A bearing based on rotational speed for improved lubrication

Abstract

The application provides a bearing for improving lubrication based on rotating speed, and relates to the technical field of bearings, which comprises an outer ring, an inner ring, a retainer, a sealing ring and a plurality of rolling balls; the outer ring is internally provided with an oil storage cavity and a first oil injection channel, one end of the first oil injection channel is in communication with the oil storage cavity, and the other end is in communication with a sealed space; the application further comprises a transmission structure for transmitting the vibration of the sealing ring when the inner ring rotates to a valve structure; and the valve structure is used for connecting or isolating the first oil injection channel and the sealed space. When the inner ring rotates, the sealing ring will vibrate under the influence of the friction force, the transmission structure is used for transmitting the vibration of the sealing ring to the valve structure, the first oil injection channel and the sealed space are connected or isolated, lubrication is realized when the first oil injection channel and the sealed space are connected, and no additional noise is generated.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a bearing that improves lubrication based on rotational speed. Background Technology

[0002] Bearings generally consist of an inner ring, an outer ring, a cage, balls, and seals. The outer ring is usually fixed, while the inner ring rotates. Lubricating oil or grease is required between the balls and the inner ring to reduce resistance during rotation of the inner ring.

[0003] In the prior art, a cavity for storing lubricating oil is provided in the outer ring, and a valve structure is provided at the outlet of the cavity. The cavity is opened intermittently by the collision and squeezing of the ball bearings to discharge the lubricating oil. The discharged lubricating oil will come into contact with the ball bearings, thereby achieving lubrication.

[0004] However, this method of using impact to expel lubricating oil generates additional noise and needs improvement. Utility Model Content

[0005] In view of the above situation, this utility model provides a bearing that improves lubrication based on rotational speed, aiming to solve the technical problem that the existing method of using impact to discharge lubricating oil will generate additional noise.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a bearing for improving lubrication based on rotational speed, including an outer ring, an inner ring, a cage, a seal ring, and multiple balls; the inner ring is sleeved inside the outer ring, and both ends of the inner and outer rings are provided with seal rings. The inner ring, outer ring, and seal rings together form a sealed space, and the cage and balls are disposed in the sealed space. The cage is used to separate the individual balls.

[0008] The outer ring has an oil storage chamber and a first oil injection channel. One end of the first oil injection channel is connected to the oil storage chamber and the other end is connected to a sealed space. The oil storage chamber can be replenished with lubricating oil.

[0009] Also includes:

[0010] The transmission structure is used to transmit the vibration of the sealing ring to the valve structure when the inner ring rotates;

[0011] The valve structure is located between the first oil injection channel and the sealed space. The valve structure can move back and forth with the vibration of the sealing ring to connect or isolate the first oil injection channel and the sealed space.

[0012] In some embodiments of this utility model, the sealing ring is made of rubber.

[0013] In some embodiments of this utility model, the oil storage chamber is connected to an oil replenishment port, and the oil replenishment port is detachably connected to an oil replenishment plug.

[0014] In some embodiments of this utility model, the valve structure includes:

[0015] The second oil injection channel has one end in contact with the sealing ring and the other end extending into the sealed space; one end of the first oil injection channel is connected to the middle of the second oil injection channel.

[0016] The movable plug, which has a sliding seal, fits in the middle of the second oil injection channel. The side wall of the movable plug can block or open the end of the first oil injection channel that is connected to the second oil injection channel.

[0017] In some embodiments of this utility model, the transmission structure includes:

[0018] The fixing block is fixed inside the second oil injection channel;

[0019] The connecting rod slides through the fixed block, with one end connected to the movable plug and the other end connected to the contact block;

[0020] Contact block, used to contact the sealing ring;

[0021] The elastic element is used to keep the contact block in contact with the sealing ring.

[0022] In some embodiments of this utility model, the elastic element includes a spring.

[0023] In some embodiments of this utility model, it further includes:

[0024] The lubrication channel, located within the fixed block, is used to add lubricating oil between the connecting rod and the fixed block;

[0025] The third oil injection channel is connected at one end to the middle of the first oil injection channel and at the other end to the lubrication channel.

[0026] In some embodiments of this utility model, the fixing block has a guide groove, which is disposed between the lubrication channel and the connecting rod. A plug is slidably sealed in the guide groove and connected to the side wall of the connecting rod. The plug can block or open the lubrication channel.

[0027] The embodiments of this utility model have at least the following advantages or beneficial effects:

[0028] As the inner ring rotates, the sealing ring vibrates due to friction. This vibration is transmitted to the valve structure via a transmission mechanism, causing the valve structure to reciprocate. This connects or isolates the first oil injection channel from the sealed space. When the first oil injection channel is connected to the sealed space, the lubricating oil in the oil reservoir flows into the sealed space and comes into contact with the balls, inner ring, and outer ring, achieving lubrication. As the inner ring's rotation speed increases, the valve structure opens more frequently, resulting in better lubrication without generating additional noise.

[0029] Other features and advantages of this invention will be set forth in the following description. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of a bearing whose lubrication is improved based on rotational speed;

[0032] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0033] Icons: 1-Outer ring, 11-Oil reservoir, 12-First oil injection channel, 2-Inner ring, 3-Cage, 4-Ball, 5-Sealing ring, 6-Sealed space, 71-Second oil injection channel, 72-Moving plug, 81-Fixing block, 82-Connecting rod, 83-Contact block, 84-Spring, 91-Third oil injection channel, 92-Lubrication channel, 93-Guide groove, 94-Block. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "lateral", "length", "width", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] The embodiments of this utility model will be described in detail below.

[0039] Example

[0040] See Figures 1-2 This embodiment provides a bearing for improving lubrication based on rotational speed, including an outer ring 1, an inner ring 2, a cage 3, balls 4, and a sealing ring 5. The inner ring 2 is fitted inside the outer ring 1. Both ends of the inner ring 2 and the outer ring 1 are provided with rubber sealing rings 5. The inner ring 2, the outer ring 1, and the sealing rings 5 ​​together form a sealed space 6. The cage 3 and the balls 4 are disposed in the sealed space 6. The cage 3 is used to separate the individual balls 4.

[0041] The outer ring 1 has an oil storage chamber 11 and a first oil injection channel 12. One end of the first oil injection channel 12 is connected to the oil storage chamber 11 and the other end is connected to the sealed space 6. The oil storage chamber 11 is connected to an oil replenishment port (not shown in the figure). The oil replenishment port is detachably connected (such as by a threaded connection) to an oil replenishment plug (not shown in the figure). By opening the oil replenishment plug, lubricating oil can be added to the oil storage chamber 11.

[0042] Bearings that improve lubrication based on rotational speed also include transmission structures and valve structures.

[0043] The transmission structure is used to transmit the vibration of the sealing ring 5 to the valve structure.

[0044] The valve structure is located between the first oil injection channel 12 and the sealed space 6. The valve structure can move back and forth to connect or isolate the first oil injection channel 12 and the sealed space 6.

[0045] To ensure a good seal, the inner ring 2 and the sealing ring 5 are in close contact, and there is a certain amount of friction between them. When the inner ring 2 rotates, the sealing ring 5 will vibrate due to this friction. In this embodiment, a transmission structure is used to transmit the vibration of the sealing ring 5 to the valve structure, causing the valve structure to move back and forth, thereby connecting or isolating the first oil injection channel 12 and the sealed space 6. When the first oil injection channel 12 and the sealed space 6 are connected, the lubricating oil in the oil storage chamber 11 will flow into the sealed space 6 and come into contact with the ball bearing 4, the inner ring 2, and the outer ring 1, achieving lubrication. As the rotation speed of the inner ring 2 increases, the valve structure opens more frequently, resulting in better lubrication and no additional noise.

[0046] The valve structure includes a second oil injection channel 71 and a movable plug 72.

[0047] One end of the second oil injection channel 71 is in contact with the sealing ring 5, and the other end extends into the sealed space 6. One end of the first oil injection channel 12 is connected to the middle of the second oil injection channel 71.

[0048] The movable plug 72 is slidably sealed in the middle of the second oil injection channel 71. The side wall of the movable plug 72 can block or open the end of the first oil injection channel 12 that is connected to the second oil injection channel 71.

[0049] The transmission structure includes a fixed block 81, a connecting rod 82, a contact block 83, and a spring 84.

[0050] The fixing block 81 is fixed inside the second oil injection channel 71.

[0051] The connecting rod 82 slides through the fixed block 81, with one end of the connecting rod 82 connected to the movable plug 72 and the other end connected to the contact block 83.

[0052] Contact block 83 is used to contact the sealing ring 5.

[0053] Spring 84 is located between contact block 83 and fixing block 81, and is used to keep contact block 83 in contact with sealing ring 5. Spring 84 is a type of elastic element.

[0054] When the sealing ring 5 vibrates, the contact block 83 transmits the vibration to the movable plug 72 via the connecting rod 82. Under the action of the spring 84's restoring force, the movable plug 72 moves laterally back and forth, thereby opening or closing the valve structure. Specifically, when the movable plug 72 moves to the left and is misaligned with the first oil injection channel 12, the first oil injection channel 12 and the sealed space 6 are connected, and the valve structure is open. When the movable plug 72 moves to the right and completely blocks the first oil injection channel 12, the first oil injection channel 12 and the sealed space 6 are isolated, and the valve structure is closed. In addition, under the action of the spring 84's restoring force, one side of the sealing ring 5 can make closer contact with the inner ring 2 and the outer ring 1.

[0055] This embodiment also includes a third oil injection channel 91 and a lubrication channel 92.

[0056] One end of the third oil injection channel 91 is connected to the middle of the first oil injection channel 12, and the other end is connected to the lubrication channel 92.

[0057] The lubrication channel 92 is provided inside the fixing block 81, and the lubrication channel 92 is used to add lubricating oil between the connecting rod 82 and the fixing block 81.

[0058] By setting up the third oil injection channel 91 and the lubrication channel 92, the lubricating oil in the oil storage chamber 11 can provide lubrication for the sliding connection between the connecting rod 82 and the fixed block 81, so that the connecting rod 82 can move back and forth more smoothly to transmit the vibration of the sealing ring 5.

[0059] Furthermore, the fixing block 81 has a guide groove 93, which is located between the lubrication channel 92 and the connecting rod 82. A plug 94 is slidably sealed within the guide groove 93 and connected to the side wall of the connecting rod 82. The plug 94 can block or open the lubrication channel 92. When the connecting rod 82 reciprocates, the plug 94 can block or open the lubrication channel 92. After the lubrication channel 92 is opened, the lubricating oil in the oil storage chamber 11 passes through the guide groove 93 and enters the space between the connecting rod 82 and the fixing block 81 to achieve lubrication.

[0060] It should be noted that this application does not limit the use of other lubrication methods, and this embodiment can be combined with other lubrication methods.

[0061] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bearing for improving lubrication based on rotational speed, comprising an outer ring, an inner ring, a cage, a seal ring, and a plurality of balls; the inner ring is sleeved inside the outer ring, and the seal ring is provided at both ends of the inner ring and the outer ring, the inner ring, the outer ring, and the seal ring together forming a sealed space, the cage and the balls being disposed within the sealed space, the cage being used to separate the individual balls, characterized in that: The outer ring has an oil storage chamber and a first oil injection channel. One end of the first oil injection channel is connected to the oil storage chamber and the other end is connected to the sealed space. The oil storage chamber can be replenished with lubricating oil. Also includes: A transmission structure is used to transmit the vibration of the sealing ring to the valve structure when the inner ring rotates; A valve structure is disposed between the first oil injection channel and the sealed space. The valve structure can reciprocate as the sealing ring vibrates, so as to connect or isolate the first oil injection channel and the sealed space.

2. The bearing with improved lubrication based on rotational speed according to claim 1, characterized in that, The sealing ring is made of rubber.

3. The bearing with improved lubrication based on rotational speed according to claim 1, characterized in that, The oil storage chamber is connected to an oil replenishment port, and the oil replenishment port is detachably connected to an oil replenishment plug.

4. The bearing with improved lubrication based on rotational speed according to claim 1, characterized in that, The valve structure includes: The second oil injection channel has one end in contact with the sealing ring and the other end extending into the sealed space; one end of the first oil injection channel is connected to the middle of the second oil injection channel; A movable plug, which is slidably sealed in the middle of the second oil injection channel, has a sidewall that can block or open the end of the first oil injection channel that is connected to the second oil injection channel.

5. The bearing with improved lubrication based on rotational speed according to claim 4, characterized in that, The transmission structure includes: A fixing block is fixed inside the second oil injection channel; A connecting rod slides through the fixed block, with one end of the connecting rod connected to the movable plug and the other end connected to the contact block; Contact block, used to contact the sealing ring; An elastic element is used to keep the contact block in contact with the sealing ring.

6. The bearing with improved lubrication based on rotational speed according to claim 5, characterized in that, The elastic element includes a spring.

7. The bearing with improved lubrication based on rotational speed according to claim 5, characterized in that, Also includes: A lubrication channel is provided within the fixing block for adding lubricating oil between the connecting rod and the fixing block; The third oil injection channel is connected at one end to the middle of the first oil injection channel and at the other end to the lubrication channel.

8. The bearing with improved lubrication based on rotational speed according to claim 7, characterized in that, The fixing block has a guide groove, which is located between the lubrication channel and the connecting rod. A plug is slidably sealed in the guide groove and connected to the side wall of the connecting rod. The plug can block or open the lubrication channel.

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