Cutter for crusher and crusher using same

Abstract

Conventional cutters for crushers for crushing unwanted objects to be crushed and crushers using the cutters are known. However, when an object to be crushed is crushed, the finely crushed object is sometimes sandwiched between the cutter and the side surface of the crusher, and when the cutter is moved forward in this state, the side surface of the crusher is pressed, and the crusher is likely to be damaged. The present invention provides a cutter for a crusher and a crusher using the cutter, in which a plurality of cutter parts are provided protruding from the surface of a cutter plate, the cutter for a crusher is characterized in that the cutter parts are mountain-shaped cutter parts or notched cone-frustum-shaped cutter parts, and the mountain-shaped cutter parts or notched cone-frustum-shaped cutter parts are arranged in a staggered manner. A mountain-shaped blade part or a notched cone frustum-shaped blade part protruding from the surfaces of the two end sides in the left-right direction of the blade plate is of a half structure divided by the longitudinal cross section, and an inclined part obtained by inclining the surfaces of the two end sides in the left-right direction of the blade plate towards the inner side is arranged on the lowermost layer. And a vertical belt-shaped part connected with the outer end of the inclined part.

Description

Technical Field

[0001] The present invention relates to a cutting tool for a crusher for crushing materials, and a crusher utilizing the cutting tool. Background Technology

[0002] Crushers are widely known for crushing unwanted castings, sprues, runners, gates, and other materials. These crushers use both fixed and moving cutters to finely crush materials fed into the crushing space between the fixed and moving cutter supports. To achieve efficient crushing, the cutters used in the crusher are particularly important.

[0003] When crushing materials, finely crushed materials sometimes get caught between the side of the crusher and the cutter. When the cutter is moved forward in this state, the side of the crusher is pressed down, and the crusher may break. Here, as an example of literature related to a crusher cutter for crushing materials characterized by preventing the material from getting caught between the sides of the crusher, document 1 as described below can be cited.

[0004] The invention described in Document 1 is a cutting tool used to further crush a primary material obtained from the primary crushing of a waste engine using a cutting machine into aluminum-based and iron-based materials to obtain a secondary material. It is characterized by having: a planar portion; and a plurality of grooves spaced apart in the width direction of the planar portion, extending from one end of the planar portion in the length direction to the middle portion. The planar portion is rectangular, and protruding portions extending from both ends in the width direction of the planar portion are formed along approximately the entire length of the planar portion. Furthermore, as described in paragraph

[0062] , it serves to prevent the material from moving to the outside of the width direction of the cutting tools 5 and 8 (where the material is pressed) because protruding portions 27 are formed at both ends in the width direction of the cutting tools 5 and 8. Figure 6 The effect of the wall component 31 of the housing 3 shown.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2006-263526 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, in the invention of Document 1, the protruding parts at both ends of the planar portion in the width direction are formed to extend over approximately the entire length of the planar portion in the length direction. However, such a structure becomes a large-scale structure and may increase the cost.

[0008] Methods for solving problems

[0009] Therefore, the present invention provides a tool for a crusher that can prevent crushed materials from getting stuck between the sides of the crusher through a simple structure, and a crusher equipped with the tool.

[0010] The invention of technical solution 1 is a blade for a crusher, which has multiple blades protruding from the surface of the blade plate. The blade for the crusher is characterized in that the blades are set as mountain-shaped blades or notched frustum-shaped blades, and the mountain-shaped blades or notched frustum-shaped blades are arranged alternately. The mountain-shaped blades or notched frustum-shaped blades protruding from the surfaces of the two ends of the blade plate in the left and right directions are constructed as half of a longitudinal section. An inclined portion is provided at the bottom layer, which is obtained by tilting the surfaces of the two ends of the blade plate in the left and right directions inward. The inclined portion has a vertical strip connected to the outer end of the inclined portion.

[0011] The invention of technical solution 2 is based on the blade for the crusher described in technical solution 1, and is characterized in that the surface of the blade plate is further provided with multiple rib-shaped blades and / or cross-shaped blades, and the rib-shaped blades and / or cross-shaped blades are connected to the mountain-shaped blades and / or notched frustum-shaped blades.

[0012] The invention of technical solution 3 is based on the crusher cutting tool described in technical solution 1 or 2, characterized in that the cutting tool is made of high manganese cast steel containing 11% to 14% manganese by mass.

[0013] The invention of technical solution 4 is a crusher, comprising: a pair of left and right main frames, fixed blades disposed between the main frames, and movable blades that move back and forth relative to the fixed blades. The crusher has an upper open part for feeding the crushed material and a lower open part for discharging the crushed material. The crusher is characterized in that the fixed blades and / or movable blades are the blades described in claim 1 or 2.

[0014] The invention of technical solution 5 is a crusher, comprising: a pair of left and right main frames, fixed blades disposed between the main frames, and movable blades that move back and forth relative to the fixed blades. The crusher has an upper open part for feeding the crushed material and a lower open part for discharging the crushed material. The crusher is characterized in that the fixed blades and / or movable blades are the blades described in claim 3.

[0015] Invention Effects

[0016] According to the present invention, during crushing, the material to be crushed located at the end of the blade can slide into the inside of the blade through the inclined portion, thus enabling efficient and reliable crushing of the material and significantly reducing the output of the working cylinder pressing the blade. Furthermore, by providing a strip-shaped portion at the end of the inclined portion, the inclined portion and the blade itself can be firmly secured. Attached Figure Description

[0017] Figure 1 This is a front view of a fixed tool with the inclined and strip-shaped parts positioned below the blade in the vertical direction.

[0018] Figure 2 yes Figure 1 A three-dimensional image.

[0019] Figure 3 This is a front view of a moving tool with the inclined and strip-shaped parts positioned below the blade in the vertical direction.

[0020] Figure 4 yes Figure 3 A three-dimensional image.

[0021] Figure 5 This is a detailed partial view of the lower right corner (tilted section and strip section) of the moving tool. Figure 5 (a) is the front view. Figure 5 (b) is a perspective view from below. Figure 5 (c) is a 3D diagram.

[0022] Figure 6 This is a front view of the first embodiment of the mountain-shaped blade and the rib-shaped blade.

[0023] Figure 7 This is a front view of the second embodiment of the mountain-shaped blade and the rib-shaped blade.

[0024] Figure 8 It is a front view of a fixed cutting tool with a notched frustum-shaped cutting edge and a ribbed cutting edge.

[0025] Figure 9 It is a 3D view of a crusher equipped with fixed and movable blades.

[0026] Figure 10 This is a side view of a crusher showing the track of the moving cutter blades.

[0027] Figure 11 This is a side view of the main parts of a crusher that crushes the material. Detailed Implementation

[0028] This invention relates to a tool 1 for a crusher 100 capable of finely crushing unwanted castings, sprues, runners, gates, and other materials CM, and to a crusher 100 utilizing this tool 1. First, the tool 1 will be described.

[0029] The cutter 1 is a fixed cutter 11 (reference) that is fixedly installed on the front side F of the crusher 100. Figure 1 , Figure 2 (etc.) and a movable moving cutter 12 (reference) disposed on the rear side B of the crusher 100 opposite to the fixed cutter 11. Figure 3 , Figure 4 This consists of a pair of fixed cutters 11 and movable cutters 12. These fixed cutters 11 and movable cutters 12 are arranged between a pair of main frames 110, 110 on the left and right sides of the crusher 100. The material to be crushed, CM, is crushed by the movable cutters 12, which move back and forth relative to the fixed cutters 11, or more specifically, by the cutter portions 10 of the fixed cutters 11 and the movable cutters 12. The fixed cutters 11 and movable cutters 12 can be structures that can be divided into upper and lower sides, or they can be integrally formed structures.

[0030] The cutting tool 1 consists of a blade plate 3 and a plurality of blade portions 10 protruding from the surface 5 of the blade plate 3. The blade plate 3 is formed of a rectangular plate, but its length and thickness are arbitrary. In addition, its shape is also arbitrary, so the lower end of the blade plate 3 can be bent.

[0031] Regarding the cutting tool 10, as will be described later, in addition to the mountain-shaped cutting tool 20 and the notched frustum-shaped cutting tool 50, there are also cross-shaped cutting tools 40, ribbed cutting tools 60, etc., but these can be used in various arbitrary combinations. The structure and configuration of each cutting tool 10 will be described below. Furthermore, since the fixed cutting tool 11 and the moving cutting tool 12 are common to the cutting tool 10, the same reference numerals are used in all figures.

[0032] right Figure 1 , Figure 6 The first embodiment of the mountain-shaped blade 20 shown in the figure will be described. The mountain-shaped blade 20 of the first embodiment is composed of a foot portion 22 and a flat top 30. A rectangular blade 26 is arranged between the two inclined surfaces 23 and 23 that are inclined toward the flat top 30. The rectangular blade 26 is formed into a cross shape by a plurality of inclined recesses 34 on the flat top 30.

[0033] The shape constituting the mountain-shaped cutter 20 is formed by a composite polyhedron on its surface, which combines deformed quadrilaterals (sloping surface 23), triangles (sloping recess 34), rectangles (rectangular cutter 26), cross shapes (rectangular cutter 26 formed on the flat top 30), etc. The mountain-shaped cutter 20 has a shape that gradually widens from the side of the flat top 30 to the side of the surface 5 of the cutter plate 3, and is formed such that its height gradually increases as it approaches the side of the flat top 30.

[0034] As described above, rectangular blades 26 are arranged along the slopes 23, 23, between the slopes 23 that face the flat top 30 of the foot section 22, forming a group. Furthermore, by arranging these groups in a series of four interconnected vertically and horizontally, a mountain-shaped blade section 20 is formed. Therefore, a mountain-shaped blade section 20 has a total of eight slopes 23 and four rectangular blades 26. The foot section 22 as a whole is formed by four rectangular blades 26, creating four ridge lines.

[0035] The flat top 30 is formed into a cross shape by a plurality of inclined recesses 34. In other words, the rectangular blade 26 is formed into a cross shape by the combination of the bottom edges of each inclined recess 34.

[0036] The inclined recess 34 is formed by tilting a portion of the flat top 30 side of the inclined surface 23. Specifically, for example, a portion of the inclined surface 23 is tilted in a triangular shape. Since there are a total of eight inclined surfaces 23 in a mountain-shaped blade portion 20, there are also a total of eight inclined recesses 34.

[0037] The inclined recess 34 can be an inclined surface that is approximately triangular, quadrilateral, hemispherical, or otherwise. Alternatively, the inclined recess 34 can be a vertical surface instead of an inclined surface. In short, as long as the rectangular blade 26 with a flat top 30 is formed into a cross shape by means of the inclined recess 34, it is easy to apply stress concentration to the object being crushed CM, thereby crushing (cutting, etc.) more efficiently, and any structure is possible.

[0038] Furthermore, regarding the relationship between the rectangular blade 26 at the foot of the mountain 22 and the rectangular blade 26 at the flat top 30 that is formed in a cross shape, one end of the rectangular blade 26 at the foot of the mountain 22 is connected to one end of the cross shape of the rectangular blade 26 at the flat top 30, but it can also be a structure where they are not connected.

[0039] The figures primarily illustrate the yak-shaped blade 20 of the first embodiment, but it could also be... Figure 7 The second embodiment of the yak-shaped blade 20 is shown in the figure. The second embodiment of the yak-shaped blade 20 will be described.

[0040] The mountain-shaped blade portion 20 of the second embodiment is composed of a foot portion 22 and a tip portion 32. The foot portion 22 has a tip blade 28 disposed between the inclined surfaces 23 and 23 that are inclined toward the tip portion 32. The tip portion 32 is formed into a cross shape by means of multiple inclined recesses 34.

[0041] The shape constituting the mountain-shaped blade 20 is formed by a composite polyhedron on its surface, which combines deformed quadrilaterals (sloping surfaces 23), triangles (sloping recesses 34), cross shapes (the tip blade 28 formed at the tip 32), etc. Similar to the mountain-shaped blade 20 of the first embodiment, the mountain-shaped blade 20 of the second embodiment is formed such that it becomes wider at the end from the tip 32 side to the surface 5 side of the blade plate 3, and its height gradually increases as it approaches the tip 32.

[0042] As described above, the foot portion 22 has four sets of pointed blades 28 arranged along the slopes 23 and 23 that slope towards the tip 32, forming a group. These four sets are connected vertically and horizontally to form a mountain-shaped blade portion 20. Therefore, a mountain-shaped blade portion 20 has a total of eight slopes and four pointed blades 28. The foot portion 22 as a whole has four ridges formed by the four pointed blades 28.

[0043] The tip 32 is formed into a cross shape by means of a plurality of inclined recesses 34. In other words, the tip 28 is formed into a cross shape by means of the combination of the bottom edges of each inclined recess 34.

[0044] The inclined recess 34 is formed by indenting a portion of the tip 32 side of the inclined surface 23 at an incline. Specifically, for example, a portion of the inclined surface 23 is indented (inclined) in a triangular shape. Since there are a total of eight inclined surfaces in a mountain-shaped blade portion 20, there are also a total of eight inclined recesses 34.

[0045] The inclined recess 34 can be an inclined surface that is approximately triangular, quadrilateral, hemispherical, or otherwise. Alternatively, the inclined recess 34 can be a vertical surface instead of an inclined surface. In short, as long as the tip blade 28 of the tip 32 is formed into a cross shape by means of the inclined recess 34, thereby making it easier to apply stress concentration to the object being broken CM and to cut (break, etc.) more efficiently, any structure is possible.

[0046] Furthermore, regarding the relationship between the tip knife 28 of the foot portion 22 and the tip knife 28 of the tip 32, which is formed in a cross shape, it is a structure in which one end of the tip knife 28 of the foot portion 22 is connected to one end of the cross shape of the tip knife 28 of the tip 32, but it can also be a structure in which they are not connected.

[0047] Regarding the structure of the mountain-shaped cutter section 20, the following example is provided: Regarding the foot of the mountain 22, a group is formed by arranging rectangular cutters 26 and pointed cutters 28 along the inclined surfaces 23, sloping towards the flat top 30 or the pointed top 32. This group is arranged in a continuous sequence (up, down, left, right) for a total of four groups in the front view, thus forming a mountain-shaped cutter section. However, it is also possible to arrange five or more groups to form a mountain-shaped cutter section 20. In this case, the number of inclined surfaces in a mountain-shaped cutter section 20 is ten or more, and the number of rectangular cutters 26 or pointed cutters 28 is five or more.

[0048] Regarding the flat top 30 or pointed top 32 of the mountain-shaped blade portion 20, an example of the rectangular blade 26 or pointed blade 28 being formed in a cross shape is described. However, when there are five or more sets of the above-described configuration, the flat top 30 or pointed top 32 of the mountain-shaped blade portion 20 is formed by the combination of the bottom edges of the multiple inclined recesses 34, resulting in the rectangular blade 26 or pointed blade 28 being formed in a roughly T-shape (in the case of five sets of configuration), a radial shape (in the case of six sets of configuration), etc.

[0049] Alternatively, a group of rectangular blades 26 or pointed blades 28 arranged along the two inclined surfaces 23, 23, sloping towards the flat top 30 or the pointed top 32 can be set as three combinations (top, bottom, left, and right in the main view), and the others (bottom in the main view) can be set as other shapes. That is, it is not necessary to form all of the top, bottom, left, and right in the main view with the above-mentioned group, or a part can be set as a different shape.

[0050] The mountain-shaped blade 20 can also be other frustum shapes. Frustums can be circular frustums, multi-faceted frustums, etc. Examples of multi-faceted frustums include triangular frustums and square frustums. Furthermore, the vertex of the frustum can be a curved surface in addition to a horizontal or inclined surface; additionally, a portion can be truncated.

[0051] Next, the notched frustum-shaped cutting part 50 will be described. The notched frustum-shaped cutting part 50 is formed by removing a portion of a frustum; specifically, it is a shape obtained by removing a portion from the front end face 56 side of the frustum to the opposite side (surface 5 side) (see reference). Figure 8 ).

[0052] The notched frustum-shaped cutter 50 is mainly composed of a beveled surface 53, a front end face 56, and a notched surface 57. It widens at the end from the front end face 56 to the surface 5 of the cutter plate 3, with the height gradually increasing towards the front end face 56. The beveled surface 53 slopes gently towards the front end face 56. The apex of the notched frustum-shaped cutter 50 is the front end face 56. This front end face 56 can be of any shape. For example, besides a horizontal plane, it can be a curved surface, or it can be partially cut off. It can also be formed into a downward-facing mouth shape. The notched surface 57 can also be of any shape. For example, the bottom surface of the notched frustum-shaped cutter 50 can be perpendicular to the surface 5 of the cutter plate 3, or it can be at an angle. Furthermore, besides a flat surface, it can also be a multi-faceted shape.

[0053] The blade portions 10 (mountain-shaped blade portion 20, notched frustum-shaped blade portion 50) protruding from the surface 5 of the blade plate 3 can be arranged in order from top to bottom as follows: uppermost layer, second layer, third layer, and lowermost bottommost layer. However, as long as the effect of the present invention can be achieved, there can be more or fewer blade portions. That is, the number or number of rows of blade portions 10 is flexible.

[0054] The height of each blade 10 can be the same in the top, second, third, and bottom layers, or it can be configured such that the second or third layer is higher than the top or bottom layer. When the blade 10 in the top layer is higher than the blades 10 in other layers, it is possible to crush the material CM while pressing it from above.

[0055] Furthermore, regarding the arrangement of the blades 10, they can be arranged side by side, but it is preferable that they are arranged in a parallel configuration. Figure 1 The staggered arrangement is shown in the figure. When the mountain-shaped cutter portions 20 or the notched frustum-shaped cutter portions 50 are staggered, it is preferable to connect the mountain-shaped cutter portions 20 or the notched frustum-shaped cutter portions 50 using rib-shaped cutter portions 60. Next, the rib-shaped cutter portions 60, which are provided with a plurality of protrusions from the surface 5 of the cutter 1 (first embodiment and second embodiment) will be described.

[0056] In the first embodiment, the ribbed blade 60 is roughly in the shape of a truncated pyramid, consisting of a rectangular blade 66 at the top and inclined surfaces 63, 63 connected to both sides of the rectangular blade 66. Regarding the length, it can be any length as long as it allows the mountain-shaped blade 20 and the notched truncated pyramid blade 50 to be connected to each other.

[0057] In the second embodiment (not shown), the ribbed blade 60 is approximately truncated triangular in shape, consisting of a pointed blade at the top and inclined surfaces connected to both sides of the pointed blade. That is, the blade of the second embodiment's ribbed blade 60, equivalent to the rectangular blade 66 of the first embodiment's ribbed blade 60, is a pointed blade. Regarding length, it can be any length as long as the mountain-shaped blade 20 and the notched truncated triangular blade 50 can be connected to each other.

[0058] Regarding the arrangement of the ribbed cutter parts 60 when the cutter parts 10 (mountain-shaped cutter parts 20 and notched frustum-shaped cutter parts 50) are arranged in an alternating manner, the cutter parts 10 are connected and inclined. That is, a rhombus can be formed by the four alternatingly arranged mountain-shaped cutter parts 20 and the ribbed cutter parts 60 that connect them. In other words, the mountain-shaped cutter parts 20 are located at the apex of the ribbed cutter parts 60. The area surrounded by each cutter part 10 (mountain-shaped cutter part 20 and notched frustum-shaped cutter part 50) and each ribbed cutter part 60 is defined as the fitting area MA, and the cutter parts 10 (mountain-shaped cutter parts 20 and notched frustum-shaped cutter parts 50) on the opposite side are fitted into this fitting area MA. Specifically, when the moving tool 12 moves forward, the mountain-shaped tool portion 20 or the notched frustum-shaped tool portion 50 of the moving tool 12 is engaged in the engagement area MA of the fixed tool 11, and the mountain-shaped tool portion 20 or the notched frustum-shaped tool portion 50 of the fixed tool 11 is engaged in the engagement area MA of the moving tool 12.

[0059] Furthermore, regarding the height relationship between the ribbed blade 60 and the mountain-shaped blade 20 or the notched frustum-shaped blade 50, it is set that the mountain-shaped blade 20 or the notched frustum-shaped blade 50 is higher than the ribbed blade 60. Specifically, it is preferable that, when viewed from the side, the top of the ribbed blade 60 is located in the middle of the foot 22 of the mountain-shaped blade 20 or the notched frustum-shaped blade 50. The combination of the portions on the blade plate 3 where the ribbed blade 60 is provided and the portions where it is not provided is arbitrary.

[0060] Alternatively, a grid pattern can be formed above the blade plate 3 using vertical blades 71 and horizontal blades 72. When vertical blades 71 and horizontal blades 72 are provided above the blade plate 3, a mountain-shaped blade section 20 or a notched frustum-shaped blade section 50 may be provided below these blades 71 and horizontal blades 72. It is expected that the vertical blades 71 and horizontal blades 72 will suppress the upward movement of the material being crushed (CM) during crushing.

[0061] Alternatively, a cross-shaped cutter portion 40 can be provided protruding from the surface 5 of the cutter plate 3, and the cross-shaped cutter portion 40 can be used to connect the mountain-shaped cutter portions 20 to each other or the notched frustum-shaped cutter portions 50 to each other. Figure 1 In this process, the lowest layer of the mountain-shaped blade 20 is connected to the third layer of the mountain-shaped blade 20. Alternatively, a stone-shaped blade 10 may be provided protruding from the lower end.

[0062] exist Figure 1 , Figure 3 In this configuration, a cross-shaped cutter 40 is provided within the fitting area MA surrounded by the mountain-shaped cutter 20 and each rib-shaped cutter 60. It connects the lowest-layered mountain-shaped cutter 20 with the third-layered mountain-shaped cutter 20, and also connects the lowest-layered mountain-shaped cutter 20, the third-layered mountain-shaped cutter 20, and the second-layered mountain-shaped cutter 20.

[0063] In the crusher 100 of the present invention, the cutter 1 has its left and right end surfaces 5 of the cutter plate 3 inclined inward (towards the center) CS, and this portion is designated as the inclined portion 7. That is, the end surface 5 of the cutter plate 3 in the left-hand view is inclined inward (towards the center) CS, and the end surface 5 of the cutter plate 3 in the right-hand view is also inclined inward. Both inclined portions 7 are inclined towards the inward CS side of the cutter plate.

[0064] By tilting the surface 5 from the end side of the cutter 1 to the inner CS side, the material to be broken, CM, which is trying to escape outwards during crushing, can be guided inwards towards the CS side. That is, the material to be broken, CM, is pressed towards the inner CS side of the cutter 1, and therefore cannot escape outwards.

[0065] exist Figure 1 The fixed cutting tool 11 shown Figure 3 In the movable cutter 12 shown, inclined portions 7 are provided at the lower left and right corners of the surface 5 of the cutter plate 3. Figure 1 , Figure 3 In this embodiment, below the surface 5 of the blade plate 3, a bottom receiving inclined surface 80 is provided throughout the left-right direction (LR). The upper end of the bottom receiving inclined surface 80 slopes downward at the left and right ends, and the inclined portion 7 is connected to the downwardly sloped bottom receiving inclined surface 80. That is, the inclined portion 7, obtained by tilting the surfaces 5 on both sides of the blade plate 3 in the left-right direction inward, is provided at the bottommost layer. The fixed blade 11 is provided between the bottommost blade portion 10 and the third blade portion 10. In addition, the movable blade 12 is also provided between the bottommost blade portion 10 and the third blade portion 10.

[0066] The angle of inclination of the inclined portion 7 is not particularly limited; any angle can be used as long as it achieves the effect of the invention. By moving the movable cutter 12 forward relative to the fixed cutter 11, the movable cutter 12 engages with the fixed cutter 11. However, the cutter portion 10 on the opposite side of the inclined portion 7 is a structure divided into half by a longitudinal section (a half-divided cutter). Therefore, if the angle of the inclined portion 7 becomes larger (deeper), the cutter portion of the structure divided into half by a longitudinal section that engages there will become longer.

[0067] Furthermore, it has a strip-shaped portion 7a extending vertically in the direction UD, connected to the outer end of the inclined portion 7. That is, by having a strip-shaped portion 7a along the outer edge of the inclined portion 7, the strength of the cutting tool 1 itself is increased. The height, width, vertical and horizontal angles, and the angle at which the inclined portion 7 connects to the strip-shaped portion 7a are not limited. For example, the height of the strip-shaped portion 7a can be set as a raised wall extending vertically in the direction UD from the inclined portion 7. The width of the strip-shaped portion 7a can be approximately the same as the width of the rectangular blade 26 of the mountain-shaped cutting portion 20, or it can be a different width. The angle of the strip-shaped portion 7a can be parallel to or not parallel to the surface 5 of the cutting plate 3 other than the inclined portion 7.

[0068] The cutting part 10 protruding from the surface 5 of the cutting plate 3 is either a mountain-shaped cutting part 20 or a notched frustum-shaped cutting part 50. However, the mountain-shaped cutting part 20 or the notched frustum-shaped cutting part 50 sometimes protrudes from the surface 5 of the cutting plate 3 in a state of being divided by a longitudinal section. Specifically, the mountain-shaped cutting part 20 or the notched frustum-shaped cutting part 50 protruding from both ends of the cutting plate 3 in the left-right direction LR protrusion is divided from the surface 5 in a state of being divided by a longitudinal section.

[0069] Furthermore, the end of the longitudinally divided mountain-shaped cutter portion 20 or the notched frustum-shaped cutter portion 50 located on the surface 5 of the cutter plate 3 in the left-right direction LR is approximately halfway down, and therefore it is preferable to manufacture it securely. As a result, the various parts constituting the mountain-shaped cutter portion 20 or the notched frustum-shaped cutter portion 50 are structurally larger, wider, and thicker than the mountain-shaped cutter portion 20 or the notched frustum-shaped cutter portion 50 that is not longitudinally divided.

[0070] As described above, the mountain-shaped cutter portion 20 or the notched frustum-shaped cutter portion 50 located at the ends of the surface 5 of the cutter plate 3 in the left-right direction LR is a structure divided into half by a longitudinal section. Inclined portions 7 are provided on both ends of the cutter plate 3 in the left-right direction LR. Therefore, the inclined portions 7 are adjacent to the mountain-shaped cutter portion 20 or the notched frustum-shaped cutter portion 50, which is divided into half by a longitudinal section.

[0071] like Figure 1 , Figure 3 As shown, in the case where the ribbed blade portion 60 is provided further protruding from the surface 5 of the blade plate 3, the portions on both ends surrounded by the mountain-shaped blade portion 20 and the ribbed blade portion 60, which are divided by the longitudinal section, become the inclined portion 7.

[0072] The material of the cutting tool 1, which consists of the blade plate 3 and the cutting part 10, can be any material as long as it can break the object CM to be broken. For example, special steels such as carbon steel (SC) for mechanical structures and alloy steel (SCM, etc.) for mechanical structures, as well as alloy castings based on ordinary cast steel FCD, can be used. In addition, hard materials with high wear resistance, wear-resistant cast steel, and high manganese cast steel can be used as examples.

[0073] When the tool 1 is made of high-manganese cast steel, it is high-manganese cast steel SCMnH11 (JISG5131) containing 11% to 14% manganese by mass. That is, it has a manganese content of 11% to 14% by mass. However, it is also possible to have more than 15% by mass, for example, more than 20% by mass.

[0074] The composition of high-manganese cast steel, as specified by JIS, is mainly Fe, with the following mass percentages: C: 0.70~1.35%, Si: 0.3~0.9%, Mn: 6.00~19.00%, P: less than 0.050%, S: less than 0.040%, and Cr: 1.5~3.00%. Preferably, the composition is: C: 1.12~1.14%, Si: 0.43~0.46%, Mn: 12.25~12.79%, P: 0.050%, S: 0.01%, and Cr: 2.17~2.30%.

[0075] Of the above-mentioned components, the presence of chromium (Cr) makes the tool itself stronger. However, considering ease of machining, high-manganese cast steel that is as chromium-free as possible is preferred. In addition to being completely chromium-free, a content of approximately 1% is also permissible.

[0076] An example of the structure of a crusher 100 equipped with the fixed cutter 11 and the movable cutter 12 of the present invention will be described.

[0077] The crusher 100 includes: a pair of main frames 110, 110 arranged side by side on the sides; a fixed cutter 11 arranged vertically between the main frames 110, 110; and a movable cutter 12 that moves back and forth relative to the fixed cutter 11. The crusher 100 is configured to be open at both the top and the bottom, with an upper opening UO for feeding the material to be crushed CM and a lower opening LO for discharging the crushed waste.

[0078] One side of each of the two main frames 110, 110 is fixed to each other via a fixing tool 11. Specifically, the fixing tool 11, which has a threaded hole with a threaded groove, is fixedly mounted on the front side F of the two main frames 110, 110 using fasteners such as bolts. The other side of each of the two main frames 110, 110 is fixed to each other via a rear frame 111. Specifically, the rear frame 111, which has a threaded hole with a threaded groove, is fixedly mounted on the rear side B of the two main frames 110, 110 using fasteners such as bolts. In this way, the fixing tool 11 and the rear frame 111 are fixedly mounted on the main frames 110, 110.

[0079] Alternatively, the fixed tool 11 can also be fixed via the fixed tool holder 120 (see reference). Figure 10 Specifically, a fixed tool holder 120 with threaded holes having threaded grooves is fixedly mounted on the front side F of the two main frames 110 and 110 using fasteners such as bolts, and a fixed tool 11 is fixedly mounted on the fixed tool holder 120 with threaded holes having threaded grooves using fasteners such as bolts.

[0080] The tool holder 120 has a vertical surface or an inclined surface, on which the tool 11 is fixed. Therefore, when the tool 11 is fixed to the tool holder 120 having a vertical surface, the tool 11 is fixed vertically (see reference). Figure 10 On the other hand, when the fixed tool 11 is fixed to the fixed tool holder 120 with an inclined surface, the fixed tool 11 is fixed at an angle (not shown). In addition, the fixed tool holder 120 can be a split type consisting of an upper fixed tool holder and a lower fixed tool holder, in addition to an integral fixed tool holder 120.

[0081] With the fixed cutter 11 set at an inclination relative to the two main frames 110, a larger V-shaped crushing space S formed between the fixed cutter 11 and the moving cutter 12 can be obtained, thus allowing for the input of a relatively large material to be crushed, CM.

[0082] Furthermore, when the fixed cutter 11 is arranged perpendicularly to the two main frames 110, 110, the V-shaped crushing space S formed between the fixed cutter 11 and the moving cutter 12 is sometimes narrower than when the fixed cutter 11 is tilted. However, when the moving cutter 12 reaches its forward limit position, the moving cutter 12 and the fixed cutter 11 are roughly horizontally opposite each other, and the crushing space S formed between the fixed cutter 11 and the moving cutter 12 becomes narrower, so the material to be crushed CM can be crushed more finely.

[0083] The movable tool 12 is supported by a fulcrum shaft 140 mounted between two main frames 110, 110. Specifically, it is supported by a semi-circular shaft support portion formed on the lower side of the movable tool 12. Furthermore, a fulcrum shaft cap 142 is placed on the fulcrum shaft 140 and fixed with bolts or other fasteners (see reference). Figure 11 ).

[0084] Furthermore, the fulcrum shaft 140 is supported by bearings that engage with large frame holes 145 in the two main frames 110, 110. Support blocks 146 (bearing position adjustment blocks) engage with the bearings in the frame holes 145. That is, by inserting and removing the support blocks 146 that engage with the frame holes 145, the number of left and right support blocks 146 within the frame holes 145 can be adjusted, thereby changing the position of the fulcrum shaft 140. Therefore, the size of the crushing space S formed between the fixed cutter 11 and the moving cutter 12, and the size of the lower open portion LO, can be adjusted.

[0085] In addition, although not shown, other structures for changing the position of the fulcrum shaft 140 can be described, such as those using bearings, metal parts embedded in the bearings, eccentric bushings, and stoppers for fixing the eccentric bushings to the bearings. According to this structure, by removing the stoppers such as bolts, the eccentric bushings can be rotated and moved to change the position of the fulcrum shaft. After changing the eccentric bushings, the eccentric bushings are fixed with the stoppers such as bolts. In this way, the position of the fulcrum shaft can be changed and fixed.

[0086] The working cylinder 150, which moves the movable cutter 12 back and forth, is preferably mounted to the crusher 100 via a trunnion structure, but it can also be mounted by other methods. An example of a trunnion structure will be described.

[0087] The fixing of the working cylinder 150 to the crusher 100 (rear frame 111) will be described. An elliptical through-hole, larger than the outer diameter of the working cylinder 150, is provided in the rear frame 111. The working cylinder 150 is inserted into this through-hole and pivotally mounted, rotatably (moving up and down) via the shaft of a trunnion body 153 protruding from both sides. Specifically, a trunnion body 153 is fixedly inserted into and fixedly mounted on the front end side of the working cylinder 150, and trunnion bearings 155 are fixedly mounted on both sides of the rear frame 111 (the through-hole). The working cylinder 150 is pivotally mounted to the trunnion bearings 155, moving up and down freely via the shaft of the trunnion body 153. With this configuration, the working cylinder 150 can pivot relative to the rear frame 111, and can move up and down (swing) within the through-hole. Alternatively, when installing the working cylinder 150 into the crusher 100, other components such as trunnion seats with through-holes can also be inserted.

[0088] The fixing arrangement of the piston rod 151 to the moving cutter 12 will be described. A double-peaked connecting fork 162 is fixedly mounted on the back of the moving cutter 12, and a single-peaked connecting fork 161 is fixedly mounted on the front end of the piston rod 151. The single-peaked connecting fork 161 is pivotally mounted on the double-peaked connecting fork 162 via an axis, allowing it to rotate freely (move up and down). With this structure, the moving cutter 12 can pivot (swing up and down) relative to the piston rod 151 about the axis.

[0089] The main components are a fixed cutter 11 and a movable cutter 12. The fixed cutter 11 is fixedly supported vertically or inclined relative to the crusher 100. The movable cutter 12 is supported by a fulcrum shaft 140 erected between the two main frames 110 and 110. At the rearward limit position, it is inclined relative to the two main frames 110 and 110. At the forward limit position, it is approximately perpendicular to the two main frames 110 and 110. It moves back and forth with the piston rod 151 of the working cylinder 150 located in the rear frame 111 as a fulcrum, and supplies the crushed material CM to the V-shaped crushing space S formed between the fixed cutter 11 and the movable cutter 12. The movable cutter 12 moves forward relative to the fixed cutter 11, thereby crushing the crushed material CM.

[0090] Alternatively, one or more gaskets 115 can be easily installed and removed using bolts or other stoppers on the inner side of the two main frames 110, 110. Alternatively, the bolts or other stoppers can be machined into a roughly coplanar structure using a grinding unit.

[0091] The liner 115 is made of a high-hardness material with wear resistance, such as a superhard alloy. By placing the liner 115 on the two main frames 110, it can prevent the impact of the broken object CM on the two main frames 110, thus improving the durability and extending the service life of the two main frames 110, 110. In addition, it can prevent the two main frames 110, 110 from rubbing against the cutting tool 1. Furthermore, the hardness of the liner 115 is, for example, around HRC50 to HRC60.

[0092] The crusher 100 preferably includes a pressure-reducing circuit. This circuit suppresses excessive pressure on the moving cutter 12. Especially when crushing non-ferrous metals such as aluminum, the pressure-reducing circuit eliminates pressure in the working cylinder 150, thereby reducing the reaction force of the moving cutter and mitigating vibration during crushing.

[0093] Regarding the movable cutter 12, a structure is described in which the front end of the piston rod 151 is fixed (pivot-mounted) to the back of the movable cutter 12 via the double-peak connecting fork 162 and the single-peak connecting fork 161, but it can also be fixed via the movable cutter bracket (not shown).

[0094] A semi-circular shaft support is formed on the lower side of the movable tool holder, which supports the fulcrum shaft 140. A fulcrum shaft cap 142 covers the fulcrum shaft 140 and is fixed with bolts or other fasteners. A double-peaked connecting fork is fixedly installed on the back of the movable tool holder, and a single-peaked connecting fork is fixedly installed at the front end of the piston rod 151. The single-peaked connecting fork is freely connected to the double-peaked connecting fork via the shaft (moving up and down). The movable tool 12 is fixedly mounted on the movable tool holder, which has a threaded hole with threaded grooves, using bolts or other fasteners. With this structure, the movable tool holder and the movable tool 12 can pivot (swing up and down) around the shaft as a fulcrum.

[0095] Regarding the mountain-shaped blade 20 of the first embodiment, it is configured such that when the moving blade 12 advances and reaches its forward limit position, a gap (20 mm or more, about 5 mm) is generated between the blade portion 10 of the fixed blade 11 and the blade portion 10 of the moving blade 12. Therefore, the blade portion 10 of the fixed blade 11 and the blade portion 10 of the moving blade 12 are not completely engaged. For example, when the material CM to be broken is ferrous, since "breaking" is possible, the mountain-shaped blade 20 of the first embodiment, which forms a gap between the two blade portions 10, 10, is preferable. Alternatively, it may be a structure in which no gap is generated between the blade portion 10 of the fixed blade 11 and the blade portion 10 of the moving blade 12 when the moving blade 12 advances and reaches its forward limit position.

[0096] Regarding the mountain-shaped blade 20 of the second embodiment, when the moving blade 12 reaches its forward limit position, there are cases where the two blades 10, 10 are engaged or not engaged. When the blades 10 of the fixed blade 11 and the blades 10 of the moving blade 12 are formed with the same spacing, when the moving blade 12 reaches its forward limit position, the blades 10 of the fixed blade 11 and the blades 10 of the moving blade 12 engage. Therefore, the blades 10 of the fixed blade 11 and the blades 10 of the moving blade 12 collide with each other (the front end of the blade 10 is pressed against the surface 5 of the blade plate 3, etc.) to "cut". For example, in the case of materials that are difficult to "break" such as CM (pure aluminum, magnesium alloy), plastic compounds, zinc alloys, etc., the engaged blades 10 are preferred.

[0097] The rectangular blade 26, the foot of the mountain 22, the edge portion of the end of the rectangular blade 26 with a flat top 30, the foot of the mountain 22, and the tip blade 28 with a pointed top 32 can break or cut the broken object CM.

[0098] The present invention has been described above based on various embodiments, but the present invention is not limited to the above embodiments. Modifications can be made without departing from the spirit of the present invention, and the techniques described in the embodiments or other known and familiar techniques can be combined. In addition, in the accompanying drawings, some parts have been omitted for ease of understanding of the invention.

[0099] Explanation of reference numerals in the attached figures

[0100] 1: Knives

[0101] 3: Blade

[0102] 5: Surface

[0103] 7: Inclined section

[0104] 7a: Band-like portion

[0105] 10: Knife section

[0106] 11: Fixing the cutting tool

[0107] 12: Moving the cutting tool

[0108] 20: Yamagata sword part

[0109] 22: Foot of the mountain

[0110] 23: Bevel

[0111] 26: Rectangular knife

[0112] 28: Sharp-edged knife

[0113] 30: Flat top

[0114] 32: Tip Top

[0115] 34: Inclined recess

[0116] 40: Cross-shaped blade section

[0117] 50: Notched frustum conical cutter head

[0118] 53: Bevel

[0119] 56: Front end

[0120] 57: Notched Surface

[0121] 60: Rib-shaped blade

[0122] 63: Inclined surface

[0123] 66: Rectangular knife

[0124] 67: Pointed knife

[0125] 71: Vertical Blade

[0126] 72: Horizontal Blade

[0127] 80: Bottom support slope

[0128] 100: Crusher

[0129] 110: Main Framework

[0130] 111: Post-frame

[0131] 115: Padding

[0132] 120: Fixed tool holder

[0133] 140: Pivot Axis

[0134] 142: Pivot cap

[0135] 145: Frame hole

[0136] 146: Support block

[0137] 150: Working cylinder

[0138] 151: Piston rod

[0139] 153: Trunnion body

[0140] 155: Trunnion bearing

[0141] 161: Single-peak connecting fork

[0142] 162: Double-peak connecting fork

[0143] B: Rear side

[0144] F: Front side

[0145] S: Broken Space

[0146] CM: Broken material

[0147] CS: medial

[0148] UD: Up and down direction

[0149] LR: Left and right directions

[0150] MA: Chimera region

[0151] UO: Open section above

[0152] LO: Open section below.

Claims

1. A blade for a crusher, comprising a plurality of blade sections protruding from the surface of a blade plate, characterized in that... The cutting part can be configured as a mountain-shaped cutting part or a notched frustum-shaped cutting part. The mountain-shaped cutter sections or the notched frustum-shaped cutter sections are arranged in an alternating pattern. The mountain-shaped or notched frustum-shaped blade protruding from the surfaces of both ends of the blade in the left-right direction is configured as a structure divided into half by a longitudinal section. An inclined portion is provided at the bottom layer, which is formed by tilting the surfaces of both ends of the blade in the left and right directions inward, and a strip-shaped portion in the up and down directions is connected to the outer end of the inclined portion.

2. The cutting tool for a crusher according to claim 1, characterized in that, The surface of the blade also has multiple rib-shaped blade portions and / or cross-shaped blade portions. The ribbed blade and / or the cross-shaped blade are connected to the mountain-shaped blade and / or the notched frustum-shaped blade.

3. The cutting tool for a crusher according to claim 1 or 2, characterized in that, The cutting tool is made of high-manganese cast steel containing 11% to 14% manganese by mass.

4. A crusher comprising: a pair of left and right main frames, fixed cutters disposed between the main frames, and movable cutters that move back and forth relative to the fixed cutters. The crusher has an upper open section for feeding the material to be crushed and a lower open section for discharging the crushed material. The crusher is characterized in that... The fixed tool and / or the movable tool are the tools described in claim 1 or 2.

5. A crusher comprising: a pair of left and right main frames, fixed cutters disposed between the main frames, and movable cutters that move back and forth relative to the fixed cutters. The crusher has an upper open section for feeding the material to be crushed and a lower open section for discharging the crushed material. The crusher is characterized in that... The fixed tool and / or the movable tool are the tools described in claim 3.

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