Damping motor shaft with stepped structure

Abstract

The utility model relates to the technical field of motors, and discloses a damping motor shaft with a stepped structure, which comprises a first polish rod, second polish rods are arranged at two ends of the first polish rod, third polish rods are arranged at one ends of the two second polish rods, a first connecting rod is arranged at one end of one third polish rod, and a second connecting rod is arranged at one end of the other third polish rod. A first connecting rod is arranged at one end of one polished rod, a second connecting rod is arranged at one end of the other polished rod, annular grooves are formed in the middles of the two polished rods, rubber rings are fixedly connected to the inner walls of the annular grooves, a damping groove is formed in the surface of the second polished rod, and a heat dissipation assembly is installed on the other side of the surface of the second polished rod. According to the utility model, the motor shaft has better damping performance, the shortening of the service life of the internal components of the motor caused by vibration impact is avoided, and the motor shaft is provided with the heat dissipation component, so that the motor performance is prevented from being damaged due to overheating of the motor shaft.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a stepped structure vibration-damping motor shaft. Background Technology

[0002] The motor shaft is a key component used to transmit the rotational motion inside the motor to external mechanical devices. It works by mechanically connecting the motor rotor to the external load, and is usually fixed and supported by bearings.

[0003] A search revealed that Chinese Patent Publication No. CN108087414A discloses a user-friendly motor shaft, but this motor shaft has shortcomings. First, the motor shaft only uses a shock-absorbing disc for vibration damping, which is ineffective and the vibration can impact the internal components of the motor, leading to a shortened service life. Second, the motor shaft lacks a heat dissipation structure, making it prone to overheating and damaging the motor's performance. Therefore, a stepped structure vibration-damping motor shaft is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stepped structure shock-absorbing motor shaft, which aims to improve the poor shock absorption effect and lack of heat dissipation structure of the motor shaft in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stepped structure shock-absorbing motor shaft, including a first guide rod, with guide rods two at both ends of the first guide rod, and guide rods three at one end of each of the two guide rods. One end of one guide rod three is provided with a connecting rod one, and the other end of the other guide rod three is provided with a connecting rod two. An annular groove is formed in the middle of each of the two guide rods three, and a rubber ring is fixedly connected to the inner wall of the annular groove. A shock-absorbing groove is formed on the surface of the guide rod two, and a heat dissipation component is installed on the other side of the surface of the guide rod two.

[0006] As a further description of the above technical solution:

[0007] The heat dissipation assembly includes an annular heat sink and a thermally conductive silicone pad. The thermally conductive silicone pad is fixedly connected to the inner wall of the annular heat sink and is fixedly connected to the surface of the optical rod three.

[0008] As a further description of the above technical solution:

[0009] One end of the connecting rod is fixedly connected to a key bar.

[0010] As a further description of the above technical solution:

[0011] The connecting rod one, the two optical rods one, the two optical rods two, the two optical rods three, and the connecting rod two are an integral structure.

[0012] As a further description of the above technical solution:

[0013] The damping groove is spiral-shaped.

[0014] As a further description of the above technical solution:

[0015] The diameters of the first, second, and third optical rods and the first connecting rod gradually decrease.

[0016] As a further description of the above technical solution:

[0017] The diameter of the second connecting rod is equal to that of the first connecting rod.

[0018] As a further description of the above technical solution:

[0019] The first, second, and third optical rods are all cylindrical.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the diameter of the motor shaft decreases in a stepped manner from the center to both ends, which can buffer vibration at multiple levels. At the same time, a rubber ring is provided at the connection between the motor shaft and the bearing, which can reduce vibration transmission and reduce bearing wear. In addition, a spiral damping groove is provided on the motor shaft, which can absorb vibration. Thus, the motor shaft has better damping performance and avoids the shortening of the service life of the internal components of the motor due to vibration impact.

[0022] 2. In this utility model, by providing thermally conductive silicone pads and annular heat sinks on both sides of the surface of the motor shaft, the thermally conductive silicone pads can improve the heat conduction efficiency, which is conducive to conducting the heat on the surface of the motor shaft to the annular heat sink for dissipation, thus preventing the motor shaft from overheating and damaging the motor performance. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a stepped structure vibration-damping motor shaft proposed in this utility model;

[0024] Figure 2 This is a plan view of a stepped structure vibration damping motor shaft proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of three cross-sections of the smooth rod of a stepped structure vibration-damping motor shaft proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the annular heat sink of a stepped structure damping motor shaft proposed in this utility model.

[0027] Legend:

[0028] 1. Connecting rod one; 2. Smooth rod one; 3. Smooth rod two; 4. Smooth rod three; 5. Connecting rod two; 6. Key bar; 7. Annular groove; 8. Rubber ring; 9. Shock-absorbing groove; 10. Annular heat sink; 11. Thermal conductive silicone pad. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-3 This utility model provides an embodiment of a stepped vibration-damping motor shaft, including a first guide rod 2, with guide rods 3 at both ends of the first guide rod 2, and guide rods 4 at one end of each guide rod 3. One end of one guide rod 4 is connected to a connecting rod 1 for connection to an external mechanical structure, and the other end of the guide rod 4 is connected to a connecting rod 2 5 for connection to an impeller for heat dissipation. An annular groove 7 is formed in the middle of each guide rod 4, and a rubber ring 8 is fixedly connected to the inner wall of the annular groove 7. The rubber ring 8 can reduce vibration transmission and reduce bearing wear. A vibration-damping groove 9 is formed on the surface of the guide rod 2 3 for absorbing vibration. A heat dissipation component is installed on the other side of the surface of the guide rod 2 3 to improve the heat dissipation effect of the motor shaft.

[0031] Reference Figure 4 The heat dissipation component includes an annular heat sink 10 and a thermally conductive silicone pad 11. The thermally conductive silicone pad 11 is fixedly connected to the inner wall of the annular heat sink 10, which can improve the heat conduction efficiency. The thermally conductive silicone pad 11 is fixedly connected to the surface of the light rod 4, which conducts the heat on the surface of the motor shaft to the annular heat sink 10 and dissipates it, thus preventing the motor shaft from overheating and damaging the motor performance.

[0032] Reference Figure 1 One end of the connecting rod 1 is fixedly connected to a key 6, which cooperates with the keyway of the external load or coupling to ensure stable torque transmission.

[0033] Reference Figure 2 Connecting rod 1, two smooth rods 2, two smooth rods 3, two smooth rods 4, and connecting rod 5 are integrated into one structure. The integrated structure of the motor shaft makes the connection strength of each area better and less prone to cracking and damage.

[0034] Reference Figure 1 The damping groove 9 is spiral in shape. The spiral damping groove 9 can undergo slight displacement and deformation during vibration, which can play a role in vibration absorption.

[0035] Reference Figure 2 The diameters of the first two rods, the second two rods, the third two rods, and the connecting rod 1 gradually decrease, and the diameter from the center of the motor shaft to both ends decreases in a stepwise manner. Different diameters allow for buffering at multiple levels when vibration occurs, thereby reducing the vibration transmitted to the bearings and other critical components.

[0036] Reference Figure 2 The diameter of connecting rod 2 5 is equal to that of connecting rod 1. Connecting rod 1 and connecting rod 2 5 are used to connect the external mechanical structure and the impeller, respectively.

[0037] Reference Figure 2 The first, second, and third optical rods are all cylindrical. The cylindrical shape of the optical rods adapts to the connection requirements of different components and provides better fit accuracy and load-bearing capacity.

[0038] Working principle: The diameter of the motor shaft decreases in a stepped manner from the center to both ends. The different diameters allow for buffering at multiple levels when vibration occurs, thereby reducing the vibration transmitted to the bearings and other critical components. A rubber ring 8 is provided at the connection between the motor shaft and the bearing to reduce vibration transmission and bearing wear. The motor shaft also has a spiral damping groove 9, which can undergo slight displacement and deformation during vibration, thus absorbing vibration. This gives the motor shaft excellent damping performance and prevents vibration impact from shortening the service life of the internal components of the motor. By providing thermally conductive silicone pads 11 and annular heat sinks 10 on both sides of the surface of the motor shaft, the thermally conductive silicone pads 11 can improve heat conduction efficiency and facilitate the heat on the surface of the motor shaft to be dissipated onto the annular heat sinks 10, preventing the motor shaft from overheating and damaging the motor performance.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stepped shock absorbing motor shaft comprising a polished rod one (2) characterized by: The both ends of the light rod one (2) are provided with light rod two (3), one end of two light rod two (3) is provided with light rod three (4), one end of one light rod three (4) is provided with connecting rod one (1), one end of another light rod three (4) is provided with connecting rod two (5), the middle part of two light rod three (4) is provided with annular groove (7), the inner wall of annular groove (7) is fixedly connected with rubber ring (8), the surface of light rod two (3) is provided with damping groove (9), the other side of the surface of light rod two (3) is provided with heat dissipation assembly.

2. A stepped damper shaft as claimed in claim 1, wherein: The heat dissipation assembly includes annular fin (10) and heat-conducting silica gel pad (11), the inner wall of annular fin (10) is fixedly connected with heat-conducting silica gel pad (11), and the heat-conducting silica gel pad (11) is fixedly connected to the surface of light rod three (4).

3. A stepped damper shaft as claimed in claim 1, wherein: One end of the connecting rod one (1) is fixedly connected with the key bar (6).

4. A stepped damper shaft as claimed in claim 1, wherein: The connecting rod one (1), two light rod one (2), two light rod two (3), two light rod three (4) and connecting rod two (5) are integrated structure.

5. A stepped damper shaft as claimed in claim 1, wherein: The damping groove (9) is spiral.

6. A stepped damper shaft as claimed in claim 1, wherein: The diameter of the light rod one (2), light rod two (3), light rod three (4) and connecting rod one (1) gradually decreases.

7. A stepped damper shaft as claimed in claim 1, wherein: The diameter of the connecting rod two (5) and the connecting rod one (1) is equal.

8. A stepped damper shaft according to claim 1, wherein: The light rod one (2), light rod two (3) and light rod three (4) are all cylindrical.

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