Turntable bearing in chassis articulated system of articulated vehicle

Abstract

The invention relates to a turntable bearing in a chassis articulated system of an articulated vehicle. The articulated system comprises a front frame, a rear frame and the turntable bearing, wherein the turntable bearing comprises an outer ring and an inner ring; the rear frame is fixedly connected with the inner ring; a steel ball rolling way is formed between the outer ring and the inner ring in the circumferential direction; the outer ring consists of a first outer ring and a second outer ring; a concave step part is formed at the lower end of the second outer ring in the circumferential direction; the first outer ring is arranged on the step part of the second outer ring; and the second outer ring is connected with the front frame into a whole. The turntable bearing has a skilful design, a simple and compact structure, high reliability, light weight and long service life and is easy to process.

Description

technical field [0001] The invention relates to the technical field of vehicle chassis articulation, in particular to a turntable bearing in the articulation system of an articulated car chassis. Background technique [0002] With the rapid development of my country's automobile manufacturing industry, various vehicle manufacturing industries are also advancing by leaps and bounds. Articulated buses are gradually popularized in large and medium-sized cities in China due to their large passenger capacity and high utilization coefficient. An articulated bus generally consists of front and rear compartments and a chassis hinge system connecting the front and rear compartments. The chassis hinge system includes a turntable bearing, a front frame, a rear frame, and a damping system. The turntable bearing includes an outer ring and an inner ring, as disclosed in Chinese patent CN201086609 A large-scale articulated bus chassis hinge system, the front frame is fixedly connected to t...

AI Technical Summary

Problems solved by technology

An articulated bus generally consists of front and rear compartments and a chassis hinge system connecting the front and rear compartments. The chassis hinge system includes a turntable bearing, a front frame, a rear frame, and a damping system. The turntable bearing includes an outer ring and an inner ring, as disclosed in Chinese patent CN201086609 A large-scale articulated bus chassis hinge system, the front frame is fixedly connected to the outer ring of the turntable bearing through the beam, and the rear frame is fixedly connected to the inner ring of the turntable bearing. Due to structural limitations, the screws are only arranged in a local area, the setting is not uniform enough, the torsion resistance is poor, and the reliability is not high

[0003] For this reason, the applicant has developed a hinge system in which the outer ring of the slewing bearing and the front frame are integrally formed. For example, the applicant recently submitted a patent application with the application number "201020198624.6" and the title "Chassis Hinge System for Articulated Vehicles". The outer ring and the front frame are integrated, but due to rigidity requirements, the overall bearing steel plate is used for cutting and forming, and then the raceway is treated with hardness. The overall weight of this structure is relatively large

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