assembly device for a synchronous motor bearing, characterized in that, include: A support platform (1) is provided with a three-jaw chuck (6) installed at the upper end of the support platform (1). A connecting frame (2) is fixedly connected to the upper end of the support platform (1). A horizontal mounting plate (3) is fixedly connected to the connecting frame (2). A hydraulic telescopic rod (4) is installed at the upper end of the horizontal mounting plate (3). The telescopic end of the hydraulic telescopic rod (4) passes through the horizontal mounting plate (3) and is fixedly connected to a pressure cylinder (7). The positioning mechanism includes a limiting ring (10) fixedly connected to the lower end of the pressure cylinder (7), and an annular electromagnet (11) is embedded in the lower end of the pressure cylinder (7).
2. The assembly device for a synchronous motor bearing according to claim 1, characterized in that, The lower end of the support platform (1) is fixedly connected to multiple support feet (12).
3. The assembly device for a synchronous motor bearing according to claim 1, characterized in that, The upper end of the support platform (1) is fixedly connected to a U-shaped enclosure (5).
4. The assembly device for a synchronous motor bearing according to claim 1, characterized in that, The front side of the support platform (1) is fixedly connected to two first control switches (8) and two second control switches (9).
5. The assembly device for a synchronous motor bearing according to claim 4, characterized in that, The two first control switches (8) jointly control the extension of the hydraulic telescopic rod (4), and the two second control switches (9) jointly control the retraction of the hydraulic telescopic rod (4).
6. The assembly device for a synchronous motor bearing according to claim 1, characterized in that, The central axis of the pressure cylinder (7) coincides with the central axis of the three-jaw chuck (6).