CN220422522U - Pre-cutting device of pulverizer - Google Patents

Abstract

The utility model discloses a pre-cutting device for a pulverizer, which includes a platform and a frame located at the upper end of the platform. The left and right ends of the frame are respectively provided with an inlet and an outlet. A conveyor belt device is provided inside the platform. The platform A pressure roller device for compacting straw is fixed on the upper end surface, and a cutting device is provided on the inside of the frame and above the discharge port. The pressure roller device includes two elastic cavity components fixed on the upper end surface of the platform. Two elastic cavity assemblies are distributed on both sides of the conveyor belt device, and the upper ends of the two elastic cavity assemblies are rotatably connected with pressure rollers. Compared with the existing technology, the advantage of this utility model is that it reduces cutting and accumulation phenomena, and the elastic cavity components The design of the component can adapt to the irregular shape of the straw. It uses the restoring force of the spring and the dead weight of the pressure roller to compact and level the straw, reducing the possibility of straw accumulation in the cutting device and ensuring a smooth cutting process.

Description

Crusher pre-cutting device

Technical field

The utility model relates to the technical field of air dust removal devices, specifically to a crusher pre-cutting device.

Background technique

In the production process of biomass pellets, straw, as a common raw material, needs to be pre-cut into appropriate sizes before crushing so that it can be better used in subsequent pellet production. However, due to the complex shape and slender characteristics of straw, traditional cutting methods are often less efficient and can easily lead to problems such as unsmooth cutting, accumulation, and blade jamming. Therefore, a more efficient and stable pre-cutting device is needed to provide better straw processing capabilities.

Utility model content

The purpose of this utility model patent is to provide a crusher pre-cutting device that uses specific structures and components to solve problems such as unsmooth cutting, accumulation, and blade jamming caused by the complicated shapes of straw.

In order to solve the above technical problems, the technical solution of the present invention is: a crusher pre-cutting device, including a platform and a frame located at the upper end of the platform. The left and right ends of the frame are respectively provided with an inlet and an outlet. The platform There is a conveyor belt device inside, and a pressure roller device for compacting straw is fixed on the upper end of the platform. A cutting device is installed on the inside of the frame and above the discharge port. The pressure roller device includes a pressure roller device fixed on the upper end of the platform. The two elastic cavity components are distributed on both sides of the conveyor belt device, and the upper ends of the two elastic cavity components are rotatably connected with a pressure roller.

Further, the elastic cavity assembly includes a cavity fixed on the upper end surface of the platform, a guide rod is plugged into the cavity, and one end of the guide rod extending into the cavity is covered with a spring, and the guide rod is inserted into the cavity. The lower end is fixedly equipped with a limit plate, and the pressure roller is rotated and installed at the upper end of the guide rod extending out of the cavity.

Further, the cutting device includes a blade slidably disposed inside the frame, and a motor fixedly disposed outside the frame. A disc is fixed at one end of the motor's drive shaft extending into the inside of the frame, and an eccentric disc is fixedly disposed on the disc. There is a connecting rod rotating on the eccentric shaft, and the other end of the connecting rod is hingedly mounted on the upper end of the blade. The motor rotates to drive the blade to reciprocate up and down to cut the straw.

Furthermore, a linear guide rail is fixed on the inner side of the frame, and a slider that matches and slides with the linear guide rail is fixed on the side of the blade.

Further, a cutting table is provided on the upper end surface of the platform and directly below the blade.

Compared with the existing technology, the advantages of this utility model are:

1) Improve cutting efficiency: By using a combination of conveyor belt device and cutting device, continuous transportation and rapid cutting of straw can be achieved, improving cutting efficiency.

2) Reduce the phenomenon of cutting and accumulation: The design of the elastic cavity component can adapt to the irregular shape of the straw, using the restoring force of the spring and the self-weight of the pressure roller to compact and level the straw, reducing the possibility of straw accumulation in the cutting device. , ensuring the smooth progress of the cutting process.

3) Prevent blade jamming: By matching the blade with the linear guide rail and slider, the stable movement of the blade is ensured, reducing the risk of blade jamming and improving cutting stability.

4) Simplified operation and maintenance: The device has a simple design and is easy to operate, and the up and down reciprocating motion of the blade is driven by a motor, which reduces the labor intensity of the operator and reduces the need for maintenance and upkeep.

To sum up, the pulverizer pre-cutting device patented by the present utility model improves cutting efficiency and ensures the stability of cutting by solving problems such as accumulation and jamming during straw cutting, and is of important practical significance for the production of biomass pellets. value and economic benefits.

Description of the drawings

Figure 1 is a schematic front structural view of the pre-cutting device of the pulverizer of the present invention.

Figure 2 is a schematic left structural diagram of the pre-cutting device of the pulverizer of the present invention.

Figure 3 is a schematic left structural view of the pressure roller device of the pre-cutting device of the pulverizer of the present invention.

As shown in the figure: 1. Platform; 2. Frame; 3. Feed port; 4. Discharge port; 5. Conveyor belt device; 6. Pressure roller; 7. Cavity; 8. Guide rod; 9. Spring; 10 , Limit plate; 11. Blade; 12. Motor; 13. Disc; 14. Eccentric shaft; 15. Connecting rod; 16. Linear guide rail; 17. Slider; 18. Cutting table; 19. Conveyor belt device.

Detailed ways

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, structure and operation. Therefore, it cannot be understood as a limitation of the present invention.

In the description of the present utility model, it should also be noted that, unless otherwise explicitly stipulated and limited, the terms "provided", "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be A fixed connection can also be a detachable connection or an integrated connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The utility model will be further described in detail below in conjunction with the accompanying drawings.

With reference to Figures 1 to 3, the crusher pre-cutting device includes a platform 1 and a frame 2 located at the upper end of the platform. The left and right ends of the frame 2 are respectively provided with an inlet 3 and an outlet 4. The platform 1 is equipped with a conveyor belt device 19 inside, and a pressure roller device for compacting straw is fixed on the upper end surface of the platform 1. A cutting device is installed inside the frame 2 and above the discharge port 4. The pressure roller device includes a fixed Two elastic cavity components 5 are provided on the upper end surface of the platform 1. The two elastic cavity components 5 are distributed on both sides of the conveyor belt device 19, and a pressure roller 6 is rotatably connected between the upper ends of the two elastic cavity components 5. A linear guide rail 16 is fixed on the inner side of the frame 2 , a slider 17 that matches and slides with the linear guide rail 16 is fixed on the side of the blade 11 , and a cutting table 18 is installed on the upper end of the platform 1 and directly below the blade 11 .

The elastic cavity component 5 includes a cavity 7 fixed on the upper end surface of the platform 1. A guide rod 8 is inserted and connected inside the cavity 7. One end of the guide rod 8 extends into the cavity 7 and is covered with a guide rod 8. The spring 9 and the lower end of the guide rod 8 are fixed with a limit plate 10, and the pressure roller 6 is rotated and installed at the upper end of the guide rod 8 extending out of the cavity 7.

The cutting device includes a blade 11 slidably disposed inside the frame 2, and a motor 12 fixedly disposed outside the frame 2. The driving shaft of the motor 12 extends into the frame 2 and is fixed with a disc 13 at one end thereof. An eccentric shaft 14 is fixed on the upper end of the blade, and a connecting rod 15 is rotated on the eccentric shaft 14. The other end of the connecting rod 15 is hingedly mounted on the upper end of the blade 11. The blade 11 is driven by the rotation of the motor to reciprocate up and down to cut the straw.

Specific embodiments of the utility model: Before using the utility model, first connect the external power supply, and the straw enters the frame 2 from the feed port 3. Driven by the conveyor belt device 19, the straw moves toward the inside of the frame 2, and the conveyor belt device 19 automatically With a motor, the overall structure is an existing mature technology, so it will not be described in detail in this plan. Driven by the conveyor belt device 19, the straw first passes through the pressure roller device. Under the action of the pressure roller 6 and the spring 9, the straw is compacted and completely level, then enter the cutting part, start the motor 12, drive the disk 13 to rotate, thereby driving the blade 11 to reciprocate up and down under the action of the connecting rod 15 to cut the straw passing underneath it, and the cut straw is discharged from the discharge port 4 , enter the next step of crushing.

The present utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited thereto. In short, if a person of ordinary skill in the art is inspired by it and without departing from the creative purpose of the present utility model, can design a similar structural method and embodiment to the technical solution without creativity, they shall all fall under the protection of the present utility model. scope.

Claims (3)

1. Crusher pre-cutting device, including a platform (1) and a frame (2) located at the upper end of the platform. The left and right ends of the frame (2) are respectively provided with an inlet (3) and an outlet (4). It is characterized in that: there is a conveyor belt device (19) inside the platform (1), a pressure roller device for compacting straw is fixed on the upper end surface of the platform (1), and the frame (2) is located inside the discharging device. There is a cutting device above the mouth (4). The pressure roller device includes two elastic cavity components (5) fixed on the upper end surface of the platform (1). The two elastic cavity components (5) are distributed on the conveyor belt device ( There are pressure rollers (6) on both sides of the two elastic cavity components (5) and rotatingly connected between the upper ends of the two elastic cavity components (5). The cutting device includes a blade (11) slidingly provided on the inside of the frame (2), and also includes The motor (12) is fixedly installed on the outside of the frame (2). The drive shaft of the motor (12) extends into the frame (2) and is fixed with a disc (13) at one end. The disc (13) is fixed with an eccentric The shaft (14) is provided with a connecting rod (15) that rotates on the eccentric shaft (14). The other end of the connecting rod (15) is hingedly mounted on the upper end of the blade (11). The blade (11) is driven by the rotation of the motor to reciprocate up and down, cutting the straw. For cutting, a linear guide rail (16) is fixed on the inner side of the frame (2), and a slider (17) that matches and slides with the linear guide rail (16) is fixed on the side of the blade (11). 2. The pulverizer pre-cutting device according to claim 1, characterized in that: the elastic cavity assembly (5) includes a cavity (7) fixed on the upper end surface of the platform (1), and the cavity (7) 7) The internal plug-in connection is provided with a guide rod (8). One end of the guide rod (8) that extends into the cavity (7) is covered with a spring (9). The lower end of the guide rod (8) is fixed with a limit plate ( 10), the pressure roller (6) is rotated and located at the upper end of the guide rod (8) extending out of the cavity (7). 3. The crusher pre-cutting device according to claim 1, characterized in that: a cutting table (18) is provided on the upper end surface of the platform (1) and directly below the blade (11).