Anti-vibration three-phase asynchronous motor
By setting up a connecting flange at the connection between the motor head and the fuselage and installing buffer foot pads and buffer bearings at the bottom of the motor head, the problems of vibration and noise of the three-phase asynchronous motor are solved, achieving better stability and noise reduction effects.
Patent Information
- Application Number
- CN202421972160.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The existing three-phase asynchronous motors vibrate greatly during operation, have poor stability, and are prone to noise.
A connecting flange is installed at the connection between the motor head and the fuselage, and a buffer foot pad and a buffer bearing are installed at the bottom of the motor head to form a stable overall structure to reduce vibration conduction.
Through improved structural design, motor vibration is reduced, stability is improved and operating noise is reduced.
Smart Images
Figure CN223141705U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motors, and particularly relates to an anti-vibration three-phase asynchronous motor. Background Art
[0002] A three-phase asynchronous motor is a kind of induction motor, which is a type of motor powered by simultaneously connecting to a 380V three-phase alternating current power supply. Since the rotor of the three-phase asynchronous motor rotates in the same direction as the stator rotating magnetic field but at a different speed, there is a slip rate, so it is called a three-phase asynchronous motor. The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor winding generates electromotive force and current due to the relative motion with the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion.
[0003] Under the existing technology, most three-phase asynchronous motors install the stator-rotor assembly in the machine shell, and both ends are sealed and fixed by end covers, and a base is provided under the machine shell. However, this structure has problems such as large vibration of the motor during operation, poor operation stability, and easy generation of noise. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an anti-vibration three-phase asynchronous motor for the above problems existing in the prior art.
[0005] The purpose of the utility model can be achieved by the following technical solutions: An anti-vibration three-phase asynchronous motor includes a motor head and a motor body. A motor shaft passes through the centers of the motor head and the motor body and extends out of the motor head. At the connection between the motor head and the motor body, a connecting flange is integrally formed on the front side of the motor body. A plurality of mounting screw holes are circumferentially opened on the outer side wall of the motor head at the front end of the connecting flange. Fixing bolts extend from the rear side of the motor body into the mounting screw holes from back to front to connect and fix the motor head and the motor body; A head base is integrally formed at the bottom of the motor head, and base mounting holes are respectively opened at the four corners of the head base, and buffer foot pads are fitted and installed in the base mounting holes.
[0006] In the above anti-vibration three-phase asynchronous motor, a buffer bearing is sleeved on the motor shaft inside the motor head.
[0007] In the above anti-vibration three-phase asynchronous motor, an integral transition structure is formed on both sides between the motor head and the head base, so that the overall motor head presents a stable structure with a smaller upper part and a larger lower part.
[0008] Compared with the prior art, for the end - cover sealing of a vibration - proof three - phase asynchronous motor provided by the present utility model, the head structure of the motor is adjusted and changed. By setting buffer bearings, buffer foot pads and an integrated head base, the stability of the motor is better, the motor vibration is reduced, and the working noise is lowered. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic structural diagram of the vibration - proof three - phase asynchronous motor;
[0010] In the above figures, 100, motor head; 110, motor shaft; 111, buffer bearing; 120, connecting flange; 121, mounting screw hole; 122, fixing bolt; 130, head base; 131, transition structure; 132, base mounting hole; 133, buffer foot pad; 200, motor body. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] The following are specific embodiments of the present utility model in combination with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.
[0012] As Figure 1 shown, the vibration - proof three - phase asynchronous motor includes a motor head 100 and a motor body 200. A motor shaft 110 passes through the centers of the motor head 100 and the motor body 200 and extends out of the motor head 100. Inside the motor head 100, a buffer bearing 111 is sleeved on the motor shaft 110. The buffer bearing 111 is used to buffer the vibration during the operation of the motor shaft 110 and prevent the motor shaft 110 from transmitting the vibration to the shell of the motor head 100.
[0013] At the connection between the motor head 100 and the motor body 200, a connecting flange 120 is integrally formed on the front side of the motor body 200. On the front end of the connecting flange 120, a plurality of mounting screw holes 121 are circumferentially opened on the outer side wall of the motor head 100. Fixing bolts 122 extend from the rear side of the motor body 200 from back to front into the mounting screw holes 121 to connect and fix the motor head 100 and the motor body 200 to each other. The outer diameter of the connecting flange 120 is larger than the outer diameter of the motor head 100. The fixing method from back to front can leave enough space for the screwdriver to turn when installing the fixing bolts 122, which is convenient for the installation and disassembly of the motor head 100 and the motor body 200 and facilitates the subsequent maintenance and detection of the motor.
[0014] At the bottom of the motor head 100, a head base 130 is integrally formed therewith. An integrally transitional structure 131 is formed on both sides between the motor head 100 and the head base 130, making the overall motor head 100 present a stable structure with a smaller upper part and a larger lower part, thereby avoiding vibrations caused by unstable motor center of gravity. Base mounting holes 132 are respectively formed at the four corners of the head base 130. A buffer foot pad 133 is fitted and installed in the base mounting hole 132. The buffer foot pad 133 can conduct the vibrations generated during motor operation, thereby reducing vibrations and ensuring the stability of motor operation.
[0015] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0016] Although various terms are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.
Claims
1. A vibration-proof three-phase asynchronous motor, comprising a motor head (100) and a motor body (200), a motor shaft (110) passing through the centers of the motor head (100) and the motor body (200) and extending out of the motor head (100) outward, characterized in that, The connection between the motor head (100) and the motor body (200) is integrally formed with a connecting flange (120) on the front side of the motor body (200). A number of mounting screw holes (121) are circumferentially formed at the front end of the connecting flange (120) on the outer side wall of the motor head (100). The fixing bolts (122) extend from the rear side of the motor body (200) into the mounting screw holes (121) from back to front to connect and fix the motor head (100) and the motor body (200); A head base (130) is integrally formed at the bottom of the motor head (100). Base mounting holes (132) are respectively formed at the four corners of the head base (130), and buffer foot pads (133) are fitted and installed in the base mounting holes (132).
2. The anti-vibration three-phase asynchronous motor according to claim 1, characterized in that, A buffer bearing (111) is sleeved on the motor shaft (110) inside the motor head (100).
3. A vibration-proof three-phase asynchronous motor according to claim 1, characterized in that, An integral transition structure (131) is formed on both sides between the motor head (100) and the head base (130), making the overall motor head (100) present a stable structure with a smaller upper part and a larger lower part.