Tooth hammer for column crusher and column crusher
By embedding a carbide block into the hammer head and optimizing the design of the embedding groove, the problems of wear, fracture and thermal fatigue of the hammer are solved, thereby improving crushing efficiency and equipment reliability and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA SHENXIANG UNIVERSAL MACHINE
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-08
AI Technical Summary
Existing toothed hammers suffer from rapid wear, breakage, thermal fatigue, and material blockage, resulting in short service life, high operating costs, and low production efficiency.
A cemented carbide block is embedded in the hammerhead of the toothed hammer. The exposed surface of the cemented carbide block participates in the crushing process. The embedded groove design ensures stable embedding. The combination of the hammerhead and the carbide block improves wear resistance and toughness and alleviates thermal fatigue.
It extends the service life of the toothed hammer, reduces operating costs, improves crushing efficiency and equipment reliability, reduces material rebound and splashing, and is suitable for crushing high-strength materials.
Smart Images
Figure CN224208121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crushing element structure in crushers, and in particular, to a toothed hammer for a column crusher. Furthermore, this utility model also relates to a column crusher including the aforementioned toothed hammer. Background Technology
[0002] A pillar crusher is a high-efficiency crushing equipment. Its working principle is to use the high-speed rotation of the hammer to strike and tear the material, thereby achieving the purpose of crushing. At the same time, it adopts the principle of crushing and screening simultaneously to achieve efficient crushing and screening of materials.
[0003] The toothed hammer is a key component of a pillar crusher, and its design and material selection directly affect crushing efficiency and equipment durability. Toothed hammers are typically made of high-strength, wear-resistant materials to resist wear caused by contact with materials during high-speed rotation.
[0004] The existing toothed hammer has the following problems:
[0005] 1. Wear and tear: Because the toothed hammer head needs to repeatedly strike materials during operation, it wears out quickly and needs to be replaced frequently, which increases operating costs.
[0006] 2. Fracture problem: When processing materials with high hardness, the hammer head may break, which not only affects production efficiency, but may also damage the equipment.
[0007] 3. Thermal fatigue problem: During operation, the toothed hammer is subjected to periodic thermal stress, which may lead to thermal fatigue cracks and shorten the service life of the toothed hammer.
[0008] 4. Material blockage problem: If the design of the hammer teeth is not reasonable, it may cause material to block the crushing chamber, affecting the crushing efficiency. Utility Model Content
[0009] This utility model provides a toothed hammer for a column crusher and a column crusher to solve the technical problems of existing toothed hammers being prone to wear, breakage, and thermal fatigue damage, which leads to reduced hammer life, reduced operating efficiency, and increased costs.
[0010] According to one aspect of the present invention, a toothed hammer for a column crusher is provided, comprising an annular hammer body, a hammer head provided on the outer side wall of the annular hammer body, the hammer head being arranged radially along the annular hammer body, and a plurality of hammer heads being arranged at intervals along the circumference of the annular hammer body. A hard alloy block embedded in the matrix facing the annular hammer body is provided on the crushing working surface of the hammer head, and the hard alloy block has an exposed surface facing the crushing working surface of the hammer head.
[0011] Furthermore, each hammerhead is embedded with a cemented carbide block; or each hammerhead is embedded with multiple cemented carbide blocks, which are arranged at uniform intervals.
[0012] Furthermore, the cemented carbide block is provided with a recessed groove on its side. The recessed groove is arranged perpendicular to the surface of the hammer head or inclined to the surface of the hammer head. The cemented carbide block is embedded in the base of the hammer head through the recessed groove. The recessed grooves on one side of the hammer head are arranged symmetrically or in an array, and / or the recessed grooves on both sides of the hammer head are arranged symmetrically or asymmetrically.
[0013] Furthermore, the cemented carbide blocks are arranged close to the direction of rotation of the hammer head.
[0014] Furthermore, the exposed end of the cemented carbide block is inclined toward the direction of rotation of the hammer head.
[0015] Furthermore, the exposed surface near the side of the hammer that rotates forward is flush with the crushing working surface.
[0016] Furthermore, the exposed surface on the side furthest from the rotating forward side of the hammer is arranged in a downward orientation relative to the crushing working face.
[0017] Furthermore, the number of cemented carbide blocks embedded in each hammerhead may be the same or different; and / or the shape of the cemented carbide blocks embedded in each hammerhead may be the same or different; and / or the size of the cemented carbide blocks embedded in each hammerhead may be the same or different; and / or the shape of the cemented carbide blocks may be a polygonal prism, a polygonal frustum, a polygonal cone, a cylinder, a frustum, a cone, an elliptical prism, an elliptical frustum, an elliptical cone, or other polyhedral shapes. The cemented carbide blocks may also be block-shaped or strip-shaped. The cross-sectional shape of the cemented carbide blocks may also be triangular, quadrilateral, circular, elliptical, or other polygonal.
[0018] Furthermore, each hammerhead is embedded with multiple cemented carbide blocks; the spacing between two adjacent cemented carbide blocks on different hammerheads may be the same or different, or the spacing between two adjacent cemented carbide blocks on a hammerhead may be arranged in a gradually increasing or gradually decreasing manner on different hammerheads in the direction of rotation of the hammerhead.
[0019] Furthermore, the annular hammer body is provided with three, four, five, or six hammer heads; and / or the crushing working surface of the hammer head is a plane, a broken line surface, or an arc surface.
[0020] According to another aspect of the present invention, a column crusher is also provided, which includes the aforementioned column crusher toothed hammer.
[0021] This utility model has the following beneficial effects:
[0022] This utility model relates to a toothed hammer for a column crusher. The cemented carbide block has higher hardness and better wear resistance than the hammerhead, enabling effective material crushing and improved crushing efficiency. The exposed surface of the cemented carbide block directly participates in the crushing process, better withstanding the impact and wear generated during material crushing. The embedded cemented carbide block significantly improves the wear resistance of the hammerhead, extending its service life. This is crucial for toothed hammers that require repeated impact on hard materials, reducing replacement frequency and lowering operating costs. The cemented carbide block design makes the hammerhead's crushing surface more robust, enabling more effective material crushing, reducing material rebound and splashing, and improving efficiency. The uniformity of crushing effect is improved. Because cemented carbide blocks have higher toughness and strength than hammerheads, the risk of hammerhead breakage under high-load conditions is reduced, thus improving equipment reliability and safety. The use of cemented carbide blocks, through their embedded combination with the hammerhead, can alleviate thermal fatigue to some extent, as cemented carbide typically has better resistance to thermal fatigue, reducing cracks caused by cyclic thermal stress. Embedding cemented carbide blocks into the hammerhead effectively improves the crushing efficiency, wear resistance, and reliability of the hammer teeth, while also reducing operating costs and maintenance difficulty, thereby improving the overall performance and service life of the pillar crusher. The original shape and form of the hammer teeth are not significantly altered, thus offering better versatility and facilitating widespread application, making it suitable for crushing high-strength and high-hardness materials.
[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0025] Figure 1 This is one of the structural schematic diagrams of the toothed hammer for the column crusher according to a preferred embodiment of this utility model;
[0026] Figure 2 This is the second schematic diagram of the structure of the toothed hammer for the column crusher according to a preferred embodiment of this utility model;
[0027] Figure 3 This is the third schematic diagram of the structure of the toothed hammer for the column crusher according to a preferred embodiment of this utility model;
[0028] Figure 4 This is the fourth schematic diagram of the structure of the toothed hammer for the column crusher in the preferred embodiment of this utility model;
[0029] Figure 5 This is the fifth schematic diagram of the structure of the toothed hammer for the column crusher in the preferred embodiment of this utility model;
[0030] Figure 6 This is a schematic diagram of the structure of the cemented carbide block according to a preferred embodiment of the present invention;
[0031] Figure 7 yes Figure 6 A-direction view.
[0032] Legend:
[0033] 100, Annular hammer body; 200, Hammer head; 201, Crushing working surface; 300, Hard alloy block; 301, Exposed surface; 302, Embedded groove. Detailed Implementation
[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.
[0035] Figure 1 This is one of the structural schematic diagrams of the toothed hammer for the column crusher according to a preferred embodiment of this utility model; Figure 2 This is the second schematic diagram of the structure of the toothed hammer for the column crusher according to a preferred embodiment of this utility model; Figure 3 This is the third schematic diagram of the structure of the toothed hammer for the column crusher according to a preferred embodiment of this utility model; Figure 4 This is the fourth schematic diagram of the structure of the toothed hammer for the column crusher in the preferred embodiment of this utility model; Figure 5 This is the fifth schematic diagram of the structure of the toothed hammer for the column crusher in the preferred embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the cemented carbide block according to a preferred embodiment of the present invention; Figure 7 yes Figure 6 A-direction view.
[0036] like Figure 1 As shown, the toothed hammer for the column crusher in this embodiment includes an annular hammer body 100. Hammer heads 200 are provided on the outer wall of the annular hammer body 100. The hammer heads 200 are arranged radially along the annular hammer body 100, and multiple hammer heads 200 are arranged at intervals circumferentially along the annular hammer body 100. A hard alloy block 300 is embedded in the base of the hammer head 200 and faces the annular hammer body 100 on its crushing working surface 201. The shape of the hard alloy block 300 can be as follows: Figure 6It can be in block form, or in cylindrical, triangular prism, or other polyhedral shapes. The cemented carbide block 300 has an exposed surface 301 facing the crushing working surface 201 of the hammer head 200. In this utility model, the cemented carbide block 300, compared to the hammer head 200, has higher hardness and better wear resistance, effectively crushing materials and improving crushing efficiency. The exposed surface 301 of the cemented carbide block 300 directly participates in the crushing process, better withstanding the impact and wear generated during material crushing. The embedded use of the cemented carbide block 300 significantly improves the wear resistance of the hammer head 200, extending its service life, which is crucial for toothed hammers that need to repeatedly strike hard materials, reducing replacement frequency and lowering operating costs. The design of the cemented carbide block 300 makes the crushing working surface 201 of the hammer head 200 more robust, enabling more effective material crushing and reducing material rebound and splashing. This design improves the uniformity of crushing; because the cemented carbide block 300 has higher toughness and strength than the hammer head 200, it reduces the risk of hammer head 200 breaking under high-load working conditions, thereby improving the reliability and safety of the equipment; the use of cemented carbide block 300, through its embedded combination with the hammer head 200, can alleviate thermal fatigue problems to a certain extent, as cemented carbide generally has better resistance to thermal fatigue and can reduce cracks caused by cyclic thermal stress; by embedding cemented carbide block 300 into the hammer head 200, the crushing efficiency, wear resistance, and reliability of the toothed hammer are effectively improved, while also reducing operating costs and maintenance difficulty, thereby improving the overall performance and service life of the pillar crusher. The original shape and form of the toothed hammer are not significantly altered or affected, thus offering better versatility and facilitating widespread application, making it suitable for crushing high-strength and high-hardness materials.
[0037] like Figure 6 and Figure 7As shown, in this embodiment, the cemented carbide block 300 is laterally provided with a retaining groove 302. The retaining groove 302 is arranged perpendicular to the surface of the hammer head 200 or inclined to the surface of the hammer head 200. The cemented carbide block 300 is embedded in the base of the hammer head 200 through the retaining groove 302. The retaining grooves 302 on one side of the hammer head 200 are arranged symmetrically or in an array, and / or the retaining grooves 302 on both sides of the hammer head 200 are arranged symmetrically or asymmetrically. Through the design of the retaining groove 302, the cemented carbide block 300 is less likely to fall off, providing higher structural strength. The mechanical restraint effect of the cemented carbide block 300 embedded in the base of the hammer head 200 through the retaining groove 302 greatly extends the service life of the cemented carbide block. It reduces the work of re-embedding due to the cemented carbide block falling off, saves costs, and improves production efficiency. The vertical or inclined arrangement of the embedding grooves 302: The embedding grooves 302 can be arranged perpendicular to the surface of the hammer 200 or inclined to the surface of the hammer 200, providing different mechanical limiting methods to adapt to different working conditions. For example, a targeted inclined design based on the handling conditions can achieve better crushing effect and prevent the cemented carbide blocks 300 from loosening. The symmetrical or array arrangement of the embedding grooves 302: The embedding grooves 302 on one side of the hammer 200 can be arranged symmetrically or in an array. This arrangement helps to evenly distribute the cemented carbide blocks 300, thereby improving the wear resistance and crushing efficiency of the hammer 200. The symmetrical or asymmetrical arrangement of the embedding grooves 302: The embedding grooves 302 on both sides of the hammer 200 can be arranged symmetrically or asymmetrically, which can be adjusted according to specific crushing requirements to optimize the performance of the hammer 200. These solutions provide different design options to meet different crushing tasks and working environments, ensuring the efficient operation and durability of the pillar crusher. Optionally, such as Figure 6 , 7 As shown, the embedding groove 302 is a groove-shaped recess, which allows the cemented carbide block 300 to be embedded in the hammer head 200 base in a hook-like manner, ensuring the overall stability of the embedding structure. Optionally, as... Figure 7 As shown, the two retaining grooves 302 are symmetrically arranged on one side of the cemented carbide block 300, that is, they are both inclined with their outer ends relatively far apart; while on the other side of the cemented carbide block 300, the two retaining grooves 302 are inclined with their outer ends relatively close together. This asymmetrical arrangement on both sides of the cemented carbide block 300 is beneficial to disperse the force during crushing, avoid stress concentration which could lead to structural loosening or instability, or even detachment, and thus improve the service life of the hammer.
[0038] like Figure 1 and Figure 2As shown, in this embodiment, each hammerhead 200 is embedded with a cemented carbide block 300; or each hammerhead 200 is embedded with multiple cemented carbide blocks 300, which are arranged at uniform intervals. Due to their high hardness and wear resistance, the cemented carbide blocks 300 can effectively resist wear caused by contact with materials during high-speed rotation, thereby extending the service life of the hammerhead 200. The embedding of the cemented carbide blocks 300 improves the crushing capacity of the hammerhead 200, especially when processing materials with high hardness, enabling more effective crushing. When multiple cemented carbide blocks 300 are evenly spaced within the hammerhead 200, the wear on the surface of the hammerhead 200 is more uniform, avoiding excessive local wear and further extending the service life of the hammerhead 200. The uniformly distributed cemented carbide blocks 300 can... The design ensures that the hammer 200 crushes the material more evenly during rotation, improving crushing efficiency and the quality of the finished product. The embedded carbide blocks 300 help disperse the impact force on the hammer 200 during crushing, reducing the risk of hammer breakage. Due to the wear resistance of the carbide blocks 300, the replacement frequency of the hammer 200 can be reduced, thereby lowering maintenance costs and downtime. The design of embedding one or more carbide blocks 300 in each hammer 200 provides flexibility in adjusting the number and distribution of carbide blocks 300 according to crushing requirements and material characteristics.
[0039] like Figure 2In this embodiment, the cemented carbide blocks 300 are arranged close to the rotational direction of the hammer 200. Due to their high hardness and wear resistance, the cemented carbide blocks 300 can effectively crush materials. When these blocks are close to the rotational direction, they more easily capture and crush materials in that direction, thereby improving crushing efficiency. This arrangement of the cemented carbide blocks 300 allows the hammer 200 to bear wear more evenly during rotation, especially in the rotational direction, where the blocks 300 better resist wear, extending the service life of the hammer 200. It also helps the hammer 200 to concentrate and effectively crush materials during rotation, improving the uniformity of the crushing effect and reducing material rebound and splashing. Furthermore, the arrangement of the cemented carbide blocks 300 close to the rotational direction also helps to disperse the impact force experienced by the hammer 200 during crushing. The design reduces the risk of hammer 200 breakage, thereby improving the reliability and safety of the equipment. While the cemented carbide blocks 300 are relatively expensive compared to other components, their concentrated distribution close to the rotating direction of the hammer 200 significantly improves wear resistance and reduces maintenance needs. This arrangement also reduces unnecessary embedding areas, resulting in higher cost-effectiveness and economic benefits in long-term operation. This design can adapt to crushing materials of different particle sizes and hardnesses, offering flexibility and meeting diverse crushing requirements. The arrangement of the cemented carbide blocks 300 close to the rotating direction of the hammer 200 effectively improves crushing efficiency, durability, and economy, while also reducing maintenance costs and downtime, thus enhancing the overall performance and service life of the crusher.
[0040] like Figure 3 As shown, in this embodiment, the exposed end of the cemented carbide block 300 is inclined towards the direction of rotation of the hammer 200. The inclined arrangement of the cemented carbide block 300 makes it easier for it to contact the material in the direction of movement, thus enabling more effective crushing during hammer 200 rotation and improving crushing efficiency. The high hardness and wear resistance of the cemented carbide block 300 cause it to withstand significant wear during crushing; the inclined arrangement helps to disperse this wear, extending the service life of both the cemented carbide block 300 and the hammer 200. The inclined arrangement of the cemented carbide block 300 helps to create a more favorable crushing angle, resulting in more thorough material crushing and improved crushing quality. It also better absorbs and disperses the impact force during crushing, reducing the risk of hammer 200 breakage.
[0041] like Figure 1 and Figure 2As shown, in this embodiment, the surface of the exposed surface 301 near the rotating and advancing side of the hammer 200 is flush with the crushing working surface 201. This allows the exposed surface 301 of the carbide block 300 to form a continuous crushing edge on the crushing working surface 201, which helps to crush materials more effectively and improve crushing efficiency. Due to its high hardness and wear resistance, the carbide block 300 can effectively resist wear. When the exposed surface 301 is flush with the crushing working surface 201, wear can be distributed more evenly, extending the service life of the carbide block 300 and the hammer 200. The flush arrangement of the carbide blocks 300 helps to form a more favorable crushing angle, making the material crushing more thorough and improving the crushing quality. The flush arrangement of the carbide blocks 300 can better absorb and disperse the impact force during the crushing process, reducing the risk of hammer 200 breakage, thereby improving the reliability and safety of the equipment.
[0042] like Figure 1 and Figure 2 As shown, in this embodiment, the surface of the exposed surface 301 away from the rotating and advancing side of the hammer 200 is arranged in a recessed manner relative to the crushing working surface 201. The recessed cemented carbide block 300 can serve as a protective layer for the crushing working surface 201. Only the cemented carbide block 300 is in direct contact with the material, thereby reducing the wear of the hammer 200 body and extending the service life of the hammer 200. The recessed design of the cemented carbide block 300 allows its exposed surface 301 to contact the material more effectively during crushing operations. Due to the high hardness of cemented carbide, it can crush materials more effectively, improving crushing efficiency. It also helps to form a more favorable crushing angle, making the material crushed more thoroughly and improving the crushing quality. The recessed cemented carbide block 300 can better absorb and disperse the impact force during the crushing process, reducing the risk of hammer 200 breakage, thereby improving the reliability and safety of the equipment. The combination of the sunken design and the flush design of the exposed surface 301 creates a synergistic effect. It can form a crushing angle, making the material crush more thoroughly and improving the crushing quality. It can also form a continuous crushing edge on the crushing working surface 201, which helps to crush the material more effectively and improve crushing efficiency. At the same time, it can also cause the force acting on the material to change irregularly, which is more conducive to the crushing of the material.
[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in this embodiment, the number of cemented carbide blocks 300 embedded on each hammer head 200 may be the same or different; and / or the shapes of the cemented carbide blocks 300 embedded on each hammer head 200 may be the same or different; and / or the sizes of the cemented carbide blocks 300 embedded on each hammer head 200 may be the same or different. Optionally, the cross-sectional shape of the cemented carbide block 300 is polygonal, elliptical, or circular. Optionally, the cross-sectional shape of the cemented carbide block 300 is rectangular, square, triangular, or sector-shaped. Optionally, the cemented carbide block 300 adopts a cylindrical structure, a polygonal prism structure, a triangular prism structure, a rectangular prism structure, a square prism structure, a triangular frustum structure, a polygonal frustum structure, or a frustum structure.
[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in this embodiment, each hammerhead 200 is embedded with multiple cemented carbide blocks 300. The spacing between adjacent cemented carbide blocks 300 on different hammerheads 200 may be the same or different, or the spacing between adjacent cemented carbide blocks 300 on different hammerheads 200 may gradually increase or gradually decrease in the direction of rotation of the hammerhead 200. Different numbers, shapes, and sizes of cemented carbide blocks 300 can adapt to different crushing tasks; for example, for materials with different hardness, the crushing force can be adjusted by changing the number and size of the cemented carbide blocks 300, thereby improving crushing efficiency and effect; when the cemented carbide blocks 300 are evenly spaced with different shapes and sizes, it can be ensured that the hammerhead 200 forms a periodically changing crushing action on the material when rotating, thereby improving the uniformity of the crushing effect; due to their high hardness and wear resistance, the cemented carbide blocks 300 can effectively resist wear. Designing carbide blocks 300 in different shapes and sizes allows for more even wear distribution, extending the service life of the hammers 200. The diverse design of the carbide blocks 300 helps create more favorable crushing angles, resulting in more thorough material crushing and improved crushing quality. The uniform spacing of the carbide blocks 300 helps disperse the impact force on the hammers 200 during crushing, reducing the risk of hammer breakage and improving equipment reliability and safety. Different combinations can be selected based on factors such as the actual operating environment, material type, material properties, and crushing requirements, thereby expanding the crusher's applicability.
[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in this embodiment, the annular hammer body 100 is provided with three, four, five, or six hammer heads 200. The number of carbide blocks 300 on the hammer heads 200 can be one or more; and / or the crushing working surface 201 of the hammer heads 200 is a plane, a polygonal surface, or an arc-shaped surface. Different numbers of hammer heads 200 (e.g., three, four, five, or six) allow the column crusher to adapt to different crushing needs and capacity requirements. More hammer heads 200 can improve crushing efficiency, especially when processing large quantities of material. Annular hammer bodies 100 with different numbers of hammer heads 200 can also be used simultaneously, ensuring that more points of impact are achieved when the material enters the crushing chamber, thereby improving crushing efficiency and capacity. Designing the crushing working surface 201 of the hammer heads 200 as a plane, polygonal surface, or arc-shaped surface optimizes the contact with the material, disperses wear, and extends the service life of the hammer heads 200. Flat hammerheads 200 are suitable for materials requiring fine crushing, while polygonal or arc-shaped hammerheads 200 are suitable for materials requiring a larger crushing ratio. Different hammerhead shapes 200 can provide different crushing methods, such as impact, shearing, or grinding, thereby optimizing the crushing effect. For example, polygonal or arc-shaped hammerheads 200 can provide more complex crushing actions, increasing the chances of material crushing. By rationally designing the number and shape of the hammerheads 200, maintenance costs caused by hammerhead wear or damage can be reduced.
[0046] The column crusher of this embodiment includes the aforementioned column crusher toothed hammer.
[0047] Any matters not covered in this utility model are common knowledge.
[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A toothed hammer for a column crusher, characterized in that, Includes a ring-shaped hammer (100). A hammer head (200) is provided on the outer wall of the annular hammer body (100), and the hammer head (200) is arranged radially along the annular hammer body (100). Multiple hammerheads (200) are arranged at intervals along the circumference of the annular hammer body (100). The hammer (200) has a cemented carbide block (300) embedded in the base of the annular hammer body (100) on the crushing working surface (201) facing the hammer (200). The cemented carbide block (300) has an exposed surface (301) facing the crushing working surface (201) of the hammer (200).
2. The toothed hammer for a column crusher according to claim 1, characterized in that, Each hammerhead (200) is embedded with a cemented carbide block (300), or each hammerhead (200) is embedded with multiple cemented carbide blocks (300), and the multiple cemented carbide blocks (300) are arranged at uniform intervals; The cemented carbide block (300) is provided with a recess (302) on its side. The recess (302) is arranged perpendicular to the surface of the hammer head (200) or inclined to the surface of the hammer head (200). The cemented carbide block (300) is embedded in the base of the hammer head (200) through the recess (302). The retaining grooves (302) on one side of the hammer head (200) are arranged symmetrically or in an array, and / or the retaining grooves (302) on both sides of the hammer head (200) are arranged symmetrically or asymmetrically.
3. The toothed hammer for a column crusher according to claim 1, characterized in that, The carbide blocks (300) are arranged close to the direction of rotation of the hammer (200).
4. The toothed hammer for a column crusher according to claim 1, characterized in that, The exposed end of the cemented carbide block (300) is inclined toward the direction of rotation of the hammer head (200).
5. The toothed hammer for a column crusher according to claim 1, characterized in that, The surface of the exposed surface (301) near the side where the hammer (200) rotates forward is flush with the crushing working surface (201).
6. The toothed hammer for a column crusher according to claim 5, characterized in that, The exposed surface (301) on the side away from the rotating and advancing side of the hammer (200) is arranged in a downward position relative to the crushing working face (201).
7. The toothed hammer for a column crusher according to any one of claims 1 to 6, characterized in that, The number of carbide blocks (300) embedded in each hammerhead (200) may be the same or different; and / or The carbide blocks (300) embedded on each hammerhead (200) may be the same or different in shape; and / or The carbide blocks (300) embedded in each hammerhead (200) may be the same or different in size; and / or The shape of the cemented carbide block (300) is a polygonal cylinder, a polygonal frustum, a polygonal cone, a cylinder, a frustum, a cone, an elliptical cylinder, an elliptical frustum, or an elliptical cone.
8. The toothed hammer for a column crusher according to any one of claims 1 to 6, characterized in that, Each hammerhead (200) is embedded with multiple carbide blocks (300); The spacing between two adjacent carbide blocks (300) on different hammerheads (200) may be the same or different, or The spacing between two adjacent carbide blocks (300) on the hammer head (200) is arranged in a gradually increasing or gradually decreasing manner on different hammer heads (200) in different directions of rotation.
9. The toothed hammer for a column crusher according to any one of claims 1 to 6, characterized in that, The ring-shaped hammer body (100) is provided with three hammer heads (200), four hammer heads (200), five hammer heads (200), or six hammer heads (200); and / or The crushing working surface (201) of the hammer (200) is a plane, a broken line surface or an arc surface.
10. A column crusher, characterized in that, The toothed hammer for a column crusher includes any one of claims 1 to 9.