Motor damper spring strip

Abstract

The utility model discloses a motor damper spring strip, the side surface of the motor damper spring strip is provided with a plurality of elastic structures, the elastic structures form concave parts on one side surface of the spring strip, and the elastic structures form convex parts corresponding to the concave parts on the other opposite side surface of the spring strip. The protruding part has elastic force which elastically deforms in the direction perpendicular to the side face of the motor damper spring strip. The motor damper spring strip can buffer the vibration of the rotating shaft of the motor, reduce the noise and effectively prolong the service life of the motor.

Description

Technical Field

[0001] The utility model relates to an elastic buffer, in particular to a motor vibration reduction spring strip. Background Art

[0002] The rotating shaft of the existing motor is installed in the housing through a bearing. Specifically, the rotating shaft is sleeved with the inner ring of the bearing, and the outer ring of the bearing is arranged on the bearing seat of the housing, so as to realize the rotation of the rotating shaft. However, since the rotor and the rotating shaft will generate radial vibrations during the rotation of the motor, these vibrations will not only cause high-frequency collisions between the outer ring and the inner ring of the bearing, and between the outer ring of the bearing and the inner wall of the housing, so these collisions will directly damage the parts, and at the same time, the collisions will cause noise in the parts, thereby making the use effect of the motor poor and greatly shortening the service life of the motor. Utility Model Content

[0003] The utility model aims to provide a motor vibration-damping spring strip which can buffer the vibration of a rotating shaft of a motor, reduce noise, and effectively extend the service life of the motor.

[0004] In order to achieve the above-mentioned purpose, the side surface of the motor vibration damping spring strip provided by the utility model has multiple elastic structures, and the elastic structure forms a recessed portion on one side surface of the spring strip, and the elastic structure forms a protruding portion corresponding to the recessed portion on the other opposite side surface of the spring strip, and the protruding portion has an elastic force that elastically deforms along a direction perpendicular to the side surface of the motor vibration damping spring strip.

[0005] Compared with the prior art, the utility model forms a recessed portion on one side of the motor damping spring bar and a protruding portion on the other side, so that the elastic structure has elastic force. When it is installed outside the motor bearing, it can buffer the gap between the bearing and the motor bracket, thereby effectively reducing the impact between the bearing and the motor bracket, reducing the noise of the motor, and is conducive to protecting the bearing and extending the service life of the motor. In addition, the structure of the motor damping spring bar is very simple, and the space occupied is small, making the motor structure more compact and smaller.

[0006] Preferably, the motor damping spring strips can be close to each other end to end to form an annular ring.

[0007] Specifically, the elastic structures are arranged in an array, so as to prevent the loss of elastic force due to the crushing of individual protrusions, thereby improving the elastic stability of the motor damping spring strip.

[0008] Specifically, the spacing between two adjacent rows of the elastic structures is equal to the spacing between two adjacent elastic structures in the same row.

[0009] Preferably, the edge of the motor damping spring strip is provided with a stopper, and the stopper is bent relative to the side of the spring strip. In this way, the stopper can be clamped on the end surface of the outer ring of the motor bearing. Therefore, by providing the stopper, the motor damping spring strip can be prevented from accidentally detaching from the outer ring of the bearing due to vibration, thereby ensuring the stability of the buffer and extending the service life of the motor.

[0010] Preferably, the cross-sections of the recessed portion and the protruding portion are square structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic diagram of the vibration-reducing and noise-reducing motor of the utility model.

[0012] Figure 2 It is a stereoscopic diagram of the internal structure of the vibration-reducing and noise-reducing motor of the utility model.

[0013] Figure 3 It is an exploded view of the internal structure of the vibration and noise reduction motor of the utility model.

[0014] Figure 4 It is an axial cross-sectional view of the internal structure of the vibration reduction and noise reduction motor of the utility model.

[0015] Figure 5 It is a structural diagram of the motor vibration-damping spring strip of the utility model.

[0016] Figure 6 It is a cross-sectional view of the motor vibration-damping spring strip of the utility model.

[0017] Figure 7 It is a structural diagram of the motor vibration reduction spring strip of the utility model wrapped in an annular ring.

[0018] Figure 8 It is a side view of the motor vibration-damping spring strip of the utility model wrapped into an annular ring. DETAILED DESCRIPTION

[0019] In order to explain the technical content, structural features and effects achieved by the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0020] like Figures 1 to 4As shown, the motor vibration damping spring strip of the utility model is applied to a vibration damping and noise reduction motor 100, and the vibration damping and noise reduction motor 100 includes a bracket 1, a stator 2, a rotor 3, a pair of bearings 4 and a pair of motor vibration damping spring strips 5. The stator 2 is fixed in the bracket 1, and the rotor 3 has a rotating shaft 31. The rotating shaft 31 passes through both ends of the rotor 3, and the two ends of the rotating shaft 31 are respectively sleeved and fixed on the inner ring of the bearing 4. The outer ring of the bearing 4 is arranged on the bracket 1, and the motor vibration damping spring strip 5 is close to each other at the head and tail and forms an annular ring around the central axis of the bearing 4 and is sleeved between the outer ring of the bearing 4 and the bracket 1 to radially buffer the bearing 4.

[0021] Please see again Figure 1 , Figure 3 and Figure 4 The bracket 1 includes a housing 11, a front frame 12 and a rear frame 13. The front frame 12 is arranged at one end of the housing 11, and the rear frame 13 is arranged at the other end of the housing 11. The front frame 12 and the rear frame 13 are respectively provided with bearing seats 121 and 131. The bearing 4 and the motor damping spring bar 5 are respectively arranged in the bearing seats 121 and 131; specifically, the motor damping spring bar 5 is sleeved between the outer ring of the bearing 4 and the inner wall surface of the bearing seats 121 and 131. By arranging the front frame 12 and the rear frame 13 to be detachable, the stator 2 and the rotor 3 can be installed from the end of the housing 11 to the inside, and finally installed on the housing 11 through the front frame 12 and the rear frame 13, so that the stator 2 and the rotor 3 can be axially positioned, thereby improving the convenience of assembly and making the maintenance of the motor simpler and more convenient. More specifically, the front frame body 12 and the rear frame body 13 extend connecting parts 122 and 132 toward the housing 11, respectively, and the front frame body 12 and the rear frame body 13 are fixedly connected to each other. A through hole 133 is provided at the connecting part of one of the front frame body 12 and the rear frame body 13, and a threaded hole 123 is provided at the connecting part of the other. The front frame body 12 and the rear frame body 13 are detachably connected by screws or bolts 14, and the screws or bolts 14 pass through the through hole 133 and are threadedly connected to the threaded hole 123. In this way, the assembly of the front frame body 12 and the rear frame body 13 can be more convenient and quick.

[0022] See also Figures 5 to 8, an elastic structure 51 is provided on the side of the motor damping spring strip 5, and the elastic structure 51 elastically contacts the outer ring of the bearing 4. By utilizing the radial elastic force of the elastic structure 51, the elastic structure 51 can buffer the space between the bearing 4 and the bracket 1, thereby effectively reducing the impact between the bearing 4 and the bracket 1, which is beneficial to protecting the bearing 4 and extending the service life. The spacing between two adjacent rows of the elastic structures 51 is equal to the spacing between two adjacent elastic structures 51 in the same row. Specifically, the elastic structure 51 forms a square recessed portion 511 on the outer side of the motor damping spring strip 5, and the elastic structure 51 forms a square protruding portion 512 on the inner side of the motor damping spring strip 5 corresponding to the recessed portion 511, and the protruding portion 512 has an elastic force to elastically deform in a direction perpendicular to the inner side of the spring strip 5, and the protruding portion 512 elastically contacts the outer ring of the bearing 4. By setting the elastic structure 51 to be concave on one side and convex on the other side, the convex part 512 can be elastically deformed toward the side of the concave part 511, so that the motor damping spring strip 5 has radial elastic force after forming an annular ring, and realizes circumferential buffering of the bearing 4. The structure is simple and the occupied volume is small, making the structure of the motor more compact. The elastic structure 51 is arranged in an array. In this way, it can prevent the loss of elastic force due to the crushing of individual convex parts 512, and improve the elastic stability of the motor damping spring strip 5.

[0023] See also Figure 7 and Figure 8 The edge of the motor damping spring strip 5 is provided with a stopper 52, and the stopper 52 is evenly distributed around the central axis of the annular ring. The stopper 52 can be bent relative to the motor damping spring strip 5 and clamped on the end surface of the outer ring of the bearing 4. The setting of the stopper 52 can prevent the motor damping spring strip 5 from accidentally detaching from the outer ring of the bearing 4 due to vibration, thereby ensuring the stability of the buffer and extending the service life of the motor.

[0024] Compared with the prior art, the utility model sleeves and fixes the two ends of the rotating shaft 31 to the inner ring of the bearing 4, and sets a motor damping spring strip 5 between the outer ring of the bearing 4 and the bracket 1, so that the motor damping spring strip 5 forms an annular ring around the central axis of the bearing 4 and sleeves on the outer ring of the bearing 4. Since the motor damping spring strip 5 has radial elastic force, buffering can be achieved between the outer ring of the bearing 4 and the bracket 1, thereby reducing the impact of the rotating shaft 31 and the bearing 4 on the bracket 1, effectively reducing the noise of the motor; and effectively reducing the collision between the bearing 4 and the bracket 1, thereby protecting the bearing 4, thereby extending the service life of the motor. In addition, setting the motor damping spring strip 5 between the outer ring of the bearing 4 and the bracket 1 can reduce the occupied volume, making the motor structure more compact and smaller.

[0025] The structures of the rotor 3 and the stator 2 involved in the vibration and noise reduction motor 100 of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0026] The above disclosure is only a preferred example of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A motor damping spring strip, characterized in that: The side surface of the motor damping spring strip has a plurality of elastic structures, wherein the elastic structure forms a recessed portion on one side surface of the spring strip, and the elastic structure forms a protruding portion corresponding to the recessed portion on the other opposite side surface of the spring strip, wherein the protruding portion has an elastic force for elastic deformation in a direction perpendicular to the side surface of the spring strip.

2. The motor damping spring strip according to claim 1, characterized in that: The motor damping spring strips can be close to each other end to end to form an annular ring.

3. The motor damping spring strip according to claim 1, characterized in that: The elastic structures are arranged in an array.

4. The motor damping spring strip according to claim 3, characterized in that: The spacing between two adjacent rows of the elastic structures is equal to the spacing between two adjacent elastic structures in the same row.

5. The motor damping spring strip according to claim 1, characterized in that: A limiting piece is provided at the edge of the motor vibration damping spring strip, and the limiting piece is bent relative to the side surface of the motor vibration damping spring strip.

6. The motor damping spring strip according to claim 1, characterized in that: The cross sections of the concave portion and the convex portion are square structures.

Images