Aluminum cover for an encoder

By combining the fixing sleeve, pressure ring, sliding sleeve and adjusting sleeve in the aluminum cover design, the problem of inconvenient disassembly and assembly caused by the interference fit between the aluminum cover and the bearing in the existing technology is solved, and the disassembly and assembly of the bearing is simplified and the operation is convenient.

CN224473565UActive Publication Date: 2026-07-07NINGBO TANGYING MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO TANGYING MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing encoders use an interference fit between the aluminum cover and the bearing, which makes disassembly and assembly inconvenient and requires specialized tools. Improper operation may also damage the equipment. This is a technical problem that existing technologies cannot effectively solve.

Method used

An aluminum cover design is adopted, which uses a combination structure of a fixed sleeve, a pressure ring, a sliding sleeve and an adjusting sleeve to achieve bearing position locking and simplify the disassembly and assembly process.

Benefits of technology

This simplifies the bearing assembly and disassembly process, avoids equipment damage and reliance on specialized tools, and improves the convenience and reliability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a aluminium cover for encoder, including the cover body, the fixed coupling of cover body has the fixed sleeve, and the bearing outer ring is sleeved in the fixed sleeve, and the first washer is arranged to the bearing outer ring bottom, is seted up in the installation groove of cover body, and the first washer sets up in the installation groove, and the second washer is arranged to the bearing outer ring top, and the pressure ring is arranged to the second washer top, and the sliding sleeve is fixedly connected with the pressure ring top, and the sliding sleeve slidingly connects in the fixed sleeve, and the connecting ring is fixedly connected with the sliding sleeve top, and the adjusting sleeve is fixedly connected with the connecting ring, and the adjusting sleeve is screwed on the fixed sleeve, the utility model utilizes the fixed sleeve to limit the radial movement of bearing outer ring, utilizes the pressure ring to limit the axial movement of bearing outer ring, utilizes the friction resistance of first washer and second washer to provide, and the rotation of bearing outer ring is limited, thereby realizes the position locking of bearing outer ring, and the pressure ring adjusts the position through the adjusting sleeve of screw connection with the fixed sleeve, makes the dismounting of bearing more convenient and simple.
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Description

Technical Field

[0001] This utility model relates to the field of encoder technology, and in particular to an aluminum cover for encoders. Background Technology

[0002] In the structural design of encoders, the aluminum cover is a crucial component, serving to protect internal elements and provide a mounting base for some critical parts. Currently, encoders typically use an interference fit between the aluminum cover and bearings. An interference fit utilizes the amount of interference between the parts to create pressure between their surfaces, achieving a reliable connection. While this method ensures the stability and reliability of the encoder to a certain extent, it also makes bearing disassembly and assembly inconvenient. Disassembly often requires specialized tools, such as pullers, and the process must be extremely careful; even slight mistakes can damage the aluminum cover, leading to unnecessary economic losses. Furthermore, installing new bearings also requires precise operation and specialized equipment for the interference fit. Utility Model Content

[0003] The purpose of this invention is to provide an aluminum cover for an encoder to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an aluminum cover for an encoder, including a cover body, a fixed sleeve fixedly connected to the cover body, a bearing outer ring sleeved inside the fixed sleeve, a first washer provided at the bottom end of the bearing outer ring, an installation groove opened on the cover body, and the first washer provided in the installation groove, a second washer provided at the top end of the bearing outer ring, a pressure ring provided at the top end of the second washer, a sliding sleeve fixedly connected to the top end of the pressure ring, and the sliding sleeve slidably connected to the fixed sleeve, a connecting ring fixedly connected to the top end of the sliding sleeve, an adjusting sleeve fixedly connected to the connecting ring, and the adjusting sleeve threadedly connected to the fixed sleeve.

[0005] Preferably, an inner bearing ring is installed inside the outer bearing ring, and multiple rollers are evenly distributed in the gap between the inner and outer bearing rings.

[0006] Preferably, a stepped groove is formed in the mounting groove at the position corresponding to the inner ring of the bearing, and a through hole is formed in the stepped groove.

[0007] Preferably, the fixing sleeve has an external thread, the adjusting sleeve has an internal thread, and the internal thread is threaded to the external thread.

[0008] Preferably, a protruding ring is fixedly connected to the cover.

[0009] Preferably, the cover has multiple mounting holes.

[0010] The advantages of the aluminum cover for encoder provided by this utility model are as follows: This utility model uses a fixed sleeve to limit the radial movement of the bearing outer ring, uses a pressure ring to limit the axial movement of the bearing outer ring, and uses the frictional resistance provided by the first and second washers to limit the rotation of the bearing outer ring, thereby achieving position locking of the bearing outer ring. The pressure ring is adjusted in position by an adjusting sleeve that is threadedly connected to the fixed sleeve, making the disassembly and assembly of the bearing more convenient and simple. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall front view sectional structure of this utility model;

[0013] Figure 2 for Figure 1 Enlarged view of the structure of region A in the middle;

[0014] Figure 3 This is a schematic diagram of the main sectional view of the cover body of this utility model;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the adjusting sleeve of this utility model.

[0017] In the diagram: 1. Cover; 11. Mounting groove; 12. Stepped groove; 13. Through hole; 14. Fixing sleeve; 15. External thread; 16. Raised ring; 17. Mounting hole; 2. Adjusting sleeve; 21. Internal thread; 22. Connecting ring; 23. Sliding sleeve; 24. Pressure ring; 3. Bearing outer ring; 31. Roller; 32. Bearing inner ring; 33. First washer; 34. Second washer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see the appendix Figure 1 - Appendix Figure 5 This utility model provides an embodiment of an aluminum cover for an encoder, comprising a cover body 1, a fixing sleeve 14 fixedly connected to the cover body 1, a bearing outer ring 3 sleeved inside the fixing sleeve 14, a first washer 33 provided at the bottom end of the bearing outer ring 3, an installation groove 11 provided on the cover body 1, and the first washer 33 disposed in the installation groove 11, a second washer 34 provided at the top end of the bearing outer ring 3, a pressure ring 24 provided at the top end of the second washer 34, and a sliding sleeve 23 fixedly connected to the top end of the pressure ring 24. Sleeve 23 is slidably connected to fixed sleeve 14. A connecting ring 22 is fixedly connected to the top of sleeve 23. An adjusting sleeve 2 is fixedly connected to the connecting ring 22 and threadedly connected to fixed sleeve 14. Fixed sleeve 14 accommodates bearing outer ring 3. Mounting groove 11 accommodates first washer 33. Second washer 34 cooperates with first washer 33 to prevent slippage of bearing outer ring 3. Pressure ring 24 applies pressure to second washer 34. Sleeve 23 connects pressure ring 24 and connecting ring 22. The connecting ring 22 is used to connect the sliding sleeve 23 and the adjusting sleeve 2. By rotating the adjusting sleeve 2, the position of the pressure ring 24 can be adjusted. The bearing outer ring 3 is equipped with the bearing inner ring 32. Multiple rollers 31 are evenly distributed in the gap between the bearing inner ring 32 and the bearing outer ring 3. The bearing consists of the bearing outer ring 3, the rollers 31 and the bearing inner ring 32. A stepped groove 12 is opened in the mounting groove 11 at the position corresponding to the bearing inner ring 32. A through hole 13 is opened in the stepped groove 12. The stepped groove 12 is used to avoid the bearing inner ring. 32. The through hole 13 is used to accommodate the encoder shaft; the fixed sleeve 14 is provided with an external thread 15, and the adjusting sleeve 2 is provided with an internal thread 21, and the internal thread 21 is threadedly connected to the external thread 15. The external thread 15 and the internal thread 21 are used to realize the threaded connection between the adjusting sleeve 2 and the fixed sleeve 14; a convex ring 16 is fixedly connected to the cover 1, and the convex ring 16 is used to cooperate with the encoder housing to achieve a seal; the cover 1 is provided with multiple mounting holes 17, and the mounting holes 17 are used to install screws.

[0020] Working principle: When assembling and using this utility model, the first washer 33 is installed in the mounting groove 11, the bearing consisting of the outer ring 3, roller 31 and inner ring 32 is installed in the fixed sleeve 14, the second washer 34 is installed in the fixed sleeve 14, and the adjusting sleeve 2 is tightened on the fixed sleeve 14. The adjusting sleeve 2 drives the sliding sleeve 23 through the connecting ring 22, the sliding sleeve 23 drives the pressure ring 24, and the pressure ring 24 abuts against the second washer 34. The second washer 34 cooperates with the first washer 33 to prevent the outer ring 3 of the bearing from slipping. The convex ring 16 on the cover 1 is used to cooperate with the encoder housing to achieve a seal. The stepped groove 12 is used to avoid the inner ring 32 of the bearing. The external thread 15 cooperates with the internal thread 21 to achieve a threaded connection between the adjusting sleeve 2 and the fixed sleeve 14. The through hole 13 is used to accommodate the encoder shaft, and the mounting hole 17 is used to install screws.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aluminum cover for an encoder, comprising a cover body (1), characterized in that: A fixing sleeve (14) is fixedly connected to the cover (1). A bearing outer ring (3) is sleeved inside the fixing sleeve (14). A first washer (33) is provided at the bottom end of the bearing outer ring (3). An installation groove (11) is provided on the cover (1), and the first washer (33) is provided in the installation groove (11). A second washer (34) is provided at the top end of the bearing outer ring (3). A pressure ring (24) is provided at the top end of the second washer (34). A sliding sleeve (23) is fixedly connected to the top end of the pressure ring (24), and the sliding sleeve (23) is slidably connected to the fixing sleeve (14). A connecting ring (22) is fixedly connected to the top end of the sliding sleeve (23). An adjusting sleeve (2) is fixedly connected to the connecting ring (22), and the adjusting sleeve (2) is threadedly connected to the fixing sleeve (14).

2. The aluminum cover for an encoder according to claim 1, characterized in that: The bearing outer ring (3) is fitted with a bearing inner ring (32), and multiple rollers (31) are evenly distributed in the gap between the bearing inner ring (32) and the bearing outer ring (3).

3. The aluminum cover for an encoder according to claim 1, characterized in that: A stepped groove (12) is provided in the mounting groove (11) at the position corresponding to the inner ring (32) of the bearing, and a through hole (13) is provided in the stepped groove (12).

4. The aluminum cover for an encoder according to claim 1, characterized in that: The fixed sleeve (14) is provided with an external thread (15), and the adjusting sleeve (2) is provided with an internal thread (21), and the internal thread (21) is threadedly connected to the external thread (15).

5. The aluminum cover for an encoder according to claim 1, characterized in that: A protruding ring (16) is fixedly connected to the cover (1).

6. The aluminum cover for an encoder according to claim 5, characterized in that: The cover (1) has multiple mounting holes (17).