Mine crusher high wear-resistant hammer head casting

Abstract

The utility model discloses a kind of high wear-resisting hammer head castings of mine crusher, it relates to mine crusher technical field, to solve the structure of the hammer head of existing crusher lacking convenient disassembly and installation, once damage needs to tear open entire equipment to the integral replacement of damaged hammer head, it is troublesome to also increase maintenance cost problem, its technical scheme main point is including first hammer head, the center fixed connection of first hammer head inside has limit block, the outside of first hammer head is reserved with clamping groove and first threaded hole, the inside of first hammer head is provided with second hammer head, the inside of first hammer head is provided with through-hole, one side of second hammer head outside is reserved with mounting groove, the other side of second hammer head outside is reserved with limit slot, the inside of second hammer head is provided with identical through-hole. Reach the effect of convenient installation use and saving maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of mining crusher technology, and in particular to a high wear-resistant hammer casting for a mining crusher. Background Technology

[0002] Mining crushers are specialized equipment used to crush large pieces of ore or materials into smaller particles. They are widely used in mining, metallurgy, building materials, highways, railways, water conservancy and other fields. They are mainly composed of components such as casing, rotor, hammers, and liners. The high-speed rotating rotor impacts, compresses and bends the material to achieve crushing. Repeated strong impacts will cause micro-cracks to form on the surface and internal structure of the hammers. The material gradually fatigues, hardens and becomes brittle, eventually peeling off or breaking. The broken or detached hammers may damage the liners, grates (screen plates) in the crushing chamber, or even damage the rotor itself, causing more serious equipment failures and longer downtime.

[0003] The existing technical solutions mentioned above have the following drawbacks: the existing crusher hammers lack a structure that facilitates easy disassembly and installation. Once damaged, the entire equipment needs to be disassembled and the damaged hammers replaced as a whole, which is troublesome and increases maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a high wear-resistant hammer casting for a mining crusher.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high wear-resistant hammer casting for a mining crusher includes a first hammer, a limiting block fixedly connected to the center inside the first hammer, a slot and a first threaded hole reserved on the outer side of the first hammer, a second hammer inside the first hammer, a through hole opened inside the first hammer, an installation groove reserved on one side of the outer side of the second hammer, a limiting groove reserved on the other side of the outer side of the second hammer, and the same through hole opened inside the second hammer.

[0007] By adopting the above technical solution, the original one-piece hammerhead is designed into two parts. Through the splicing and combination between the first hammerhead and the second hammerhead, the broken part of the hammerhead can be replaced in time. Previously, the one-piece structure had to be replaced as a whole once it was damaged, which made the equipment maintenance cost too high.

[0008] Furthermore, a locking block is engaged inside the slot, and a second threaded hole is provided inside the locking block. A connecting rod is fixedly connected to the outside of the locking block, and an external thread and a nut are provided on the outside of the connecting rod.

[0009] By adopting the above technical solution, after the second hammer head and the first hammer head are inserted and installed, the insertion rod is passed through the through hole inside the two hammer heads, and then the connecting rod is locked and fixed by the nut.

[0010] Furthermore, a protective shell is installed on the outer side of the second hammer head, a countersunk hole is reserved on the outer side of the protective shell, a bolt is inserted into the inside of the countersunk hole, an mounting block is fixedly connected to the inner side of the protective shell, and a crushing tooth is fixedly connected to the outer side of the protective shell.

[0011] By adopting the above technical solution, a protective shell is added to the outside of the second hammer to protect the hammer. At the same time, crushing teeth are added to improve crushing efficiency. The structure is fixed by the interlocking between the mounting block and the mounting groove, and then by bolts.

[0012] Furthermore, the limiting block and the limiting groove are engaged, the second hammer head is engaged inside the first hammer head, the connecting rod extends through the through hole to the outside of the first hammer head, the external thread and the nut are threadedly connected, and multiple crushing teeth are provided.

[0013] By adopting the above technical solutions, installation and assembly are convenient, making it easier to use.

[0014] Furthermore, there are multiple mounting blocks and mounting slots at equal intervals, and the mounting blocks and mounting slots are engaged and connected. The first threaded hole and the second threaded hole are the same size and have the same specifications. There are two countersunk holes and two bolts. One bolt passes through a countersunk hole and extends into the interior of the first threaded hole and is threadedly connected to the first threaded hole. The other bolt passes through another countersunk hole and extends into the interior of the second threaded hole and is threadedly connected to the second threaded hole.

[0015] By adopting the above technical solution, the protective shell is locked and fixed with bolts, making the overall structure easy to disassemble and replace, thus reducing maintenance costs.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] The design incorporates a first hammerhead, a second hammerhead, a connecting rod, a protective shell, and crushing teeth. The original integrated structure has been improved into a modular design, with the second hammerhead installed inside the first hammerhead and secured by the connecting rod and nuts. A protective shell is then added to the outside of the second hammerhead, installed via a snap-fit ​​connection and secured with bolts. The addition of crushing teeth improves crushing efficiency, and the overall structure is easy to assemble and disassemble. For future maintenance, only damaged parts of the hammerhead need to be replaced, resulting in convenient installation and use and reduced maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the protective shell of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the first hammerhead of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the second hammerhead of this utility model.

[0023] In the diagram, 1. First hammer; 2. Limiting block; 3. Slot; 4. First threaded hole; 5. Second hammer; 6. Through hole; 7. Mounting slot; 8. Locking block; 9. Second threaded hole; 10. Connecting rod; 11. External thread; 12. Nut; 13. Protective shell; 14. Countersunk hole; 15. Bolt; 16. Mounting block; 17. Crushing tooth; 18. Limiting slot. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1-5 A high wear-resistant hammerhead casting for a mining crusher includes a first hammerhead 1, with a limiting block 2 fixedly connected to the center inside the first hammerhead 1. A groove 3 and a first threaded hole 4 are pre-drilled on the outer side of the first hammerhead 1. A second hammerhead 5 is disposed inside the first hammerhead 1. A through hole 6 is opened inside the first hammerhead 1. An installation groove 7 is pre-drilled on one side of the outer side of the second hammerhead 5, and a limiting groove 18 is pre-drilled on the other side of the outer side of the second hammerhead 5. The same through hole 6 is opened inside the second hammerhead 5. A locking block 8 is engaged inside the groove 3. A second threaded hole 9 is opened inside the locking block 8. A connecting rod 10 is fixedly connected to the outer side of the locking block 8. An external thread 11 and a nut 12 are provided on the outer side of the connecting rod 10. A protective shell 13 is installed on the outer side of the second hammerhead 5. The outer side of the protective shell 13 has a countersunk hole 14, and a bolt 15 is inserted into the countersunk hole 14. The inner side of the protective shell 13 is fixedly connected to the mounting block 16, and the outer side of the protective shell 13 is fixedly connected to the crushing teeth 17. The original one-piece hammer head is designed into two parts. By splicing and combining the first hammer head 1 and the second hammer head 5, the damaged part of the hammer head can be replaced in time. Previously, the one-piece structure had to be replaced as a whole once it was damaged, which made the equipment maintenance cost too high. By adding a protective shell 13 to the outside of the second hammer head 5, the protective shell 13 protects the hammer head, and at the same time, the crushing teeth 17 are added to improve the crushing efficiency. The structure is fixed by the engagement between the mounting block 16 and the mounting groove 7, and then by the bolt 15.

[0026] like Figure 1-5 As shown, the limiting block 2 and the limiting groove 18 are engaged and connected. The second hammer head 5 is engaged and connected inside the first hammer head 1. The connecting rod 10 extends through the through hole 6 to the outside of the first hammer head 1. The external thread 11 and the nut 12 are threadedly connected. Multiple crushing teeth 17 are provided. Multiple mounting blocks 16 and mounting grooves 7 are provided at equal intervals. The mounting blocks 16 and mounting grooves 7 are engaged and connected. The first threaded hole 4 and the second threaded hole 9 are the same size and have the same specifications. Two countersunk holes 14 and two bolts 15 are provided. One bolt 15 extends through one countersunk hole 14 to the inside of the first threaded hole 4 and is threadedly connected to the first threaded hole 4. The other bolt 15 extends through another countersunk hole 14 to the inside of the second threaded hole 9 and is threadedly connected to the second threaded hole 9.

[0027] The implementation principle of this embodiment is as follows: The second hammer head 5 is engaged with the inside of the first hammer head 1, and the internal limiting block 2 and limiting groove 18 are engaged to improve the stability of the connection. Then, the connecting rod 10 is passed through the through hole 6 inside the two hammer heads and locked and fixed by the nut 12 to connect and fix the two hammer heads. Then, the protective shell 13 is engaged and connected by the mounting block 16 and the mounting groove 7 on the outside of the second hammer head 5. Finally, the protective shell 13 is locked and fixed by the bolt 15. The overall structure is assembled. When replacing it later, only the damaged part of the hammer head at the breaking end needs to be replaced, that is, the second hammer head 5 or the protective shell 13 needs to be replaced. It is not necessary to replace the whole structure, thus reducing maintenance costs.

[0028] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high wear-resistant hammerhead casting for a mining crusher, comprising a first hammerhead (1), characterized in that: The first hammer head (1) has a fixed connection to the center of the inner part of the limiting block (2). The outer side of the first hammer head (1) has a slot (3) and a first threaded hole (4). The first hammer head (1) has a second hammer head (5) inside. The first hammer head (1) has a through hole (6) inside. The outer side of the second hammer head (5) has a mounting groove (7) and the other side of the second hammer head (5) has a limiting groove (18). The second hammer head (5) has the same through hole (6) inside.

2. The high wear-resistant hammerhead casting for a mining crusher according to claim 1, characterized in that: The slot (3) is internally connected to a card block (8), the card block (8) has a second threaded hole (9) inside, and a connecting rod (10) is fixedly connected to the outside of the card block (8). The connecting rod (10) has an external thread (11) and a nut (12) on its outside.

3. The high wear-resistant hammerhead casting for a mining crusher according to claim 2, characterized in that: The second hammer (5) is fitted with a protective shell (13) on its outer side. The protective shell (13) has a countersunk hole (14) on its outer side. A bolt (15) is inserted into the countersunk hole (14). An installation block (16) is fixedly connected to the inner side of the protective shell (13). A crushing tooth (17) is fixedly connected to the outer side of the protective shell (13).

4. The high wear-resistant hammerhead casting for a mining crusher according to claim 3, characterized in that: The limiting block (2) and the limiting groove (18) are engaged and connected. The second hammer head (5) is engaged and connected inside the first hammer head (1). The connecting rod (10) extends through the through hole (6) to the outside of the first hammer head (1). The external thread (11) and the nut (12) are threaded together. The crushing teeth (17) are provided in multiple ways.

5. The high wear-resistant hammerhead casting for a mining crusher according to claim 3, characterized in that: The mounting blocks (16) and mounting grooves (7) are provided at equal intervals. The mounting blocks (16) and mounting grooves (7) are engaged and connected. The first threaded hole (4) and the second threaded hole (9) are the same size and have the same specifications. There are two countersunk holes (14) and two bolts (15). One bolt (15) passes through one countersunk hole (14) and extends into the interior of the first threaded hole (4) and is threadedly connected to the first threaded hole (4). The other bolt (15) passes through another countersunk hole (14) and extends into the interior of the second threaded hole (9) and is threadedly connected to the second threaded hole (9).

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