A hammer head for a crusher which is easily replaceable

Abstract

The utility model discloses a kind of hammer head of crusher convenient to replace, it is related to the field of crusher, and hammer head can be reliably fixed in high-speed rotation process by the cooperation of the cooperation of split design and chuck and chuck, it is convenient to replace simultaneously.The specific performance is that during installation process, positioning block and L-shaped groove cooperate after sub-clamping portion inserts female clamping portion, realize quick temporary fixing, installation screw is subsequently limited and provides connecting force, so that structure can withstand larger centrifugal force without loosening, avoid the problem that hammer head falls off due to screw loosening in traditional mode.Simultaneously, the design simplifies installation and disassembly process, improves reliability and security, enhances the replaceability of hammer head, suitable for long-term use and convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of crushers, and in particular to a crusher hammer that is easy to replace. Background Technology

[0002] In industries such as mining, building materials, and metallurgy, crushers are crucial equipment for crushing ores or stones. Their efficiency and safety directly impact production costs and operational safety. Traditional crusher hammers are typically a single, integral structure, mounted on a hammer frame and secured by locking pins. During high-speed rotation, they withstand significant centrifugal forces. Prolonged operation leads to hammer wear, requiring replacement by removing the locking pins and disassembling multiple hammers sequentially. This process is cumbersome and prone to hammer falls during disassembly and installation, posing a safety hazard. Furthermore, in traditional installation methods, hammer fixation relies primarily on screws to withstand centrifugal forces; loose screws can cause hammers to detach or damage the equipment, reducing operational reliability and maintenance efficiency. Therefore, current technology still has significant shortcomings in terms of rapid hammer replacement, structural reliability, and operational safety. Utility Model Content

[0003] The purpose of this invention is to provide a crusher hammer that is easy to replace, in order to solve the problem of poor stability of traditional quick-disassembly hammer structures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a replaceable crusher hammer, comprising a hammer frame, wherein the hammer frame includes a spool and a plurality of dividing discs disposed on its surface; Several hammerheads are distributed in a ring between two adjacent dividing discs; The hammer head includes a separate clamp and a clamp. The clamp includes symmetrically arranged positioning blocks. The inner wall of the clamp is symmetrically provided with L-shaped grooves that limit the misalignment of the matching positioning blocks. The chuck and the chuck are both equipped with two mounting screws that limit the positioning blocks.

[0005] As a further description of the above technical solution: the hammer frame also includes a number of leveling blocks for maintaining parallel alignment between the two dividing discs, the leveling blocks being staggered between the circular rows of hammer heads.

[0006] As a further description of the above technical solution: the inner wall of the dividing disc is fixed with a flower sleeve, the flower sleeve is in spline fit with the surface of the flower shaft, and the two ends of the flower shaft are squeezed and limited by the sliding sleeve.

[0007] As a further description of the above technical solution: both ends of the flower shaft are fixed with transmission end shafts, and several dividing discs are connected by several locking pins for sliding installation of the hammer head.

[0008] As a further description of the above technical solution: the clamp and the clamp head are engaged and slidably clamped on the clamp post.

[0009] As a further description of the above technical solution: the card head also includes a metal block, a female card part is provided on one side of the metal block, the positioning block is symmetrically fixed on both sides of the female card part, and two internal threaded holes are opened on the female card part to engage with the threaded screws.

[0010] As a further description of the above technical solution: the clamp also includes a sub-clamping part, the L-shaped groove is formed on the inner wall of the sub-clamping part, and the sub-clamping part is provided with an outer screw hole for mounting screw sliding.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: This design utilizes a split hammerhead design and the cooperation of the clamp and fixture to reliably fix the hammerhead during high-speed rotation, while also facilitating replacement. Specifically, during installation, the sub-clamp inserts into the female clamp, and the positioning block engages with the L-shaped groove for quick temporary fixation. The mounting screw then provides locking and connection force, enabling the structure to withstand significant centrifugal force without loosening, thus avoiding the problem of hammerhead detachment caused by loose screws in traditional methods. Furthermore, this design simplifies the installation and disassembly process, improves reliability and safety, enhances the replaceability of the hammerhead, and is suitable for long-term use with convenient maintenance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the present invention; Figure 4 This is a three-dimensional schematic diagram of the hammer head of this utility model; Figure 5 This is an exploded schematic diagram of the hammerhead of this utility model.

[0013] Legend: 1. Hammer frame; 11. Transmission end shaft; 12. Floral shaft; 13. Clamping post; 14. Dividing disc; 15. Floral sleeve; 16. Leveling block; 2. Hammer head; 21. Clamp; 211. Sub-clamp part; 212. L-shaped groove; 213. Outer screw hole; 22. Clamping head; 221. Metal block; 222. Female clamp part; 223. Positioning block; 224. Inner screw hole; 23. Mounting screw. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 - Figure 5 As shown, the present invention provides: a replaceable crusher hammer 2, including a hammer frame 1, wherein the hammer frame 1 includes a flower shaft 12 and a plurality of dividing discs 14 disposed on its surface; Several hammerheads 2 are distributed in a ring between two adjacent dividing disks 14; The hammerhead 2 includes a split-mounted clamp head 22 and a clamp 21. The clamp head 22 includes symmetrically arranged positioning blocks 223. The inner wall of the clamp 21 is symmetrically provided with L-shaped grooves 212 that match the positioning blocks 223 and limit their misalignment. The clamp head 22 and the clamp 21 are both equipped with mounting screws 23 that have two limiting positioning blocks 223.

[0016] Specifically, such as Figure 2 As shown, the hammer frame 1 also includes a number of leveling blocks 16 for parallel holding between the two dividing discs 14, and the leveling blocks 16 are staggered between the annular rows of hammer heads 2.

[0017] The leveling block 16 is used to maintain the parallel relationship between the dividing discs 14, ensuring that the hammer frame 1 maintains structural stability during high-speed rotation. The leveling block 16 is staggered between the ring-shaped hammers 2. The staggered arrangement effectively disperses the force, so that each hammer 2 can still maintain its position stability under impact or centrifugal force, while avoiding vibration interference between adjacent hammers 2, improving crushing efficiency and equipment operation safety. The material and shape of the leveling block 16 are optimized to take into account both wear resistance and structural rigidity, ensuring the smooth operation and reliability of the hammer frame 1 during long-term use.

[0018] Specifically, such as Figure 3 As shown, a flower sleeve 15 is fixed to the inner wall of the dividing disc 14. The flower sleeve 15 is splined with the surface of the flower shaft 12, and the two ends of the flower shaft 12 are squeezed and limited by the sliding sleeve.

[0019] The sleeve 15 is precisely fitted with the spline on the surface of the spindle 12 through its inner hole, allowing the dividing disc 14 to rotate synchronously with the spindle 12 and bear torque transmission, ensuring that the dividing disc 14 will not slip relative to the crusher during high-speed operation; at the same time, the two ends of the spindle 12 limit the sleeve by extrusion, ensuring that the sleeve 15 is fixed in the axial direction, enhancing the stability and reliability of the connection between the dividing disc 14 and the spindle 12, thereby maintaining the balance and firmness of the overall structure when the hammer 2 impacts the stone at high speed.

[0020] Specifically, such as Figure 3 As shown, the two ends of the flower shaft 12 are fixed with transmission end shafts 11, and several dividing discs 14 are connected by several locking posts 13 for sliding installation of the hammer head 2. The clamp 21 and the locking head 22 are engaged and slidably clamped on the locking posts 13.

[0021] The two ends of the flower shaft 12 are fixed with transmission end shafts 11, which are used to transmit external power to the flower shaft 12 through the transmission mechanism, so that it drives the dividing disk 14 to rotate, while ensuring the stability and balance of power transmission; several dividing disks 14 are connected by several locking pins 13 for sliding installation of hammer head 2, and the locking pins 13 provide guidance and support for hammer head 2.

[0022] Specifically, such as Figure 5 As shown, the card head 22 also includes a metal block 221. A female card portion 222 is provided on one side of the metal block 221. The positioning block 223 is symmetrically fixed on both sides of the female card portion 222. Two internal threaded holes 224 are provided on the female card portion 222 for threaded engagement with mounting screws 23.

[0023] The metal block 221 has high strength and wear resistance to withstand the force generated by the hammer head 2 during high-speed rotation and stone impact. A female clamping part 222 is provided on one side of the metal block 221. The female clamping part 222 is used to fit and connect with the female clamping part 211 of the clamp 21. The positioning block 223 is symmetrically fixed on both sides of the female clamping part 222 to provide positioning and limiting function when the female clamping part 211 is inserted into the female clamping part 222, ensuring that the clamp head 22 and the clamp 21 maintain a stable position when under force. At the same time, two internal threaded holes 224 are opened on the female clamping part 222, which are threadedly engaged with the mounting screws 23, so that the relative position between the clamp 21 and the clamp head 22 can be fixed by screws during installation, which enhances the connection firmness, so that the entire hammer head 2 assembly can work reliably under high-speed operation and centrifugal force, and facilitates subsequent replacement and maintenance.

[0024] Specifically, such as Figure 5 As shown, the clamp 21 also includes a sub-clamping part 211, the L-shaped groove 212 is formed on the inner wall of the sub-clamping part 211, and the sub-clamping part 211 is provided with an outer screw hole 213 for mounting screw 23 to slide.

[0025] The sub-clamping part 211 is used to achieve a fitting connection with the female clamping part 222 of the clamping head 22. The L-shaped groove 212 is opened on the inner wall of the sub-clamping part 211 to receive the positioning block 223 on the female clamping part 222, so that the clamping head 22 and the clamping fixture 21 can form a stable limiting fit after installation, ensuring that the hammer head 2 will not undergo relative displacement or loosening during high-speed rotation. At the same time, the sub-clamping part 211 is provided with an outer screw hole 213 for the installation screw 23 to pass through and threadedly engage with the inner screw hole 224 of the female clamping part 222, thereby achieving a fixed connection between the sub-clamping part 211 and the female clamping part 222. This ensures that the entire hammer head 2 assembly maintains structural integrity when subjected to centrifugal force and impact force, improving the safety, reliability and maintenance convenience of the crusher.

[0026] In this design, the dividing disc 14 and the locking post 13 form a support, and the leveling block 16 keeps the dividing disc 14 horizontal. Power is input through the transmission shaft 11, causing the flower shaft 12 to rotate. The flower shaft 12, through the flower sleeve 15 on its surface, rotates the dividing disc 14, causing the locking post 13 to prevent the hammer head 2 from rotating at high speed to crush stones. Over time, some hammer heads 2 will wear out and need to be replaced. Traditional designs require removing the locking post 13, causing multiple hammer heads 2 to fall off, replacing the damaged parts, and then reassembling the hammer heads 2. This design addresses this by separating the hammer heads 2. The design of the clamp 21 and the clamp head 22 allows the sub-clamping part 211 of the clamp 21 to be inserted into the positioning block 223 on the inner wall of the female clamping part 222 of the clamp head 22 via the metal block 221. After sliding to the bottom, the positioning block 223 is engaged in the L-shaped groove 212 by the misalignment of the sub-clamping part 211 and the female clamping part 222, which can overcome the load of large centrifugal force. Then, the mounting screw 23 is threaded through the outer screw hole 213 and then threaded into the inner screw hole 224 to fix it. At this time, the mounting screw 23 limits the positioning block 223 and provides the connection force between the clamp 21 and the clamp head 22. This method enables quick temporary fixing during installation by using the L-shaped groove 212 and the positioning block 223 together, facilitating the connection of the mounting screw 23. At the same time, after the L-shaped groove 212 and the positioning block 223 are misaligned, they have a high tensile force, avoiding the centrifugal force acting on the mounting screw 23 in the traditional installation method, which could easily cause the hammer head 2 to detach after loosening. This method has a simple, reliable, practical, stable, and highly replaceable installation structure, making it convenient to use and ensuring safety.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A replaceable crusher hammer (2), comprising a hammer holder (1), characterized in that: The hammer frame (1) includes a flower shaft (12) and a plurality of dividing discs (14) disposed on its surface. Several hammerheads (2) are arranged in a ring between two adjacent dividing disks (14); The hammer (2) includes a split-installed clamp (22) and a clamp (21). The clamp (22) includes symmetrically arranged positioning blocks (223). The inner wall of the clamp (21) is symmetrically provided with L-shaped grooves (212) that match the positioning blocks (223) and limit their misalignment. The clamp (22) and clamp (21) are both equipped with mounting screws (23) for two limiting positioning blocks (223).

2. The easily replaceable crusher hammer (2) according to claim 1, characterized in that, The hammer frame (1) also includes a number of leveling blocks (16) for parallel holding between the two dividing discs (14), the leveling blocks (16) being staggered between the ring-shaped rows of hammer heads (2).

3. The easily replaceable crusher hammer (2) according to claim 1, characterized in that, The inner wall of the dividing disc (14) is fixed with a flower sleeve (15), which is splined with the surface of the flower shaft (12), and the two ends of the flower shaft (12) are squeezed and limited by the sliding sleeve.

4. The easily replaceable crusher hammer (2) according to claim 1, characterized in that, The two ends of the flower shaft (12) are fixed with transmission end shafts (11), and several dividing discs (14) are connected by several locking pins (13) for sliding installation of the hammer head (2).

5. A replaceable crusher hammer (2) according to claim 4, characterized in that, The clamp (21) and the clamp head (22) are engaged and slidably clamped on the clamp post (13).

6. The easily replaceable crusher hammer (2) according to claim 1, characterized in that, The card head (22) also includes a metal block (221), a female card part (222) is provided on one side of the metal block (221), the positioning block (223) is symmetrically fixed on both sides of the female card part (222), and two internal thread holes (224) are provided on the female card part (222) for threaded engagement with the mounting screws (23).

7. The easily replaceable crusher hammer (2) according to claim 1, characterized in that, The clamp (21) also includes a sub-clamp (211), the L-shaped groove (212) is formed on the inner wall of the sub-clamp (211), and the sub-clamp (211) is provided with an outer screw hole (213) for mounting screws (23) to slide.

Images