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The reclaimer is a continuous and efficient bulk loading and unloading machine. It is widely used in raw materials fields of power plants, ports, steel plants, chemical plants, cement plants and other basic industries. It is suitable for strip or circular storage yards. Piles of bulk raw materials such as coal, iron ore, and limestone […]
The problem of slewing bearing breaking teeth mainly occurs in the internal meshing and hard tooth surface (tooth surface hardness ≥HRC50), such as excavators, rotary drills, crawler cranes, etc. The external meshing and soft tooth surface (tooth surface hardness ≤ HRC30), the phenomenon of broken teeth is rarely seen. According to the research and manufacturing […]
Abstract The paper introduces several key processes of large-scale pivoting support and measures taken for the production with the result that the products can meet the requirements marked in the drawings. Descriptors super huge bearing, processing , quench-hardening, deformation. Large slewing bearing, also known as slewing bearing or extra large bearing, is a large bearing […]
The slewing bearing is also a kind of bearing. The type distribution and structural characteristics of the slewing bearing are also very complicated. There are single row and cross type and roller type slewing bearings. At the same time, to a large extent, The uniform applicability of the slewing ring in various application areas is […]
First, introduction During the loading and unloading operation of the door machine, it is inevitable that accidental centrifugal force and stress concentration will occur during the simultaneous operation of turning and lifting, resulting in damage of the large rotating bearing (the bearing type used in the 40-ton door machine described in this paper is 132.50.1500.03K5). […]
The guarantee of wind power slewing bearing quality is mainly reflected in the design and manufacture. It integrates domestic and foreign enterprises and institutions to design and manufacture wind power slewing bearings. We have made key technologies for the design and manufacture of wind power slewing bearings. Research, a brief introduction, I hope to be […]
First, the status quo of the bearing “running circle” problem The so-called bearing “running circle” is that the outer ring of the bearing and the bearing seat or the inner ring and the shaft have a relative movement. The planetary gear of the gearbox has a running ring that will cause irreparable damage to the […]
Due to incorrect installation of the slewing bearing raceways and rolling elements, overload operation, poor heat treatment, unreliable sealing devices, etc., premature failure of the slewing bearing raceways and rolling elements. The typical damage symptoms are listed below and the main causes of the damage and the effects on the slewing work are described. 1. […]
With the development of offshore oil rigs, there is an increasing demand for large lifting equipment for platform installation and maintenance. 1. The requirements of basic function parameters are continuously improved. The lifting capacity of a single machine is basically above 1000t, the maximum working range can reach nearly 100 meters, and the lifting height […]
As the core component of the machine tool spindle and turntable, the bearing plays a decisive role in the performance of the machine tool. This paper mainly describes the selection of spindle bearings and the selection of rotary table bearings. As a key component of the machine tool, the spindle directly affects the parameters such […]
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