CN213052560U

CN213052560U - Conical bearing ring forging die

Info

Publication number: CN213052560U
Application number: CN202021290674.7U
Authority: CN
Inventors: 段少杰; 孟志强; 曹俊峰; 张哲通
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 conical bearing ring forging die relates to a forging die, and comprises a rolling wheel and a rolling roller, wherein two sunken annular grooves are formed in the outer diameter of the rolling wheel at intervals, the bottom of each annular groove is inclined, the lowest point of the bottom of each annular groove is arranged at the position close to the two end faces of the rolling wheel respectively, the included angle B between the lowest point of the bottom of each annular groove and a horizontal line is 5-9 degrees, an outward-expanding inclined plane is arranged between the lowest point of the bottom of each annular groove and the outer diameter of the rolling wheel, the linear distance between the lowest point of the bottom of each annular groove and the outer diameter of the rolling wheel is a vertical line, the included angle C between each inclined plane and the vertical line is 3-5 degrees, a kidney-; the utility model discloses simple structure, increased the life-span of rolling roller.

Description

Conical bearing ring forging die

Technical Field

The utility model relates to a forge the mould, especially relate to a conical bearing lasso forges mould.

Background

As is known, in the forging process of a conical bearing ring, a rolling wheel and a rolling roller are used, wherein the rolling wheel is a driving wheel and drives a blank to rotate, and the blank rubs against the rolling roller to drive the rolling roller to rotate so as to finish forging; in order to improve the material utilization rate and the production efficiency, the forging process method is changed from the independent processing of the outer ring and the inner ring into the sleeve forging, 1 outer ring and 1 inner ring can be simultaneously processed for 1 material section, but the rolling roller of the reaming die of the process is too thin, low in strength, easy to break and short in service life, the die cost is high and the production efficiency is low due to frequent replacement of the rolling roller, if the diameter of the rolling roller is increased by increasing the diameter of a sleeve-dividing punch, the sleeve-dividing material core is increased, the sleeve-dividing material core cannot be accurately placed in the center of a reverse extrusion female die in the reverse extrusion process, the reverse extrusion blank is eccentric, and a forged piece has poor wall thickness after reaming, so that the quality hidden trouble is brought to a product. Therefore, the conical bearing ring forging die which does not affect the quality of the inner ring product and can prolong the service life of the outer ring rolling roller is provided, and becomes a basic demand of technical personnel in the field.

Disclosure of Invention

In order to overcome the deficiency in the background art, the utility model discloses a conical bearing ring forges mould.

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

the utility model provides a circular cone bearing ring forges mould, including rolling wheel and rolling roller, the interval is equipped with two sunken annulars on the external diameter of rolling wheel, the tank bottom of annular is the slope form, the minimum of tank bottom sets up respectively in the face department of being close to rolling wheel both ends, and the contained angle B between tank bottom minimum and the horizontal line is 5 ~ 9, be equipped with the inclined plane that expands outward between tank bottom minimum and the external diameter of rolling wheel, the straight-line distance between tank bottom minimum and the rolling wheel external diameter is the perpendicular line, contained angle C between inclined plane and the perpendicular line is 3 ~ 5, the lower part of rolling wheel is equipped with the rolling roller of waist shape, the cover is equipped with the forging stock on the rolling roller.

The sum of the included angle B and the inclination angle A of the rolling roller outer cone of the conical bearing ring forging die is equal to the inclination angle alpha of the finished product forging material inner hole.

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

the utility model discloses a conical bearing ring forges mould, according to the intensity of rolling roller diameter D, rolling roller angle B designs 5 ~ 9, designs rolling roller angle C3 ~ 5, can eliminate forging terminal surface concave center, designs rolling roller angle B and has reduced rolling roller angle A simultaneously for rolling roller diameter D has obtained the increase, has improved rolling roller intensity, and rolling roller life-span has been improved to about 1200 by about 500, has reduced the expense of rolling roller, has improved production efficiency, has reduced the manufacturing cost of bearing ring; the utility model discloses simple structure, increased the life-span of rolling roller.

Drawings

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

FIG. 2 is a schematic structural view of the finished forging of the present invention;

in the figure: 1. a rolling wheel; 2. rolling a roller; 3. forging stock blanks; 4. a ring groove; 5. an inclined surface; 6. and (5) finishing the forging.

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.

Combine attached figure 1-2 conical bearing lasso forge mould, including rolling wheel 1 and rolling wheel 2, the interval is equipped with two sunken annular 4 on the external diameter of rolling wheel 1, the tank bottom of annular 4 is the slope form, the minimum of tank bottom sets up respectively and is being close to rolling wheel 1 both ends face department, and the tank bottom minimum and the contained angle B between the horizontal line be 5 ~ 9, be equipped with inclined plane 5 that expands outward between the tank bottom minimum and the external diameter of rolling wheel 1, the linear distance between tank bottom minimum and the rolling wheel 1 external diameter is the vertical line, contained angle C between inclined plane 5 and the vertical line is 3 ~ 5, the lower part of rolling wheel 1 is equipped with kidney-shaped rolling wheel 2, the cover is equipped with forging stock blank 3 on rolling wheel 2.

The sum of the included angle B and the inclination angle A of the rolling roller outer cone of the conical bearing ring forging die is equal to the inclination angle alpha of the inner hole of the finished product forging material 6.

Implement conical bearing ring forges mould, figure 1 has designed rolling wheel angle B, reduce rolling wheel angle A simultaneously, make rolling wheel diameter D obtain the increase, design rolling wheel angle B5 ~ 9, this method reaming back forging integer is big partially, can cause the slight concave center of forging terminal surface, design rolling wheel angle C3 ~ 5, can eliminate forging terminal surface concave center, make finished product forging angle alpha become rolling wheel angle A + rolling wheel angle B, the intensity of rolling roller 2 has been improved, rolling roller 2 life-span has been improved about 1200 by about 500, the expense of rolling roller 2 has been reduced, the production efficiency is improved, the manufacturing cost of bearing ring has been reduced.

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 circular cone bearing ring forges mould, includes rolling wheel and rolling roller, characterized by: the outer diameter of the rolling wheel is provided with two sunken ring grooves at intervals, the groove bottoms of the ring grooves are inclined, the lowest points of the groove bottoms are respectively arranged at positions close to two end faces of the rolling wheel, an included angle B between the lowest point of the groove bottoms and a horizontal line is 5-9 degrees, an inclined plane which expands outwards is arranged between the lowest point of the groove bottoms and the outer diameter of the rolling wheel, the straight line distance between the lowest point of the groove bottoms and the outer diameter of the rolling wheel is a vertical line, an included angle C between the inclined plane and the vertical line is 3-5 degrees, the lower portion of the rolling wheel is provided with a kidney-shaped rolling roller.

2. The conical bearing ring forging die set forth in claim 1, wherein: the sum of the included angle B and the inclination angle A of the external cone of the rolling roller is equal to the inclination angle alpha of the inner hole of the finished forging material.