Auxiliary tooling for assembling cylindrical roller bearings and method of use thereof

Abstract

The present invention belongs to the technical field of rolling bearing assembly, and specifically relates to auxiliary tooling for assembling cylindrical roller bearings and a method for using the same, comprising: a mold body and a plurality of isolation components arranged in the mold body; the mold body is annular, and the plurality of isolation components are evenly distributed along the circumference of the mold body and each isolation component passes through the upper end face and the lower end face of the mold body respectively; the cross-sectional shape of the isolation column is similar to the retaining frame beam, and the roller can be easily placed into the outer raceway from the inside; the present invention makes up for the technical defects of the cumbersome manual equal distribution of rollers and low assembly efficiency during the installation of the original bearing outer components. The present tooling improves manual operations, and with the help of the cooperation of the mold and the isolation components, realizes the equal distribution of rollers in the outer raceway, and ensures the accuracy of bearing assembly; improves assembly efficiency as a whole, and ensures production progress.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling bearing assembly, and in particular relates to an auxiliary tool for assembling a cylindrical roller bearing and a use method thereof, and is applied to assembling a cylindrical roller bearing with a brass cage. Background Art

[0002] Common cylindrical roller bearing structures are classified into N, NJ, and NU types. The NJ type has a double outer ring rib and a single inner ring rib, while the NU type has a double outer ring rib and no inner ring rib. The outer ring, cage, and rollers form the bearing's outer assembly, while the inner and outer assemblies are separable. When assembling these bearings, the rollers, cage, and outer ring must first be assembled, and then the outer assembly is riveted together. Traditionally, the rollers are manually placed into the outer ring grooves, manually maneuvered to evenly distribute the rollers, and then the cage seat is inserted into the gaps between the rollers to achieve assembly and facilitate subsequent riveting of the outer assembly. However, manual adjustment during the roller distribution process is cumbersome, requiring repeated adjustments to the assembly parts according to the assembly requirements. This results in low assembly efficiency and can be harmful to the hands if performed for extended periods of time. Summary of the Invention

[0003] In view of the difficult-to-overcome technical problems existing in the above-mentioned bearing assembly, the purpose of the present invention is to provide an auxiliary tool for assembling cylindrical roller bearings and a method of using the same, which improves manual work, increases assembly efficiency, and ensures production progress.

[0004] To achieve the above-mentioned object, the present invention adopts a technical solution as follows: an auxiliary tool for assembling a cylindrical roller bearing, comprising: a mold body and a plurality of isolation components disposed in the mold body; the mold body is annular, the plurality of isolation components are evenly distributed along the circumference of the mold body, and each isolation component respectively penetrates the upper end surface and the lower end surface of the mold body;

[0005] Furthermore, each isolation component is connected to the mold body in a screw manner, thereby achieving fixation of the isolation component in the mold body;

[0006] Furthermore, the mold is provided with a corresponding number of connection holes that match the plurality of isolation components;

[0007] Furthermore, the inner wall of the connecting hole is provided with a stepped structure that gradually narrows from the lower end surface to the upper end surface of the mold body;

[0008] Furthermore, the inner wall of the connecting hole includes a threaded section and a smooth section, and the isolation component is connected to the mold connecting hole through the threaded section;

[0009] Furthermore, the bottom of the isolation component is flush with the lower end surface of the mold body, and the top of the isolation component extends to the outside of the upper end surface of the mold body to form a certain extension portion;

[0010] Furthermore, the isolation assembly includes a base, a spring, and an isolation column; the upper end surface of the base is connected to one end of the spring, the other end of the spring is connected to the lower end surface of the isolation column, and the top end of the isolation column extends to the outside of the upper end surface of the mold body to form a certain extension portion; the connection hole position that matches the outer diameter of the base is the threaded section of the connection hole, the upper part of the threaded section is a smooth section, the base is connected to the threaded section of the connection hole, and the isolation column contacts the smooth section of the connection hole and moves up and down in the connection hole;

[0011] Furthermore, a protrusion is provided at the center of the upper end surface of the mold body in the outer diameter direction, and a boss is provided near the outer edge of the upper end surface of the mold body. A bearing ring mounting groove is formed between the protrusion at the center of the upper end surface of the mold body and the boss at the outer edge. When in use, the bearing outer ring is placed in the mounting groove of the mold body so that the outer diameter of the bearing outer ring is clearance-matched with the inner wall of the boss, ensuring that the isolation columns evenly distributed on the mold body are concentric with the bearing outer ring.

[0012] Furthermore, the height of the protrusion at the center of the upper end surface of the mold body is the same as the height of the boss at the outer edge. The heights of the two are set by the width of the bearing outer ring rib, so that the inner diameter surface of the rib is flush with the upper surface of the protrusion;

[0013] Furthermore, a plurality of bosses are provided at the outer edge of the mold body, and the plurality of bosses are evenly arranged along the circumference of the mold body;

[0014] Specifically, the number of the bosses is four, and the centerline angle between every two adjacent bosses is 90 degrees.

[0015] Furthermore, a gap is provided on the mold body between each two adjacent bosses, and the gap forms a disassembly area for the bearing assembly, making it easy to remove the assembly from the mold.

[0016] Furthermore, the isolation component is located in the bearing ring mounting groove area on the mold body, the bearing ring is placed in the mounting groove, and a retaining frame is placed on the top of the isolation column of the isolation component, so that each retaining beam of the retaining frame seat corresponds to the top surface position of the isolation column, and the isolation column extends out of the bearing ring on the upper part of the mold body. Several isolation columns form corresponding roller equalizing areas in the bearing ring raceway to achieve the function of equalizing rollers; avoiding the tedious manual adjustment, achieving the purpose of equalizing rollers and improving assembly efficiency.

[0017] Furthermore, the cross-sectional shape of the spacer column is similar to that of the cage beam, and the roller can be easily placed into the outer raceway from the inside.

[0018] The retainer in the present invention is a brass retainer, including a retainer seat and a retainer cover. One side of the retainer seat is provided with a plurality of retainer beams. The retainer cover is provided with connecting holes corresponding to the positions of the plurality of retainer beams. The retainer beams can be inserted into the connecting holes of the retainer cover and connected together through connectors.

[0019] The connection method between the cage seat and the cage cover is usually a riveting method in the prior art.

[0020] The method of using the auxiliary tooling for assembling the cylindrical roller bearing of the present invention is as follows:

[0021] (1) Inserting a plurality of isolation components from the lower end surface of the mold body and screwing them into the connection holes of the mold body through the base of the isolation components, so that the isolation components are fixed in the mold body;

[0022] (2) Place the outer ring of the bearing flat on the upper end surface of the mold body, so that the outer diameter of the outer ring of the bearing and the inner diameter of the boss on the outer edge of the mold body are matched, and ensure that the center of the outer ring of the bearing is concentric with the center of the mold body;

[0023] (3) The tops of several isolation columns extend to the upper end surface of the mold body and form several roller-divided areas in the bearing outer ring raceway. Several rollers are placed on the mold body and pushed radially from the center into the bearing outer ring raceway one by one;

[0024] (4) Press the cage seat down from above the bearing outer ring so that the cage beams of the cage seat correspond one to one with the isolation columns of the isolation components on the mold body;

[0025] (5) After the retainer seat is pressed down into the outer ring of the bearing, remove the above assembly from the mold body;

[0026] The assembly in step (5) refers to the bearing outer ring, the retainer seat and the plurality of rollers. After the assembly is removed, the spring in the isolation component recovers its elastic deformation;

[0027] (6) Press the assembly completed in step (5) onto the retainer cover to form the outer assembly and complete the installation of the bearing outer assembly.

[0028] The technical effects produced by the technical solution of the present invention are:

[0029] To make up for the technical defects of the original manual equal distribution of rollers and low assembly efficiency during the installation of the outer components of the bearing, this tooling improves the manual operation and, with the help of the cooperation of the mold and isolation components, realizes the equal distribution of rollers in the outer raceway and ensures the accuracy of bearing assembly; thus improving the overall assembly efficiency and ensuring the production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is a structural diagram of the auxiliary tooling for assembling the cylindrical roller bearing of the present invention.

[0031] Figure 2 It is a top view of the auxiliary tooling for assembling cylindrical roller bearings of the present invention.

[0032] Figure 3 This is a state diagram of the assembly sequence of the cylindrical roller bearing of the present invention.

[0033] In the figure, 1. mold body, 2. isolation component, 3. threaded section of inner wall of connecting hole, 2.1. base, 2.2. spring, 2.3. isolation column, 1.1. protrusion, 1.2. boss, 1.3. bearing ring mounting groove, 1.4. bearing assembly disassembly area, 4. cage seat, 5. cage cover, 6. bearing outer ring, 7. roller. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figure 1-3 The auxiliary tooling for assembling cylindrical roller bearings shown includes: a mold body 1 and a plurality of isolation components 2 disposed in the mold body 1; the mold body 1 is annular, and the plurality of isolation components 2 are evenly distributed along the circumference of the mold body 1, and each isolation component 2 extends through the upper end surface and the lower end surface of the mold body 1;

[0036] Furthermore, the mold body 1 is provided with a corresponding number of connection holes that match the plurality of isolation components 2;

[0037] Furthermore, the inner wall of the connecting hole is provided with a stepped structure that gradually narrows from the lower end surface direction to the upper end surface direction of the mold body 1;

[0038] Furthermore, the inner wall of the connecting hole includes a threaded section 3 and a smooth section;

[0039] Furthermore, the bottom of the isolation component 2 is flush with the lower end surface of the mold body 1, and the top of the isolation component 2 extends to the outside of the upper end surface of the mold body 1 to form a certain extension portion;

[0040] Furthermore, the isolation assembly 2 includes a base 2.1, a spring 2.2, and an isolation column 2.3; the upper end surface of the base 2.1 is connected to one end of the spring 2.2, the other end of the spring 2.2 is connected to the lower end surface of the isolation column 2.3, and the top of the isolation column 2.3 extends to the outside of the upper end surface of the mold body 1 to form a certain extension; the connection hole position that matches the outer diameter of the base 2.1 is the threaded section 3 of the connection hole, and the upper part of the threaded section 3 is a smooth section. The base 2.1 is connected to the threaded section 3 of the connection hole, and the isolation column 2.3 contacts the smooth section of the connection hole and moves up and down in the connection hole;

[0041] Furthermore, a protrusion 1.1 is provided at the center position of the upper end surface of the mold body 1 in the outer diameter direction, and a boss 1.2 is provided near the outer edge position of the upper end surface of the mold body 1. A bearing ring mounting groove 1.3 is formed between the protrusion 1.1 at the center position of the upper end surface of the mold body 1 and the boss 1.2 at the outer edge position; when in use, the outer ring of the bearing is placed in the mounting groove 1.3 of the mold body 1, so that the outer diameter of the outer ring of the bearing is gap-matched with the inner wall of the boss 1.2.

[0042] In this embodiment, four bosses 1.2 are provided at the outer edge of the mold body 1, and the four bosses 1.2 are evenly arranged along the circumference of the mold body 1; that is, the centerline angle between every two adjacent bosses 1.2 is 90 degrees.

[0043] Furthermore, a gap is provided on the mold body 1 between each two adjacent bosses 1.2, and the gap forms a bearing assembly disassembly area 1.4;

[0044] The isolation component 2 is located in the bearing ring mounting groove 1.3 area on the mold body 1, and the bearing ring is placed in the mounting groove 1.3. A retainer is placed on the top of the isolation column 2.3 of the isolation component 2, so that each retainer beam of the retainer seat 4 corresponds to the top surface position of the isolation column 2.3. The isolation column 2.3 extends out of the bearing ring on the upper part of the mold body 1, and several isolation columns 2.3 form corresponding roller equalizing areas in the bearing ring raceway, thereby realizing the function of equalizing rollers.

[0045] The retainer in the present invention is a brass retainer, which includes a retainer seat 4 and a retainer cover 5. One side of the retainer seat 4 is a plurality of retainer beams. The retainer cover 5 is provided with connecting holes corresponding to the positions of the plurality of retainer beams. The retainer beams can be inserted into the connecting holes of the retainer cover 5 and connected together through connecting parts.

[0046] The method of using the auxiliary tooling for assembling the cylindrical roller bearing according to this embodiment is as follows:

[0047] (1) Insert several isolation components 2 from the lower end surface of the mold body 1 and screw them into the connection holes of the mold body 1 through the base 2.1 of the isolation components 2, so that the isolation components 2 are fixed in the mold body 1;

[0048] (2) Place the bearing outer ring 6 flat on the upper end surface of the mold body 1, so that the outer diameter of the bearing outer ring 6 and the inner diameter of the boss 1.2 on the outer edge of the mold body 1 are matched, and ensure that the center of the bearing outer ring 6 is concentric with the center of the mold body 1;

[0049] (3) The tops of several isolation columns 2.3 extend to the upper end surface of the mold body 1 and form several roller-divided areas in the raceway of the bearing outer ring 6. The several rollers are placed on the mold body 1 and pushed radially from the center into the raceway of the bearing outer ring 6 one by one;

[0050] (4) Press the retainer seat 4 downward from above the bearing outer ring 6 so that the retainer beams of the retainer seat 4 correspond one to one with the isolation columns 2.3 of the isolation components on the mold body 1; during the pressing process of the retainer seat 4, the spring 2.2 in the isolation component is in a compressed state;

[0051] (5) After the retainer seat 4 is pressed down into the bearing outer ring 6, the above assembly is removed from the mold body 1;

[0052] The assembly in step (5) refers to the bearing outer ring 6, the retainer seat 4 and the plurality of rollers. After the assembly is removed, the spring 2.2 in the isolation assembly recovers its elastic deformation;

[0053] (6) Press the assembly completed in step (5) onto the retainer cover 5 to form the outer component, thus completing the installation of the bearing outer component.

[0054] The auxiliary tooling for assembling cylindrical roller bearings of the present invention facilitates the assembly of external components, improves manual work compared to existing assembly methods, increases assembly efficiency, and ensures production progress.

Claims

1. Auxiliary tooling for assembling cylindrical roller bearings, characterized in that: include: A mold body and a plurality of isolation components disposed in the mold body; the mold body is annular, the plurality of isolation components are evenly distributed along the circumference of the mold body, and each isolation component respectively penetrates the upper end surface and the lower end surface of the mold body; Each isolation component is connected to the mold body in a screw manner; The mold body is provided with a corresponding number of connection holes that match the plurality of isolation components; The inner wall of the connecting hole is provided with a stepped structure which gradually narrows from the lower end surface to the upper end surface of the mold body; The inner wall of the connecting hole includes a threaded section and a smooth section, and the isolation component is connected to the mold connecting hole through the threaded section; The isolation assembly includes a base, a spring and an isolation column; the upper end surface of the base is connected to one end of the spring, the other end of the spring is connected to the lower end surface of the isolation column, and the top end of the isolation column extends to the outside of the upper end surface of the mold body to form an extension part; the position of the connecting hole that matches the outer diameter of the base is the threaded section of the connecting hole, and the upper part of the threaded section is a smooth section. The base is connected to the threaded section of the connecting hole, and the isolation column contacts the smooth section of the connecting hole and moves up and down in the connecting hole.

2. The auxiliary tool for assembling cylindrical roller bearings according to claim 1, characterized in that: The lower bottom of the isolation component is flush with the lower end surface of the mold body, and the upper top of the isolation component extends to the outside of the upper end surface of the mold body to form an extension part.

3. The auxiliary tool for assembling cylindrical roller bearings according to claim 1, characterized in that: A protrusion is provided at the center position of the upper end surface of the mold body in the outer diameter direction, and a boss is provided on the upper end surface of the mold body near the outer edge position. A bearing ring mounting groove is formed between the protrusion at the center position of the upper end surface of the mold body and the boss at the outer edge position; the bearing outer ring is placed in the mounting groove of the mold body so that the outer diameter of the bearing outer ring is clearance-matched with the inner wall of the boss.

4. The auxiliary tool for assembling cylindrical roller bearings according to claim 3, characterized in that: The isolation component is located in the bearing ring mounting groove area on the mold body, the bearing ring is placed in the mounting groove, and a retainer is placed on the top of the isolation column of the isolation component. The retainer is a brass retainer, including a retainer seat and a retainer cover. One side of the retainer seat is a plurality of retainer beams, and the retainer cover is provided with connecting holes corresponding to the positions of the plurality of retainer beams. The retainer beams can be inserted into the connecting holes of the retainer cover and connected together through connecting parts. Each retainer beam of the retainer seat corresponds to the top surface position of the isolation column, and the isolation column extends out of the bearing ring on the upper part of the mold body. Several isolation columns form corresponding roller equal distribution areas in the bearing ring raceway.

5. A method for using the auxiliary tool for assembling a cylindrical roller bearing according to any one of claims 1 to 4, characterized in that: (1) Inserting a plurality of isolation components from the lower end surface of the mold body and screwing them into the connection holes of the mold body through the base of the isolation components, so that the isolation components are fixed in the mold body; (2) Place the outer ring of the bearing flat on the upper end surface of the mold body so that the outer diameter of the outer ring of the bearing fits the inner diameter of the boss on the outer edge of the mold body; (3) The tops of several isolation columns extend to the upper end surface of the mold body and form several roller-divided areas in the bearing outer ring raceway. Several rollers are placed on the mold body and pushed radially from the center into the bearing outer ring raceway one by one; (4) Press the cage seat down from above the bearing outer ring so that the cage beams of the cage seat correspond one to one with the isolation columns of the isolation components on the mold body; (5) After the retainer seat is pressed down into the outer ring of the bearing, remove the assembly from the mold body; The assembly in step (5) refers to the bearing outer ring, the retainer seat and the plurality of rollers. After the assembly is removed, the spring in the isolation component recovers its elastic deformation; Press the assembly completed in step (5) onto the retainer cover to form the outer component, thus completing the installation of the bearing outer component.

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