Integrated special bearing

Abstract

The utility model discloses an integrated special bearing which comprises a shaft body and a second installation step, a receding groove and a threading hole are formed in the shaft body, a first installation step is arranged on the outer wall of the shaft body, a first counterbore and a second counterbore are formed in the shaft body, a tool withdrawal groove is formed in the shaft body, and the second installation step is arranged on the outer wall of the shaft body. The second installation step is arranged below the first installation step, and a third installation step is arranged below the second installation step. According to the integrated special bearing, the first mounting step, the second mounting step and the third mounting step are respectively used for mounting a motor rotor, an encoder and an external bearing, namely, the integrated special bearing is supported and limited through the first mounting step, the second mounting step and the third mounting step; and the first counterbore and the second counterbore can enable the head of the bolt inside to sink, so that the head of the bolt is prevented from being exposed to influence the assembly of subsequent accessories, and the structure of the device is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated special bearings, and specifically relates to an integrated special bearing. Background Technique

[0002] A bearing is an important component in mechanical equipment. Its main function is to support a mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. The integrated bearing belongs to one type of bearing. After retrieval, it is found that a typical bearing in the prior art is the integrated bearing seat with the publication number CN107588110A, which includes a base and a fixing frame. The fixing frame includes a lower fixing ring, a fixing seat, an upper fixing ring, a connecting plate, an outer ring, rolling balls, an inner ring, and a cage. A groove matching with the lower fixing ring is provided in the middle of the base. The bottom of the lower fixing ring is fixed on the base. Fixing seats are symmetrically fixed on both sides of the base where the lower fixing ring is located, and the fixing seats are fixedly connected with the lower fixing ring. The horizontal height of the fixing seats is the same as that of the lower fixing ring. The upper fixing ring is located at the top of the lower fixing ring. Connecting plates are symmetrically fixed on both sides of the upper fixing ring, and the bottom horizontal height of the connecting plates is the same as that of the bottom of the upper fixing ring. Through holes are symmetrically provided on the connecting plates. Its main feature is that positioning pins are fixed at the bottom of the connecting plates and the top of the fixing seats. Through the positioning pins, the accuracy and stability of the fixation between the upper fixing ring and the lower fixing ring can be increased, thereby ensuring the smoothness of rotation.

[0003] To sum up, the outer wall of the existing integrated bearing is smooth, that is, it cannot support and limit the corresponding connecting equipment, resulting in poor stability at the connection between the two. Aiming at the above problems, the existing equipment needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an integrated special bearing to solve the problem that the outer wall of the existing integrated bearing is smooth, that is, it cannot support and limit the corresponding connecting equipment, resulting in poor stability at the connection between the two as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an integrated special bearing, including a shaft body and a second installation step.

[0006] A relief groove and a wire threading hole are opened inside the shaft body, and a first installation step is provided on the outer wall of the shaft body. A first counterbore and a second counterbore are opened on the shaft body, and a relief groove is opened on the shaft body. The second installation step is arranged below the first installation step, and a third installation step is arranged below the second installation step.

[0007] Preferably, the relief groove is arranged below the wire threading hole, and the diameter of the relief groove is larger than that of the wire threading hole.

[0008] Preferably, the first countersunk holes are arranged in an annular array at the top of the shaft body, and the first countersunk holes are arranged outside the wire passing holes.

[0009] Preferably, the second countersunk holes are arranged outside the first countersunk holes, and the diameter of the second countersunk holes is smaller than that of the first countersunk holes.

[0010] Preferably, the first mounting step is arranged at the outer top of the shaft body, and the first mounting step is arranged outside the first countersunk holes.

[0011] Preferably, the diameter of the second mounting step is smaller than that of the third mounting step, and the third mounting step is arranged outside the second countersunk holes.

[0012] Preferably, the relief grooves are formed on the outer wall of the shaft body, and there are two groups of relief grooves.

[0013] Preferably, the relief grooves are located on the upper and lower sides of the third mounting step, and the diameter of the relief grooves decreases from top to bottom.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this integrated special bearing,

[0015] (1) By the combined use of the first mounting step, the second mounting step and the third mounting step, the present utility model can effectively solve the problem that the outer wall of the existing integrated bearing is smooth, that is, it cannot support and limit the corresponding connecting device, resulting in poor stability at the connection between the two. The first mounting step, the second mounting step and the third mounting step are respectively used to mount the motor rotor, the encoder and the external bearing, that is, to support and limit them through the first mounting step, the second mounting step and the third mounting step, thereby improving the connection stability;

[0016] (2) By the combined use of the first countersunk holes and the second countersunk holes, the present utility model can effectively solve the problem that the mounting holes on the existing integrated bearing are all O-shaped grooves, so that the bolt heads for fixing are exposed, which in turn affects the subsequent assembly. The first countersunk holes and the second countersunk holes can sink the bolt heads inside them, thereby preventing their heads from being exposed and affecting the assembly of subsequent accessories, thus optimizing the structure of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the schematic main sectional structure view of the present utility model;

[0018] Figure 2 is the schematic top view structure of the present utility model;

[0019] Figure 3This is a partial structural schematic diagram of the positions of the first countersunk hole and the second countersunk hole of the present utility model on the shaft body.

[0020] In the figure: 1. Shaft body; 2. Relief groove; 3. First countersunk hole; 4. Second countersunk hole; 5. Thread passing hole; 6. First installation step; 7. Second installation step; 8. Third installation step; 9. Relief groove. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3 , the present utility model provides a technical solution: an integrated special bearing,

[0023] Embodiment 1

[0024] As Figure 1 and Figure 2 shown, a relief groove 2 and a thread passing hole 5 are provided inside the shaft body 1, and a first installation step 6 is provided on the outer wall of the shaft body 1. A first countersunk hole 3 and a second countersunk hole 4 are provided on the shaft body 1, and a relief groove 9 is provided on the shaft body 1. The second installation step 7 is provided below the first installation step 6, and a third installation step 8 is provided below the second installation step 7. At the same time, the inner ring of the device is non-standard customized.

[0025] In a further embodiment, the relief groove 2 is provided below the thread passing hole 5, and the diameter of the relief groove 2 is larger than the diameter of the thread passing hole 5.

[0026] In a further embodiment, the first countersunk holes 3 are arranged in an annular array on the top of the shaft body 1, and the first countersunk holes 3 are provided outside the thread passing hole 5.

[0027] In a further embodiment, the second countersunk holes 4 are provided outside the first countersunk holes 3, and the diameter of the second countersunk holes 4 is smaller than the diameter of the first countersunk holes 3.

[0028] In a further embodiment, the relief grooves 9 are provided on the outer wall of the shaft body 1, and there are two groups of relief grooves 9.

[0029] In a further embodiment, the relief grooves 9 are located on the upper and lower sides of the third installation step 8, and the diameter of the relief grooves 9 decreases from top to bottom.

[0030] Specifically, during the actual working process, the staff can respectively install the motor rotor, the encoder, and the external bearing on the first installation step 6, the second installation step 7, and the third installation step 8, and then use external bolts to penetrate the first countersunk hole 3 and the second countersunk hole 4 for installation and fixation.

[0031] Embodiment 2

[0032] This embodiment is a further description of the above-mentioned embodiment. It should be understood that this embodiment includes all the foregoing technical features and makes a further specific description.

[0033] As Figure 1 、 Figure 2 and Figure 3 shown, in a further embodiment, the first installation step 6 is provided at the outer top of the shaft body 1, and the first installation step 6 is provided outside the first countersunk hole 3.

[0034] In a further embodiment, the diameter of the second installation step 7 is smaller than the diameter of the third installation step 8, and the third installation step 8 is provided outside the second countersunk hole 4.

[0035] Specifically, the first countersunk hole 3 and the second countersunk hole 4 are preferably 10-M5 and 6-M3 respectively.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated special bearing, comprising a shaft body (1) and a second mounting step (7), characterized in that: The shaft body (1) is provided with a clearance groove (2) and a threading hole (5) inside, and a first mounting step (6) is provided on the outer wall of the shaft body (1), a first countersunk hole (3) and a second countersunk hole (4) are provided on the shaft body (1), and a tool withdrawal groove (9) is provided on the shaft body (1), the second mounting step (7) is provided below the first mounting step (6), and a third mounting step (8) is provided below the second mounting step (7).

2. The one-piece special bearing according to claim 1, characterized in that: The clearance groove (2) is arranged below the threading hole (5), and the diameter of the clearance groove (2) is greater than the diameter of the threading hole (5).

3. The one-piece special bearing according to claim 1, characterized in that: The first countersunk holes (3) are arranged in a circular array on the top of the shaft body (1), and the first countersunk holes (3) are arranged on the outside of the threading holes (5).

4. The one-piece special bearing according to claim 1, characterized in that: The second countersunk hole (4) is arranged outside the first countersunk hole (3), and the diameter of the second countersunk hole (4) is smaller than the diameter of the first countersunk hole (3).

5. The one-piece special bearing according to claim 1, characterized in that: The first mounting step (6) is arranged at the top of the outer side of the shaft body (1), and the first mounting step (6) is arranged on the outer side of the first countersunk hole (3).

6. The one-piece special bearing according to claim 1, characterized in that: The diameter of the second mounting step (7) is smaller than the diameter of the third mounting step (8), and the third mounting step (8) is arranged outside the second countersunk hole (4).

7. The one-piece special bearing according to claim 1, characterized in that: The tool retreat grooves (9) are formed on the outer wall of the shaft body (1), and two groups of tool retreat grooves (9) are provided.

8. The one-piece special bearing according to claim 1, characterized in that: The tool retreat groove (9) is located at the upper and lower sides of the third installation step (8), and the diameter of the tool retreat groove (9) decreases from top to bottom.

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