High-precision bearing adapter sleeve

Abstract

The utility model relates to the technical field of adapter sleeves, in particular to a high-precision bearing adapter sleeve. According to the technical scheme, the locking device comprises a locking nut, a locking washer and a fastening bush, a contraction notch is formed in the outer surface of the fastening bush, the locking nut and the locking washer are both connected to the outer surface of the fastening bush in a sleeving mode, a limiting protrusion is arranged on the inner wall of the locking washer and located in the contraction notch, and the contraction notch is formed in the inner wall of the locking washer. A plurality of threaded holes are formed in the outer surface of the locking gasket in an annular array at equal intervals, penetrating notches are symmetrically formed in the positions, close to the front surface and the rear surface, of the outer surface of the locking nut, screws are inserted into the penetrating notches, and the tail ends of the screws are located in the threaded holes. The locking nut does not need to be rotated and finely adjusted in the locking and loosening prevention process of the locking nut, so that the mounting precision of the adapter sleeve and the bearing is ensured, the bearing stably runs, the service life of the bearing is prolonged, and meanwhile, the adapter sleeve is prevented from sliding on the shaft.

Description

Technical Field

[0001] This utility model relates to the field of adapter sleeve technology, specifically a high-precision bearing adapter sleeve. Background Technology

[0002] A bearing adapter sleeve is a component used to fix a bearing with a tapered bore onto a cylindrical shaft. It is typically used for smooth shafts or stepped shafts. The adapter sleeve consists of parts such as an adapter bushing, a lock nut, and a lock washer (or lock clip). Adapter sleeves with lock nuts and lock washers can only be interchanged as a complete set; parts from different sources cannot be interchanged.

[0003] Current bearing adapter sleeves require bending the teeth of the locking washer on the locking nut to prevent loosening of the locking nut, thus restricting the rotation of the locking nut. This process necessitates adjusting the locking nut to ensure the bent locking washer teeth precisely engage with the groove. However, this adjustment creates minute gaps between the locking washer, bearing, and locking nut, reducing installation accuracy and increasing the risk of bearing wobbling and damage. Furthermore, it affects the tightness of the adapter sleeve's fit on the shaft, potentially increasing the slippage of the adapter sleeve on the shaft. Therefore, we propose a high-precision bearing adapter sleeve. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision bearing adapter sleeve that eliminates the need for fine-tuning the locking nut during the tightening process, ensuring the installation accuracy of the adapter sleeve and bearing, resulting in stable bearing operation, extended service life, and prevention of adapter sleeve slippage on the shaft. This invention solves the problem of current bearing adapter sleeves requiring bending of the locking washer teeth to engage with the locking nut's outer surface groove to prevent loosening. This process necessitates adjusting the locking nut to ensure the bent locking washer teeth are properly engaged, which creates small gaps between the locking washer, bearing, and locking nut, reducing installation accuracy and increasing the risk of bearing wobbling and damage. Furthermore, it affects the tight fit of the adapter sleeve on the shaft, potentially increasing the likelihood of slippage of the adapter sleeve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision bearing adapter sleeve, comprising a locking nut, a locking washer, and an adapter bushing. The outer surface of the adapter bushing is provided with a contraction groove. Both the locking nut and the locking washer are fitted onto the outer surface of the adapter bushing. The inner wall of the locking washer is provided with a limiting protrusion, which is located inside the contraction groove. The outer surface of the locking washer is provided with a plurality of threaded holes arranged in a ring array at equal intervals. The outer surface of the locking nut is provided with symmetrical through grooves near the front and rear surfaces. A screw is inserted into the through groove, and the end of the screw is located inside the threaded hole. The outer side of the locking nut is provided with an anti-slip groove near the through groove. An anti-slip plate is fitted onto the outer surface of the screw, and anti-slip teeth are provided on the inner side of the anti-slip plate.

[0006] Preferably, the outer surface of the locking bushing is provided with an external thread, and the external thread engages with the internal thread of the inner wall of the locking nut.

[0007] Preferably, the outer surface of the locking nut is provided with a plurality of engagement grooves arranged in a ring array at equal intervals.

[0008] Preferably, a limit ring is provided on the side of the outer surface of the locking bushing that is away from the external thread.

[0009] Preferably, the outer surface of the limiting ring is provided with a plurality of fixing grooves arranged in a ring array at equal intervals.

[0010] Preferably, a pin hole is provided on the outer surface of the screw near the end position.

[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, a locking nut, a through slot, a contraction slot, a locking washer, a threaded hole, a limiting protrusion, a screw, an anti-slip plate, anti-slip teeth, and an anti-slip groove, achieves the effect of not needing to rotate and fine-tune the locking nut during the locking and anti-loosening process. This ensures the installation accuracy of the settling bushing and the bearing, making the bearing run stably and extending its service life. At the same time, it avoids the effect of the settling bushing sliding on the shaft. The shaft passes through the inside of the settling bushing, and the locking nut and locking washer are fitted on the settling bushing. After tightening the locking nut, the bearing and locking washer are fixed. Then, the screw is passed through the through slot, and the position of the screw inside the through slot is adjusted so that the end of the screw is screwed into the threaded hole. The anti-slip teeth on the inside of the anti-slip plate and the anti-slip groove on the outside of the locking nut play an anti-slip and limiting role for the screw, which can restrict the rotation of the locking nut and achieve the effect of preventing loosening.

[0013] 2. By providing a pin hole, this utility model allows a pin to be inserted into the pin hole to restrict the rotation of the screw and prevent the screw from becoming loose. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the locking washer of this utility model;

[0017] Figure 4 This is a partial three-dimensional structural diagram of the locking nut of this utility model;

[0018] Figure 5 This is a partial three-dimensional structural diagram of the screw of this utility model.

[0019] Reference numerals: 1. External thread; 2. Locking nut; 3. Engaging groove; 4. Screw; 5. Locking washer; 6. Set bushing; 7. Limiting ring; 8. Fixing groove; 9. Contraction groove; 10. Limiting protrusion; 11. Threaded hole; 12. Through groove; 13. Anti-slip groove; 14. Pin hole; 15. Anti-slip tooth; 16. Anti-slip plate. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, this utility model proposes a high-precision bearing adapter sleeve, including a locking nut 2, a locking washer 5, and an adapter bushing 6. The outer surface of the adapter bushing 6 is provided with a contraction groove 9. Both the locking nut 2 and the locking washer 5 are fitted onto the outer surface of the adapter bushing 6. One side of the outer surface of the adapter bushing 6 is provided with an external thread 1, which meshes with the internal thread on the inner wall of the locking nut 2. The outer surface of the locking nut 2 is provided with a plurality of equally spaced engagement grooves 3 in a circular array. A wrench is used to rotate the locking nut 2 in conjunction with the engagement grooves 3. The inner wall of the locking washer 5 is provided with a limiting protrusion 10, and the limiting protrusion 10… The 0 is located inside the shrinkage groove 9, which restricts the rotation of the locking washer 5. The outer surface of the locking washer 5 is provided with a number of threaded holes 11 in a ring array at equal intervals. The outer surface of the locking nut 2 is provided with through grooves 12 symmetrically distributed near the front and rear surfaces. A screw 4 is inserted into the through groove 12, and the end of the screw 4 is located inside the threaded hole 11. An anti-slip groove 13 is provided on the outer side of the locking nut 2 near the through groove 12. An anti-slip plate 16 is sleeved on the outer surface of the screw 4. An anti-slip tooth 15 is provided on the inner side of the anti-slip plate 16. The anti-slip tooth 15 and the anti-slip groove 13 are compatible.

[0023] In use, the locking nut 2 and locking washer 5 are fitted onto the set bushing 6. Tightening the locking nut 2 fixes the bearing and locking washer 5. Then, the screw 4 is passed through the through slot 12, and the position of the screw 4 inside the through slot 12 is adjusted so that the end of the screw 4 is screwed into the threaded hole 11. The anti-slip teeth 15 on the inner side of the anti-slip plate 16 and the anti-slip groove 13 on the outer side of the locking nut 2 prevent the screw 4 from slipping and limit its rotation, thus preventing loosening. Therefore, there is no need to rotate the locking nut 2 for fine-tuning during the locking and loosening process, which ensures the installation accuracy of the set bushing and bearing, makes the bearing run stably, extends its service life, and prevents the set bushing 6 from sliding on the shaft.

[0024] Example 2

[0025] like Figure 1 and Figure 5 As shown, the present invention proposes a high-precision bearing adapter sleeve. Compared with the first embodiment, this embodiment further includes a limiting ring 7 on the side of the outer surface of the adapter sleeve 6 away from the external thread 1. The limiting ring 7 plays a limiting role for the bearing on the adapter sleeve 6. The outer surface of the limiting ring 7 is provided with a number of fixing grooves 8 in a ring array at equal intervals. A wrench can be used in conjunction with the fixing grooves 8 to fix the adapter sleeve 6 so as to facilitate the rotation of the locking nut 2. A pin hole 14 is provided on the outer surface of the screw 4 near the end position.

[0026] In this embodiment, a pin is inserted into the pin hole 14 to restrict the rotation of the screw 4 and prevent the anti-slip teeth 15 and the anti-slip groove 13 from separating, so as to avoid the locking nut 2 from loosening.

[0027] 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-precision bearing adapter sleeve, comprising a locking nut (2), a locking washer (5), and an adapter bushing (6), characterized in that: The outer surface of the locking bushing (6) is provided with a shrinkage groove (9). The locking nut (2) and the locking washer (5) are both sleeved on the outer surface of the locking bushing (6). The inner wall of the locking washer (5) is provided with a limiting protrusion (10), and the limiting protrusion (10) is located inside the shrinkage groove (9). The outer surface of the locking washer (5) is provided with a number of threaded holes (11) arranged in a ring array at equal intervals. The outer surface of the locking nut (2) is provided with symmetrical through grooves (12) near the front and rear surfaces. A screw (4) is inserted into the through groove (12), and the end of the screw (4) is located inside the threaded hole (11). The outer side of the locking nut (2) is provided with an anti-slip groove (13) near the through groove (12). The outer surface of the screw (4) is sleeved with an anti-slip plate (16), and the inner side of the anti-slip plate (16) is provided with anti-slip teeth (15).

2. The high-precision bearing adapter sleeve according to claim 1, characterized in that: The outer surface of the locking bushing (6) is provided with an external thread (1), and the external thread (1) meshes with the internal thread on the inner wall of the locking nut (2).

3. A high-precision bearing adapter sleeve according to claim 2, characterized in that: The outer surface of the locking nut (2) is provided with several interlocking grooves (3) arranged in a ring array at equal intervals.

4. A high-precision bearing adapter sleeve according to claim 2, characterized in that: A limiting ring (7) is provided on the side of the outer surface of the locking bushing (6) away from the external thread (1).

5. A high-precision bearing adapter sleeve according to claim 4, characterized in that: The outer surface of the limiting ring (7) is provided with several fixed grooves (8) arranged in a ring array at equal intervals.

6. A high-precision bearing adapter sleeve according to claim 1, characterized in that: A pin hole (14) is provided on the outer surface of the screw (4) near the end.

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