CN205323852U - Diameter is less than 2000mm's broken wall of cone sand making machine - Google Patents

Abstract

The utility model relates to a cone sand making machine can satisfy the broken wear -resisting requirement of rubble at system sand in -process, can satisfy the diameter is less than 2000mm's broken wall of cone sand making machine of the wear -resisting requirement of the system that rolls sand again, and broken wall upper portion is mn13, broken wall lower part is the rich chromium cast iron. The advantage: firstly, fundamentally has solved the broken wall of single (no matter be manganese steel, or rich chromium cast iron) material at system sand in -process, because the building stones of different specifications are different to the wearing and tearing volume of broken wall, the broken wall upper portion wearing and tearing that cause are little, the lower part wearing and tearing are big and the system that rolls sand chamber shape that lead to forms the critical defect of recess and unable system sand, secondly, the mn13 on the broken wall upper portion wearing and tearing volume that rolls system sand chamber in produced wearing and tearing volume of broken building stones and rich chromium cast iron broken wall lower part is unanimous relatively, therefore system sand chamber is rolled grinding system sand in -process, because the wearing and tearing volume is greater than the situation of the broken wall upper portion wearing and tearing recess that the volume causes in the broken wall lower part that fundamentally had solved the homogenous material.

Description

The diameter circular cone sand making machine crushing wall less than 2000mm

Technical field

This utility model relates to a kind of circular cone sand making machine can meet the wear-resisting requirement that rubble is broken in sand process processed, can meet again the diameter of the wear-resisting requirement the rolling sand processed circular cone sand making machine crushing wall less than 2000mm, belong to circular cone sand making machine component assembly manufacture field。

Background technology

CN102294280A, title " cone sand making machine Special high-chromium crushing wall and assembly ", it includes crushing wall assembly, and described crushing wall material is high chromium white antifriction cast iron, and its chromium content is more than or equal to 9%, equal to or less than 32%。Advantage: one is that crushing wall anti-wear performance is greatly improved, and its wearability is about 5 times of current potassium steel crushing wall, is not only greatly prolonged service life, and the use cost of user is greatly reduced；Two be the impact resistance achieving and improve high chromium white antifriction cast iron crushing wall by the structure of physics, effectively slow release impulsive force suffered by high chromium white antifriction cast iron crushing wall, solves high chromium white antifriction cast iron crushing wall and is hit the defect of cracky。But, owing to circular cone sand making machine is crushed to, from building stones, the duty that sand system processed is two kinds different in the process of sand processed, its crushing wall top is used for crushing building stones, what crushing wall top was formed by building stones is impact load and contact extruding, and the impact extruded rubble that what building stones were formed with crushing wall is is uncertain, be not all of contact coordinates, thus the state of wear on crushing wall top is relatively small；And crushing wall bottom is for rolling sand portion processed, the rolling fully in contact with, plyability that broken little building stones and crushing wall are formed, under its little brute force at crushing wall and crushing wall of broken gravelstone between crushing wall and rolled mortar wall rolls, sandstone is extremely serious to the abrasion of crushing wall (also including rolling mortar to ward off)。If adopting homogenous material to make crushing wall, no matter it is manganese steel, or rich chromium cast iron, owing to the building stones of different size are different to the wear extent of crushing wall, result causes that crushing wall Upper wear is little, middle part abrasion opposite upper parts is little and bottom abrasion forms the situation of groove, cause crushing wall to wear and tear, blanking velocity is slow, machine electric current increases, and crushing wall is changed in instruction, and crushing wall life cycle is short。

Utility model content

Purpose of design: avoid the weak point in background technology, designs a kind of circular cone sand making machine and can meet the wear-resisting requirement that rubble is broken in sand process processed, can meet again the diameter of the wear-resisting requirement the rolling sand processed circular cone sand making machine crushing wall less than 2000mm。

Design: in order to realize above-mentioned purpose of design。This utility model is in structural design: 1, crushing wall top is Mn13, crushing wall bottom is the design of rich chromium cast iron, is one of technical characteristic of the present utility model。So the purpose of design is in that: Mn13 is resistant to thump, one of optimum selection in the high-abrasive materials such as big pressure material abrasion, it not only has the Work Hardening Characteristic that other high-abrasive material is incomparable, and under the effect of greater impact load or relatively large contacting stress, the top layer of its manganese steel steel plate Mn13 produces hardening, case hardness is risen to rapidly more than HB500 by HB200, and along with gradually wearing out of cementation zone, new work hardening layer can successively be formed, thus producing endlessly while high abrasion surface layer, and Mn13 internal layer austenite still keeps good impact flexibility。This utility model utilizes this characteristic of Mn13 just, the top of crushing wall (or middle part and top) is adopted Mn13, owing to crushing wall top is for crushing building stones, building stones are precisely impact load to what crushing wall top was formed, it is thus able to make crushing wall case-hardening, hardness promotes rapidly, meets crushing wall top to the hardness requirement of rubble and wear-resisting requirement；And rich chromium cast iron is to be obtained the matrix of martensite or austenite or the two mixed type and the alloy carbide of chromium by high-alloying and heat treatment, this alloy carbide is the Me in hexaplanar, C, its hardness is up to HVl200-1600, it has much higher wearability than potassium steel, its wearability is the several times of Mn13, it also has good high temperature resistance and corrosion resistance concurrently simultaneously, this utility model utilizes the above-mentioned characteristic of rich chromium cast iron to adopt it as the bottom moulding material of crushing wall just, it not only solves the crushing wall bottom of background technology existence and rolls portion in grinding sand process processed, its rate of wear forms the situation of groove more than the crushing wall bottom abrasion that crushing wall top is brought, the wear extent making crushing wall bottom defines optimum coupling with the wear extent on crushing wall top, avoid crushing wall Upper wear amount little, the generation of the worn-out damage situation in bottom, not only greatly extend the service life of crushing wall, and while greatly reducing the use cost of crushing wall, reduce sand cost processed。2, the upper surface of the lower surface on crushing wall top and crushing wall bottom is the design of inclined-plane snap-fit engagement, is the two of technical characteristic of the present utility model。So the purpose of design is in that: owing to the lower surface on crushing wall top is the outer inclined-plane of annular, and the upper surface of crushing wall bottom is that in annular, the tapering on inclined-plane and both inclined-planes is identical, therefore when the upper surface on crushing wall top is contacted by mantle grafting with the lower surface of crushing wall bottom, it is equivalent to crushing wall top and inserts the bottom of crushing wall, not only matching is good, and stable, firm。

Technical scheme: a kind of diameter circular cone sand making machine crushing wall less than 2000mm, crushing wall top is Mn13, crushing wall bottom is rich chromium cast iron。

This utility model is compared with background technology, one is no matter fundamentally solve single (is manganese steel, or rich chromium cast iron) material fragmentation wall is in sand process processed, owing to the building stones of different size are different to the wear extent of crushing wall, the crushing wall Upper wear caused is little, bottom abrasion is big and cause roll sand chamber processed shape formation groove and cannot the critical defect of sand processed；Two to be that the Mn13 on crushing wall top rolls the wear extent in sand chamber processed in wear extent produced by broken building stones and rich chromium cast iron crushing wall bottom relatively uniform, thus sand chamber processed is rolled in grinding sand process processed in the crushing wall bottom fundamentally solving homogenous material, owing to wear extent is more than the situation of crushing wall the caused groove of Upper wear amount, not only greatly extend the service life of crushing wall, and while greatly reducing the use cost of crushing wall, reduce sand cost processed。

Accompanying drawing explanation

Fig. 1 is the structural representation of the diameter circular cone sand making machine crushing wall less than 2000mm。

Fig. 2 is the structural representation mated by crushing wall and crushing wall。

Fig. 3 is the structural representation of homogenous material crushing wall。

Detailed description of the invention

Embodiment 1: with reference to accompanying drawing 1-2。A kind of diameter circular cone sand making machine crushing wall less than 2000mm, crushing wall top 1 is Mn13, crushing wall bottom 2 is rich chromium cast iron。Lower surface, crushing wall top 1 is the outer inclined-plane of annular, and upper surface, crushing wall bottom 2 is the interior inclined-plane of annular and coincide 3 with upper surface, crushing wall top 1。Mn13 crushing wall 1 height is more than the height of rich chromium cast iron crushing wall 2。The material of Mn13 crushing wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5。Rich chromium cast iron crushing wall material is Cr15 or Cr26。Its manufacture method: mold is watered in (1) fabrication techniques crushing wall bottom routinely, mold is watered in the crushing wall bottom made and is placed on dither platform, under the vibration of dither platform, melted rich chromium cast iron is cast to crushing wall bottom and waters in mold, crushing wall bottom is obtained, then to crushing wall bottom heat treatment, polish after cooling and demolding；(2) fabrication techniques crushing wall upper pouring mould routinely, mold is watered on the crushing wall top made and is placed on dither platform, under the vibration of dither platform, melted potassium steel is cast to crushing wall top and waters in mold, crushing wall top is obtained, then to crushing wall top heat treatment, polish after cooling and demolding；(3) inclined-plane outside lower end, crushing wall top after polish is connected in upper end, crushing wall bottom on inclined-plane。Mn13 crushing wall height is more than the height of rich chromium cast iron crushing wall 2。The material of Mn13 crushing wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5。Rich chromium cast iron crushing wall material is Cr15 or Cr26。

It is to be understood that: although the word that mentality of designing of the present utility model is contrasted detailed by above-described embodiment describes; but these words describe; simply the simple text of this utility model mentality of designing is described; rather than the restriction to this utility model mentality of designing; any without departing from the combination of this utility model mentality of designing, increase or amendment, each fall within protection domain of the present utility model。

Claims (5)

1. a diameter circular cone sand making machine crushing wall less than 2000mm, is characterized in that: the top layer that crushing wall top is Mn13, Mn13 produces hardening for HB500, and crushing wall bottom is rich chromium cast iron。

2. the diameter according to claim 1 circular cone sand making machine crushing wall less than 2000mm, is characterized in that: lower surface, crushing wall top is the outer inclined-plane of annular, and upper surface, crushing wall bottom is the interior inclined-plane of annular and coincide with lower surface, crushing wall top。

3. the diameter according to claim 1 circular cone sand making machine crushing wall less than 2000mm, is characterized in that: Mn13 crushing wall height is more than the height of rich chromium cast iron crushing wall。

4. the diameter according to claim 1 circular cone sand making machine crushing wall less than 2000mm, is characterized in that: the material of Mn13 crushing wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5。

5. the diameter according to claim 1 circular cone sand making machine crushing wall less than 2000mm, is characterized in that: rich chromium cast iron crushing wall material is Cr15 or Cr26。