Thin-wall bearing ring forging device

By installing baffles and setting up filters, temperature sensors, and heat dissipation structures on the inner and outer ring end faces of the bearing, the problems of ball wear and complex dustproof structures are solved, simplifying assembly and enabling real-time temperature monitoring, thereby improving the reliability and lubrication efficiency of the equipment.

CN224214581UActive Publication Date: 2026-05-08JIANGSU FIRST HEAVY FORGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FIRST HEAVY FORGING CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing ball bearings are prone to wear on the ball surface due to dust and impurities entering, and the dustproof mechanism is complex and troublesome to install.

Method used

A dustproof structure is formed by fixing baffle one and baffle two on the inner and outer ring end faces. Baffle one is provided with an oil injection hole and integrated filter screen. A temperature sensing probe is provided on the inner ring end face. A heat dissipation cavity and exhaust pipe are provided on the outer ring. Heat dissipation fins are provided on baffle two.

Benefits of technology

It effectively prevents external impurities from entering the raceway, avoids ball wear, simplifies the assembly process, monitors temperature in real time and activates heat dissipation, and improves equipment reliability and lubrication efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224214581U_ABST
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Abstract

The utility model belongs to the technical field of bearings, and discloses a thin-wall bearing ring forge piece device which comprises an inner ring (1), an outer ring (2) and balls (3) between the inner ring (1) and the outer ring (2), a first baffle (4) and a second baffle (5) are arranged on the end faces of the two sides of the inner ring (1) and the outer ring (2) respectively, an oil injection hole (6) is formed in the first baffle (4), and a filter screen (7) is arranged on the oil injection hole (6). The oil injection hole (6) is positioned between the outer ring (2) and the inner ring (1); an exhaust pipe (8) is arranged on the outer ring (2), a probe hole (16) is formed in the end face of the inner ring (1), a temperature sensing probe (9) is arranged in the probe hole (16), and the temperature sensing probe (9) faces the surface of the ball (3); a heat dissipation cavity (10) is formed in the surface of the outer ring (2), and the exhaust pipe (8) penetrates out of the heat dissipation cavity (10). The utility model effectively prevents external impurities from entering the inner raceway of the bearing, and has a simpler structure.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, specifically a device for forging thin-walled bearing rings. Background Technology

[0002] Bearings are primarily used to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. Existing ball bearings use a structure with balls positioned between the inner and outer rings, which allows dust to easily accumulate inside the bearing, accelerating wear on the ball surfaces.

[0003] The relevant reference CN209943342U discloses a special environmentally friendly stainless steel bearing. Its dustproof mechanism includes a clearance, a dust cover, and a retaining groove. The clearance is located between the outer ring and the inner ring of the bearing; the retaining groove is formed at both ends inside the clearance; the dust cover is snapped onto both sides of the clearance and located inside the retaining groove. The dustproof mechanism has a relatively complex structure and is difficult to install. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a thin-walled bearing ring forging device that effectively blocks external impurities from entering the internal raceway of the bearing and has a relatively simple structure.

[0005] To solve the above technical problems, this utility model provides a thin-walled bearing ring forging device, including an inner ring, an outer ring, and balls between the inner and outer rings. A baffle plate one and a baffle plate two are respectively provided on the two end faces of the inner and outer rings. An oil injection hole is provided on the baffle plate one, and a filter screen is provided on the oil injection hole. The oil injection hole is located between the outer and inner rings. An exhaust pipe is provided on the outer ring. A probe hole is opened on the end face of the inner ring, and a temperature sensing probe is provided in the probe hole, with the temperature sensing probe facing the surface of the balls. A heat dissipation cavity is provided on the surface of the outer ring, and the exhaust pipe extends out of the heat dissipation cavity.

[0006] By adopting the above technical solution, baffle one and baffle two are directly fixedly installed on the inner and outer ring end faces to form a dustproof structure. The structure is relatively simple and easy to assemble. The oil injection hole on baffle one integrates a filter screen, which can filter the injected lubricating oil and effectively block external impurities, such as dust and metal particles, from entering the raceway, thus avoiding wear caused by the grinding effect between the balls and the inner and outer ring raceways.

[0007] Preferably, the heat dissipation cavity is provided with a pipe hole, and the exhaust pipe passes through the pipe hole to exit the heat dissipation cavity.

[0008] By adopting the above technical solution, the exhaust pipe is passed through the pipe hole, resulting in a compact structure.

[0009] Preferably, the heat dissipation cavity is provided with a water inlet and a water outlet.

[0010] By adopting the above technical solution, the heat dissipation cavity circulates cooling water to the outer ring through the water inlet and outlet, which has lower energy consumption than the motor fan cooling.

[0011] Preferably, a wire hole is provided on the baffle.

[0012] By adopting the above technical solution, it is easy to connect the temperature sensing probe and the external controller.

[0013] Preferably, a sealing ring is provided in the wire hole, and the wiring seal of the temperature sensing probe passes through the baffle.

[0014] By adopting the above technical solution, the wiring is sealed with a sealing ring, preventing dust from entering the bearing through the gap between the wiring and the wire hole, which could lead to ball wear or lubrication failure.

[0015] Preferably, heat sinks are provided on the second baffle.

[0016] By adopting the above technical solution, the heat sink is directly integrated into the second surface of the baffle, which further improves the heat dissipation effect of the bearing. At the same time, there is no need to configure additional mounting brackets to assemble the heat sink, which is perfectly suitable for thin-walled bearings or installation environments with limited space.

[0017] Preferably, the heat sinks are of uniform height and perpendicular to the second baffle.

[0018] By adopting the above technical solution, the heat sink has a uniform height and is perpendicular to the second baffle, resulting in good overall structural rigidity and uniform airflow convection heat transfer.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model directly fixes baffle one and baffle two on the inner and outer ring end faces to form a dustproof structure. The structure is relatively simple and easy to assemble. The oil injection hole on baffle one integrates a filter screen, which can filter the injected lubricating oil and effectively block external impurities, such as dust and metal particles, from entering the raceway, thus avoiding wear between the balls and the inner and outer ring raceways due to the grinding effect.

[0021] 2. During operation, the bearing of this utility model will experience abnormal temperature rise due to friction. The temperature sensing probe in the probe hole on the inner ring end face collects the bearing temperature signal of the ball bearing in real time. When the temperature exceeds the safety threshold, heat dissipation is activated to prevent bearing seizure and sudden shutdown due to overheating, thereby improving the reliability of equipment operation.

[0022] 3. The baffle of this utility model is provided with a wire hole, and a sealing ring is provided in the wire hole. The wiring of the temperature sensing probe passes through the baffle and is sealed by the sealing ring to prevent dust from entering the bearing through the gap between the wiring and the wire hole, which would cause wear of the ball or failure of lubrication. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a structural diagram of the heat dissipation cavity of this utility model;

[0026] Figure 4 This is a structural diagram of the baffle of this utility model.

[0027] Part Numbers: 1. Inner Ring, 2. Outer Ring, 3. Ball Bearing, 4. Baffle 1, 5. Baffle 2, 6. Oil Inlet, 7. Filter Screen, 8. Exhaust Pipe, 9. Temperature Sensor Probe, 10. Heat Dissipation Chamber, 11. Pipe Hole, 12. Water Inlet, 13. Water Outlet, 14. Wire Hole, 15. Sealing Ring, 16. Probe Hole, 17. Heat Dissipation Fin. Detailed Implementation

[0028] like Figure 1 , 2 As shown, a thin-walled bearing ring forging device includes an inner ring 1, an outer ring 2, and balls 3 between the inner ring 1 and the outer ring 2. A first baffle 4 and a second baffle 5 are respectively provided on the two end faces of the inner ring 1 and the outer ring 2. An oil injection hole 6 is provided on the first baffle 4, and a filter screen 7 is installed on the oil injection hole 6. The oil injection hole 6 is located between the outer ring 2 and the inner ring 1. An exhaust pipe 8 is provided on the outer ring 2. A probe hole 16 is opened on the end face of the inner ring 1, and a temperature sensing probe 9 is installed in the probe hole 16, facing the surface of the balls 3. A heat dissipation cavity 10 is provided on the surface of the outer ring 2, and the exhaust pipe 8 extends out of the heat dissipation cavity 10. This application directly fixes the first baffle 1 and the second baffle 2 on the end faces of the inner and outer rings to form a dustproof structure. The structure is relatively simple and easy to assemble. The oil injection hole 6 on the first baffle 4 integrates a filter screen 7, which can filter the injected lubricating oil, effectively blocking external impurities such as dust and metal particles from entering the raceway, and preventing wear between the balls 3 and the inner and outer ring raceways due to the grinding effect. Meanwhile, the oil injection hole is located directly between the inner and outer rings, allowing for precise delivery of lubricating oil to the contact area between the balls and raceways. This reduces lubrication waste, improves lubrication efficiency, and extends bearing life. Bearings may experience abnormal temperature increases due to friction during operation. The temperature sensing probe 9 inside the probe hole 16 on the inner ring 1 end face collects the bearing temperature signal of the balls 3 in real time. When the temperature exceeds a safe threshold, heat dissipation is activated to prevent bearing seizure and sudden shutdown due to overheating, thus improving equipment reliability.

[0029] The heat dissipation cavity 10 is provided with a pipe hole 11, through which the exhaust pipe 8 exits the heat dissipation cavity 10. The exhaust pipe 8 exits through the pipe hole 11, resulting in a compact structure.

[0030] like Figure 2 As shown, a heat sink 17 is provided on the second baffle 5. The heat sink 17 is directly integrated into the surface of the second baffle 5, which further improves the heat dissipation effect of the bearing, and eliminates the need for additional mounting brackets to assemble the heat sink, making it perfectly suitable for thin-walled bearings or installation environments with limited space.

[0031] The heat sinks 17 are all at the same height and are perpendicular to the second baffle 5. The uniform height of the heat sinks 17 and their perpendicularity to the second baffle 5 result in good overall structural rigidity and uniform airflow convection heat transfer.

[0032] like Figure 3 As shown, the heat dissipation cavity 10 is provided with a water inlet 12 and a water outlet 13. The heat dissipation cavity 10 circulates cooling water to the outer ring 2 through the water inlet 12 and the water outlet 13, which has lower energy consumption than the motor fan cooling.

[0033] like Figure 4 As shown, a wire hole 14 is provided on the baffle 4. This facilitates the connection between the temperature sensing probe 9 and the external controller.

[0034] A sealing ring 15 is installed in the wire hole 14, and the wiring seal of the temperature sensing probe 9 extends out of the baffle 4. The sealing ring 15 seals the wiring, preventing dust from entering the bearing through the gap between the wiring and the wire hole, which could lead to wear or lubrication failure of the balls 3.

[0035] During operation, the inner ring 1 is mounted on the shaft. Baffles 4 and 5 cover both sides of the bearing, preventing dust from entering and wearing down the balls 3 between the inner and outer rings. A temperature sensor 9 continuously monitors the bearing's operating temperature. When the temperature exceeds a safe threshold, the cooling chamber 10 is activated, allowing circulating cold water to enter through the inlet 12 and exit through the outlet 13, thus cooling the bearing and preventing overheating and seizure. Vertically mounted heat sinks 17 on baffle 5 further enhance heat dissipation. Lubricating oil is injected through the oil filling hole 6 on baffle 4 to lubricate the balls 3.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A thin-walled bearing ring forging assembly, comprising an inner ring (1), an outer ring (2), and balls (3) between the inner ring (1) and the outer ring (2), characterized in that: Baffle 1 (4) and baffle 2 (5) are respectively provided on the two end faces of the inner ring (1) and the outer ring (2). A lubrication hole (6) is provided on the baffle 1 (4), and a filter screen (7) is provided on the lubrication hole (6). The lubrication hole (6) is located between the outer ring (2) and the inner ring (1). An exhaust pipe (8) is provided on the outer ring (2). A probe hole (16) is opened on the end face of the inner ring (1). A temperature sensing probe (9) is provided in the probe hole (16), and the temperature sensing probe (9) faces the surface of the ball (3). A heat dissipation cavity (10) is provided on the surface of the outer ring (2), and the exhaust pipe (8) passes through the heat dissipation cavity (10).

2. The thin-walled bearing ring forging device according to claim 1, characterized in that: The heat dissipation cavity (10) is provided with a pipe hole (11), and the exhaust pipe (8) passes through the pipe hole (11) and exits the heat dissipation cavity (10).

3. The thin-walled bearing ring forging device according to claim 1, characterized in that: The heat dissipation cavity (10) is provided with an inlet (12) and an outlet (13).

4. The thin-walled bearing ring forging device according to claim 1, characterized in that: A wire hole (14) is provided on the baffle (4).

5. The thin-walled bearing ring forging device according to claim 4, characterized in that: A sealing ring (15) is provided in the wire hole (14), and the wiring seal of the temperature sensing probe (9) passes through the baffle (4).

6. The thin-walled bearing ring forging device according to claim 1, characterized in that: Heat sink (17) is provided on the second baffle (5).

7. The thin-walled bearing ring forging device according to claim 6, characterized in that: The heat sink (17) has a uniform height and is perpendicular to the baffle (5).

Citation Information

Patent Citations

  • Special environment-friendly stainless steel bearing

    CN209943342U