Impact-resistant wear-resistant white cast iron sheath

Abstract

The utility model discloses an impact-resistant wear-resistant white cast iron sheath. The white cast iron sheath comprises a white cast iron main body, a plurality of convex parts, a plurality of mortise structures and a plurality of locking structures, the plurality of convex parts are arranged on the working surface of the white cast iron main body, the plurality of mortise structures are uniformly arranged at the tail part of the white cast iron main body at intervals, the plurality of locking structures are uniformly distributed on the white cast iron main body, and the white cast iron main body is tightly matched with a plate hammer through the mortise structures. The white cast iron main body is fixed with the plate hammer through the locking structure; the convex parts effectively increase the contact area between the sheath and materials, the impact resistance of the sheath is remarkably improved, meanwhile, the service life of the sheath is prolonged when the sheath is abraded through the convex parts, an operator can be reminded to replace a new sheath after the convex parts are abraded to be flat, and the working efficiency is improved. According to the technical scheme, the problems that a plate hammer is insufficient in impact resistance, low in abrasion resistance and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of impact crusher, especially to an anti-impact wear-resistant white mouth cast iron sheath. BACKGROUND

[0002] In the daily operation of the impact crusher, the plate hammer undoubtedly plays a pivotal role, which directly faces and withstands the strong impact and continuous wear from the material. The performance and service life of the plate hammer not only directly reflect the overall operation efficiency of the crusher, but also deeply affect the operation cost and maintenance cycle of the equipment.

[0003] Traditional plate hammer materials, such as modified high manganese steel, super high manganese steel and super high chromium cast iron, although treated by special process to improve hardness and wear resistance, still face challenges such as insufficient impact resistance and decreased wear resistance when facing high-hardness materials and continuous high-intensity impact. UTILITY MODEL CONTENTS

[0004] In view of the above defects, the utility model aims to provide an anti-impact wear-resistant white mouth cast iron sheath to solve the problems of insufficient impact resistance and decreased wear resistance of the plate hammer.

[0005] To achieve this purpose, the utility model adopts the following technical scheme: an anti-impact wear-resistant white mouth cast iron sheath, the white mouth cast iron sheath comprises a white mouth cast iron body, a plurality of convex parts, a plurality of tenon and groove structures and a plurality of locking structures.

[0006] A plurality of convex parts are arranged on the working surface of the white mouth cast iron body, a plurality of tenon and groove structures are arranged at intervals on the tail part of the white mouth cast iron body, and a plurality of locking structures are evenly distributed on the white mouth cast iron body.

[0007] Further, the plurality of convex parts are a plurality of semicircular protrusions and short semicircular protrusions, a plurality of semicircular protrusions and short semicircular protrusions are arranged in parallel at intervals on the working surface of the white mouth cast iron body, and the locking structures are arranged on both sides of the short semicircular protrusions.

[0008] Further, the plurality of convex parts are a plurality of circular protrusions, and the plurality of circular protrusions are arranged on the working surface of the white mouth cast iron body.

[0009] Further, the locking structure comprises a sunken step and a connecting channel, the sunken step and the connecting channel are arranged through the white mouth cast iron body, and the sunken step and the connecting channel are arranged coaxially.

[0010] Further, the white mouth cast iron sheath further comprises a cover, and the cover is embedded and installed on the sunken step.

[0011] Further, the mortise and tenon structure is a dovetail.

[0012] Further, an end of the dovetail has a height of H1, and a head of the dovetail has a height of H2, and H1>H2.

[0013] Further, the white cast iron sheath further comprises a buffer structure, which is arranged between the white cast iron body and the plate hammer.

[0014] Further, the white cast iron sheath further comprises a wear-resistant coating, which is arranged on a working surface of the white cast iron body, and the wear-resistant coating is tungsten carbide.

[0015] Further, the white cast iron sheath further comprises a positioning mark, which is arranged on the white cast iron body.

[0016] The technical scheme provided by the utility model can have the following beneficial effects: the white cast iron body is tightly matched with the plate hammer through the mortise and tenon structure, the white cast iron body is fixed with the plate hammer through the locking structure, a plurality of convex parts are arranged on the working surface of the white cast iron body, the contact area of the sheath and the material is effectively increased, the impact force is dispersed, the pressure on the unit area is reduced, the impact resistance of the sheath is obviously improved, the impact resistance of the plate hammer is improved, meanwhile, the design of the convex parts makes the sheath more evenly distribute the wear amount when the sheath is worn, the service life of the sheath is prolonged, the operation personnel can be reminded to replace the new sheath after the convex parts are worn flat, and the technical scheme solves the problems of insufficient impact resistance and reduced wear resistance of the plate hammer. ACCURACY

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0018] Fig. 1 It is the structure schematic view of the white cast iron sheath of the utility model;

[0019] Fig. 2 It is the structure schematic view of the white cast iron sheath in the utility model;

[0020] Fig. 3 It is the section schematic view of the white cast iron sheath in the utility model.

[0021] Wherein: the white cast iron body 1, the convex part 2, the semicircular column convex 21, the short semicircular column convex 22, the round convex 23, the mortise and tenon structure 3, the dovetail tenon 31, the locking structure 4, the sunken step 41, the connecting channel 42, the cover 5, the buffer structure 6 and the positioning mark 7. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0023] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features and have no order or importance.

[0024] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] The technical solutions of the present application will be further described below with reference to the specific embodiments. Figs. 1-3 The technical solutions of the present application will be further described below with reference to the specific embodiments.

[0026] In one preferred embodiment of the present application, an impact-resistant wear-resistant white cast iron sheath comprises a white cast iron body 1, a plurality of convex parts 2, a plurality of mortise and tenon structures 3 and a plurality of locking structures 4; a plurality of convex parts 2 are arranged on the working surface of the white cast iron body 1, a plurality of mortise and tenon structures 3 are arranged at intervals on the tail of the white cast iron body 1, and a plurality of locking structures 4 are evenly distributed on the white cast iron body 1.

[0027] Specifically, the white cast iron body 1 is made of high wear-resistant white cast iron material. White cast iron is a kind of cast iron with hard and brittle metal structure, and its fracture is white, mainly composed of ferrite and carbide. Through the following process, the white cast iron body 1 has high strength, high wear resistance, excellent impact resistance and good toughness: the white cast iron body 1 is heated to the austenite zone, then rapidly cooled to the bainite zone for isothermal holding, so that the matrix structure of the white cast iron body 1 is transformed into bainite, and the eutectic carbide is distributed in spherical shape; this step can significantly improve the impact toughness of the white cast iron body 1. The white cast iron body 1 after isothermal quenching is tempered to eliminate quenching stress and improve plasticity and toughness. The white cast iron body 1 is tightly matched with the plate hammer through the mortise and tenon structure 3, and the white cast iron body 1 is fixed with the plate hammer through the locking structure 4. By providing a plurality of convex parts 2 on the working surface of the white cast iron body 1, the contact area between the sheath and the material is effectively increased, so as to disperse the impact force and reduce the pressure per unit area, thereby significantly improving the impact resistance of the sheath and the impact resistance of the plate hammer. At the same time, the design of the convex part 2 enables the sheath to distribute the wear evenly when it is worn, prolonging the service life of the sheath. Moreover, the convex part 2 can remind the operator to replace the new sheath after being worn out, thereby solving the problems of insufficient impact resistance and decreased wear resistance of the plate hammer.

[0028] In an optional embodiment, the plurality of convex parts 2 are a plurality of semicylindrical protrusions 21 and short semicylindrical protrusions 22, and the plurality of semicylindrical protrusions 21 and the short semicylindrical protrusions 22 are arranged in parallel and at intervals on the working surface of the white cast iron body 1. The locking structure 4 is arranged on the white cast iron body 1 at positions close to both sides of the short semicylindrical protrusions 22.

[0029] Specifically, the semicylindrical protrusions 21 and the short semicylindrical protrusions 22 are arranged on the working surface of the white cast iron body 1, which not only disperses the impact force and improves the impact resistance of the white cast iron sheath, but also increases the thickness of the working surface and enhances the wear resistance of the white cast iron sheath. Moreover, the operator can replace the new white cast iron sheath according to the wear of the semicylindrical protrusions 21 and the short semicylindrical protrusions 22 on the working surface, thereby facilitating the later maintenance. The short semicylindrical protrusions 22 can be used as positioning points, and when the locking structure 4 is arranged at positions close to both sides of the short semicylindrical protrusions 22, the white cast iron body 1 can be quickly and accurately installed in place, which helps to reduce the installation time and improve the work efficiency.

[0030] In an optional embodiment, the plurality of convex parts 2 are a plurality of semicylindrical protrusions 21 and short semicylindrical protrusions 22, and the plurality of semicylindrical protrusions 21 and the short semicylindrical protrusions 22 are arranged in parallel and at intervals on the working surface of the white cast iron body 1. The locking structure 4 is arranged on the white cast iron body 1 at positions close to both sides of the short semicylindrical protrusions 22.

[0031] Specifically, the design of the circular protrusions 23 not only disperses the impact force and improves the impact resistance of the white cast iron sheath, but also increases the thickness of the working surface and enhances the wear resistance of the white cast iron sheath. The design of the circular protrusions 23 is more eye-catching and prominent in vision, which can attract the attention of the operator and remind the operator to pay attention to the maintenance and replacement of the white cast iron sheath.

[0032] In an optional embodiment, the locking structure 4 comprises a sunken step 41 and a connecting channel 42, the sunken step 41 and the connecting channel 42 are arranged through the white cast iron body 1, and the sunken step 41 and the connecting channel 42 are arranged coaxially.

[0033] Specifically, the design of the sunken step 41 and the connecting channel 42 enables the wear-resistant white cast iron sheath to be tightly attached to the plate hammer through bolts, forming a solid protective layer. The sunken step 41 forms a recessed area in the white cast iron body 1, which is used to accommodate the head of the bolt, ensuring that the bolt does not protrude from the working surface of the sheath after installation, thereby avoiding damage to the bolt during operation. The connecting channel 42 communicates with the sunken step 41 through the white cast iron body 1, which is used to guide the bolt through the sheath and fix the connecting part (such as flange, bracket, etc.) on the plate hammer.

[0034] In an optional embodiment, the white cast iron sheath further comprises a cover 5, which is embedded and installed in the sunken step 41.

[0035] Specifically, by providing the cover 5, the sunken step 41 can be effectively closed and isolated from the surrounding environment, thereby forming a relatively independent space, which helps to maintain the cleanliness and tidiness of the inside of the sunken step.

[0036] In an optional embodiment, the mortise and tenon structure 3 is a dovetail 31.

[0037] Specifically, the dovetail 31 has a unique shape, i.e. the tenon head is narrow at the root and wide at the end, similar to a dovetail, which can provide strong pulling force and shear resistance. This structure makes the connection between the white cast iron body 1 and the plate hammer more stable, and also facilitates disassembly and reinstallation when the white cast iron sheath needs to be maintained or replaced.

[0038] In an optional embodiment, the end height of the dovetail 31 is H1, and the head height of the dovetail 31 is H2, H1>H2.

[0039] Specifically, the end height of the dovetail 31 is greater than the head height, which increases the force receiving area of the dovetail, so that the dovetail can more effectively disperse and resist the pulling force when the dovetail is under stress, thereby improving the tensile strength of the connection.

[0040] In an optional embodiment, the white cast iron sheath further comprises a buffer structure 6, which is arranged between the white cast iron body 1 and the plate hammer.

[0041] Specifically, the buffer structure 6 can effectively absorb and disperse the impact force and vibration generated by the white cast iron body 1 and the plate hammer during work, protecting the entire mechanical equipment; at the same time, it can also reduce the direct contact and friction between the white cast iron body 1 and the plate hammer, thereby prolonging the service life.

[0042] It should be noted that the material selection of the buffer structure 6 mainly depends on the impact load it needs to bear, the working environment temperature, the wear resistance requirement and the cost and other factors, the material of the buffer structure 6 is rubber, or the material of the buffer structure 6 is polyurethane, polytetrafluoroethylene.

[0043] In an optional embodiment, the white cast iron sheath further comprises a wear-resistant coating, which is arranged on the working surface of the white cast iron body 1, and the wear-resistant coating is tungsten carbide.

[0044] Specifically, tungsten carbide is a material with high hardness and high wear resistance, and applying a layer of tungsten carbide coating on the working surface of the white cast iron body 1 can improve the wear resistance of the working surface of the white cast iron body 1 and prolong the service life.

[0045] In an optional embodiment, the white cast iron sheath further comprises a positioning mark 7, which is arranged on the white cast iron body 1.

[0046] Specifically, when the white cast iron sheath needs to be maintained or replaced, the positioning mark 7 can be used as a reference point during installation, which helps to reduce errors during installation and improve installation efficiency and accuracy.

[0047] The above embodiments of the present application are described in detail, and the principles and implementation methods of the present application are described by using specific examples; the above embodiment description is only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation method and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. An impact-resistant and wear-resistant white cast iron sheath, characterized in that, The white cast iron sheath includes a white cast iron body, several protrusions, several tenon and groove structures, and several locking structures. Several protrusions are provided on the working surface of the white cast iron body, several tenon and groove structures are spaced apart and provided at the tail of the white cast iron body, and several locking structures are evenly distributed on the white cast iron body.

2. The white cast iron sheath according to claim 1, characterized in that, The plurality of protrusions are a plurality of semi-cylindrical protrusions and short semi-cylindrical protrusions. The plurality of semi-cylindrical protrusions and short semi-cylindrical protrusions are arranged in parallel at intervals on the working surface of the white cast iron body. The locking structure is respectively provided on both sides near the short semi-cylindrical protrusions.

3. The white cast iron sheath according to claim 1, characterized in that, The plurality of protrusions are circular protrusions, which are disposed on the working surface of the white cast iron body.

4. The white cast iron sheath according to claim 1, characterized in that, The locking structure includes a recessed step and a connecting channel. The recessed step and the connecting channel are disposed through the white cast iron body, and the recessed step and the connecting channel are arranged coaxially vertically.

5. The white cast iron sheath according to claim 4, characterized in that, The white cast iron sheath also includes a cap, which is fitted and installed on the sunken step.

6. The white cast iron sheath according to claim 1, characterized in that, The mortise and tenon structure is a dovetail tenon.

7. The white cast iron sheath according to claim 6, characterized in that, The height of the end of the dovetail tenon is H1, and the height of the head of the dovetail tenon is H2, where H1 > H2.

8. The white cast iron sheath according to claim 1, characterized in that, The white cast iron sheath also includes a buffer structure, which is disposed between the white cast iron body and the hammer.

9. The white cast iron sheath according to claim 1, characterized in that, The white cast iron sheath also includes a wear-resistant coating, which is applied to the working surface of the white cast iron body and is made of tungsten carbide.

10. The white cast iron sheath according to claim 1, characterized in that, The white cast iron sheath also includes a positioning mark, which is disposed on the white cast iron body.

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