CN202225495U

CN202225495U - Super wear-resistant helical blade

Info

Publication number: CN202225495U
Application number: CN2011202963354U
Authority: CN
Inventors: 肖云捷; 张红英
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-05-23
Anticipated expiration: 2021-08-16

Abstract

A helical blade is always taken as a main accessory in a series of stirring and conveying machines such as a classifier, a feeding machine, a blending machine, a slag extractor, a lifter, a conveyor, an extruder, a stirrer, a spreading machine, a mixing plant and the like, and the helical blade has the technical problem of being poor in wear resistance. The utility model provides a super wear-resistant helical blade which comprises a steel blank body and a wear-resistant part, wherein the wear-resistant part consists of a steel base body (1), a metal alloy transition layer (2) and superhard material particles-metal alloy wear-resistant composite layer (3) which form an integral structure with the steel blank body. The super wear-resistant helical blade has the service life which is more than 20 times as long as that of quenched steel material accessory and castings such as ball-milling cast iron, ball-milling cast steel and the like, and is more than 8 times as long as that of hard alloy material accessory.

Description

A kind of ultra wear-resisting helical blade

Technical field

The utility model relates to paver, mixer, the mixing plant of concrete and bituminous concrete in the engineering machinery; Spiral classifier in the preparation equipment; The extruder of routine for making brick and tile machinery; The a series of equipment of screw(-type) feeder and material machine, conveyer, elevator or the like in metallurgy and the chemical machinery.

Background technology

Present helical blade and stirring vane mainly contain following several kinds: a kind of is steel reach wear-resisting purpose through heat treatment means such as quenchings accessory; A kind of is nodular cast iron, ball milling cast steel or high manganese steel casting, or adds special steel, the particular iron foundry goods of rare earth material, and service life is very short, and as the accessory of carbide alloy use is only arranged just in minimal type equipment.For solving the prior art defective, need design a kind of ultra wear-resisting helical blade, thereby practice thrift huge high-quality steel member, high quality cast iron spare, high-quality steel-casting.

The utility model content

The purpose of the utility model is that a kind of ultra wear-resisting helical blade need be provided.

The utility model technical scheme is achieved in that a kind of ultra wear-resisting helical blade, has layer structure, from the inside to surface by steel matrix, metal alloy transition zone and superhard material particulate---and metal alloy is wear-resistant composite bed to be formed.

Described metal alloy transition zone is single metal or multiple metal alloy.

Metal alloy is wear-resistant composite bed for described superhard material particulate---metal alloy is wear-resistant composite bed can be one or more layers superhard material particulate---.

Described superhard material particulate can be a kind of superhard material particulate or multiple superhard material particulate.

The beneficial effect of the utility model: common helical blade generally or through the heat treatment means reaches the surface abrasion resistance purpose; Or in casting process, in steel melt, fusant, add to increase the metallic elements such as rare earth, manganese, steel of anti-wear performance; It is wear-resisting that the internal structure of change material reaches accessory, perhaps will reach wear-resisting with the method that carbide alloy plates.In fact; The accessory that preceding two kinds of methods are made; No matter how to change; Fundamentally do not change the characteristic of its material, its hardness can't be compared with the hardness of hard grain in a series of objects of earth, silt particle, mudstone, concrete, bituminous concrete, Stabilized Soil, ore in sand form, ore pulp, breeze, coal, coal dust or the like, can not tackle the problem at its root.Though carbide alloy is to a certain degree containing the superhard material carbide,, can only in the equipment of minimal type, use because cost is very expensive.Though the utility model has selected for use very common steel as basic framework on material; But on steel matrix; At first the method through metallurgical chemistry has combined the layer of metal alloy as transition zone, on transition zone, continues to utilize the metallurgical chemistry composite methods to combine that one or more layers superhard material particulate---metal alloy is wear-resistant composite bed then again.Problem is the superhard material particulate---metal alloy wear-resistant composite bed in disperse various composite superhard material hard points; Its hardness is several times as much as cement, fine sand, sandstone, earth, silt particle, ore in sand form; The hardness of a series of materials such as breeze, coal, coal dust, thereby the service life of having improved helical blade greatly.The utility model and common helical blade can be guaranteed to improve service life more than 20 times; Compare with the carbide alloy accessory, can improve 5～8 times.Can practice thrift tens million of tons of high-quality steel, high quality cast iron every year for our country, and its social benefit and economic benefit all are very significant.

Description of drawings

Fig. 1, Fig. 2, Fig. 3 are the structural representations of brickmaking mechanical, system watt mechanical spiral instance

Fig. 4 is a kind of ultra wear-resisting helical blade double surface unit cross-sectional view

Fig. 5 is a kind of ultra wear-resisting helical blade single face unit section structural representation

The specific embodiment:

Is that the whole metallurgical chemistry key that on steel matrix (1) blade unit or spiral cell surface, passes through combines transition zone (2) and superhard material particulate---metal alloy wear-resistant composite bed (3) like Fig. 4, Fig. 5 for the spiral (the for example brickmaking of Fig. 1, Fig. 2, Fig. 3 and system watt mechanical spiral) of small dimension diameter; And generally be to adopt whole resolve in advance one and another blade unit or spiral unit for the bigger spiral classifier of specification, on each unit steel matrix (1) surface, pass through metallurgical chemistry key combination intermediate metal (2) and superhard material particulate---metal alloy wear-resistant composite bed (3) then.The metal alloy transition zone can be a single metal material, also can be simultaneously the alloy that multiple metal forms; The superhard material particulate---metal alloy wear-resistant composite bed in single metal or multi-element metal alloy disperse superhard material particulate (4) and obtaining; Superhard material particulate (4) can be the amalgam of a kind of superhard material particulate or multiple superhard material particulate, and its dynamics can be single a kind of, also can be the combination of multiple granularity simultaneously.

Fig. 4 is that the multidimensional parcel combines cross-section structure, and Fig. 5 is that single face combines cross-section structure.

Claims

1. a ultra wear-resisting helical blade is characterized in that having layer structure, from the inside to surface successively by steel matrix (1), metal alloy transition zone (2) and superhard material particulate---and metal alloy wear-resistant composite bed (3) is formed.

2. according to right 1 described a kind of ultra wear-resisting helical blade, it is characterized in that the superhard material particulate---metal alloy wear-resistant composite bed (3) can be one deck or multi-player super-hard particles of material---metal alloy is wear-resistant composite bed.