Shock-resistant and wear-resistant hammer head

Abstract

The utility model discloses an impact-resistant and wear-resistant hammer head which comprises a hammer head body and a hammer handle, and a connecting sleeve is arranged on the inner side of the hammer handle. The hammerhead is produced in an embedded pouring mode, the hammerhead pouring liquid is made of a high-chromium cast iron material, the whole hammerhead has efficient wear resistance, high temperature resistance and high stability, the service life of the whole hammerhead body is greatly prolonged in the using process of the hammerhead body, meanwhile, the impact resistance of the whole hammerhead body is improved by prearranging the embedded frame, and the service life of the hammerhead body is prolonged. Under the action of the pre-embedded frame, the wear-resisting plate is convenient to disassemble, assemble and replace, when the outer side of the hammer head body is seriously abraded or damaged, targeted replacement is convenient, and the situation that the resource utilization rate is reduced due to overall replacement of the hammer head body is avoided; and the service life and the stability can be kept for a long time, so that the overall service life of the hammer head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to an impact-resistant and wear-resistant hammer head. Background Art

[0002] A crusher is a machine that crushes large solid raw materials into required sizes. The crusher consists of coarse crushing, fine crushing, wind conveying and other devices, and achieves the purpose of the crusher in the form of high-speed impact. The hammer head is one of the core components of the crusher, which is set on the hammer shaft of the crusher rotor. The hammer head directly hits the material when the crusher is running at high speed, and finally crushes it into a suitable material particle size.

[0003] Chinese patent document, announcement number: CN206276452U, by setting a third step and cooperating with the hammer shaft, the hammer head body is limited in circumferential direction, so that the hammer head is not easy to rotate after being used for a long time after installation, and the hammering effect is better. In addition, the hammer head body is made of alumina ceramics, so the impact resistance and wear resistance are also better.

[0004] During use, although the wear resistance of the hammer head is improved by utilizing the characteristics of alumina ceramic materials, it is still prone to severe wear after a long period of use. When replaced, the entire hammer head needs to be replaced, resulting in low material utilization and poor overall impact resistance. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an impact-resistant and wear-resistant hammer head, which has the advantages of convenient replacement of the wear surface and improved overall utilization rate. At the same time, the overall impact resistance is high, and the overall service life is improved. The utility model solves the technical problems that the existing hammer heads using the characteristics of alumina ceramic materials are still severely worn after a long service life and the overall replacement material utilization rate is low.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impact-resistant and wear-resistant hammer head, comprising a hammer head body and a hammer handle, a connecting sleeve is arranged on the inner side of the hammer handle, an embedded frame is arranged inside the hammer head body, a reserved groove is arranged on the outer side of the hammer head body, and a wear-resistant plate is installed on the inner side of the reserved groove by snap-fitting.

[0007] As a preferred solution of the utility model, the connecting sleeve includes an inner sleeve and a limiting sleeve. The connecting sleeve is made of chromium-based white cast iron material as a whole, and the limiting sleeves are fixedly installed at both ends of the outer side of the inner sleeve. Since the connecting sleeve is arranged on the inner side of the hammer handle, and the chromium-based white cast iron used in the connecting sleeve has high wear resistance and high temperature resistance, it is beneficial to improve the stability of the connection position between the hammer handle and the hammer shaft. At the same time, under the action of the limiting sleeve, it is beneficial to ensure that the limiting sleeve is not easy to fall off from the hammer handle during use, thereby improving the overall stability.

[0008] As a preferred embodiment of the utility model, the embedded frame includes embedded rod one, embedded rod two, a reinforcement rod and threads, threads are respectively provided at both ends of the embedded rod one and the embedded rod two, the embedded rod one and the embedded rod two are fixed by welding, and a reinforcement rod is fixedly installed between the embedded rod one.

[0009] During use, the pre-installed embedded frame is helpful to improve the overall impact resistance of the hammer body, thereby improving the overall service life, and under the action of the embedded frame, it is convenient to disassemble and replace the wear-resistant plate, so that when the outer side of the hammer body is severely worn or damaged, it is convenient to carry out targeted replacement, which is helpful to avoid the overall replacement of the hammer body, resulting in reduced resource utilization.

[0010] As a further preferred embodiment of the present invention, the reserved groove is a trapezoidal structure, and there are four reserved grooves in total, which are respectively provided on the outside of the hammer head body, and the two ends of the embedded rod one and the embedded rod two are respectively located on the inside of the reserved grooves.

[0011] During the installation of the wear-resistant plate, the wear-resistant plate is passed through both ends of the embedded rod 1 and the embedded rod 2 and engaged with the reserved grooves, and then connected and fixed with nuts, which makes disassembly and assembly convenient and quick.

[0012] As a further preferred embodiment of the present invention, the wear-resistant plate is made of a polymer lining plate, and a connecting hole is opened on the outside of the wear-resistant plate. The size and shape of the connecting hole respectively match the two ends of the embedded rod one and the embedded rod two, and the size and shape of the wear-resistant plate respectively match the reserved groove.

[0013] During use, since the wear-resistant plate adopts a polymer lining, it can maintain its service life and stability for a long time, which is beneficial to improve the overall service life of the hammer head. At the same time, the wear-resistant plate can be positioned and installed conveniently through the connecting holes, thereby improving the installation efficiency.

[0014] Compared with the prior art, the impact-resistant and wear-resistant hammer head provided by the utility model has the following beneficial effects:

[0015] 1. The utility model produces the hammer head by pre-embedded casting, and the high-chromium cast iron material used in the hammer head casting liquid has high wear resistance, high temperature resistance and high stability as a whole, which can greatly improve the overall service life of the hammer head body during use. At the same time, by pre-setting the embedded frame, it is beneficial to improve the overall impact resistance of the hammer head body, thereby improving the overall service life;

[0016] 2. The utility model facilitates the disassembly and replacement of the wear-resistant plate under the action of the embedded frame, so that when the outer side of the hammer body is seriously worn or damaged, it is convenient to replace it in a targeted manner, which is conducive to avoiding the reduction of resource utilization rate due to the replacement of the entire hammer body. In addition, the wear-resistant plate adopts a polymer lining plate, which can maintain its service life and stability for a long time, thereby helping to improve the overall service life of the hammer head;

[0017] 3. A connecting sleeve is provided on the inner side of the hammer handle of the utility model, and the connecting sleeve is made of chromium-based white cast iron with high efficiency wear resistance and high temperature resistance, which is beneficial to improving the stability of the connection position between the hammer handle and the hammer shaft. At the same time, under the action of the limit sleeve, it is beneficial to ensure that the limit sleeve is not easy to fall off from the hammer handle during use, thereby improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is a front cross-sectional structural schematic diagram of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the embedded frame structure of a pre-implementation embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting sleeve of an embodiment of the utility model;

[0023] Figure 5 for Figure 2 A in the figure is an enlarged structural diagram.

[0024] Figure numerals: 1, hammer body; 2, hammer handle; 3, connecting sleeve; 4, embedded frame; 5, reserved groove; 6, wear-resistant plate; 301, inner sleeve; 302, limit sleeve; 401, embedded rod one; 402, embedded rod two; 403, reinforcement rod; 404, thread; 601, connecting hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] like Figure 1-5 As shown, the impact-resistant and wear-resistant hammer head of the utility model embodiment includes a hammer head body 1 and a hammer handle 2, a connecting sleeve 3 is arranged on the inner side of the hammer handle 2, an embedded frame 4 is arranged inside the hammer head body 1, a reserved groove 5 is arranged on the outer side of the hammer head body 1, and a wear-resistant plate 6 is installed on the inner side of the reserved groove 5 by snap-fitting.

[0030] The connecting sleeve 3 includes an inner sleeve 301 and a limiting sleeve 302. The connecting sleeve 3 is made of chromium-based white cast iron material. The limiting sleeves 302 are fixedly mounted on both ends of the outer side of the inner sleeve 301. The chromium-based white cast iron used in the connecting sleeve 3 has high wear resistance and high temperature resistance, which is conducive to improving the stability of the connection position between the hammer handle 2 and the hammer shaft. At the same time, under the action of the limiting sleeve 302, it is conducive to ensuring that the limiting sleeve 302 is not easy to fall off from the hammer handle 2 during use, thereby improving the overall stability.

[0031] The embedded frame 4 includes an embedded rod 1 401, an embedded rod 2 402, a reinforcement rod 403 and a thread 404. The two ends of the embedded rod 1 401 and the embedded rod 2 402 are respectively provided with threads 404. The embedded rod 1 401 and the embedded rod 2 402 are fixed by welding, and the reinforcement rod 403 is fixedly installed between the embedded rod 1 401. By pre-installing the embedded frame 4, it is beneficial to improve the impact resistance of the hammer body 1 as a whole, thereby improving the overall service life, and under the action of the embedded frame 4, it is convenient to disassemble and replace the wear-resistant plate 6, so that when the outer side of the hammer body 1 is seriously worn or damaged, it is convenient to replace it in a targeted manner, which is beneficial to avoid the overall replacement of the hammer body 1 resulting in a reduction in resource utilization.

[0032] Embodiment 2: Figure 1-5 As shown, as an improvement to the previous embodiment.

[0033] The reserved groove 5 is a trapezoidal structure, and there are four reserved grooves 5, which are respectively provided on the outside of the hammer body 1, and the two ends of the embedded rod 1 401 and the embedded rod 2 402 are respectively located on the inside of the reserved groove 5. The wear-resistant plate 6 is passed through the two ends of the embedded rod 1 401 and the embedded rod 2 402 and engaged with the reserved groove 5, and then connected and fixed with a nut, which is convenient and quick to disassemble and assemble.

[0034] The wear-resistant plate 6 is a polymer lining plate, and a connection hole 601 is provided on the outer side of the wear-resistant plate 6. The size and shape of the connection hole 601 respectively match the two ends of the embedded rod 1 401 and the embedded rod 2 402, and the size and shape of the wear-resistant plate 6 respectively match the reserved groove 5. The wear-resistant plate 6 is a polymer lining plate, which can maintain its service life and stability for a long time, thereby helping to improve the service life of the hammer head as a whole.

[0035] When the utility model is used, the hammer head is first produced by the pre-embedded casting method, and the high-chromium cast iron material used in the hammer head casting liquid has high efficiency, wear resistance, high temperature resistance and high stability as a whole, which can greatly improve the overall service life of the hammer head body 1 during use. At the same time, by pre-setting the embedded frame 4, it is beneficial to improve the overall impact resistance of the hammer head body 1, thereby improving the overall service life, and under the action of the embedded frame 4, it is convenient to disassemble and replace the wear-resistant plate 6, so that when the outer side of the hammer head body 1 is severely worn or damaged, it is convenient to replace it in a targeted manner, which is beneficial to avoid the overall replacement of the hammer head body 1 resulting in a decrease in resource utilization, and the wear-resistant plate 6 adopts a polymer lining plate, which itself can maintain service life and stability for a long time, thereby helping to improve the overall service life of the hammer head.

[0036] During the installation of the wear-resistant plate 6, the wear-resistant plate 6 is passed through the two ends of the embedded rod 1 401 and the embedded rod 2 402 and engaged with the reserved groove 5, and then the nut is used to connect and fix it. The disassembly and assembly are convenient and quick. At the same time, a connecting sleeve 3 is provided on the inner side of the hammer handle 2, which is beneficial to improve the stability of the connection position between the hammer handle 2 and the hammer shaft. At the same time, under the action of the limiting sleeve 302, it is beneficial to ensure that the limiting sleeve 302 is not easy to fall off from the hammer handle 2 during use, thereby improving the overall stability.

[0037] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. An impact-resistant and wear-resistant hammer head, comprising a hammer head body (1) and a hammer handle (2), characterized in that: A connecting sleeve (3) is arranged on the inner side of the hammer handle (2), an embedded frame (4) is arranged inside the hammer body (1), a reserved groove (5) is arranged on the outer side of the hammer body (1), and a wear-resistant plate (6) is installed on the inner side of the reserved groove (5) by snap-fitting.

2. The impact-resistant and wear-resistant hammer head according to claim 1, characterized in that: The connecting sleeve (3) comprises an inner sleeve (301) and a limiting sleeve (302). The connecting sleeve (3) is made of chromium-based white cast iron material as a whole. The limiting sleeves (302) are fixedly mounted on both ends of the outer side of the inner sleeve (301).

3. The impact-resistant and wear-resistant hammer head according to claim 1, characterized in that: The embedded frame (4) comprises an embedded rod 1 (401), an embedded rod 2 (402), a reinforcing rod (403) and a thread (404); the two ends of the embedded rod 1 (401) and the embedded rod 2 (402) are respectively provided with threads (404); the embedded rod 1 (401) and the embedded rod 2 (402) are fixed by welding, and the reinforcing rod (403) is fixedly installed between the embedded rods 1 (401).

4. The impact-resistant and wear-resistant hammer head according to claim 3, characterized in that: The reserved groove (5) is a trapezoidal structure. There are four reserved grooves (5) in total, which are respectively arranged on the outside of the hammer head body (1). The two ends of the embedded rod 1 (401) and the embedded rod 2 (402) are respectively located on the inside of the reserved groove (5).

5. The impact-resistant and wear-resistant hammer head according to claim 3, characterized in that: The wear-resistant plate (6) is a polymer lining plate, and a connection hole (601) is provided on the outer side of the wear-resistant plate (6). The size and shape of the connection hole (601) respectively match the two ends of the embedded rod 1 (401) and the embedded rod 2 (402), and the size and shape of the wear-resistant plate (6) respectively match the reserved groove (5).

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