Novel hammer head for crusher

Abstract

The utility model relates to a novel hammerhead for a crusher, which comprises a connector rotatably sleeved on a hammer pin, the side surface of the connector is connected with a hammer handle, and the assembling end of the hammer handle far away from the connector is connected with a hammer body in a transverse inserting and sleeving manner. The first end of the hammer body is provided with a clamping groove which is matched with the assembling end of the hammer handle and is through in one side, and a limiting nut plate which can be connected with a screw penetrating through the handle body of the hammer handle to limit the connection state of the hammer handle and the hammer body is further slidably inserted into the side face of the hammer handle. An embedding groove pit capable of containing part of the limiting nut plate is further formed in the inner bottom face of the clamping groove. According to the utility model, the assembly contact area can be increased by constructing the staggered tooth surfaces and the concave-convex surfaces, so that the working impact force is dispersed, the friction force of the contact surface is improved, the assembly tightness is improved, meanwhile, the structural strength and durability of the hammer handle are improved, and the service life of the hammer handle is prolonged by arranging the detachable independent connection limiting structural member.

Description

Technical Field

[0001] This utility model relates to the technical field of hammer crusher components, and in particular to a novel hammer for crushers. Background Technology

[0002] Crusher hammers typically refer to the hammers used in hammer crushers. Hammers are one of the core components of a hammer crusher. They are generally arranged at intervals on a hammer disc driven by the crusher rotor, and directly impact the material during high-speed operation, thus crushing the material into suitable particle sizes. Hammer crushers have good resistance to mechanical and thermal shock, a wide range of applications, and can be used in virtually all crushing industries. However, because hammer crushers crush materials by impacting them with high-speed rotating hammers, the impact surfaces of the hammers experience significant wear over time due to the combined effects of high-speed rotation and material impact. This results in high wear on existing hammers, requiring frequent replacement and leading to poor durability.

[0003] Currently, traditional crusher hammers are manufactured using a one-piece molding method, with the hammer body and hammer handle being a single unit. When the hammer body becomes excessively worn, it cannot be replaced individually; the entire hammer head must be disassembled and replaced. This process is difficult to complete and costly, failing to meet the cost reduction and efficiency improvement requirements of industrial production. Furthermore, while some crushers now manufacture the hammer body and hammer handle separately to reduce the size of the replaceable hammer parts, assembling them into a complete hammer head, this allows for replacement only when the hammer body shows significant wear. It also allows for the assembly of different hammer bodies to suit various crushing processes. For example, patent document CN221536852U discloses a wear-resistant hammer for a crusher, including a moving sleeve. The upper end face of the sliding sleeve is provided with a sliding groove. A connecting block is slidably connected to the inner side wall of the sliding groove. Multiple threaded holes are provided on one side of the outer side wall of the connecting block. A threaded block is fixedly connected to one side of the outer side wall of the sliding sleeve. A fixing bolt is threadedly connected to the inner side wall of the threaded block. Oil sealing rings are fixedly connected to both the front and rear ends of the inner side wall of the connecting cavity. An oil inlet is fixedly connected to one side of the connecting block. And patent document CN221514595U discloses an inlaid alloy crusher hammer, including a hammer handle, a fixed base fixedly connected to the upper end of the hammer, a rubber ring fixedly connected to the upper end of the fixed base, a placement seat fixedly connected to the upper end of the rubber ring, mounting grooves are formed on the lower surface of the placement seat and the upper surface of the fixed base, a buffer column is fixedly connected inside the mounting groove, one end of the buffer column is fixedly connected to the end of the rubber ring, a placement groove is formed on the surface of the placement seat, a connecting block is set inside the placement groove, a hammer is fixedly connected to the upper end of the connecting block, and a fixing bolt is threaded inside the connecting block. However, existing split hammerheads typically have multiple threaded holes on the hammer handle to assemble the hammer body and handle with the screw component. The threaded hole structure is highly susceptible to deformation under strong impact during the hammerhead's material crushing process, leading to damage such as stripping of the threads and rendering the hammer handle unusable. In particular, existing hammer handles and hammer bodies usually use a planar butt joint to ensure the accuracy and stability of the screw connection. However, the planar connection lacks a stable structure that mutually limits each other, causing strong shear misalignment forces at the butt joint when subjected to reaction force impact. This results in abnormal deformation of the connecting screw and other components, making disassembly difficult and increasing the overall scrap rate, shortening the service life of structural components and increasing overall production costs. Utility Model Content

[0004] The purpose of this invention is to provide a new type of hammer for crushers that can increase the assembly contact area by constructing staggered tooth surfaces and concave and convex surfaces, thereby dispersing the working impact force and improving the friction of the contact surface and the tightness of the assembly. At the same time, it can improve the structural strength, durability and service life of the hammer handle by setting a detachable independent connecting and limiting structure. This solves the problem that the connection structure of the existing disassembled hammer is easily damaged under the action of impact force, which damages the hammer handle. This leads to the difficulty of disassembly and replacement of the hammer body and the high degree of damage to the hammer handle. It also fails to effectively realize the function of reusing the hammer handle. In addition, due to the high shear strength of the mating surface, the overall structural stability is poor, and it is easy to deform and misalign or loosen the connection under long-term impact.

[0005] The technical solution adopted by this utility model is as follows: a new type of hammer for a crusher, including a connector rotatably sleeved on a hammer pin, a hammer handle connected to the side surface of the connector, and a hammer body connected to the assembly end of the hammer handle away from the connector by a transverse insertion sleeve. The first end of the hammer body has a slot that matches the assembly end of the hammer handle and extends through one side. The side of the hammer handle is also slidably fitted with a limiting nut plate that can be connected to a screw that passes through the handle body to limit the connection state between the hammer handle and the hammer body. Furthermore, an inserting groove that can accommodate part of the limiting nut plate is also provided on the inner bottom surface of the slot.

[0006] According to a preferred embodiment, a plurality of first extended triangular strips are arranged laterally at intervals on the inner bottom surface of the card slot in a manner parallel to its slotting direction, and a semi-circular strip groove parallel to its slotting direction is also provided on the side wall of the card slot.

[0007] According to a preferred embodiment, a second extended triangular strip is provided on the bottom surface of the assembly end of the hammer handle, which is offset from the first extended triangular strip and enables the hammer handle and the hammer body to be connected without gap; a semi-circular protrusion is provided on the side of the assembly end of the hammer handle, which fits into the semi-circular groove.

[0008] According to a preferred embodiment, a trapezoidal insert slot is provided on the side of the hammer handle to connect the limiting nut plate, and a sleeve insertion hole penetrating the hammer handle is also provided on the groove wall of the trapezoidal insert slot.

[0009] According to a preferred embodiment, a buffer sleeve is embedded in the sleeve insertion hole, and the screw is detachably inserted into the buffer sleeve.

[0010] According to a preferred embodiment, the hammer handle is further provided with side triangular pyramids on both sides, which can expand its cross-sectional area and improve the structural strength.

[0011] According to a preferred embodiment, the limiting nut plate includes a trapezoidal insertion plate adapted to the trapezoidal insertion slot and an insertion limiting plate capable of partially inserting into the mounting slot, wherein the insertion limiting plate is connected to the surface of the trapezoidal insertion plate extending to the outside of the trapezoidal insertion slot.

[0012] According to a preferred embodiment, a limiting bar is provided at the edge of the slot opening to help limit the insertion state of the hammer handle and the hammer body.

[0013] According to a preferred embodiment, the end of the insert sleeve of the card slot is provided with a single-sided slot end plate that limits the insertion sleeve distance, and the single-sided slot end plate is provided with a through connection hole that can accommodate the screw. On the side of the through connection hole away from the hammer handle, there is also an expansion slot that can accommodate the screw head of the screw.

[0014] According to a preferred embodiment, the surface of the second end of the hammer body is provided with crushing protrusions of fan-shaped axial cross section at intervals in a manner parallel to the first extended triangular strip, and the impact front end of the hammer body that strikes the ore is also provided with a fan-shaped extension body; a plurality of crushing protrusions are also arrayed on the impact surface of the fan-shaped extension body.

[0015] The beneficial effects of this utility model are:

[0016] This application achieves the detachability of the hammer head by constructing a hammer handle and hammer body that can be plugged into and connected. This allows for the replacement of some structural components as needed, reducing the complexity of disassembly and assembly and maintenance costs. In particular, a limiting nut plate is designed to cooperate with the screw to secure and limit the hammer head after the hammer handle and hammer body are assembled. This makes the hammer handle structurally stronger, its functional outline simpler, and less prone to damage, thus improving its reusability. The hammer handle and hammer body in this application are connected by constructing mutually fitting concave and convex surfaces, effectively improving the tightness of the connection and the bearing strength and impact resistance of the connection area.

[0017] The screw in this application connects to a limiting nut plate embedded in the surface of the hammer handle after passing through the hammer body and hammer handle. This interlocking action effectively limits the connection between the hammer handle and the hammer body. Both the screw and the limiting nut plate are detachable independent components, allowing for individual replacement if they slip or deform due to continuous impact, thus ensuring the integrity of the hammer handle. The second extended triangular strip in this application works in conjunction with the first extended triangular strip to create an undulating toothed mating surface, effectively increasing the area and stability of the mating surface. Furthermore, the mating surface forms an angle with the direction of the impact force, effectively increasing friction and connection strength and stability, while also improving contact tightness. The angled mating surface with the direction of the impact force also effectively disperses the shear impact transmitted by the hammer body, reducing the impact intensity on the screw and limiting nut plate, preventing deformation and slippage of the fasteners, and improving the overall structural stability and service life. The semi-circular convex strip and semi-circular groove provided in this application can further increase the contact area and contact tightness between the hammer handle and the hammer body, thereby further reducing the possibility of relative movement between the hammer handle and the hammer body when subjected to impact, ensuring the stability of the connection between the two and the firmness of the docking, and fully limiting the misaligned shear impact. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a preferred novel hammerhead for a crusher proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a preferred novel hammerhead for a crusher proposed in this utility model at the axis of the screw.

[0020] Figure 3 This is a schematic diagram of the hammer handle of a preferred novel hammerhead for a crusher proposed in this utility model;

[0021] Figure 4 This is a plan view of the connection area between the hammer handle and the limiting nut plate of a preferred novel hammer head for crushers proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the hammer body of a preferred novel hammerhead for a crusher proposed in this utility model;

[0023] Figure 6 This is a plan view of the hammer body of a preferred novel hammerhead for a crusher proposed in this utility model.

[0024] List of reference numerals

[0025] 1: Connector; 2: Hammer handle; 3: Hammer body; 4: Limiting nut plate; 21: Screw; 22: Second extension triangular strip; 23: Semi-circular convex strip; 24: Trapezoidal insertion slot; 25: Sleeve insertion hole; 26: Buffer sleeve; 27: Side wing triangular pyramid; 31: Slot; 32: Embedding groove; 33: First extension triangular strip; 34: Semi-circular strip groove; 35: Crushing convex strip; 36: Fan-shaped extension body; 361: Crushing protrusion; 311: Limiting bar; 312: Single-sided slot end plate; 313: Through connection hole; 314: Extension slot hole; 41: Trapezoidal insertion plate; 42: Insertion limiting plate; 411: Nut hole. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail.

[0028] Furthermore, the technical features described herein, or the steps in all the methods or processes disclosed herein, may be combined in any suitable manner in one or more embodiments, except for mutually exclusive features and / or steps. It will be readily understood by those skilled in the art that the order of steps or operations of the methods relating to the embodiments provided herein may also be altered. Any order in the drawings and embodiments is for illustrative purposes only and does not imply a requirement to follow a particular order unless explicitly stated otherwise.

[0029] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, under reasonable circumstances (without self-contradiction), include both direct and indirect connections (linkages).

[0030] The following is a detailed explanation with reference to the accompanying drawings.

[0031] Example 1

[0032] This application provides a novel hammer for a crusher, which includes a connector 1, a hammer handle 2, a hammer body 3, and a limiting nut plate 4.

[0033] according to Figure 1-6 In one specific embodiment, the connector 1 is rotatably sleeved on a hammer pin mounted on a hammer disc, such that the connectors 1 are spaced apart on the hammer disc. When the hammer disc is driven by the crusher rotor, the connectors 1 can drive the hammer handle 2 and hammer body 3 to rotate, thereby crushing the material by impact. The hammer handle 2 is connected to the side surface of the connector 1. The hammer body 3 is connected to the mounting end of the hammer handle 2 away from the connector 1 via a transverse insertion sleeve. A slot 31, matching the mounting end of the hammer handle 2 and penetrating on one side, is provided at the first end of the hammer body 3. A limiting nut plate 4 is slidably inserted into the side of the hammer handle 2, connecting to a screw 21 penetrating its handle to define the connection state between the hammer handle 2 and the hammer body 3. An insert groove 32, capable of accommodating part of the limiting nut plate 4, is also provided on the inner bottom surface of the slot 31. This application achieves the detachability of the hammer head by constructing a hammer handle 2 and hammer body 3 that can be inserted and connected. This allows for the replacement of some structural components as needed, reducing the complexity of disassembly and assembly and maintenance costs. In particular, a limiting nut plate 4 is designed to cooperate with the screw 21 to tighten and limit the hammer head after the hammer handle 2 and hammer body 3 are assembled. This makes the hammer handle 2 structurally stronger and its functional outline simpler and less prone to damage, improving its reusability. The hammer handle 2 and hammer body 3 are connected by constructing mutually fitting concave and convex surfaces, effectively improving the tightness of the connection and the bearing strength and impact resistance of the connection area.

[0034] Preferably, the connector 1 is a sleeve-shaped pipe body with a certain wall thickness, which can be connected to the hammer handle 2 by welding or integral casting. Specifically, the connector 1 is a conventional sleeve-shaped connector, and its inner wall can be fitted with connecting washers or other structures as needed to ensure assembly stability. Preferably, the bottom of the side triangular pyramid 27 can be adapted to the outer wall contour of the connector 1 and connected to the connector 1, thereby improving the structural stability and strength of the connection between the hammer handle 2 and the connector 1.

[0035] Preferably, a second extended triangular strip 22 is provided on the bottom surface of the mounting end of the hammer handle 2, which is offset from the first extended triangular strip 33 to enable gapless connection between the hammer handle 2 and the hammer body 3. Preferably, a semi-circular protrusion 23 that fits into the semi-circular groove 34 is provided on the side of the mounting end of the hammer handle 2. Preferably, a trapezoidal insertion slot 24 for connecting the limiting nut plate 4 is provided on the side of the hammer handle 2. More preferably, a sleeve insertion hole 25 penetrating the hammer handle 2 is also provided on the groove wall of the trapezoidal insertion slot 24. Preferably, a buffer sleeve 26 is embedded in the sleeve insertion hole 25. Preferably, the screw 21 is detachably inserted into the buffer sleeve 26. Preferably, side wing triangular pyramids 27 that can expand their cross-sectional area to improve structural strength are also provided on both sides of the hammer handle 2. The hammer handle 2 provided in this application can be laterally inserted and connected to the hammer body 3. The direction of the lateral insertion and movement is perpendicular to the direction of the impact force, thereby effectively preventing the impact force during crushing from directly causing the disintegration of the hammer handle 2 and the hammer body 3. The screw 21 provided in this application can connect with the limiting nut plate 4 embedded on the surface of the hammer handle 2 after passing through the hammer body 3 and the hammer handle 2. The mutual cooperation between the screw 21 and the limiting nut plate 4 can effectively limit the connection state between the hammer handle 2 and the hammer body 3. In particular, both the screw 21 and the limiting nut plate 4 are detachable independent structural components. When both of them slip or deform due to continuous impact, they can be replaced separately, effectively ensuring the integrity of the main body of the hammer handle 2. The second extended triangular strip 22 provided in this application can cooperate with the first extended triangular strip 33 to construct an undulating toothed mating surface, thereby effectively increasing the area and stability of the mating surface. In particular, the mating surface can form an angle with the direction of the impact force, effectively increasing the friction of the contact surface, increasing the connection strength and stability of the two, and improving the tightness of the contact. The mating surface at an angle with the direction of the impact force can also effectively disperse the shear impact transmitted by the hammer body 3, effectively reducing the impact intensity on the screw 21 and the limiting nut plate 4, avoiding problems such as deformation and stripping damage of the fasteners, and improving the stability and service life of the overall structure. The semi-circular convex strip 23 and semi-circular groove 34 provided in this application can further increase the contact area and contact tightness between the hammer handle 2 and the hammer body 3, thereby further reducing the possibility of relative movement between the hammer handle 2 and the hammer body 3 when impacted, ensuring the stability of the connection and the firmness of the mating, and fully limiting the misaligned shear impact. Furthermore, when the hammer 3 abuts against the rebounded material and generates a vertical impact force, the semi-circular protrusion 23 and the semi-circular groove 34 ensure the abutment limit perpendicular to the impact direction, thereby improving the stability and strength of the overall plug-in connection.The trapezoidal insert slot 24 provided in this application facilitates the installation and positioning of the limiting nut plate 4. While ensuring the stability of the limiting nut plate 4, it also allows for the individual replacement of the limiting nut plate 4 when the nut hole is damaged or deformed, compromising connection stability. This reduces the size and cost of replacement parts, effectively diminishes the surface limiting structure features of the hammer handle 2, enhances its structural strength, and extends its service life. The buffer sleeve 26 provided in this application can buffer impact forces perpendicular to the axis of the screw 21, preventing the screw 21 from bending and deforming. The buffer sleeve 26 is made of silicone, giving it a certain degree of deformation capability, which prevents rigid impact between the hammer handle 2 and the screw 21. The deformable buffer sleeve 26 allows for quick removal and disassembly even when the screw 21 undergoes slight deformation. The side wing triangular pyramid 27 provided in this application enhances the structural strength of the hammer handle 2, preventing breakage or other damage upon impact.

[0036] Preferably, a plurality of first extended triangular strips 33 are laterally spaced on the inner bottom surface of the slot 31 in a manner parallel to its slotting direction. Preferably, semi-circular grooves 34 parallel to its slotting direction are also provided on the side wall of the slot 31. Preferably, crushing protrusions 35 with an axial cross-section in the shape of a fan are spaced apart on the surface of the second end of the hammer body 3 in a manner parallel to the first extended triangular strips 33. Preferably, the impact front end of the hammer body 3 when striking the ore is also provided with a fan-shaped extension body 36. Preferably, the fan-shaped extension body 36 and the main body of the hammer head 3 are integrally cast. The first extended triangular strips 33 and the second extended triangular strips 22 provided in this application are both inclined protruding structural strips, which ensure the connection stability and integral forming strength between the two and the hammer body 3 and the hammer handle 2, respectively, and their large connection surface and converging protruding contour can reduce the possibility of deformation. The crushing protrusions 35 provided in this application can improve the secondary crushing ability and wear resistance of the hammer body 3 against the impacting material. The fan-shaped extension body 36 provided in this application can increase the volume and area of ​​the impact front end of the hammer body 3, so that it can impact the material more forcefully, with a larger contact area and more stably during rotation, thereby improving the crushing effect and efficiency of the material, and also improving the service life and wear resistance of the hammer body 3.

[0037] Preferably, a limiting bar 311 is provided at the edge of the slot 31 to help limit the insertion state of the hammer handle 2 and the hammer body 3. Preferably, a single-sided slot end plate 312 is provided at the end of the insertion sleeve of the slot 31 to limit the insertion distance. Preferably, a through connection hole 313 for accommodating the screw 21 is provided on the single-sided slot end plate 312. Preferably, an expansion slot 314 for accommodating the screw head of the screw 21 is also provided on the side of the through connection hole 313 away from the hammer handle 2. The slot 31 provided in this application can limit the gapless assembly connection between the hammer handle 2 and the hammer body 3 by insertion sleeve, thereby improving the accuracy, stability and convenience of assembly. In particular, the single-sided slot end plate 312 provided in this application can cooperate with the screw 21 to achieve assembly fastening and limiting while also accommodating the screw 21, preventing the screw head of the screw 21 from being deformed or broken by direct impact from materials.

[0038] Preferably, a plurality of crushing protrusions 361 are arrayed on the impact surface of the fan-shaped extension 36. This application increases the complexity of the surface of the fan-shaped extension 36 by setting crushing protrusions 361, thereby enabling it to more effectively impact materials and drive the materials to move.

[0039] Preferably, the limiting nut plate 4 includes a trapezoidal insertion plate 41 adapted to the trapezoidal insertion slot 24 and an insertion limiting plate 42 capable of partially inserting into the mounting slot 32. More preferably, the insertion limiting plate 42 is connected to the surface of the trapezoidal insertion plate 41 extending to the outside of the trapezoidal insertion slot 24. More preferably, the trapezoidal insertion plate 41 has a nut hole 411 on its surface facing the hammer handle 2, which is coaxial with the sleeve insertion hole 25. The insertion limiting plate 42 provided in this application can be inserted into the mounting slot 32 of the hammer body 3, thereby restricting the relative movement of the hammer body 3 along the insertion direction to ensure the stability of the insertion connection.

[0040] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A novel hammer for a crusher, comprising a connector (1) rotatably fitted onto a hammer pin, wherein a hammer shank (2) is connected to the side surface of the connector (1), characterized in that, The hammer handle (2) is connected to the hammer body (3) at its assembly end away from the connector (1) via a transverse insert, wherein, The first end of the hammer body (3) is provided with a slot (31) that matches the mounting end of the hammer handle (2) and extends through one side. The side of the hammer handle (2) is also slidably fitted with a limiting nut plate (4) that can be connected to the screw (21) that passes through its handle body to limit the connection state between the hammer handle (2) and the hammer body (3). Furthermore, an inserting groove (32) that can accommodate part of the limiting nut plate (4) is also provided on the inner bottom surface of the slot (31).

2. The novel hammerhead for a crusher as described in claim 1, characterized in that, A plurality of first extended triangular strips (33) are arranged laterally at intervals on the inner bottom surface of the card slot (31) in a manner parallel to its slotting direction, and a semi-circular strip groove (34) parallel to its slotting direction is also provided on the side wall of the card slot (31).

3. The novel hammerhead for a crusher as described in claim 2, characterized in that, A second extended triangular strip (22) is provided on the bottom surface of the assembly end of the hammer handle (2) to be arranged in a staggered manner with the first extended triangular strip (33) so as to enable the hammer handle (2) and the hammer body (3) to be connected without gap. The side of the mounting end of the hammer handle (2) is provided with a semi-circular protrusion (23) that matches the semi-circular groove (34).

4. The novel hammerhead for a crusher as described in claim 3, characterized in that, A trapezoidal insert slot (24) is provided on the side of the hammer handle (2) to connect the limiting nut plate (4), and a sleeve insertion hole (25) penetrating the hammer handle (2) is also provided on the groove wall of the trapezoidal insert slot (24).

5. The novel hammerhead for a crusher as described in claim 4, characterized in that, A buffer sleeve (26) is embedded in the sleeve insertion hole (25), and the screw (21) is detachably inserted into the buffer sleeve (26).

6. The novel hammerhead for a crusher as described in claim 5, characterized in that, The hammer handle (2) is also provided with side triangular pyramids (27) on both sides, which can expand its cross-sectional area and improve the structural strength.

7. The novel hammerhead for a crusher as described in claim 6, characterized in that, The limiting nut plate (4) includes a trapezoidal insertion plate (41) adapted to the trapezoidal insertion slot (24) and an insertion limiting plate (42) capable of partially inserting into the mounting slot (32), wherein, The insertion limiting plate (42) is connected to the surface of the trapezoidal insertion plate (41) extending to the outside of the trapezoidal insertion slot (24).

8. The novel hammerhead for a crusher as described in claim 7, characterized in that, A limiting bar (311) is provided at the edge of the slot (31) to help limit the insertion state of the hammer handle (2) and the hammer body (3).

9. The novel hammerhead for a crusher as described in claim 8, characterized in that, The slot (31) has a single-sided slot end plate (312) at the end of the insertion sleeve that limits the insertion sleeve distance. The single-sided slot end plate (312) has a through connection hole (313) that can accommodate the screw (21). On the side of the through connection hole (313) away from the hammer handle (2), there is also an expansion slot hole (314) that can accommodate the screw head of the screw (21).

10. The novel hammerhead for a crusher as described in claim 9, characterized in that, The surface of the second end of the hammer (3) is provided with crushing protrusions (35) with an axial cross section in a manner parallel to the first extended triangular strip (33), and the impact front end of the hammer (3) striking the ore is also provided with a fan-shaped extension body (36). The impact surface of the fan-shaped extension (36) is also provided with a number of crushing protrusions (361).

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