A hammer mill

Abstract

The utility model belongs to the technical field of the rubbing crusher, concretely relates to a hammer rubbing crusher, including the casing, the upper end fixedly connected with the feed hopper of casing, the inside rotatory connection of casing has the pivot, the pivot fixedly connected with the eyelet, set up the connecting place of casing and inner box through the protection cover, carry out the isolation to casing and inner box, the protection cover is thicker, and the protection is good, through the setting of rubbing knife, carry out the secondary rubbing to the stone, increase the rubbing effect, avoid the spatter of larger stone and hit the inner box, reduce the indirect damage to casing, thereby all play the reinforcing protection effect to casing, set up the filter screen in the inside of screening box, the filter screen carries out the screening to the stone, and the big particle stone is moved to the inclined hole through the filter screen after the screening of stone, and is discharged to the discharge plate through the inclined hole, and is discharged through the discharge plate, and the smaller stone that passes through the filter screen is discharged through the discharge cylinder, thereby reach the effect that screen the size stone.

Description

Technical Field

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

[0002] A pulverizer is a machine that crushes large solid raw materials to the required size. A pulverizer consists of coarse crushing, fine crushing, and pneumatic conveying devices, achieving its pulverizing purpose through high-speed impact. It utilizes wind power to grind materials in a single pass, eliminating the need for traditional screening. It is mainly used in mining, building materials, and other industries. The external forces applied to the solid during the pulverizing process include shearing, impact, crushing, and grinding. Shearing is mainly used in coarse crushing (crushing) and pulverizing operations, suitable for crushing or pulverizing tough or fibrous materials and large pieces; impact is mainly used in pulverizing operations, suitable for crushing brittle materials; crushing is mainly used in high-fineness pulverizing (ultra-fine grinding) operations, suitable for ultra-fine grinding of most materials; grinding is mainly used in ultra-fine grinding or ultra-large pulverizing equipment, suitable for further pulverization after the initial crushing operation.

[0003] According to patent authorization announcement number CN220126406U, a hammer mill includes a hammer mill body, a feed inlet on one side of the upper part of the hammer mill body, a fixed handle below the feed inlet, a motor at the rear end of the hammer mill body, the motor being mounted above a motor base, a protective cover on top of the motor base, a shock-absorbing base plate at the bottom of the hammer mill body, a movable base below the shock-absorbing base plate, and a center-of-gravity stabilizing plate at the center between the movable base and the shock-absorbing base plate. In this utility model, a large shock-absorbing spring is located at the center of the center-of-gravity stabilizing plate, and the weight inside the center-of-gravity stabilizing plate is increased or decreased by the number of metal weight plates, which can be operated according to usage requirements. By adding weight to the bottom, the center of gravity of the movable base is increased, making it more stable and providing a certain auxiliary effect in shock absorption, thus increasing the anti-vibration effect.

[0004] However, in existing hammer mills, stones are scattered when crushing them. These scattered stones impact the inner wall of the machine, causing damage and affecting the machine's performance and lifespan. In addition, most existing hammer mills do not have the function of screening the crushed stones. The stones are mixed together, and larger stones need to be screened by an external screening machine, which is not only troublesome but also reduces work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a hammer mill that solves the problems of protecting the inner wall of the hammer mill and classifying stones.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hammer mill, comprising a casing, a feed hopper fixedly connected to the upper end of the casing, a rotating shaft rotatably connected inside the casing, a collar fixedly connected to the rotating shaft, multiple reinforcing blocks fixedly connected to the collar, hammers fixedly connected to the reinforcing blocks, a protective mechanism provided inside the casing, a screening mechanism provided at the lower end of the casing, multiple support legs fixedly connected to the lower end of the casing, and support blocks fixedly connected to the lower ends of the support legs.

[0007] Preferably, the protective mechanism includes a protective cover, which is fixedly connected to the inside of the housing. The protective cover is made of a material such as sponge, and an inner box is fixedly connected to the inner wall of the protective cover. The inner box is located inside the housing.

[0008] Preferably, the inner box has multiple protrusions fixedly connected inside, and each protrusion is fixedly connected to a crushing blade. The crushing blade is located inside the inner box, and the protective cover and the upper end of the inner box are respectively provided with feeding holes.

[0009] Preferably, the protrusion is fixedly connected to a connecting shaft, one end of which is fixedly connected to the inside of the housing, and the connecting shaft passes through the protective cover and the inner box.

[0010] Preferably, the screening mechanism includes a screening box, a discharge cylinder is fixedly connected to the lower end of the screening box, and an oblique hole is provided on the right side of the screening box.

[0011] Preferably, a discharge plate is fixedly connected to the right side of the screening box, and multiple baffles are fixedly connected to the right side of the screening box, with the baffles fixedly connected to the front and rear sides of the upper end of the discharge plate.

[0012] Preferably, a filter screen is fixedly connected inside the screening box, and a spring plate is fixedly connected to the upper right side of the inside of the screening box, with the spring plate positioned above the filter screen.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a protective cover installed at the connection between the machine casing and the inner box to isolate the machine casing and the inner box. The protective cover is relatively thick and has good protection. The setting of the crushing blade further crushes the stones, increases the crushing effect, and avoids large stones from splashing and hitting the inner box, reducing indirect damage to the machine casing. All of these measures enhance the protection of the machine casing.

[0015] 2. This utility model uses a filter screen inside the screening box to screen the stones. After screening, large stones move through the filter screen to the inclined hole and are discharged through the inclined hole to the discharge plate. Smaller stones that pass through the filter screen are discharged through the discharge cylinder, thus achieving the effect of screening stones of different sizes. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model has a partial three-dimensional structure. Figure 1 ;

[0018] Figure 3 This utility model has a partial three-dimensional structure. Figure 2 ;

[0019] Figure 4 This utility model has a partial three-dimensional structure. Figure 3 ;

[0020] Figure 5 This is a partial sectional view of the overall structure of this utility model.

[0021] In the diagram: 1. Casing; 2. Feed hopper; 3. Rotary shaft; 4. Collar ring; 5. Reinforcing block; 6. Hammer blade; 7. Protective mechanism; 8. Screening mechanism; 9. Support leg; 10. Support block; 71. Protective cover; 72. Inner box; 73. Protrusion; 74. Crushing blade; 75. Feeding hole; 76. Connecting shaft; 81. Screening box; 82. Discharge cylinder; 83. Inclined hole; 84. Discharge plate; 85. Baffle; 86. Filter screen; 87. Spring plate. 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] Please see Figure 1 , Figure 4 , Figure 5A hammer mill includes a casing 1. A feed hopper 2 is fixedly connected to the upper end of the casing 1. The feed hopper 2 is existing technology and facilitates feeding materials into the inner box 72. This technical solution will not elaborate further. A rotating shaft 3 is rotatably connected inside the casing 1. The rotating shaft 3 is driven to rotate by an external motor. This is also existing technology and will not elaborate further. A collar 4 is fixedly connected to the rotating shaft 3. Multiple reinforcing blocks 5 are fixedly connected to the collar 4. The reinforcing blocks 5 reinforce the installation of the hammers 6. The hammers 6 are fixedly connected to the reinforcing blocks 5. A protective mechanism 7 is provided inside the casing 1. A screening mechanism 8 is provided at the lower end of the casing 1. Multiple support legs 9 are fixedly connected to the lower end of the casing 1. Support blocks 10 are fixedly connected to the lower end of the support legs 9. The support legs 9 and support blocks 10 respectively support the casing 1. This technical solution only improves the shortcomings of the existing technology mentioned in the background technology. Other technologies are existing technology and will not be elaborated further.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 The protective mechanism 7 includes a protective cover 71, which is fixedly connected to the inside of the housing 1. The protective cover 71 is made of a material such as sponge. An inner box 72 is fixedly connected to the inner wall of the protective cover 71. The inner box 72 is located inside the housing 1. Multiple protrusions 73 are fixedly connected to the inside of the inner box 72. A crushing blade 74 is fixedly connected to the protrusions 73. The crushing blade 74 is located inside the inner box 72. Feeding holes 75 are opened at the upper ends of the protective cover 71 and the inner box 72 respectively. A connecting shaft 76 is fixedly connected to the protrusions 73. The installation of the crushing blade 74 is reinforced by the setting of the connecting shaft 76, and the crushing blade 74 is fixedly installed on the inner wall of the housing 1. One end of the connecting shaft 76 is fixedly connected to the inside of the housing 1. The connecting shaft 76 passes through the protective cover 71 and the inner box 72.

[0025] Please see Figure 1 , Figure 5 The screening mechanism 8 includes a screening box 81, a discharge cylinder 82 fixedly connected to the lower end of the screening box 81, an inclined hole 83 on the right side of the screening box 81, a discharge plate 84 fixedly connected to the right side of the screening box 81, and multiple baffles 85 fixedly connected to the right side of the screening box 81. The baffles 85 are used to block the upper end of the discharge plate 84 from falling from the upper end of the discharge plate 84 during discharge. The baffles 85 are fixedly connected to the upper end of the discharge plate 84 on both sides. A filter screen 86 is fixedly connected inside the screening box 81. A spring plate 87 is fixedly connected to the upper right side of the inside of the screening box 81. The spring plate 87 is used to block the stones from falling to the left side of the inclined hole 83 and being discharged directly through the inclined hole 83, thus affecting the screening effect. The spring plate 87 is located above the filter screen 86.

[0026] The specific implementation process of this utility model is as follows: In use, the existing motor is started, which makes the rotating shaft 3 rotate. Then the rotating shaft 3 drives the collar 4 to rotate, which in turn drives the hammer blade 6 to rotate. Then the stones are put into the feeding hopper 2 and then into the inner box 72 through the feeding hopper 2. By colliding with the rotating hammer blade 6, the stones can be crushed. Then the stones are splashed and splashed into the inner box 72 and the crushing blade 74, which crushes them again. The crushed stones fall into the screening box 81 and are then filtered through the filter screen 86. The small stones after filtering fall into the discharge cylinder 82 through the filter screen 86 and are discharged through the discharge cylinder 82. At the same time, the large stones on the filter screen 86 move to the inclined hole 83 through the filter screen 86 and are then conveyed to the upper end of the discharge plate 84 and discharged through the discharge plate 84, thereby achieving the effect of classifying stones of different sizes.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hammer mill, comprising a casing (1), characterized in that: The upper end of the housing (1) is fixedly connected to a feed hopper (2), the inside of the housing (1) is rotatably connected to a rotating shaft (3), the rotating shaft (3) is fixedly connected to a collar (4), the collar (4) is fixedly connected to multiple reinforcing blocks (5), the reinforcing blocks (5) are fixedly connected to hammers (6), the inside of the housing (1) is provided with a protective mechanism (7), the lower end of the housing (1) is provided with a screening mechanism (8), the lower end of the housing (1) is fixedly connected to multiple support legs (9), and the lower end of the support legs (9) is fixedly connected to a support block (10).

2. The hammer mill according to claim 1, characterized in that: The protective mechanism (7) includes a protective cover (71), which is fixedly connected to the inside of the housing (1). The material of the protective cover (71) is a sponge or similar material. An inner box (72) is fixedly connected to the inner wall of the protective cover (71), and the inner box (72) is located inside the housing (1).

3. A hammer mill according to claim 2, characterized in that: The inner box (72) is fixedly connected to a plurality of protrusions (73), and the protrusions (73) are fixedly connected to a crushing blade (74). The crushing blade (74) is located inside the inner box (72). The protective cover (71) and the upper end of the inner box (72) are respectively provided with feeding holes (75).

4. A hammer mill according to claim 3, characterized in that: The protrusion (73) is fixedly connected to a connecting shaft (76), one end of which is fixedly connected to the inside of the housing (1), and the connecting shaft (76) passes through the protective cover (71) and the inner box (72).

5. A hammer mill according to claim 1, characterized in that: The screening mechanism (8) includes a screening box (81), and a discharge cylinder (82) is fixedly connected to the lower end of the screening box (81). An oblique hole (83) is provided on the right side of the screening box (81).

6. A hammer mill according to claim 5, characterized in that: A discharge plate (84) is fixedly connected to the right side of the screening box (81), and a plurality of baffles (85) are fixedly connected to the right side of the screening box (81). The baffles (85) are fixedly connected to the front and rear sides of the upper end of the discharge plate (84).

7. A hammer mill according to claim 5, characterized in that: A filter screen (86) is fixedly connected inside the screening box (81), and a spring plate (87) is fixedly connected to the upper right side of the screening box (81). The spring plate (87) is located at the upper end of the filter screen (86).

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