Roller assembly tool for double-row cylindrical roller bearing

Abstract

The utility model discloses a roller assembly tool of a double-row cylindrical roller bearing, which relates to the technical field of bearing assembly, and comprises an annular base, a plurality of limiting grooves are arranged at the top of the annular base, the plurality of limiting grooves are uniformly distributed along the annular direction, the inner diameter of the annular base is matched with the outer diameter of the inner ring of the bearing, and the outer diameter of the annular base is matched with the outer diameter of the inner ring of the bearing. The outer diameter of the annular base is matched with the inner diameter of the bearing outer ring; when the device is used, the rollers are vertically placed in the limiting grooves one by one, then the annular base and a bearing inner ring are placed at the same height, the bearing inner ring is placed on the inner side of the annular base, then the rest parts of the bearing are installed, finally the annular base is taken down, and installation of the bearing is completed. When one row of rollers are positioned and assembled by the roller positioning device, the rollers are prevented from inclining to influence the assembly of the next roller, and the mounting efficiency of the rollers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing assembly, in particular to a roller assembly tool for a double-row cylindrical roller bearing. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] Double-row cylindrical roller bearings are a type of bearing, which consists of an inner ring, an outer ring, two layers of rollers arranged between the inner ring and the outer ring, and a cage arranged between the two layers of rollers. In the prior art, when assembling the bearing, since two rows of rollers need to be assembled and the rollers are relatively small, the rollers are easily tilted when they are installed into the cage pockets, which will scratch the bearing inner ring raceway and affect the bearing rotation accuracy; and the rollers that have been installed in the cage are prone to tilt, affecting the installation of the next roller.

[0004] In view of this, there is an urgent need for a roller assembly tool for a double-row cylindrical roller bearing. Summary of the invention

[0005] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A roller assembly tool for a double-row cylindrical roller bearing comprises: an annular base, a plurality of limit grooves are arranged on the top of the annular base, the plurality of limit grooves are evenly distributed along the annular direction, the inner diameter of the annular base is adapted to the outer diameter of the inner ring of the bearing, and the outer diameter of the annular base is adapted to the inner diameter of the outer ring of the bearing.

[0008] A further feature is that

[0009] The height of the limiting groove is one quarter to one third of the height of the roller.

[0010] The height of the limiting groove is one third of the height of the roller.

[0011] The two sides of the limiting groove are arc surfaces adapted to the roller ring sides.

[0012] The limiting groove passes through the inner side of the annular base.

[0013] The limiting groove passes through the outer side of the annular base.

[0014] The bottom surfaces of the annular bases are on the same plane.

[0015] The limiting groove is provided with one.

[0016] The material of the annular base is Saigang.

[0017] The material of the annular base is polyoxymethylene.

[0018] The above structure of the utility model can achieve the following beneficial effects:

[0019] When assembling the bearing, place the rollers vertically in the limit grooves one by one, then place the annular base and the inner ring of the bearing at the same height, and place the inner ring of the bearing on the inside of the annular base, then clamp the cage on the top of the multiple rollers on the annular base, and then install the other row of rollers into the top of the cage from the arc-shaped notch on the top of the inner ring of the bearing. There is a certain resistance during installation. Press the end face of the roller with any strip tool to easily install the roller into the pocket on the cage. Finally, assemble the outer ring of the bearing, remove the annular base, and complete the installation of the bearing. Use this application to position and assemble one row of rollers to avoid roller tilting, which will affect the assembly of the next roller and speed up the installation efficiency of the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure when used in this embodiment;

[0021] Figure 2 It is a schematic diagram of the structure of this embodiment.

[0022] In the figure: 1. annular base; 2. limiting groove; 3. arc surface. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0025] The following is combined with Figure 1 -Attached Figure 2 This application is described in further detail.

[0026] refer to Figure 1 and Figure 2 The roller assembly tool of a double-row cylindrical roller bearing shown in the figure comprises: an annular base 1, a plurality of limiting grooves 2 are arranged on the top of the annular base 1, the plurality of limiting grooves 2 are evenly distributed along the annular direction, the inner diameter of the annular base 1 is adapted to the outer diameter of the inner ring of the bearing, and the outer diameter of the annular base 1 is adapted to the inner diameter of the outer ring of the bearing. In this way, when assembling the bearing, the rollers are vertically placed in the limiting grooves 2 one by one, and then the annular base 1 and the inner ring of the bearing are placed at the same height, and the inner ring of the bearing is placed on the inner side of the annular base 1, and then the retainer is placed. The card is set on the top of multiple rollers on the annular base 1, and then another row of rollers are installed into the top of the cage from the arc-shaped notch on the top of the inner ring of the bearing. There is a certain resistance during installation. Use any strip tool to press the end face of the roller to easily install the roller into the pocket hole on the cage. Finally, assemble the outer ring of the bearing, remove the annular base 1, and complete the installation of the bearing. Use this application to position and assemble one row of rollers to avoid roller tilting and affect the assembly of the next roller, thereby speeding up the installation efficiency of the roller.

[0027] refer to Figure 2 In order to make the roller installed on the annular base 1 more stably, the height of the limit groove 2 is one-quarter to one-third of the roller height (axial length). In this embodiment, the height of the limit groove 2 is one-third of the roller height. During specific production, adaptive adjustments are made according to needs.

[0028] refer to Figure 2 In order to limit the movement of the roller in the limit groove 2, the two sides of the limit groove 2 are arc surfaces 3 that match the roller ring side. In this way, when the roller is installed, the end of the roller is stuck in the limit groove 2 and will not move radially.

[0029] refer to Figure 2 In order to facilitate the separation of the roller from the annular base 1, the limiting groove 2 passes through the inner side of the annular base 1, and the limiting groove 2 passes through the outer side of the annular base 1, thereby reducing the contact area between the roller and the annular base 1 and also reducing the manufacturing cost of the annular base 1.

[0030] refer to Figure 2 In order to improve the accuracy of installation, the bottom surface of the annular base 1 is in the same plane, that is, the bottom surface of the annular base 1 is flat, so that when assembled with the bearing inner ring, it can be kept in the same plane as the bottom of the bearing inner ring.

[0031] refer to Figure 2 In this embodiment, 26 limit grooves 2 are provided. In actual production, the number and size of the limit grooves 2 are adaptively adjusted according to the number and size of the bearing rollers.

[0032] Further optimized is that the material of the annular base 1 is Sisteel or polyoxymethylene.

[0033] In summary, when assembling the bearing, the rollers are placed vertically in the limit grooves 2 one by one, and then the annular base 1 and the bearing inner ring are placed at the same height, and the bearing inner ring is placed on the inner side of the annular base 1, and then the retaining frame is clamped on the top of the multiple rollers on the annular base 1, and then the other row of rollers are respectively installed into the top of the retaining frame from the arc-shaped notch on the top of the bearing inner ring. There is a certain resistance during installation. Press the end face of the roller with any strip tool to easily install the roller into the pocket on the retaining frame. Finally, assemble the outer ring of the bearing, remove the annular base 1, and complete the installation of the bearing. Use this application to position and assemble one row of rollers to avoid roller tilting and affect the assembly of the next roller, thereby speeding up the installation efficiency of the rollers.

[0034] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A roller assembly tool for a double-row cylindrical roller bearing, characterized in that: include: An annular base (1), wherein a plurality of limiting grooves (2) are arranged on the top of the annular base (1), wherein the plurality of limiting grooves (2) are evenly distributed along the annular direction, wherein the inner diameter of the annular base (1) is adapted to the outer diameter of the inner ring of the bearing, and the outer diameter of the annular base (1) is adapted to the inner diameter of the outer ring of the bearing; Both sides of the limiting groove (2) are arc surfaces (3) adapted to the sides of the roller ring; The limiting groove (2) passes through the inner side of the annular base (1); The limiting groove (2) passes through the outer side of the annular base (1).

2. The roller assembly tool for a double-row cylindrical roller bearing according to claim 1, characterized in that: The height of the limiting groove (2) is one quarter to one third of the height of the roller.

3. The roller assembly tool for a double-row cylindrical roller bearing according to claim 2, characterized in that: The height of the limiting groove (2) is one third of the height of the roller.

4. The roller assembly tool for a double-row cylindrical roller bearing according to claim 1, characterized in that: The bottom surfaces of the annular base (1) are on the same plane.

5. The roller assembly tool for a double-row cylindrical roller bearing according to claim 1, characterized in that: The limiting grooves (2) are provided in 26 numbers.

6. The roller assembly tool for a double-row cylindrical roller bearing according to claim 1, characterized in that: The material of the annular base (1) is Sisteel.

7. The roller assembly tool for a double-row cylindrical roller bearing according to claim 1, characterized in that: The material of the annular base (1) is polyoxymethylene.

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