A slinger structure

CN224730429UActive Publication Date: 2026-09-08CHANGSHA NANCHE ELECTRIC EQUIP CO LTD
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Patent Information

Application Number
CN202521753035.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-08
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

但是该斜面甩油环在将润滑油甩出后,依然存在部分润滑油能够接触到轮芯,且轮芯表面比较光滑,润滑油在其表面会自发铺展,加之轴的旋转,其离心力会加速铺展过程,且向外侧移动,进而扩展到光栅片上,而离心力使润滑油又从光栅片上甩至速度传感器上,导致传感器模块存在故障的隐患

Benefits of technology

通过沿轮芯底部周设甩油环,且甩油环为环状凸起状,该甩油环结构基于尖端曲率效应,液体有集中在甩油环尖端的趋势,配合离心力作用,甩油环能够精准地将润滑油甩出;通过甩油环设置的位置和尺寸,可以精确控制甩油的位置,避免甩出的润滑油无序飞溅,有效减少润滑油甩到光栅片以及传感器模块上的可能性,保证了传感器模块的正常工作性能以及使用寿命,避免传感器模块的数据检测失效或偏差,从而提高了传感器模块的准确性和可靠性。

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Abstract

The utility model discloses a kind of oil throwing ring structures, comprising: main shaft and the wheel core being set on main shaft, wheel core outside is provided with gland;Along the middle part of wheel core is equipped with code disc, code disc top and bottom are separately provided with cushion block;Wheel core side is provided with sensor module;Along the bottom of wheel core is equipped with oil throwing ring.This oil throwing ring structure is based on tip curvature effect, liquid has the tendency of concentrating in oil throwing ring tip, cooperate centrifugal force effect, oil throwing ring can accurately throw lubricating oil;The position and size of the oil throwing ring can be accurately controlled, to avoid the disorder of the lubricating oil splashing, reduce the possibility of lubricating oil thrown to grating piece and sensor module, ensure the normal working performance and service life of sensor module, avoid the data detection failure or deviation of sensor module, so as to improve the accuracy and reliability of sensor module.
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Description

Technical Field

[0001] This utility model belongs to the field of speed sensor technology, specifically an oil-slinging ring structure. Background Technology

[0002] In the field of industrial production and equipment operation, the stable operation of many devices depends on precise sensing and measurement technologies. Among them, the wheel spindle system with encoder and sensor is widely used in various devices that require precise control and monitoring.

[0003] Chinese patent CN222122239U discloses a shaft end sealing structure with an oil slinger ring. By using an inclined oil slinger ring, most of the lubricating oil is thrown back by the inclined surface of the ring when the shaft rotates, preventing it from accumulating at the shaft end and thus preventing oil leakage to some extent. However, after the inclined oil slinger ring throws out the lubricating oil, some oil still comes into contact with the wheel core. Since the wheel core surface is relatively smooth, the lubricating oil spreads spontaneously on its surface. Combined with the rotation of the shaft, the centrifugal force accelerates this spreading process, causing the oil to move outwards and eventually onto the grating plate. The centrifugal force then throws the lubricating oil from the grating plate onto the speed sensor, potentially causing a malfunction in the sensor module.

[0004] Therefore, there is an urgent need for an oil-slinging ring structure to reduce the possibility of lubricating oil being splashed onto the grating plate and sensor module, thereby ensuring the normal operation and service life of the sensor module and avoiding data detection failure or deviation of the sensor module. Utility Model Content

[0005] The purpose of this invention is to provide an oil-slinging ring structure to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An oil-slinging ring structure, comprising: A main shaft and a wheel core mounted on the main shaft, with a pressure cap provided on the outside of the wheel core; A code disk is provided around the center of the wheel core, and pads are provided at the top and bottom of the code disk; A sensor module is provided on one side of the wheel core; An oil slinger ring is provided around the bottom of the wheel core.

[0007] The oil-throwing ring structure according to this utility model has at least the following technical effects: By incorporating an oil-slinging ring along the bottom circumference of the wheel core, and with the ring being a convex ring shape, this oil-slinging ring structure, based on the tip curvature effect, tends to concentrate the liquid at the tip of the oil-slinging ring. Combined with centrifugal force, the oil-slinging ring can precisely throw out the lubricating oil. By controlling the position and size of the oil-slinging ring, the position of the oil being thrown out can be precisely controlled, avoiding disorderly splashing of the thrown lubricating oil. This effectively reduces the possibility of lubricating oil being thrown onto the grating plate and sensor module, ensuring the normal working performance and service life of the sensor module, preventing data detection failure or deviation of the sensor module, thereby improving the accuracy and reliability of the sensor module.

[0008] As a further improvement of this utility model, the oil slinger ring and the wheel core are integrally formed.

[0009] Because the oil slinger ring and the wheel core are integrally molded, the connection strength between them can be effectively improved. This eliminates the connection interface between the oil slinger ring and the wheel core, preventing loosening or displacement that may occur due to weak connections. Furthermore, it improves the concentricity of the oil slinger ring and the wheel core, allowing the oil slinger ring to rotate synchronously and stably with the wheel core. It can withstand greater centrifugal force and mechanical stress, ensuring the overall stability and reliability of the structure, thereby guaranteeing the oil slinging effect.

[0010] As a further embodiment of this utility model: the cross-sectional shape of the oil slinger ring is trapezoidal, and the angle between the hypotenuse of the trapezoid and the bottom of the wheel core is 30°-60°.

[0011] Because the cross-sectional shape of the oil slinger ring is trapezoidal, and the angle between the hypotenuse and the bottom of the wheel core is 30°-60°, the oil slinger ring can better utilize centrifugal force to throw out the lubricating oil, while avoiding the accumulation of lubricating oil on the oil slinger ring. When the wheel core rotates, the lubricating oil flows on the surface of the oil slinger ring. This angle allows the centrifugal force to act more effectively on the lubricating oil, making it easier for it to obtain enough speed and energy to be thrown out of the oil slinger ring. Compared with other shapes or angles, it can significantly improve the efficiency and range of oil slinging, reduce the possibility of lubricating oil being thrown onto the grating plate and sensor module, and ensure the performance and lifespan of the sensor module.

[0012] As a further improvement of this utility model, the outer edge of the oil slinger ring is evenly provided with several raised serrations.

[0013] As a further embodiment of this utility model: the height of the saw teeth is 2mm-5mm, and the spacing between adjacent saw teeth is 4mm-6mm.

[0014] By uniformly setting several raised serrations on the outer edge of the oil slinger ring, with a serration height of 2mm-5mm and a spacing of 4mm-6mm between adjacent serrations, when lubricating oil is thrown to the outer edge of the oil slinger ring, the lubricating oil is divided into smaller oil droplets during the collision with the serrations. This allows the raised serrations to disperse the lubricating oil, making it easier to throw out, greatly improving the efficiency of oil throwing, avoiding the concentration of lubricating oil in a certain area on the oil slinger ring, and ensuring the uniformity of lubricating oil throwing.

[0015] As a further improvement of this utility model, a centering sleeve is provided between the main shaft and the wheel core.

[0016] By setting a centering sleeve between the main shaft and the wheel core, the centering sleeve can provide precise coaxial positioning for the main shaft and the wheel core. During the assembly process, it can ensure that the alignment of the main shaft and the wheel core is within a very small error range, so that the wheel core can rotate smoothly around the main shaft, which can effectively improve the overall performance and assembly accuracy of the equipment.

[0017] As a further improvement of this utility model, the pad is made of rubber.

[0018] As a further improvement of this utility model, the Shore hardness of the pad is 40HA-60HA.

[0019] Because the pad is made of rubber with a Shore hardness of 40HA-60HA, it can effectively absorb and buffer vibration energy. When vibration is transmitted to the pad, the pad will undergo elastic deformation, converting the vibration energy into heat energy and dissipating it. This reduces the vibration amplitude transmitted to the code disk, lowers the risk of the code disk being damaged by vibration, and extends the service life of the code disk.

[0020] As a further improvement of this utility model, a retaining ring is provided at the end of the main shaft.

[0021] By setting a retaining ring at the end of the spindle, axial movement of the spindle can be effectively prevented, allowing power to be transmitted more smoothly from the drive end to the load end, reducing the eccentricity when the spindle rotates, improving the power transmission efficiency of the equipment, and thus enhancing the overall performance and transmission accuracy of the equipment. Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of an existing oil-throwing ring structure and oil-throwing path; Figure 2 This is a schematic diagram of an oil-throwing ring structure and an oil-throwing path according to the present invention.

[0024] Figure label: 1. Main shaft; 2. Wheel core; 3. Pressure cap; 4. Code disk; 5. Pad block; 6. Sensor module; 7. Oil slinger ring; 8. Centering sleeve. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] like Figure 1 As shown, an existing oil-slinging ring structure includes a main shaft 1, a wheel core 2, and a sensor module 6. The bottom edge of the wheel core 2 is provided with multiple right angles or bevels, and the wheel core material is aluminum alloy with an anodized surface, which is relatively smooth. After the lubricating oil comes into contact with the metal surface of the wheel core 2, it will spread spontaneously. With the rotation of the shaft, the centrifugal force will accelerate the spreading process and move it outward, thus extending it to the grating plate. The centrifugal force causes the lubricating oil to be thrown out of the grating plate and onto the sensor module 6, which affects the performance of the sensor.

[0032] like Figure 2 As shown, the present invention provides an oil-slinging ring structure, comprising: a main shaft 1 and a wheel core 2 disposed on the main shaft 1, the wheel core 2 having a pressure cap 3 disposed on the outside; a code disk 4 disposed around the middle of the wheel core 2, with pads 5 disposed at the top and bottom of the code disk 4 respectively; a sensor module 6 disposed on one side of the wheel core 2; and an oil-slinging ring 7 disposed around the bottom of the wheel core 2, the oil-slinging ring 7 being an annular protrusion.

[0033] Specifically, by providing an oil-slinging ring 7 around the bottom of the wheel core 2, and the oil-slinging ring 7 being a ring-shaped protrusion, this oil-slinging ring structure is based on the tip curvature effect, where the liquid tends to concentrate at the tip of the oil-slinging ring 7. Combined with the centrifugal force, the oil-slinging ring 7 can accurately throw out the lubricating oil. By setting the position and size of the oil-slinging ring 7, the position and angle of the oil slinging can be precisely controlled, avoiding disorderly splashing of the thrown lubricating oil, effectively reducing the possibility of lubricating oil being thrown onto the grating plate and sensor module 6, ensuring the normal working performance and service life of sensor module 6, avoiding data detection failure or deviation of sensor module 6, thereby improving the accuracy and reliability of sensor module 6.

[0034] Furthermore, such as Figure 2 As shown, the oil slinger ring 7 and the wheel core 2 are integrally formed.

[0035] Specifically, since the oil slinger ring 7 and the wheel core 2 are integrally formed, the connection strength between the oil slinger ring 7 and the wheel core 2 can be effectively improved, so that there is no connection interface between the oil slinger ring 7 and the wheel core 2, avoiding loosening or displacement that may occur due to weak connection. It can also improve the concentricity of the oil slinger ring 7 and the wheel core 2, so that the oil slinger ring 7 can rotate synchronously and stably with the wheel core 2, and can withstand large centrifugal force and mechanical stress, ensuring the overall stability and reliability of the structure, thereby ensuring the oil slinging effect.

[0036] Furthermore, the cross-sectional shape of the oil slinger ring 7 is trapezoidal, and the angle between the hypotenuse of the trapezoid and the bottom of the wheel core 2 is 30°-60°.

[0037] Specifically, because the cross-sectional shape of the oil slinger ring 7 is trapezoidal, and the angle between the hypotenuse of the trapezoid and the bottom of the wheel core 2 is 30°-60°, the oil slinger ring 7 can better utilize centrifugal force to throw out the lubricating oil, while avoiding the accumulation of lubricating oil on the oil slinger ring 7. When the wheel core 2 rotates, the lubricating oil flows on the surface of the oil slinger ring 7. This angle allows the centrifugal force to act more effectively on the lubricating oil, making it easier for it to obtain enough speed and energy to be thrown out of the oil slinger ring 7. Compared with other shapes or angles, it can significantly improve the efficiency and range of oil throwing, reduce the possibility of lubricating oil being thrown onto the grating plate and sensor module 6, and ensure the performance and lifespan of sensor module 6.

[0038] Furthermore, the outer edge of the oil slinger ring 7 is evenly provided with several raised serrations, and the height of the serrations is 2mm-5mm, and the spacing between adjacent serrations is 4mm-6mm.

[0039] Specifically, by uniformly setting several raised serrations on the outer edge of the oil slinger ring 7, with a serration height of 2mm-5mm and a spacing of 4mm-6mm between adjacent serrations, when the lubricating oil is thrown to the outer edge of the oil slinger ring 7, the lubricating oil will be divided into smaller oil droplets during the collision with the serrations. This allows the raised serrations to disperse the lubricating oil, making it easier for the lubricating oil to be thrown out, greatly improving the efficiency of oil throwing, avoiding the lubricating oil from concentrating in a certain area on the oil slinger ring 7, and ensuring the uniformity of lubricating oil throwing.

[0040] like Figure 1 As shown, a centering sleeve 8 is provided between the main shaft 1 and the wheel core 2.

[0041] Specifically, by setting a centering sleeve 8 between the main shaft 1 and the wheel core 2, the centering sleeve 8 can provide precise coaxial positioning for the main shaft 1 and the wheel core 2. During the assembly process, it can ensure that the overlap of the axes of the main shaft 1 and the wheel core 2 is within a very small error range, so that the wheel core 2 can rotate smoothly around the main shaft 1, which can effectively improve the overall performance and assembly accuracy of the equipment.

[0042] According to an embodiment of the present invention, the pad 5 is made of rubber, and the Shore hardness of the pad 5 is 40HA-60HA.

[0043] Specifically, since the pad 5 is made of rubber and has a Shore hardness of 40HA-60HA, it can effectively absorb and buffer vibration energy. When vibration is transmitted to the pad, the pad 5 will undergo elastic deformation, converting the vibration energy into heat energy and dissipating it. This reduces the vibration amplitude transmitted to the code disk 4, lowers the risk of the code disk 4 being damaged by vibration, and extends the service life of the code disk 4.

[0044] It should also be noted that a retaining ring is provided at the end of spindle 1.

[0045] Specifically, by setting a retaining ring at the end of the spindle 1, axial movement of the spindle 1 can be effectively prevented, allowing power to be transmitted more smoothly from the drive end to the load end, reducing the eccentricity of the spindle 1 during rotation, improving the power transmission efficiency of the equipment, and thus enhancing the overall performance and transmission accuracy of the equipment.

[0046] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An oil-slinging ring structure, characterized in that, include: A main shaft (1) and a wheel core (2) disposed on the main shaft (1), wherein a pressure cap (3) is disposed on the outside of the wheel core (2); A code disk (4) is provided around the middle part of the wheel core (2), and pads (5) are provided at the top and bottom of the code disk (4); A sensor module (6) is provided on one side of the wheel core (2); An oil-slinging ring (7) is provided around the bottom of the wheel core (2), and the oil-slinging ring (7) is a ring-shaped protrusion.

2. The oil-slinging ring structure according to claim 1, characterized in that, The oil-slinging ring (7) and the wheel core (2) are integrally formed.

3. The oil-slinging ring structure according to claim 2, characterized in that, The cross-sectional shape of the oil slinger ring (7) is trapezoidal, and the angle between the hypotenuse of the trapezoid and the bottom of the wheel core (2) is 30°-60°.

4. The oil-slinging ring structure according to claim 3, characterized in that, The outer edge of the oil-slinging ring (7) is uniformly provided with several raised serrations.

5. The oil-slinging ring structure according to claim 4, characterized in that, The height of the saw teeth is 2mm-5mm, and the spacing between adjacent saw teeth is 4mm-6mm.

6. The oil-slinging ring structure according to claim 1, characterized in that, A centering sleeve (8) is provided between the main shaft (1) and the wheel core (2).

7. The oil-slinging ring structure according to claim 1, characterized in that, The pad (5) is made of rubber.

8. The oil-slinging ring structure according to claim 7, characterized in that, The Shore hardness of the pad (5) is 40HA-60HA.

9. The oil-slinging ring structure according to any one of claims 1 to 8, characterized in that, A retaining ring is provided at the end of the main shaft (1).

Citation Information

Patent Citations

  • Shaft end sealing structure with oil slinger

    CN222122239U