Lengthened inner ring bearing rolling body assembly tool

Abstract

The utility model provides an assembly tool for a bearing rolling body with a lengthened inner ring. The assembly tool comprises a supporting part, a platform part and a positioning part, the supporting part, the platform part and the positioning part are all annular and are concentrically arranged, and the inner diameters of the supporting part, the platform part and the positioning part are equal; the peripheral surface of the supporting part and the tapered roller retainer to be assembled are arranged in a clearance manner; the outer diameter of the platform part is larger than the diameter of the small end face of the to-be-assembled tapered roller retainer, and the platform part makes contact with the small end face of the to-be-assembled tapered roller retainer. The lengthened inner ring to be assembled comprises a raceway part and a lengthened part, and an annular boss is arranged at the joint of the raceway part and the lengthened part; the inner diameter of the supporting part is larger than the outer diameter of the lengthening part and smaller than the outer diameter of the annular boss. Roller assembly can be completed through gravity falling of the inner ring, the roller assembly precision is guaranteed, meanwhile, the manual labor intensity can be lowered, personal safety is guaranteed, the assembly rhythm is accelerated, and the product assembly efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lengthened inner ring bearings, in particular to an assembly tool for a rolling element of a lengthened inner ring bearing. Background Art

[0002] Currently, tapered roller bearings, as a highly versatile and standardized foundational mechanical component, can withstand greater radial and axial loads than other types of rolling bearings and are widely used in industries such as automobiles, rolling mills, mining, metallurgy, and plastics machinery. With technological advancements in the international bearing industry, customer demand for products is gradually shifting toward integration and unitization. Bearing shapes are becoming increasingly complex, and existing processing techniques are no longer sufficient for the processing of special-shaped bearings, particularly those requiring special-shaped, extended inner rings.

[0003] If conventional assembly technology is used, the extended inner ring product uses spacers to assemble the rolling elements. After the rolling elements are fully loaded, the rings are placed into the cage. The cage and rolling elements must be manually lifted upward, increasing labor intensity and making the rolling elements prone to falling during the upward movement. Therefore, it is necessary to conduct research on assembly technology for this special-shaped extended inner ring bearing and design assembly tooling to ensure assembly accuracy, prevent rollers from falling, and ensure personal safety. This is to achieve the assembly and processing of complex high-end products and improve production efficiency. Utility Model Content

[0004] In view of the above problems, the purpose of this application is to provide an extended inner ring bearing rolling element assembly tool, so that it can utilize the gravity of the inner ring to complete the roller assembly, ensure the roller assembly accuracy, and at the same time reduce manual labor intensity, ensure personal safety, speed up the assembly cycle, and improve the efficiency of product assembly.

[0005] In order to achieve some or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: an assembly tool for an extended inner ring bearing rolling element, comprising a support part, a platform part and a positioning part; the support part is arranged at one end of the platform part, and the positioning part is arranged at the other end of the platform part; the support part, the platform part and the positioning part are all circular rings, the support part, the platform part and the positioning part are concentrically arranged, and the inner diameters of the support part, the platform part and the positioning part are equal; a gap is set between the outer circumference of the support part and the tapered roller retainer to be assembled; the outer diameter of the platform part is larger than the small end face diameter of the tapered roller retainer to be assembled, and the platform part contacts the small end face of the tapered roller retainer to be assembled; the extended inner ring to be assembled comprises a raceway part and an extended part, and an annular boss is arranged at the connection between the raceway part and the extended part; the inner diameter of the support part is larger than the outer diameter of the extended part, and the inner diameter of the support part is smaller than the outer diameter of the annular boss.

[0006] Furthermore, the end surface of the support portion is provided with a 5° outward slope; the end surface of the support portion contacts the small end surface of the tapered roller to be assembled.

[0007] Furthermore, the total height of the supporting portion, the platform portion and the positioning portion is greater than the height of the extension portion.

[0008] Furthermore, the hardness of the annular boss is smaller than the hardness of the tapered roller to be assembled.

[0009] Furthermore, the outer diameter of the platform portion is larger than the outer diameter of the positioning portion.

[0010] Furthermore, the assembly tool for adding rolling elements of the tapered roller bearing to be assembled is an integrated arrangement.

[0011] Compared with the existing technology, the beneficial effects of the utility model are: providing an extended inner ring bearing rolling element assembly tool with a reasonable structure and easy application; utilizing the gravity drop of the ring to complete the simultaneous assembly of all rolling elements, ensuring the product assembly accuracy, and at the same time reducing manual labor intensity, ensuring personal safety, speeding up the assembly cycle, and improving the efficiency of product assembly.

[0012] Place the small end face of the tapered roller cage to be assembled on the platform part, the end face of the rolling element contacts the end face of the support part, and the rolling element naturally tilts close to one side of the cage; the outer diameter of the annular boss of the extended inner ring is slightly larger than the inner diameter of the support part. When the extended inner ring falls, the annular boss hits the circumference of the rolling element, generating an outward squeezing force on the rolling element, and the rolling element is assembled into the cage pocket accordingly, achieving the technical effect of assembling all rolling elements at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the tapered roller of the utility model when it is not assembled into the cage;

[0014] Figure 2 This is a schematic diagram of the structure of the tapered roller when it is assembled into the cage;

[0015] Figure 3 It is a structural diagram of the utility model;

[0016] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0017] Figure 5 Schematic diagram of conventional assembly process;

[0018] In the figure: 1. Support part; 2. Platform part; 3. Positioning part; 4. Extended inner ring to be assembled; 5. Raceway part; 6. Extended part; 7. Annular boss; 8. Tapered roller cage to be assembled; 801. Small end face of cage; 9. Tapered roller. DETAILED DESCRIPTION

[0019] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] See attached Figure 1-5 , a tool for assembling rolling elements of an extended inner ring bearing, characterized in that: it includes a support portion 1, a platform portion 2 and a positioning portion 3; the support portion 1 is arranged at one end of the platform portion 2, and the positioning portion 3 is arranged at the other end of the platform portion 2; the support portion 1, the platform portion 2 and the positioning portion 3 are all annular, the support portion 1, the platform portion 2 and the positioning portion 3 are concentrically arranged, and the inner diameters of the support portion 1, the platform portion 2 and the positioning portion 3 are equal; a gap is set between the outer circumference of the support portion 1 and the tapered roller retainer 8 to be assembled; the outer diameter of the platform portion 2 is larger than the outer diameter of the tapered roller retainer to be assembled 8, the platform portion 2 is in contact with the small end face of the tapered roller retainer 8 to be assembled; the extended inner ring 4 to be assembled includes a raceway portion 5 and an extended portion 6, and an annular boss 7 is provided at the connection between the raceway portion 5 and the extended portion 6; the inner diameter of the support portion 1 is slightly larger than the outer diameter of the extended portion 6, and the extended portion 6 does not generate friction with the tooling; the inner diameter of the support portion 1 is slightly smaller than the outer diameter of the annular boss 7, and the extended inner ring falls until the annular boss 7 rests on the support portion 1. The annular boss 7 is hung on the support portion 1, and plays a role in fixing the position of the extended inner ring 4 to be assembled.

[0021] The end face of the support portion 1 is provided with a 5° outward slope, and the end face of the support portion 1 forms an angle of 5° with the horizontal plane; the end face of the support portion 1 contacts the small end face of the tapered roller 9 to be assembled; setting the 5° outward slope is more conducive to the rolling body tilting toward one side of the cage, which facilitates assembly.

[0022] The total height of the support portion 1, platform portion 2 and positioning portion 3 is greater than the height of the extension portion 6; when the rolling element is assembled, the extension portion 6 falls completely into the tooling without touching the ground, thereby avoiding wear of the extended inner ring.

[0023] The hardness of the annular boss 7 is smaller than that of the tapered roller 9 to be assembled. When the extended inner ring falls, the annular boss 7 hits the circumferential surface of the rolling body, thereby reducing the wear on the tapered roller 9 to be assembled.

[0024] The outer diameter of the platform portion 2 is larger than the outer diameter of the positioning portion 3 .

[0025] The described tooling for assembling the rolling element of the tapered roller bearing 9 to be assembled is an integrated arrangement.

[0026] In conventional assembly technology, gaskets are used to assemble the rolling elements of the extended inner ring product. After the rolling elements are placed, the rings are placed in the cage. The cage and rolling elements must be manually lifted upward to complete the assembly, which increases the labor intensity of the workers. The rolling elements are easy to fall during the upward movement, reducing assembly efficiency.

[0027] The tooling used in this application is designed to manually place the rolling elements and cages on the tooling. Due to the 5° slope of the support, the rolling elements naturally tilt toward the outer cages after being placed on the support. The extended inner ring is then placed in the center of the cage, allowing the extended inner ring to fall under its own gravity to complete the final assembly, allowing all rolling elements to be assembled simultaneously. This ensures product assembly accuracy, reduces labor intensity, ensures personal safety, prevents rolling elements from falling, speeds up assembly time, and improves product assembly efficiency.

[0028] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A tool for assembling rolling elements of a lengthened inner ring bearing, characterized by: It includes a support part, a platform part and a positioning part; the support part is arranged at one end of the platform part, and the positioning part is arranged at the other end of the platform part; the support part, the platform part and the positioning part are all circular rings, and the support part, the platform part and the positioning part are concentrically arranged, and the inner diameters of the support part, the platform part and the positioning part are equal; a gap is set between the outer circumference of the support part and the tapered roller retainer to be assembled; the outer diameter of the platform part is larger than the small end face diameter of the tapered roller retainer to be assembled, and the platform part is in contact with the small end face of the tapered roller retainer to be assembled; the extended inner ring to be assembled includes a raceway part and an extended part, and an annular boss is arranged at the connection between the raceway part and the extended part; the inner diameter of the support part is larger than the outer diameter of the extended part, and the inner diameter of the support part is smaller than the outer diameter of the annular boss.

2. The assembly tool for the rolling element of the extended inner ring bearing according to claim 1, characterized in that: The end surface of the support portion is provided with a 5° outward slope; the end surface of the support portion contacts the end surface of the tapered roller to be assembled.

3. The assembly tool for the rolling element of the extended inner ring bearing according to claim 1, characterized in that: The total height of the supporting portion, the platform portion and the positioning portion is greater than the height of the extension portion.

4. The assembly tool for the rolling element of the extended inner ring bearing according to claim 1, characterized in that: The hardness of the annular boss is smaller than the hardness of the tapered roller to be assembled.

5. The assembly tool for the rolling element of the extended inner ring bearing according to claim 1, characterized in that: The outer diameter of the platform portion is larger than the outer diameter of the positioning portion.

6. The assembly tool for the rolling element of the extended inner ring bearing according to claim 1, characterized in that: The described extended inner ring bearing rolling element assembly tool is an integrated arrangement.

Images