CN201359026Y

CN201359026Y - Lock sleeve type bearing

Info

Publication number: CN201359026Y
Application number: CNU2008201820239U
Authority: CN
Inventors: 李宪章
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-12-09
Anticipated expiration: 2018-12-11

Abstract

The utility model relates to a lock sleeve type bearing, being characterized in that: first, the diameter of the inner ferrule of a centripetal rolling bearing is larger than the end face diameter of the hollow shaft of a ball mill, so that the bearing can sheath on the prearranged position on the outer surface of the hollow shaft; second, two groups of locking ferrules are arranged between the inner ferrule of the rolling bearing and the hollow shaft. The two groups of locking ferrules are locked toward the axial direction center by a plurality of bolts distributed uniformly on the circumference, thus achieving the target of fixing the rolling bearing on the hollow shaft of the mill. When the sliding bearings of a ball mill and a tube mill are changed into rolling bearings, the time limit can be shortened, and the expenditure can be reduced, and thereby, not only the mechanical strength of the original equipment is ensured, but also the convenience is provided for the use, dismantling and maintenance in future.

Description

Locking shell type bearing

Technical field:

Described lock sleeve bearing is to be applied on the pebble mill of regrind mill manufacturing mechanism of industries such as China's building materials, metallurgy, electric power.

The state of the art: the main bearing majority that the pebble mill bearing and turning cylindrical shell that is using on the present China market is used all is a babbitt metal bearing formula sliding bearing.The main bearing of existing a part of pebble mill has adopted radial antifriction bearing in the existing technology, mainly is to be applied on the whole table grinder of coming of new.

Technology contents: the quill shaft at ball mill barrel two ends is to do usefulness in order to play axially locating at the diameter of the diameter that the sliding bearing position is installed less than axial two ends.When using radial antifriction bearing instead, quill shaft is incompatible at the internal diameter of the diameter at former installation sliding bearing position and rolling bearing, quill shaft need be pulled down from grinding machine and be carried out machined into.This remodeling method off-time is long, and workload is big, the expense height.Use the present situation of difficulty of radial antifriction bearing instead in order to solve the sliding bearing pebble mill, the utility model technology is to have developed a kind of locking shell type rolling bearing.It is characterized in that: 1, the diameter of the inside race of radial antifriction bearing is greater than the end face diameter of pebble mill quill shaft.Make bearing can be enclosed within the precalculated position of quill shaft concave outer surface.2, the inner surface axial both sides of the inside race of rolling bearing are tapers, and mid diameter is little, and the two ends diameter is big.3, two groups of locking lassos are installed at the taper position of the inner surface axial both sides of the inside race of rolling bearing, the external peripheral surface of locking lasso is that taper is corresponding with the taper of the internal surface of the inside race of rolling bearing, 4, lock axial end uniform a plurality of bolt holes on circumference of lasso.5, every group of locking lasso processing is cut into radially two part-annular parts after qualified.Be convenient to the locking lasso is placed between bearing and the mill trunnion.6, two groups of locking lassos by a plurality of bolts uniform on the circumference to axial centre locking, reach rolling bearing be fixed on purpose on the mill trunnion.Can the reduction of erection time when sliding bearing that makes all multiple enterprises of China have pebble mill, tuber grinder now changes rolling bearing into, minimizing expense expenditure, the mechanical strength that has promptly guaranteed original equipment has made things convenient for use dismounting maintenance from now on again, for the industry energy conservation technical innovation provides simple and direct condition.

Description of drawings

Fig. 1: former mill trunnion and locking shell type rolling bearing assembling schematic representation; 1, former mill trunnion; 2, locking shell type rolling bearing.

Fig. 2: locking shell type rolling bearing.1, lock bolt; 2, locking nut; 3, retainer; 4, rolling element; 5, lock sleeve; 6, bearing inner ring; 7, half-turn outside the rolling bearing bottom.

Claims

A kind of locking shell type rolling bearing is characterized in that: 1, the diameter of the inside race of radial antifriction bearing makes bearing can be enclosed within the precalculated position of quill shaft concave outer surface greater than the end face diameter of pebble mill quill shaft; 2, its axial both sides of the bore area of the inside race of rolling bearing are tapers, and mid diameter is little, and the two ends diameter is big; 3, two groups of locking lassos are installed at the endoporus position of the inside race of rolling bearing, and the external peripheral surface of locking lasso is that taper is corresponding with the bore area of rolling bearing; 4, the internal diameter of locking lasso is to a plurality of axial bolts through holes of the neutral position circumference uniform distribution of external diameter; 5, every group of locking lasso is to be cut into two semi-circumference parts by the ring-like circle processing of integral body after qualified, is convenient to the locking lasso is placed between radial bearing and the mill trunnion; 6, two groups of locking lassos by a plurality of bolts uniform on the circumference to axial centre locking, reach rolling bearing be fixed on purpose on the mill trunnion.