CN205323853U - Broken wall of cone sand making machine that constitutes by potassium steel and high -carbon chromium steel - 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 broken wall of cone sand making machine that constitutes by potassium steel and high -carbon chromium steel of the wear -resisting requirement of the system that rolls sand again, and broken wall upper portion is potassium steel, and more than the superficial hardness HRC45 of potassium steel, broken wall lower part just is unsmooth founding cooperation with broken wall lower part in broken wall upper portion for high -carbon chromium steel. The advantage: firstly, fundamentally has solved the broken wall of homogenous 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 potassium steel 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 high -carbon chromium steel broken wall lower part is unanimous relatively.

Description

The circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel

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, the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel of the wear-resisting requirement rolling sand processed can be met again, belong to circular cone sand making machine component assembly and 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, design a kind of circular cone sand making machine and can meet the wear-resisting requirement that rubble is broken in sand process processed, the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel of the wear-resisting requirement rolling sand processed can be met again。

Design: in order to realize above-mentioned purpose of design。This utility model is in structural design: 1, crushing wall top is potassium steel, crushing wall bottom is the design of high-carbon chromium steel, is one of technical characteristic of the present utility model。So the purpose of design is in that: potassium steel 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 potassium steel produces hardening, case hardness is risen to rapidly more than HRC45 by HRC17--21, 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 potassium steel internal layer austenite still keeps good impact flexibility。This utility model utilizes this characteristic of potassium steel just, the top of crushing wall (or middle part and top) is adopted potassium steel, 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 high-carbon chromium steel carbon containing Wc is about 1%, chrome content Wcr is about 1.5%, and the hypereutectoid steel containing a small amount of manganese, element silicon。Chromium can improve heat treatment performance, improve quenching degree, structural homogenity, temper resistance, can improving again rustless property and the grinding performance of steel, its hardness reaches HRC63 ± 3, has the wearability of excellence, meeting the wear-resisting requirement rolling sand processed, its wear extent is significantly less than potassium steel。2, crushing wall top and crushing wall bottom are that concavo-convex clamping engages is the two of technical characteristic of the present utility model。So the purpose of design is in that: be connected in the concaveconvex structure of crushing wall bottom by the convex-concave on crushing wall top, crushing wall bottom synchronous can be driven to rise when crushing wall top is risen under the effect of external force, thus reaching the size of Longkou (rolling chamber) between convenient adjustment crushing wall and crushing wall。

Technical scheme: a kind of circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel, crushing wall top is potassium steel, more than the case hardness HRC45 of potassium steel, and crushing wall bottom is high-carbon chromium steel and crushing wall top is that concavo-convex founding coordinates with crushing wall bottom。

This utility model is compared with background technology, one is fundamentally solve homogenous material crushing wall 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 potassium steel on crushing wall top rolls the wear extent in sand chamber processed in wear extent produced by broken building stones and high-carbon chromium steel 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 manufacturing cost and the use cost of crushing wall, reduce sand cost processed。

Accompanying drawing explanation

Fig. 1 is the structural representation of the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel。

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。1, a kind of circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel, crushing wall top 1 is potassium steel, crushing wall bottom 2 is that concavo-convex founding coordinates 4 for high-carbon chromium steel and crushing wall top 1 with crushing wall bottom 2, namely crushing wall top 1 annular boss is cast in the annular groove of crushing wall bottom 2, or crushing wall top 1 annular groove is cast on the annular boss of crushing wall bottom 2。Potassium steel crushing wall lower surface is that concavo-convex founding coordinates with high-carbon chromium steel crushing wall upper surface。Potassium steel crushing wall height is more than the height of high-carbon chromium steel crushing wall 2。The material of potassium steel crushing wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5。

Its manufacture method one: 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 high-carbon chromium steel is cast to crushing wall bottom and waters mold, obtain crushing wall bottom after cooling molding, then crushing wall bottom is carried out heat treatment；(2) using upper surface, crushing wall bottom as crushing wall top shaping mould bed die, crushing wall bottom is in the state of cooling, then make crushing wall top water mold and be placed on dither platform, what melted potassium steel was cast to crushing wall top under the vibration of dither platform waters in mold, after cooling and demolding, crushing wall top is carried out heat treatment；(3) to namely obtaining the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel after being carried out finishing by the crushing wall of potassium steel and high-carbon chromium steel cast molding。

Its manufacture method two: mold is watered on (1) fabrication techniques crushing wall top 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 mold, obtain crushing wall top after cooling molding, then crushing wall top is carried out heat treatment；(2) it is in the state of cooling using lower surface, crushing wall top as crushing wall bottom shaping mould bed die and crushing wall top, then make crushing wall bottom water mold and be placed on dither platform, what melted high-carbon chromium steel was cast to crushing wall bottom under the vibration of dither platform waters in mold, after cooling and demolding, crushing wall bottom is carried out heat treatment；(3) to namely obtaining the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel after being carried out finishing by the crushing wall of potassium steel and high-carbon chromium steel cast molding。

Embodiment 2: on the basis of embodiment 1, potassium steel crushing wall lower surface is annular boss and annular boss cross section is low wide and up narrow trapezium structure, and high-carbon chromium steel crushing wall upper surface is annular groove and annular groove cross section is low wide and up narrow trapezium structure and the annular boss with potassium steel crushing wall lower surface matches。

Embodiment 3: on the basis of embodiment 1, potassium steel crushing wall lower surface is annular groove and annular recessed cross section is trapezium structure wide at the top and narrow at the bottom, and high-carbon chromium steel crushing wall upper surface is annular boss and annular boss cross section is trapezium structure wide at the top and narrow at the bottom and the annular groove with potassium steel crushing wall lower surface matches。

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 (6)

1. the circular cone sand making machine crushing wall that a kind is made up of potassium steel and high-carbon chromium steel, it is characterized in that: crushing wall top is potassium steel, more than the case hardness HRC45 of potassium steel, crushing wall bottom is high-carbon chromium steel and crushing wall top is that concavo-convex founding coordinates with crushing wall bottom。

2. the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel according to claim 1, is characterized in that: potassium steel crushing wall lower surface is that concavo-convex founding coordinates with high-carbon chromium steel crushing wall upper surface。

3. the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel according to claim 2, it is characterized in that: potassium steel crushing wall lower surface is annular boss and annular boss cross section is low wide and up narrow trapezium structure, high-carbon chromium steel crushing wall upper surface is annular groove and annular groove cross section is low wide and up narrow trapezium structure and the annular boss with potassium steel crushing wall lower surface matches。

4. the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel according to claim 2, it is characterized in that: potassium steel crushing wall lower surface is annular groove and annular recessed cross section is trapezium structure wide at the top and narrow at the bottom, high-carbon chromium steel crushing wall upper surface is annular boss and annular boss cross section is trapezium structure wide at the top and narrow at the bottom and the annular groove with potassium steel crushing wall lower surface matches。

5. the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel according to claim 1, is characterized in that: the material of potassium steel crushing wall is ZGMn13-1 or ZGMn13-2 or ZGMn13-3 or ZGMn13-4 or ZGMn13-5。

6. the circular cone sand making machine crushing wall being made up of potassium steel and high-carbon chromium steel according to claim 1, is characterized in that: potassium steel crushing wall height is more than the height of high-carbon chromium steel crushing wall。