CN206823913U

CN206823913U - It is a kind of can built-up welding ring hammer of ring-hammer type crusher

Info

Publication number: CN206823913U
Application number: CN201720695553.2U
Authority: CN
Inventors: 李正峰
Original assignee: Wuxi Institute of Commerce
Current assignee: Wuxi Institute of Commerce
Priority date: 2017-06-06
Filing date: 2017-06-06
Publication date: 2018-01-02
Anticipated expiration: 2027-06-06

Abstract

The utility model discloses it is a kind of can built-up welding ring hammer of ring-hammer type crusher, it includes hammer body, and the hammer body is in oval ring-type, and the hammer body cross section is circle, and the symmetrical heap in hammer body long axis direction both ends is welded with wear body, the trapezoidal shape of wear body.Because ring hammer is oval ring-type, arm of force when hitting material is increased, larger hitting power can be formed, strengthens crushing effect；At hammer body long axis direction both ends, symmetrical heap is welded with wear body, can extend the service life of ring hammer.

Description

It is a kind of can built-up welding ring hammer of ring-hammer type crusher

Technical field

The utility model is related to it is a kind of can built-up welding ring hammer of ring-hammer type crusher.

Background technology

Ring hammer crusher be it is a kind of with ring hammer impact rotor formula disintegrating machine, material enter disintegrating machine after, first by Acted on to the ring hammering blow rotated at a high speed with rotor and broken, pulverized material obtains kinetic energy at ring hammer simultaneously, at high speed Ground rushes at crushing shell, is crushed for the second time, then falls on sieve plate, is sheared, extrudes, grinds by ring hammer, and material Mutual collision between material further crushes, and is discharged through sieve aperture.Ring hammer is mostly annular shape, also known as top fuller at present. Its outer ring surface is linear contact lay when it hits material, because contact area is small, crushing effect is bad, and ring hammer holds as the scope of attack It is easy to wear；Top fuller is enclosed on bearing pin, is outwards thrown away under the influence of centrifugal force, and the distance of striking point to bearing pin axis is approximately round Ring radius, this distance are referred to as the strike arm of force, and the arm of force is bigger, and hitting power is bigger, but annular radii is limited by disintegrating machine specification System；Prior art top fuller material typically selects potassium steel, although wearability is preferable, plasticity is poor, is easily broken off.

The content of the invention

The utility model in view of the deficienciess of the prior art, provide it is a kind of can built-up welding ring hammer of ring-hammer type crusher, will Annular shape is changed to oval ring-type, so as to increase arm of force when it hits material.

Technical scheme is used by the utility model solves its technical problem：It is a kind of can built-up welding ring hammer crusher ring Hammer, including hammer body, the hammer body are in oval ring-type, and the hammer body cross section is circle, and the hammer body long axis direction both ends are symmetrical Heap is welded with wear body, the trapezoidal shape of wear body.

Further, the thickness of the wear body is equal with hammer body diameter of section, and the height of the wear body is in 10-15mm Between.

The beneficial effects of the utility model are, because ring hammer is oval ring-type, to increase arm of force when hitting material, can shape Into larger hitting power, strengthen crushing effect；At hammer body long axis direction both ends, symmetrical heap is welded with wear body, can extend the use of ring hammer Life-span.

Brief description of the drawings

Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.

Fig. 1 is the utility model structure diagram.

Fig. 2 is prior art top fuller and material pounding schematic diagram.

Fig. 3 is the utility model and material pounding schematic diagram.

Embodiment

Fig. 1 show it is a kind of can built-up welding ring hammer of ring-hammer type crusher, including hammer body 2, the hammer body 2 are in oval ring-type, The cross section of hammer body 2 is circle, and the symmetrical heap in long axis direction both ends of hammer body 2 is welded with wear body 1, and the wear body 1 is in ladder Shape.The thickness of the wear body 1 is equal with the diameter of section of hammer body 2, and the height of the wear body 1 is between 10-15mm.

Fig. 2 show the situation that prior art top fuller 5 is hit with material 4, and the distance h1 of striking point to the axis of bearing pin 3 is approximate For annular radii；Fig. 3 show the situation that the utility model ring hammer is hit with material 4, distance h of the striking point to the axis of bearing pin 3 It is approximately the major diameter of elliptical ring, is typically referred to as the distance of striking point to bearing pin axis to hit the arm of force, the strike arm of force is bigger, Hitting power is bigger, it is clear that the major diameter of elliptical ring is more than annular radii.

Hammer body material uses intensity and the preferable medium carbon steel of plasticity, in build-up wear-resistant material thereon.Using plasma arc heap Soldering method, using arc-plasma current density it is big the characteristics of, by high hardness particle, equably pricker is set in surfacing layer metal, and hard Matter particle does not produce fusing or seldom produces fusing, forms composite overlaying layer.This composite overlaying layer is grand by two or more There is foreign material of different nature composition, a kind of is to play main wear-resisting carbide hard in overlay cladding in sight Grain, generally cast tungsten carbide, another composition metal of overlay cladding have been the substrate metals of cementation, also referred to as carcass Metal, it is the matrix in overlay cladding, it is considered that, the combination of hard particles and carcass metal is that soldering combines, overlay cladding with Mother metal is combined into metallurgical binding.High-abrasive material overlay cladding wearability is high, under the working condition of serious wear, composite overlaying layer Wear-resisting sex expression it is especially prominent, can improve several times of wear-resisting service life even more than ten times.

Claims

1. it is a kind of can built-up welding ring hammer of ring-hammer type crusher, including hammer body, it is characterised in that：The hammer body is in oval ring-type, institute State hammer body cross section and be welded with wear body, the trapezoidal shape of wear body for circle, the symmetrical heap in hammer body long axis direction both ends.

2. it is according to claim 1 it is a kind of can built-up welding ring hammer of ring-hammer type crusher, it is characterised in that：The wear body Thickness is equal with hammer body diameter of section, and the height of the wear body is between 10-15mm.