High-rotating-speed deep groove ball bearing of automobile gearbox

Abstract

The utility model provides a high-rotating-speed deep groove ball bearing of an automobile gearbox, which comprises a low-threshold response outer ring, a bearing ball group is arranged between a bearing outer ring and a bearing inner ring of the low-threshold response outer ring, and the bearing ball group is limited by a retainer; the bearing sealing cover is respectively connected with a bearing outer ring and a bearing inner ring of the low-threshold response outer ring, an edge warping cover is arranged outside one side of the bearing outer ring, the bearing seat is fixedly arranged on the bearing outer ring through a positioning bolt, the bearing seat is fixedly connected with the edge warping cover through a locking bolt, and the bearing seat is provided with a plurality of edge warping notches; according to the utility model, a convenient and safe dismounting mode is created, the detection structure precision is protected, and the jamming risk is reduced. A low-threshold response outer ring is adopted, an ultra-sensitive vibration detection system is constructed, the response range is widened, the operation stability of the gearbox is improved, and the detection precision is guaranteed through double mechanisms.

Description

Technical Field

[0001] This utility model belongs to the field of deep groove ball bearing technology, and particularly relates to a high-speed deep groove ball bearing for automotive transmissions. Background Technology

[0002] Inside an automotive transmission, the high-speed rotational stability of the driveshaft is crucial, which often relies on the effective support of deep groove ball bearings. Deep groove ball bearings, as a key component of the transmission bearing housing, typically consist of an outer ring, inner ring, seal, cage, and balls, working together to ensure the smooth operation of the driveshaft.

[0003] Taking Chinese utility model patent CN 220286223 U as an example, this patent describes a deep groove ball bearing specifically designed for high-speed automotive transmissions, characterized by its ease of disassembly. Specifically, workers can use tools such as screwdrivers or pry bars to insert into a pre-set groove, using the bearing disassembly component as a fulcrum to pry the bearing retaining component outwards. However, this disassembly method has revealed some problems in practical applications:

[0004] First, the bearing detection components integrated on the bearing limiting member (including support springs and a detection striking ball) require high precision. If the limiting member bends during disassembly, the accuracy of its detection function will be significantly reduced. Second, the use of only a single support point for actuation not only increases the difficulty of disassembly but also affects the smoothness and efficiency of the process. Furthermore, this design, employing two springs with a single striking ball, can only respond to strong vibrations, resulting in a relatively high detection threshold and limiting its detection capability across a wider vibration range.

[0005] Therefore, it is essential to invent a high-speed deep groove ball bearing for automotive gearboxes. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a high-speed deep groove ball bearing for automotive transmissions, comprising a low threshold response outer ring, an inner ring, a ball assembly, a cage, a bearing seal cover, a warp cover, a bearing housing, positioning bolts, locking bolts, and warp slots. A ball assembly is disposed between the outer and inner rings of the low threshold response outer ring, and the ball assembly is constrained by the cage. The bearing seal cover is connected to both the outer and inner rings of the low threshold response outer ring. A warp cover is installed on the outer side of one side of the outer ring. The bearing housing is fixedly mounted on the outer ring by positioning bolts and is fixedly connected to the warp cover by locking bolts. The bearing housing is provided with a plurality of warp slots.

[0007] Preferably, the low threshold response outer ring includes a bearing outer ring, a response block, a response cavity, a response ball, a spring, a wobbling ball, and a sound hole. The response block, which is fixedly installed on the outer surface of the bearing outer ring, has a response cavity inside. The surface of the response block has a sound hole communicating with the response cavity. A plurality of the response balls are disposed inside the response cavity. The upper end of the response block is connected to the wobbling ball by a spring.

[0008] Preferably, the bearing outer ring, bearing inner ring, bearing ball assembly, cage, and bearing seal cover together constitute a high-speed deep groove ball bearing; the bearing outer ring surface is provided with positioning holes that match the positioning bolts, wherein the bearing housing is provided with threaded holes that engage with the positioning bolts.

[0009] Preferably, the response block installed on the outer surface of the bearing outer ring is perpendicular to its own center, the response block has a rectangular block structure, and the response block is located inside the warped edge cover.

[0010] Preferably, the response block has a rectangular cavity inside the response cavity, and the response ball is allowed to move within the response cavity.

[0011] Preferably, the response block is located within one of the warp grooves, a circular array of several warp grooves is formed on the surface of the bearing seat, and the warp cover is located outside the warp groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention innovatively incorporates a pry-off cover, pry-off slots, positioning bolts, and locking bolts, creating a new, convenient, and safe disassembly method. This design cleverly separates the pry-off cover from the detection response structure, effectively preventing the potential impact of disassembly on the accuracy of the detection response structure. Simultaneously, the carefully designed multiple pry-off slots, distributed in a circular array, allow the bearing to be smoothly pulled out from multiple angles and positions, significantly reducing the risk of jamming during disassembly.

[0014] This invention's low-threshold response outer ring design, through the combination of a response block, a response cavity, a response sphere, and a sound hole, constructs a more sensitive vibration detection system. Compared to traditional designs, this mechanism can respond more accurately to vibrations over a wider range, lowering the detection threshold and improving the stability and safety of gearbox operation. Simultaneously, the design of the response block being perpendicular to its own center, and the rectangular cavity structure within the response cavity, ensures the free movement of the response sphere within the cavity, further enhancing the accuracy and reliability of the detection.

[0015] Furthermore, this invention ingeniously incorporates a spring and a wobbling ball into its low-threshold response outer ring. Although the spring and wobbling ball do not directly generate a sound response during vibration, they trigger a shaking effect, thereby achieving a visual response mechanism. This dual sound and visual response mechanism provides strong assurance for overall detection accuracy, further enhancing the system's practicality and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a half-sectional structural schematic diagram of the present invention.

[0018] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0019] In the picture:

[0020] Low threshold response outer ring 1, bearing outer ring 11, response block 12, response cavity 13, response ball 14, spring 15, shaking ball 16, sound hole 17, bearing inner ring 2, bearing ball assembly 3, cage 4, bearing seal cover 5, warp cover 6, bearing seat 7, positioning bolt 8, locking bolt 9, warp groove 10. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0023] As attached Figure 1 To be continued Figure 3 As shown:

[0024] This utility model provides a high-speed deep groove ball bearing for automotive transmissions, comprising a low threshold response outer ring 1, an inner ring 2, a ball assembly 3, a cage 4, a bearing seal 5, a warp cover 6, a bearing housing 7, positioning bolts 8, locking bolts 9, and warp grooves 10. The ball assembly 3 is disposed between the outer ring 11 and the inner ring 2 of the low threshold response outer ring 1, and the ball assembly 3 is constrained by the cage 4. The bearing seal 5 is connected to both the outer ring 11 and the inner ring 2 of the low threshold response outer ring 1. A warp cover 6 is installed on the outer side of the outer ring 11. The bearing housing 7 is fixedly mounted on the outer ring 11 by positioning bolts 8, and is fixedly connected to the warp cover 6 by locking bolts 9. The bearing housing 7 is provided with a plurality of warp grooves 10.

[0025] Furthermore, the low-threshold response outer ring 1 includes a bearing outer ring 11, a response block 12, a response cavity 13, a response ball 14, a spring 15, a wobbling ball 16, and a sound hole 17. One or more response blocks 12 are fixedly mounted on the outer surface of the bearing outer ring 11, and a response cavity 13 is provided inside the response block 12. The surface of the response block 12 is also provided with a sound hole 17 communicating with the response cavity, so that when the response ball 14 moves in the cavity, a sound signal can be generated. Several response balls 14 are arranged in the response cavity 13, which can roll freely in the cavity to respond to external vibrations. In particular, the upper end of the response block 12 is connected to the wobbling ball 16 through the spring 15. When vibration occurs, the wobbling ball 16 will shake accordingly, providing additional visual detection signals.

[0026] Furthermore, the high-speed deep groove ball bearing is mainly composed of key components such as the bearing outer ring 11, bearing inner ring 2, bearing ball assembly 3, cage 4, and bearing seal cover 5. These components work together to ensure stable operation of the bearing at high speeds. In addition, the surface of the bearing outer ring 11 is provided with locating holes, which match the locating bolts 8 for securely mounting the bearing outer ring 11 onto the bearing housing 7. The bearing housing 7 has threaded holes that engage with the locating bolts 8, further enhancing the stability of the installation.

[0027] Furthermore, the response block 12 on the outer surface of the bearing outer ring 11 is designed as a rectangular block structure perpendicular to the bearing center. This design not only ensures the sensitivity of the response block in vibration detection but also helps maintain the overall stability of the bearing. The response block 12 is located inside the warp cover 6 and cooperates with the warp groove 10, allowing the bearing to be easily moved during disassembly.

[0028] Furthermore, the response cavity 13 inside the response block 12 is designed as a rectangular cavity structure, providing sufficient space for the movement of the response ball 14. The response ball can roll freely within the cavity to respond to external vibrations. This design makes vibration detection more sensitive and accurate.

[0029] Furthermore, several raised edge slots 10 are arranged in a circular array on the surface of the bearing housing 7. These slots cooperate with the raised edge cover 6, allowing the bearing to be easily moved during disassembly. The raised edge cover 6 is located outside the raised edge slots, serving a protective and guiding function. This design not only improves the ease of disassembly but also helps protect the bearing and its testing components from damage.

[0030] The working principle is as follows: First, the core components of the bearing include a low-threshold response outer ring 1, an inner ring 2, a ball bearing assembly 3, a cage 4, and a bearing seal 5. The design of the low-threshold response outer ring 1 is one of the innovations of this invention. It can generate sound and visual signals through an internal response mechanism when the bearing is subjected to external vibration, thereby achieving real-time monitoring of the bearing's condition.

[0031] Specifically, the low-threshold response outer ring 1 consists of components such as a bearing outer ring 11, a response block 12, a response cavity 13, a response ball 14, a spring 15, a wobbling ball 16, and a sound hole 17. When the bearing is subjected to external vibration, the vibration is transmitted to the bearing outer ring 11, causing the response ball 14 in the response block 12 to roll within the response cavity 13. This rolling motion generates a sound signal through the sound hole 17, thereby achieving sound detection of the vibration. At the same time, the spring 15 and the wobbling ball 16 at the upper end of the response block 12 also wobble under the action of vibration, providing additional visual detection signals.

[0032] Furthermore, the bearing ball assembly 3 is constrained by the cage 4, rolling between the inner ring 2 and the outer ring 11, thereby reducing friction and supporting and transmitting loads. The bearing seal 5 is used to prevent external impurities from entering the bearing, keeping the bearing clean and lubricated.

[0033] During bearing installation, the outer ring 11 of the bearing is fixedly connected to the bearing housing 7 via positioning holes and positioning bolts 8, while the bearing housing 7 is fixedly connected to the lifting cover 6 via locking bolts 9. The design of the lifting cover 6 and the lifting groove 10 allows the bearing to be easily moved during disassembly, improving the convenience of disassembly.

[0034] Finally, when the bearing operates at high speeds, all components work together to ensure stable operation. The rolling motion of the bearing ball assembly 3 reduces friction and wear, improving mechanical efficiency and speed. Simultaneously, the vibration detection mechanism of the low-threshold response outer ring 1 can monitor the bearing's condition in real time. Once abnormal vibration is detected, timely measures can be taken for repair or replacement to prevent malfunctions.

[0035] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high speed deep groove ball bearing for an automotive gearbox, characterized in that, The application relates to a high-rotation-speed deep-groove ball bearing, which comprises a low-threshold-response outer ring (1), a bearing inner ring (2), a bearing ball group (3), a retainer (4), a bearing sealing cover (5), a flange cover (6), a bearing seat (7), a positioning bolt (8), a locking bolt (9) and flange notches (10), the bearing ball group (3) is arranged between the bearing outer ring (11) of the low-threshold-response outer ring (1) and the bearing inner ring (2), and the bearing ball group (3) is limited by the retainer (4); the bearing sealing cover (5) is connected with the bearing outer ring (11) and the bearing inner ring (2) of the low-threshold-response outer ring (1) respectively, wherein the bearing outer ring (11) is externally provided with the flange cover (6) on one side, the bearing seat (7) is fixedly installed on the bearing outer ring (11) through the positioning bolt (8), the bearing seat (7) is fixedly connected with the flange cover (6) through the locking bolt (9), and the bearing seat (7) is provided with a plurality of flange notches (10).

2. A high speed deep groove ball bearing for an automotive gearbox as claimed in claim 1, characterized in that: The low-threshold-response outer ring (1) comprises a bearing outer ring (11), a response block (12), a response cavity (13), response balls (14), a spring (15), a shaking ball (16) and an acoustic hole (17), the response cavity (13) is arranged in the response block (12) fixedly installed on the outer surface of the bearing outer ring (11), the acoustic hole (17) is formed in the surface of the response block (12) and communicates with the response cavity (13), and a plurality of the response balls (14) are arranged in the response cavity (13); wherein the upper end of the response block (12) is connected with the shaking ball (16) through the spring (15).

3. A high speed deep groove ball bearing for an automotive transmission as claimed in claim 2, wherein: The bearing outer ring (11), the bearing inner ring (2), the bearing ball group (3), the retainer (4) and the bearing sealing cover (5) jointly constitute a high-rotation-speed deep-groove ball bearing; the bearing outer ring (11) is provided with a positioning hole matched with the positioning bolt (8) on the surface, and the bearing seat (7) is provided with a screw hole engaged with the positioning bolt (8).

4. A high speed deep groove ball bearing for an automotive gearbox as claimed in claim 3, characterized in that: The response block (12) arranged on the outer surface of the bearing outer ring (11) is perpendicular to the center of the bearing outer ring (11), the response block (12) is a rectangular block structure, and the response block (12) is located on the inner side of the flange cover (6).

5. A high speed deep groove ball bearing for an automotive gearbox as claimed in claim 4, characterized in that: The response cavity (13) arranged in the response block (12) is a rectangular cavity, and the response balls (14) are allowed to move in the response cavity (13).

6. A high speed deep groove ball bearing for an automotive gearbox as claimed in claim 5, characterized in that: The response block (12) is located in one of the flange notches (10), a plurality of the flange notches (10) are circularly arranged on the surface of the bearing seat (7), and the flange cover (6) is located on the outer side of the flange notches (10).

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