High-tightness adapter sleeve for bearing connection
By designing a high-tightness adapter sleeve and utilizing structures such as nuts, threaded holes, and limiting rings, the problem of the adapter sleeve not fitting tightly between the bearing and the optical shaft was solved, achieving a tight fit between the adapter sleeve and the optical shaft, preventing slippage, and extending the service life of the bearing.
Patent Information
- Application Number
- CN202520348404.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing locking sleeve is not tightly fitted between the bearing and the optical shaft, which may cause slippage, increase the axial load on the bearing, and thus accelerate wear.
A high-tightness locking sleeve was designed. Through the structure of nuts, threaded holes, movable blocks and limiting rings, the locking sleeve is tightly fitted to the outer surface of the optical shaft. The fit between the locking sleeve and the optical shaft is increased by the cooperation of the nut and the screw, and the bearing is limited and fixed by the limiting ring and the groove.
It effectively prevents the adapter sleeve from slipping, reduces the axial load on the bearing, and extends the bearing's service life.
Smart Images
Figure CN223868415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adapter sleeve technology, specifically a high-tightness adapter sleeve for bearing connection. Background Technology
[0002] A locking sleeve is a component used to position a bearing with a tapered bore on a cylindrical shaft. It is commonly used on smooth shafts or stepped shafts. It consists of a locking bushing, a locking nut, and a locking washer (or locking clip). It is easy to install and does not require additional fixing to the shaft.
[0003] Currently, when using adapter sleeves for bearing connections, the adapter sleeve located between the bearing and the optical shaft may slip during use because it is not tightly fitted to the optical shaft. This increases the axial load on the bearing and accelerates bearing wear. To address this, we propose a high-tightness adapter sleeve for bearing connections. Utility Model Content
[0004] The purpose of this invention is to provide a high-tightness adapter sleeve for bearing connection, which enables the adapter sleeve to fit tightly against the outer surface of the optical shaft, preventing the adapter sleeve from sliding and thus avoiding increased wear due to increased axial load on the bearing, thereby extending the bearing service life. This invention solves the problem that in current bearing connection adapter sleeves, the adapter sleeve located between the bearing and the optical shaft may slide during use because it is not tightly fitted to the optical shaft, thereby increasing the axial load on the bearing and accelerating bearing wear.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-tightness set sleeve for bearing connection, comprising a nut and a set bushing, wherein an external thread is provided on one side of the outer surface of the set bushing, and a groove is provided on the outer surface of the set bushing, the nut is movably sleeved on the outer surface of the set bushing, and a plurality of threaded holes are provided in a ring array at equal intervals on the outer surface of the nut, and a receiving groove is provided on the inner wall of the nut near each threaded hole, and the receiving groove and the threaded hole are connected, a screw is movably inserted into each threaded hole, and a movable block is rotatably connected to one end of each screw located inside the receiving groove, and a connecting thread is provided on the outer surface of each movable block away from the screw.
[0006] Preferably, a limit ring is provided on the side of the outer surface of the locking bushing that is away from the external thread.
[0007] Preferably, the outer surface of the limiting ring is provided with a plurality of second grooves arranged in a ring array at equal intervals.
[0008] Preferably, the outer surface of the nut is provided with a plurality of first grooves arranged in a ring array at equal intervals.
[0009] Preferably, a washer is movably fitted onto the outer surface of the retaining bushing, and a limiting protrusion is provided on the inner wall of the washer, with the limiting protrusion located inside the groove.
[0010] Preferably, the outer surface of the washer is provided with a plurality of limiting pieces arranged in a ring array at equal intervals.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model, by setting a settling bushing, nut, threaded hole, receiving groove, movable block, connecting thread, and external thread, achieves the effect of ensuring that the settling bushing is tightly fitted to the outer surface of the optical shaft, preventing the settling bushing from sliding, thereby avoiding increased wear due to increased axial load on the bearing, and thus extending the bearing's service life. The optical shaft passes through the inside of the settling bushing, and then the bearing is fitted onto the settling bushing. The nut is fitted onto the outer surface of the settling bushing through the external thread. During the tightening of the nut, the settling bushing 7 contracts and is fixedly fitted onto the outer surface of the optical shaft. After the nut fixes the bearing, the screw is tightened to drive the movable block towards the settling bushing and apply pressure to the settling bushing, thereby further improving the fit between the settling bushing and the optical shaft, ensuring that the settling bushing is tightly fitted to the outer surface of the optical shaft, thus preventing the settling bushing from sliding.
[0013] 2. By setting a limiting ring and a second groove, this utility model achieves the effect of limiting the bearing and facilitating the fixing of the set bushing when the nut is turned. When the bearing is sleeved on the outer surface of the set bushing, the bearing is located between the limiting ring and the nut. The limiting ring limits the position of the bearing. When the nut is turned, the set bushing can be fixed by the wrench and the second groove to facilitate the turning of the nut. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a partial three-dimensional structural diagram of the gasket of this utility model;
[0016] Figure 3 This is a partial three-dimensional structural diagram of the screw of this utility model;
[0017] Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model.
[0018] Reference numerals: 1. Nut; 2. First groove; 3. External thread; 4. Screw; 5. Limiting ring; 6. Second groove; 7. Set bushing; 8. Groove; 9. Washer; 10. Limiting protrusion; 11. Limiting piece; 12. Connecting thread; 13. Movable block; 14. Receiving groove; 15. Threaded hole. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] Example 1
[0021] like Figure 1 , Figure 3 and Figure 4 As shown, this utility model proposes a high-tightness set sleeve for bearing connection, including a nut 1 and a set sleeve 7. An external thread 3 is provided on one side of the outer surface of the set sleeve 7, and a groove 8 is provided on the outer surface of the set sleeve 7. The nut 1 is movably fitted onto the outer surface of the set sleeve 7. The external thread 3 meshes with the internal thread on the inner wall of the nut 1. A plurality of first grooves 2 are evenly spaced in a ring array on the outer surface of the nut 1. By turning the nut 1 through the handle and the first grooves 2, the nut 1's outer surface is further flexibly rotated. There are several threaded holes 15. The inner wall of the nut 1 is provided with a receiving groove 14 near each threaded hole 15, and the receiving groove 14 is connected to the threaded hole 15. A screw 4 is movably inserted into each threaded hole 15. The screw 4 and the movable block 13 are rotatably connected through a rotating shaft. The end of each screw 4 located inside the receiving groove 14 is rotatably connected to the movable block 13. The outer surface of each movable block 13 is provided with a connecting thread 12 on the side away from the screw 4. The connecting thread 12 and the external thread 3 are engaged.
[0022] In use, the optical axis passes through the inside of the locking bushing 7, and then the bearing is fitted onto the locking bushing 7. The nut 1 is fitted onto the outer surface of the locking bushing 7 through the external thread 3. During the tightening of the nut 1, the locking bushing 7 contracts and is fixedly fitted onto the outer surface of the optical axis. After the nut 1 fixes the bearing, the screw 4 is tightened to drive the movable block 13 toward the locking bushing 7 and apply pressure to the locking bushing 7, thereby further improving the fit between the locking bushing 7 and the optical axis, so that the locking bushing 7 fits tightly against the outer surface of the optical axis to prevent the locking bushing 7 from sliding.
[0023] Example 2
[0024] like Figure 1 As shown, the present invention proposes a high-tightness locking sleeve for bearing connection. Compared with the first embodiment, this embodiment further includes a limiting ring 5 on the outer surface of the locking bushing 7 away from the external thread 3. The outer surface of the limiting ring 5 is provided with a plurality of second grooves 6 in a ring array at equal intervals.
[0025] In this embodiment, when the bearing is sleeved on the outer surface of the locking bushing 7, the bearing is located between the limiting ring 5 and the nut 1. The limiting ring 5 plays a role in limiting the position of the bearing. When the nut 1 is turned, the locking bushing 7 can be fixed by the wrench and the second groove 6 to facilitate the turning of the nut 1.
[0026] Example 3
[0027] like Figure 1 and Figure 2 As shown, the present invention proposes a high-tightness locking sleeve for bearing connection. Compared with the first embodiment, this embodiment also includes a washer 9 movably sleeved on the outer surface of the locking bushing 7. The inner wall of the washer 9 is provided with a limiting protrusion 10, and the limiting protrusion 10 is located inside the groove 8. A plurality of limiting pieces 11 are evenly distributed in a ring array on the outer surface of the washer 9.
[0028] In this embodiment, the washer 9 is fitted on the outer surface of the locking bushing 7 and is located between the nut 1 and the bearing. The limiting protrusion 10 located inside the groove 8 restricts the rotation of the washer 9. Then, the limiting piece 11 is bent and inserted into the first groove 2 to restrict the rotation of the nut 1 and prevent the nut 1 from loosening.
[0029] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A high-tightness adapter sleeve for bearing connection, comprising a nut (1) and an adapter bushing (7), characterized in that: The outer surface of the retaining bushing (7) is provided with an external thread (3) and a groove (8) on the outer surface of the retaining bushing (7). The nut (1) is movably sleeved on the outer surface of the retaining bushing (7). The outer surface of the nut (1) is provided with a number of threaded holes (15) arranged in a ring array at equal intervals. The inner wall of the nut (1) is provided with a receiving groove (14) near each threaded hole (15), and the receiving groove (14) and the threaded hole (15) are connected. A screw (4) is movably inserted into each threaded hole (15). One end of each screw (4) located inside the receiving groove (14) is rotatably connected to a movable block (13). The outer surface of each movable block (13) is provided with a connecting thread (12) on the side away from the screw (4).
2. The high-tightness adapter sleeve for bearing connection according to claim 1, characterized in that: A limit ring (5) is provided on the side of the outer surface of the locking bushing (7) away from the external thread (3).
3. A high-tightness adapter sleeve for bearing connection according to claim 2, characterized in that: The outer surface of the limiting ring (5) is provided with several second grooves (6) arranged in a ring array at equal intervals.
4. A high-tightness adapter sleeve for bearing connection according to claim 1, characterized in that: The outer surface of the nut (1) is provided with several first grooves (2) arranged in a ring array at equal intervals.
5. A high-tightness adapter sleeve for bearing connection according to claim 1, characterized in that: The outer surface of the retaining bushing (7) is movably fitted with a washer (9), and the inner wall of the washer (9) is provided with a limiting protrusion (10), and the limiting protrusion (10) is located inside the groove (8).
6. A high-tightness adapter sleeve for bearing connection according to claim 5, characterized in that: The outer surface of the washer (9) is provided with a number of limiting pieces (11) arranged in a ring array at equal intervals.