CN219024488U - Hammer for crusher, hammer for pulverizer and crusher - Google Patents

Abstract

The utility model discloses a hammer head for a crusher, a crusher or a hammer head for a pulverizer and a crusher. The hammer head for the crusher comprises an assembly part and a material moving part, wherein an assembly shaft hole is formed in the assembly part, one end, away from the assembly part, of the material moving part is provided with a material moving working surface which is used for moving the material hammer head to push the material by utilizing the contact of an inclined plane and the material in the rotation process of the assembly shaft hole, the material moving working surface is arranged with the assembly shaft hole in a space included angle manner, a plurality of embedded holes are uniformly distributed on the material moving working surface, the embedded holes are formed in the vertical direction of the material moving working surface, wear-resistant alloy pins are arranged in the embedded holes in a one-to-one correspondence manner, and the wear-resistant alloy pins are exposed out of the material moving working surface towards one end of the material moving working surface. The whole simple structure can effectively reduce cost, improves the structure utilization ratio, and makes the material that moves the material efficiency and improves, and the material kind of moving the material increases, and the suitability is stronger, moves the life extension of material tup.

Description

Hammer for crusher, hammer for pulverizer and crusher

Technical Field

The utility model relates to the technical field of crushing or grinding equipment, in particular to a material moving hammer head for a crusher. The utility model also relates to a hammer head for a crusher or a pulverizer. In addition, the utility model also relates to a crusher comprising the material moving hammer head for the crusher and the hammer head for the crusher.

Background

The material is fed from one end of the column crusher or other crushers, crushed continuously in the process of gradually moving to the other end, a small number of stone blocks which are difficult to crush, impurity iron and a small amount of large materials which are mixed are discharged from the tail end, the discharged materials are subjected to impurity iron removal and the like, then the materials are fed into a pneumatic separator for separation, qualified particles enter qualified products, and particles larger than the required particles return to the column crusher for re-crushing. On one hand, the grinding roller is adopted to grind and strike materials, and on the other hand, the efficient grinding principle of pushing and screening while crushing and pushing is implemented. In addition to the medium for powerful crushing, there is one set of material pushing device. The crushed particles are extruded out of the column crusher from small sieve holes allowed by the process to be qualified products, and the unqualified particles are rolled and beaten by a roller while being pushed forward by the device until the crushed particles are extruded out of the machine to be qualified products after being crushed for ten times or tens of times.

Column crusher and other crushers all adopt hammerheads to act on materials, so that grinding or crushing is realized respectively. Most of the existing hammerheads adopt a uniform matrix structure, and if the existing hammerheads adopt low-alloy hammerheads, the existing hammerheads are easy to wear and crack, have the problems of low working efficiency, poor crushing or grinding effect, short service life and the like; if the wear-resistant alloy hammer is adopted, the hardness is high, the service life is prolonged, but the cost is high, the hammer actually acts only as an acting surface, unnecessary waste is caused, besides the hardness of the hammer is high, the brittleness is also high, the fracture possibility is also increased, and the whole service life of the equipment is reduced.

Disclosure of Invention

The utility model provides a hammer head for a crusher, a crusher or a hammer head for a pulverizer and the crusher, which are used for solving the technical problems that the utilization rate, the strength, the service life, the cost and the like of the hammer head cannot meet the requirements of the pulverizer or the crusher by adopting a single matrix structure in the prior art.

According to one aspect of the utility model, a hammer head for a crusher is provided, the hammer head comprises an assembly part and a material moving part, an assembly shaft hole is formed in the assembly part, a material moving working surface for pushing materials by utilizing the contact of an inclined plane and the materials in the rotation process of the material moving hammer head along the assembly shaft hole is arranged at one end of the material moving part far away from the assembly part, the material moving working surface and the assembly shaft hole are distributed at a space included angle, a plurality of embedded holes are uniformly distributed on the material moving working surface, the embedded holes are formed in the vertical direction of the material moving working surface, wear-resistant alloy pins are arranged in the embedded holes in a one-to-one correspondence manner, and the wear-resistant alloy pins are exposed out of the material moving working surface towards one end of the material moving working surface. The wall thickness of the embedded hole is 8 mm-15 mm.

Further, the wear-resistant alloy pin is in a block shape, a strip shape or a ring shape; or the section of the wear-resistant alloy pin is circular, elliptical or polygonal; or the surface of the wear-resistant alloy pin is flat or curved.

Further, the minimum wall thickness of the insertion hole is 30mm or more.

Further, the matrix structures of the assembling part and the material transferring part are metal matrix structures; the wear-resistant alloy pin adopts an alloy rigid matrix structure.

Further, the space included angle between the material moving working surface and the assembly shaft hole is 30-75 degrees.

According to another aspect of the utility model, there is provided a hammer for a crusher or a pulverizer, comprising an assembly part and a working part, wherein the assembly part is provided with an assembly shaft hole, the end surface of the working part far away from the assembly part is provided with a friction working surface for contacting with materials to crush or pulverize the materials, the friction working surface is uniformly provided with a plurality of embedded holes, the embedded holes are distributed at an included angle with the friction working surface, wear-resistant alloy pins are arranged in the embedded holes, the wear-resistant alloy pins are distributed in one-to-one correspondence with the embedded holes, one end of the wear-resistant alloy pins facing the friction working surface is exposed out of the friction working surface, and the wall thickness of the embedded holes is 8-15 mm.

Further, the included angle between the hole axis of the embedded hole and the friction working face is 30-85 degrees.

Further, the inclination direction of the exposed end of the wear-resistant alloy pin is matched with the rotation direction of the hammer head.

Further, the exposed end of the wear-resistant alloy pin is inclined towards the outer edge direction of the friction working surface; or the exposed end of the wear-resistant alloy pin is inclined towards the center of the friction working surface; or the inclined directions of the exposed ends of the wear-resistant alloy pins are the same; or the exposed ends of the wear resistant alloy pins may be angled differently.

Further, the base structures of the assembly part and the operation part are both metal base structures; the wear-resistant alloy pin adopts an alloy rigid matrix structure.

Further, the wear-resistant alloy pin is in a block shape, a strip shape or a ring shape; or the section of the wear-resistant alloy pin is circular, elliptical or polygonal; or the surface of the wear-resistant alloy pin is flat or curved.

According to another aspect of the present utility model, there is also provided a crusher comprising the above-mentioned hammer head for a crusher, and/or comprising the above-mentioned hammer head for a pulverizer.

The utility model has the following beneficial effects:

the utility model relates to a hammer head for a crusher, which comprises an assembling part and a material moving part, wherein the assembling part is uniformly assembled on a driving shaft of the crusher through an assembling shaft hole and rotates along with the driving shaft, a material moving working surface of the assembling part is obliquely arranged along the circumferential direction taking the assembling shaft hole as a center, an extension surface of the material moving working surface is intersected with the assembling shaft hole to form a space included angle, and one end of the material moving working surface, which is firstly contacted with a material, is inclined towards the direction deviating from the material so as to form guiding and pushing functions on the material, thereby realizing material moving on the material; the assembly part drives the material moving part to rotate in the rotating process, so that a material moving working surface of the material moving part contacts with the material and pushes the material to move forward along the direction of the driving shaft by utilizing the inclined surface characteristic of the material moving working surface. The wear-resistant alloy pins are embedded into the matrix of the material moving part from the material moving working surface of the material moving part, and are uniformly distributed on the material moving working surface of the material moving part and are exposed from the material moving working surface, so that a composite material moving hammer head is formed; when the material moving hammer head acts on the material to push the material to move forward, the material moving working surface of the material moving part contacts with the material, and then the hammer material moving working surface and the exposed surface of the wear-resistant alloy pin act on the material together, and the material is contacted and pushed by utilizing the high strength and wear resistance of the wear-resistant alloy pin, so that the reaction force and the wear rate of the material to the material moving part working surface beyond the exposed surface of the wear-resistant alloy pin can be reduced, and the service life of the material moving hammer head is prolonged; in addition, the material moving hammer head pushes materials by means of the wear-resistant alloy pins, and the material moving hammer head does not need to adopt a high-strength alloy structure, so that an alloy body structure which is cheaper than the wear-resistant alloy pins can be adopted, and the cost of the hammer head is further reduced; preferably, the base body structure of the material moving hammer head is an alloy body structure which is more elastic than the wear-resistant alloy pin, so that the material moving hammer head plays a main material moving role by utilizing the high strength and high wear resistance of the wear-resistant alloy pin when moving materials, and the elastic buffer in the material moving process is formed by utilizing the base body elasticity of the material moving hammer head, so that the rigid damage to other parts (particularly a driving shaft) in the equipment is avoided, and the service life of the whole equipment is further prolonged. The connection mode of the wear-resistant alloy pin embedded into the material moving working face of the material moving hammer head can be reasonably selected according to the application environment and the application purpose of the material moving hammer head so as to meet the actual use requirement. Because of the structural specificity of the material moving hammer head, the material moving working surface is an inclined surface, so that the thickness of the hole wall of the embedded hole is difficult to ensure, the minimum wall thickness of the embedded hole is less than 8mm, and the embedded hole of the wear-resistant alloy pin is easy to crack and break in the material moving stress process, so that the wear-resistant alloy pin is separated, and even the whole material moving hammer head structure is unstable and damaged; therefore, the minimum wall thickness of the embedded hole is set to be more than 8mm, so that the wall of the embedded hole can meet the strength requirement, and the cracking and the damage of the material moving hammer head in the material moving stress process are avoided. The whole simple structure can effectively reduce cost, improves the structure utilization ratio, and makes the material that moves the material efficiency and improves, and the material kind of moving the material increases, and the suitability is stronger, moves the life extension of material tup.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a single-bevel crusher hammer head according to a preferred embodiment of the present utility model;

FIG. 2 is a cross-sectional view a-a of FIG. 1;

FIG. 3 is a schematic structural view of a double-inclined-surface hammer head for a crusher according to a preferred embodiment of the present utility model;

FIG. 4 is a cross-sectional view b-b of FIG. 3;

fig. 5 is a schematic structural view of a hammer head for roll grinding in accordance with a preferred embodiment of the present utility model.

Legend description:

1. an assembling portion; 101. assembling a shaft hole; 2. a material moving part; 201. a material moving working surface; 3. an insertion hole; 4. wear-resistant alloy pins; 5. a working section; 501. friction against the working surface.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

FIG. 1 is a schematic view of a single-bevel crusher hammer head according to a preferred embodiment of the present utility model; FIG. 2 is a cross-sectional view a-a of FIG. 1; FIG. 3 is a schematic structural view of a double-inclined-surface hammer head for a crusher according to a preferred embodiment of the present utility model; FIG. 4 is a cross-sectional view b-b of FIG. 3; fig. 5 is a schematic structural view of a hammer head for roll grinding in accordance with a preferred embodiment of the present utility model.

As shown in fig. 1 and 2, the hammer head for a crusher of this embodiment includes an assembly portion 1 and a material moving portion 2, wherein an assembly shaft hole 101 is provided on the assembly portion 1, one end of the material moving portion 2 away from the assembly portion 1 is provided with a material moving working surface 201 for pushing material by contacting with the material through an inclined plane in the rotation process of the material moving hammer head along the assembly shaft hole 101, the material moving working surface 201 and the assembly shaft hole 101 are arranged in a space included angle, a plurality of embedded holes 3 are uniformly distributed on the material moving working surface 201, the embedded holes 3 are formed along the vertical direction of the material moving working surface 201, wear-resistant alloy pins 4 are provided in the embedded holes 3, the wear-resistant alloy pins 4 are arranged in one-to-one correspondence with the embedded holes 3, and the wear-resistant alloy pins 4 are exposed out of the material moving working surface 201 towards one end of the material moving working surface 201. The utility model relates to a hammer head for a crusher, which comprises an assembling part 1 and a material moving part 2, wherein the assembling part 1 is uniformly assembled on a driving shaft of the crusher through an assembling shaft hole 101 and rotates along with the driving shaft, a material moving working surface 201 of the assembling part 1 is obliquely arranged along the circumferential direction taking the assembling shaft hole 101 as the center, an extension surface of the material moving working surface 201 is intersected with the assembling shaft hole 101 to form a space included angle, and one end of the material moving working surface 201, which is firstly contacted with a material, is inclined towards the direction deviating from the material so as to form guiding and pushing functions on the material, thereby realizing material moving on the material; the assembly part 1 drives the material moving part 2 to rotate in the rotating process, so that a material moving working surface 201 of the material moving part 2 is contacted with the material, and the material is pushed to move forward along the driving shaft direction by utilizing the inclined surface characteristic of the material moving working surface 201. The wear-resistant alloy pins 4 are embedded into the matrix of the material moving part 2 from the material moving working surface 201 of the material moving part 2, and the wear-resistant alloy pins 4 are uniformly distributed on the material moving working surface 201 of the material moving part 2 and are exposed from the material moving working surface 201, so that a composite material moving hammer is formed; when the material moving hammer head acts on the material to push the material to move forward, the material moving working surface 201 of the material moving part 2 is contacted with the material, and then the material moving working surface 201 and the exposed surface of the wear-resistant alloy pin 4 act on the material together through the hammer, and the material is contacted and pushed by utilizing the high strength and wear resistance of the wear-resistant alloy pin 4, so that the reaction force and wear rate of the material to the working surface of the material moving part 2 beyond the exposed surface of the wear-resistant alloy pin 4 can be reduced, and the service life of the material moving hammer head is prolonged; in addition, as the material moving hammer head pushes the material by means of the wear-resistant alloy pin 4, the material moving hammer head does not need to adopt a high-strength alloy structure, and can adopt an alloy body structure which is cheaper than the wear-resistant alloy pin 4, so that the cost of the hammer head is reduced; preferably, the base structure of the material moving hammer head is an alloy body structure which is more elastic relative to the wear-resistant alloy pin 4, so that the material moving hammer head plays a main material moving role by utilizing the high strength and high wear resistance of the wear-resistant alloy pin 4 when moving materials, and the elastic buffer in the material moving process is formed by utilizing the base elasticity of the material moving hammer head, so that the rigid damage to other parts (particularly a driving shaft) in the equipment is avoided, and the service life of the whole equipment is further prolonged. The connection mode of the wear-resistant alloy pin 4 embedded into the material moving working surface 201 of the material moving hammer head can be reasonably selected according to the application environment and the application purpose of the material moving hammer head so as to meet the actual use requirement. Because of the structural specificity of the material moving hammer head, the material moving working surface 201 is an inclined surface, so that the thickness of the hole wall of the embedded hole 3 is difficult to ensure, the minimum wall thickness of the embedded hole 3 is less than 8mm, and the embedded hole 3 of the wear-resistant alloy pin 4 is easy to crack and break in the material moving stress process, so that the wear-resistant alloy pin 4 is separated, and even the whole material moving hammer head structure is unstable and damaged; therefore, the minimum wall thickness of the embedded hole 3 is set to be more than 8mm, so that the wall of the embedded hole 3 can meet the strength requirement, and the cracking and the damage of the material moving hammer head in the material moving stress process are avoided. The whole simple structure can effectively reduce cost, improves the structure utilization ratio, and makes the material that moves the material efficiency and improves, and the material kind of moving the material increases, and the suitability is stronger, moves the life extension of material tup. Alternatively, two groups of material moving working surfaces 201 are arranged on the material moving part 2, and the two groups of material moving working surfaces 201 are arranged side by side, as shown in fig. 3 and 4.

Optionally, the connection mode of the wear-resistant alloy pin 4 embedded into the material moving working surface 201 of the material moving part 2 adopts at least one of bonding connection, non-return threaded connection, interference fit connection, metallurgical bonding connection and post-pouring connection. Optionally, the connection mode of the wear-resistant alloy pin 4 embedded in the material moving working surface 201 of the material moving part 2 specifically adopts: the bonding connection mode is that the bonding surface of the wear-resistant alloy pin 4 and/or the corresponding embedded hole 3 are smeared with adhesive, then the wear-resistant alloy pin 4 is arranged in the embedded hole 3, and the adopted adhesive can be common metal repairing agent or metal adhesive; the hammer head is simple to manufacture, is convenient for assembly line manufacture, and can also be used for repairing, replacing and the like of the wear-resistant alloy pin 4 properly. The non-return screw connection is realized by correspondingly processing screw threads in the combination surface of the wear-resistant alloy pin 4 and the corresponding embedded hole 3 and arranging a non-return groove on the screw threads, and after the wear-resistant alloy pin 4 is screwed into the embedded hole 3, the screw threads are deformed and clamped in the non-return groove due to tightening, so that the connection between the two is realized; the non-return mode can also adopt a non-return ring, a non-return gasket and the like; in addition, the non-return groove can be omitted. The material moving part 2 is heated, then the wear-resistant alloy pins 4 are embedded into the corresponding embedded holes 3, and the material moving part is connected with each other after being cooled; the design size of the wear-resistant alloy pin 4 is larger than the size of the embedded hole 3, so that the wear-resistant alloy pin 4 is extruded into the embedded hole 3 by external force application, and the wear-resistant alloy pin 4 is embedded into the embedded hole 3. The metallurgical bonding connection is realized by carrying out hot melting on the bonding surface of the wear-resistant alloy pin 4 and/or the inner wall surface of the embedded hole 3, then installing the wear-resistant alloy pin 4 into the embedded hole 3, and realizing the connection after cooling; or metallurgically bonding, when the wear-resistant alloy pin 4 is installed in the corresponding embedded hole 3, filling solder between the wear-resistant alloy pin 4 and the embedded hole 3, then realizing metallurgical bonding between the wear-resistant alloy pin 4 and the embedded hole 3 through high temperature, and then obtaining the material moving hammer after cooling. Pouring connection, namely pouring a high-strength alloy liquid material in a molten state into the corresponding embedded holes 3, cooling to obtain wear-resistant alloy pins 4 embedded into the embedded holes 3, and further obtaining the embedded holes 3; or the wear-resistant alloy pin 4 is fixed in a pouring die of the material moving hammer, then the material moving hammer is poured in the pouring die, the material moving hammer is obtained after cooling, or an intermediate of the material moving hammer is obtained, and then the material moving hammer is obtained after integral processing.

In the embodiment, the wear-resistant alloy pin 4 is in a block shape, a strip shape or a ring shape; or the section of the wear-resistant alloy pin 4 is circular, elliptical or polygonal; or the surface of the wear-resistant alloy pin 4 is flat or curved. The appearance, the section shape and the surface shape of the wear-resistant alloy pin 4 can be adaptively matched according to the application scene, the material type and the specific treatment requirement of the hammer head for the crusher or the pulverizer. Alternatively, the wear resistant alloy pin 4 may take other shapes, or other cross-sectional shapes (cross-sectional shapes), or other surface shapes.

In this embodiment, the minimum wall thickness of the insertion hole 3 is greater than or equal to 30mm, so that the wall strength of the insertion hole 3 can be ensured, and even if the matrix structure of the material moving part 2 adopts a relatively low-cost alloy metal structure, the problems of cracking, breakage and the like are not easy to occur in the material moving stress process, so that the manufacturing cost of the product is reduced on the basis of ensuring the quality of the material moving hammer head.

As shown in fig. 1, 2, 3 and 4, in this embodiment, the base structures of the assembly part 1 and the material transferring part 2 are low-strength alloy elastic base structures; the wear-resistant alloy pin 4 adopts a high-strength alloy rigid matrix structure. The low-strength alloy elastic matrix structure and the high-strength alloy rigid matrix structure are a group of structure structures with opposite performances, namely: the assembling part 1 and the material moving part 2 have low strength, poor wear resistance, high elasticity and low rigidity relative to the wear-resistant alloy pin 4; in contrast, the wear-resistant alloy pin 4 has high strength, high rigidity, and high wear resistance relative to the fitting portion 1 and the stock removing portion 2. The structure of the assembly part 1 and the material moving part 2 adopts a low-strength alloy elastic matrix structure with relatively low cost as a matrix structure of the whole hammer head, and brings a certain elastic buffer effect, the structure of the wear-resistant alloy pin 4 adopts a high-strength alloy rigid matrix structure with relatively high cost as a main working part of the whole movable hammer head, and is used for playing a main material moving function, and the assembly part 1 and the material moving part 2 are organically combined with the wear-resistant alloy pin 4 to produce a synergistic effect, so that the working efficiency of the material moving hammer head and the material moving effect are improved, each structural part moving and stressed in the equipment can be effectively protected in the material moving process, the service life of the whole equipment is further prolonged, and the manufacturing cost and the use and maintenance cost can be effectively reduced.

As shown in fig. 1, 2, 3 and 4, in this embodiment, the space included angle between the material moving working surface 201 and the assembly shaft hole 101 is 30 ° -75 °, and in the process of rotating the material moving hammer driven by the driving shaft, the contact surface between the same space area and the material is reduced along with the increase of the space included angle, so that the material pushing speed is reduced, and the material pushing device is suitable for the working conditions of relatively smaller material particle size and/or long material retention time; along with the reduction of the space included angle, the contact surface between the same space area and the material is increased, the material pushing speed is increased, and the device is suitable for the working conditions of relatively larger particle size of the material and/or short retention time required by the material. When the space included angle between the material moving working surface 201 and the assembly shaft hole 101 is smaller than 30 degrees, the size of the material moving hammer head along the axial direction of the driving shaft is increased, and then the occupied space of the single structure of the material moving hammer head is large, the material moving efficiency is reduced, and meanwhile, the occupied space of the whole equipment is increased. When the space included angle between the material moving working surface 201 and the assembly shaft hole 101 is larger than 75 degrees, the pushing speed of the material is too slow, so that the material is located at the same position for a long time and is in friction contact with the material moving working surface 201, the problems of increased equipment energy consumption, clamping of a driving mechanism, increased abrasion of the material moving working surface 201 and the like are easily caused, and further the cost is increased.

As shown in fig. 5, the hammer head for a crusher or a pulverizer of this embodiment comprises an assembly part 1 and an operation part 5, wherein an assembly shaft hole 101 is formed in the assembly part 1, the end surface, far away from the assembly part 1, of the operation part 5 is provided with a friction working surface 501 for being in contact with materials to crush or grind the materials, a plurality of embedded holes 3 are uniformly distributed on the friction working surface 501, the embedded holes 3 are distributed at an included angle with the friction working surface 501, wear-resistant alloy pins 4 are arranged in the embedded holes 3, the wear-resistant alloy pins 4 are distributed in one-to-one correspondence with the embedded holes 3, the friction working surface 501 is exposed towards one end of the friction working surface 501 by the wear-resistant alloy pins 4, and the minimum wall thickness of the embedded holes 3 is greater than 8mm. The hammer head for the crusher or the pulverizer of the embodiment comprises an assembling part 1 and a working part 5, wherein the assembling part 1 is uniformly assembled on a driving shaft of the crusher or the pulverizer through an assembling shaft hole 101 and rotates along with the driving shaft, and a friction working surface 501 of the assembling part 1 is arranged at the end part, far away from the assembling part 1, of the working part 5; the assembly part 1 drives the operation part 5 to rotate in the rotating process, so that the friction working surface 501 of the operation part 5 contacts with the material and rubs and rolls the material, and the material is crushed or ground. The wear-resistant alloy pins 4 are embedded into the matrix of the working part 5 from the friction working surface 501 of the working part 5, and the wear-resistant alloy pins 4 are uniformly distributed on the friction working surface 501 of the working part 5 and are exposed from the friction working surface 501, so that a composite hammer is formed; when the hammer head acts on the material to crush or grind the material, the friction working surface 501 of the working part 5 is contacted with the material, so that the hammer friction working surface 501 and the exposed surface of the wear-resistant alloy pin 4 act on the material together, the material is crushed by contact and friction by utilizing the high strength and wear resistance of the wear-resistant alloy pin 4, the crushing or grinding efficiency can be improved, the reaction force and the wear rate of the material to the working surface of the working part 5 except the exposed surface of the wear-resistant alloy pin 4 can be reduced, and the service life of the whole hammer head can be prolonged; in addition, as the hammer head breaks or grinds materials by means of the wear-resistant alloy pins 4, the hammer head does not need to adopt a high-strength alloy structure, and can adopt an alloy body structure which is cheaper than the wear-resistant alloy pins 4, so that the cost of the hammer head is reduced; preferably, the matrix structure of the hammer head is an alloy body structure which is more elastic relative to the wear-resistant alloy pin 4, so that when the hammer head is used for crushing or grinding, the high strength and the high wear resistance of the wear-resistant alloy pin 4 are utilized to play a main role in crushing or grinding materials, the matrix elasticity of the hammer head is utilized to form elastic buffering in the crushing or grinding process, other parts (particularly a driving shaft) in the equipment are prevented from being rigidly damaged, and the service life of the whole equipment is further prolonged. The connection mode of the friction working surface 501 of the hammer head embedded by the wear-resistant alloy pin 4 can be reasonably selected according to the application environment and the application purpose of the hammer head so as to meet the actual use requirement. Due to the structural specificity of the hammer head, the specificity of the use environment and the like, the wear-resistant alloy pin 4 needs to be obliquely arranged in the embedded hole 3, so that the thickness of the wall of the embedded hole 3 is difficult to ensure, the minimum wall thickness of the embedded hole 3 is smaller than 8mm, the embedded hole 3 of the wear-resistant alloy pin 4 is easy to crack and break in the process of crushing or grinding stress, the wear-resistant alloy pin 4 is further separated, and even the whole hammer head structure is unstable and damaged; therefore, the minimum wall thickness of the embedded hole 3 is set to be more than 8mm, so that the wall of the embedded hole 3 can meet the strength requirement, and the cracking and the damage of the hammer head in the crushing or grinding stress process are avoided. The whole structure is simple, the cost can be effectively reduced, the utilization rate of the structure is improved, the crushing or grinding efficiency is improved, the variety of crushed or ground materials is increased, the applicability is stronger, and the service life of the hammer head is prolonged.

Optionally, the connection mode of the friction working face 501 embedded in the working part 5 by the wear-resistant alloy pin 4 adopts at least one of bonding connection, non-return screw connection, interference fit connection, metallurgical bonding connection and post pouring connection. Alternatively, the connection manner in which the wear-resistant alloy pin 4 is embedded in the friction working face 501 of the working portion 5 specifically employs: the bonding connection mode is that the bonding surface of the wear-resistant alloy pin 4 and/or the corresponding embedded hole 3 are smeared with adhesive, then the wear-resistant alloy pin 4 is arranged in the embedded hole 3, and the adopted adhesive can be common metal repairing agent or metal adhesive; the hammer head is simple to manufacture, is convenient for assembly line manufacture, and can also be used for repairing, replacing and the like of the wear-resistant alloy pin 4 properly. The non-return screw connection is realized by correspondingly processing screw threads in the combination surface of the wear-resistant alloy pin 4 and the corresponding embedded hole 3 and arranging a non-return groove on the screw threads, and after the wear-resistant alloy pin 4 is screwed into the embedded hole 3, the screw threads are deformed and clamped in the non-return groove due to tightening, so that the connection between the two is realized; the non-return mode can also adopt a non-return ring, a non-return gasket and the like; in addition, the non-return groove can be omitted. The interference fit connection is realized by heating the operation part 5, then embedding the wear-resistant alloy pins 4 into the corresponding embedding holes 3, and realizing the connection after cooling; the design size of the wear-resistant alloy pin 4 is larger than the size of the embedded hole 3, so that the wear-resistant alloy pin 4 is extruded into the embedded hole 3 by external force application, and the wear-resistant alloy pin 4 is embedded into the embedded hole 3. The metallurgical bonding connection is realized by carrying out hot melting on the bonding surface of the wear-resistant alloy pin 4 and/or the inner wall surface of the embedded hole 3, then installing the wear-resistant alloy pin 4 into the embedded hole 3, and realizing the connection after cooling; or metallurgically bonding, when the wear-resistant alloy pin 4 is installed in the corresponding embedded hole 3, filling solder between the wear-resistant alloy pin 4 and the embedded hole 3, then realizing metallurgical bonding between the wear-resistant alloy pin 4 and the embedded hole 3 through high temperature, and then cooling to obtain the hammer. Pouring connection, namely pouring a high-strength alloy liquid material in a molten state into the corresponding embedded holes 3, cooling to obtain wear-resistant alloy pins 4 embedded into the embedded holes 3, and further obtaining the embedded holes 3; or the wear-resistant alloy pin 4 is fixed in a pouring die of the hammer, then the hammer is poured in the pouring die, the hammer is obtained after cooling, or an intermediate of the hammer is obtained, and then the hammer is obtained after integral processing.

As shown in fig. 5, in this embodiment, the included angle between the hole axis of the embedded hole 3 and the friction working surface 501 is 30 ° -85 °, and a reasonable included angle is selected, so that most of the wear-resistant alloy pins 4 are in contact with the material as much as possible along the axial direction, especially when the wear-resistant alloy pins are used for the material with larger hardness and the material with larger particle size, the inclined force is avoided during the crushing or grinding process, and the wear-resistant alloy pins 4 are gradually loosened and even deviate; meanwhile, the crushing or grinding efficiency can be improved, and the durability of the hammer head is improved. When the included angle between the hole axis of the embedded hole 3 and the friction working surface 501 is smaller than 30 degrees, it is difficult to keep most of the wear-resistant alloy pins 4 in contact with the material in the axial direction, so when crushing or grinding is frequently performed, the wear-resistant alloy pins 4 are easy to loosen, the material enters the gap between the wear-resistant alloy pins 4 and the embedded hole 3, and the wear-resistant alloy pins 4 are separated. When the included angle between the hole axis of the embedded hole 3 and the friction working surface 501 is smaller than 30 degrees, it is difficult to keep most of the wear-resistant alloy pins 4 in contact with the material in the axial direction, so when the wear-resistant alloy pins 4 are frequently crushed or ground, the wear-resistant alloy pins 4 are easy to loose, the material enters the gap between the wear-resistant alloy pins 4 and the embedded hole 3, and the problems of reduction of crushing or grinding efficiency, increase of noise in the working process, thinning of the wall of the embedded hole 3, cracking and breakage of a hammer head and the like are caused.

In this embodiment, as shown in fig. 5, the tilt direction of the exposed end of the wear-resistant alloy pin 4 matches the rotation direction of the hammer head. The inclination direction of the wear-resistant alloy pin 4 is kept consistent with the rotation direction of the hammer head, and the wear-resistant alloy pin 4 is positioned on a circumferential tangent line taking the assembly shaft hole 101 as the center, so that most of the wear-resistant alloy pin 4 is contacted with materials as much as possible along the axial direction, and particularly when aiming at materials with larger hardness and materials with larger particles, the generation of deflection force in the crushing or grinding process is avoided, and the wear-resistant alloy pin 4 is gradually loosened and even separated.

In this embodiment, the exposed end of the wear-resistant alloy pin 4 is inclined toward the outer edge of the friction working face 501; or the exposed end of the wear resistant alloy pin 4 is inclined towards the centre of the friction working face 501; or the inclined directions of the exposed ends of the wear-resistant alloy pins 4 are the same; or the exposed ends of the wear resistant alloy pins 4 may be inclined differently. The wear-resistant alloy pins 4 and the inclination directions thereof can be reasonably distributed according to the working mode, the action process, the material types and the like of the hammer head, so that the requirements and the use under different working conditions are met.

As shown in fig. 5, in the present embodiment, the base structures of the fitting portion 1 and the working portion 5 are each a low-strength alloy elastic base structure; the wear-resistant alloy pin 4 adopts a high-strength alloy rigid matrix structure. The low-strength alloy elastic matrix structure and the high-strength alloy rigid matrix structure are a group of structure structures with opposite performances, namely: the assembling part 1 and the working part 5 have low strength, poor wear resistance, high elasticity and low rigidity relative to the wear-resistant alloy pin 4; in contrast, the wear-resistant alloy pin 4 has high strength, high rigidity, and high wear resistance relative to the fitting portion 1 and the working portion 5. The structure of the assembly part 1 and the operation part 5 adopts a low-strength alloy elastic matrix structure with relatively low cost as a matrix structure of the whole hammer head, and brings a certain elastic buffer effect, the structure of the wear-resistant alloy pin 4 adopts a high-strength alloy rigid matrix structure with relatively high cost as a main working part of the whole movable hammer head, and is used for playing a main material moving function, and the assembly part 1 and the operation part 5 are organically combined with the wear-resistant alloy pin 4 to generate a synergistic effect, so that the working efficiency of crushing or grinding of the hammer head can be improved, the crushing or grinding effect is better, and each structural part moving and stressed in the equipment can be effectively protected in the crushing or grinding process, thereby prolonging the service life of the whole equipment, and effectively reducing the manufacturing cost and the use and maintenance cost.

The crusher of the embodiment comprises the hammer head for the crusher and/or comprises the hammer head for the pulverizer.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A hammer head for a crusher comprises an assembling part (1) and a material moving part (2),

an assembly shaft hole (101) is arranged on the assembly part (1), one end of the material moving part (2) far away from the assembly part (1) is provided with a material moving working surface (201) for pushing materials by utilizing the contact of an inclined plane and the materials in the rotation process of the material moving hammer along the assembly shaft hole (101),

the material moving working surface (201) and the assembly shaft hole (101) are arranged at a space included angle,

it is characterized in that the method comprises the steps of,

a plurality of embedded holes (3) are uniformly distributed on the material moving working surface (201),

the embedded holes (3) are formed in the vertical direction of the material moving working surface (201), wear-resistant alloy pins (4) are arranged in the embedded holes (3), the wear-resistant alloy pins (4) are arranged in one-to-one correspondence with the embedded holes (3), and one end of each wear-resistant alloy pin (4) facing the material moving working surface (201) is exposed out of the material moving working surface (201).

2. A hammer head for a crusher according to claim 1, characterized in that,

the wear-resistant alloy pin (4) is in a block shape, a strip shape or a ring shape; or alternatively

The section of the wear-resistant alloy pin (4) is circular, elliptical or polygonal; or alternatively

The surface of the wear-resistant alloy pin (4) is a plane or a curved surface.

3. A hammer head for a crusher according to claim 1, characterized in that,

the minimum wall thickness of the embedded hole (3) is 8 mm-15 mm.

4. A hammer head for a crusher according to claim 3, characterized in that,

the base structures of the assembling part (1) and the material moving part (2) are metal base structures;

the wear-resistant alloy pin (4) adopts an alloy rigid matrix structure.

5. A hammer head for a crusher according to any one of claims 1-4,

the space included angle between the material moving working surface (201) and the assembly shaft hole (101) is 30-75 degrees.

6. A hammerhead for a pulverizer comprises an assembly part (1) and a working part (5),

the assembly part (1) is provided with an assembly shaft hole (101), the end surface of the operation part (5) far away from the assembly part (1) is provided with a friction working surface (501) for contacting with materials to grind the materials,

it is characterized in that the method comprises the steps of,

a plurality of embedded holes (3) are uniformly distributed on the friction working surface (501), the embedded holes (3) and the friction working surface (501) are distributed in an included angle,

the embedded holes (3) are internally provided with wear-resistant alloy pins (4), the wear-resistant alloy pins (4) are arranged in one-to-one correspondence with the embedded holes (3), one end of each wear-resistant alloy pin (4) facing the friction working surface (501) is exposed out of the friction working surface (501),

the minimum wall thickness of the embedded hole (3) is more than 8mm.

7. The hammerhead for pulverizer as claimed in claim 6, wherein,

the included angle between the hole axis of the embedded hole (3) and the friction working face (501) is 30-85 degrees.

8. The hammerhead for pulverizer as claimed in claim 7, wherein,

the inclination direction of the exposed end of the wear-resistant alloy pin (4) is matched with the rotation direction of the hammer head.

9. The hammerhead for pulverizer as claimed in claim 7, wherein,

the exposed end of the wear-resistant alloy pin (4) is inclined towards the outer edge direction of the friction working surface (501); or alternatively

The exposed end of the wear-resistant alloy pin (4) is inclined towards the center of the friction working surface (501); or alternatively

The inclination directions of the exposed ends of the wear-resistant alloy pins (4) are the same; or the exposed ends of the wear-resistant alloy pins (4) are inclined in different directions.

10. Hammerhead for pulverizers according to any of claims 6 to 9, characterized in that,

the base structures of the assembling part (1) and the operating part (5) are metal base structures;

the wear-resistant alloy pin (4) adopts an alloy rigid matrix structure.

11. A crusher is characterized in that,

comprising a hammer head for a crusher as claimed in any one of claims 1 to 5, and/or

A hammerhead for a pulverizer of any one of claims 6 to 10.

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