High-stability full complement ball bearing structure
The interlocking mechanism and sealing design solve the problem of full-complement ball bearings easily getting stuck or falling off under low speed and heavy load, achieve high stability and sealing of the bearings, and ensure the continuous and efficient operation of the bearings.
Patent Information
- Application Number
- CN202423254336.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Existing full complement ball bearings are prone to seizure or rolling element fall-off under low-speed and heavy-load conditions, and lack sealing performance, leading to the ingress of external impurities and lubricating oil leakage, affecting bearing stability and performance.
The design of the interlocking mechanism, bearing cover and sealing strip ensures that the rolling element is stably interlocked between the inner and outer rings of the bearing. The sealing strip prevents the entry of external impurities, and the cover prevents the leakage of lubricating oil, forming a closed space.
It improves the stability and sealing of full-complement ball bearings, prevents rolling elements from getting stuck or falling off, ensures continuous and efficient operation of the bearings, avoids leakage of external impurities and lubricating oil, and improves the overall performance of the bearings.
Smart Images
Figure CN223411283U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of full-complement ball bearings, and in particular relates to a high-stability full-complement ball bearing structure. Background Art
[0002] Currently, full-complement ball bearings are often used in some low-speed, heavy-load applications to improve load capacity, but ring fit has become a problem. The existing method for fitting full-complement ball bearings is to create an inclined, arc-shaped notch in the ring's groove, extending to the end face. When installing the rolling balls, the two arc-shaped grooves in the outer and inner rings are aligned to increase the installation space for the rolling elements and facilitate ball filling. However, this notched ring is difficult to process and is sensitive to axial forces. Another design uses a cracked outer ring structure. The crack is formed by cutting the bearing outer ring with molybdenum wire and then pressing it to form a radially penetrating gap. This gap opens the bearing outer ring to facilitate ball filling.
[0003] However, the above-mentioned bearings are all open bearings, which do not have sealing properties, which may cause external impurities to enter the full-complement ball bearings, increase the friction of the rolling elements, and affect the performance of the bearings; and bearings with open structures are prone to getting stuck or causing the rolling elements to fall outward when subjected to axial forces, and have low stability, which may cause damage to the bearings and affect their normal use. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-stability full-complement ball bearing structure. This high-stability full-complement ball bearing structure can effectively prevent the rolling elements from getting stuck or falling off, thereby improving the stability of the full-complement ball bearing. In addition, by adopting this structure, the bearing cover can be tightly installed on both sides of the bearing, and the sealing strip can ensure the sealing inside the bearing, thereby effectively preventing external impurities from entering the bearing and preventing the lubricating oil inside the bearing from leaking, so as to ensure that the bearing can continue to operate stably and efficiently, greatly improving the performance of the full-complement ball bearing.
[0005] A high-stability full-complement ball bearing structure, comprising a bearing outer ring, a bearing inner ring and rolling elements, wherein the rolling elements are rollingly arranged between the bearing outer ring and the bearing inner ring, a through groove for installing the rolling elements is provided in the middle of the bearing inner ring, a slot is provided on the side of the bearing inner ring and the slot is connected to the inside of the through groove, a side plate of the bearing inner ring is provided with the same diameter as the bearing inner ring, and a fitting mechanism that is compatible with the through groove and the slot is fixedly connected to the side of the side plate close to the bearing inner ring, inner grooves are provided on both sides of the bearing outer ring and on the side where the bearing inner ring and the side plate are away from each other, bearing covers are fixedly connected to the inner grooves on both sides of the bearing outer ring, and sealing strips are provided on the side where the two bearing covers are close to each other and close to the center of the circle.
[0006] Preferably, the inner circumference of the bearing outer ring and the outer circumference of the bearing inner ring are both provided with arc-shaped raceways adapted to the rolling elements, and the number of the rolling elements is several and the several rolling elements are all in contact with each other and rollingly arranged inside the arc-shaped raceways.
[0007] Preferably, a first fixing bolt is threaded through the side surface of the side plate, and the first fixing bolt passes through one end of the side plate and is threadedly connected to the inner ring of the bearing. The number of the first fixing bolts is seven and the seven first fixing bolts are threaded through the side surface of the side plate in the form of a circular array.
[0008] Preferably, the interlocking mechanism includes a transition block and an annular insert plate that can be engaged with the through groove, the transition block is fixedly connected to the side of the side plate close to the inner ring of the bearing, the transition block is engaged inside the through groove and its surface can be flush with the arc raceway of the outer circumference of the inner ring of the bearing, the annular insert plate is fixedly connected to the side of the side plate close to the inner ring of the bearing and fixedly connected to the outside of the transition block, the annular insert plate is adapted to the slot and inserted into the inside of the slot.
[0009] Preferably, a second fixing bolt is threaded through a portion of the side surface of the bearing cover away from the center of the circle, and the number of the second fixing bolts is four. The four second fixing bolts are threaded through the side surface of the bearing cover in the form of a circular array and are threadedly connected to the inner groove of the bearing outer ring. The two bearing covers are symmetrically arranged with the vertical center line of the bearing outer ring as the axis of symmetry.
[0010] Preferably, the sealing strip is bonded to the side of the bearing cover close to the bearing inner ring, the inner diameter of the side plate is the same as the inner diameter of the bearing inner ring, the inner diameter of the bearing cover is slightly larger than the outer diameter of the end of the bearing inner ring, and the sealing strips on both sides are respectively embedded in the inner grooves on the side away from each other of the bearing inner ring and the side plate and fit with the vertical planes in the inner grooves of the bearing inner ring and the side plate.
[0011] The beneficial effects of the above technical solution are:
[0012] The high-stability full-fill ball bearing structure is provided with a fitting mechanism, a bearing cover and a sealing strip. When assembling the full-fill ball bearing, the rolling element can be passed through the groove and assembled between the outer ring and the inner ring of the bearing. The last rolling element is placed on top of the fitting mechanism and the fitting mechanism is pushed into the groove. The side plate is then fixed to the inner ring of the bearing, so that the rolling element can be stably fitted between the outer ring and the inner ring of the bearing. No gaps are provided on the inner ring of the bearing and on both sides of the outer ring of the bearing, which can effectively prevent the rolling element from getting stuck or falling off, thereby improving the stability of the full-fill ball bearing. In addition, with this structure, the bearing cover can be tightly installed on both sides of the bearing. The sealing strip can ensure the sealing of the bearing interior, thereby effectively preventing external impurities from entering the bearing interior and preventing the lubricating oil inside the bearing from leaking, so as to ensure that the bearing can operate continuously, stably and efficiently, greatly improving the performance of the full-fill ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall disassembly state of the utility model;
[0014] Figure 2 This is a schematic diagram of the disassembled state of the bearing cover of the utility model;
[0015] Figure 3 This is a schematic diagram of the disassembled state of the bearing inner ring and the interlocking mechanism of the utility model;
[0016] Figure 4 This is a schematic diagram of the cross-section of the utility model;
[0017] Figure 5 This is a schematic diagram of the bearing inner ring and the interlocking mechanism of the utility model;
[0018] Figure 6 It is a schematic diagram of the overall structure of the utility model.
[0019] In the figure: 1. Bearing outer ring; 2. Bearing inner ring; 3. Rolling element; 4. Groove; 5. Slot; 6. Side plate; 7. Inner groove; 8. Bearing cover; 9. Sealing strip; 10. Arc raceway; 11. First fixing bolt; 12. Transition block; 13. Annular insert; 14. Second fixing bolt. DETAILED DESCRIPTION
[0020] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 6 The embodiments are described in detail.
[0021] This embodiment provides a high stability full complement ball bearing structure, as shown in the attached Figure 1-6As shown, it includes a bearing outer ring 1, a bearing inner ring 2 and rolling elements 3. The rolling elements 3 are rollingly arranged between the bearing outer ring 1 and the bearing inner ring 2. The inner circumference of the bearing outer ring 1 and the outer circumference of the bearing inner ring 2 are both provided with arc-shaped raceways 10 adapted to the rolling elements 3. There are several rolling elements 3 and the several rolling elements 3 are all in contact with each other and rollingly arranged inside the arc-shaped raceways 10. The inner circumference of the bearing outer ring 1 and the outer circumference of the bearing inner ring 2 and the outside of the several rolling elements 3 are all coated with lubricating oil, which can reduce the friction force on the rolling elements 3 when rolling and improve the performance of the bearing.
[0022] A through groove 4 for installing the rolling element 3 is provided in the middle of the bearing inner ring 2, a slot 5 is provided on the side of the bearing inner ring 2, and the slot 5 is connected to the inside of the through groove 4. A side plate 6 with the same diameter as the bearing inner ring 2 is provided on one side of the bearing inner ring 2, and a first fixing bolt 11 is threaded through the side of the side plate 6. The first fixing bolt 11 passes through one end of the side plate 6 and is threadedly connected to the bearing inner ring 2. There are seven first fixing bolts 11, and the seven first fixing bolts 11 are all threaded through the side of the side plate 6 in the form of a circular array. The side plate 6 can be firmly fixed to one side of the bearing inner ring 2 through the first fixing bolt 11.
[0023] The side plate 6 is fixedly connected to the side near the inner ring 2 of the bearing with an interlocking mechanism adapted to the through groove 4 and the slot 5. The interlocking mechanism includes a transition block 12 and an annular insert plate 13 that can be engaged with the through groove 4. The transition block 12 is fixedly connected to the side of the side plate 6 near the inner ring 2 of the bearing. The transition block 12 is engaged in the inside of the through groove 4 and its surface can be flush with the arc raceway 10 on the outer circumference of the inner ring 2 of the bearing. After the transition block 12 is engaged in the through groove 4, the outer circumference of the inner ring 2 of the bearing can form a smooth arc raceway 10, ensuring that the rolling element 3 can roll smoothly in the arc raceway 10; the annular insert plate 13 is fixedly connected to the side of the side plate 6 near the inner ring 2 of the bearing and is fixedly connected to the outside of the transition block 12. The annular insert plate 13 is adapted to the slot 5 and inserted into the inside of the slot 5, which can support and position the transition block 12, support the transition block 12 more firmly, and ensure that the position of the transition block 12 remains fixed after it is inserted into the through groove 4.
[0024] Inner grooves 7 are provided on both sides of the bearing outer ring 1 and on the side where the bearing inner ring 2 and the side plate 6 are away from each other. Bearing covers 8 are fixedly connected to the inner grooves 7 on both sides of the bearing outer ring 1. Second fixing bolts 14 are threaded through the part of the side of the bearing cover 8 away from the center of the circle, and there are four second fixing bolts 14. The four second fixing bolts 14 are threaded through the side of the bearing cover 8 in the form of a circular array and are threaded into the inner groove 7 of the bearing outer ring 1, which can fix the bearing cover 8 in the inner groove 7. The two bearing covers 8 are respectively in the same plane with the two end surfaces of the bearing outer ring 1, and the two bearing covers 8 are symmetrically arranged with the vertical center line of the bearing outer ring 1 as the symmetry axis.
[0025] A sealing strip 9 is provided on the side of the two bearing covers 8 close to each other and close to the center of the circle. The sealing strip 9 is bonded to the side of the bearing cover 8 close to the bearing inner ring 2. The inner diameter of the side plate 6 is the same as the inner diameter of the bearing inner ring 2. The inner diameter of the bearing cover 8 is slightly larger than the outer diameter of the end of the bearing inner ring 2. After the bearing cover 8 is fixedly installed on both sides of the bearing outer ring 1 by the second fixing bolt 14, the circular hole in the center of the bearing cover 8 is sleeved on the end of the bearing inner ring 2 and does not contact the bearing inner ring 2. The sealing strips 9 on both sides are respectively embedded in the bearing inner ring 2 and the side plate 6. The plates 6 are in the inner groove 7 on the side away from each other and fit with the vertical plane of the inner groove 7 on the bearing inner ring 2 and the side plate 6. The sealing strips 9 on both sides fit into the inner groove 7 on both sides of the bearing inner ring 2, and the bearing cover 8 is fixedly connected to the inner groove 7 on both sides of the bearing outer ring 1, so that the outer ring 1 and the inner ring 2 of the bearing can be completely sealed, and a closed space can be formed inside the bearing to prevent the lubricating oil inside the bearing from leaking, and to prevent external dust and other impurities from entering the bearing and affecting the rolling of the rolling element 3, thereby ensuring that the bearing has good performance.
[0026] In summary, the steps for using this high-stability full complement ball bearing structure are as follows:
[0027] 1. First, separate the fitting mechanism from the bearing inner ring 2, fit the bearing inner ring 2 and the bearing outer ring 1 together, and then sequentially insert multiple rolling elements 3 from the inside of the bearing inner ring 2 through the grooves 4 and place them into the arc-shaped raceway 10 between the bearing outer rings 1 and 2.
[0028] 2. Make each rolling element 3 abut against each other in the curved raceway 10. When placing the rolling element 3, apply lubricating oil to the inside and outside of the curved raceway 10 to ensure sufficient lubrication and reduce friction. When the last rolling element 3 needs to be placed, place the rolling element 3 in the curved raceway 10 on the transition block 12, push the transition block 12 horizontally into the through groove 4, and simultaneously insert the annular insert plate 13 into the slot 5. Fasten the side plate 6 to the side of the bearing inner ring 2 with the first fixing bolt 11, thereby confining the multiple rolling elements 3 in the curved raceway 10 between the bearing outer ring 1 and the bearing inner ring 2.
[0029] 3. Then, the bearing covers 8 on both sides are fixedly installed in the inner grooves 7 on both sides of the bearing outer ring 1 by the second fixing bolts 14. This can seal the space between the bearing inner ring 2 and the bearing outer ring 1, effectively preventing lubricating oil from leaking or foreign matter from entering the interior and affecting the performance of the bearing.
[0030] The above description is only for the purpose of illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the scope of protection of the present invention.
Claims
1. A high-stability full-complement ball bearing structure, comprising a bearing outer ring (1), a bearing inner ring (2) and rolling elements (3), characterized in that: The rolling element (3) is arranged to roll between the bearing outer ring (1) and the bearing inner ring (2), the middle of the bearing inner ring (2) is provided with a through groove (4) for installing the rolling element (3), the side of the bearing inner ring (2) is provided with a slot (5) and the slot (5) is communicated with the inside of the through groove (4), one side of the bearing inner ring (2) is provided with a side plate (6) with the same diameter as the bearing inner ring, and the side of the side plate (6) close to the bearing inner ring (2) is fixedly connected with a fitting mechanism that is compatible with the through groove (4) and the slot (5), both sides of the bearing outer ring (1) and the side where the bearing inner ring (2) and the side plate (6) are away from each other are provided with inner grooves (7), the inner grooves (7) on both sides of the bearing outer ring (1) are fixedly connected with bearing covers (8), and the two bearing covers (8) are provided with sealing strips (9) at the side close to each other and close to the center of the circle.
2. A high-stability full complement ball bearing structure according to claim 1, characterized in that: The inner circumferential surface of the bearing outer ring (1) and the outer circumferential surface of the bearing inner ring (2) are both provided with arc-shaped raceways (10) adapted to the rolling elements (3). The number of the rolling elements (3) is several, and the several rolling elements (3) are all in contact with each other and are arranged to roll inside the arc-shaped raceways (10).
3. A high-stability full complement ball bearing structure according to claim 1, characterized in that: A first fixing bolt (11) is threadedly passed through the side surface of the side plate (6), and one end of the first fixing bolt (11) passes through the side plate (6) and is threadedly connected to the bearing inner ring (2). The number of the first fixing bolts (11) is seven, and the seven first fixing bolts (11) are threadedly passed through the side surface of the side plate (6) in the form of a circular array.
4. A high-stability full complement ball bearing structure according to claim 2, characterized in that: The interlocking mechanism comprises a transition block (12) and an annular insert plate (13) that can be interlocked with the through groove (4); the transition block (12) is fixedly connected to a side of the side plate (6) close to the bearing inner ring (2); the transition block (12) is interlocked inside the through groove (4) and its surface can be flush with the arc raceway (10) on the outer peripheral surface of the bearing inner ring (2); the annular insert plate (13) is fixedly connected to a side of the side plate (6) close to the bearing inner ring (2) and fixedly connected to the outside of the transition block (12); the annular insert plate (13) is adapted to the slot (5) and inserted into the inside of the slot (5).
5. The high-stability full complement ball bearing structure according to claim 1, characterized in that: A second fixing bolt (14) is threadedly provided on a portion of the side of the bearing cover (8) away from the center of the circle, and the number of the second fixing bolts (14) is four. The four second fixing bolts (14) are threadedly provided through the side of the bearing cover (8) in the form of a circular array and are threadedly connected to the inner groove (7) of the bearing outer ring (1). The two bearing covers (8) are symmetrically arranged with the vertical center line of the bearing outer ring (1) as the symmetry axis.
6. A high-stability full complement ball bearing structure according to claim 1, characterized in that: The sealing strip (9) is bonded to the side of the bearing cover (8) close to the bearing inner ring (2), the inner diameter of the side plate (6) is the same as the inner diameter of the bearing inner ring (2), the inner diameter of the bearing cover (8) is slightly larger than the outer diameter of the end of the bearing inner ring (2), and the sealing strips (9) on both sides are respectively embedded in the inner groove (7) on the side away from each other of the bearing inner ring (2) and the side plate (6) and fit with the vertical plane in the inner groove (7) on the bearing inner ring (2) and the side plate (6).