Retainer for deep groove ball bearing

Abstract

The utility model discloses a retainer for a deep groove ball bearing, which comprises a first retainer body and a second retainer body, the first retainer body is sleeved outside the second retainer body, the bottom surface of the first retainer body is connected with the bottom surface of the second retainer body through a bottom plate, and the first retainer body, the second retainer body and the bottom plate are combined to form an oil storage tank for accommodating lubricating grease. A plurality of first pockets are formed in the first frame body, and second pockets with the same number as the first pockets are formed in the second frame body. The lubricating grease storage tank is simple in structure, convenient to produce and machine, capable of effectively storing lubricating grease and good in using effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of retainer for deep groove ball bearing. BACKGROUND

[0002] Double-row angular contact ball bearing plays an indispensable role in multiple key fields due to its simple structure, convenient use, and excellent load-carrying capacity. In machine tool spindles, it ensures high-precision rotation of the spindle, meeting the stringent requirements of precision machining. In industrial equipment, whether it is a high-speed centrifuge or a heavy-duty crane, double-row angular contact ball bearings can stably support equipment operation, ensuring the continuity and efficiency of production. In the automotive industry, from engines to transmissions, the application of this bearing optimizes power transmission and enhances vehicle performance. With the continuous upgrading of manufacturing industry, the application market prospect of double-row angular contact ball bearing is increasingly broad, and the innovative research on its structure also contains great potential.

[0003] However, current double-row angular contact ball bearings have many problems in actual application. The existing bearing retainer is poorly designed in terms of storing lubricating grease, leading to insufficient lubrication. When the bearing operates at high speed and high load, the friction between components intensifies, generating a large amount of heat, which seriously affects the service life of the bearing and the stability of the equipment. In addition, the existing bearing retainer structure is complex, which not only increases the processing difficulty and significantly raises the production cost, but also makes the roller installation process cumbersome, requiring a large amount of time and labor cost, which seriously restricts the improvement of production efficiency. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a retainer for deep groove ball bearing, which is simple in structure, convenient to produce and process, can effectively store lubricating grease, and has good use effect.

[0005] To achieve the above purpose, the utility model provides a retainer for deep groove ball bearing, which comprises a first frame body and a second frame body. The first frame body is sleeved outside the second frame body. The bottom surface of the first frame body is connected to the bottom surface of the second frame body through a bottom plate. The first frame body, the second frame body, and the bottom plate combine to form an oil storage groove for accommodating lubricating grease. A plurality of first pockets are provided on the first frame body. The second frame body is provided with a number of second pockets, which is the same as the number of first pockets.

[0006] The beneficial effects of such arrangement are: such arrangement, in terms of roller positioning, the first pocket and the second pocket precisely match, and the position of the roller is doubly limited. When the deep groove ball bearing is in operation, the roller can always maintain on the predetermined track under the joint action of the two pockets, avoiding the roller from shifting and deviating, ensuring the stability of the bearing operation, reducing the vibration and noise caused by the mispositioning of the roller, and prolonging the service life of the entire bearing system, which has important value in precision equipment with extremely high operation accuracy. Such arrangement of the oil storage groove greatly improves the storage capacity of the lubricating grease. When the bearing is in operation, a large amount of lubricating grease is stored in the oil storage groove, which can continuously and stably provide sufficient lubrication for the roller and the raceway, reducing the friction coefficient between the parts. This not only effectively reduces wear and prevents local overheating caused by insufficient lubrication, but also reduces energy consumption and improves energy utilization efficiency. It is especially suitable for high-speed and heavy-load working conditions, and can effectively avoid bearing failure caused by lubrication failure. The cage structure is simple. The connection mode between the first cage body, the second cage body and the bottom plate is simple and clear, which greatly reduces the complexity of processing, significantly shortens the production cycle and reduces the production cost. In the actual installation process, the roller can be conveniently installed in the corresponding pocket without complex operation process, which provides great convenience for the assembly and later maintenance of the equipment and effectively improves the production and maintenance efficiency.

[0007] As a further setting of the utility model, the first cage body is provided with a first V-shaped groove between adjacent first pockets, and the second cage body is provided with a second V-shaped groove between adjacent second pockets.

[0008] The beneficial effects of such arrangement are: such arrangement, in terms of roller positioning, the first pocket and the second pocket precisely match, and the position of the roller is doubly limited. When the deep groove ball bearing is in operation, the roller can always maintain on the predetermined track under the joint action of the two pockets, avoiding the roller from shifting and deviating, ensuring the stability of the bearing operation, reducing the vibration and noise caused by the mispositioning of the roller, and prolonging the service life of the entire bearing system, which has important value in precision equipment with extremely high operation accuracy. Such arrangement of the oil storage groove greatly improves the storage capacity of the lubricating grease. When the bearing is in operation, a large amount of lubricating grease is stored in the oil storage groove, which can continuously and stably provide sufficient lubrication for the roller and the raceway, reducing the friction coefficient between the parts. This not only effectively reduces wear and prevents local overheating caused by insufficient lubrication, but also reduces energy consumption and improves energy utilization efficiency. It is especially suitable for high-speed and heavy-load working conditions, and can effectively avoid bearing failure caused by lubrication failure. The cage structure is simple. The connection mode between the first cage body, the second cage body and the bottom plate is simple and clear, which greatly reduces the complexity of processing, significantly shortens the production cycle and reduces the production cost. In the actual installation process, the roller can be conveniently installed in the corresponding pocket without complex operation process, which provides great convenience for the assembly and later maintenance of the equipment and effectively improves the production and maintenance efficiency.

[0009] As a further setting of the utility model, the first cage body and the second cage body are both perpendicular to the bottom plate, and the second cage body and the first cage body form a height difference.

[0010] The beneficial effect of such arrangement is that the arrangement improves the convenience of roller installation. During installation, the space formed by the height difference allows the roller to enter the corresponding pocket hole in a smoother manner, reducing the mutual interference between the rollers during installation. Compared with the traditional retainer, the installation time is greatly shortened, the production and assembly efficiency is significantly improved, the labor cost is reduced, and the rhythm of large-scale production is adapted.

[0011] As a further arrangement of the present application, the first frame body is provided with a first limiting flange corresponding to the position of the first pocket hole edge for limiting the roller from leaving the first pocket hole, and the second frame body is provided with a second limiting flange corresponding to the position of the second pocket hole edge for limiting the roller from leaving the second pocket hole.

[0012] The beneficial effect of such arrangement is that the first limiting flange is arranged on the first frame body corresponding to the first pocket hole edge, and the second limiting flange is arranged on the second frame body corresponding to the second pocket hole edge. The double-limiting flange design provides a strong defense line for the position stability of the roller in the pocket hole. When the bearing is running at high speed or bearing complex load, the limiting flange can prevent the roller from accidentally leaving the pocket hole, avoid the problems of component wear, vibration aggravation and the like caused by the mispositioning of the roller, ensure that the bearing always maintains high-precision operation, and greatly prolong the service life of the entire bearing system. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The structure of the embodiment of the present application is shown in the figure.

[0014] Fig. 2 The assembly of the embodiment of the present application in the bearing is shown in the figure. DETAILED DESCRIPTION

[0015] The embodiment of the retainer for deep groove ball bearing of the present application is as follows Figs. 1-2As shown: including the first frame 1 and the second frame 2, the first frame 1 is sleeved outside the second frame 2, the bottom surface of the first frame 1 and the bottom surface of the second frame 2 are connected through the bottom plate 3, the first frame 1, the second frame 2 and the bottom plate 3 combine to form an oil storage groove for accommodating lubricating grease, a plurality of first pockets 11 are arranged on the first frame 1, and the second frame 2 is provided with a plurality of second pockets 21 which are the same in number as the first pockets 11. The beneficial effect of such arrangement is: in terms of roller positioning, the first pockets 11 and the second pockets 21 are precisely matched to double-limit the position of the rollers. When the deep groove ball bearing is running, the rollers can always maintain on the predetermined track under the joint action of the two pockets, avoiding the rollers from shifting and deviating, ensuring the stability of the bearing running, reducing the vibration and noise caused by the misalignment of the rollers, and prolonging the service life of the entire bearing system, which has important value in precision equipment with very high running accuracy. Such an oil storage groove arrangement greatly improves the storage capacity of lubricating grease. When the bearing is working, a large amount of lubricating grease is stored in the oil storage groove, which can continuously and stably provide sufficient lubrication for the rollers and raceways, reduce the friction coefficient between parts. This not only effectively reduces wear and prevents local overheating caused by insufficient lubrication, but also reduces energy consumption and improves energy utilization efficiency. Especially suitable for high-speed and heavy-load working conditions, it can effectively avoid bearing failure caused by lubrication failure. The cage structure is simple. The connection mode between the first frame 1, the second frame 2 and the bottom plate 3 is simple and clear, which greatly reduces the complexity of processing, significantly shortens the production cycle and reduces the production cost. In the actual installation process, the rollers can be conveniently installed into the corresponding pockets without complex operation procedures, which provides great convenience for the assembly and later maintenance of the equipment, effectively improves the production and maintenance efficiency.

[0016] As a further setting of the utility model, the first frame body 1 is provided with a first V-shaped groove 12 between adjacent first pockets 11, and the second frame body 2 is provided with a second V-shaped groove 22 between adjacent second pockets 21. The beneficial effect of such a setting is that the first V-shaped groove is arranged between adjacent first pockets 11 of the first frame body 1, and the second V-shaped groove is arranged between adjacent second pockets 21 of the second frame body 2, which greatly optimizes the performance of the retainer. The use of the V-shaped groove cleverly realizes the lightweight of the overall structure of the retainer. Compared with the traditional retainer, the reduced weight not only reduces the consumption of raw materials, effectively saves the production and processing cost, but also reduces the inertia when the bearing is running, and improves the running efficiency. In order to ensure the use stability of the structure, the groove angle of the V-shaped groove is controlled within 30°, and the groove depth is not more than 2 / 3 of the roller diameter. This precise parameter setting not only reduces the material, but also ensures the overall strength of the retainer. Even under the working condition of high load and long time running, the stable structure form can be maintained, the roller can be continuously and reliably supported, the deformation and damage caused by insufficient structural strength can be avoided, and the service life of the retainer can be prolonged.

[0017] As a further setting of the utility model, the first frame body 1 and the second frame body 2 are both arranged perpendicularly to the bottom plate 3, the second frame body 2 is formed with a height difference from the first frame body 1, and the second frame body 2 is arranged lower than the first frame body 1. The beneficial effect of such a setting is that the convenience of roller installation is improved. During installation, the space formed by the height difference enables the roller to enter the corresponding pocket in a more smooth manner, reducing the mutual interference between the rollers during installation. Compared with the traditional retainer, the installation time is greatly shortened, the production and assembly efficiency is significantly improved, the labor cost is reduced, and the rhythm of large-scale production is adapted.

[0018] As a further setting of the utility model, the first frame body 1 is provided with a first limiting flange 13 corresponding to the edge position of the first pocket 11 for limiting the roller from separating from the first pocket 11, and the second frame body 2 is provided with a second limiting flange 23 corresponding to the edge position of the second pocket 21 for limiting the roller from separating from the second pocket 21. The beneficial effect of such a setting is that the first limiting flange 13 is arranged corresponding to the edge of the first pocket 11 of the first frame body 1, and the second limiting flange 23 is arranged corresponding to the edge of the second pocket 21 of the second frame body 2. The double-limiting flange design builds a defensive line for the position stability of the roller in the pocket. When the bearing is running at high speed or bearing complex load, the limiting flange can prevent the roller from accidentally separating from the pocket, avoid the problems of component wear, vibration intensification and the like caused by the misalignment of the roller, ensure that the bearing always maintains high-precision operation, and greatly prolong the service life of the entire bearing system.

[0019] The above examples are only one of the preferred specific examples of the present application, and the usual changes and replacements made by those skilled in the art within the technical scheme of the present application are included in the protection scope of the present application.

Claims

1. A cage for a deep groove ball bearing, characterized in that: The first frame and the second frame, the first frame is sleeved outside the second frame, the bottom surface of the first frame and the bottom surface of the second frame are connected through the bottom plate, the first frame, the second frame and the bottom plate combine to form an oil storage groove for accommodating lubricating grease, a plurality of first pockets are arranged on the first frame, and the second frame is provided with a number of second pockets which is same as that of the first pockets.

2. A cage for a deep groove ball bearing according to claim 1, characterized in that: The first frame is provided with a first V-shaped groove between adjacent first pockets, and the second frame is provided with a second V-shaped groove between adjacent second pockets.

3. A cage for a deep groove ball bearing according to claim 2, characterized in that: The first frame and the second frame are both arranged perpendicularly to the bottom plate, and the second frame has a height difference with the first frame.

4. A cage for a deep groove ball bearing according to claim 1, characterized in that: The first frame is provided with a first limiting flange corresponding to the edge position of the first pocket for limiting the roller from leaving the first pocket, and the second frame is provided with a second limiting flange corresponding to the edge position of the second pocket for limiting the roller from leaving the second pocket.

Images