Straw crushing and screening device

Abstract

The utility model provides a straw smashing and screening device, and belongs to the technical field of straw smashing. A straw smashing and screening device comprises a smashing box, smashing rollers are symmetrically and rotationally connected into the smashing box, a cutting-off assembly, an inclined screen and a cam shaft are arranged in the smashing box, a driving assembly is arranged on one outer side wall of the smashing box, the cutting-off assembly comprises a rotating rod and a cutting-off tool, the driving assembly comprises a motor, and the output end of the motor is fixedly connected with a main belt wheel. One end of the rotating rod and one end of the cam shaft are provided with driven belt wheels, and matched belts are arranged between the driving belt wheel and the driven belt wheels. Through the driving assembly, the work of the crushing roller, the cutting assembly and the cam shaft can be realized through a single motor, the comprehensive cost is effectively reduced, and the resource utilization rate is improved; and the cutting-off assembly and the rotating rod rotate to drive the cutting-off tool to rotate, so that the whole straw can be preliminarily cut into multiple sections, subsequent smashing of the smashing roller is facilitated, and the smashing efficiency is effectively improved.

Description

Technical Field

[0001] The utility model provides a straw crushing and screening device, belonging to the technical field of straw crushing. Background Art

[0002] The straw crusher can crush combustible crop waste such as corn stalks, straw, peanut skins, bean stalks, and firewood, preventing these crop straws from being burned in vain, effectively protecting the environment, and effectively developing renewable energy. The machine has reliable performance, simple and convenient operation, and can be produced using a wide range of raw materials, including corn stalks, straw, peanut skins, bean stalks, and firewood.

[0003] Existing straw crushers can basically meet the needs of use. In order to facilitate the screening of crushed straw of different sizes, a screen is usually added to the straw crusher. During use, the mesh of the screen is often blocked by straw. The most common practice is to use a vibration component to vibrate to prevent the mesh from being blocked. However, since the vibration component also needs to be equipped with a corresponding motor to drive it, it will inevitably increase the overall cost. In addition, due to the lack of a corresponding cutting component, the efficiency of directly crushing the straw as a whole is often relatively low. Based on this, the utility model provides a straw crushing and screening device. Utility Model Content

[0004] The technical problems solved by the utility model are that: the vibration component of the screen needs to be equipped with a motor for driving, which leads to an increase in comprehensive cost; and the efficiency of directly crushing the straw as a whole is often relatively low.

[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a straw crushing and screening device, including a crushing box, a crushing roller symmetrically connected to the crushing box, a cutting assembly placed above the crushing roller, and an inclined screen placed below the crushing roller. The crushing box is provided with a cam shaft placed at the bottom of the inclined upper end of the inclined screen, and an outer wall of the crushing box is provided with a driving assembly, and the cutting assembly includes a rotating rod and a cutting knife circumferentially arranged on the rotating rod. The driving assembly includes a motor, and the output end of the motor is fixedly connected to a main pulley fixedly connected to the end of the crushing roller on one side, and the rotating rod and one end of the camshaft are both provided with a slave pulley, and a matching belt is provided between the main pulley and the slave pulley.

[0006] Furthermore, a feed port is provided on the top of the crushing box, a discharge port is provided on the bottom of the crushing box, and a discharge port is provided on one side wall of the crushing box.

[0007] Furthermore, the inner bottom wall of the discharge port is provided with a rotating shaft which is rotatably connected to the bottom of the inclined lower end of the inclined screen.

[0008] Furthermore, a material baffle plate is provided on the inner side wall of the crushing box and is placed above the crushing roller.

[0009] Furthermore, the motor is fixedly mounted on the outer side wall of the crushing box, one end of the crushing roller passes through the side wall of the crushing box and is provided with a gear, the gears are meshed and connected, and the other end of the crushing roller is rotatably connected to the other side wall of the crushing box.

[0010] Furthermore, one end of the rotating rod and the cam shaft passes through one side wall of the crushing box and is fixedly connected to the pulley, and the other end of the rotating rod and the cam shaft is rotatably connected to the other side wall of the crushing box.

[0011] Beneficial effects of the utility model:

[0012] Through the driving component, the operation of the crushing roller, cutting component and camshaft can be realized by a single motor, which effectively reduces the overall cost and improves resource utilization; through the cutting component, the rotating rod rotates to drive the cutting knife to rotate, and then the straw can be initially cut into multiple sections, which is convenient for subsequent crushing by the crushing roller and effectively improves the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a straw crushing and screening device of the utility model Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of a straw crushing and screening device of the utility model Figure 2 .

[0015] Figure 3 This is a schematic diagram of a straw crushing and screening device of the utility model. Figure 1 .

[0016] Figure 4 It is a plan view of a straw crushing and screening device of the utility model.

[0017] 1. Crushing box; 2. Crushing roller; 3. Cutting assembly; 4. Inclined screen; 5. Camshaft; 6. Drive assembly; 7. Motor; 8. Main pulley; 9. Gear; 10. Slave pulley; 11. Belt; 12. Rotating rod; 13. Cutting knife; 14. Feed inlet; 15. Discharge outlet; 16. Discharge outlet; 17. Rotating shaft; 18. Baffle. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] According to the attached Figure 1 、 4As shown: The utility model provides a straw crushing and screening device: it includes a crushing box 1, in which a crushing roller 2 is symmetrically connected for rotation. The inner wall of the crushing box 1 is provided with a baffle plate 18 placed above the side of the crushing roller 2 to prevent uncrushed straw from passing through the gap between the crushing box 1 and the crushing roller 2. The crushing box 1 is provided with a cutting assembly 3 placed above the crushing roller 2 and an inclined screen 4 placed below the crushing roller 2. The top of the crushing box 1 is provided with a feed port 14, the bottom of the crushing box 1 is provided with a discharge port 15, and one side wall of the crushing box 1 is provided with a discharge port 16. The inner bottom wall of the discharge port 16 is provided with a rotating shaft 17 rotatably connected to the bottom of the oblique lower end of the inclined screen 4, to ensure that the inclined screen 4 can effectively rotate so as to vibrate it.

[0020] According to the attached Figure 4 As shown: the crushing box 1 is provided with a cam shaft 5 placed at the bottom of the upper oblique end of the inclined screen 4, and the cutting assembly 3 includes a rotating rod 12 and a cutting knife 13 circumferentially arranged on the rotating rod 12. The rotating rod 12 and one end of the cam shaft 5 pass through one side wall of the crushing box 1, and the other ends of the rotating rod 12 and the cam shaft 5 are rotatably connected to the other side wall of the crushing box 1. The rotation of the rotating rod 12 drives the cutting knife 13 to rotate, thereby being able to preliminarily cut the straw into multiple segments as a whole, making it convenient for the subsequent crushing roller 2 to be crushed, and effectively improving the crushing efficiency.

[0021] According to the attached Figure 2 、 3 As shown: a driving assembly 6 is provided on the outer wall of the crushing box 1, and the driving assembly 6 includes a motor 7. The output end of the motor 7 is fixedly connected to a main pulley 8 fixedly connected to the end of one side of the crushing roller 2. The rotating rod 12 and one end of the camshaft 5 are both provided with a slave pulley 10. A matching belt 11 is provided between the main pulley 8 and the slave pulley 10. The motor 7 is fixedly installed on the outer wall of the crushing box 1, and one end of the crushing roller 2 passes through the side wall of the crushing box 1 and is provided with a gear 9. The gears 9 are meshed and connected. The other end of the crushing roller 2 is rotatably connected to the other side wall of the crushing box 1. The starting motor 7 drives the main pulley 8 to rotate. Under the action of the belt 11 matching between the main pulley 8 and the slave pulley 10, the main pulley 8 rotates to rotate the slave pulley 10, thereby realizing the rotation of the rotating rod 12 and the camshaft 5, effectively reducing the overall cost and improving resource utilization.

[0022] Principle of the utility model

[0023] When in use, the crushed straw can be added to the feeding port 14 of the crushing box 1, and the driving component 6 is used to start the motor 7 to drive the main pulley 8 to rotate, thereby driving the connected crushing roller 2 to rotate, and then driving the gear 9 on the crushing roller 2 to rotate. Since the gears 9 are meshed and connected, they drive another gear 9 to rotate, and then drive the other crushing roller 2 to rotate, thereby driving the crushing roller 2 to drive the crushing roller 2. Under the action of the belt 11 matched between the main pulley 8 and the slave pulley 10, the main pulley 8 rotates to make the slave pulley 10 rotate, which can realize the rotation of the rotating rod 12 and the camshaft 5. The rotation of the rotating rod 12 drives the cutting knife 13 to rotate, thereby can preliminarily cut the straw into multiple sections, convenient for the subsequent crushing roller 2 to crush, effectively improving the crushing efficiency, the camshaft 5 rotates, and under the action of the rotating shaft 17, the position of the inclined screen 4 changes, thereby making the inclined screen vibrate reciprocatingly, and the work of the crushing roller 2, the cutting component 3, and the camshaft 5 can be realized by a single motor, effectively reducing the overall cost and improving resource utilization.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A straw crushing and screening device, comprising a crushing box (1), wherein a crushing roller (2) is symmetrically connected to the crushing box (1), and characterized in that: The crushing box (1) is provided with a cutting assembly (3) placed above the crushing roller (2) and an inclined screen (4) placed below the crushing roller (2). The crushing box (1) is provided with a cam shaft (5) placed at the bottom of the inclined upper end of the inclined screen (4). An outer wall of the crushing box (1) is provided with a driving assembly (6). The cutting assembly (3) includes a rotating rod (12) and a cutting knife (13) circumferentially arranged on the rotating rod (12). The driving assembly (6) includes a motor (7). The output end of the motor (7) is fixedly connected to a main pulley (8) fixedly connected to one end of the crushing roller (2). The rotating rod (12) and one end of the cam shaft (5) are both provided with a slave pulley (10). A matching belt (11) is provided between the main pulley (8) and the slave pulley (10).

2. The straw crushing and screening device according to claim 1, characterized in that: The top of the pulverizing box (1) is provided with a feed port (14), the bottom of the pulverizing box (1) is provided with a discharge port (15), and a side wall of the pulverizing box (1) is provided with a discharge port (16).

3. The straw crushing and screening device according to claim 2, characterized in that: The inner bottom wall of the discharge port (16) is provided with a rotating shaft (17) which is rotatably connected to the bottom of the inclined lower end of the inclined screen (4).

4. The straw crushing and screening device according to claim 1, characterized in that: A material blocking plate (18) is provided on the inner side wall of the crushing box (1) and is placed above the crushing roller (2).

5. The straw crushing and screening device according to claim 1, characterized in that: The motor (7) is fixedly mounted on the outer side wall of the crushing box (1); one end of the crushing roller (2) passes through the side wall of the crushing box (1) and is provided with a gear (9); the gears (9) are meshed and connected with each other; the other end of the crushing roller (2) is rotatably connected to the other side wall of the crushing box (1).

6. The straw crushing and screening device according to claim 1, characterized in that: One end of the rotating rod (12) and the cam shaft (5) passes through one side wall of the crushing box (1) and is fixedly connected to the pulley (10), and the other end of the rotating rod (12) and the cam shaft (5) is rotatably connected to the other side wall of the crushing box (1).

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