CN204952969U - Broken wall of two ingredient cone sand making machine - Google Patents

Abstract

The utility model relates to a two-component cone sand making machine which can not only meet the wear-resisting requirements for gravel crushing but also meet the wear-resisting requirements for crushing sand during the sand making process. The upper part of the wall is Mn13, the lower part of the crushing wall is made of high chromium cast iron, and there is an annular groove on the outer or inner wall of the lower part of the crushing wall, which forms a concave-convex casting fit with the annular groove on the upper inner or outer wall of the crushing wall. Advantages: First, it fundamentally solves the problem of wear on the upper part of the crushing wall caused by different specifications of stones in the sand making process of the crushing wall made of single material (whether it is manganese steel or high chromium cast iron). Small size and heavy wear at the lower part lead to the fatal defect that the crushed sand cavity forms grooves and cannot make sand; the second is that the Mn13 in the upper part of the crushing wall produces the same amount of wear as the crushed stones and the lower part of the high chromium cast iron crushing wall. The amount of wear in the sand chamber is relatively consistent.

Description

Two-component cone sand making machine broken wall

technical field

The utility model relates to a crushing wall of a two-component cone sand making machine which can not only meet the wear-resisting requirements of gravel crushing but also meet the wear-resisting requirements of rolling and compacting sand in the sand making process of a cone sand making machine. Cone sand making machine component assembly manufacturing field.

Background technique

CN102350388A, the name "high chromium rolling mortar wall assembly for conical sand making machine", it includes the rolling mortar wall assembly, and it is characterized in that: the material of the rolling mortar wall is high chromium white wear-resistant cast iron, and its chromium content is greater than or equal to 9%, equal to or less than 32%. Advantages: First, the wear resistance of the rolling mortar wall is greatly improved, and its wear resistance is about 5 times that of the current Mn13 rolling mortar wall. Not only the service life is greatly extended, but the user's use cost is also greatly reduced; The structure improves the impact resistance of the high-chromium white wear-resistant cast iron rolling wall, effectively slows down the impact force on the high-chromium white wear-resistant cast iron rolling wall, and solves the problem of high-chromium white wear-resistant cast iron rolling. The defect that the wall of the socket is easily damaged by impact. However, because the cone sand making machine has two different working states from stone crushing to sand making in the process of sand making, the upper part of the rolling mortar wall is used for crushing stone materials, and the impact load formed by the stone materials on the upper part of the rolling mortar wall And contact extrusion, and the stone material and the wall of the rolling mortar are indeterminate, not all contact crushed crushed stones, so the wear state of the upper part of the wall of the rolling mortar is relatively small; while the lower part of the wall of the rolling mortar is rolling. In the sand making section, the crushed stones are completely in contact with the wall of the mortar, and the rolling is overlapped. Sand and gravel are very serious in wearing and tearing the rolling mill (including the broken wall). If a single material is used to make the wall of the mortar, no matter it is manganese steel or high-chromium cast iron, the wear amount of the stone of different specifications on the wall of the mortar is different. When the lower part wears and forms grooves, the wall of the rolling socket is worn out and scrapped.

Utility model content

Design purpose: To avoid the deficiencies in the background technology, to design a double-group cone sand making machine that can meet both the wear-resistant requirements for crushing gravel and the wear-resistant requirements for crushing sand during the sand making process. Parts cone sand making machine crushes the wall.

Design scheme: In order to achieve the above design purpose. In structural design of the utility model: 1, the design that the upper part of the crushing wall is Mn13, and the lower part of the crushing wall is high chromium cast iron is one of technical characteristics of the present utility model. The purpose of this design is: Mn13 is one of the best choices among wear-resistant materials such as strong impact and high-pressure material wear. Under the action of large contact stress, the surface layer of the manganese steel plate Mn13 produces work hardening, and the surface hardness rapidly increases from HB200 to above HB500, and with the gradual wear of the surface hardened layer, new work hardened layers will be continuously formed, resulting in While a steady stream of high wear-resistant surface layer, while the Mn13 inner austenite still maintains good impact toughness. This utility model just utilizes this characteristic of Mn13, and adopts Mn13 in the upper part (or the middle part and the upper part) of the crushing wall. Since the upper part of the crushing wall is used for crushing stones, the impact load formed by the stones on the upper part of the crushing wall is just impact load, so It can harden the surface of the crushing wall and rapidly increase the hardness, which meets the hardness and wear resistance requirements of the upper part of the crushing wall; while the high chromium cast iron can obtain martensite or austenite or secondary cast iron through high alloying and heat treatment. The mixed matrix and the special carbide of chromium, this special carbide is Me, C in the hexagonal crystal system, its hardness is as high as HVl200-1600, it has much higher wear resistance than high manganese steel, and its resistance The abrasiveness is several times that of Mn13, and it also has good high temperature resistance and corrosion resistance. The utility model uses the above-mentioned characteristics of high chromium cast iron as the lower forming material of the broken wall. It not only solves the problems of the background technology In the process of grinding sand, the lower part of the crushing wall wears faster than the upper part of the crushing wall, which causes the lower part of the crushing wall to wear and form grooves, so that the wear amount of the lower part of the crushing wall is formed by the wear amount of the upper part of the crushing wall. Good matching is achieved, which avoids the occurrence of small wear on the upper part of the crushing wall and worn damage on the lower part, which not only greatly prolongs the service life of the crushing wall, but also greatly reduces the use cost of the crushing wall and reduces the cost of sand making . 2. It is the technical feature of this utility model to use the outer wall or inner wall annular groove part of the lower part of the broken wall as the bottom mold of the upper part of the broken wall, and make the ring groove in the lower part of the broken wall in a cooling state except for the clamping part. of two. The purpose of this design is: because there is an annular groove on the outer wall or inner wall of the lower mold of the broken wall casting mold, and the cross section of the annular groove is large inside and small outside, and the groove along the opening of the annular groove There is a trumpet-shaped casting runner. When it is used as the bottom mold of the upper part of the crushing wall, the molten Mn13 cast into the casting mold on the upper part of the crushing wall enters the annular groove at the lower part of the crushing wall to form a dense concave-convex snap fit. After cooling and stripping The crushing wall made of Mn13 and high chromium cast iron can drive the lower part of the crushing wall to rise synchronously when the upper part of the crushing wall rises under the action of external force, so as to facilitate the adjustment of the dragon mouth (rolling chamber) between the crushing wall and the crushing wall. size. 3. It is the technical feature of this utility model to use the outer wall or inner wall annular groove part in the upper part of the crushing wall as the bottom mold of the forming die of the lower part of the crushing wall, and make the ring groove clamping part in the upper part of the crushing wall be in a cooling state, which is the technical feature of the utility model the third. The purpose of this design is: since there is an annular groove on the outer wall or inner wall of the upper part of the crushing wall, and the cross section of the annular groove is large inside and small outside, and the upper groove of the annular groove has a trumpet-shaped casting runner along the groove, when it is used as a broken When the lower part of the wall is forming the bottom mold, the molten high-chromium cast iron cast into the casting mold at the lower part of the crushing wall enters the annular groove at the upper part of the crushing wall to form a dense concave-convex snap fit, and after cooling and demoulding, a mold composed of Mn13 and high-chromium cast iron is obtained. The crushing wall, when the upper part of the crushing wall rises under the action of external force, it can drive the lower part of the crushing wall to rise synchronously, so as to facilitate the adjustment of the size of the gap (rolling cavity) between the crushing wall and the crushing wall.

Technical solution: a two-component cone sand making machine with a broken wall, the upper part of the broken wall is made of Mn13, the lower part of the broken wall is made of high-chromium cast iron, and there is an annular groove on the outer or inner wall of the lower part of the broken wall, which is connected to the upper inner or outer wall of the upper part of the broken wall. The grooves form a male and female cast fit.

Compared with the background technology, the utility model fundamentally solves the problem that the crushing wall of a single material (whether it is manganese steel or high chromium cast iron) is different in the sand making process due to different sizes of stones on the crushing wall. The small wear on the upper part of the crushing wall and the large wear on the lower part of the crushing wall resulted in the formation of grooves in the shape of the crushing sand cavity and the fatal defect that sand making cannot be made; the second is the wear amount of Mn13 on the upper part of the crushing wall in the crushed stone and the high chromium The wear amount of the lower part of the cast iron crushing wall is relatively consistent, so it fundamentally solves the problem that the lower part of the crushing wall with a single material is more worn than the upper part of the crushing wall during the sand making process. The situation of the groove not only greatly prolongs the service life of the crushing wall, but also greatly reduces the use cost of the crushing wall and at the same time reduces the cost of sand making.

Description of drawings

Figure 1 is a schematic diagram of the structure of the broken wall of the two-component cone sand making machine.

Fig. 2 is a structural schematic diagram of a broken wall matched with a broken wall.

Fig. 3 is a schematic diagram of the structure of a broken wall made of a single material.

detailed description

Embodiment 1: with reference to accompanying drawing 1-2. A kind of crushing wall of a two-component cone sand making machine, the upper part 1 of the crushing wall is Mn13, the lower part 2 of the crushing wall is high-chromium cast iron, and there is an annular groove on the outer or inner wall of the lower part of the crushing wall and is connected with the annular groove on the inner or outer wall of the upper part of the crushing wall. The groove forms a concave-convex casting fit 3, that is, the upper part of the crushing wall 1 annular boss is cast in the crushing wall lower part 2 annular groove, or the crushing wall upper part 1 annular groove is cast on the crushing wall lower part 2 annular bosses. A trumpet-shaped casting runner is arranged along the upper groove of the annular groove. The height of the broken wall of Mn13 is greater than that of the broken wall 2 of high chromium cast iron. The material of the Mn13 broken wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5. The high chromium cast iron crushing wall material is Cr15 or Cr26.

The first manufacturing method: (1) Make the casting mold for the lower part of the broken wall according to the conventional technology, and there are grooves on the outer wall or the inner wall of the lower mold of the broken wall casting mold, and place the lower mold of the lower part of the broken wall on the high On the high-frequency vibration platform, under the vibration of the high-frequency vibration platform, the molten high-chromium cast iron is cast into the casting mold of the lower part of the crushing wall, and the lower part of the crushing wall is obtained after cooling and forming, and then the lower part of the crushing wall is heat treated; (2) the lower part of the crushing wall The groove clamping part is used as the bottom mold of the forming mold of the upper part of the crushing wall, and the groove clamping part of the lower part of the crushing wall is in a cooling state, and then the casting mold of the upper part of the crushing wall is made and placed on a high-frequency vibration platform. Molten Mn13 is cast into the casting mold on the upper part of the crushing wall under vibration. After cooling and forming, the upper part of the crushing wall and the lower part of the crushing wall form a concave-convex snap fit. After the mold is removed, the upper part of the crushing wall is heat treated; Mn13 and high chromium cast iron cast broken wall can be finished. The height of the broken wall of Mn13 is greater than that of the broken wall 2 of high chromium cast iron. The material of the Mn13 broken wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5. The high chromium cast iron crushing wall material is Cr15 or Cr26.

The second manufacturing method: (1) Make the casting mold for the upper part of the crushing wall according to the conventional technology and there is an annular groove on the outer wall or the inner wall of the casting mold for the upper part of the crushing wall to form a clamping mold, and place the finished casting mold for the upper part of the crushing wall in high frequency On the vibrating platform, under the vibration of the high-frequency vibration platform, the molten Mn13 is cast into the casting mold on the upper part of the crushing wall, and the upper part of the crushing wall is cooled and demoulded, and then the upper part of the crushing wall is heat treated; The bottom mold of the lower part of the wall forming mold and the upper part of the broken wall are in a cooling state, then the casting mold for the lower part of the broken wall is made and placed on a high-frequency vibration platform, and the molten high-chromium cast iron is poured into the lower part of the broken wall under the vibration of the high-frequency vibration platform In the mold, after cooling and forming, the lower part of the crushing wall and the upper part of the crushing wall form a concave-convex snap fit, and after demoulding, the lower part of the crushing wall is heat treated; (3) After finishing the crushing wall formed by Mn13 and high chromium cast iron The two-component cone sand making machine breaks the wall. The height of the broken wall of Mn13 is greater than that of the broken wall 2 of high chromium cast iron. The material of the Mn13 broken wall is ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5. The high chromium cast iron crushing wall material is Cr15 or Cr26.

What needs to be understood is: although the above-mentioned embodiments have done more detailed text descriptions to the design ideas of the present utility model, these text descriptions are only simple text descriptions to the design ideas of the present utility model, rather than limitations to the design ideas of the present utility model. Any combination, addition or modification that does not exceed the design concept of the present utility model falls within the protection scope of the present utility model.

Claims (5)

1. a two component circular cone sand making machine crushing wall, is characterized in that: crushing wall top is Mn13, crushing wall bottom is rich chromium cast iron and crushing wall bottom outer wall or inwall have annular groove and form concavo-convex founding with annular groove on crushing wall upper inside wall or outer wall coordinate.

2. according to claim 1 pair of component circular cone sand making machine crushing wall, is characterized in that: on annular groove, groove is along having tubaeform casting runner.

3. according to claim 1 pair of component circular cone sand making machine crushing wall, is characterized in that: Mn13 crushing wall height is greater than the height of rich chromium cast iron crushing wall.

4. according to claim 1 pair of component circular cone sand making machine crushing wall, is characterized in that: the material of Mn13 crushing wall is ZGMn13-1 or ZGMn13-2 or ZGMn13-3 or ZGMn13-4 or ZGMn13-5.

5. according to claim 1 pair of component circular cone sand making machine crushing wall, is characterized in that: rich chromium cast iron crushing wall material is Cr15 or Cr26.