Bearing roller with self-compensating lubrication structure
Patent Information
- Application Number
- CN202522554857.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-12-02
AI Technical Summary
[0003]现有滚子轴承中，保持架对滚子进行周向分隔定位，内圈与外圈之间填充的润滑脂用于减少滚子与内外圈滚道间的摩擦损耗，但实际运转时，滚子滚动产生的离心力及挤压作用，会使润滑脂逐渐向轴承两侧迁移流失，而轴承缺乏有效的润滑脂辅助补偿结构，导致滚子与滚道摩擦副持续处于润滑不足状态，加剧部件磨损，缩短轴承使用寿命，同时增加设备维护频率与成本，尤其在低速重载等工况下该问题更为突出
1.该带自补偿润滑结构的轴承滚子，通过刮板、斜板一和斜板二之间的配合，使用时刮板能够跟随保持架转动，利用刮板在保持架两侧的圆周转动能够对挤压至保持架边缘位置的润滑脂收集，斜板一和斜板二能够对边缘位置的润滑脂施加向内部的推力，能够将分散的润滑脂向内部挤压重新输送至滚子主体之间，利用通道一和通道二能够对润滑脂进行输送，实现润滑脂自主回收补偿，实现了对轴承内部由于挤压等作用分散的润滑脂进行收集输送的功能，有利于提高长时间工作下的轴承稳定性。
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Figure CN224729948U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing technology, and in particular relates to bearing rollers with self-compensating lubrication structure. Background Technology
[0002] Roller bearings, as the core support component of rotating shafts, are widely used in equipment such as gearboxes and transmission mechanisms. They are usually assembled at both ends of the shaft. Through the synergistic action of the inner ring, outer ring, rollers and cage, the shaft can rotate smoothly and provide stable support, greatly reducing the friction of the shaft operation.
[0003] In existing roller bearings, the cage circumferentially separates and positions the rollers. The grease filling between the inner and outer rings is used to reduce frictional losses between the rollers and the raceways of the inner and outer rings. However, during actual operation, the centrifugal force and squeezing action generated by the rolling of the rollers cause the grease to gradually migrate and be lost to both sides of the bearing. The bearing lacks an effective grease-assisted compensation structure, resulting in the roller-raceway friction pair being in a state of insufficient lubrication. This exacerbates component wear, shortens the bearing's service life, and increases the frequency and cost of equipment maintenance. This problem is particularly prominent under low-speed and heavy-load conditions.
[0004] In view of this, we propose bearing rollers with a self-compensating lubrication structure. Utility Model Content
[0005] The purpose of this invention is to provide bearing rollers with a self-compensating lubrication structure to solve the problems mentioned in the background art.
[0006] In view of this, the present invention provides a bearing roller with a self-compensating lubrication structure, including an outer ring and an inner ring, wherein a cage is installed between the outer ring and the inner ring, and the roller body is installed inside the cage; A pin is fixedly installed on the outer surface of the retainer, a scraper is slidably connected to the outer surface of the pin, a first inclined plate is fixedly installed on the front and rear edges of the scraper, a second inclined plate is fixedly installed on the upper and lower edges of the scraper, and a baffle is fixedly installed on one end of the pin. The outer ring and the inner ring are respectively provided with groove 1 and groove 2 inside. The outer ring is provided with channel 1 inside. The inner ring is provided with channel 2 inside. The outer ring is provided with oil drain groove 1 inside. The inner ring is provided with oil drain groove 2 inside.
[0007] In this technical solution, the scraper can be fixed by the pin and the baffle. At this time, the scraper, the first inclined plate and the second inclined plate will rotate with the cage. When the bearing is running, the grease inside will move to both sides under the action of centrifugal force or the squeezing of the roller body. At this time, the spaced inclined plates first and second will collect and squeeze the grease on both sides. Part of the grease enters from both sides of the roller body for re-lubrication, and the other part enters the top and bottom of the roller body through channels one and two respectively, realizing recycling.
[0008] In the above technical solution, a sealing cap is further installed between the outer ring and the inner ring, and grease is filled between the outer ring and the inner ring.
[0009] In this technical solution, the sealing cover can seal both ends of the bearing, and the scraper can be used to collect and process the materials for better results.
[0010] In the above technical solution, a guide plate is further fixedly installed on the outer surface of the pin, the outer surface of the guide plate is slidably connected to the inside of the scraper, and one side of the scraper contacts one side of the baffle.
[0011] In this technical solution, the guide plate can limit the position of the scraper and always keep the scraper in a vertical state.
[0012] In the above technical solution, the first inclined plate is symmetrically arranged at the front and rear positions of the scraper, and the second inclined plate is symmetrically arranged at the top and bottom positions of the scraper. Both the first inclined plate and the second inclined plate are inclined inward towards the scraper.
[0013] In this technical solution, inclined plate one and inclined plate two can push the grease and assist the movement of the grease.
[0014] In the above technical solution, furthermore, there is an installation gap between the outer surface of the upper and lower inclined plates and the inner wall of the outer and inner rings, the installation gap is set to 1 mm, and the scraper rotates outside the retainer.
[0015] In this technical solution, the inclined plate 2 can push the grease and control some of the grease to enter the interior of groove 1 and groove 2.
[0016] In the above technical solution, further, the first groove and the first oil drain groove are connected through the first channel, the first oil drain groove is located at the top of the roller body, and the first groove is distributed on both sides of the cage.
[0017] In this technical solution, the grease can enter from the inside of the groove one, pass through the channel one, and be discharged in the oil drain groove one.
[0018] In the above technical solution, the second groove and the second oil drain groove are connected through the second channel, and the second oil drain groove is located at the bottom of the roller body.
[0019] In this technical solution, the grease inside the inner ring enters through groove two and enters the bottom of the roller body through oil drain groove two.
[0020] The beneficial effects of this utility model are: 1. This bearing roller with a self-compensating lubrication structure, through the cooperation of a scraper, inclined plate one, and inclined plate two, allows the scraper to rotate with the cage during use. The circumferential rotation of the scraper on both sides of the cage collects the grease squeezed to the edge of the cage. Inclined plates one and two apply an inward thrust to the grease at the edge, squeezing the dispersed grease inward and re-delivering it between the roller bodies. Channels one and two transport the grease, achieving self-compensation and collection of grease. This function collects and transports the grease dispersed inside the bearing due to compression and other effects, which is beneficial to improving the stability of the bearing under long-term operation.
[0021] 2. This bearing roller with a self-compensating lubrication structure, by setting up components such as guide plates, can limit the scraper when it is installed outside the pin shaft. At this time, the scraper will not rotate outside the pin shaft and will always remain perpendicular to the cage, making the whole machine more stable during use. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the disassembled cage structure in this utility model; Figure 4 This is a schematic diagram of the scraper component structure in this utility model; Figure 5 This is a schematic diagram of the outer and inner rings of this utility model.
[0023] The markings in the diagram are as follows: 1. Outer ring; 2. Inner ring; 3. Cage; 4. Roller body; 5. Pin; 6. Scraper; 7. Inclined plate one; 8. Inclined plate two; 9. Baffle; 10. Groove one; 11. Groove two; 12. Channel one; 13. Channel two; 14. Oil drain groove one; 15. Oil drain groove two; 16. Sealing cap; 17. Guide plate. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.
[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0026] Example 1: This example provides a bearing roller with a self-compensating lubrication structure, including an outer ring 1 and an inner ring 2, a cage 3 is installed between the outer ring 1 and the inner ring 2, and a roller body 4 is installed inside the cage 3; A pin 5 is fixedly installed on the outer surface of the retainer 3. A scraper 6 is slidably connected to the outer surface of the pin 5. An inclined plate 7 is fixedly installed on the front and rear edges of the scraper 6. An inclined plate 8 is fixedly installed on the upper and lower edges of the scraper 6. A baffle 9 is fixedly installed on one end of the pin 5. The outer ring 1 and the inner ring 2 are respectively provided with groove 10 and groove 2 11. The outer ring 1 is provided with channel 12 and the inner ring 2 is provided with channel 2 13. The outer ring 1 is provided with oil drain groove 14 and the inner ring 2 is provided with oil drain groove 2 15.
[0027] The scraper 6 can be fixed by the pin 5 and the baffle 9. At this time, the scraper 6, the first inclined plate 7 and the second inclined plate 8 will rotate with the cage 3. When the bearing is running, the grease inside will move to both sides under the action of centrifugal force or the squeezing of the roller body 4. At this time, the inclined plates 7 and 8 arranged at intervals will collect and squeeze the grease on both sides. Part of the grease enters from both sides of the roller body 4 for re-lubrication, and the other part enters the top and bottom of the roller body 4 through the first channel 12 and the second channel 13 respectively, so as to realize recycling. The scraper 6 is directly installed on the outside of the pin 5 and can rotate with the cage 3. Since the scraper 6 is fixed on the outside of the cage 3, the grease that moves to both sides of the cage 3 will be collected and squeezed by the rotating scraper 6. Some of the grease will enter directly from both sides of the cage 3, and the other part of the grease will enter through the groove 10 and groove 21 under the squeezing action. Under the continuous pushing of the centrifugal force and the squeezing action, the grease will move inside the channel 12 and channel 23, and then be discharged through the oil drain groove 14 and oil drain groove 25. This part of the grease will lubricate the top and bottom of the roller body 4, which prolongs the continuous lubrication effect of the bearing during the overall operation and makes it more stable during use.
[0028] Example 2: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: a sealing cap 16 is installed between the outer ring 1 and the inner ring 2, and grease is filled between the outer ring 1 and the inner ring 2.
[0029] Among them, the sealing cover 16 can seal both ends of the bearing, and the scraper 6 can be used to collect and process the materials better. The sealing cap 16 is made of a highly elastic rubber material, which can reduce the entry of external dust and the leakage of internal grease after installation.
[0030] Example 3: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: a guide plate 17 is fixedly installed on the outer surface of the pin 5, the outer surface of the guide plate 17 is slidably connected to the inside of the scraper 6, and one side of the scraper 6 is in contact with one side of the baffle 9.
[0031] Among them, the guide plate 17 can limit the position of the scraper 6 and always keep the scraper 6 in a vertical state; The installation direction of the guide plate 17 can be controlled by the guide plate 17. When the scraper 6 is installed outside the pin 5, it is perpendicular to the retainer 3. Then, the baffle 9 can block and limit one side of the scraper 6.
[0032] Example 4: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: the first inclined plate 7 is symmetrically arranged in the front and rear positions of the scraper 6, the second inclined plate 8 is symmetrically arranged in the upper and lower positions of the scraper 6, and both the first inclined plate 7 and the second inclined plate 8 are inclined inward towards the scraper 6.
[0033] Among them, inclined plate 7 and inclined plate 8 can push the grease and assist the movement of the grease; Since both sloping plates 7 and 8 are inclined inward, when they come into contact with the grease on both sides, they will squeeze and guide the grease, and apply a tilting pushing force to the grease. The tilt angle between the two plates is between 30° and 60°. At this time, the grease will move towards the roller body 4, and the movement direction of the grease can be controlled.
[0034] Example 5: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: there is an installation gap between the outer surface of the upper and lower inclined plates 8 and the inner wall of the outer ring 1 and the inner ring 2. The installation gap is set to 1 mm. The scraper 6 rotates outside the cage 3.
[0035] Among them, the inclined plate 8 can push the grease and control some of the grease to enter the interior of the groove 10 and the groove 21; The inclined plate 8 can push the grease on the inner wall of the outer ring 1 and the inner ring 2. Since the grease inside the bearing moves continuously to both sides when the bearing rotates, the pushing force of the inclined plate 8 can apply a pushing force to the grease. At this time, some grease enters the interior of the groove 10 and the groove 21 and moves inside the groove 1 and the groove 2 under continuous compression. Then the grease will be squeezed out inside the drain groove 14 and the drain groove 25. Then the grease is squeezed out from the top and bottom of the roller body 4. In this way, the roller body 4 is always lubricated by the grease when it rotates.
[0036] Example 6: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: the groove 10 and the oil drain groove 14 are connected by the channel 12. The oil drain groove 14 is located on the top of the roller body 4, and the groove 10 is distributed on both sides of the cage 3.
[0037] The grease can enter through the inside of the groove 10, pass through the channel 12 and be discharged in the oil drain groove 14; The grease inside the outer ring 1 is squeezed into the groove 10 by the second inclined plate 8. At this time, the grease moves inside the channel 12 and flows out inside the oil drain groove 14 to lubricate the top of the roller body 4.
[0038] Example 7: This example provides a bearing roller with a self-compensating lubrication structure. In addition to the technical solutions of the above examples, it also has the following technical features: the groove 2 11 and the oil drain groove 2 15 are connected by the channel 2 13, and the oil drain groove 2 15 is located at the bottom of the roller body 4.
[0039] Among them, the grease inside the inner ring 2 enters through the groove 11 and enters the bottom of the roller body 4 through the oil drain groove 15; The grease inside the inner ring 2 is squeezed by the inclined plate 2 8 and enters the groove 2 11. Then the grease moves inside the channel 2 13 and enters the bottom of the roller body 4 through the oil drain groove 2 15, thus achieving the effect of lubricating the bottom of the roller body 4.
[0040] Working principle: A scraper 6 is installed on the outside of the pin 5. Under the action of the guide plate 17, the scraper 6 is perpendicular to the cage 3. At this time, the grease under the action of centrifugal force moves to both sides of the cage 3. The scraper 6 can rotate with the cage 3. Then, the inclined plate 1 7 and the inclined plate 2 8 can apply extrusion pressure to the grease. Some of the grease enters from both sides of the cage 3 under the extrusion pressure, and some of the grease enters from the groove 1 10 and the groove 2 11. After flowing inside the channel 1 12 and the channel 2 13, it flows out outside the oil drain groove 1 14 and the oil drain groove 2 15, which can continuously lubricate the top and bottom of the roller body 4.
[0041] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A bearing roller with a self-compensating lubrication structure, comprising an outer ring (1) and an inner ring (2), characterized in that, A retainer (3) is installed between the outer ring (1) and the inner ring (2), and a roller body (4) is installed inside the retainer (3). A pin (5) is fixedly installed on the outer surface of the retainer (3), a scraper (6) is slidably connected to the outer surface of the pin (5), a first inclined plate (7) is fixedly installed on the front and rear edges of the scraper (6), a second inclined plate (8) is fixedly installed on the upper and lower edges of the scraper (6), and a baffle (9) is fixedly installed at one end of the pin (5). The outer ring (1) and the inner ring (2) are respectively provided with groove one (10) and groove two (11). The outer ring (1) is provided with channel one (12) and the inner ring (2) is provided with channel two (13). The outer ring (1) is provided with oil drain groove one (14) and the inner ring (2) is provided with oil drain groove two (15).
2. The bearing roller with self-compensating lubrication structure according to claim 1, characterized in that, A sealing cap (16) is installed between the outer ring (1) and the inner ring (2), and grease is filled between the outer ring (1) and the inner ring (2).
3. The bearing roller with self-compensating lubrication structure according to claim 1, characterized in that, A guide plate (17) is fixedly installed on the outer surface of the pin (5). The outer surface of the guide plate (17) is slidably connected to the inside of the scraper (6). One side of the scraper (6) is in contact with one side of the baffle (9).
4. The bearing roller with a self-compensating lubrication structure according to claim 1, characterized in that, The first inclined plate (7) is symmetrically arranged at the front and rear positions of the scraper (6), and the second inclined plate (8) is symmetrically arranged at the top and bottom positions of the scraper (6). Both the first inclined plate (7) and the second inclined plate (8) are inclined towards the inside of the scraper (6).
5. The bearing roller with a self-compensating lubrication structure according to claim 1, characterized in that, There is an installation gap between the outer surface of the upper and lower inclined plates (8) and the inner wall of the outer ring (1) and inner ring (2), and the installation gap is set to 1 mm. The scraper (6) rotates outside the retainer (3).
6. The bearing roller with a self-compensating lubrication structure according to claim 1, characterized in that, The first groove (10) and the first oil drain groove (14) are connected through the first channel (12). The first oil drain groove (14) is located on the top of the roller body (4), and the first groove (10) is distributed on both sides of the cage (3).
7. The bearing roller with self-compensating lubrication structure according to claim 1, characterized in that, The groove 2 (11) and the oil drain groove 2 (15) are connected by the channel 2 (13), and the oil drain groove 2 (15) is located at the bottom of the roller body (4).