CN103148096A

CN103148096A - Rotary table bearing used for blast furnace

Info

Publication number: CN103148096A
Application number: CN2011103997761A
Authority: CN
Inventors: 韩长涛; 王衍涛; 王立平
Original assignee: DALIAN GRANDWAY BEARING Co Ltd
Current assignee: DALIAN GRANDWAY BEARING Co Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2013-06-12

Abstract

The invention discloses a rotary table bearing used for a blast furnace. The rotary table bearing comprises a first inner ring, a second inner ring, an outer ring, and a plurality of rollers, wherein two axial roller paths and one radial roller path are respectively formed between the first inner ring and the outer ring as well as between the second inner ring and the outer ring; a plurality of main thrust rollers are arranged in the first axial roller path; a plurality of auxiliary thrust rollers are arranged in the second axial roller path; radial rollers are arranged in the radial roller path; the first inner ring and the second inner ring are fixedly connected by multiple groups of symmetrically-distributed locating pins; a baffle is arranged between the first inner ring and the second inner ring and is welded by a plurality of evenly-distributed spot welding; the ports of an oil circuit X, an oil circuit Y and an oil circuit Z are arranged on the upper end surface of the first inner ring; the oil circuit X is led to the second axial roller path; the oil circuit Y is led to the radial roller path; and the oil circuit Z is led to the first axial roller path. The rotary table bearing provided by the invention has the characteristics of wear resistance, high temperature resistance, high speed, and high load capacity, has a service life of more than 12 years, and is suitable for the latest type of blast furnace burden distribution mechanism and is the core component of the mechanism.

Description

A kind of blast furnace turntable bearing

Technical field

The present invention relates to a kind of bearing, particularly a kind of blast furnace turntable bearing.

Background technique

Bearing is comprised of inner ring, outer ring, a plurality of roller and retainer usually, and a plurality of rollers are installed in respectively in the pocket hole that keeps corresponding on stand and are placed in the raceway that is made of inner ring and outer ring, and the retainer lid is fixed on the upper-end surface that keeps stand.Turntable bearing is a kind ofly can bear combined load, the special large-scale and extra large size bearing of structure, the characteristics such as require to have compact structure, revolution is flexible, convenient for installation and maintenance.Compare with plain bearing, turntable bearing has following notable feature: 1) boundary dimension is large; 2) bearing capacity is high, generally can bear simultaneously thrust load, radial load and tilting moment load; 3) rotating speed is low, and working speed is lower than 10r/min, and does not in most cases do continuous rotary, only rotates in several angle, does oscillating motion.4) with bearing mounting hole, available screw is fastened on it on upper and lower bearing.

Summary of the invention

The purpose of this invention is to provide a kind of wear-resistant, resistant to elevated temperatures blast furnace turntable bearing, be mainly used in up-to-the-minute blast furnace material distribution mechanism, is the core component of this mechanism.

The technological scheme that adopts is:

A kind of blast furnace turntable bearing comprises the first inner ring, the second inner ring, outer ring, a plurality of main thrust roller, a plurality of secondary thrust roller and a plurality of radial roller, it is characterized in that:

Form radially raceway of two axial raceways and between the first inner ring, the second inner ring and outer ring, a plurality of main thrust rollers are installed in the first axial raceway, a plurality of secondary thrust rollers are installed in the second axial raceway, a plurality of radial rollers are installed in radially in raceway, a plurality of main thrust rollers and a plurality of secondary thrust roller are two row's axial carrying thrust cone rollers, and a plurality of radial rollers are that a row is radially carried centripetal cylindrical roller; The first inner ring and the second inner ring are located by the symmetrical locating stud of many groups, then the first inner ring are fixedly connected with the second inner ring with corresponding packing ring by a plurality of bolts; Baffle plate is arranged between the first inner ring and outer ring, and by equally distributed a plurality of spot-welded on;

The port of oil circuit X, oil circuit Y and oil circuit Z is arranged on the upper-end surface of the first inner ring, and oil circuit X leads to the second axial raceway, and oil circuit Y leads to radially raceway, oil circuit Z leads to the first axial raceway, due to when work inner ring fix, so lubricant oil can enter hydraulic fluid port smoothly, and raceway is lubricated.

The invention has the advantages that:

1, the present invention is wear-resistant, and is high temperature resistant, and rotating speed is high, and bearing capacity is high, and can reach more than 12 years working life, is applicable to up-to-the-minute blast furnace material distribution mechanism, is the core component of this mechanism;

2, carry the fine finishing gear on bearing outside diameter, can increase substantially transmission accuracy;

3, bearing inner race and outer ring are processed with bolt connecting hole simultaneously, can effectively simplify structure and dimensional space with its connected element;

4, the lasso material adopts the 5CrMnMo hot-working die steel, has higher wear resistance and heat resistance;

5, be processed with some lubricating oil paties at bearing face and inside, to form lubricating every row raceway;

6, the soft band of raceway face quenching adopts Laser hardening, makes whole circle raceway all obtain hardened layer.

Description of drawings

Fig. 1 is longitudinal section of the present invention schematic diagram.

Fig. 2 is oil circuit X structural representation of the present invention.

Fig. 3 is oil circuit Y structural representation of the present invention.

Fig. 4 is oil circuit Z structural representation of the present invention.

Fig. 5 is mounting hole distribution map schematic diagram of the present invention.

Fig. 6 is the structural representation of locating stud part in the present invention.

Embodiment

A kind of blast furnace turntable bearing comprises the first inner ring 2, the second inner ring 3, outer ring 1, a plurality of main thrust roller 4, a plurality of secondary thrust roller 5 and a plurality of radial roller 6, it is characterized in that:

Form radially raceway of two axial raceways and between the first inner ring 2, the second inner ring 3 and outer ring 1, a plurality of main thrust rollers 4 are installed in the first axial raceway, a plurality of secondary thrust rollers 5 are installed in the second axial raceway, a plurality of radial rollers 6 are installed in radially in raceway, a plurality of main thrust rollers 4 and a plurality of secondary thrust roller 5 are two row's axial carrying thrust cone rollers, and a plurality of radial rollers 6 are that a row is radially carried centripetal cylindrical roller; The first inner ring 2 and the second inner ring 3 are located by the symmetrical locating stud 7 of many groups, then the first inner ring 2 are fixedly connected with the second inner ring 3 with corresponding packing ring 11 by a plurality of bolts 10; Baffle plate 8 is arranged between the first inner ring 2 and outer ring 1, and by equally distributed 30 spot welding, 9 welding;

The port of oil circuit X, oil circuit Y and oil circuit Z is arranged on the upper-end surface of the first inner ring, and oil circuit X leads to the second axial raceway, and oil circuit Y leads to radially raceway, and oil circuit Z leads to the first axial raceway.

Claims

1. a blast furnace turntable bearing, comprise the first inner ring (2), the second inner ring (3), outer ring (1), a plurality of main thrust roller (4), a plurality of secondary thrust roller (5) and a plurality of radial roller (6), it is characterized in that:

Form radially raceway of two axial raceways and between the first inner ring (2), the second inner ring (3) and outer ring (1), a plurality of main thrust rollers (4) are installed in the first axial raceway, a plurality of secondary thrust rollers (5) are installed in the second axial raceway, a plurality of radial rollers (6) are installed in radially in raceway, a plurality of main thrust rollers (4) and a plurality of secondary thrust roller (5) are two row's axial carrying thrust cone rollers, and a plurality of radial rollers (6) are that a row is radially carried centripetal cylindrical roller; The first inner ring (2) and the second inner ring (3) are located by the symmetrical locating stud (7) of many groups, then by a plurality of bolts (10), the first inner ring (2) are fixedly connected with the second inner ring (3); Baffle plate (8) is arranged between the first inner ring (2) and outer ring (1), and welds by equally distributed a plurality of spot welding (9);