High balance low noise fan bearing

CN224770672UActive Publication Date: 2026-09-18NINGBO YOUHE BEARING CO LTD
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Patent Information

Application Number
CN202522594378.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-09-18
Estimated Expiration
2035-12-08

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种高平衡度低噪音风扇轴承,以解决上述背景技术提出的现有的风扇轴承内部不具备自动润油机构,使得需要人工添加润油物质,延长轴承使用寿命,其次,风扇轴承转动间隙噪音较大,使得使用效率降低,最后,风扇轴承不具备防护机构,使得轴承内部容易堆积部分杂质,造成轴承损坏的问题

Benefits of technology

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the high-balance low-noise fan bearing facilitates the lubrication of the fan bearing interior, thereby extending its service life; facilitates the noise reduction treatment of the fan bearing; and facilitates the dust prevention treatment of the fan bearing, preventing dust from accumulating inside the bearing.

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Abstract

This utility model relates to the field of fan bearing technology, specifically disclosing a high-balance, low-noise fan bearing, comprising: a bearing inner ring for installation, an oil collection groove fixedly disposed inside the bearing inner ring, and a second steel ball disposed at the left end of the bearing inner ring; further comprising: a lubrication mechanism disposed on the oil collection groove, wherein the lubrication mechanism includes a plug, a sliding rod, a first spring, and an oil outlet, the rear end of the oil collection groove is connected to the plug, the front end of the plug is provided with the sliding rod, and the rear end of the sliding rod is provided with the first spring, and the left side of the oil collection groove is provided with the oil outlet; the second steel ball, and a low-noise mechanism is disposed on the outer side of the second steel ball. This high-balance, low-noise fan bearing facilitates lubrication of the fan bearing interior, thereby extending its service life, facilitates noise reduction treatment of the fan bearing, and facilitates dust prevention treatment of the fan bearing, preventing dust accumulation inside the bearing.
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Description

Technical Field

[0001] This utility model relates to the field of fan bearing technology, specifically a high-balance, low-noise fan bearing. Background Technology

[0002] When a fan rotates at high speed, the bearing generates significant noise. Existing fan bearings have a simple internal structure, which fails to reduce this noise, thus decreasing the fan's efficiency. Furthermore, existing bearings lack a lubrication mechanism, requiring manual addition of grease to extend their lifespan, further reducing efficiency. Additionally, the lack of a dustproof mechanism prevents impurities from accumulating inside the bearing, affecting its rotation. Therefore, a high-balance, low-noise fan bearing has been designed to address these issues.

[0003] A noise-reducing bearing, authorized by publication number CN222650384U, includes: an inner ring; an outer ring; a cage disposed between the inner and outer rings; and a plurality of rolling elements arranged around the cage. The inner ring has a groove; the cage is frustoconical and adapted to the groove; the rolling elements are flush with the cage and have a sloping cross-section in the radial direction; the inner ring, cage, and rolling elements are arranged in two sets, symmetrically about the bearing center. This invention has the following advantages: this low-noise bearing can reduce noise and improve axial load bearing capacity.

[0004] Based on existing solutions and actual production and processing, current high-balance, low-noise fan bearings still have some problems: First, existing fan bearings do not have an automatic lubrication mechanism, requiring manual addition of lubricating substances to extend bearing life; second, the fan bearing rotation clearance noise is relatively large, reducing efficiency; and finally, the fan bearing lacks a protective mechanism, making it easy for impurities to accumulate inside, causing bearing damage. Therefore, this utility model provides a high-balance, low-noise fan bearing to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-balance, low-noise fan bearing to solve the problems mentioned in the background art, such as the lack of an automatic lubrication mechanism in existing fan bearings, which requires manual addition of lubricating substances to extend the bearing's service life; the large noise from the fan bearing's rotational clearance, which reduces its efficiency; and the lack of a protective mechanism, which makes it easy for impurities to accumulate inside the bearing and cause damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-balance, low-noise fan bearing, comprising: a bearing inner ring for installation, an oil collection groove fixedly disposed inside the bearing inner ring, and a second steel ball disposed at the left end of the bearing inner ring;

[0007] It also includes: a lubrication mechanism is provided on the oil collection tank, wherein the lubrication mechanism includes a rubber plug, a sliding rod, a first spring and an oil outlet, the rear end of the oil collection tank is connected to a rubber plug, the front end of the rubber plug is provided with a sliding rod, the rear end of the sliding rod is provided with a first spring, and the left side of the oil collection tank is provided with an oil outlet.

[0008] The second steel ball has a low-noise mechanism on its outer side, which includes a bearing ring and a third steel ball. The bearing ring is connected to the outer side of the second steel ball, and the third steel ball is connected to the outer side of the bearing ring.

[0009] Preferably, the sliding rod forms a sliding structure inside the inner ring of the bearing, and the outer side of the sliding rod is in contact with the first spring.

[0010] Preferably, a first steel ball is provided inside the oil outlet, and the outer side of the first steel ball is in a close fit with the second steel ball, and the second steel ball is arranged at an equal angle on the outer side of the inner ring of the bearing.

[0011] Preferably, the bearing ring forms a sliding structure on the outside of the second steel ball, and the outside of the bearing ring is in contact with the third steel ball, with the third steel ball being set at an equal angle on the outside of the bearing ring.

[0012] Preferably, the front and rear ends of the bearing ring are connected to baffles, and the baffles are provided with a second spring and a locking rod inside, with the locking rod symmetrically arranged about the center line of the second spring.

[0013] Preferably, the locking rod forms a sliding structure inside the baffle, and the locking rod is connected to the locking groove ring by a locking method, wherein the locking groove ring is fixedly disposed on the inner wall of the bearing inner ring and the bearing outer ring.

[0014] Preferably, the inner wall of the bearing outer ring is fitted with the third steel ball, and an oil collection groove is provided inside the bearing outer ring.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the high-balance low-noise fan bearing facilitates the lubrication of the fan bearing interior, thereby extending its service life; facilitates the noise reduction treatment of the fan bearing; and facilitates the dust prevention treatment of the fan bearing, preventing dust from accumulating inside the bearing.

[0016] 1. Equipped with an oil collection groove, a sliding rod, and a first steel ball, when the bearing needs lubrication to extend its service life, as the inner and outer rings of the bearing begin to rotate, the second and third steel balls inside rotate within them. During rotation, the friction between the second and third steel balls and the first steel ball guides the lubricating oil from the oil collection groove through the oil outlet, allowing the surfaces of the second and third steel balls to contact the lubricating oil and achieve smooth sliding on the outside of the bearing rings. Simultaneously, when lubricating oil needs to be added to the oil collection groove, the lubrication device connector is inserted into the rear end of the inner ring and the third steel ball, causing the sliding rod to slide forward and compress the first spring, thereby disengaging the piston and continuously squeezing lubricating oil inward. Through the connecting path of the sliding rod, the lubricating oil is delivered into the interior of the oil collection groove, facilitating lubrication of the fan bearing and extending its service life.

[0017] 2. It is equipped with a second steel ball, a bearing ring, and a third steel ball. In order to reduce the noise of the fan bearing, the second steel ball is evenly spaced on the outer side of the inner ring of the bearing. The second steel ball slides in the inner wall groove of the bearing ring. At the same time, the outer groove of the bearing ring is connected to the third steel ball. The third steel ball is set at an equal angle on the outer side of the bearing ring. Through the connection of the bearing ring, the second and third steel balls are assisted to rotate, thereby reducing the noise of the rotation of the inner and outer rings of the bearing, which facilitates the noise reduction treatment of the fan bearing.

[0018] 3. Equipped with a baffle, a locking rod, and a retaining ring, when dust protection of the fan bearing is required, the baffle is installed at the front and rear ends of the connection between the inner and outer rings of the bearing. The locking rod itself compresses the second spring, keeping it in a contracted state. When the baffle drives the locking rod to be parallel with the retaining ring, the locking rod is released. The second spring, through its elasticity, drives the locking rod to engage inside the retaining ring, thus stably installing the baffle. The second spring itself has strong elasticity, which enables the baffle to be stably installed, thereby preventing dust from entering the bearing and facilitating dust protection treatment of the fan bearing, preventing dust from accumulating inside the bearing. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention from the left side.

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] Figure 3 This is a top view sectional structural diagram of the present invention;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the overall structure connecting the sliding rod and the first spring of this utility model;

[0025] Figure 6 This is a schematic diagram of the overall structure of the bearing inner ring and bearing ring connection of this utility model.

[0026] In the diagram: 1. Inner bearing ring; 2. Oil collection groove; 3. Plug; 4. Sliding rod; 5. First spring; 6. Oil outlet; 7. First steel ball; 8. Second steel ball; 9. Bearing ring; 10. Third steel ball; 11. Baffle; 12. Second spring; 13. Locking rod; 14. Locking ring; 15. Outer bearing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figures 1-6 The present invention provides the following technical solution:

[0029] A high-balance, low-noise fan bearing includes: an inner bearing ring 1, an oil collection groove 2, a plug 3, a sliding rod 4, a first spring 5, an oil outlet 6, a first steel ball 7, a second steel ball 8, a bearing ring 9, a third steel ball 10, a baffle 11, a second spring 12, a locking rod 13, a locking ring 14, and an outer bearing ring 15.

[0030] When using high-balance, low-noise fan bearings, for example, with... Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5As shown, a stopper 3 is connected to the rear end of the oil collection groove 2. A sliding rod 4 is provided at the front end of the stopper 3, and a first spring 5 is provided on the outer side of the rear end of the sliding rod 4. An oil outlet 6 is provided on the left side of the oil collection groove 2. A first steel ball 7 is provided inside the oil outlet 6. The outer side of the first steel ball 7 is in contact with a second steel ball 8. The second steel ball 8 is set at an equal angle on the outer side of the inner bearing ring 1. A bearing ring 9 forms a sliding structure on the outer side of the second steel ball 8. The outer side of the bearing ring 9 is in contact with a third steel ball 10. The third steel ball 10 is set at an equal angle on the outer side of the bearing ring 9. A retaining ring 14 is fixedly provided on the inner wall of the inner bearing ring 1 and the outer bearing ring 15. The inner wall of the outer bearing ring 15 is in contact with the third steel ball 10. An oil collection groove 2 is provided inside the outer bearing ring 15. First, the lubricating oil device connector is inserted into the rear end of the inner bearing ring 1 and the third steel ball 10, so that the sliding rod 4 slides forward and squeezes the first spring 5, thereby causing the stopper 3 to disengage. Lubricating oil is continuously squeezed inward and delivered into the oil collection groove 2 through the connection path of the sliding rod 4. At this time, when the inner ring 1 and the outer ring 15 of the bearing begin to rotate, the second steel ball 8 and the third steel ball 10 respectively set inside rotate in their respective interiors. When the second steel ball 8 and the third steel ball 10 rotate, they make friction contact with the first steel ball 7 and guide the lubricating oil in the oil collection groove 2 through the oil outlet 6, so that the surfaces of the second steel ball 8 and the third steel ball 10 come into contact with the lubricating oil. The second steel ball 8 is set at equal intervals on the outer side of the inner ring 1 of the bearing, and the second steel ball 8 slides in the inner wall groove of the bearing ring 9. At the same time, the outer groove of the bearing ring 9 is connected to the third steel ball 10. The third steel ball 10 is set at equal angles on the outer side of the bearing ring 9. Through the connection of the bearing ring 9, the second steel ball 8 and the third steel ball 10 are assisted to rotate, thereby reducing the noise of the rotation of the inner ring 1 and the outer ring 15 of the bearing. This is the usage method of the high balance low noise fan bearing.

[0031] When performing dustproofing treatment on the fan bearing, for example, by attaching... Figure 1 Appendix Figure 3 and attached Figure 6 As shown, the locking rod 13 forms a sliding structure inside the baffle 11. The locking rod 13 is connected to the retaining ring 14 by a locking method. The baffle 11 is installed at the front and rear ends of the connection between the inner ring 1 and the outer ring 15 of the bearing. The locking rod 13 is in a contracted state by squeezing the second spring 12. When the baffle 11 drives the locking rod 13 to be parallel with the retaining ring 14, the locking rod 13 is released. The second spring 12 drives the locking rod 13 to engage inside the retaining ring 14 through its elastic force, and finally the baffle 11 is stably installed. The second spring 12 itself has strong elasticity, which can achieve the stable installation of the baffle 11. When the inner ring 1 and the outer ring 15 of the bearing rotate, the locking rod 13 can slide stably inside the retaining ring 14 without affecting the rotation of the bearing. This is the dustproof usage method of the fan bearing.

[0032] This is the entire working process of the high-balance, low-noise fan bearing. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0034] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-balance, low-noise fan bearing, comprising: The bearing inner ring (1) for installation, the oil collection groove (2) fixedly disposed inside the bearing inner ring (1), and the second steel ball (8) disposed at the left end of the bearing inner ring (1). Its characteristic is that it further includes: The oil collection tank (2) is provided with a lubrication mechanism, which includes a rubber plug (3), a sliding rod (4), a first spring (5) and an oil outlet (6). The rear end of the oil collection tank (2) is connected to the rubber plug (3), and the front end of the rubber plug (3) is provided with a sliding rod (4). The outer side of the rear end of the sliding rod (4) is provided with a first spring (5), and the left side of the oil collection tank (2) is provided with an oil outlet (6). The second steel ball (8) has a low-noise mechanism on its outer side, which includes a bearing ring (9) and a third steel ball (10). The bearing ring (9) is connected to the outer side of the second steel ball (8), and the third steel ball (10) is connected to the outer side of the bearing ring (9).

2. The high-balance, low-noise fan bearing according to claim 1, characterized in that: The sliding rod (4) forms a sliding structure inside the inner ring (1) of the bearing, and the outer side of the sliding rod (4) is in contact with the first spring (5).

3. The high-balance, low-noise fan bearing according to claim 1, characterized in that: The oil outlet (6) is provided with a first steel ball (7) inside, and the outer side of the first steel ball (7) is in a close fit with the second steel ball (8). The second steel ball (8) is set at an equal angle on the outer side of the bearing inner ring (1).

4. The high-balance, low-noise fan bearing according to claim 1, characterized in that: The bearing ring (9) forms a sliding structure on the outside of the second steel ball (8), and the outside of the bearing ring (9) is in a close fit with the third steel ball (10). The third steel ball (10) is set at an equal angle on the outside of the bearing ring (9).

5. A high-balance, low-noise fan bearing according to claim 1, characterized in that: The front and rear ends of the bearing ring (9) are connected to a baffle (11), and a second spring (12) and a locking rod (13) are provided inside the baffle (11). The locking rod (13) is symmetrically arranged about the center line of the second spring (12).

6. A high-balance, low-noise fan bearing according to claim 5, characterized in that: The locking rod (13) forms a sliding structure inside the baffle (11), and the locking rod (13) is connected to the locking ring (14) by a locking method. The locking ring (14) is fixedly installed on the inner wall of the bearing inner ring (1) and the bearing outer ring (15).

7. A high-balance, low-noise fan bearing according to claim 6, characterized in that: The inner wall of the bearing outer ring (15) is fitted with the third steel ball (10), and an oil collection groove (2) is provided inside the bearing outer ring (15).