A bearing with a widening inner ring

Abstract

The utility model discloses a bearing of inner race can widen relates to bearing field, and its technical scheme main points are: including inner race and outer ring, the one side of inner race is provided with sliding slot, is equipped with the mounting block in the sliding slot, the one side of mounting block is provided with mounting hole, and the detachable connection of inner race has widened ring, and the one side of widened ring is equipped with the installation groove, and the outer peripheral wall of widened ring is provided with the perforation, and the outer peripheral wall of inner race is provided with the limit hole, and is equipped with fixed bolt in limit hole. When bearing needs to bear higher axial load, people will slide out mounting block from sliding slot, and will one side of widened ring and inner race abut after again, will fixed bolt pass through perforation and is connected in mounting hole with screw thread, make widened ring and inner race fixed connection, thereby increased the contact area between inner race and shaft shoulder, improved the load capacity of bearing axial, and inner race, outer ring and widened ring all adopt high carbon chromium steel and are made, guarantee the strength of bearing whole.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and more specifically, to a bearing with an enlarged inner ring. Background Technology

[0002] Bearings are components in mechanical systems that support rotational or linear motion. They reduce frictional resistance between moving parts through rolling or sliding contact.

[0003] Bearings consist of an inner ring, an outer ring, and balls located between the inner and outer rings. Generally, the widths of the inner and outer rings are equal. When a bearing needs to withstand a unidirectional high-strength axial load, a wider inner ring design can increase the contact area with the shaft shoulder, disperse the axial force, and avoid local stress concentration on the shaft shoulder. However, the width of the inner ring of existing bearings is fixed and cannot be changed according to requirements.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bearing with an enlarged inner ring.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bearing with an enlargeable inner ring, comprising an inner ring and an outer ring, wherein a plurality of balls are disposed between the inner ring and the outer ring, a plurality of sliding grooves are provided on one side of the inner ring, the plurality of sliding grooves are arranged in a circular array along the central axis of the inner ring, a mounting block is provided in the sliding groove, and a mounting hole is provided on the side of the mounting block facing away from the central axis of the inner ring, the mounting block can drive the mounting hole to slide out of the sliding groove, an enlarged ring is detachably connected to the inner ring, a mounting groove is provided on one side of the enlarged ring for being embedded by the mounting block, a through hole communicating with the mounting groove is provided on the outer peripheral wall of the enlarged ring, a limiting hole is provided on the outer peripheral wall of the inner ring, a fixing bolt that can be threadedly connected to the mounting hole is provided in the limiting hole, the fixing bolt can also be inserted into the through hole.

[0007] The present invention is further configured such that the sliding groove and the mounting block are provided on both sides of the inner ring.

[0008] The present invention is further configured such that: a compression spring is provided in the sliding groove, and the two ends of the compression spring abut against the mounting block and the bottom of the sliding groove respectively; when one side of the mounting block is flush with the side wall of the inner ring, the mounting hole and the limiting hole are aligned.

[0009] The present invention is further configured such that: positioning grooves are provided on both sides of the inner ring, and a positioning post is provided on one side of the widened ring where the mounting groove is provided, wherein the length of the positioning post is greater than the length of the mounting block.

[0010] The present invention is further configured such that: an internal thread is provided in the perforation, and an elastic pad is fixedly connected to the inner peripheral wall of the limiting hole.

[0011] The present invention is further configured such that the fixing bolt is a wing bolt.

[0012] In summary, this utility model has the following beneficial effects:

[0013] Under normal load conditions, the mounting block is fully accommodated within the sliding groove. The fixing bolt passes through the limiting hole and is threaded into the mounting hole, preventing the mounting block from sliding out of the sliding groove and thus not affecting the bearing's operation. When the bearing needs to withstand higher axial loads, the fixing bolt is unscrewed from the limiting hole, and the mounting block is slid out of the sliding groove, exposing one side of the inner ring. After the widened ring is pressed against the inner ring, the fixing bolt is passed through the through hole and threaded into the mounting hole, allowing the mounting block to be installed in the mounting groove. This securely connects the widened ring to the inner ring, increasing the contact area between the inner ring and the shaft shoulder, thereby improving the bearing's axial load capacity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a schematic diagram of the structure of the widened roll in this utility model.

[0018] In the diagram: 1. Inner ring; 2. Outer ring; 3. Ball bearing; 4. Sliding groove; 5. Mounting block; 6. Mounting hole; 7. Widened ring; 8. Mounting groove; 9. Through hole; 10. Limiting hole; 11. Fixing bolt; 12. Compression spring; 13. Positioning groove; 14. Positioning post; 15. Elastic pad. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] A type of bearing with an adjustable inner ring, such as Figure 1 and Figure 2As shown, the device includes an inner ring 1 and an outer ring 2. Several balls 3 are arranged between the inner ring 1 and the outer ring 2. Several sliding grooves 4 are formed on one side of the inner ring 1, arranged in a circular array along the central axis of the inner ring 1. Mounting blocks 5 are provided within the sliding grooves 4. Mounting holes 6 are formed on the side of the mounting blocks 5 facing away from the central axis of the inner ring 1, allowing the mounting holes 6 to slide out of the sliding grooves 4. A widening ring 7 is detachably connected to the inner ring 1. A mounting groove 8 is provided on one side of the widening ring 7 for the mounting blocks 5 to be inserted into. A through hole 9 communicating with the mounting groove 8 is formed on the outer peripheral wall of the widening ring 7. A limiting hole 10 is formed on the outer peripheral wall of the inner ring 1, containing a fixing bolt 11 that can be threaded into the mounting hole 6. The fixing bolt 11 can also be inserted into the through hole 9. Under normal load conditions, the mounting block 5 is fully accommodated in the sliding groove 4. The fixing bolt 11 passes through the limiting hole 10 and is threaded into the mounting hole 6, preventing the mounting block 5 from sliding out of the sliding groove 4 and thus not affecting the operation of the bearing. When the bearing needs to withstand a higher axial load, the fixing bolt 11 is unscrewed from the limiting hole 10, and the mounting block 5 is slid out of the sliding groove 4, exposing one side of the inner ring 1. After the widening ring 7 is pressed against the inner ring 1, the fixing bolt 11 is passed through the through hole 9 and threaded into the mounting hole 6, so that the mounting block 5 is installed in the mounting groove 8, making the widening ring 7 fixedly connected to the inner ring 1, thereby increasing the contact area between the inner ring 1 and the shaft shoulder and improving the axial load capacity of the bearing.

[0021] like Figure 2 and Figure 3 As shown, the sliding groove 4 and the mounting block 5 are provided on both sides of the inner ring 1, and the structure for installing the widening ring 7 is also provided on both sides of the inner ring 1. This arrangement allows both sides of the inner ring 1 to be widened. A compression spring 12 is provided in the sliding groove 4, and the two ends of the compression spring 12 abut against the mounting block 5 and the bottom of the sliding groove 4, respectively. When one side of the mounting block 5 is flush with the side wall of the inner ring 1, the mounting hole 6 and the limiting hole 10 are aligned. The compression spring 12 provides a force for the sliding block to slide outward, so that when the mounting block 5 is not limited by the fixing bolt 11, the mounting block 5 can move outward to the limiting position under the pushing force of the compression spring 12. And at this time, when the... When the wide ring 7 is fitted with one side of the inner ring 1, the mounting hole 6 on the mounting block 5 is aligned with the through hole 9. The fixing bolt 11 is a wing bolt with a disc for easy gripping, making it easy for people to tighten. The through hole 9 is provided with internal threads. An elastic washer 15 is fixedly connected to the inner circumferential wall of the limiting hole 10. The fixing bolt 11 is threaded through the through hole 9 and then threadedly connected to the mounting hole 6. This arrangement makes it difficult for the mounting block 5 and the wide ring 7 to move back and forth. The limiting hole 10 is a smooth through hole, which makes it easy for people to directly insert the fixing bolt 11. The elastic washer 15 makes it difficult for noise to be generated between the fixing bolt 11 and the inner wall of the through hole 9.

[0022] like Figure 2and Figure 4 As shown, positioning grooves 13 are provided on both sides of the inner ring 1, and positioning pins 14 are provided on one side of the mounting groove 8 of the widened ring 7. The length of the positioning pin 14 is greater than the length of the mounting block 5, and the depth of the positioning groove 13 is equal to the length of the positioning pin 14. When aligning the widened ring 7 with the inner ring 1, the positioning pin 14 will first be positioned with the corresponding positioning groove 13. When the positioning pin 14 is inserted, it indicates that the mounting block 5 and the positioning groove 13 are aligned, which facilitates positioning. In addition, the positioning pin 14 is rigid and can share part of the axial load for the mounting block 5, ensuring the strength of the connection between the widened ring 7 and the inner ring 1. The inner ring 1, outer ring 2 and widened ring 7 are all made of high carbon chromium steel, which ensures the overall strength of the bearing.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bearing with an expandable inner ring, comprising an inner ring (1) and an outer ring (2), wherein a plurality of balls (3) are disposed between the inner ring (1) and the outer ring (2), characterized in that: The inner ring (1) has several sliding grooves (4) on one side. The sliding grooves (4) are arranged in a circular array along the central axis of the inner ring (1). The sliding grooves (4) are provided with mounting blocks (5). The mounting blocks (5) have mounting holes (6) on the side facing away from the central axis of the inner ring (1). The mounting blocks (5) can drive the mounting holes (6) to slide out of the sliding grooves (4). The inner ring (1) is detachably connected to a widening ring (7). The widening ring (7) has a mounting groove (8) on one side for the mounting blocks (5) to be embedded in. The outer peripheral wall of the widening ring (7) has a through hole (9) communicating with the mounting groove (8). The outer peripheral wall of the inner ring (1) has a limiting hole (10). The limiting hole (10) has a fixing bolt (11) that can be threaded into the mounting hole (6). The fixing bolt (11) can also be inserted into the through hole (9).

2. The bearing with an enlargeable inner ring according to claim 1, characterized in that: The sliding groove (4) and the mounting block (5) are provided on both sides of the inner ring (1).

3. The bearing with an enlargeable inner ring according to claim 1, characterized in that: A compression spring (12) is provided in the sliding groove (4). The two ends of the compression spring (12) abut against the mounting block (5) and the bottom of the sliding groove (4) respectively. When one side of the mounting block (5) is flush with the side wall of the inner ring (1), the mounting hole (6) and the limiting hole (10) are aligned.

4. A bearing with an enlargeable inner ring according to claim 2, characterized in that: The inner ring (1) is provided with positioning grooves (13) on both sides, and the widened ring (7) is provided with a positioning post (14) on one side of the mounting groove (8). The length of the positioning post (14) is greater than the length of the mounting block (5).

5. A bearing with an enlargeable inner ring according to claim 1, characterized in that: The perforation (9) is provided with an internal thread, and an elastic pad (15) is fixedly connected to the inner peripheral wall of the limiting hole (10).

6. A bearing with an enlargeable inner ring according to claim 1, characterized in that: The fixing bolt (11) is a wing bolt.

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