Double oil seal grinding motor for preventing glass dust abrasion

Abstract

The utility model relates to motor field. A kind of double oil seal grinding motor of preventing glass dust abrasion, including motor main body, motor main body includes motor shaft, end cover, the upper portion inboard of end cover is equipped with first step, and first step is equipped with first oil seal, the lower portion inboard of end cover is equipped with second step, and second step is opened with second oil seal;The inner side wall of end cover is equipped with the oil reservoir with opening inwards, and the oil reservoir is located between first oil seal and second oil seal.The utility model is through the combination structure of double oil seal+oil reservoir, and the oil seal and shaft abrasion problem caused by glass dust in glass deep processing industry is solved specifically to grinding motor, prolongs motor service life, and reduces equipment maintenance frequency.

Description

Technical Field

[0001] This utility model relates to the field of motors, specifically to grinding motors. Background Technology

[0002] In the glass deep processing industry, grinding motors are the core equipment in glass grinding, operating for extended periods in an environment mixed with glass dust and water. Glass dust is extremely hard, and during motor operation, it easily adheres to the motor shaft surface along with moisture. When the shaft contacts the oil seal, the adhered glass dust acts like an abrasive, accelerating wear between the oil seal and the shaft. This can lead to oil seal failure, motor oil leakage, and even shaft damage, severely impacting the motor's lifespan and equipment operational stability, increasing maintenance costs and downtime.

[0003] Existing motors typically employ a single oil seal structure, which relies solely on a single oil seal for sealing. This makes it difficult to prevent the intrusion of glass dust and fails to address the wear and tear on the oil seal and shaft caused by dust. Therefore, there is an urgent need for a wear-resistant sealing structure that can adapt to the unique environment of the glass deep processing industry. Utility Model Content

[0004] The purpose of this invention is to provide a double-oil-sealed grinding motor that prevents glass dust abrasion, in order to solve the above-mentioned technical problems.

[0005] A double-oil-seal grinding motor for preventing glass dust abrasion includes a motor body, the motor body including a motor shaft and an end cover, characterized in that a first step is provided on the upper inner side of the end cover, and a first oil seal is provided at the first step; a second step is provided on the lower inner side of the end cover, and a second oil seal is provided at the second step; an oil storage groove with an inward opening is provided on the inner wall of the end cover, the oil storage groove being located between the first oil seal and the second oil seal.

[0006] Preferably, the top of the end cap is provided with an upwardly extending first protrusion, the first protrusion forming a first step on the side near the motor shaft, and the first protrusion forming a third step on the side away from the motor shaft; the width of the first step is greater than the width of the third step, and the depth of the first step is greater than the depth of the third step.

[0007] Preferably, the motor body further includes a grinding wheel seat, the bottom of which is provided with a second protrusion and a third protrusion extending downward. The second protrusion is located above the third step, and the length of the third protrusion is greater than the length of the second protrusion. The outer wall of the end cover is provided with a first annular protrusion protruding outward, and the third protrusion extends along the outer wall of the end cover to above the first annular protrusion.

[0008] Preferably, the width of the second step is not less than the width of the first step, and the depth of the second step is not less than the depth of the first step.

[0009] Preferably, the outer side wall of the end cap is provided with a first annular protrusion and a second annular protrusion protruding outward, the second annular protrusion is located below the first annular protrusion, a gap is provided between the second annular protrusion and the first annular protrusion, the top surface of the second oil seal is not higher than the bottom surface of the first annular protrusion, and the bottom surface of the second oil seal is not higher than the top surface of the second annular protrusion.

[0010] Preferably, there are at least two oil storage tanks, each arranged circumferentially along the inner wall of the end cap, forming an annular groove structure.

[0011] Preferably, the depth of the oil storage tank is 1.3mm-1.7mm.

[0012] Preferably, the lips of both the first oil seal and the second oil seal face downwards.

[0013] Preferably, the motor body further includes a grinding wheel holder, with the top of the first oil seal located below the bottom of the grinding wheel holder.

[0014] Preferably, the first oil seal has an upward-facing annular groove at a position opposite to the grinding wheel seat, and the annular groove is filled with lubricating oil.

[0015] Beneficial Effects: This utility model, through a combination structure of double oil seals and an oil reservoir, specifically addresses the problem of oil seal and shaft wear in grinding motors caused by glass dust in the glass deep processing industry, extending motor lifespan and reducing equipment maintenance frequency. This utility model has a simple structure, achieved by adding oil seals and an oil reservoir to existing end caps, resulting in low modification costs, good adaptability, and suitability for upgrading grinding motors in the glass deep processing industry. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of the middle structure at the end cap. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] Reference Figure 1 and Figure 2 A double-oil-sealed grinding motor for preventing glass dust abrasion includes a motor body, which includes a motor shaft 1, an end cover 2, a grinding wheel seat 3, etc.

[0020] The upper inner side of the end cover 2 is provided with a first step, and a first oil seal 4 is provided at the first step. The lower inner side of the end cover 2 is provided with a second step, and a second oil seal 5 is provided at the second step. The first oil seal 4 mainly prevents glass dust and moisture from entering, while the second oil seal 5 further strengthens the seal, significantly improving the anti-intrusion effect and preventing leakage of lubricating oil inside the motor.

[0021] The top of the end cap 2 has an upwardly extending first protrusion 6. The side of the first protrusion 6 closest to the motor shaft 1 forms a first step, and the side of the first protrusion 6 furthest from the motor shaft 1 forms a third step. The bottom of the grinding wheel holder 3 has a downwardly extending second protrusion 7 and a third protrusion 8. The second protrusion 7 is located above the third step, and the length of the third protrusion 8 is greater than the length of the second protrusion 7. The outer wall of the end cap 2 has an outwardly protruding first annular protrusion 9, and the third protrusion 8 extends along the outer wall of the end cap 2 above the first annular protrusion 9. This forms a trough-like structure, thereby increasing the difficulty of glass dust and moisture intrusion.

[0022] The width of the first step is greater than the width of the third step. This ensures the area of ​​the first oil seal 4, thereby guaranteeing the oil seal effect. The depth of the first step is greater than the depth of the third step. This utilizes the third step to increase the support strength of the first protrusion 6, thus providing stable support for the first oil seal 4.

[0023] The width of the second step is not less than the width of the first step, and the depth of the second step is not less than the depth of the first step. This ensures the area of ​​the second oil seal 5, thereby improving the oil seal effect.

[0024] Preferably, the outer wall of the end cap 2 is provided with an outwardly protruding second annular protrusion 11, which is located below the first annular protrusion 9. A gap is provided between the second annular protrusion 11 and the first annular protrusion 9. The top surface of the second oil seal 5 is not higher than the bottom surface of the first annular protrusion 9, and the bottom surface of the second oil seal 5 is not higher than the top surface of the second annular protrusion 11. Thus, the second annular protrusion 11 is used to ensure the support strength of the end cap 2 for the second oil seal 5.

[0025] An oil reservoir 10 with an inward opening is provided on the inner wall of the end cover 2. The oil reservoir 10 is located between the first oil seal 4 and the second oil seal 5. The oil reservoir 10 is filled with grease. The grease forms an oil film in contact with the surface of the motor shaft 1, which can enhance the sealing performance and prevent external glass dust and impurities from entering the motor. Figure 1In the design, there are two oil reservoirs 10, which are arranged circumferentially along the inner wall of the end cover 2, forming an annular groove structure. When the motor is running, the rotation of the motor shaft 1 drives the lubricating grease to form an oil film. This oil film covers the surface of the motor shaft 1, reducing friction between the external and internal oil seals and the motor shaft 1. Furthermore, the grease's viscosity prevents glass dust from entering. Even if a small amount of dust breaks through the first oil seal 4, it will be absorbed by the grease in the oil reservoir 10, preventing it from contacting the core mating surface between the second oil seal 5 and the motor shaft 1, thus avoiding wear. The cross-section of the oil reservoir 10 is preferably arc-shaped to improve the uniformity of lithium-based grease filling. The oil reservoir 10 is filled with lithium-based grease, thereby improving its wear resistance and dust resistance. The oil reservoir 10 ensures that the lubricating grease is continuously replenished to the surface of the motor shaft 1. The formed oil film not only reduces friction between the oil seal and the shaft but also absorbs some of the intruding glass dust using the grease's viscosity, preventing dust from directly contacting the oil seal and the shaft, thus reducing wear. There are at least two oil storage tanks 10, and the oil storage tanks 10 are preferably evenly spaced. The depth of the oil storage tanks 10 is 1.3mm-1.7mm, preferably 1.5mm.

[0026] Yes, the lip of the first oil seal 4 can face upwards and the lip of the second oil seal 5 can face downwards, thus increasing support by using a step. Alternatively, both the lips of the first oil seal 4 and the second oil seal 5 can face downwards. When the lip of the first oil seal faces downwards, preferably, the top of the first oil seal 4 is located below the bottom of the grinding wheel holder 3. This further increases the difficulty of glass dust and moisture intrusion. An annular groove with an upward opening can be provided at the position opposite to the first oil seal 4 and the grinding wheel holder 3. The annular groove is filled with lubricating oil, thereby reducing the friction intensity between the first oil seal 4 and the grinding wheel holder 3. In this invention, the annular groove is opened on the top of the first oil seal 4, rather than on the bottom of the grinding wheel holder 3, which avoids the need to modify the grinding wheel holder 3, thus allowing the product to be matched with the existing grinding wheel holder 3, thereby improving the product's compatibility.

[0027] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A double-oil-sealed grinding motor for preventing glass dust abrasion, comprising a motor body, the motor body including a motor shaft and an end cover, characterized in that, The upper inner side of the end cap is provided with a first step, and a first oil seal is provided at the first step. The lower inner side of the end cap is provided with a second step, and a second oil seal is provided at the second step. An oil storage groove with an inward opening is provided on the inner wall of the end cap, and the oil storage groove is located between the first oil seal and the second oil seal.

2. The double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 1, characterized in that, The top of the end cap is provided with an upwardly extending first protrusion, a first step is formed on the side of the first protrusion near the motor shaft, and a third step is formed on the side of the first protrusion away from the motor shaft; the width of the first step is greater than the width of the third step, and the depth of the first step is greater than the depth of the third step.

3. A double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 2, characterized in that, The motor body also includes a grinding wheel seat. The bottom of the grinding wheel seat is provided with a second protrusion and a third protrusion extending downward. The second protrusion is located above the third step. The length of the third protrusion is greater than the length of the second protrusion. The outer wall of the end cover is provided with a first annular protrusion protruding outward. The third protrusion extends along the outer wall of the end cover to above the first annular protrusion.

4. A double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 1, characterized in that, The width of the second step is not less than the width of the first step, and the depth of the second step is not less than the depth of the first step.

5. A double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 4, characterized in that, The outer side wall of the end cap is provided with a first annular protrusion and a second annular protrusion protruding outward. The second annular protrusion is located below the first annular protrusion. There is a gap between the second annular protrusion and the first annular protrusion. The top surface of the second oil seal is not higher than the bottom surface of the first annular protrusion, and the bottom surface of the second oil seal is not higher than the top surface of the second annular protrusion.

6. A double-oil-sealed grinding motor for preventing glass dust abrasion according to any one of claims 1-5, characterized in that, There are at least two oil storage tanks, each arranged circumferentially along the inner wall of the end cap, forming an annular groove structure.

7. A double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 6, characterized in that, The depth of the oil storage tank is 1.3mm-1.7mm.

8. A double-oil-sealed grinding motor for preventing glass dust abrasion according to any one of claims 1-5, characterized in that, The lips of both the first oil seal and the second oil seal face downwards.

9. A double-oil-sealed grinding motor for preventing glass dust abrasion according to claim 8, characterized in that, The motor body also includes a grinding wheel holder, with the top of the first oil seal located below the bottom of the grinding wheel holder.

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