High load roller bearing ring

Abstract

The utility model discloses a high bearing's roller bearing ring, include: the outer ring, the inner race, static pressure support mechanism and buffer mechanism, the inner race sets up in the outer ring, the inner side of outer ring and the outside of inner race all are seted up with slide, be equipped with a plurality of cylindrical roller who moves along the slide groove between the outer ring and the inner race, the outside of a plurality of cylindrical roller all sets up with same retainer, the utility model not only can effectively bear partial external load, alleviate the direct contact stress of roller and the metal surface of ring, reduce friction and wear significantly, can continuously provide good lubrication and support effect, and can avoid impact load and directly transmit to the inner race and the shafting component cooperation with it, play the protection function, further promoted the overall bearing capacity of bearing ring and the adaptability to complex working condition, can also reduce the heat production, strengthened the reliability of bearing.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring technology, and in particular to a high load-bearing roller bearing ring. Background Technology

[0002] High-load-bearing roller bearings are key basic components of core main equipment such as metallurgical rolling mills, mining machinery, and heavy engineering equipment. Their performance directly determines the load capacity, operating accuracy, and service life of the entire equipment. During operation, the bearing rings bear extremely high concentrated loads transmitted through the rolling elements, and the raceway surface and subsurface material are under severe conditions of complex alternating contact stress.

[0003] Currently, the mainstream technical approaches to improving the load-bearing capacity of bearing rings in the industry mainly focus on two passive directions: "material strengthening" and "geometric reinforcement." However, to ensure rotational accuracy, the rings must have high rigidity to resist deformation, but in order to homogenize off-center loads, a certain degree of "flexibility" or adaptive adjustment capability is also required. The homogeneous structure of traditional one-piece rings cannot meet these two requirements, resulting in most materials failing to fully realize their load-bearing potential and causing performance waste. In order to further improve load-bearing capacity and increase adaptability, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-load-bearing roller bearing ring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-load-bearing roller bearing race, comprising: Outer ring, inner ring, hydrostatic support mechanism and buffer mechanism; The inner ring is disposed inside the outer ring, and slides are provided on the inner side of the outer ring and the outer side of the inner ring. Multiple cylindrical rollers that move along the slide grooves are provided between the outer ring and the inner ring, and the same retainer is fitted on the outer side of each of the multiple cylindrical rollers. The hydrostatic support mechanism includes multiple microholes, an oil cavity is formed inside the outer ring, the multiple microholes are formed inside the outer ring and are all connected to the oil cavity, and an oil injection hole is formed outside the outer ring and is connected to the oil cavity. The buffer mechanism is located on both sides of the inner ring and is used to absorb impact energy.

[0006] As a further embodiment of this utility model, the buffer mechanism includes two fixed rings, which are fixedly connected to both sides of the inner ring. Multiple spokes are fixedly connected to the outer sides of both fixed rings, and the spokes are evenly distributed radially. One end of each of the multiple spokes on the same side is fixedly connected to a floating ring. Multiple support arms are fixedly connected to the outer sides of both floating rings. Slide grooves for sliding of the support arms are provided on both sides of the outer ring.

[0007] As a further improvement of this utility model, the bottom of each of the multiple support arms is provided with ball bearings, and the ball bearings are located in the groove.

[0008] As a further improvement of this utility model, a bronze lining is provided on one side of the slide rail inside the outer ring.

[0009] As a further embodiment of this invention, the bronze lining has a porous structure, with its pores and micropores connected to form a uniformly permeable damping layer.

[0010] The beneficial effects of this utility model are as follows: 1. By setting a hydrostatic support mechanism, this utility model can form an oil film with a certain rigidity between the roller and the slideway when the bearing ring is running. This effectively bears part of the external load, reduces the direct contact stress between the roller and the metal surface of the ring, significantly reduces friction and wear, and can continuously provide good lubrication and support effects.

[0011] 2. The buffer mechanism in this utility model can drive the floating ring to move when the bearing is subjected to impact load or eccentric load, thereby causing the radially distributed spokes to undergo elastic deformation. The elastic deformation of the spokes can absorb and buffer the impact energy, preventing the impact load from being directly transmitted to the inner ring and the shaft components that cooperate with it, thus playing a protective role and further improving the overall load-bearing capacity of the bearing ring and its adaptability to complex working conditions.

[0012] 3. The bronze liner provided on one side of the inner slide of the outer ring in this utility model can form a damping layer in conjunction with the hydrostatic support mechanism. In addition, it can reduce the coefficient of friction between the roller and the slide, reduce heat generation, and enhance the reliability of the bearing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the elevation structure of a high-load-bearing roller bearing ring proposed in this utility model; Figure 2 This is a partial cross-sectional view of a high-load-bearing roller bearing ring proposed in this utility model. Figure 3 This is a partially exploded structural diagram of a high-load-bearing roller bearing ring proposed in this utility model.

[0014] In the diagram: 1. Outer ring; 2. Floating ring; 3. Support arm; 4. Oil injection hole; 5. Slide groove; 6. Spoke; 7. Inner ring; 8. Fixed ring; 9. Roller; 10. Ball; 11. Cage; 12. Bronze liner; 13. Micropore; 14. Oil cavity; 15. Slide. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1-3 A high-load-bearing roller bearing race, comprising: Outer ring 1, inner ring 7, static pressure support mechanism and buffer mechanism; The inner ring 7 is set inside the outer ring 1. Slides 15 are provided on the inner side of the outer ring 1 and the outer side of the inner ring 7. Multiple cylindrical rollers 9 are provided between the outer ring 1 and the inner ring 7, which move along the groove of the slide 15. The same retainer 11 is fitted on the outer side of the multiple cylindrical rollers 9. The hydrostatic support mechanism includes multiple microholes 13, an oil cavity 14 is provided inside the outer ring 1, the multiple microholes 13 are provided on the inner side of the outer ring 1 and all the multiple microholes 13 are connected to the oil cavity 14, and an oil injection hole 4 is provided on the outer side of the outer ring 1 and is connected to the oil cavity 14. Specifically: When the bearing ring is in working condition, external lubricating oil is injected into the oil cavity 14 through the oil injection hole 4. Under pressure, the lubricating oil in the oil cavity 14 seeps out through multiple micropores 13. Therefore, the seeping lubricating oil can evenly penetrate into the slide 15 and form an oil film with a certain rigidity between the cylindrical roller 9 and the slide 15. That is, the hydrostatic support mechanism realizes the lubrication and support of the cylindrical roller 9 and effectively bears part of the external load. The buffer mechanism is set on both sides of the inner ring 7 to absorb impact energy. The buffer mechanism includes two fixed rings 8, which are fixed to both sides of the inner ring 7 by bolts. Multiple spokes 6 are welded to the outer side of the two fixed rings 8, and the spokes 6 are evenly distributed radially. One end of the multiple spokes 6 on the same side is fixed to a floating ring 2 by bolts. Multiple support arms 3 are welded to the outer side of the two floating rings 2. Slide grooves 5 for the support arms 3 to slide are opened on both sides of the outer ring 1. Specifically, when the bearing is subjected to impact load or eccentric load, the outer ring 1 will have a certain displacement tendency. At this time, the sliding grooves 5 on both sides of the outer ring 1 will generate a thrust or pull on the support arm 3. The support arm 3 drives the floating ring 2 connected to it to move. The movement of the floating ring 2 causes the spokes 6 welded to it to undergo elastic deformation. Since the spokes 6 are evenly distributed radially, their elastic deformation can absorb and buffer the impact energy from multiple directions, preventing the impact load from being directly transmitted to the inner ring 7 and the shaft components that cooperate with it. The bottom of each of the multiple support arms 3 is provided with ball bearings 10, and the ball bearings 10 are located in the groove 5, which can effectively reduce the sliding friction resistance between the support arm 3 and the groove 5. A bronze liner 12 is provided on one side of the slide 15 inside the outer ring 1. The bronze liner 12 has a porous structure, and its pores are connected with micropores 13 to form a uniformly oil-permeable damping layer, which can continuously provide lubrication and suppress vibration during the rolling of the cylindrical roller 9. The porous structure of the bronze liner 12 stores lubricating oil. When the cylindrical roller 9 contacts the slide 15 and moves relative to it, the pressure of the cylindrical roller 9 will cause the bronze liner 12 to undergo slight deformation, causing the lubricating oil in the pores to slowly seep out to the contact surface through the micropores 13.

[0017] Working principle: When the bearing ring is in operation, external lubricating oil is injected into the oil cavity 14 through the oil injection hole 4. Under pressure, the lubricating oil in the oil cavity 14 seeps out through multiple micropores 13. Since the bronze liner 12 on one side of the inner slide rail 15 of the outer ring 1 has a porous structure and its pores are connected to the micropores 13, the seeping lubricating oil can evenly penetrate into the pores of the bronze liner 12, forming an oil film with a certain rigidity between the cylindrical roller 9 and the bronze liner 12. That is, the hydrostatic support mechanism realizes the lubrication and support of the cylindrical roller 9, effectively bearing part of the external load. At the same time, the characteristics of the bronze liner 12 itself reduce the coefficient of friction between the cylindrical roller 9 and the slide rail 15.

[0018] When the bearing is subjected to impact loads or eccentric loads, the outer ring 1 will have a certain displacement tendency. At this time, the grooves 5 on both sides of the outer ring 1 will generate thrust or pull on the support arm 3. The support arm 3 drives the floating ring 2 connected to it to move. The movement of the floating ring 2 causes the spokes 6 welded to it to undergo elastic deformation. Since the spokes 6 are evenly distributed radially, their elastic deformation can absorb and buffer impact energy from multiple directions, preventing the impact load from being directly transmitted to the inner ring 7 and the shaft components that cooperate with it.

[0019] Through the synergistic effect of the aforementioned hydrostatic support mechanism and buffer mechanism, as well as the assistance of the bronze liner 12, the overall load-bearing capacity, impact resistance, and operational reliability of the bearing rings are improved.

[0020] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-load-bearing roller bearing ring, characterized in that, include: Outer ring (1), inner ring (7), static pressure support mechanism and buffer mechanism; The inner ring (7) is disposed inside the outer ring (1). Slides (15) are provided on the inner side of the outer ring (1) and the outer side of the inner ring (7). Multiple cylindrical rollers (9) that move along the groove of the slide (15) are provided between the outer ring (1) and the inner ring (7). The same retainer (11) is fitted on the outer side of the multiple cylindrical rollers (9). The hydrostatic support mechanism includes multiple microholes (13), an oil cavity (14) is provided inside the outer ring (1), the multiple microholes (13) are provided inside the outer ring (1), and the multiple microholes (13) are all connected to the oil cavity (14). An oil injection hole (4) is provided outside the outer ring (1), and the oil injection hole (4) is connected to the oil cavity (14). The buffer mechanism is located on both sides of the inner ring (7) and is used to absorb impact energy.

2. The high-load-bearing roller bearing ring according to claim 1, characterized in that, The buffer mechanism includes two fixed rings (8), which are fixedly connected to both sides of the inner ring (7). Multiple spokes (6) are fixedly connected to the outer sides of the two fixed rings (8), and the spokes (6) are evenly distributed radially. One end of the multiple spokes (6) located on the same side is fixedly connected to a floating ring (2). Multiple support arms (3) are fixedly connected to the outer sides of the two floating rings (2). Slide grooves (5) for sliding of the support arms (3) are provided on both sides of the outer ring (1).

3. A high-load-bearing roller bearing ring according to claim 2, characterized in that, The bottom of each of the multiple support arms (3) is provided with ball bearings (10), and the ball bearings (10) are located in the groove (5).

4. A high-load-bearing roller bearing ring according to claim 3, characterized in that, A bronze lining (12) is provided on one side of the slide (15) inside the outer ring (1).

5. A high-load-bearing roller bearing ring according to claim 4, characterized in that, The bronze lining (12) has a porous structure, and its pores are connected with micropores (13) to form a uniformly oil-permeable damping layer.

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