Lightweight plate hammer of impact crusher

Abstract

The utility model discloses a light-weight plate hammer of an impact crusher. The light-weight plate hammer comprises a plate hammer main body and a sheath, the plate hammer main body is detachably mounted on the crusher, the whole plate hammer main body is of an S-shaped structure, and the plate hammer main body is provided with a first arc structure and a second arc structure; the sheath is detachably mounted on the plate hammer main body; the plate hammer main body is provided with a first mounting space and a second mounting space; the sheath is mounted in the first mounting space; the plate hammer body is detachably mounted on the crusher body through the second mounting space, the plate hammer body is of an S-shaped structure, on the premise that the strength and the wear resistance are met, the overall weight of the plate hammer is reduced through the two grooves, the energy consumption and the operation cost of the crusher are reduced through the lightweight plate hammer body, and the service life of the crusher is prolonged. According to the technical scheme, the problems that a plate hammer of a traditional impact crusher is thick, heavy, high in energy consumption, serious in abrasion and the like are solved.

Description

Technical Field

[0001] This utility model relates to the field of crusher hammer technology, and in particular to a lightweight hammer for an impact crusher. Background Technology

[0002] An impact crusher is a mechanical device that uses impact energy to crush materials. During operation, the rotor rotates at high speed, and the material enters the impact zone of the hammers, where it is crushed by impact. It is then thrown onto the impact device for further crushing, and this process is repeated until the material is crushed to the desired particle size and finally discharged from the outlet. Impact crushers are widely used in various ore crushing, highway construction, cement manufacturing, chemical, and construction industries.

[0003] Traditional impact crushers typically use high-strength, high-manganese steel, high-chromium cast iron, alloy steel, and other wear-resistant materials for their hammers. While these materials offer good impact and wear resistance, the heavy hammer design increases the overall weight of the equipment and raises energy consumption. Furthermore, during crushing, the impact of material on the hammers generates significant vibration and noise, negatively impacting the equipment's stability and lifespan. Wear is particularly severe when crushing hard ores, requiring frequent hammer replacements and increasing operating costs and maintenance workload. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose a lightweight impact crusher hammer, which solves the problems of heavy, energy-intensive, and severely worn impact crusher hammers.

[0005] To achieve this objective, the present invention adopts the following technical solution: a lightweight hammer plate for an impact crusher, wherein the lightweight hammer plate includes a hammer body and a protective sleeve;

[0006] The hammer body is detachably installed on the crusher. The hammer body has an overall S-shaped structure and is provided with a first arc structure and a second arc structure.

[0007] The sheath is detachably installed on the hammer body;

[0008] The hammer body is provided with a first groove and a second groove;

[0009] The first groove is disposed on the top of the hammer body, the first arc structure and the first groove form a first installation space, and the sheath is installed in the first installation space;

[0010] The second groove is provided at the bottom of the hammer body, and the second arc structure and the second groove form a second mounting space. The hammer body is detachably mounted to the crusher body through the second mounting space.

[0011] Furthermore, the first groove and the second groove have the same structure, and both the first groove and the second groove are provided with a mounting part;

[0012] The sheath includes a connecting portion, which is detachably mounted to the mounting portion.

[0013] Furthermore, the sheath also includes a white cast iron body and several semi-cylindrical protrusions;

[0014] Several of the semi-cylindrical protrusions are arranged in parallel at intervals on the working surface of the white cast iron body.

[0015] Furthermore, the lightweight hammer also includes several threaded through holes and several countersunk connecting holes, and the sheath also includes short semi-cylindrical protrusions, which are arranged parallel to the semi-cylindrical protrusions on the working surface of the white cast iron body.

[0016] The threaded through holes are evenly spaced on the hammer body; the white cast iron body is provided with the countersunk connecting holes on both sides near the short semi-cylindrical protrusion.

[0017] The sheath is fixed to the hammer body through the countersunk connection hole and bolts;

[0018] The hammer body is fixed to the crusher through the threaded through hole and bolts.

[0019] Furthermore, each of the countersunk connecting holes and a corresponding threaded through hole are arranged vertically opposite each other, and a screw passes through the countersunk connecting hole and connects with the threaded through hole.

[0020] Furthermore, the lightweight hammer plate also includes a cover, which is fitted into the sinkhole of the platform.

[0021] Furthermore, the lightweight hammer also includes a first buffer structure, which is disposed between the hammer body and the sheath.

[0022] Furthermore, the lightweight hammer also includes a second buffer structure, which is disposed between the hammer body and the crusher body.

[0023] Furthermore, the lightweight hammer also includes reinforcing ribs, which are disposed inside the hammer body.

[0024] Furthermore, a first mark is provided on one side of the hammer body, and a second mark is provided on the other side of the hammer body.

[0025] The technical solution provided by this utility model can include the following beneficial effects: the hammer body is detachably installed on the body of the impact crusher, which not only ensures the stable operation of the hammer body in the crusher, but also facilitates subsequent maintenance and replacement; the sheath is detachably installed on the hammer body, which protects the hammer body from direct impact and wear of materials, thereby extending the service life of the hammer. Traditional hammers are mostly straight or crescent-shaped. In order to ensure sufficient strength and wear resistance, these two shapes of hammers are often relatively thick and heavy. The hammer body adopts an S-shaped structure. Under the premise of meeting strength and wear resistance, the two grooves reduce the overall weight of the hammer. The lightweight hammer body reduces the energy consumption and operating cost of the crusher. The sheath can be easily disassembled and replaced after wear. This technical solution solves the problems of heavy, high-energy-consumption, and severe wear of traditional impact crusher hammers. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are 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] Figure 1 This is a schematic diagram of the lightweight hammer plate in this utility model;

[0028] Figure 2 This is a schematic diagram of the main body of the hammer plate in this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the sheath in this utility model;

[0030] Figure 4 This is a schematic diagram of the main body of the hammer plate in this utility model;

[0031] Figure 5 This is a cross-sectional schematic diagram of the lightweight hammer plate in this utility model.

[0032] The components include: hammer body 1, mounting part 10, first arc structure 101, second arc structure 102, first groove 11, second groove 12, first mark 13, second mark 14, sheath 2, connecting part 20, white cast iron body 21, semi-cylindrical protrusion 22, short semi-cylindrical protrusion 23, countersunk connecting hole 24, threaded through hole 3, cover 4, first buffer structure 51, second buffer structure 52, and reinforcing rib 6. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-5 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0037] In a preferred embodiment of this application, a lightweight hammer for an impact crusher is provided. The lightweight hammer includes a hammer body 1 and a protective sleeve 2. The hammer body 1 is detachably installed on the crusher. The hammer body 1 has an overall S-shaped structure. Based on the S-shaped structure, the hammer body 1 has a first arc structure 101 at one end and a second arc structure 102 at the other end. The protective sleeve 2 is detachably installed on the hammer body 1. The hammer body 1 has a first groove 11 and a second groove 12. The first groove 11 is located at the top of the hammer body 1, and the first arc structure 101 and the first groove 11 form a first installation space, in which the protective sleeve 2 is installed. The second groove 12 is located at the bottom of the hammer body 1, and the second arc structure 102 and the second groove 12 form a second installation space, in which the hammer body 1 is detachably installed on the crusher body.

[0038] Specifically, the hammer body 1 is detachably installed on the body of the impact crusher via a second mounting space formed by the second arc structure 102 and the second groove 12 at its bottom. This installation method not only ensures the stable operation of the hammer body 1 in the crusher, but also facilitates subsequent maintenance and replacement; the sheath 2 is installed in the first mounting space at the top of the hammer body 1, which is composed of the first arc structure 101 and the first groove 11. The main function of the sheath is to protect the hammer body 1 from direct impact and wear of materials, thereby extending the service life of the hammer. Traditional hammers are mostly straight or crescent-shaped. To ensure sufficient strength and wear resistance, these two shapes are often quite heavy. The hammer body 1 adopts an S-shaped structure. Under the premise of meeting strength and wear resistance, grooves are provided at the top and bottom of the hammer body 1. The two grooves reduce the overall weight of the hammer body 1. The lighter hammer body 1 reduces the energy consumption and operating cost of the crusher. Furthermore, one groove is detachably assembled with the sheath 2, and the other groove is detachably assembled with the crusher body. After the sheath 2 is worn, it can be easily removed and replaced. This technical solution solves the problems of heavy, high-energy-consumption, and severe wear of the hammers in traditional impact crushers.

[0039] In an optional embodiment, the first groove 11 and the second groove 12 have the same structure, and both the first groove 11 and the second groove 12 are provided with a mounting part 10; the protective sleeve 2 includes a connecting part 20, which is detachably installed on the mounting part 10, that is, the connecting part 20 on the protective sleeve 2 can be snapped onto the mounting part 10 on the first groove 11, and the connecting part 20 and the mounting part 10 are spliced ​​together by an interlocking structure, so that the two parts are not easy to fall off in the horizontal direction after being fixed.

[0040] Specifically, since the first groove 11 and the second groove 12 have the same structure and both grooves are provided with the same mounting part 10, it means that the front and back of the lightweight hammer can be used interchangeably. For example, the front of the lightweight hammer is equipped with the protective sleeve 2, and the back of the lightweight hammer is connected to the crusher body. When the front is worn due to long-term use, the lightweight hammer can be removed from the crusher body and the protective sleeve 2 can be removed from the lightweight hammer. The front of the lightweight hammer can be connected to the crusher body, and the protective sleeve 2 can be installed on the front of the lightweight hammer. The front and back of the lightweight hammer can be flipped. When one side of the lightweight hammer is severely worn, the other side of the lightweight hammer can be flipped over to use, thus extending the service life of the lightweight hammer.

[0041] In an optional embodiment, the sheath 2 further includes a white cast iron body 21 and a plurality of semi-cylindrical protrusions 22; the plurality of semi-cylindrical protrusions 22 are arranged in parallel at intervals on the working surface of the white cast iron body 21.

[0042] Specifically, a number of semi-cylindrical protrusions 22 are arranged at intervals on the working surface of the white cast iron body 21. This not only disperses the impact force and improves the impact resistance of the sheath 2, but also increases the thickness of the working surface and enhances the wear resistance of the sheath 2. Furthermore, the operator can replace the sheath 2 with a new one according to the wear condition of the semi-cylindrical protrusions 22 on the working surface, which facilitates later maintenance.

[0043] It should be noted that the white cast iron body 21 is made of high wear-resistant white cast iron material. White cast iron is a type of cast iron with a hard and brittle metallic structure, and its fracture surface is white, mainly composed of ferrite and carbides. The following process enables the white cast iron body 21 to possess high strength, high wear resistance, excellent impact resistance, and good toughness: the white cast iron body 21 is heated to the austenitic region, then rapidly cooled to the bainitic region and isothermally held, transforming the matrix structure of the white cast iron body 21 into bainite, with eutectic carbides distributed in a spherical pattern; this step significantly improves the impact toughness of the white cast iron body 21. The isothermally quenched white cast iron body 21 is then tempered to eliminate quenching stress and improve plasticity and toughness.

[0044] In an optional embodiment, the lightweight hammer further includes a plurality of threaded through holes 3 and a plurality of countersunk connecting holes 24. The sheath 2 also includes short semi-cylindrical protrusions 23, which are arranged parallel to the semi-cylindrical protrusions 22 on the working surface of the white cast iron body 21. The threaded through holes 3 are evenly spaced on the hammer body 1. The white cast iron body 21 is provided with the countersunk connecting holes 24 on both sides near the short semi-cylindrical protrusions 23. The sheath 2 is fixed to the hammer body 1 through the countersunk connecting holes 24 and bolts. The hammer body 1 is fixed to the crusher through the threaded through holes 3 and bolts.

[0045] Specifically, the short semi-cylindrical protrusion 23 can serve as a positioning point. The white cast iron body 21 is provided with countersunk connection holes 24 on both sides near the short semi-cylindrical protrusion 23, enabling quick and accurate installation, reducing installation time and improving work efficiency. The sheath 2 is fixed to the hammer body 1 via the countersunk connection holes 24 and bolts. This design makes the installation and removal of the sheath 2 simple and quick. Simultaneously, the hammer body 1 is fixed to the crusher via the threaded through holes 3 and bolts. This fixing method is not only robust and reliable but also facilitates disassembly and replacement, improving the maintainability of the crusher.

[0046] In an optional embodiment, each of the countersunk connecting holes 24 and a corresponding threaded through hole 3 are arranged vertically opposite each other, and a screw passes through the countersunk connecting hole 24 and connects with the threaded through hole 3.

[0047] Specifically, the screw passes directly through the countersunk joint connection hole 24 and connects to the threaded through hole 3, ensuring a secure connection between the sheath 2 and the hammer body 1, reducing the risk of the sheath 2 loosening or falling off due to vibration or impact during the crushing process. When the sheath 2 needs to be replaced, it can be easily removed from the hammer body 1 simply by unscrewing the screw. This design makes maintenance and replacement simple and quick.

[0048] In an optional embodiment, the lightweight hammer plate further includes a cover 4, which is fitted into the sinkhole 24.

[0049] Specifically, by setting the cover 4, the sinking platform connection hole 24 can be effectively sealed and isolated from the surrounding environment, thereby forming a relatively independent space, which helps to keep the interior of the sinking platform clean and tidy.

[0050] In an optional embodiment, the lightweight hammer further includes a first buffer structure 51, which is disposed between the hammer body 1 and the sheath 2.

[0051] Specifically, the first buffer structure 51 can effectively absorb and disperse the impact and vibration generated when the sheath 2 and the hammer body 1 are working, protecting the entire mechanical equipment; at the same time, it can also reduce the direct contact and friction between the sheath 2 and the hammer body 1, thereby extending the service life.

[0052] It should be noted that the material selection of the first buffer structure 51 mainly depends on factors such as the impact load it needs to withstand, the working environment temperature, wear resistance requirements, and cost. The material of the first buffer structure 51 is rubber, or the material of the first buffer structure 51 is polyurethane or polytetrafluoroethylene.

[0053] In an optional embodiment, the lightweight hammer further includes a second buffer structure 52, which is disposed between the hammer body 1 and the crusher body.

[0054] Specifically, the second buffer structure 52 can effectively absorb and disperse the vibration and impact forces generated during the crushing process, which helps to improve the overall stability of the crusher and reduce mechanical failures caused by vibration and impact. By absorbing and dispersing the impact force, the second buffer structure 52 can reduce the wear between the lightweight hammer body 1 and the crusher body, which helps to extend the service life of the crusher and the hammer, and reduce replacement and maintenance costs.

[0055] It should be noted that the material selection of the second buffer structure 52 mainly depends on factors such as the impact load it needs to withstand, the working environment temperature, wear resistance requirements, and cost. The material of the second buffer structure 52 is rubber, or the material of the second buffer structure 52 is polyurethane or polytetrafluoroethylene.

[0056] In an optional embodiment, the lightweight hammer further includes a reinforcing rib 6, which is disposed inside the hammer body 1.

[0057] Specifically, the main function of the reinforcing rib 6 is to increase the internal structural strength of the hammer body 1. While ensuring strength, the reinforcing rib 6 can also help achieve the goal of lightweighting. Furthermore, the reinforcing rib 6 can effectively disperse the impact force generated during the crushing process, reducing local wear and fatigue damage of the hammer body 1.

[0058] In an optional embodiment, one side of the hammer body 1 is provided with a first mark 13, and the other side of the hammer body 1 is provided with a second mark 14.

[0059] Specifically, the first mark 13 and the second mark 14 can clearly identify the front and back of the hammer body 1, which helps to quickly and accurately identify and distinguish the front and back of the hammer body 1 during assembly, maintenance or replacement, and avoid misoperation or confusion.

[0060] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lightweight hammer plate for an impact crusher, characterized in that, The lightweight hammer plate includes a hammer plate body and a protective sleeve; The hammer body is detachably installed on the crusher. The hammer body has an overall S-shaped structure and is provided with a first arc structure and a second arc structure. The sheath is detachably installed on the hammer body; The hammer body is provided with a first groove and a second groove; The first groove is disposed on the top of the hammer body, the first arc structure and the first groove form a first installation space, and the sheath is installed in the first installation space; The second groove is provided at the bottom of the hammer body, and the second arc structure and the second groove form a second mounting space. The hammer body is detachably mounted to the crusher body through the second mounting space.

2. The lightweight hammer plate of the impact crusher according to claim 1, characterized in that, The first groove and the second groove have the same structure, and both the first groove and the second groove are provided with a mounting part; The sheath includes a connecting portion, which is detachably mounted to the mounting portion.

3. The lightweight hammer plate of the impact crusher according to claim 2, characterized in that, The sheath also includes a white cast iron body and several semi-cylindrical protrusions; Several of the semi-cylindrical protrusions are arranged in parallel at intervals on the working surface of the white cast iron body.

4. The lightweight hammer plate of the impact crusher according to claim 3, characterized in that, The lightweight hammer also includes several threaded through holes and several countersunk connecting holes. The sheath also includes short semi-cylindrical protrusions, which are arranged parallel to the semi-cylindrical protrusions on the working surface of the white cast iron body. The threaded through holes are evenly spaced on the hammer body; the white cast iron body is provided with the countersunk connecting holes on both sides near the short semi-cylindrical protrusion. The sheath is fixed to the hammer body through the countersunk connection hole and bolts; The hammer body is fixed to the crusher through the threaded through hole and bolts.

5. The lightweight hammer plate of the impact crusher according to claim 4, characterized in that, Each of the countersunk connecting holes is arranged vertically opposite to a corresponding threaded through hole, and a screw passes through the countersunk connecting hole and connects with the threaded through hole.

6. The lightweight hammer plate of the impact crusher according to claim 5, characterized in that, The lightweight hammer plate also includes a cover, which is fitted into the sinkhole of the platform.

7. The lightweight hammer plate of the impact crusher according to claim 1, characterized in that, The lightweight hammer also includes a first buffer structure, which is disposed between the hammer body and the sheath.

8. The lightweight hammer plate of the impact crusher according to claim 1, characterized in that, The lightweight hammer also includes a second buffer structure, which is disposed between the hammer body and the crusher body.

9. The lightweight hammer plate of the impact crusher according to claim 1, characterized in that, The lightweight hammer also includes reinforcing ribs, which are disposed inside the hammer body.

10. The lightweight hammer plate of the impact crusher according to claim 1, characterized in that, The hammer body has a first mark on one side and a second mark on the other side.

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