Titanium roller bearing mounting and positioning structure

Abstract

The utility model discloses a titanium roller bearing installing and positioning structure, which relates to the technical field of bearing installing and positioning and comprises a main shaft and a positioning sleeve, a positioning step is arranged on one side of the main shaft, the positioning sleeve is coaxially sleeved on the main shaft, one side face of the positioning sleeve is attached to the positioning step, and a bearing is coaxially sleeved on the main shaft. One side face of the bearing is attached to the side face, away from the positioning step, of the positioning sleeve, the locking assembly is coaxially arranged on the main shaft, and the bearing can be fixed to the main shaft. Through cooperation of the positioning sleeve and the locking assembly, accurate positioning of the bearing and control over the locking torque are achieved, and therefore the titanium roller centering precision is improved, repeated installation is reduced, the labor intensity is lowered, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing installation and positioning technology, specifically to a titanium roller bearing installation and positioning structure. Background Technology

[0002] To ensure the normal rotation of the titanium roller, bearings need to be installed on it. When installing the titanium roller bearings, it is essential to ensure both the accurate positioning of the bearings on the main shaft and the specified tightening torque of the locking sleeve nut.

[0003] Traditional titanium roller bearing installation methods primarily rely on manual tightening using a hook wrench on the locking nut. This method easily leads to bearing displacement on the spindle, making accurate bearing positioning impossible. When the entire assembly is installed into the bearing housing, this misalignment occurs, preventing successful installation of the titanium roller or affecting its alignment. Inaccurate alignment results in vibration and accelerated wear during operation, severely impacting roller lifespan and product quality. Therefore, repeated roller adjustments are necessary, increasing the number of times the roller is repeatedly lifted, raising labor intensity, and reducing installation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a titanium roller bearing installation and positioning structure. Through the cooperation of the positioning sleeve and the locking component, the bearing can be accurately positioned and the locking torque can be controlled, thereby improving the alignment accuracy of the titanium roller, reducing repeated installation, reducing labor intensity, and improving installation efficiency.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a titanium roller bearing mounting and positioning structure, including a main shaft, a positioning step on one side of the main shaft, and a positioning sleeve, the positioning sleeve being coaxially sleeved on the main shaft, and one side of the positioning sleeve being attached to the positioning step;

[0006] The bearing is coaxially sleeved on the main shaft, and one side of the bearing is attached to the side of the positioning sleeve away from the positioning step.

[0007] A locking component is coaxially mounted on the main shaft, which can fix the bearing on the main shaft.

[0008] In some embodiments, the locking assembly includes a threaded sleeve coaxially disposed on the main shaft, and the bearing is coaxially sleeved on the threaded sleeve.

[0009] A locking nut is coaxially sleeved on the main shaft, and one side of the locking nut is attached to the side of the bearing away from the positioning sleeve.

[0010] In some embodiments, the cross-section of the positioning sleeve is an isosceles trapezoid.

[0011] In some embodiments, the positioning sleeve includes two semicircular rings;

[0012] A threaded hole, wherein the threaded hole is laterally disposed at one end of the semi-circular ring;

[0013] The mounting hole extends laterally through the other end of the semicircular ring, and the mounting hole of one semicircular ring is coaxially arranged with the threaded hole of the other semicircular ring.

[0014] A connecting screw is provided, which passes through the mounting hole and is threadedly connected to the threaded hole.

[0015] In some embodiments, the positioning sleeve further includes a limiting ring groove, which is located on the side of the positioning sleeve away from the positioning step and is inserted into the threaded sleeve.

[0016] In some embodiments, the threaded sleeve includes an insertion portion, which is coaxially disposed between the spindle and the bearing;

[0017] The threaded portion is coaxially located on the side of the insertion portion away from the positioning sleeve and is threadedly engaged with the locking nut.

[0018] In some embodiments, the cross-section of the plug portion is an isosceles trapezoid, and the diameter of the plug portion near the positioning sleeve is greater than the diameter of the plug portion near the screw portion.

[0019] In summary, this utility model has the following beneficial effects:

[0020] This invention provides an accurate installation position for the bearing through the cooperation of the positioning step and the positioning sleeve, preventing the bearing from shifting on the main shaft during the locking process. This ensures that the position will not shift when the whole assembly is installed into the bearing housing, allowing the titanium roller to be installed smoothly, reducing the number of times the titanium roller is repeatedly lifted, reducing labor intensity, and improving installation efficiency.

[0021] This utility model adopts a split positioning sleeve, which is easy to install and disassemble, and facilitates the maintenance and replacement of the positioning sleeve. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the positioning sleeve of this utility model;

[0024] Figure 3 This is a side view of the semicircular ring of this utility model;

[0025] Figure 4 This is a top view of the positioning sleeve of this utility model.

[0026] In the diagram: 1. Positioning step; 2. Positioning sleeve; 21. Semicircular ring; 22. Threaded hole; 23. Mounting hole; 24. Limiting ring groove; 3. Connecting screw; 4. Threaded sleeve; 5. Bearing; 6. Main shaft; 7. Locking nut. Detailed Implementation

[0027] The technical solutions 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, and 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.

[0028] refer to Figure 1-4 A titanium roller bearing mounting and positioning structure includes a main shaft 6, a positioning step 1, a positioning sleeve 2, a bearing 5, and a locking assembly. The positioning step 1 is provided on one side of the main shaft 6, which provides a positioning reference for the positioning sleeve 2, ensuring the accurate installation position of the positioning sleeve 2 on the main shaft 6. The positioning sleeve 2 is coaxially sleeved on the main shaft 6, and one side of the positioning sleeve 2 is attached to the positioning step 1. The length of the positioning sleeve 2 on the main shaft 6 is equal to the distance between the bearing 5 and the positioning step 1, so as to provide a positioning reference for the bearing 5 and achieve accurate installation position of the bearing 5 on the main shaft 6. The positioning sleeve 2 can be made of wear-resistant alloy tool steel to ensure that it will not deform due to friction during installation. The bearing 5 is coaxially sleeved on the main shaft 6, and one side of the bearing 5 is attached to the side of the positioning sleeve 2 away from the positioning step 1, so as to ensure accurate axial position of the bearing 5 on the main shaft 6. The locking assembly is coaxially provided on the main shaft 6 to fix the bearing 5 on the main shaft 6.

[0029] In some embodiments, the locking assembly includes a threaded sleeve 4 and a locking nut 7. The threaded sleeve 4 is coaxially mounted on the main shaft 6, and a bearing 5 is coaxially sleeved on the threaded sleeve 4. The locking nut 7 is coaxially sleeved on the main shaft 6, and one side of the locking nut 7 is attached to the side of the bearing 5 away from the positioning sleeve 2. By rotating the locking nut 7, it is screwed into the threaded sleeve 4, generating an axial force that presses the bearing 5 onto the positioning sleeve 2, thereby fixing the bearing 5 on the main shaft 6.

[0030] In some embodiments, the cross-section of the positioning sleeve 2 can be an isosceles trapezoid, and the diameter of the positioning sleeve 2 on the side near the bearing 5 is larger than the diameter of the positioning sleeve 2 on the side near the positioning step 1. This reduces the overall weight of the positioning sleeve 2, lowers the load-bearing pressure on the spindle 6, and facilitates installation. At the same time, it ensures the contact area between the positioning sleeve 2 and the positioning step 1 and the inner diameter of the bearing 5.

[0031] In some embodiments, the positioning sleeve 2 consists of two semicircular rings 21. This split design facilitates installation and disassembly. Specifically, a threaded hole 22 is provided laterally at one end of each semicircular ring 21, and a mounting hole 23 is provided laterally through the other end. The mounting hole 23 of one semicircular ring 21 is coaxially arranged with the threaded hole 22 of the other semicircular ring 21. By passing a connecting screw 3 through the mounting hole 23 and threadedly connecting it to the threaded hole 22, the two semicircular rings 21 can be firmly connected together to form a complete positioning sleeve 2.

[0032] In some embodiments, the positioning sleeve 2 further includes a limiting ring groove 24, which is located on the side of the positioning sleeve 2 away from the positioning step 1 and is inserted into the threaded sleeve 4 to achieve positioning of the threaded sleeve 4.

[0033] In some embodiments, the threaded sleeve 4 includes an insertion portion and a threaded portion. The insertion portion is coaxially disposed between the main shaft 6 and the bearing 5, and the threaded portion is coaxially disposed on the side of the insertion portion away from the positioning sleeve 2, and is threadedly engaged with the locking nut 7. By reducing the thread length on the threaded sleeve 4, the tightness of the connection between the threaded sleeve 4 and the inner diameter of the bearing 5 can be improved.

[0034] In some embodiments, the cross-section of the plug portion can be an isosceles trapezoid, and the diameter of the plug portion near the positioning sleeve 2 is larger than the diameter of the plug portion near the screw portion, so that when the locking nut 7 pushes the bearing 5 to move towards the positioning sleeve 2, the gap between the inner diameter of the bearing 5 and the plug portion is reduced, thereby improving the tightness of the connection between the two.

[0035] The specific working principle is as follows:

[0036] When installing the titanium roller bearing, first put the two semicircular rings 21 of the positioning sleeve 2 on the main shaft 6, and connect them to the threaded hole 22 by passing the connecting screw 3 through the mounting hole 23 and threading it. Connect them to form a complete positioning sleeve 2, so that one side of the positioning sleeve 2 fits against the positioning step 1.

[0037] Then, insert the insertion part of the threaded sleeve 4 into the limiting ring groove 24 of the positioning sleeve 2. Next, put the bearing 5 on the threaded sleeve 4, put the locking nut 7 on the main shaft 6 and fit it against the side of the bearing 5 away from the positioning sleeve 2. Rotate the locking nut 7 to screw it into the threaded part of the threaded sleeve 4, gradually generating axial force, pressing the bearing 5 towards the positioning sleeve 2, so that one side of it is pressed against the side of the positioning sleeve 2 away from the positioning step 1, thereby fixing the bearing 5 on the main shaft 6.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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. A titanium roller bearing mounting and positioning structure, comprising a main shaft (6), wherein a positioning step (1) is provided on one side of the main shaft (6), characterized in that: It also includes a positioning sleeve (2), which is coaxially sleeved on the main shaft (6), and one side of the positioning sleeve (2) is attached to the positioning step (1); The bearing (5) is coaxially sleeved on the main shaft (6), and one side of the bearing (5) is attached to the side of the positioning sleeve (2) away from the positioning step (1); A locking component is coaxially mounted on the main shaft (6) to fix the bearing (5) on the main shaft (6).

2. The titanium roller bearing mounting and positioning structure according to claim 1, characterized in that: The locking assembly includes a threaded sleeve (4), which is coaxially mounted on the main shaft (6), and the bearing (5) is coaxially mounted on the threaded sleeve (4). Locking nut (7), the locking nut (7) is coaxially sleeved on the main shaft (6), and one side of the locking nut (7) is attached to the side of the bearing (5) away from the positioning sleeve (2).

3. The titanium roller bearing mounting and positioning structure according to claim 1, characterized in that: The cross-section of the positioning sleeve (2) is an isosceles trapezoid.

4. The titanium roller bearing mounting and positioning structure according to claim 1, characterized in that: The positioning sleeve (2) includes two semi-circular rings (21); A threaded hole (22) is provided laterally at one end of the semi-circular ring (21); Mounting hole (23) extends laterally through the other end of the semicircular ring (21), and the mounting hole (23) of one semicircular ring (21) is coaxially arranged with the threaded hole (22) of the other semicircular ring (21); A connecting screw (3) passes through the mounting hole (23) and is threadedly connected to the threaded hole (22).

5. The titanium roller bearing mounting and positioning structure according to claim 2, characterized in that: The positioning sleeve (2) also includes a limiting ring groove (24), which is located on the side of the positioning sleeve (2) away from the positioning step (1) and is engaged with the threaded sleeve (4).

6. The titanium roller bearing mounting and positioning structure according to claim 2, characterized in that: The threaded sleeve (4) includes an insertion part, which is coaxially disposed between the main shaft (6) and the bearing (5); The threaded part is coaxially located on the side of the plug-in part away from the positioning sleeve (2) and is threadedly engaged with the locking nut (7).

7. The titanium roller bearing mounting and positioning structure according to claim 6, characterized in that: The cross-section of the plug portion is an isosceles trapezoid, and the diameter of the plug portion near the positioning sleeve (2) is greater than the diameter of the plug portion near the screw portion.

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