High-chromium cast iron combined hammer head

Abstract

The utility model relates to high chromium cast iron hammer head field especially high chromium cast iron combined hammer head, including hammer head body, still including the mounting block, the upper end of hammer head body is provided with the hammer handle, the bottom of hammer handle is provided with the mounting block, the mounting block is connected with hammer head body swingingly, the inside swingingly connected of hammer head body has the fixed link, the fixed link is connected with mounting block swingingly, the rear position of fixed link's outer surface is provided with gasket no.

Description

Technical Field

[0001] This utility model relates to the field of high-chromium cast iron hammerheads, and more particularly to high-chromium cast iron composite hammerheads. Background Technology

[0002] High-chromium cast iron hammerheads are wear-resistant hammerheads manufactured using high-chromium casting. They possess extremely high hardness and excellent wear resistance, and are widely used in crushing equipment in industries such as mining, cement, and building materials. The high-hardness carbides in their microstructure give the hammerheads outstanding wear resistance, while heat treatment processes such as quenching and tempering optimize the toughness of the matrix, balancing wear resistance and impact resistance. Their service life is significantly longer than that of ordinary high-manganese steel hammerheads, making them suitable for material crushing operations under medium to high impact conditions.

[0003] Although high-chromium cast iron hammerheads have excellent wear resistance, their high hardness and brittleness make them difficult to disassemble and replace if they suffer severe wear or breakage after prolonged use. This is especially true under harsh working conditions, which makes the replacement process time-consuming and laborious, sometimes requiring cutting or strong hammering, increasing maintenance costs and downtime. In addition, localized wear is difficult to repair by welding.

[0004] Therefore, in view of the problem that although the high-chromium cast iron hammerhead has excellent wear resistance, its high hardness and brittleness make it difficult to disassemble and replace if it suffers severe wear or breakage after long-term use, especially under harsh working conditions, which leads to time-consuming and laborious replacement process, increasing maintenance costs and downtime, a high-chromium cast iron modular hammerhead can be designed. Utility Model Content

[0005] To overcome the problem that although high-chromium cast iron hammerheads have excellent wear resistance, their high hardness and brittleness make them difficult to disassemble and replace after prolonged use if they suffer severe wear or breakage, especially under harsh working conditions. This results in a time-consuming and labor-intensive replacement process, which may even require cutting or strong hammering, increasing maintenance costs and downtime.

[0006] The technical solution of this utility model is as follows: a high-chromium cast iron combined hammer head, including a hammer head body; and a mounting block. A hammer handle is provided at the upper end of the hammer head body, and a mounting block is provided at the bottom of the hammer handle. The mounting block is movably connected to the hammer head body. A fixing rod is movably connected inside the hammer head body. The fixing rod is movably connected to the mounting block. A first washer is provided at the rear position of the outer surface of the fixing rod, and a second washer is movably connected at the front position of the outer surface of the fixing rod. A threaded groove is opened on the outer surface of the fixing rod, and a bolt is threadedly connected to the outer surface of the fixing rod. A buffer pad is provided on the outer surface of the fixing rod.

[0007] Preferably, when it is necessary to replace the high-chromium cast iron hammerhead body, the hammerhead body is inserted into the mounting block, and a fixing rod is used to fix it through the two. The fixing rod is then tightened with bolt one. At the same time, during the installation process, shims one and two made of hard alloy steel are used for elastic buffering to reduce the axial impact of the limiting rod. In addition, a buffer pad made of polyurethane elastomer material is used to absorb shock and reduce noise, thereby effectively reducing the collision noise between the fixing rod and the hammerhead body. This ultimately achieves a quick and safe replacement of the hammerhead body, solving the problem that due to the high hardness and brittleness of this material, if severe wear or breakage occurs after long-term use, disassembly is often difficult and replacement is time-consuming and laborious. This reduces maintenance costs and downtime.

[0008] Preferably, a rotating block is fixedly connected to the bottom of the hammer handle, and the rotating block is rotatably connected to the mounting block.

[0009] Preferably, the internal movable connection of the rotating block has a limit rod, which is movably connected to the mounting block.

[0010] Preferably, the outer surface of the limiting rod is threaded with a bolt, and the bottom of the hammer body is movably connected with a replacement plate.

[0011] Preferably, the hammerhead body has an internally movable connecting rod, which is fixedly connected to the replacement plate.

[0012] Preferably, a limiting plate is fixedly connected to the outer surface of the connecting rod, and the limiting plate is movably connected to the hammer head body.

[0013] Preferably, the material used for gasket one and gasket two is spring steel, and the material used for the replacement plate is cemented carbide steel.

[0014] The beneficial effects of this utility model are:

[0015] When it is necessary to replace the high-chromium cast iron hammerhead body, insert the hammerhead body into the mounting block, fix it with a fixing rod passing through both, and tighten the fixing rod with bolt one. At the same time, during the installation process, use shims one and two made of hard alloy steel for elastic buffering to reduce the axial impact of the limit rod. Combined with the buffer pad made of polyurethane elastomer material to absorb shock and reduce noise, the collision noise between the fixing rod and the hammerhead body is effectively reduced. This allows for quick and safe replacement of the hammerhead body, solving the problem that due to the high hardness and brittleness of this material, if severe wear or breakage occurs after long-term use, disassembly is often difficult and replacement is time-consuming and laborious, thus reducing maintenance costs and downtime. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional side sectional view of the present invention.

[0018] Figure 3 The diagram shown is a three-dimensional front cross-sectional view of the present invention.

[0019] Figure 4 The diagram shown is a three-dimensional lower cross-sectional view of the present invention.

[0020] Figure 5 The diagram shown is a three-dimensional lower cross-sectional view of the connecting rod of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Hammer head body; 2. Hammer handle; 3. Mounting block; 4. Rotating block; 5. Limiting rod; 6. Bolt 1; 7. Fixing rod; 8. Shim 1; 9. Shim 2; 10. Bolt 2; 11. Buffer pad; 12. Replacement plate; 13. Connecting rod; 14. Bolt 3; 15. Limiting plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-3 This utility model provides an embodiment: a high-chromium cast iron combined hammer head includes a hammer head body 1; it also includes a mounting block 3. A hammer handle 2 is provided at the upper end of the hammer head body 1, and a mounting block 3 is provided at the bottom of the hammer handle 2. The mounting block 3 is movably connected to the hammer head body 1. A fixing rod 7 is movably connected inside the hammer head body 1. The fixing rod 7 is movably connected to the mounting block 3. A first washer 8 is provided at the rear position of the outer surface of the fixing rod 7, and a second washer 9 is movably connected at the front position of the outer surface of the fixing rod 7. A threaded groove is formed on the outer surface of the fixing rod 7, and a second bolt 10 is threadedly connected to the outer surface of the fixing rod 7. A buffer pad 11 is provided on the outer surface of the fixing rod 7. When it is necessary to replace the high-chromium cast iron hammer head... When installing the hammer body 1, insert the hammer body 1 into the mounting block 3, and fix it by passing the fixing rod 7 through the two. Then, lock the fixing rod 7 with bolt 6. At the same time, during the installation process, use shims 8 and 9 made of hard alloy steel for elastic buffering to reduce the axial impact of the limit rod 5. Combined with the shock absorption and noise reduction of the buffer pad 11 made of polyurethane elastomer material, the collision noise between the fixing rod 7 and the hammer body 1 is effectively reduced. Finally, the hammer body 1 can be replaced quickly and safely. This solves the problem that due to the high hardness and brittleness of the material, if it is severely worn or broken after long-term use, it is often difficult to disassemble and time-consuming to replace. This reduces maintenance costs and downtime.

[0024] Please see Figures 2-5In this embodiment, a rotating block 4 is fixedly connected to the bottom of the hammer handle 2. The rotating block 4 is rotatably connected to the mounting block 3. The mounting block 3 rotates on the rotating block 4, allowing the hammer head body 1 to be used in a rotating direction. This prevents excessive wear on some parts of the hammer head body 1, which would be detrimental to its long-term use. A limiting rod 5 is movably connected inside the rotating block 4. The limiting rod 5 is movably connected to the mounting block 3. The limiting rod 5 fixes the position between the rotating block 4 and the mounting block 3, allowing it to be used in a rotating direction of the hammer head body 1. At the same time, a bolt 6 is used to fix the position of the limiting rod 5. The outer surface of the limiting rod 5 is threaded with a bolt 6. A replacement plate 12 is movably connected to the bottom of the hammer head body 1. The hard alloy steel replacement plate 12 at the bottom of the hammer head body 1 is used under certain extreme conditions, such as when the material to be processed has high hardness. This can reduce the wear of the hammer head body 1. At the same time, a dovetail groove is provided at the connection between the replacement plate 12 and the hammer head body 1 to improve the stability of the connection.

[0025] Please see Figures 1-5 In this embodiment, a connecting rod 13 is movably connected inside the hammer body 1. The connecting rod 13 is fixedly connected to the replacement plate 12. The connecting rod 13 is used to fix the position of the replacement plate 12 and the hammer body 1. A limiting plate 15 is fixedly connected to the outer surface of the connecting rod 13. The limiting plate 15 is movably connected to the hammer body 1. Two bolts 14 are threadedly connected to the outer surface of the connecting rod 13. The limiting plate 15 is used to strengthen the stability of the connection and fix the two bolts 14 to the connecting rod 13 to prevent loosening and slippage. The first shim 8 and the second shim 9 are made of spring steel. The replacement plate 12 is made of hard alloy steel. The shims use hard alloy steel for elastic buffering to reduce the axial impact of the limiting rod 5. At the same time, the buffer pad 11 uses polyurethane elastomer material, which can absorb shock and reduce the collision noise between the fixed rod 7 and the hammer body 1.

[0026] During operation, the mounting block 3 rotates on the rotating block 4, allowing the hammer body 1 to rotate in any direction. This prevents excessive wear on certain parts of the hammer body 1, which would be detrimental to its long-term use. The limiting rod 5 fixes the position between the rotating block 4 and the mounting block 3, allowing the hammer body 1 to rotate in any direction. The limiting rod 5 is also secured in place by bolts 6. The hard alloy steel replacement plate 12 at the bottom of the hammer body 1 is used under extreme conditions, such as when processing materials with high hardness, to reduce wear on the hammer body 1. A dovetail groove is provided at the connection between the replacement plate 12 and the hammer body 1 to improve the stability of the connection. The connecting rod 13 is used to fix the replacement plate 12 to the hammer. At the position of the main body 1, the outer surface of the connecting rod 13 is threaded with two bolts 14. The limiting plate 15 is used to strengthen the stability of the connection and fix the two bolts 14 to the connecting rod 13. The two bolts 14 prevent loosening and slippage. When it is necessary to replace the hammer body 1, the hammer body 1 is inserted into the mounting block 3. Then, the fixing rod 7 is passed through the middle of the mounting block 3 and the hammer body 1 to fix the mounting block 3 and the hammer body 1. At the same time, the fixing rod 7 is locked with bolt 6. The first shim 8 and the second shim 9 use spring steel elastic buffer to reduce the axial impact of the limiting rod 5. At the same time, the buffer pad 11 uses polyurethane elastomer material, which can absorb shock and reduce the collision noise between the fixing rod 7 and the hammer body 1.

[0027] Through the above steps, when it is necessary to replace the hammer body 1, insert the hammer body 1 into the mounting block 3, and then use the fixing rod 7 to pass through the middle of the mounting block 3 and the hammer body 1 to fix the mounting block 3 and the hammer body 1. At the same time, use bolt 6 to lock the fixing rod 7. The first shim 8 and the second shim 9 use spring steel elastic buffer to reduce the axial impact of the limit rod 5. Meanwhile, the buffer pad 11 uses polyurethane elastomer material, which can absorb shock and reduce the collision noise between the fixing rod 7 and the hammer body 1. This solves the problem that although high chromium cast iron hammers have excellent wear resistance, they are difficult to disassemble when they are replaced due to their high hardness and brittleness. This is especially true under harsh working conditions, which leads to a time-consuming and laborious replacement process, increasing maintenance costs and downtime.

Claims

1. A high-chromium cast iron composite hammerhead, comprising a hammerhead body (1); characterized in that: It also includes an installation block (3), a hammer handle (2) is provided at the upper end of the hammer body (1), an installation block (3) is provided at the bottom of the hammer handle (2), the installation block (3) is movably connected to the hammer body (1), a fixing rod (7) is movably connected inside the hammer body (1), the fixing rod (7) is movably connected to the installation block (3), a gasket (8) is provided at the rear position of the outer surface of the fixing rod (7), a gasket (9) is movably connected at the front position of the outer surface of the fixing rod (7), a threaded groove is provided on the outer surface of the fixing rod (7), a bolt (10) is threadedly connected to the outer surface of the fixing rod (7), and a buffer pad (11) is provided on the outer surface of the fixing rod (7).

2. The high-chromium cast iron composite hammerhead according to claim 1, characterized in that: A rotating block (4) is fixedly connected to the bottom of the hammer handle (2), and the rotating block (4) is rotatably connected to the mounting block (3).

3. The high-chromium cast iron composite hammerhead according to claim 2, characterized in that: The internal movable connection of the rotating block (4) is limited by a limit rod (5), which is movably connected to the mounting block (3).

4. The high-chromium cast iron composite hammerhead according to claim 3, characterized in that: The outer surface of the limiting rod (5) is threaded with a bolt (6), and the bottom of the hammer body (1) is movably connected with a replacement plate (12).

5. The high-chromium cast iron composite hammerhead according to claim 1, characterized in that: The hammer body (1) has a connecting rod (13) inside, which is fixedly connected to the replacement plate (12).

6. The high-chromium cast iron composite hammerhead according to claim 5, characterized in that: A limiting plate (15) is fixedly connected to the outer surface of the connecting rod (13). The limiting plate (15) is movably connected to the hammer body (1). Two bolts (14) are threadedly connected to the outer surface of the connecting rod (13).

7. The high-chromium cast iron composite hammerhead according to claim 1, characterized in that: The material used for gasket 1 (8) and gasket 2 (9) is spring steel, and the material used for replacement plate (12) is hard alloy steel.

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