High-precision waterproof motor bearing

Abstract

The utility model discloses a kind of high-precision waterproof motor bearing, it is related to bearing field, including outer ring, the inner ring of being set in the outer ring interior, multiple ball bearings being set between outer ring and inner ring, for supporting ball bearing's support mechanism, the support mechanism includes two support seats, two The support seat is respectively arranged in the two sides of ball bearing, two The support seat is connected by connecting bolt, two sealing mechanisms are equipped between outer ring and inner ring, two The sealing mechanism is located at the two sides of support mechanism respectively.The utility model multilayer composite sealing structure design, constructs all-around waterproof dustproof barrier, significantly improves bearing environmental adaptability, the collaborative design of oiling channel and sealing plug, realize the functional integration of lubrication and waterproof, give consideration to maintenance convenience and long-term effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a high-precision waterproof electric motor bearing. Background Technology

[0002] During the operation of an electric motor, bearings are a critical component, and their performance directly affects the overall operational stability and service life of the motor. Especially in harsh operating conditions such as humidity and dust, the bearing's waterproof and dustproof capabilities, as well as its lubrication effect, become key factors in ensuring its reliable operation.

[0003] Traditional electric motor bearings mostly employ a single-layer seal structure. While this structure can maintain a certain level of sealing performance under normal operating conditions, its shortcomings become apparent in harsh environments. Because the sealing contact surface between the single-layer seal and the inner and outer rings of the bearing is relatively simple, tiny gaps exist, allowing dust, water, and other contaminants to easily penetrate the bearing. Once these contaminants enter, they rapidly disrupt the bearing's internal lubrication environment, accelerate wear between the balls and raceways, increase bearing operating resistance and heat generation, and ultimately lead to serious problems such as bearing seizure and damage, significantly shortening the bearing's lifespan and increasing equipment maintenance costs and downtime. Furthermore, in terms of waterproofing, there is a lack of effective auxiliary measures; a single-layer seal structure alone cannot completely prevent moisture penetration, especially in prolonged humid environments. Moisture can easily penetrate the bearing, causing corrosion and other damage, severely affecting bearing performance. Therefore, a high-precision waterproof electric motor bearing needs to be designed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision waterproof motor bearing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision waterproof electric motor bearing includes an outer ring, an inner ring disposed inside the outer ring, a plurality of balls disposed between the outer ring and the inner ring, and a support mechanism for supporting the balls. The support mechanism includes two support seats, which are respectively disposed on both sides of the balls and connected by connecting bolts. Two sealing mechanisms are provided between the outer ring and the inner ring, which are respectively located on both sides of the support mechanism.

[0006] As a further improvement of this utility model, the number of connecting bolts is three.

[0007] As a further improvement of this utility model, the sealing mechanism includes a sealing ring, the sealing ring having two first flanges, and the outer ring and inner ring having first annular grooves that mate with the first flanges on their surfaces. The outer sidewall and inner sidewall of the sealing ring both have second flanges, and the inner wall of the outer ring and the outer wall of the inner ring both have second annular grooves that mate with the second flanges.

[0008] As a further improvement of this utility model, the sealing ring is provided with an oil injection channel inside, and the oil injection channel is connected to the first annular groove and the second annular groove.

[0009] As a further improvement of this utility model, a sealing plug communicating with the oil injection channel is fixedly embedded on the side wall of the sealing ring.

[0010] As a further improvement of this utility model, a retaining ring is provided on both the outer and inner sidewalls of the sealing ring.

[0011] The beneficial effects of this utility model are: On the outside, the outer wall of the sealing ring and the retaining ring on the inner wall directly fit against the surfaces of the outer and inner rings, preventing dust, water and other contaminants from entering through the tiny gaps between the sealing ring and the inner and outer rings. On the inside, the fitting and matching of the first flange with the first annular groove and the second flange with the second annular groove form a stepped "maze-like" sealing path between the sealing ring and the outer and inner rings. Contaminants must bypass multiple tortuous gaps to enter the bearing, greatly increasing the difficulty of intrusion. Compared with the traditional single-layer sealing structure, the reliability of waterproofing and dustproofing is significantly improved, making it especially suitable for harsh working conditions such as humid and dusty environments.

[0012] The oil injection channel inside the sealing ring is connected to the first and second annular grooves, allowing lubricating oil to be directly injected into the annular grooves and fill the contact interface between the ball and the sealing ring, forming a stable lubricating film. This effectively reduces frictional loss during ball rolling, reduces the generation of wear particles, and extends the service life of the bearing. At the same time, the hydrophobic properties of the lubricating oil further enhance the waterproof effect, and the oil film can prevent moisture from penetrating into the bearing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a high-precision waterproof electric motor bearing proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the outer ring, inner ring, balls, support seat, and connecting bolts of a high-precision waterproof motor bearing proposed in this utility model. Figure 3 This is a cross-sectional structural schematic diagram of a high-precision waterproof electric motor bearing proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0014] In the diagram: 1 Outer ring, 2 Inner ring, 3 Sealing ring, 4 Support seat, 5 Connecting bolt, 6 Ball bearing, 7 Sealing plug, 8 Retaining ring, 9 First flange, 10 First annular groove, 11 Second annular groove, 12 Second flange, 13 Oil injection channel. Detailed Implementation

[0015] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 A high-precision waterproof electric motor bearing includes an outer ring 1, an inner ring 2 disposed inside the outer ring 1, a plurality of balls 6 disposed between the outer ring 1 and the inner ring 2, and a support mechanism for supporting the balls 6. The support mechanism includes two support seats 4, which are respectively disposed on both sides of the balls 6. The two support seats 4 are connected by three connecting bolts 5. Two sealing mechanisms are provided between the outer ring 1 and the inner ring 2, which are respectively located on both sides of the support mechanism.

[0017] In this invention, the sealing mechanism includes a sealing ring 3. Both the outer and inner walls of the sealing ring 3 are provided with retaining rings 8. By utilizing the contact between the retaining rings 8 and the surfaces of the outer ring 1 and inner ring 2, dust and water can be effectively prevented from entering through the gap between the outer ring 1, inner ring 2, and the sealing ring 3. The sealing ring 3 has two first flanges 9. The surfaces of the outer ring 1 and inner ring 2 are each provided with a first annular groove 10 that mates with the first flanges 9. The outer and inner walls of the sealing ring 3 are each provided with a second flange 12. The inner wall of the outer ring 1 and the outer wall of the inner ring 2 are each provided with a second annular groove 11 that mates with the second flanges 12. The engagement of the first flanges 9 with the first annular groove 10 and the second flanges 12 with the second annular groove 11 further prevents dust and water from entering between the outer ring 1 and inner ring 2, improving the bearing's durability.

[0018] The sealing ring 3 has an oil injection channel 13 inside, which is connected to the first annular groove 10 and the second annular groove 11. The oil injection channel 13 can be used to inject lubricating oil into the first annular groove 10 and the second annular groove 11, which can play a lubricating role. In addition, the hydrophobic properties of the lubricating oil can further prevent water from entering and improve waterproof performance. A sealing plug 7 connected to the oil injection channel 13 is fixedly embedded on the side wall of the sealing ring 3. The sealing plug 7 is made of rubber and has a through hole in the middle. Since the sealing plug 7 is made of rubber and has elasticity, the through hole is closed under normal conditions to prevent lubricating oil leakage. Lubricating oil can be injected into the oil injection channel 13 by inserting a needle tip into the through hole of the sealing plug 7, which greatly reduces the maintenance difficulty and time cost.

[0019] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-precision waterproof electric motor bearing, comprising an outer ring (1), an inner ring (2) disposed inside the outer ring (1), a plurality of balls (6) disposed between the outer ring (1) and the inner ring (2), and a support mechanism for supporting the balls (6), characterized in that, The support mechanism includes two support seats (4), which are respectively disposed on both sides of the ball (6). The two support seats (4) are connected by connecting bolts (5). Two sealing mechanisms are provided between the outer ring (1) and the inner ring (2), and the two sealing mechanisms are respectively located on both sides of the support mechanism. The sealing mechanism includes a sealing ring (3), which has two first flanges (9). The outer ring (1) and the inner ring (2) are each provided with a first annular groove (10) that mates with the first flanges (9). The outer sidewall and the inner sidewall of the sealing ring (3) are each provided with a second flange (12). The inner wall of the outer ring (1) and the outer wall of the inner ring (2) are each provided with a second annular groove (11) that mates with the second flanges (12). The sealing ring (3) has an oil injection channel (13) inside, which is connected to the first annular groove (10) and the second annular groove (11).

2. The high-precision waterproof motor bearing according to claim 1, characterized in that, The number of connecting bolts (5) is three.

3. The high-precision waterproof motor bearing according to claim 1, characterized in that, A sealing plug (7) communicating with the oil injection channel (13) is fixedly embedded on the side wall of the sealing ring (3).

4. A high-precision waterproof motor bearing according to claim 1, characterized in that, The sealing ring (3) is provided with retaining rings (8) on both the outer and inner walls.

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