Hammer mill rotor structure

Abstract

The utility model discloses a hammer piece rubbing crusher rotor structure mainly applied to rubbing crusher technical field contains pulley, bearing, pivot, hammer piece, blade shaft, blade, the pivot initial end has pulley, and the pulley one side has the bearing, and the pivot terminal has the bearing, and the pivot outer edge is detachably connected with a plurality of hammer pieces, and the hammer piece outer edge has a plurality of arc beating sections, and the arc beating section one side is sawtooth, and the arc beating section has the through -hole on, and the blade shaft passes through a plurality of through -holes, and the blade shaft one end is the stud, and the other end is the nut, and the blade shaft is rotatably connected with the blade on, and the blade between the hammer piece is staggered arrangement. Compared with the prior art, the hammer piece rubbing crusher rotor structure of the utility model has the advantages of scientific and reasonable structure design, small installation and maintenance difficulty, low manufacturing cost, safety and reliability, long service life and high crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a rotor structure for a hammer mill crusher. Background Technology

[0002] The rotor of an existing hammer mill mainly consists of a rotating shaft and hammers fixed on the rotating shaft and evenly spaced. During the crushing process, the mill shaft rotates at high speed, driving the hammers to rotate at high speed. The hammers crush the material, and the crushed material is discharged through the sieve holes on the screen plate that encloses the crushing chamber, thus completing the crushing function of the mill.

[0003] Application No. 2012202175755 discloses a rotor for a hammer mill. The rotor includes multiple turntables, a main shaft, a suspension shaft, and hammers. Both the main shaft and the suspension shaft pass through the center of gravity of all the turntables. Each hammer has a through hole, through which the suspension shaft passes. Hammers connected to the same suspension shaft are fixed by a pair of fixed shafts. The fixed shafts are located on both sides of the hammers, with both ends extending to the outermost turntable. The fixed shafts are positioned relative to the hammers by positioning components. The rotor of this invention can hammer materials with its entire rotor, resulting in minimal rotor speed decay. All the rotor's kinetic energy is used for crushing the material, generating a large impulse and maximizing the use of the hammers' kinetic energy for material crushing, thus achieving a high kinetic energy utilization rate.

[0004] Although the above technical solutions can quickly crush materials, they still have the following problems: 1. The structure is complex, and it is difficult and time-consuming to replace the hammers and turntable; 2. The crushing efficiency is low, the turntable does not participate in the crushing operation, and the crushing operation coverage area is small. Utility Model Content

[0005] This utility model proposes a rotor structure for a hammer mill, which solves the problems of complex rotor structure, difficult maintenance, and low crushing efficiency in existing hammer mills.

[0006] The technical solution of this utility model is as follows: a rotor structure for a hammer mill includes a pulley, a bearing, a rotating shaft, hammers, a blade shaft, and blades. The rotating shaft has a pulley at its beginning, a bearing on one side of the pulley, and a bearing at the end of the rotating shaft. Several hammers are detachably connected to the outer edge of the rotating shaft. The outer edge of each hammer has several arc-shaped striking sections, one side of which is serrated. Each arc-shaped striking section has through holes. The blade shaft passes through several through holes. One end of the blade shaft is a stud, and the other end is a nut. Blades are rotatably connected to the blade shaft. The blades among the hammers are arranged in an alternating pattern.

[0007] Preferably, the hammer blade has four arc-shaped striking sections.

[0008] Preferably, the hammer blade has a thickness of 10 mm and a diameter of 260 mm.

[0009] Preferably, the number of hammer blades is 5, and the distance between each hammer blade is 65mm.

[0010] Preferably, the blade has a length of 100mm, a thickness of 25mm, and a thickness of 2mm.

[0011] Preferably, the blade shaft has several limiting sleeves.

[0012] Preferably, the distance between the blade shafts is 80mm.

[0013] Preferably, the hammer and blade are made of steel plate and formed by wire cutting.

[0014] Preferably, the hammer and blade are made of high manganese steel and have undergone surface hardening treatment.

[0015] Preferably, the blade edge is serrated.

[0016] The principle of this utility model: To solve the problems of complex rotor structure, difficult maintenance, and low crushing efficiency in existing hammer mills, this utility model adopts the following technical solution: This application uses a combination of hammers and blades for crushing. Compared with the existing turntable, the hammers participate in the crushing operation, and the hammers have a multi-angled structure, allowing the material to pass between the hammers without being segmented. This prevents some material from accumulating between the turntables, reducing the material crushing efficiency. In this application, the edges of the hammers have several arc-shaped impact sections with serrated edges, increasing the contact area with the material. When the material impacts the serrated edges, the impact force per unit area is greater than that of the turntable, making it easier for the material to be crushed. Instantaneous crushing significantly improves crushing efficiency. Similarly, the blade edges also have a serrated structure, making it easier to crush materials under the action of the hammers and blades. The distance between the hammers and blades in this application is limited by the limiting sleeve on the blade shaft. When the blades need to be replaced, simply remove the nut at one end of the blade shaft, remove the blade shaft and limiting sleeve, remove the damaged blade, replace it with a new blade, and reassemble it in the original order. Replacing the blades is relatively easy. However, when the hammers need to be replaced, all blade shafts and limiting sleeves need to be removed, and then the hammers need to be removed from the rotating shaft. The hammers and the rotating shaft can be fixed by a flat key and a keyway. The disassembly and assembly process is relatively simple, saving time and effort, and the maintenance cost is low.

[0017] The beneficial effects of this utility model are as follows: Compared with the prior art, the rotor structure of the hammer mill has a scientific and reasonable structural design, is easy to install and maintain, has low manufacturing cost, is safe and reliable, has a long service life, and has high crushing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is the front view of the present utility model;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a right view of the present invention;

[0022] Figure 5 This is a schematic diagram of the hammer structure;

[0023] In the diagram, 101-shaft, 102-pulley, 103-bearing, 104-hammer, 1041-arc striking section, 1042-serration, 1043-through hole, 105-blade shaft, 106-blade. Detailed Implementation

[0024] The specific implementation method of this utility model is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a rotor structure for a hammer mill includes a pulley 102, a bearing 103, a rotating shaft 101, hammers 104, a blade shaft 105, and blades 106. The rotating shaft 101 has a pulley 102 at its beginning, a bearing 103 on one side of the pulley 102, and a bearing 103 at the end of the rotating shaft 101. Several hammers 104 are detachably connected to the outer edge of the rotating shaft 101. Several arc-shaped striking sections 1041 are located on the outer edge of each hammer 104. One side of each arc-shaped striking section 1041 has serrations 1042. Each arc-shaped striking section 1041 has through holes 1043. The blade shaft 105 passes through several through holes 1043. One end of the blade shaft 105 is a stud, and the other end is a nut. Blades 106 are rotatably connected to the blade shaft 105. The blades 106 among the hammers 104 are arranged in an alternating pattern. In this embodiment, the crushing operation is completed by hammer blades 104 and blades 106. Compared with the turntable, the hammer blades 104 participate in the crushing operation, which is more efficient. The hammer blades 104 at the beginning and end are limited by nuts or other limiting devices to prevent movement during use.

[0025] Specifically, such as Figure 1 , Figure 4 As shown, the hammer blade 104 has four arc-shaped impact sections 1041. In this embodiment, the four arc-shaped impact sections 1041 can ensure both the crushing rate and the material can pass through the hammer blade 104, avoiding the accumulation of material between the hammer blades 104 and affecting the material crushing efficiency.

[0026] Specifically, the hammer blade 104 has a thickness of 10mm and a diameter of 260mm. In this embodiment, the 10mm thick and 260mm diameter hammer blade 104 has a long service life, a large contact area with the material, and high crushing efficiency.

[0027] Specifically, there are 5 hammer blades 104, and the distance between each hammer blade 104 is 65mm. In this embodiment, this scheme ensures that the number of hammer blades 104 and blades 106 are evenly distributed, which can not only ensure the uniformity of the crushed particle size, but also improve the crushing efficiency.

[0028] Specifically, the blade 106 has a length of 100mm, a thickness of 25mm, and a diameter of 2mm. In this embodiment, the blade 106 with the above dimensions has a long service life and high crushing efficiency.

[0029] Specifically, the blade shaft 105 has several limiting sleeves. In this embodiment, the limiting sleeves are used to limit the distance between the blade 106 and the hammer 104. Prestressed components are not used, making disassembly and assembly convenient and maintenance easy.

[0030] Specifically, the distance between the blade shafts 105 is 80mm. In this embodiment, using blade shafts 105 of the above dimensions allows for the installation of longer blades 106, improving crushing efficiency.

[0031] Specifically, the hammer blade 104 and the blade 106 are made of steel plate and formed by wire cutting. In this embodiment, the hammer blade 104 and the blade 106 made of steel plate and formed by wire cutting have higher hardness, better wear resistance, and longer service life compared to casting.

[0032] Specifically, the hammer 104 and blade 106 are made of high-manganese steel and have undergone surface hardening treatment. In this embodiment, the use of high-manganese steel and surface hardening treatment on the hammer 104 and blade 106 further improves surface hardness, significantly increases service life, improves the unit utilization rate of the crusher rotor, and reduces maintenance costs.

[0033] Specifically, such as Figure 1 , Figure 4 As shown, the blade 106 has a serrated edge. In this embodiment, the serrated edge of the blade 106 results in a large impact force when it comes into contact with the material during high-speed rotation, which can instantly crush the material and improve the material crushing rate.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotor structure for a hammer mill, comprising a pulley (102) and a bearing (103), characterized in that: It also includes a rotating shaft (101), hammer blades (104), blade shaft (105), and blades (106). The rotating shaft (101) has a pulley (102) at the beginning and a bearing (103) on one side of the pulley (102). The rotating shaft (101) has a bearing (103) at the end. Several hammer blades (104) are detachably connected to the outer edge of the rotating shaft (101). Several arc-shaped striking sections (1041) are on the outer edge of the hammer blades (104). One side of the arc-shaped striking section (1041) is a serration (1042). There are through holes (1043) on the arc-shaped striking section (1041). The blade shaft (105) passes through several through holes (1043). One end of the blade shaft (105) is a stud and the other end is a nut. Blades (106) are rotatably connected to the blade shaft (105). The blades (106) between the hammer blades (104) are arranged in an alternating pattern.

2. The rotor structure of a hammer mill according to claim 1, characterized in that: The hammer (104) has four arc-shaped striking sections (1041).

3. The rotor structure of a hammer mill according to claim 2, characterized in that: The hammer blade (104) has a thickness of 10 mm and a diameter of 260 mm.

4. The rotor structure of a hammer mill according to claim 1, characterized in that: The number of hammer blades (104) is 5, and the distance between each hammer blade (104) is 65mm.

5. The rotor structure of a hammer mill according to claim 1, characterized in that: The blade (106) is 100mm long, 25mm thick, and 2mm thick.

6. The rotor structure of a hammer mill according to claim 1, characterized in that: The blade shaft (105) has several limiting sleeves.

7. The rotor structure of a hammer mill according to claim 6, characterized in that: The distance between the blade shafts (105) is 80 mm.

8. The rotor structure of a hammer mill according to claim 1, characterized in that: The hammer (104) and blade (106) are made of steel plate material and are formed by wire cutting.

9. The rotor structure of a hammer mill according to claim 8, characterized in that: The hammer (104) and blade (106) are made of high manganese steel and have undergone surface hardening treatment.

10. The rotor structure of a hammer mill according to claim 1, characterized in that: The blade (106) has a serrated edge.

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