CN-121977016-A - Rod end joint bearing and machining method of rod end joint bearing

CN121977016ACN 121977016 ACN121977016 ACN 121977016ACN-121977016-A

Abstract

The invention discloses a rod end joint bearing and a processing method of the rod end joint bearing, comprising a rod end body and a bearing body formed by mutually assembling an inner ring and an outer ring, wherein a rod end eyelet is arranged on the rod end body, the bearing body is embedded and installed in the rod end eyelet, a first limit concave part and a second limit concave part are respectively arranged at a first end of the eyelet and a second end of the eyelet, a radial flange extending towards the circumferential direction of the outer ring is arranged at the first end of the outer ring, an axial flange extending towards the axial direction of the outer ring is formed at the edge of the second end of the outer ring, when the bearing body is installed in place in the rod end eyelet, the radial flange of the outer ring can be in limit fit with the first limit concave part, and the axial flange of the outer ring protrudes out of the second end of the eyelet of the rod end body and is in limit fit with the corresponding second limit concave part in the radial direction under the riveting action of a riveting device, so that the axial bearing capacity and the pressure release capacity of the rod end joint bearing are improved.

Inventors

LIAO HAIYAN
WANG QIRUI
XU CAIFENG
SHI ZHENGZHONG
JIANG GUICHENG

Assignees

福建龙溪轴承(集团)股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260213

Claims (9)

1. The rod end joint bearing is characterized by comprising a rod end body and a bearing body formed by mutually assembling an inner ring and an outer ring, wherein a rod end eyelet is formed in the rod end body, the bearing body is embedded and installed in the rod end eyelet, two ends of the rod end eyelet are respectively provided with a first eyelet end and a second eyelet end, the first eyelet end and the second eyelet end are respectively provided with a first limit concave part and a second limit concave part, two ends of the outer ring are respectively provided with a first outer ring end and a second outer ring end, a radial flange extending towards the circumferential direction of the outer ring is arranged at the first end of the outer ring, an axial flange extending towards the axial direction of the outer ring is formed at the edge of the second outer ring end of the outer ring, when the bearing body is installed in place in the rod end eyelet, the radial flange of the outer ring is configured to be in limit fit with the first limit concave part, and the axial flange of the outer ring protrudes out of the second eyelet end of the rod end body and is in limit fit with the corresponding second limit concave part in a limit mode by rolling deformation along the radial direction under the effect of a riveting device.
2. The rod end joint bearing according to claim 1, wherein the first limit recess is a stepped recess configuration.
3. The rod end joint bearing according to claim 1, wherein the second limit recess is a chamfer.
4. A rod end joint bearing according to claim 3, wherein the second limit recess is a 45 degree chamfer.
5. The rod end joint bearing according to claim 1, wherein the outer race first end and the outer race second end are configured to be disposed flush with respective ends of the rod end body.
6. The rod end joint bearing according to claim 1, wherein an annular groove is formed in an end surface of the second end of the outer race between the second limit recess and the axial flange.
7. The rod end joint bearing according to claim 6, wherein the annular groove has a V-shaped cross-section.
8. The rod end joint bearing according to claim 6, wherein a self-lubricating pad is provided between an outer spherical surface of the inner race and an inner spherical surface of the outer race.
9. A method of manufacturing a rod end joint bearing according to claim 8, comprising the steps of: S1, processing an inner ring and an outer ring which are mutually matched, and simultaneously processing and forming a radial flange, an axial flange and an annular groove on the outer ring; s2, installing a self-lubricating gasket on the inner spherical surface of the outer ring, then installing the inner ring into the outer ring, and performing extrusion, flash grinding and play treatment to obtain a bearing body; s3, machining a rod end body, and machining and forming a rod end eyelet, a first limit concave part and a second limit concave part on the rod end body; And S4, press-fitting the bearing body into the rod end eyelet, and when the radial flange is clamped into the first limit concave part to form limit fit, utilizing the riveting device to press-bend the axial flange on the outer ring to enable the axial flange to radially outwards roll and deform so as to be in limit fit with the corresponding second limit concave part, thereby obtaining the rod end joint bearing.

Description

Rod end joint bearing and machining method of rod end joint bearing Technical Field The invention relates to the technical field of rod end joint bearings, in particular to a rod end joint bearing and a machining method of the rod end joint bearing. Background An existing rod end joint bearing as shown in fig. 7 comprises a rod end body 1', an outer ring 2' and an inner ring 3', wherein during assembly, after the outer ring 2' and the inner ring 3 'are assembled in place by extrusion, one-time play treatment is needed, so that an assembled bearing body is obtained, then, the bearing body is pressed into a rod end eyelet of the rod end body 1', the end face of the rod end eyelet of the rod end body is riveted by a riveting device, a circle of annular groove 11 '(riveting part) is formed on the end face of the rod end eyelet under the riveting action of the riveting device, and then, the part, close to the outer ring 2', of the rod end body 1 'generates material deformation and extrudes the peripheral wall of the outer ring 2', so that the bearing body is fixed in the rod end eyelet of the rod end body, and the assembly of the rod end joint bearing is completed. However, in the riveting process of the bearing body and the rod end body 1', the part of the rod end body 1' close to the outer ring 2 'generates material deformation and presses the peripheral wall of the outer ring 2', so that the rod end joint bearing after riveting assembly needs secondary play treatment, and the rod end joint bearing is better suitable for application occasions with high precision requirements and no axial load. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a rod end joint bearing, which mainly solves the technical problems that the prior rod end joint bearing needs secondary play treatment after riveting and assembling and cannot bear large axial force. In order to achieve the above purpose, the invention is realized by the following technical scheme: The rod end joint bearing comprises a rod end body and a bearing body formed by mutually assembling an inner ring and an outer ring, wherein a rod end eyelet is formed in the rod end body, the bearing body is embedded and installed in the rod end eyelet, two ends of the rod end eyelet are respectively provided with a first eyelet end and a second eyelet end, a first limiting concave part and a second limiting concave part are respectively arranged at the first eyelet end and the second eyelet end, two ends of the outer ring are respectively provided with a first outer ring end and a second outer ring end, a radial flange extending towards the circumferential direction of the outer ring is arranged at the first outer ring end, an axial flange extending towards the axial direction of the outer ring is formed at the edge of the second outer ring end, when the bearing body is installed in place in the rod end eyelet, the radial flange of the outer ring is configured to be in limit fit with the first limiting concave part, and the axial flange of the outer ring protrudes out of the second eyelet end of the rod end body and is bent in the radial direction under the riveting effect of a riveting device so as to be in limit fit with the corresponding second limiting concave part. Further, the first limit concave part is of a step groove structure. Further, the second limit concave part is of a chamfer structure. Further, the second limit concave part is of a 45-degree chamfer structure. Further, the outer race first end and the outer race second end are configured to be flush with both ends of the rod end body, respectively. Further, an annular groove positioned between the second limit concave part and the axial flange is formed in the end face of the second end of the outer ring. Further, the cross section of the annular groove is of a V-shaped structure. Further, a self-lubricating gasket is provided between the outer spherical surface of the inner ring and the inner spherical surface of the outer ring. Based on the same inventive concept, the invention also provides a processing method of the rod end joint bearing, which comprises the following steps: S1, processing an inner ring and an outer ring which are mutually matched, and simultaneously processing and forming a radial flange, an axial flange and an annular groove on the outer ring; s2, installing a self-lubricating gasket on the inner spherical surface of the outer ring, then installing the inner ring into the outer ring, and performing extrusion, flash grinding and play treatment to obtain a bearing body; s3, machining a rod end body, and machining and forming a rod end eyelet, a first limit concave part and a second limit concave part on the rod end body; And S4, press-fitting the bearing body into the rod end eyelet, and when the radial flange is clamped into the first limit concave part to form limit fit, utilizing the riveting device to press-bend the axial flange on the outer ring