V-shaped thrust retainer
The V-shaped limiter and oil channel design solves the problems of insufficient lubrication and frictional heat generation, improves the lubrication effect, reduces friction loss and lubricating oil consumption, and achieves lightweighting and cost reduction.
Patent Information
- Application Number
- CN202422704120.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The retainer structure of existing thrust ball bearings leads to insufficient lubrication, severe frictional heat generation, and the limit portion blocks the flow of lubricating oil, resulting in severe wear.
The V-shaped limiter and oil passage design are adopted. The V-shaped limiter reduces the contact area, the oil passage improves the fluidity of the lubricating oil, and the oil reservoir stores the lubricating oil and directly enters the space between the limiter and the rotating body through the oil passage, reducing frictional heat and lubricating oil consumption.
It improves the lubrication effect, reduces friction loss, reduces processing costs, achieves lightweight and efficient use of lubricating oil, and avoids lubricating oil waste.
Smart Images
Figure CN223469587U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing retainer technical field, concretely relates to a V type thrust retainer. BACKGROUND
[0002] In the existing industrial production equipment or daily necessities, the thrust ball bearing is a common shaft matching part, is the general part of installing various shafts, therefore is more widely used. The thrust ball bearing mainly bears axial load. The thrust ball bearing mainly includes two annular pressing rings, a retainer located between the two pressing rings and a ball installed on the retainer. The retainer of the conventional thrust ball bearing is usually a whole piece structure, and the retainer is provided with circumferentially closed accommodating holes for accommodating the balls. The balls need to be clamped into the accommodating holes along the axial direction of the accommodating holes, so as to complete the installation of the balls and the retainer. Although this structure is beneficial to guarantee the stability of the assembly structure between the balls and the retainer, the contact area between the balls and the circumferentially closed accommodating holes is relatively large, which makes the wear and friction between the balls and the retainer more serious.
[0003] There is also a thrust retainer for installing a rotating body by using a one-side open pocket hole in the prior art. In order to guarantee the stability of the installation of the rotating body, an annular / arc-shaped limiting part is arranged at the end of the pocket hole to limit the rotating body along the axial direction of the pocket hole. However, when the above structure is used, the lubricating oil and / or lubricating grease can only enter between the ball and the accommodating hole through the hole edge of the accommodating hole, which causes the lubrication to be insufficient due to poor flow. Moreover, the arrangement of the limiting part also blocks the flow of the lubricating oil and / or lubricating grease, the friction is serious, the consumption of the lubricating oil and / or lubricating grease is accelerated, and the lubrication is insufficient, which causes the wear of the structure of the rotating body / retainer / bearing outer ring to be serious.
[0004] Therefore, the prior art still has some defects. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a V type thrust retainer to solve at least one of the above technical problems.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a V type thrust retainer, which comprises an annular main body, the annular main body is provided with a pocket hole for installing a rotating body; the pocket hole is provided with a V type limiting part, the V type limiting part extends along the axial direction of the pocket hole, and can limit the movement of the rotating body along the axial direction of the pocket hole; the annular main body also has an oil storage part for accommodating lubricating oil; the V type limiting part has an oil passage, two ends of the oil passage are respectively provided with a first opening in communication with the oil storage part and a second opening in communication with the pocket hole, and the radial cross-sectional area of the first opening is greater than that of the second opening.
[0007] As a preferred embodiment of the present application, the edge of the second opening is further provided with a retaining ring, and the axial height of the retaining ring is not greater than one third of the diameter of the second opening.
[0008] As a preferred embodiment of the present application, the axis of the pocket is the same as that of the annular body; the pocket is provided with a plurality of pockets which are uniformly arranged around the circumference of the annular body; and the pocket is open on the side close to the outside of the annular body along the radial direction of the annular body.
[0009] As a preferred embodiment of the present application, the V-shaped limiting part is arranged at one end or both ends of the pocket along the axial direction of the pocket.
[0010] As a preferred embodiment of the present application, the V-shaped limiting part comprises a first protruding strip and a second protruding strip; the extending directions of the first protruding strip and the second protruding strip are parallel to the tangent direction of the pocket along the plane where the port of the pocket is located; and the extending direction of the first protruding strip is parallel or not parallel to the extending direction of the second protruding strip.
[0011] As a preferred embodiment of the present application, the shortest distance from the first protruding strip and the second protruding strip to the center of the pocket on the side close to the inside of the pocket is less than the radius of the pocket along the radial direction of the pocket.
[0012] As a preferred embodiment of the present application, the inner wall of the pocket is provided with an oil storage groove, and the shape of the inner wall of the oil storage groove is adapted to the shape of the rotating body and there is an oil passing gap between the inner wall of the oil storage groove and the outer wall of the rotating body.
[0013] As a preferred embodiment of the present application, the first protruding strip and the second protruding strip are provided with a limiting surface on the side close to the inside of the pocket, and the plane where the limiting surface is located is tangent to the rotating surface of the rotating body.
[0014] As a preferred embodiment of the present application, the annular body is provided with a plurality of mounting grooves around the circumference of the annular body, and the pocket is arranged in the mounting groove; and the extending distance of the V-shaped limiting part is not more than the groove depth of the mounting groove.
[0015] As a preferred embodiment of the present application, the mounting groove is provided with the oil storage part between the groove wall of the mounting groove and the pocket along the radial direction of the pocket.
[0016] Thanks to the above technical solutions, the present application has the following beneficial effects:
[0017] 1. In the above scheme, the V-shaped limiting part is used instead of the arc-shaped / ring-shaped retaining edge of the transmission structure, which can change the contact mode between the rotating body and the limiting part from surface contact to line contact or even point contact, thereby reducing the contact area, and further reducing the friction loss between the limiting part and the rotating body, reducing friction heat, and reducing lubricating oil consumption. The structure of the V-shaped limiting part is simpler and has lower processing difficulty, which facilitates the reduction of processing cost.
[0018] 2. The setting of the oil passage is beneficial to the lubricating oil stored in the oil storage part directly entering between the V-shaped limiting part, the pocket hole and the rotating body, thereby improving the lubrication effect. At the same time, since the lubricating oil can directly enter the rotating cooperation part between the V-shaped limiting part and the rotating body through the oil passage, compared with the traditional full-filling of lubricating oil, the utilization efficiency of the lubricating oil can be improved, and the waste of lubricating oil can be reduced. In addition, the radial cross-sectional area of the first opening is larger than that of the second opening. With this setting, without affecting the lubricating oil flow, by reducing the radial cross-sectional area of the second opening, the lubricating oil flowing out from between the V-shaped limiting part and the rotating body through the oil passage can be reduced, further avoiding the loss and waste of lubricating oil.
[0019] 3. In the above scheme, the setting of the mounting groove and the single-side opening of the pocket hole are beneficial to realize the weight reduction of the retainer product, thereby facilitating the lightweight of the bearing as a whole, and the setting of the oil storage part is also facilitated. At the same time, it is also beneficial to the collection of lubricating grease at the rotating cooperation part between the rotating body, the retainer and the bearing outer ring, improves the lubrication effect, reduces the friction heat and friction loss. BRIEF DESCRIPTION OF DRAWINGS
[0020] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0021] Figure 1 It is a structural schematic diagram of a V-shaped thrust retainer in an example;
[0022] Figure 2 It is a structural schematic diagram of a single pocket hole in an example.
[0023] List of components and reference numerals:
[0024] 1. Ring-shaped body, 11 mounting groove, 12 oil storage part;
[0025] 2. Pocket hole, 21 retaining ring;
[0026] 31 first protrusion, 32 second protrusion;
[0027] 4 oil passage, 41 first opening, 42 second opening. DETAILED DESCRIPTION
[0028] In order to more clearly illustrate the overall concept of the utility model, the following will be described in detail in an exemplary manner combined with the drawings of the specification.
[0029] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from those described herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.
[0030] As shown in the drawings, the utility model discloses a V type thrust retainer, which comprises a ring body 1 and a plurality of pockets 2 for mounting rotating bodies arranged on the ring body 1. Figures 1-2 As shown in the drawings, the axial direction of the pocket 2 is the same as that of the ring body, and the plurality of pockets 2 are uniformly arranged around the circumferential direction of the ring body; along the radial direction of the ring body, the pocket 2 is open on the side close to the outside of the ring body. Moreover, the pocket 2 in the utility model has a V-shaped limiting part, which can limit the movement of the rotating body along the axial direction of the pocket 2 to prevent the rotating body from separating from the pocket 2; preferably, the ring body in the utility model is also provided with an oil storage part 12, and the V-shaped limiting part is also provided with an oil passage 4, and the oil passage 4 is provided with a first opening 41 and a second opening 42 at both ends and the first opening 41 and the second opening 42 are respectively communicated with the oil storage part 12 and the pocket 2, so as to facilitate the lubricating oil stored in the oil storage part 12 to directly enter the V-shaped limiting part, the pocket 2 and the rotating body, and improve the lubrication effect. At the same time, since the lubricating oil can directly enter the rotating fit part between the V-shaped limiting part and the rotating body through the oil passage 4, compared with the traditional full filling of lubricating oil, the utilization efficiency of lubricating oil can be improved, and the waste of lubricating oil can be reduced. In addition, the radial cross-sectional area of the first opening 41 is greater than that of the second opening 42, and by adopting this arrangement, under the premise of not affecting the flow of lubricating oil, reducing the radial cross-sectional area of the second opening 42 is conducive to reducing the flow of lubricating oil between the V-shaped limiting part and the rotating body through the oil passage 4, and further avoiding the loss and waste of lubricating oil. Figure 1 In the above scheme, the V-shaped limiting part can change the contact mode between the rotating body and the limiting part from surface contact to line contact or even point contact, compared with the traditional arc / ring-shaped stop edge structure, so as to reduce the contact area, and further reduce the friction loss between the limiting part and the rotating body, reduce the friction heat, and reduce the consumption of lubricating oil. Moreover, the structure of the V-shaped limiting part is simpler and has lower processing difficulty, which is conducive to reducing the processing cost.
[0031] Further, referring to the drawings,
[0032] Figure 2 As shown, the edge of the second opening 42 is also provided with a retaining ring 21, and the axial height of the retaining ring 21 is not greater than one third of the diameter of the second opening 42. In a preferred example, the axial height of the retaining ring 21 is one fourth of the diameter of the second opening 42. With this arrangement, the amount of lubricating oil flowing out of the second opening 42 per unit time can be further reduced without affecting the rotation of the rotating body, thereby reducing the amount of lubricating oil lost between the V-shaped limiting portion and the rotating body, and ensuring the lubricating effect.
[0033] In one example, referring to Figure 1 and Figure 2 As shown, the V-shaped limiting portion includes a first protruding strip 31 and a second protruding strip 32, the extension directions of the first protruding strip 31 and the second protruding strip 32 are parallel to the tangential direction of the pocket 2, the extension direction of the first protruding strip 31 is parallel to the extension direction of the second protruding strip 32; and along the radial direction of the pocket 2, the shortest distance from the side of the first protruding strip 31 and the second protruding strip 32 towards the inside of the pocket 2 to the center of the pocket 2 is less than the radius of the pocket 2; the side of the first protruding strip 31 and the second protruding strip 32 towards the inside of the pocket 2 is provided with a limiting surface, and the plane where the limiting surface is located is tangent to the rotating surface of the rotating body. In the above scheme, the parallel arrangement of the first protruding strip 31 and the second protruding strip 32 is more convenient for processing, which is conducive to reducing the processing difficulty and saving processing cost. The shortest distance from the side of the first protruding strip 31 and the second protruding strip 32 towards the inside of the pocket 2 to the center of the pocket 2 being less than the radius of the pocket 2 ensures that the first protruding strip 31 and the second protruding strip 32 have sufficient limiting ability along the axial direction of the pocket 2 to limit the axial movement of the rotating body.
[0034] It should be noted that the above examples are only some preferred examples of the present application, and in another example, the first protruding strip 31 and the second protruding strip 32 are arranged in a staggered manner, i.e. in a V-shaped arrangement. Compared with the parallel arrangement, this arrangement is more convenient for installing the rotating body while ensuring the limiting effect. Of course, the V-shaped limiting portion can also be arranged in other more different ways, which are not limited in the present application.
[0035] It should also be noted that the V-shaped limiting portion in the present application can be arranged at one end of the pocket 2 along the axial direction of the pocket 2, or can be arranged at both ends of the pocket 2, which is also not limited in the present application.
[0036] As a preferred embodiment of the present application, the inner wall of the pocket 2 is provided with an oil storage groove, the shape of the inner wall of the oil storage groove is adapted to the shape of the rotating body, and there is an oil passing gap between the inner wall of the oil storage groove and the outer wall of the rotating body.
[0037] Further, referring to Figure 1As shown, the annular body is provided with a plurality of mounting grooves 11 around the circumference of the annular body, and a pocket 2 is formed in the mounting groove 11; the extension distance of the V-shaped limiting part does not exceed the groove depth of the mounting groove 11; along the radial direction of the pocket 2, the groove wall of the mounting groove 11 and the pocket 2 are provided with an oil storage part 12.
[0038] In the above-mentioned scheme, the setting of the mounting groove 11 and the one-side open setting of the aforementioned pocket 2 are beneficial to realize the weight reduction of the retainer product, and are further beneficial to the lightweight of the whole bearing, and the setting mode is also beneficial to the setting of the oil storage part 12, and is also beneficial to the collection of the lubricating grease at the rotating fit part between the rotating body, the retainer and the bearing outer ring, improves the lubricating effect, reduces the friction heat and the friction loss.
[0039] The technical scheme protected by the utility model is not limited to the above-embodied examples, and it should be pointed out that the combination of the technical scheme of any one embodiment and the technical scheme of one or more other embodiments is within the protection scope of the utility model. Although the utility model has been described in detail in the foregoing by general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model are within the protection scope of the utility model.
Claims
1. A V-type thrust cage characterized in that, The application relates to a rotating body comprising a ring-shaped main body provided with a pocket hole for mounting a rotating body; the pocket hole is provided with a V-shaped limiting part extending along the axial direction of the pocket hole and capable of limiting the axial movement of the rotating body; the ring-shaped main body is also provided with an oil storage part for containing lubricating oil; the V-shaped limiting part is provided with an oil passing channel, two ends of the oil passing channel are respectively provided with a first opening in communication with the oil storage part and a second opening in communication with the pocket hole, and the radial cross-sectional area of the first opening is larger than that of the second opening.
2. The V-type thrust race of claim 1 wherein, The edge of the second opening is further provided with a retaining ring, and the axial height of the retaining ring is not greater than one third of the diameter of the second opening.
3. The V-type thrust race of claim 1 wherein, The axial direction of the pocket hole is the same as that of the ring-shaped main body; the pocket hole is provided with a plurality of pocket holes which are uniformly arranged around the circumferential direction of the ring-shaped main body; along the radial direction of the ring-shaped main body, one side of the pocket hole close to the outside of the ring-shaped main body is open.
4. The V-type thrust race of claim 1 wherein, Along the axial direction of the pocket hole, the V-shaped limiting part is arranged at one end or both ends of the pocket hole.
5. The V-type thrust race of claim 1 wherein, The V-shaped limiting part comprises a first convex strip and a second convex strip; along the plane where the port of the pocket hole is located, the extension directions of the first convex strip and the second convex strip are parallel to the tangent direction of the pocket hole; the extension direction of the first convex strip is parallel or not parallel to the extension direction of the second convex strip.
6. The V-type thrust race of claim 5 wherein, Along the radial direction of the pocket hole, the shortest distance from one side of the first convex strip and the second convex strip towards the inside of the pocket hole to the center of the pocket hole is smaller than the radius of the pocket hole.
7. The V-type thrust race of claim 1 wherein, The inner wall of the pocket hole is provided with an oil storage groove, the shape of the inner wall of the oil storage groove is adapted to the shape of the rotating body, and an oil passing gap exists between the inner wall of the oil storage groove and the outer wall of the rotating body.
8. The V-type thrust race of claim 5 wherein, The first convex strip and the second convex strip are provided with a limiting surface on one side towards the inside of the pocket hole, and the plane where the limiting surface is located is tangent to the rotating surface of the rotating body.
9. The V-type thrust race of claim 1 wherein, Around the circumferential direction of the ring-shaped main body, the ring-shaped main body is provided with a plurality of mounting grooves, the mounting grooves are internally provided with the pocket holes; the extension distance of the V-shaped limiting part is not more than the groove depth of the mounting groove.
10. The V-type thrust race of claim 9 wherein, Along the radial direction of the pocket hole, the groove wall of the mounting groove and the pocket hole are provided with the oil storage part.