CN213052559U

CN213052559U - Bearing ring forges reaming mould

Info

Publication number: CN213052559U
Application number: CN202021290454.4U
Authority: CN
Inventors: 段少杰; 刘净卫; 孟志强; 曹俊峰
Original assignee: LUOYANG LUOLING BEARING SCIENCE AND TECHNOLOGY CO LTD
Current assignee: LUOYANG LUOLING BEARING SCIENCE AND TECHNOLOGY CO LTD
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-04-27
Anticipated expiration: 2030-07-06

Abstract

A bearing ring forging and reaming die relates to a reaming die, which comprises a rolling wheel outer ring and a rolling wheel inner ring, wherein the inner surface of the rolling wheel outer ring is provided with the rolling wheel inner ring in interference fit, the rolling wheel outer ring is made of H13 die steel, the rolling wheel inner ring is made of No. 45 steel, the junction surface of the rolling wheel outer ring and the rolling wheel inner ring is provided with at least one key slot, a key strip is arranged in the key slot, the key slots are all arranged along the axial direction of the rolling wheel outer ring and the rolling wheel inner ring, two ends of a half key slot on the rolling wheel outer ring are respectively arranged between two end surfaces on the inner surface of the rolling wheel outer ring, two grooves are arranged on the outer surface of the rolling wheel outer ring at intervals along the circumferential direction, and an arc convex ring is arranged in the middle of the bottom of each groove; the utility model discloses simple structure, reduced bearing manufacturing cost and raw and other materials consumption, improved material utilization.

Description

Bearing ring forges reaming mould

Technical Field

The utility model relates to a reaming mould especially relates to a bearing ring forges reaming mould.

Background

It is known that in the process of forging bearing ring, the production of the ring belongs to hot working, the production speed is high, the temperature of blank is high, the abrasion of the die is fast, the failure is fast, the abrasion speed of the rolling wheel is particularly high, the existing integral rolling wheel is made of chrome molybdenum copper casting, the casting has casting cavity risk, the rolling wheel is large in size, the hardening layer of heat treatment is limited, the hardness is uneven, the local hardness is low, the local hardness is not wear-resistant, if the hardness of the heat treatment quenching of the material is too high, although the wear resistance can be enhanced, the brittleness is increased, the die can fall off in the production, and the service life of the rolling wheel is low due to various factors. The height of a product ring is increased when the width of the rolling wheel is worn, raw materials are wasted, turning amount of a next process is increased, turning efficiency is affected, the service life of a turning tool is shortened, meanwhile, the height of a forged piece is not uniform, the difference is large, the center of a ring roller path cannot be accurately positioned during turning, waste risk of ring roller path materials exists, if the rolling wheel is frequently replaced, the cost of a die is increased, and finally the manufacturing cost of a bearing is increased.

Disclosure of Invention

In order to overcome not enough among the background art, the utility model discloses a bearing ring forges reaming mould.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a bearing ring forges reaming mould, including rolling wheel outer loop and rolling wheel inner ring, be equipped with interference fit's rolling wheel inner ring at the inner face of rolling wheel outer loop, the rolling wheel outer loop is H13 mould steel, the rolling wheel inner ring is 45# steel, seted up at least one keyway on the faying face of rolling wheel outer loop and rolling wheel inner ring, be equipped with the key strip in the keyway, the keyway is all seted up along the rolling wheel outer loop, the axial direction of rolling wheel inner ring, the both ends of the first keyway of rolling wheel outer loop are seted up respectively between the both ends face of rolling wheel outer loop inner ring inner face, the both ends of the first keyway of rolling wheel inner ring are seted up respectively between the both ends face of rolling wheel inner ring outside, it is equipped with two recesses to separate along the circumferencial direction on the outside of rolling wheel outer loop, be equipped with arc bulge loop in.

And the bearing ring forging and reaming die is characterized in that a half key groove on the outer ring of the rolling wheel is arranged corresponding to a half key groove on the inner ring of the rolling wheel.

The bearing ring forging and reaming die is characterized in that the bearing rings are arranged in the grooves and matched with the outer ring of the rolling wheel.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

the bearing ring forging and reaming die has the advantages that the outer ring of the rolling wheel is made of H13 die steel, the material has strong wear resistance, the size is small compared with that of an integral rolling wheel, the heat treatment hardenability is enhanced, and the hardness of the rolling wheel is ensured; the inner ring of the rolling wheel is made of 45# steel, so that the cost is low; the outer ring of the rolling wheel and the inner ring of the rolling wheel are in interference fit to insert the key strips into the key grooves on the joint surface of the outer ring of the rolling wheel and the inner ring of the rolling wheel, so that the outer ring of the rolling wheel and the inner ring of the rolling wheel are prevented from rotating mutually; the utility model discloses simple structure, reduced bearing manufacturing cost and raw and other materials consumption, improved material utilization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a side view of the present invention;

in the figure: 1. a rolling wheel outer ring; 2. a rolling wheel inner ring; 3. a key bar; 4. and (4) bearing rings.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The bearing ring forging and reaming die combined with the attached drawing 1 comprises a rolling wheel outer ring 1 and a rolling wheel inner ring 2, wherein the inner surface of the rolling wheel outer ring 1 is provided with the rolling wheel inner ring 2 in interference fit, the rolling wheel outer ring 1 is made of H13 die steel, the rolling wheel inner ring 2 is made of No. 45 steel, at least one key groove is formed in the combining surface of the rolling wheel outer ring 1 and the rolling wheel inner ring 2, a key strip 3 is arranged in the key groove, the key grooves are formed in the axial direction of the rolling wheel outer ring 1 and the rolling wheel inner ring 2, two ends of the upper half key groove of the rolling wheel outer ring 1 are respectively arranged between two end surfaces of the inner surface of the rolling wheel outer ring 1, two ends of the upper half key groove of the rolling wheel inner ring 2 are respectively arranged between two end surfaces of the outer surface of the rolling wheel inner ring 2, two grooves are arranged on the outer surface of the rolling wheel outer ring 1 in the circumferential.

And the bearing ring forging and reaming die is characterized in that a half key groove on the outer ring 1 of the rolling wheel is arranged corresponding to a half key groove on the inner ring 2 of the rolling wheel.

The bearing ring forging and reaming die is characterized in that the bearing rings 4 are arranged in the grooves, and the bearing rings 4 are matched with the rolling wheel outer ring 1.

When the bearing ring forging and reaming die is assembled, the rolling wheel outer ring 1 and the rolling wheel inner ring 2 adopt interference fit and thermal assembly processes, the rolling wheel outer ring 1 is heated to 200-250 ℃, the rolling wheel inner ring 2 is pressed into the rolling wheel outer ring 1, and the key strips 3 are inserted into the key grooves at the joint part of the rolling wheel outer ring 1 and the rolling wheel inner ring 2, so that the rolling wheel outer ring 1 and the rolling wheel inner ring 2 are prevented from rotating mutually; when two or more than two key bars 3 are arranged, the key bars are uniformly distributed along the circumferential direction of the rolling wheel outer ring 1 and the rolling wheel inner ring 2. The outer ring 1 of the rolling wheel is made of H13 die steel, the material has strong wear resistance, the volume is small compared with the whole rolling wheel, the heat treatment hardenability is enhanced, and the hardness of the rolling wheel is ensured; the inner ring 2 of the rolling wheel is made of 45# steel, so that the cost is low. The utility model discloses effectively improve the wearability of rolling wheel, reduced raw and other materials consumption and bearing manufacturing cost, the raceway quality of car machining efficiency and product has obtained the promotion.

The part of the utility model not detailed is prior art.

The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments, which fall within the scope of the concept and the utility model.

Claims

1. The utility model provides a bearing ring forges reaming mould, includes rolling wheel outer loop and rolling wheel inner ring, characterized by: the inner surface of the outer ring of the rolling wheel is provided with a rolling wheel inner ring in interference fit, the outer ring of the rolling wheel is made of H13 die steel, the inner ring of the rolling wheel is made of No. 45 steel, the bonding surface of the outer ring of the rolling wheel and the inner ring of the rolling wheel is provided with at least one key groove, key bars are arranged in the key grooves, the key grooves are all arranged along the outer ring of the rolling wheel and the inner ring of the rolling wheel in the axial direction, the two ends of the first half key groove of the outer ring of the rolling wheel are respectively arranged between the two end surfaces of the inner surface of the outer ring of the rolling wheel, the two ends of the first half key groove of the inner ring of the rolling wheel are respectively arranged between the two end surfaces of the outer ring of the rolling wheel, the.

2. The bearing ring forging reaming die of claim 1, wherein: the half key groove on the outer ring of the rolling wheel is arranged corresponding to the half key groove on the inner ring of the rolling wheel.

3. The bearing ring forging reaming die of claim 1, wherein: bearing rings are arranged in the grooves and matched with the outer ring of the rolling wheel.