Dustproof bearing with key groove structure

Abstract

The utility model discloses a dustproof type bearing with a key groove structure, and particularly relates to the technical field of bearings, the dustproof type bearing comprises a connecting ring arranged in a bearing main body, and a plurality of key grooves distributed at intervals are formed in the inner side wall of the connecting ring; annular grooves are formed in the front side and the rear side of the connecting ring correspondingly, a plurality of connecting bolts distributed in an annular array mode are arranged in the annular grooves, and the ends, away from the annular grooves, of the connecting bolts penetrate through the connecting ring and extend out of the connecting ring. The fixing ring and the sealing ring are movably connected through the clamping of the positioning ring and the ring fixing groove, so that the connecting ring which is fixed with the fixing ring through the fixing bolt cannot be blocked in movement, and the connecting ring can be separated from the fixing ring by detaching the fixing bolt, so that the connecting ring is convenient to detach, and the sealing performance of the sealing ring is improved. And the sealing ring does not need to be disassembled, so that the sealing effect of the sealing ring can be prevented from being influenced by repeated disassembly and assembly of the sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically to a dustproof bearing with a keyway structure. Background Technology

[0002] Bearings are crucial basic components in mechanical equipment, widely used in various mechanical systems. Their main functions are to support and guide rotating components, ensure rotational accuracy, reduce the coefficient of friction, and bear the radial and axial loads generated during equipment operation. Keyways play a vital role in bearing design, especially in applications requiring torque transmission or precise positioning. Keyways are typically used in conjunction with keys to form a keyed connection. This connection ensures a precise fit between the bearing's inner (or outer) ring and the shaft (or bearing housing), preventing relative rotation and thus enabling effective torque transmission. Dust prevention is equally important for bearings. In harsh working environments, such as dusty, humid, or corrosive environments, dust and other contaminants can easily enter the bearing, leading to lubricant contamination, accelerated wear, and even corrosion, thereby shortening the bearing's service life. Therefore, taking effective dust prevention measures is crucial for protecting bearings and extending their service life.

[0003] As shown in the prior art published in CN221195753U, although this prior art uses a dustproof assembly to allow the limiting block on the side of the sealing plate to engage with the limiting groove, and then inserts two locking bolts into the limiting block and rotates them to mesh with the limiting groove, the two sealing plates can intercept dust, thus extending the service life of the deep groove ball bearing. However, when disassembling the insertion part, the sealing plate on the dustproof assembly must be removed first before the insertion part can be removed. Repeated disassembly and reassembly of the sealing plate will affect its sealing effect, thereby affecting the dustproof effect of this technical solution. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a dustproof bearing with a keyway structure. By engaging the positioning ring with the ring groove, the fixed ring and the sealing ring are movably connected. This ensures that the connecting ring, which is fixed to the fixed ring by the fixing bolt, will not experience any movement obstruction. Furthermore, by removing the fixing bolt, the connecting ring and the fixed ring can be separated, facilitating the disassembly of the connecting ring without having to disassemble the sealing ring as well. This avoids the repeated disassembly and assembly of the sealing ring, which would affect its sealing effect, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dustproof bearing with a keyway structure, comprising a connecting ring disposed inside the bearing body, wherein the inner sidewall of the connecting ring is provided with a plurality of spaced keyways;

[0006] The connecting ring has annular grooves on both the front and rear sides. Multiple connecting bolts are arranged in a ring array inside the annular grooves, and the end of the connecting bolt away from the annular groove passes through the connecting ring and extends to the outside of the connecting ring.

[0007] The connecting ring is fitted with sealing rings on both the front and rear ends, and the sealing rings are fitted with connecting parts for connecting bolts.

[0008] In a preferred embodiment, the connector includes a fixing ring disposed inside the sealing ring, a positioning ring sleeved outside the fixing ring, and a ring groove opened on one side of the sealing ring corresponding to the positioning ring, the positioning ring being disposed inside the ring groove;

[0009] The fixing ring is sleeved on the outside of the connecting ring, and the end of the connecting bolt away from the connecting ring extends into the inside of the fixing ring. The connecting bolt is threadedly connected to the fixing ring.

[0010] In a preferred embodiment, the inner wall of the annular groove is threaded with a mounting ring, and a retaining ring is sleeved on the outside of the mounting ring. The retaining ring is located inside the annular groove and outside of multiple connecting bolts.

[0011] In a preferred embodiment, the bearing body includes rolling elements disposed between an inner ring and an outer ring, with the outer ring sleeved outside the inner ring;

[0012] The outer ring has an outer groove at both ends corresponding to one side of the sealing ring, and the sealing ring is located inside the outer groove. The inner ring has an inner groove at both ends corresponding to one side of the fixing ring, and the fixing ring is located inside the inner groove.

[0013] In a preferred embodiment, the sealing ring has a plurality of fastening bolts on the side away from the outer ring. The fastening bolts pass through the sealing ring and extend into the interior of the outer ring, and the fastening bolts are threadedly connected to the outer ring.

[0014] In a preferred embodiment, the inner wall of the inner ring is provided with a plurality of spaced grooves, each groove having a plate inside. The plate is installed outside the connecting ring, and the fixing ring has a through hole on one side corresponding to the plate.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. By engaging the positioning ring with the ring groove, the fixed ring and the sealing ring are movably connected. This ensures that the connecting ring, which is fixed to the fixed ring by the fixing bolt, will not be hindered from moving. Furthermore, by removing the fixing bolt, the connecting ring and the fixed ring can be separated, making it easy to disassemble the connecting ring without having to disassemble the sealing ring as well. This avoids the sealing effect of the sealing ring being affected by repeated disassembly and assembly.

[0017] 2. By connecting the mounting ring to the inner wall of the ring groove with a threaded connection, the mounting ring can be assembled to embed the retaining ring into the ring groove. The retaining ring protects the ring groove and prevents external debris from entering the ring groove and causing contamination, thereby ensuring the assembly stability between the fixing bolt and the fixing ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the bearing body of this utility model;

[0020] Figure 3 This is a side sectional view of the sealing ring of this utility model;

[0021] Figure 4 This is an exploded view of the connecting ring of this utility model;

[0022] Figure 5 This is the front view of the inner ring of this utility model.

[0023] The attached figures are labeled as follows: 1. Bearing body; 101. Inner ring; 102. Outer ring; 103. Rolling element; 104. Outer groove; 105. Inner groove;

[0024] 2. Connecting ring; 3. Keyway; 4. Ring groove; 5. Connecting bolt; 6. Sealing ring; 7. Fixing ring; 8. Positioning ring; 9. Ring groove; 10. Mounting ring; 11. Retaining ring; 12. Fastening bolt; 13. Embedded groove; 14. Insert plate; 15. Through hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Refer to the instruction manual appendix Figure 1-5This utility model provides a dustproof bearing with a keyway structure, including a connecting ring 2 disposed inside the bearing body 1, wherein the inner sidewall of the connecting ring 2 is provided with a plurality of spaced keyways 3; the bearing body 1 includes a rolling element 103 disposed between an inner ring 101 and an outer ring 102, and the outer ring 102 is sleeved outside the inner ring 101; both ends of the outer ring 102 are provided with an outer groove 104 on one side corresponding to a sealing ring 6, and the sealing ring 6 is disposed inside the outer groove 104; both ends of the inner ring 101 are provided with an inner groove 105 on one side corresponding to a fixing ring 7, and the fixing ring 7 is disposed inside the inner groove 105. Through the cooperation of the inner ring 101, the rolling element 103 and the outer ring 102, the equipment can be connected for movable connection.

[0027] like Figure 1-4 As shown, the connecting ring 2 has annular grooves 4 on both its front and rear sides. Multiple connecting bolts 5 arranged in a circular array are located inside the annular grooves 4, with one end of the connecting bolt 5, away from the annular groove 4, penetrating the connecting ring 2 and extending to the outside of the connecting ring 2. Sealing rings 6 are fitted around both ends of the connecting ring 2, and connecting components for connecting the connecting bolts 5 are located inside the sealing ring 6. The connecting components include a fixing ring 7 located inside the sealing ring 6, and a positioning ring 8 fitted around the fixing ring 7. A ring-fixing groove 9 is formed on one side of the sealing ring 6 corresponding to the positioning ring 8, and the positioning ring 8 is located inside the ring-fixing groove 9. The fixing ring 7 is fitted around the connecting ring 2, and the end of the connecting bolt 5, away from the connecting ring 2, extends into the fixing ring 7. The connecting bolt 5 is threadedly connected to the fixing ring 7.

[0028] In use, the engagement of the positioning ring 8 and the ring groove 9 makes the fixed ring 7 and the sealing ring 6 movably connected. Since the connecting ring 2 is fixed to the fixed ring 7 by the fixing bolt, when the connecting ring 2 is connected to other equipment through the keyway 3, the connecting ring 2 will not drive the sealing ring 6 to rotate, thus avoiding any movement obstruction. Furthermore, by removing the fixing bolt, the connecting ring 2 can be separated from the fixed ring 7, making it easy to disassemble the connecting ring 2 without having to disassemble the sealing ring 6 as well. This avoids the sealing effect of the sealing ring 6 being affected by repeated disassembly and assembly.

[0029] At the same time, to ensure the connection effect between the connecting ring 2 and the inner ring 101, it is necessary to enhance the tightness of the connection between the connecting ring 2 and the inner ring 101, such as... Figure 2 , 4As shown in Figure 5, the inner wall of the inner ring 101 has a plurality of spaced grooves 13, and each groove 13 has a plate 14 inside. The plate 14 is installed outside the connecting ring 2, and the fixing ring 7 has a through hole 15 on one side corresponding to the plate 14. When the operator inserts the connecting ring 2 into the inner ring 101, the plate 14 on the connecting ring 2 corresponds to the groove 13 on the inner ring 101. In this way, the engagement between the plate 14 and the groove 13 can enhance the tightness between the connecting ring 2 and the inner ring 101 and prevent loosening.

[0030] To prevent debris from falling into the annular groove 4 and causing contamination, the annular groove 4 needs to be shielded and protected, such as... Figure 1 , 2 As shown in Figure 4, the inner wall of the annular groove 4 is threaded with an installation ring 10, and a retaining ring 11 is sleeved on the outside of the installation ring 10. The retaining ring 11 is located inside the annular groove 4 and outside the multiple connecting bolts 5. Through the threaded connection between the installation ring 10 and the inner wall of the annular groove 4, the operator can operate the installation ring 10 to embed the retaining ring 11 into the annular groove 4. The retaining ring 11 protects the annular groove 4 and prevents external debris from entering the annular groove 4 and causing contamination, thereby ensuring the assembly stability between the fixing bolts and the fixing ring 7.

[0031] To prevent dust and other debris from affecting the performance of the bearing body 1, it is necessary to block dust and other impurities, such as... Figure 1-3 As shown, the sealing ring 6 has multiple fastening bolts 12 on the side away from the outer ring 102. The fastening bolts 12 pass through the sealing ring 6 and extend into the outer ring 102. The fastening bolts 12 are threadedly connected to the outer ring 102. In use, the sealing ring 6 and the fixing ring 7 are assembled to the outside of the outer ring 102 and the inner ring 101 by means of the fastening bolts 12. In this way, the sealing ring 6 and the fixing ring 7 can shield and protect the rolling element 103, preventing external dust and other impurities from entering the interior of the rolling element 103 and causing damage, thereby ensuring the performance of the bearing body 1.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust-proof bearing with a key groove structure, characterized by: Includes a connecting ring (2) disposed inside the bearing body (1), wherein the inner sidewall of the connecting ring (2) is provided with a plurality of spaced keyways (3); The connecting ring (2) has annular grooves (4) on both the front and rear sides. The annular grooves (4) are provided with multiple connecting bolts (5) arranged in a ring array inside. The end of the connecting bolt (5) away from the annular groove (4) passes through the connecting ring (2) and extends to the outside of the connecting ring (2). The connecting ring (2) is fitted with sealing rings (6) on both the front and rear ends, and the sealing rings (6) are fitted with connecting parts for connecting the connecting bolts (5).

2. The dust-proof bearing with a key groove structure according to claim 1, characterized in that: The connecting component includes a fixing ring (7) disposed inside the sealing ring (6), a positioning ring (8) sleeved on the outside of the fixing ring (7), and a ring groove (9) is opened on one side of the sealing ring (6) corresponding to the positioning ring (8), and the positioning ring (8) is disposed inside the ring groove (9). The fixing ring (7) is sleeved on the outside of the connecting ring (2), and the end of the connecting bolt (5) away from the connecting ring (2) extends into the inside of the fixing ring (7). The connecting bolt (5) is threadedly connected to the fixing ring (7).

3. The dust-proof bearing with a key groove structure according to claim 1, characterized in that: The inner wall of the annular groove (4) is threaded with an installation ring (10), and a retaining ring (11) is sleeved on the outside of the installation ring (10). The retaining ring (11) is located inside the annular groove (4) and outside the multiple connecting bolts (5).

4. The dust-proof bearing with a key groove structure according to claim 2, characterized in that; The bearing body (1) includes a rolling element (103) disposed between the inner ring (101) and the outer ring (102), and the outer ring (102) is sleeved outside the inner ring (101); The outer ring (102) has an outer groove (104) at both ends corresponding to one side of the sealing ring (6), and the sealing ring (6) is located inside the outer groove (104). The inner ring (101) has an inner groove (105) at both ends corresponding to one side of the fixing ring (7), and the fixing ring (7) is located inside the inner groove (105).

5. The dust-proof bearing with a key groove structure according to claim 4, characterized in that: The sealing ring (6) has a plurality of fastening bolts (12) on the side away from the outer ring (102). The fastening bolts (12) penetrate the sealing ring (6) and extend into the outer ring (102). The fastening bolts (12) are threadedly connected to the outer ring (102).

6. The dust-proof bearing with a key groove structure according to claim 4, characterized in that: The inner ring (101) has multiple spaced grooves (13) on its inner sidewall. Each groove (13) has a plate (14) inside it. The plate (14) is installed outside the connecting ring (2), and the fixing ring (7) has through holes (15) on one side corresponding to the plate (14).

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