Long-shaft motor assembly

Abstract

The utility model discloses a long shaft motor assembly which comprises a shell, a first motor unit and a second motor unit are arranged in the shell, a main shaft is arranged between the first motor unit and the second motor unit in a penetrating mode, and a reinforcing sleeve is arranged in the middle of the main shaft. The reinforcing sleeve comprises a cylindrical sleeve body, an annular first reinforcing ring is arranged on the end face of one side of the sleeve body, an annular second reinforcing ring is arranged on the end face of the other side of the sleeve body, the first reinforcing ring abuts against a first rotor end plate of the first motor unit, and the second reinforcing ring abuts against a second rotor end plate of the second motor unit. When the main shaft rotates at a high speed, due to the strengthening effect of the strengthening sleeve, the stability of high-speed rotation of the main shaft is effectively improved, the risk that a motor stator and a rotor are burnt due to chamber sweeping caused by poor deflection of the rotor is reduced, the shaking of the main shaft is effectively reduced, the overall working noise of the motor is effectively reduced, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to an electric motor, or more precisely, a long-shaft motor assembly. Background Technology

[0002] In certain applications, long-shaft motors are required. Typically, due to their longer spindles, these long-shaft motors require improvements in vibration and noise during high-speed rotation. Utility Model Content

[0003] Therefore, it is necessary to provide a long-shaft motor assembly to address the aforementioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A long-shaft motor assembly, characterized in that the long-shaft motor assembly includes a housing, a first motor unit and a second motor unit are provided inside the housing, a main shaft passes through the first motor unit and the second motor unit, and a reinforcing sleeve is provided in the middle of the main shaft.

[0006] In a preferred embodiment of the present invention, the reinforcing sleeve includes a cylindrical sleeve body. A first reinforcing ring is provided on one side end face of the sleeve body, and a second reinforcing ring is provided on the other side end face of the sleeve body. The first reinforcing ring abuts against the first rotor end plate of the first motor unit, and the second reinforcing ring abuts against the second rotor end plate of the second motor unit.

[0007] In a preferred embodiment of this utility model, the sleeve body is interference-fitted with the main shaft.

[0008] In a preferred embodiment of this utility model, the reinforcing sleeve is integrally formed by casting.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This utility model provides a long-shaft motor assembly. When the main shaft rotates at high speed, the strengthening effect of the reinforcing sleeve effectively improves the stability of the main shaft's high-speed rotation, reduces the risk of the motor stator and rotor burning out due to insufficient rotor deflection, effectively reduces the vibration of the main shaft, and effectively reduces the overall operating noise of the motor. It is highly practical. Attached Figure Description

[0011] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the long-shaft motor assembly of this utility model;

[0013] Figure 2 for Figure 1 A cross-sectional view of the long-shaft motor assembly along line AA;

[0014] Figure 3 for Figure 2 A three-dimensional structural diagram of the reinforcing sleeve of the long-shaft motor assembly in the middle;

[0015] Figure 4 for Figure 3 A three-dimensional structural diagram of the reinforcing sleeve, shown from another perspective;

[0016] Figure 5 for Figure 4 A cross-sectional view of the reinforcing sleeve along line BB in the middle;

[0017] The markings in the diagram are explained as follows: 1. Housing; 2. First motor unit; 21. First rotor end plate; 3. Second motor unit; 31. Second rotor end plate; 4. Main shaft; 5. Reinforcing sleeve; 51. Sleeve body; 52. First reinforcing ring; 53. Second reinforcing ring. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1 and Figure 2 As shown, the long-shaft motor assembly includes a housing 1, inside which a first motor unit 2 and a second motor unit 3 are provided. A main shaft 4 passes through between the first motor unit 2 and the second motor unit 3, and a reinforcing sleeve 5 is provided in the middle of the main shaft 4.

[0020] like Figures 3 to 5As shown, the reinforcing sleeve 5 includes a cylindrical sleeve body 51. A first reinforcing ring 52 is provided on one side end face of the sleeve body 51, and a second reinforcing ring 53 is provided on the other side end face of the sleeve body 51. The first reinforcing ring 52 abuts against the first rotor end plate 21 of the first motor unit 2, and the second reinforcing ring 53 abuts against the second rotor end plate 31 of the second motor unit 3.

[0021] It should be noted that the sleeve body 51 is interference-fitted with the main shaft 4.

[0022] In addition, the reinforcing sleeve 5 is integrally cast.

[0023] The working principle of this long-shaft motor assembly is explained below.

[0024] First, the main shaft 4 is connected to the sleeve body 51 of the reinforcing sleeve 5 by interference fit. Then, the first motor unit 2 and the second motor unit 3 are installed, such that the first reinforcing ring 52 abuts against the first rotor end plate 21 of the first motor unit 2, and the second reinforcing ring 53 abuts against the second rotor end plate 31 of the second motor unit 3.

[0025] When the main shaft 4 rotates at high speed, the strengthening effect of the reinforcing sleeve 5 effectively improves the stability of the main shaft's high-speed rotation, reduces the risk of the motor stator and rotor burning out due to insufficient rotor deflection, effectively reduces the vibration of the main shaft, and effectively reduces the overall operating noise of the motor, making it highly practical.

[0026] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. A long-shaft motor assembly, characterized in that, The long-shaft motor assembly includes a housing (1), in which a first motor unit (2) and a second motor unit (3) are provided. A main shaft (4) passes through the first motor unit (2) and the second motor unit (3), and a reinforcing sleeve (5) is provided in the middle of the main shaft (4).

2. The long-shaft motor assembly according to claim 1, characterized in that, The reinforcing sleeve (5) includes a cylindrical sleeve body (51). A first reinforcing ring (52) is provided on one side end face of the sleeve body (51), and a second reinforcing ring (53) is provided on the other side end face of the sleeve body (51). The first reinforcing ring (52) abuts against the first rotor end plate (21) of the first motor unit (2), and the second reinforcing ring (53) abuts against the second rotor end plate (31) of the second motor unit (3).

3. The long-shaft motor assembly according to claim 2, characterized in that, The sleeve body (51) is interference-fitted with the main shaft (4).

4. The long-shaft motor assembly according to claim 1, characterized in that, The reinforcing sleeve (5) is integrally cast.

Images