CN203680192U

CN203680192U - Detaching tool for oil film bearing bush

Info

Publication number: CN203680192U
Application number: CN201320881874.3U
Authority: CN
Inventors: 王文宇
Original assignee: Fujian Sangang Minguang Co Ltd; Fujian Sangang Group Co Ltd
Current assignee: Fujian Sangang Minguang Co Ltd; Fujian Sangang Group Co Ltd
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2014-07-02
Anticipated expiration: 2023-12-30

Abstract

A detaching tool for an oil film bearing bush is characterized by consisting of arc-shaped blocks, sleeve pins, cushion blocks and a patting device, wherein each arc-shaped block is in a rectangular shape in the axial direction, the radius of the outer circular arc of each arc-shaped block is equal to that of a semi-bush, the inner concave surface of each arc-shaped block is a splayed surface, the two end parts of each arc-shaped block are tangential sections, the center points of three planes of each splayed surface are provided with radial stepped holes with large outer parts and small inner parts, each sleeve pin is in a bi-directional stepped shaft shape, cylinders in the middles are sleeved in the radial stepped holes of the arc-shaped blocks in a movable fit manner, inner stepped posts of the sleeve pins are locked and positioned by nuts after penetrating through the radial stepped holes of the arc-shaped blocks, the diameter of an outer stepped raised post of each sleeve pin is smaller than the groove width of the semi-bush, the raised height is smaller than the groove depth of the semi-bush, the outer stepped raised posts of the sleeve pins protrude from the excircle surfaces of the arc-shaped blocks, the two cushion blocks are rectangular blocks, the thickness of each cushion block meets the following condition: when the two cushion blocks are clamped between the two arc-shaped blocks to be encircled in the inner circle of the bearing bush, the excircle surfaces of the two arc-shaped blocks are tightly attached to the inner circle of the bearing bush, and the patting device is formed by fixing a cylindrical post on a disc body. The detaching tool can be used for conveniently and quickly detaching bearing bushes.

Description

A kind of extracting tool of oil film bearing shell

Technical field

The utility model relates to dismantling device, particularly a kind of extracting tool of oil film bearing shell.

Background technology

The filmatic bearing (bearing shell) of the finishing mill roller box of iron and steel Gao Xian factory needs periodic replacement, and dismounting difficulty is larger, often causes the damage of eccentric bushing bearing.Eccentric bushing bearing is a cylinder, its central Circular Plate is provided with and has stepped hole, the oil film bearing shell that in lower two stage steps hole, close-fitting trap is made up of two half-watts, and half-watt is provided with circumferential deep-slotted chip breaker for fuel feeding, the Circular Plate of top, half-watt one end post-axis bearing, is difficult to extrapolation.

Summary of the invention

The utility model object is to overcome above-mentioned defect, and a kind of extracting tool of oil film bearing shell is provided.

The utility model scheme is: it is characterized in that: extracting tool is made up of arc piece, hollow pin, cushion block, slappe, it is literal that the axial rectangular shape of arc piece, its outer arc radius equal half-watt radius, its inner concave is " eight ", its both ends are tangential section, and three literal planar central points of " eight " offer respectively the radially stepped hole that outer imperial palace is little; Hollow pin is two-way Step Shaft shape, the moving engage sleeves of its mediate cylindrical is at arc piece radially in stepped hole, in hollow pin, step post is radially located with nut check after stepped hole endoporus through arc piece, and the outer step projection column diameter of hollow pin is less than half-watt groove width, height of projection is less than half-watt groove depth and stretches out arc piece periphery; Two cushion blocks are rectangular block, and pad thickness meets the following conditions: in the time that four tangential sections of two arc pieces surround therebetween in bearing shell inner circle by symmetrical two cushion blocks clamping, the periphery of two arc piece formation can be close in two half-watt inner circles; Slappe is that a disc upper surface is fixed a cylindrical bar, and disc external diameter is less than Pad radius but is greater than two arc pieces, cushion blocks and surrounds the interior empty diameter of formation.

The utility model has the advantage of: can conveniently fast disassembling bearing shell.

accompanying drawing explanation:

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A cutaway view of Fig. 1.

the specific embodiment:

The utility model structure is characterized in that: extracting tool is made up of arc piece 5, hollow pin 4, cushion block 6, slappe 1, it is literal that the axial rectangular shape of arc piece 5, its outer arc radius equal half-watt 3 radiuses, its inner concave is " eight ", its both ends are tangential section, and three literal planar central points of " eight " offer respectively the radially stepped hole that outer imperial palace is little; Hollow pin 4 is two-way Step Shaft shape, the moving engage sleeves of its mediate cylindrical is at arc piece 5 radially in stepped hole, the interior step post of hollow pin 4 is radially located with nut check after stepped hole endoporus through arc piece 5, and the outer step projection column diameter of hollow pin 4 is less than half-watt 3 groove widths, height of projection is less than half-watt 3 groove depths and stretches out arc piece 5 peripheries; Two cushion blocks 6 are rectangular block, and cushion block 6 thickness meet the following conditions: in the time that 5 four tangential sections of two arc pieces surround therebetween in bearing shell inner circle by symmetrical two cushion blocks 6 clamping, the periphery that two arc pieces 5 form can be close in two half-watt 3 inner circles; Slappe 1 is that a disc upper surface is fixed a cylindrical bar, and disc external diameter is less than Pad radius but is greater than two arc pieces 5, cushion block 6 and surrounds the interior empty diameter of formation.

When demolition bearing shell, first slappe 1 cylindrical bar is passed to the central Circular Plate endoporus of eccentric bushing bearing 2, the disc top of slappe 1 is attached to central Circular Plate lower surface, two arc pieces 5 are inserted in respectively to sky in two half-watts makes the protruding column sleeve of three hollow pins 4 of arc piece 5 enter the circumferential deep-slotted chip breaker of half-watt 3, then two cushion blocks 6 are inserted in to interior aerial between two arc piece 5 tangential sections, two arc piece 5 peripheries are close in two half-watt 3 inner circles not can landing, then the cylindrical bar that hits slappe 1 on the lower impulse force by hollow pin 4, under half-watt is shirked for 3 times.

Claims

1. the extracting tool of an oil film bearing shell, it is characterized in that: extracting tool is made up of arc piece (5), hollow pin (4), cushion block (6), slappe (1), it is literal that the axial rectangular shape of arc piece (5), its outer arc radius equal half-watt (3) radius, its inner concave is " eight ", its both ends are tangential section, and three literal planar central points of " eight " offer respectively the radially stepped hole that outer imperial palace is little; Hollow pin (4) is two-way Step Shaft shape, the moving engage sleeves of its mediate cylindrical is at arc piece (5) radially in stepped hole, the interior step post of hollow pin (4) is radially located with nut check after stepped hole endoporus through arc piece (5), and the outer step projection column diameter of hollow pin (4) is less than half-watt (3) groove width, height of projection is less than half-watt (3) groove depth and stretches out arc piece (5) periphery; Two cushion blocks (6) are rectangular block, cushion block (6) thickness meets the following conditions: in the time that (5) four tangential sections of two arc pieces surround therebetween in bearing shell inner circle by symmetrical two cushion blocks (6) clamping, the periphery that two arc pieces (5) form can be close in two half-watts (3) inner circle; Slappe (1) is that a disc upper surface is fixed a cylindrical bar, and disc external diameter is less than Pad radius but is greater than two arc pieces (5), cushion block (6) and surrounds the interior empty diameter of formation.