Impact mill hammer head with alloy sheets welded on periphery

Abstract

The utility model discloses an impact mill hammer head with alloy sheets welded on the periphery, and relates to the technical field of crushing equipment. Comprising a smashing disc, a plurality of evenly-arranged hammer heads are arranged on the outer edges of the upper surface and the lower surface of the smashing disc in the circumferential direction, the hammer heads arranged on the upper surface and the lower surface of the smashing disc are evenly arranged in a staggered mode along the axis of the smashing disc, the smashing disc is fixedly sleeved with a stator lining plate, and the smashing disc is rotationally arranged in an inner cavity of the stator lining plate along the axis of the stator lining plate. The hammer head is driven to collide with materials at an extremely high linear speed, the materials are subjected to brittle rupture crushing, meanwhile, shearing force generated by matching of the end, close to the stator lining plate, of the hammer head and the stator lining plate can crush the materials, the first alloy pieces are welded and fixed to the two ends of the hammer head welding body, and the first alloy pieces can improve the abrasion resistance and toughness of the hammer head; and after one end of the hammer head is worn, the other end of the hammer head is fixed by changing the position through the fixing bolt, so that the service life of the hammer head is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, specifically to an impact grinding hammer head with alloy sheets welded around its perimeter. Background Technology

[0002] An impact mill is a highly efficient fine grinding device that uses impact, shearing, and collision as its pulverizing mechanism. It is widely used in grain processing, pharmaceuticals, food, and other fields. It achieves ultrafine pulverization by using a high-speed rotating rotor (including hammers, blades, and other components) to impact materials, combined with high-speed collisions between materials and shearing and grinding with the stator or sidewalls.

[0003] In the existing technology, the hammers of impact mills are mostly made of pure alloy materials and single-sided welded alloy sheets. Hammers made of pure alloy have high wear resistance but insufficient toughness. They are prone to breakage once foreign objects enter the material. In addition, the cost is high. Hammers made of single-sided welded alloy sheets fail after the alloy sheets wear down, resulting in a short service life.

[0004] Simply using hammers to crush materials results in poor crushing performance because the materials that the tips of the hammers cannot reach cannot be crushed.

[0005] Therefore, we made improvements and proposed an impact grinding hammer head with alloy sheets welded around its perimeter. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an impact mill hammerhead with alloy sheets welded around all four sides, which solves the problems of high wear resistance but insufficient toughness of pure alloy hammerheads, short service life of hammerheads with alloy sheets welded on only one side, and poor material crushing effect of hammerheads in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an impact mill hammer with alloy sheets welded around its four sides, comprising a crushing disc, with multiple hammers evenly arranged circumferentially along the outer edges of the upper and lower surfaces of the crushing disc. The hammers on the upper and lower surfaces of the crushing disc are evenly staggered along the axis of the crushing disc. A stator liner is fixedly fitted onto the outside of the crushing disc, and the crushing disc is rotatably disposed within the inner cavity of the stator liner along its axis. The hammers are rotatably disposed within the inner cavity of the stator liner by the crushing disc. When the crushing disc rotates, the shearing force generated by the hammer ends near the stator liner in cooperation with the stator liner can crush the material.

[0008] As a preferred embodiment, the hammer head is provided with countersunk holes symmetrically in the middle, and a fixing bolt is provided in the through hole. The hammer head is fixed in the crushing disc by the fixing bolt. The positions of the two ends of the hammer head can be replaced and fixed by the fixing bolt.

[0009] As a preferred embodiment, the hammerhead includes a hammerhead welding body, a first alloy sheet, and a second alloy sheet. The hammerhead welding body is a rectangular steel block structure. Two first alloy sheets are provided, which are symmetrically welded and fixed at both ends of the hammerhead welding body. The surfaces of the first alloy sheets are fitted and covered with the end surfaces of the hammerhead welding body. Two second alloy sheets are provided, which are symmetrically welded and fixed on both sides of the hammerhead welding body. The surfaces of the second alloy sheets are fitted and covered with the side walls of the hammerhead welding body.

[0010] As a preferred embodiment, the two end sidewalls of the second alloy sheet are welded and fixed to the two end surfaces of the first alloy sheet.

[0011] As a preferred embodiment, the stator liner is composed of multiple stator assembly plates, which are assembled along the axis of the crushing disc. The stator assembly plates are arc-shaped plate structures, and the multiple stator assembly plates are assembled together to form the circular inner cavity of the crushing disc.

[0012] As a preferred embodiment, the inner arc surface of the stator assembly plate is provided with a plurality of evenly distributed shearing teeth, the two ends of which coincide with the two side walls of the stator assembly plate, and the plurality of shearing teeth are evenly arranged along the inner arc surface of the stator assembly plate.

[0013] This utility model has the following beneficial effects:

[0014] During operation, the crushing disc rotates at high speed, causing the hammers to collide with the material at extremely high linear speed, resulting in brittle crushing of the material. At the same time, the shearing force generated by the hammers near the stator liner and their interaction with the stator liner can crush the material.

[0015] The first alloy sheet is welded and fixed to both ends of the hammer head welding body. The first alloy sheet can improve the wear resistance and toughness of the hammer head. After one end of the hammer head is worn, the other end is fixed by changing the position through the fixing bolt, thereby improving the service life of the hammer head.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an impact grinding hammer head with alloy sheets welded around its perimeter according to the present invention.

[0018] Figure 2 This is a schematic diagram of the hammer head structure of an impact grinding hammer head with alloy sheets welded around the perimeter according to the present invention.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of an impact grinding hammer head with alloy sheets welded around its perimeter according to the present invention.

[0020] Figure 4 This is a schematic diagram of the stator assembly plate structure of an impact grinding hammer head with alloy sheets welded around its four sides according to the present invention.

[0021] In the diagram, 1 is the crushing disc; 2 is the hammer; 3 is the stator liner; 4 is the countersunk hole; 5 is the fixing bolt; 6 is the hammer welding body; 7 is the first alloy sheet; 8 is the second alloy sheet; 9 is the stator assembly plate; and 10 is the shearing tooth. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 of this utility model.

[0024] Please refer to the examples. Figures 1 to 4 This utility model provides a technical solution: an impact mill hammer head with alloy sheets welded around its four sides, including a crushing disc 1. Multiple hammer heads 2 are evenly arranged circumferentially along the outer edge of the upper and lower surfaces of the crushing disc 1. The hammer heads 2 arranged on the upper and lower surfaces of the crushing disc 1 are evenly staggered along the axis of the crushing disc 1. A stator liner 3 is fixedly sleeved on the outside of the crushing disc 1. The crushing disc 1 is rotatably disposed in the inner cavity of the stator liner 3 along its axis. The hammer heads 2 are rotatably disposed in the inner cavity of the stator liner 3 through the crushing disc 1. When the crushing disc 1 rotates, the shearing force generated by the end of the hammer head 2 near the stator liner 3 in cooperation with the stator liner 3 can crush the material.

[0025] The hammer head 2 is provided with countersunk holes 4 symmetrically in the middle, and a fixing bolt 5 is provided in the through hole. The hammer head 2 is fixedly installed in the crushing disc 1 by the fixing bolt 5. The positions of the two ends of the hammer head 2 can be replaced and fixed by the fixing bolt 5.

[0026] The hammerhead 2 includes a hammerhead welding body 6, a first alloy sheet 7, and a second alloy sheet 8. The hammerhead welding body 6 is a rectangular steel block structure. There are two first alloy sheets 7, which are symmetrically welded and fixed at both ends of the hammerhead welding body 6. The surface of the first alloy sheet 7 is attached to and covers the end surface of the hammerhead welding body 6. There are two second alloy sheets 8, which are symmetrically welded and fixed on both sides of the hammerhead welding body 6. The surface of the second alloy sheet 8 is attached to and covers the side wall of the hammerhead welding body 6.

[0027] The two end sidewalls of the second alloy sheet 8 are welded and fixed to the two end surfaces of the first alloy sheet 7.

[0028] The stator liner 3 is composed of multiple stator assembly plates 9. The multiple stator assembly plates 9 are assembled along the axis of the crushing disc 1. The stator assembly plates 9 have an arc-shaped plate structure. The multiple stator assembly plates 9 are assembled and assembled to form the circular inner cavity of the crushing disc 1.

[0029] The inner arc surface of the stator assembly plate 9 is provided with a plurality of evenly distributed shearing teeth 10. The two ends of the shearing teeth 10 coincide with the two side walls of the stator assembly plate 9, and the plurality of shearing teeth 10 are evenly arranged along the inner arc surface of the stator assembly plate 9.

[0030] The working principle of this utility model:

[0031] During operation, the crushing disc 1 rotates at high speed, causing the hammer 2 to collide with the material at extremely high linear speed, resulting in brittle crushing of the material. At the same time, the shearing force generated by the hammer 2 near the stator liner 3 in conjunction with the stator liner 3 can crush the material.

[0032] The first alloy sheet 7 is welded and fixed to both ends of the hammer head welding body 6. The first alloy sheet 7 can improve the wear resistance and toughness of the hammer head 2. After one end of the hammer head 2 is worn, the other end is fixed by changing its position through the fixing bolt 5, thereby improving the service life of the hammer head 2.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An impact grinding hammer head with alloy sheets welded around its perimeter, characterized in that: The device includes a crushing disc (1), on which multiple hammers (2) are evenly arranged around the outer edge of the upper and lower surfaces. The hammers (2) on the upper and lower surfaces of the crushing disc (1) are evenly staggered along the axis of the crushing disc (1). A stator liner (3) is fixedly fitted on the outside of the crushing disc (1). The crushing disc (1) is rotatably arranged in the inner cavity of the stator liner (3) along its axis. The hammers (2) are rotatably arranged in the inner cavity of the stator liner (3) through the crushing disc (1). When the crushing disc (1) rotates, the shearing force generated by the hammers (2) near the stator liner (3) and the stator liner (3) can crush the material.

2. The impact grinding hammer head with alloy sheets welded around its perimeter according to claim 1, characterized in that: The hammer (2) is provided with countersunk holes (4) symmetrically in the middle and through holes with fixing bolts (5). The hammer (2) is fixed in the crushing disc (1) by fixing bolts (5). The positions of the two ends of the hammer (2) can be replaced and fixed by fixing bolts (5).

3. The impact grinding hammer head with alloy sheets welded around its perimeter according to claim 1, characterized in that: The hammerhead (2) includes a hammerhead welding body (6), a first alloy sheet (7), and a second alloy sheet (8). The hammerhead welding body (6) is a rectangular steel block structure. There are two first alloy sheets (7). The first alloy sheets (7) are symmetrically welded and fixed at both ends of the hammerhead welding body (6). The surface of the first alloy sheet (7) is attached to and covers the end surface of the hammerhead welding body (6). There are two second alloy sheets (8). The second alloy sheets (8) are symmetrically welded and fixed on both sides of the hammerhead welding body (6). The surface of the second alloy sheet (8) is attached to and covers the side wall of the hammerhead welding body (6).

4. The impact grinding hammer head with alloy sheets welded around its perimeter according to claim 3, characterized in that: The two end sidewalls of the second alloy sheet (8) are welded and fixed to the two end surfaces of the first alloy sheet (7).

5. The impact grinding hammer head with alloy sheets welded around its perimeter according to claim 1, characterized in that: The stator liner (3) is composed of multiple stator assembly plates (9). The multiple stator assembly plates (9) are assembled along the axis of the crushing disc (1). The stator assembly plates (9) are arc-shaped plate structures. The multiple stator assembly plates (9) are assembled and assembled to form the circular inner cavity of the crushing disc (1).

6. The impact grinding hammer head with alloy sheets welded around its perimeter according to claim 5, characterized in that: The inner arc surface of the stator assembly plate (9) is provided with a plurality of evenly distributed shearing teeth (10). The two ends of the shearing teeth (10) coincide with the two side walls of the stator assembly plate (9), and the plurality of shearing teeth (10) are evenly arranged along the inner arc surface of the stator assembly plate (9).

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