CN205182817U - Broken wall of cone sand making machine that constitutes by mn13 and rich chromium cast iron - 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 mn13 and rich chromium cast iron of the wear -resisting requirement of the system that rolls sand again, and broken wall upper portion is unsmooth founding cooperation for the broken wall of rich chromium cast iron and broken wall upper portion with broken wall lower part for the broken wall of mn13, broken wall lower part. 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.

Description

The circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron

Technical field

The utility model relates to a kind of circular cone sand making machine can meet wear-resisting requirement to rubble fragmentation in sand process processed, the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron 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 comprises 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%, is equal to or less than 32%.Advantage: one is that crushing wall anti-wear performance improves greatly, and its wearability is about 5 times of current potassium steel crushing wall, not only greatly extends service life, and the use cost of user reduces significantly; Two is achieve the impact resistance that improve high chromium white antifriction cast iron crushing wall by the structure of physics, effectively the impulsive force of slowly-releasing suffered by high chromium white antifriction cast iron crushing wall, solves high chromium white antifriction cast iron crushing wall and to be hit the defect of cracky.But, because circular cone sand making machine is crushed to the different duty of two kinds, sand system processed from building stones in the process of sand processed, its crushing wall top is used for broken building stones, building stones to crushing wall top formed be impact load and contact extruding, and that what building stones and crushing wall were formed is is uncertain, be not that the impact extruded rubble of whole contact coordinates, thus relatively little to the state of wear on crushing wall top; And crushing wall bottom is for rolling sand portion processed, what broken little building stones and crushing wall were formed contacts completely, the rolling of plyability, under the little brute force at crushing wall and crushing wall of its broken gravelstone between crushing wall and rolled mortar wall rolls, the wearing and tearing of sandstone to crushing wall (also comprise roll mortar ward off) are very serious.If adopt homogenous material to make crushing wall, no matter be manganese steel, or rich chromium cast iron, because the building stones of different size are different to the wear extent of crushing wall, result causes the situation that crushing wall Upper wear is little, middle part wearing and tearing opposite upper parts is little and formation groove is worn and torn in bottom, causes 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 wear-resisting requirement to rubble fragmentation in sand process processed, the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron of the wear-resisting requirement rolling sand processed can be met again.

Design: in order to realize above-mentioned purpose of design.The utility model is in structural design: 1, crushing wall top is Mn13 crushing wall, crushing wall bottom is the design of rich chromium cast iron crushing wall, is one of technical characteristic of the present utility model.The object of such design is: one is Mn13 is opposing thump, one of optimal selection in the high-abrasive materials such as large pressure material wearing and tearing, it not only has the incomparable Work Hardening Characteristic of other high-abrasive material, and in greater impact load or compared with under the effect of large contacting stress, the top layer of its manganese steel steel plate Mn13 produces work hardening, case hardness rises to more than HB500 rapidly by HB200, and along with the wearing and tearing gradually of cementation zone, new work hardening layer can successively be formed, thus produce endlessly while high abrasion superficial layer, and Mn13 internal layer austenite still keeps good impact flexibility.The utility model utilizes this characteristic of Mn13 just, the top of crushing wall (or middle part and top) is adopted Mn13, because crushing wall top is for broken building stones, what building stones were formed crushing wall top is impact load just, thus crushing wall case-hardening can be made, hardness promotes rapidly, meets crushing wall top to the hardness requirement of rubble and wear-resisting requirement, two is rich chromium cast irons is can obtain 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, the utility model utilizes the above-mentioned characteristic of rich chromium cast iron to adopt it as the bottom moulding material of crushing wall just, portion is rolled in stone roller sand process processed in the crushing wall bottom that it not only solves background technology existence, its rate of wear is greater than the situation that the crushing wall bottom wearing and tearing brought on crushing wall top form groove, the wear extent of crushing wall bottom is made to define optimum coupling with the wear extent on crushing wall top, avoid crushing wall Upper wear amount little, the generation of bottom wear damage situation, not only greatly extend the service life of crushing wall, and while the use cost greatly reducing crushing wall, reduce sand cost processed.2, the design of mold bed die is watered in upper surface, crushing wall bottom as crushing wall top, is technical characteristic two of the present utility model.The object of such design is: the upper surface due to crushing wall bottom is provided with annular groove and the cross section of annular groove is lower large little, or to be provided with cross section be lower little large annular boss in the upper surface of crushing wall bottom, when it is as crushing wall top shaping mould bed die, be cast to the upper surface annular groove watering melting Mn13 and crushing wall bottom in mold on crushing wall top, or annular boss forms fine and close male-female engagement, form concavo-convex founding after cooling and demolding to coordinate, crushing wall bottom synchronous can be driven to rise when rising under the effect of crushing wall top in external force, thus reach the size of Longkou (rolling chamber) between convenient adjustment crushing wall and crushing wall.3, using crushing wall bottom upper surface annular groove or annular boss portion as crushing wall top shaping mould bed die, and making the design being in the state of cooling beyond the annular groove in crushing wall bottom or annular boss Access Division, is technical characteristic three of the present utility model.The object of such design is: have annular groove or annular boss clamping shaping mould and the cross section of annular groove is lower large little because crushing wall waters mold counterdie upper surface, annular boss cross section is up big and down small, when it is as crushing wall top shaping mould bed die, be cast to annular groove that the crushing wall top melting Mn13 watered in mold enters crushing wall bottom to form fine and close concavo-convex founding and coordinate, the crushing wall of Mn13 and rich chromium cast iron formation is obtained after cooling and demolding, crushing wall bottom synchronous can be driven to rise when rising under the effect of crushing wall top in external force, thus reach the size of Longkou (rolling chamber) between convenient adjustment crushing wall and crushing wall.4, using the lower surface annular groove on crushing wall top or annular boss portion as crushing wall bottom shaping mould bed die, and make the design being in the state of cooling beyond the annular groove in crushing wall top or annular boss Access Division, be technical characteristic four of the present utility model.The object of such design is: the lower surface due to crushing wall top has annular groove or annular boss and the cross section of annular groove is inner young greatly, annular boss cross section is that the large tail of head is little, when it is as crushing wall bottom shaping mould bed die, be cast to the interior concavo-convex founding cooperation forming densification of annular groove that the crushing wall bottom melting rich chromium cast iron watered in mold enters crushing wall top, the crushing wall of Mn13 and rich chromium cast iron formation is obtained after cooling and demolding, crushing wall bottom synchronous can be driven to rise when rising under the effect of crushing wall top in external force, thus reach 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 be made up of Mn13 and rich chromium cast iron, crushing wall top is Mn13, crushing wall bottom is rich chromium cast iron and crushing wall top and crushing wall bottom are concavo-convex founding coordinates.

The 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, because the building stones of different size are different to the wear extent of crushing wall, the crushing wall Upper wear caused is little, bottom wearing and tearing are large and cause roll sand chamber processed shape formation groove and cannot the critical defect of sand processed; The wear extent that two is wear extenies of producing at broken building stones of the Mn13 on crushing wall top rolls sand chamber processed with rich chromium cast iron crushing wall bottom is relative consistent, thus sand chamber processed is rolled in stone roller sand process processed in the crushing wall bottom fundamentally solving homogenous material, due to wear extent be greater than crushing wall Upper wear amount cause the situation of groove, not only greatly extend the service life of crushing wall, and while the use cost greatly reducing crushing wall, reduce sand cost processed.

Accompanying drawing explanation

Fig. 1 is the structural representation of the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron.

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 circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron, crushing wall top 1 is Mn13, crushing wall bottom 2 is for rich chromium cast iron and crushing wall top 1 coordinates 4 with crushing wall bottom 2 in concavo-convex founding, 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.Mn13 crushing wall height is greater 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: (1) routinely fabrication techniques crushing wall bottom waters mold, mold is watered in the crushing wall bottom made to be placed on dither platform, under the vibration of dither platform, melting rich chromium cast iron is cast to crushing wall bottom and waters mold, obtain crushing wall bottom after cooling forming, then crushing wall bottom is heat-treated; (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 melting Mn13 is cast to crushing wall top under the vibration of dither platform waters in mold, heat-treats after cooling and demolding to crushing wall top; (3) after carrying out finishing by the crushing wall of Mn13 and rich chromium cast iron cast molding, the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron is namely obtained.

Embodiment 2: on the basis of embodiment 1, Mn13 crushing wall lower surface and rich chromium cast iron crushing wall upper surface are that concavo-convex founding coordinates.Mn13 crushing wall lower surface is annular boss and annular boss cross section is low wide and up narrow trapezium structure, and rich chromium cast iron crushing wall upper surface is annular groove and annular groove cross section is low wide and up narrow trapezium structure and matches with the annular boss of Mn13 crushing wall lower surface.

Embodiment 3: on the basis of embodiment 1, Mn13 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 rich chromium cast iron 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 matches with the annular groove of Mn13 crushing wall lower surface.

It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present utility model; but these text descriptions; just the simple text of the utility model mentality of designing is described; instead of the restriction to the utility model mentality of designing; any do not exceed the utility model mentality of designing combination, increase or amendment, all fall in protection domain of the present utility model.

Claims (7)

1. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron, it is characterized in that: crushing wall top is Mn13, crushing wall bottom be rich chromium cast iron and rich chromium cast iron hardness up to HVl200-1600, crushing wall top and crushing wall bottom are that concavo-convex founding coordinates.

2. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 1, is characterized in that: Mn13 crushing wall lower surface and rich chromium cast iron crushing wall upper surface are that concavo-convex founding coordinates.

3. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 2, it is characterized in that: Mn13 crushing wall lower surface is annular boss and annular boss cross section is low wide and up narrow trapezium structure, rich chromium cast iron crushing wall upper surface is annular groove and annular groove cross section is low wide and up narrow trapezium structure and matches with the annular boss of Mn13 crushing wall lower surface.

4. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 2, it is characterized in that: Mn13 crushing wall lower surface is annular groove and annular recessed cross section is trapezium structure wide at the top and narrow at the bottom, rich chromium cast iron 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 matches with the annular groove of Mn13 crushing wall lower surface.

5. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 1, is characterized in that: Mn13 crushing wall height is greater than the height of rich chromium cast iron crushing wall.

6. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 1, is characterized in that: the material of Mn13 crushing wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5.

7. the circular cone sand making machine crushing wall be made up of Mn13 and rich chromium cast iron according to claim 1, is characterized in that: rich chromium cast iron crushing wall material is Cr15 or Cr26.