Straw particle crusher

Abstract

The utility model discloses a straw particle crusher, relates to the technical field of crushers, and provides the following scheme aiming at the problems that in the prior art, straws which are not fully crushed need to be crushed again manually, so that the use steps are increased, and time and labor are wasted, and the straw particle crusher comprises a crushing box, a first crushing roller and a second crushing roller which are meshed with each other are rotationally connected into the crushing box, and one end of the first crushing roller is connected with a servo motor. According to the straw crushing device, the output shaft of the servo motor drives the first crushing roller and the second crushing roller to rotate so as to crush straws entering the crushing box, and meanwhile, the rotating first crushing roller drives the screen frame to move up and down in the crushing box through the driving mechanism; completely crushed straw particles fall down and are discharged through screening of the screen frame, and straw particles which are not completely crushed are thrown to the rotating first crushing roller and the rotating second crushing roller to be crushed again under the upward action of the screen frame.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a straw pellet crusher. Background Technology

[0002] Straw refers to the remaining stems, branches, or leaves of plants after crop harvest, typically from crops such as rice, wheat, corn, and soybeans. Rich in cellulose and cellulose content, straw can be used for various purposes, including as feed, biomass energy, and organic fertilizer. In agricultural production, straw plays multiple roles, including maintaining soil moisture, improving soil structure, providing shade and insulation, and reducing soil erosion. When straw is no longer used for soil cover, it can be pulverized using a straw crusher and converted into products such as feed, mixtures, biomass fuel, and organic fertilizer. Furthermore, straw is an important source of renewable energy. By gasifying, fermenting, and compressing straw, it can produce biomass gas and biomass pellets, providing an environmentally friendly and sustainable alternative to traditional fossil fuels. In short, straw, the remaining stems, branches, or leaves of plants after crop harvest, has multiple uses and significant resource value.

[0003] Most existing straw crushers can only perform preliminary crushing of straw, and the crushed straw is often not completely crushed. It is often necessary to manually crush the insufficiently crushed straw again, which increases the number of steps and is time-consuming and labor-intensive. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a straw pellet crusher that overcomes the deficiencies of existing technologies and effectively solves the problem that existing technologies require manual re-crushing of insufficiently crushed straw, which increases the number of steps involved and is therefore time-consuming and labor-intensive.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A straw pellet crusher includes a crushing box. Inside the crushing box, a first crushing roller and a second crushing roller are rotatably connected and mesh with each other. One end of the first crushing roller is connected to a servo motor. A screen frame is provided below the first and second crushing rollers, and a drive mechanism is connected between the screen frame and the first crushing roller. The drive mechanism includes a mounting frame, a rotating rod rotatably connected to the inner wall of one side of the mounting frame, a turntable fixed to one end of the rotating rod, a connector rotatably connected to the outer wall of one side of the turntable, a fixing block rotatably connected to one end of the connector, a connecting block fixed to the bottom of the fixing block, and baffles fixed to the upper and lower ends of the connecting block.

[0007] The output shaft of the servo motor drives the first crushing roller to rotate. The rotating first crushing roller drives the second crushing roller to rotate through meshing gears, thereby crushing the straw entering the crushing box. At the same time, the rotating first crushing roller drives the rotating rod to rotate through the belt pulley connected to the transmission. The rotating rod drives the turntable to rotate. The rotating turntable drives the connecting block to move up and down through the connecting parts and the fixed block, thereby driving the screen frame to move up and down in the crushing box. The completely crushed straw particles fall downward through the screen frame and are discharged. The straw particles that are not completely crushed are thrown towards the rotating first and second crushing rollers for further crushing under the upward force of the screen frame.

[0008] Preferably, the top of the crushing box is connected to a feed hopper, and both outer walls of the crushing box are fixed with support legs.

[0009] The feed hopper facilitates the addition of straw to the crushing chamber, and the support legs elevate the crushing chamber for easy discharge.

[0010] Preferably, the back of the crushing box is fixed with a fixing frame, and the servo motor is installed on the inner wall of one end of the fixing frame.

[0011] The servo motor is mounted and secured using a mounting bracket.

[0012] Preferably, the ends of the first crushing roller and the second crushing roller furthest from the servo motor are both fitted with meshing gears.

[0013] The rotating first crushing roller drives the second crushing roller to rotate through meshing gears, thereby crushing the straw.

[0014] Preferably, both the shaft of the first crushing roller and the wall of the rotating rod are fitted with pulleys, and the two pulleys are connected by belt drive.

[0015] The rotating first crushing roller drives the rotating rod to rotate through the belt pulley connected by the transmission. The whole is driven by a single servo motor, which helps to save energy.

[0016] Preferably, the crushing box has sliding grooves on both the front and back sides, and the sliding grooves and the connecting blocks are in sliding fit.

[0017] The connecting block moves up and down along the chute, which in turn drives the screen frame to move up and down inside the crushing box.

[0018] Preferably, slots are provided at the top and bottom of the groove, and the slots and baffles are interlocked.

[0019] The baffle moves up and down with the connecting block, blocking the opening of the chute and preventing broken straw particles from being discharged from the opening.

[0020] The beneficial effects of this utility model are as follows:

[0021] The output shaft of the servo motor drives the first and second crushing rollers to rotate, thereby crushing the straw entering the crushing box. At the same time, the rotating first crushing roller drives the screen frame to move up and down in the crushing box through the drive mechanism. The fully crushed straw particles fall downward through the screen frame and are discharged. The straw particles that are not fully crushed are thrown against the rotating first and second crushing rollers for further crushing under the upward force of the screen frame. This effectively solves the problem that the existing technology requires manual re-crushing of straw that has not been fully crushed, which increases the number of steps and is therefore time-consuming and labor-intensive. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a straw pellet crusher proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the crushing box of a straw pellet crusher proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the back structure of the crushing box of a straw pellet crusher proposed in this utility model;

[0025] Figure 4 This is a structurally disassembled schematic diagram of the drive mechanism of a straw pellet crusher proposed in this utility model.

[0026] In the diagram: 1. Crushing box; 2. Feed hopper; 3. Support leg; 4. First crushing roller; 5. Second crushing roller; 6. Fixing frame; 7. Servo motor; 8. Screen frame; 9. Drive mechanism; 10. Mounting frame; 11. Rotating rod; 12. Turntable; 13. Connecting piece; 14. Fixing block; 15. Connecting block; 16. Baffle. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example:

[0029] Reference Figure 1-4A straw pellet crusher includes a crushing box 1. Inside the crushing box 1, a first crushing roller 4 and a second crushing roller 5 are rotatably connected and mesh with each other. One end of the first crushing roller 4 is connected to a servo motor 7. A screen frame 8 is arranged below the first crushing roller 4 and the second crushing roller 5. A drive mechanism 9 is connected between the screen frame 8 and the first crushing roller 4. The drive mechanism 9 includes a mounting frame 10, a rotating rod 11 rotatably connected to the inner wall of one side of the mounting frame 10, a turntable 12 fixed to one end of the rotating rod 11, a connecting piece 13 rotatably connected to the outer wall of one side of the turntable 12, a fixing block 14 rotatably connected to one end of the connecting piece 13, a connecting block 15 fixed to the bottom of the fixing block 14, and baffles 16 fixed to the upper and lower ends of the connecting block 15.

[0030] The top of the crushing box 1 is connected to the feed hopper 2, and the outer walls on both sides of the crushing box 1 are fixed with support legs 3. The feed hopper 2 facilitates the addition of straw into the crushing box 1, and the support legs 3 raise the crushing box 1 to facilitate material discharge. The back of the crushing box 1 is fixed with a fixing frame 6, and the servo motor 7 is installed on the inner wall of one end of the fixing frame 6. The servo motor 7 is installed and fixed through the fixing frame 6. The ends of the first crushing roller 4 and the second crushing roller 5 away from the servo motor 7 are both fitted with meshing gears. The rotating first crushing roller 4 drives the second crushing roller 5 to rotate through the meshing gears, thereby crushing the straw.

[0031] The shaft of the first crushing roller 4 and the wall of the rotating rod 11 are both fitted with pulleys. The two pulleys are connected by belt drive. The rotating first crushing roller 4 drives the rotating rod 11 to rotate through the belt pulleys connected by the drive. The whole is driven by a single servo motor 7, which helps to save energy. The front and back of the crushing box 1 are provided with sliding grooves. The sliding grooves and the connecting block 15 form a sliding fit. The connecting block 15 moves up and down along the sliding groove, thereby driving the screen frame 8 to move up and down in the crushing box 1. The top and bottom of the sliding groove are provided with slots. The slots and the baffle 16 form an insertion fit. The baffle 16 moves up and down with the connecting block 15. The baffle 16 blocks the opening of the sliding groove, thereby preventing the broken straw particles from being discharged from the opening of the sliding groove.

[0032] Working principle:

[0033] During operation, the output shaft of the servo motor 7 drives the first crushing roller 4 to rotate. The rotating first crushing roller 4 drives the second crushing roller 5 to rotate through meshing gears, thereby crushing the straw entering the crushing box 1. At the same time, the rotating first crushing roller 4 drives the rotating rod 11 to rotate through the belt pulley connected to the transmission. The rotating rod 11 drives the turntable 12 to rotate. The rotating turntable 12 drives the connecting block 15 to move up and down through the connecting piece 13 and the fixed block 14, thereby driving the screen frame 8 to move up and down in the crushing box 1. The completely crushed straw particles fall downward through the screening of the screen frame 8 and are discharged. The straw particles that are not completely crushed are thrown towards the rotating first crushing roller 4 and the second crushing roller 5 for further crushing under the upward action of the screen frame 8.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straw pellet crusher, comprising a crushing chamber (1), characterized in that, The crushing box (1) is rotatably connected to a first crushing roller (4) and a second crushing roller (5) that mesh with each other. One end of the first crushing roller (4) is connected to a servo motor (7). A screen frame (8) is provided below the first crushing roller (4) and the second crushing roller (5). A drive mechanism (9) is connected between the screen frame (8) and the first crushing roller (4). The drive mechanism (9) includes a mounting frame (10), a rotating rod (11) rotatably connected to the inner wall of one side of the mounting frame (10), a turntable (12) fixed to one end of the rotating rod (11), a connector (13) rotatably connected to the outer wall of one side of the turntable (12), a fixing block (14) rotatably connected to one end of the connector (13), a connecting block (15) fixed to the bottom of the fixing block (14), and baffles (16) fixed to the upper and lower ends of the connecting block (15).

2. The straw pellet crusher according to claim 1, characterized in that, The top of the crushing box (1) is connected to a feed hopper (2), and both sides of the outer wall of the crushing box (1) are fixed with support legs (3).

3. A straw pellet crusher according to claim 1, characterized in that, The back of the crushing box (1) is fixed with a fixing frame (6), and the servo motor (7) is installed on the inner wall of one end of the fixing frame (6).

4. A straw pellet crusher according to claim 1, characterized in that, Both the first crushing roller (4) and the second crushing roller (5) have meshing gears fixedly fitted to the ends of the rollers away from the servo motor (7).

5. A straw pellet crusher according to claim 1, characterized in that, The shaft of the first crushing roller (4) and the wall of the rotating rod (11) are both fitted with pulleys, and the two pulleys are connected by belt drive.

6. A straw pellet crusher according to claim 1, characterized in that, The crushing box (1) has sliding grooves on both the front and back sides, and the sliding grooves and the connecting block (15) form a sliding fit.

7. A straw pellet crusher according to claim 6, characterized in that, The top and bottom of the chute are provided with slots, and the slots and the baffle (16) are inserted into each other.

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