A high-speed motor rotor mounting structure

Abstract

The present invention relates to a high-speed motor rotor mounting structure, comprising a rotor body, wherein the rotor body comprises an iron core, a winding is provided on the outside of the iron core, and a bearing is mounted on one end of the iron core, a circular groove is provided through the iron core, a round rod is inserted through the circular groove, the rotor body is mounted in a stator, a bearing groove is provided in the stator, and the bearing is slidably inserted in the bearing groove. The present invention mounts the round rod in the iron core of the rotor body, and during installation, first inserts one end of the round rod into the round rod positioning groove, then aligns the circular groove of the iron core with the round rod, and inserts the round rod into the circular groove. Under the guidance of the round rod, the rotor body is pushed to enter the stator, thereby preventing the rotor body from shaking when entering the stator. Moreover, due to the guidance of the round rod, the round rod plays a supporting role when the rotor body is inserted into the stator. After the rotor body is installed, the round rod is removed, effectively preventing the winding from being damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor rotors, and in particular relates to a high-speed motor rotor mounting structure. Background Art

[0002] In the prior art, when installing the rotor of a small generator, the operator needs to manually insert the rotor into the stator. However, when placing the rotor into the stator, factors such as the rotor shaking make it difficult to align the bearing into the bearing slot, which increases the difficulty of installation. In addition, because the gap between the stator and the rotor is very small, the support force on the rotor is very small during installation. When the rotor shakes, it is easy to collide with the stator, causing damage to the rotor. High-speed motors have high requirements for the dynamic balancing accuracy of the rotor. Slight damage to the rotor will destroy the dynamic balancing accuracy and affect the assembly quality of the high-speed motor. Summary of the Invention

[0003] The present invention provides a high-speed motor rotor mounting structure to solve the defects of the prior art.

[0004] In order to solve the above technical problems, the present invention provides a high-speed motor rotor structure and installation method, including a rotor body, the rotor body including an iron core, a winding is provided on the outside of the iron core, and a bearing is installed at one end of the iron core, a circular groove is provided through the iron core, a round rod is inserted through the circular groove, the rotor body is installed in the stator, a bearing groove is provided in the stator, the bearing is slidably inserted in the bearing groove, the inner wall of the bearing groove is provided with a round rod positioning groove, and one end of the round rod is inserted in the round rod positioning groove.

[0005] Beneficial effects: The present invention installs a round rod in the iron core of the rotor body. During installation, one end of the round rod is first inserted into the round rod positioning groove, and then the round groove of the iron core is aligned with the round rod, and the round rod is inserted into the round groove. Under the guidance of the round rod, the rotor body is pushed to enter the stator, preventing the rotor body from shaking when entering the stator. In addition, due to the guidance of the round rod, the rotor body plays a supporting role when being sent into the stator, which is convenient and labor-saving and effectively prevents the winding from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the present invention;

[0007] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0008] In the figure: 1 rotor body, 2 iron core, 3 winding, 4 bearing, 5 round groove, 6 round rod, 7 stator, 8 bearing groove, 9 round rod positioning groove, 10 internal thread, 11 external thread, 12 oil ring, 13 oil plug. DETAILED DESCRIPTION

[0009] In order to make the purpose, content and advantages of the present invention more clear, the specific embodiments of the present invention are further described in detail below.

[0010] The present invention proposes a high-speed motor rotor mounting structure, including a rotor body 1, the rotor body 1 includes an iron core 2, a winding 3 is provided on the outside of the iron core 2, and a bearing 4 is installed at one end of the iron core 2. Different from the prior art, the iron core 2 is provided with a circular groove 5, and a round rod 6 is inserted into the circular groove 5. The rotor body 1 is installed in the stator 7, and a bearing groove 8 is provided in the stator 7. The bearing 4 is slidably inserted into the bearing groove 8. The inner wall of the bearing groove 8 is provided with a round rod positioning groove 9, and one end of the round rod 6 is inserted into the round rod positioning groove 9. During installation, one end of the round rod 6 is first inserted into the round rod positioning groove 9, and then the circular groove 5 of the iron core 2 is aligned with the round rod 6, so that the round rod 6 is inserted into the circular groove 5. Under the guidance of the round rod 6, the rotor body 1 is pushed to enter the stator 7 to prevent the rotor body 1 from shaking when entering the stator 7. Moreover, because of the guidance of the round rod 6, it plays a supporting role when the rotor body 1 is sent into the stator 7, which is convenient and labor-saving and effectively prevents damage to the winding. After the rotor body 1 is installed, the round rod 6 is taken out.

[0011] In order to achieve stable installation of the round rod 6, the inner wall of the round rod positioning groove 9 is provided with an internal thread 10, and one end of the round rod 6 is provided with an external thread 11, and the round rod 6 and the round rod positioning groove 11 are threadedly connected through the external thread 10 and the internal thread 11. One end of the round rod 6 is inserted into the round rod positioning groove 11, and the round rod 6 and the round rod positioning groove 11 are threadedly connected to facilitate fixing the round rod 6. After installing the rotor body 1, rotate the round rod 6 in the opposite direction to take it out.

[0012] The diameter of the round rod 6 is consistent with the inner diameter of the circular groove 5, and the circular groove 5 and the iron core 2 are coaxially arranged.

[0013] The two ends of the round rod 6 are embedded with oil rings 12, and the iron core 2 is provided with an oil filling hole, which is connected to the circular groove 5, and the oil filling hole is provided with an oil plug 13. After the round rod 6 is installed, the iron core 2 is put on the round rod 6, and lubricating oil is injected into the circular groove 5 through the oil filling hole. When the round rod 6 is taken out, it plays a lubricating role.

[0014] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-speed motor rotor mounting structure, comprising a rotor body (1), wherein the rotor body (1) comprises an iron core (2), a winding (3) is provided on the outside of the iron core (2), and a bearing (4) is mounted on one end of the iron core (2), characterized in that: A circular groove (5) is provided axially through the center of the iron core (2), and a round rod (6) is detachably inserted into the circular groove (5); The rotor body (1) is installed in a stator (7), a bearing groove (8) is provided in the stator (7), and the bearing (4) is slidably inserted into the bearing groove (8); The inner wall of the bearing groove (8) is provided with a round rod positioning groove (9), and one end of the round rod (6) is inserted into the round rod positioning groove (9) to guide the axial movement of the rotor body (1) and to center the rotor and stator during the installation process.

2. The high-speed motor rotor mounting structure according to claim 1, characterized in that: The inner wall of the round rod positioning groove (9) is provided with an internal thread (10), one end of the round rod (6) is provided with an external thread (11), and the round rod (6) and the round rod positioning groove (9) are fixed by threaded connection.

3. The high-speed motor rotor mounting structure according to claim 1, characterized in that: The diameter of the round rod (6) is consistent with the inner diameter of the circular groove (5), and the circular groove (5) and the iron core (2) are coaxially arranged.

4. The high-speed motor rotor mounting structure according to claim 1, characterized in that: Oil rings (12) are sleeved on both ends of the round rod (6), and an oil filling hole communicating with the circular groove (5) is provided on the iron core (2), and an oil plug (13) is provided on the oil filling hole.

5. A method for installing a high-speed motor rotor using the high-speed motor rotor installation structure according to any one of claims 1 to 4, characterized in that: The following steps are involved: Inserting and fixing one end of the round rod (6) into the round rod positioning groove (9) provided on the inner wall of the bearing groove (8) of the stator (7); Align the circular groove (5) of the rotor body (1) with the round rod (6), and insert the round rod (6) into the circular groove (5); Push the rotor body (1) axially along the round rod (6), and under the guidance and support of the round rod (6), slide the bearing (4) into the bearing groove (8), so that the rotor body (1) accurately enters the installation position in the stator (7); After the installation is completed, the round rod (6) is taken out from the round rod positioning groove (9) and the round groove (5).

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