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CN-224208121-U - Tooth hammer for column crusher and column crusher

CN224208121UCN 224208121 UCN224208121 UCN 224208121UCN-224208121-U

Abstract

The utility model relates to the technical field of crushing element structures of crushers and discloses a tooth hammer for a column crusher and the column crusher. The tooth hammer for the column crusher comprises an annular hammer body, hammer heads are arranged on the outer side wall of the annular hammer body, the hammer heads are distributed along the radial direction of the annular hammer body, a plurality of hammer heads are distributed along the circumferential direction of the annular hammer body at intervals, a hard alloy block embedded in a matrix of the annular hammer body is arranged on a crushing working surface of the hammer heads, and the hard alloy block is provided with an exposed surface exposed out of the crushing working surface of the hammer heads. Through embedding the carbide piece on the tup, improved crushing efficiency, wearability, the reliability of tooth hammer effectively, also reduced the running cost and maintained the degree of difficulty simultaneously to the wholeness of post garrulous machine has been improved and life has been reached. The original shape and shape of the tooth hammer are slightly changed and influenced, so the tooth hammer has good universality, is convenient to widely popularize and apply, and is suitable for crushing and using high-strength and high-hardness materials.

Inventors

  • HAO TIANCHENG
  • FU YOUMING

Assignees

  • 长沙深湘通用机器有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (10)

  1. 1. A tooth hammer for a column crusher is characterized by comprising an annular hammer body (100), The outer side wall of the annular hammer body (100) is provided with hammer heads (200), the hammer heads (200) are distributed along the radial direction of the annular hammer body (100), A plurality of hammerheads (200) are arranged at intervals along the circumferential direction of the annular hammer body (100), A hard alloy block (300) embedded in a matrix facing the annular hammer body (100) is arranged on the crushing working surface (201) of the hammer head (200), and the hard alloy block (300) is provided with an exposed surface (301) exposed to the outside of the crushing working surface (201) of the hammer head (200).
  2. 2. The toothed hammer for column crusher according to claim 1, wherein, Each hammer head (200) is internally embedded with a hard alloy block (300), or each hammer head (200) is internally embedded with a plurality of hard alloy blocks (300), and the hard alloy blocks (300) are uniformly distributed at intervals; the lateral direction of the hard alloy block (300) is provided with a built-in groove (302), the built-in groove (302) is arranged perpendicular to the surface of the hammer head (200) or inclined to the surface of the hammer head (200), and the hard alloy block (300) is embedded in the matrix of the hammer head (200) through the built-in groove (302); The embedded grooves (302) on one side of the hammer head (200) are symmetrically arranged or arranged in an array, and/or the embedded grooves (302) on two sides of the hammer head (200) are symmetrically arranged or asymmetrically arranged.
  3. 3. The toothed hammer for column crusher according to claim 1, wherein, The cemented carbide pieces (300) are arranged close to the direction of rotation of the hammer head (200).
  4. 4. The toothed hammer for column crusher according to claim 1, wherein, The exposed ends of the hard alloy blocks (300) are obliquely arranged towards the rotation advancing direction of the hammer head (200).
  5. 5. The toothed hammer for column crusher according to claim 1, wherein, The surface of the exposed surface (301) near the rotary advancing side of the hammer head (200) is flush with the crushing work surface (201).
  6. 6. The toothed hammer for column crusher according to claim 5, wherein, The surface of the exposed surface (301) on the side facing away from the rotary advancing side of the hammer head (200) is arranged so as to be submerged with respect to the crushing work surface (201).
  7. 7. The toothed hammer for a column crusher according to any one of claims 1 to 6, wherein, The number of hard alloy blocks (300) embedded on each hammer head (200) is the same or different, and/or The shape of the hard alloy block (300) embedded on each hammer head (200) is the same or different, and/or The hard alloy blocks (300) embedded on each hammer head (200) are the same or different in size, and/or The hard alloy block (300) is in the shape of a polygonal cylinder, a polygonal frustum, a polygonal cone, a cylinder, a frustum cone, a cone, an elliptical cylinder, an elliptical frustum or an elliptical cone.
  8. 8. The toothed hammer for a column crusher according to any one of claims 1 to 6, wherein, A plurality of hard alloy blocks (300) are embedded on each hammer head (200); the spacing between two adjacent hard alloy blocks (300) on different hammerheads (200) is the same or different, or The spacing between two adjacent hard alloy blocks (300) on the hammer heads (200) is distributed in a way that the spacing is gradually increased or the spacing is gradually reduced on different hammer heads (200) in the rotating advancing direction of the hammer heads (200).
  9. 9. The toothed hammer for a column crusher according to any one of claims 1 to 6, wherein, The annular hammer body (100) is provided with three hammerheads (200), four hammerheads (200), five hammerheads (200) or six hammerheads (200), and/or The crushing working surface (201) of the hammer head (200) is a plane, a broken line surface or an arc surface.
  10. 10. A column crusher comprising the toothed hammer for column crusher according to any one of claims 1 to 9.

Description

Tooth hammer for column crusher and column crusher Technical Field The utility model relates to the technical field of crusher element structures, in particular to a tooth hammer for a column crusher. In addition, the utility model also relates to a column crusher comprising the tooth hammer for the column crusher. Background The column crusher is efficient crushing equipment, and the working principle is to strike and tear materials by utilizing the high-speed rotation of a hammer head so as to achieve the purpose of crushing, and meanwhile, the principle of crushing and screening is adopted so as to realize efficient crushing and screening of the materials. The tooth hammer is a key component in column crushers, whose design and material selection directly affect crushing efficiency and durability of the apparatus. The hammers are typically made of high strength wear resistant materials to resist wear caused by contact with the material during high speed rotation. The existing tooth hammer has the following problems: 1. the abrasion problem is that the tooth hammer head needs to repeatedly strike materials in the working process, so that the abrasion speed is high, frequent replacement is needed, and the operation cost is increased. 2. Fracture problem is that when the material with higher hardness is processed, the hammer head of the tooth hammer can be broken, which not only affects the production efficiency, but also can cause damage to equipment. 3. The problem of thermal fatigue is that the tooth hammer is subjected to periodic thermal stress in the working process, which can lead to thermal fatigue cracks and shorten the service life of the tooth hammer. 4. The problem of material blockage is that if the design of the tooth hammer is unreasonable, the material can be blocked in the crushing cavity, and the crushing efficiency is affected. Disclosure of utility model The utility model provides a tooth hammer for a column crusher and the column crusher, which aim to solve the technical problems that the existing tooth hammer is easy to wear and break and is subject to thermal fatigue damage, so that the service life of the tooth hammer is reduced, the operation efficiency is reduced and the cost is increased. According to one aspect of the utility model, a toothed hammer for a column crusher is provided, and the toothed hammer comprises an annular hammer body, wherein hammerheads are arranged on the outer side wall of the annular hammer body, the hammerheads are distributed along the radial direction of the annular hammer body, a plurality of hammerheads are distributed at intervals along the circumferential direction of the annular hammer body, a hard alloy block embedded towards a matrix of the annular hammer body is arranged on a crushing working surface of the hammerheads, and the hard alloy block is provided with an exposed surface exposed towards the crushing working surface of the hammerheads. Further, each hammer is embedded with a hard alloy block, or each hammer is embedded with a plurality of hard alloy blocks which are uniformly distributed at intervals. Further, embedding grooves are distributed in the lateral direction of the hard alloy block, the embedding grooves are distributed perpendicular to the surface of the hammer head or inclined to the surface of the hammer head, the hard alloy block is embedded in a matrix of the hammer head through the embedding grooves, the embedding grooves on one side of the hammer head are symmetrically distributed or arrayed, and/or the embedding grooves on two sides of the hammer head are symmetrically distributed or asymmetrically distributed. Further, the cemented carbide pieces are arranged close to the rotational advancing direction of the hammer head. Further, the exposed ends of the cemented carbide pieces are arranged obliquely toward the rotational advancing direction of the hammer head. Further, the surface of the exposed surface, which is close to the rotary advancing side of the hammer head, is flush with the crushing work surface. Further, the surface of the exposed surface facing away from the rotary advancing side of the hammer head is disposed so as to be submerged with respect to the crushing work surface. Further, the number of the hard alloy blocks embedded on each hammer head is the same or different, and/or the shape of the hard alloy blocks embedded on each hammer head is the same or different, and/or the size of the hard alloy blocks embedded on each hammer head is the same or different, and/or the shape of the hard alloy blocks is a polygonal cylinder, a polygonal frustum, a polygonal cone, a cylinder, a frustum of cone, a cone, an elliptic cylinder, an elliptic frustum, an elliptic cone or other polyhedron, etc. The hard alloy block can also be in a block shape or a strip shape. The cross-sectional shape of the cemented carbide pieces may also be triangular, quadrilateral, circular, elliptical or other polygonal. Further, each h