Multistage knife assembly for high efficiency wood chippers

Abstract

The utility model discloses a high -efficient wood rubbing crusher of multistage rubbing knife group relates to wood rubbing technical field, the utility model discloses a body and the belt conveyor of setting in the bottom of the body inner chamber, the top edge of two sides of body can detachably connected with two symmetrical side plates, one end of body bottom is equipped with the first drive motor, and a plurality of first short toothed rollers and first long toothed rollers of staggered parallelism are arranged between two side plates along the feeding direction, the utility model discloses the sustained feeding of the external tooth of corresponding cooperation's first short toothed roller, second short toothed roller is gnawed wood and is fed, and the stripping, rubbing of wood in feeding is carried out to corresponding cooperation's first long toothed roller and second long toothed roller, and the second short toothed roller axle end of feeding end is cooperated with the guide groove, and the second short toothed roller of feeding end is driven along the vertical lifting of guide groove by the second telescopic part, and the end vertical lifting of driving machine cover is adjusted the occlusion gap of feeding end and the wood rubbing specification.

Description

Technical Field

[0001] This utility model relates to the field of wood crushing technology, specifically to a high-efficiency wood crusher with a multi-stage crushing blade assembly. Background Technology

[0002] Existing wood crushing equipment mainly includes wood chippers, wood chippers, and wood pulverizers. They are mainly used for chipping and crushing fibrous stalk materials such as wood, bamboo, thatch, corn stalks, and sorghum stalks. The materials to be crushed are crushed by using blades to cut the chips.

[0003] Existing wood shredders often use a fixed-angle feeding method, crushing fibrous rod-shaped materials such as wood and straw through meshing blades and drums. While automatic feeding and cutting achieve shredding, they lack the ability to adapt the spacing to different material specifications, limiting their application. Furthermore, they cannot provide full-stage pressure adjustment for wood, resulting in poor shredding quality and low efficiency. Therefore, we propose a high-efficiency wood shredder with a multi-stage shredding blade assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a high-efficiency wood shredder with a multi-stage shredder assembly in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A high-efficiency wood shredder with a multi-stage shredding blade assembly includes a machine body and a belt conveyor located at the bottom of the machine body's internal cavity. Two symmetrical side plates are detachably connected to the top edges of both sides of the machine body, with a cover housed between the two side plates. A first drive motor is located at one end of the bottom of the machine body. Several staggered first short toothed rollers and first long toothed rollers are arranged between the two side plates along the feeding direction, with adjacent first short toothed rollers and first long toothed rollers being power-linked. The first drive motor is connected to and drives the first short toothed rollers at the feeding end of the machine body. A second drive motor is detachably connected to the top surface of the cover near the feeding end of the machine body. The bottom of the cover is located along the feeding direction. A plurality of staggered second short toothed rollers and second long toothed rollers are rotatably connected, and adjacent second short toothed rollers and second long toothed rollers are poweredly linked. A second drive motor is connected to and drives the second short toothed rollers at the feeding end of the machine body. A guide groove is provided on the side of the side plate near the feeding end of the machine body. The guide groove is slidably engaged with the shaft end of the second short toothed rollers at the feeding end of the machine body. A second telescopic member is detachably connected to the top of the side plate. The second telescopic member is connected to and drives the shaft end of the second short toothed rollers at the feeding end of the machine body. A third telescopic member is hinged to the end of the machine body away from the second telescopic member. The third telescopic member is connected to and drives the end of the machine cover away from the second telescopic member.

[0007] Furthermore, the first short toothed roller has a driving gear at its shaft end, and the first long toothed roller has a driven gear at its shaft end that meshes with the driving gear. The transmission ratio between the driving gear and the driven gear is greater than 1, and adjacent first short toothed rollers are powered together by a lower transmission chain.

[0008] Furthermore, an arc-shaped fine-tuning groove is provided at the bottom of the side plate, which cooperates with the shaft end of the first long toothed roller. A first telescopic member is hinged to the side wall of the machine body, and the first telescopic member connects to and drives the shaft end of the first long toothed roller.

[0009] Furthermore, both ends of the first long toothed roller and the second short toothed roller at the feeding end are fitted with movable shaft seats, and the top and bottom of the side plate are detachably connected with guide posts that are slidably connected to the movable shaft seats. The extended ends of the first telescopic member and the second telescopic member are hinged to the movable shaft seats.

[0010] Furthermore, the feeding end of the machine body is provided with supports distributed on both sides of the belt conveyor, the supports being used to lift the end of the belt conveyor upward.

[0011] Furthermore, a protective plate is detachably connected to one end face of each of the two side plates, the protective plate being used to protect the driving gear and driven gear at the ends of the first short toothed roller and the first long toothed roller.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention uses a side plate to position and install a first short toothed roller and a first long toothed roller arranged in parallel. A machine cover positions and installs a second short toothed roller and a second long toothed roller arranged in parallel. A first drive motor drives the first short toothed roller and the first long toothed roller to rotate, and a second drive motor drives the second short toothed roller and the second long toothed roller to rotate. The wood is continuously fed by the corresponding meshing teeth of the first and second short toothed rollers. During feeding, the corresponding meshing first and second long toothed rollers peel and crush the wood. The crushed wood falls through the crushing gap into a belt conveyor, which holds the wood in place. The machine continues to output power, and through the second short toothed roller shaft end at the feeding end cooperating with the guide groove, the second telescopic component drives the second short toothed roller at the feeding end to rise and fall vertically along the guide groove, and drives the end of the machine cover to rise and fall vertically, adjusting the biting gap at the feeding end and the wood crushing specifications. Through the third telescopic component, the feeding end of the machine cover is driven to rotate around the second short toothed roller at the feeding end, adjusting the wood feeding specifications. Thus, by adjusting the angle and height of the machine cover, not only can the feeding specifications be adjusted according to the wood specifications, but the downward pressure of wood crushing can also be adjusted throughout the entire process, making it easier to adjust the wood crushing specifications and quality, and resulting in higher wood crushing processing efficiency. Attached Figure Description

[0014] Figure 1This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of the utility model in use;

[0016] Figure 3 This is a half-sectional schematic diagram of the utility model in use;

[0017] Figure 4 This is an exploded schematic diagram of this utility model;

[0018] Figure 5 This is a three-dimensional schematic diagram of the body and side plate of this utility model.

[0019] Figure 6 This is a three-dimensional schematic diagram of the first short toothed roller and the first long toothed roller cooperating in this utility model;

[0020] Figure 7 This is a three-dimensional schematic diagram of the cooperation between the second short toothed roller and the second long toothed roller in this utility model.

[0021] In the attached diagram: 1. Machine body; 2. Belt conveyor; 3. Support frame; 4. Side plate; 5. Machine cover; 6. First short toothed roller; 7. Lower fixed shaft seat; 8. First long toothed roller; 9. Fine-tuning groove; 10. Moving shaft seat; 11. First telescopic component; 12. Drive gear; 13. Driven gear; 14. First drive motor; 15. Lower input chain assembly; 16. Lower transmission chain assembly; 17. Second short toothed roller; 18. Second long toothed roller; 19. Upper fixed shaft seat; 20. Guide groove; 21. Second telescopic component; 22. Third telescopic component; 23. Guide post; 24. Locking block; 25. Second drive motor; 26. Upper input chain assembly; 27. Upper transmission chain assembly; 28. Rib plate; 29. ​​Support plate; 30. Guard plate; 31. Rotating shaft; 32. Abrasive disc; 33. Grinding teeth; 34. Tooth disc; 35. Stripping teeth. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] Please see Figure 1 - Figure 7This utility model provides a high-efficiency wood shredder with a multi-stage shredding blade assembly, including a machine body 1 and a belt conveyor 2 disposed at the bottom of the inner cavity of the machine body 1. Two symmetrical side plates 4 are detachably connected to the top edges of both sides of the machine body 1, and a cover 5 is housed between the two side plates 4. Specifically, the side plates 4 have a C-shaped cross-section, with the opening facing away from the cover 5. The bottom ends of the side plates 4 are set along the top edge of the machine body 1 and connected by bolts. A first drive motor 14 is provided at one end of the bottom of the machine body 1. Several staggered first short toothed rollers 6 and first long toothed rollers 8 are arranged between the two side plates 4 along the feeding direction. Specifically, several first short toothed rollers 6 are arranged in parallel along the feeding direction of the machine body 1, and a first long toothed roller 8 is arranged between adjacent first short toothed rollers 6. The shaft ends at both ends of the machine body 1 are rotatably connected to the side plate 4. Adjacent first short toothed rollers 6 and first long toothed rollers 8 are powered together. The first drive motor 14 is connected to and drives the first short toothed roller 6 at the feeding end of the machine body 1. Specifically, a lower input chain group 15 is connected between the shaft end of the first drive motor 14 and the shaft end of the first short toothed roller 6 at the feeding end. The lower input chain group 15 is a sprocket and chain group. A second drive motor 25 is detachably connected to the top surface of the machine cover 5 near the feeding end of the machine body 1. Several staggered second short toothed rollers 17 and second long toothed rollers 18 are rotatably connected to the bottom of the machine cover 5 along the feeding direction. Specifically, second short toothed rollers 17 corresponding to the first short toothed roller 6 are arranged in parallel along the feeding direction of the machine body 1. A first long toothed roller 18 is arranged between adjacent second short toothed rollers 17. Two long toothed rollers 18 are provided. Through holes are formed on both sides of the bottom of the inner cavity of the machine cover 5 to mate with the shaft ends of the second short toothed roller 17 and the second long toothed roller 18. The second long toothed roller 18 corresponds to the first long toothed roller 8. Adjacent second short toothed rollers 17 and second long toothed rollers 18 are connected by a power link. A second drive motor 25 connects to and drives the second short toothed roller 17 at the feeding end of the machine body 1. A guide groove 20 is provided on the side plate 4 near the feeding end of the machine body 1. Specifically, an upper input chain assembly 26 connects the shaft end of the second drive motor 25 and the shaft end of the second short toothed roller 17 at the feeding end. The shaft ends of the second short toothed roller 17 and the second long toothed roller 18 are connected by an upper transmission chain assembly 27. Adjacent shaft ends of the second short toothed roller 17 and the second long toothed roller 18 are connected by an upper transmission chain. Group 27, the guide groove 20 slides with the shaft end of the second short toothed roller 17 at the feeding end of the machine body 1. Specifically, the guide groove 20 is a vertical, elongated through-hole. The top of the side plate 4 is detachably connected to a second telescopic member 21. The second telescopic member 21 connects to and drives the shaft end of the second short toothed roller 17 at the feeding end of the machine body 1. The end of the machine body 1 opposite to the second telescopic member 21 is hinged to a third telescopic member 22. The third telescopic member 22 connects to and drives the end of the machine cover 5 opposite to the second telescopic member 21. Specifically, both ends of the third telescopic member 22 are hinged to hinge terminals. The hinge terminals at both ends of the second telescopic member 21 are detachably connected to the machine body 1 and the machine cover 5, respectively. The first short toothed roller 6 and the first long toothed roller 8 arranged side by side can be positioned and installed through the side plate 4.The machine cover 5 positions and installs the second short toothed roller 6 and the second long toothed roller 18 arranged in parallel. The first drive motor 14 drives the first short toothed roller 6 and the first long toothed roller 8 to rotate, and the second drive motor 25 drives the second short toothed roller 17 and the second long toothed roller 18 to rotate. The wood is continuously fed by the corresponding engagement of the outer teeth of the first short toothed roller 6 and the second short toothed roller 17. The corresponding engagement of the first long toothed roller 8 and the second long toothed roller 18 peels and crushes the wood during feeding. The crushed wood falls into the belt conveyor 2 through the crushing gap and is continuously output by the belt conveyor 2. The second short toothed roller 17 at the feed end engages with the guide groove 20. Driven by the second telescopic component 21, the second short toothed roller 17 at the feed end moves vertically up and down along the guide groove 20, simultaneously causing the end of the machine cover 5 to move vertically up and down. This adjusts the meshing gap at the feed end and the wood crushing specifications. Furthermore, the third telescopic component 22 drives the feed end of the machine cover 5 to rotate around the second short toothed roller 17, adjusting the wood feed specifications. Thus, by adjusting the angle and height of the machine cover 5, not only can the feeding specifications be adjusted according to the wood specifications, but the downward pressure of wood crushing can also be adjusted throughout the entire process, making it easier to adjust the wood crushing specifications and quality.

[0024] In this embodiment, preferably, the shaft end of the first short toothed roller 6 is provided with a driving gear 12, and the shaft end of the first long toothed roller 8 is provided with a driven gear 13 that meshes with the driving gear 12. The transmission ratio of the driving gear 12 and the driven gear 13 is greater than 1. Specifically, the pitch circle diameter of the driving gear 12 is larger than the pitch circle diameter of the driven gear 13, and the transmission ratio is 2-5. Adjacent first short toothed rollers 6 are powered by a lower transmission chain group 16. Specifically, adjacent first short toothed rollers 6 are driven in the same direction at the same speed by the lower transmission chain group 16. The lower transmission chain group 16 includes a chain and two sprockets of the same specification. Through the cooperation of the driving gear 12 and the driven gear 13, during the feeding process of the first short toothed rollers 6, the first long toothed roller 8 performs reverse rapid stripping and crushing of the wood, thereby improving the crushing efficiency and quality of the wood.

[0025] In this embodiment, preferably, the bottom of the side plate 4 is provided with an arc-shaped fine adjustment groove 9, which is engaged with the shaft end of the first long toothed roller 8. Specifically, the arc center of the fine adjustment groove 9 coincides with the axis of the first short toothed roller 6. The first long toothed roller 8 is adjusted by a small angle around the first short toothed roller 6 through the fine adjustment groove 9. The side wall of the machine body 1 is hinged with a first telescopic member 11, which is connected to and drives the shaft end of the first long toothed roller 8. The first telescopic member 11 can drive the first long toothed roller 8 to make small angle movements around the first short toothed roller 6 along the fine adjustment groove 9, thereby applying pressure to the wood through the first long toothed roller 8 and adjusting the peeling depth and crushing force of the wood.

[0026] In this embodiment, preferably, the first short toothed roller 6, the second short toothed roller 17, the first long toothed roller 8, and the second long toothed roller 18 all include a rotating shaft 31 and an abrasive disk 32 and a toothed disk 34 stacked on the rotating shaft 31. Grinding teeth 33 are distributed in a ring on the outer side of the abrasive disk 32, and stripping teeth 35 are distributed in a ring on the outer side of the toothed disk 34. The length of the stripping teeth 35 on the first short toothed roller 6 and the second short toothed roller 17 is less than the length of the stripping teeth 35 on the first long toothed roller 8 and the second long toothed roller 18. Specifically... The abrasive discs 32 and toothed discs 34 of the first short toothed roller 6 and the second short toothed roller 17 are staggered, and the abrasive discs 32 and toothed discs 34 of the first long toothed roller 8 and the second long toothed roller 18 are staggered. The abrasive discs 32 and toothed discs 34 are stacked on the rotating shaft 31 to form the first short toothed roller 6, the second short toothed roller 17, the first long toothed roller 8 and the second long toothed roller 18. Through the cooperation of the stripping teeth 35 and the grinding teeth 33, the wood is cut, stripped and ground, effectively improving the quality of wood crushing.

[0027] In this embodiment, preferably, the feeding end of the machine body 1 is provided with supports 3 distributed on both sides of the belt conveyor 2. The supports 3 are used to lift the end of the belt conveyor 2 upward, so that the end of the belt conveyor 2 can be constrained by the supports 3, and the crushed wood can be lifted upward, which facilitates the collection of crushed materials.

[0028] In this embodiment, preferably, a protective plate 30 is detachably connected to one end face of the two adjacent side plates 4. The protective plate 30 is used to protect the driving gear 12 and driven gear 13 at the ends of the first short toothed roller 6 and the first long toothed roller 8. Specifically, the cross-section of the protective plate 30 is L-shaped, and a groove for protecting the driving gear 12 and driven gear 13 is formed between the protective plate 30 and the side plate 4. The protective plate 30 can cooperate with the side plate 4 to protect the driving gear 12 and driven gear 13, and prevent wood chips from falling into the meshing area of ​​the driving gear 12 and driven gear 13, thus affecting the power transmission.

[0029] In this embodiment, preferably, both ends of the first short toothed roller 6 are fitted with lower fixed bearings 7 that are detachably connected to the side plate 4. Specifically, the lower fixed bearings 7 are bearing-fitted with the ends of the first short toothed roller 6, and the lower fixed bearings 7 are bolted to the bottom edge of the side plate 4. Both ends of the second short toothed roller 17 and the second long toothed roller 18 are fitted with upper fixed bearings 19 that are detachably connected to the side wall of the machine cover 5. Specifically, the upper fixed bearings 19 are bearing-fitted with the second short toothed roller 17 and the second long toothed roller 18, and the upper fixed bearings 19 are bolted to the side wall of the machine cover 5.

[0030] In this embodiment, preferably, the shaft ends of the first long toothed roller 8 and the second short toothed roller 17 at the feeding end are both equipped with movable shaft seats 10. The top and bottom of the side plate 4 are detachably connected with guide posts 23 that are slidably connected to the movable shaft seats 10. The extended ends of the first telescopic member 11 and the second telescopic member 21 are hinged to the movable shaft seats 10. Specifically, the outer wall of the movable shaft seat 10 is provided with a recessed groove, which is hinged to the extended end of the first telescopic member 11 or the second telescopic member 21. By setting the movable shaft seats 10 at the shaft ends of the first long toothed roller 8 and the second short toothed roller 17 at the feeding end, the movable shaft seats 10 are guided by the guide posts 23. Then, the first telescopic member 11 drives the movable shaft seats 10 to drive the first long toothed roller 8 to move slightly along the fine adjustment groove 9, and the second telescopic member 21 drives the movable shaft seats 10 to drive the second short toothed roller 17 at the feeding end to move vertically up and down along the guide groove 20 to adjust the gap at the feeding end.

[0031] In this embodiment, preferably, stiffening plates 28 are arranged side by side on both sides of the machine body 1 and the machine cover 5. The stiffening plates 28 on both sides of the machine body 1 are connected to support plates 29. The support plates 29 are connected to the bottom end of the guide post 23 corresponding to the first long toothed roller 8. The top end of the guide post 23 corresponding to the second short toothed roller 17 at the feeding end is connected to the top edge of the side plate 4. The other end of the guide post 23 is provided with a locking block 24 that can be detachably connected to the side plate 4. The guide post 23 can be positioned and installed by the support plate 29 or the side plate 4 in conjunction with the locking block 24, which makes it easier to disassemble and assemble.

[0032] The working principle and usage process of this utility model are as follows: In use, the first drive motor 14 drives the first short toothed roller 6 and the first long toothed roller 8 to rotate, and the second drive motor 25 drives the second short toothed roller 17 and the second long toothed roller 18 to rotate. The wood is continuously fed by the corresponding engagement of the outer teeth of the first short toothed roller 6 and the second short toothed roller 17. The corresponding engagement of the first long toothed roller 8 and the second long toothed roller 18 peels and crushes the wood during feeding. The crushed wood falls into the belt conveyor 2 through the crushing gap and is continuously output by the belt conveyor 2.

[0033] According to the specifications of the wood, the second telescopic component 21 drives the second short toothed roller 17 at the end of the feed to rise and fall vertically along the guide groove 20, and drives the end of the machine cover 5 to rise and fall vertically, adjusting the biting gap at the end of the feed and the specifications of the wood crushing. The third telescopic component 22 drives the feed end of the machine cover 5 to rotate around the second short toothed roller 17 at the end of the feed, adjusting the specifications of the wood feed, thereby adjusting the angle and height of the machine cover 5.

[0034] This allows for adjustment of the feeding specifications according to the wood specifications, and also enables adjustment of the downward pressure during wood crushing throughout the entire process, making it easier to adjust the wood crushing specifications and quality.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency wood shredder with a multi-stage shredding blade assembly, comprising a machine body (1) and a belt conveyor (2) disposed at the bottom of the inner cavity of the machine body (1), characterized in that: Two symmetrical side plates (4) are detachably connected to the top edges of both sides of the machine body (1). A cover (5) is housed between the two side plates (4). A first drive motor (14) is provided at one end of the bottom of the machine body (1). Several staggered first short toothed rollers (6) and first long toothed rollers (8) are arranged between the two side plates (4) along the feeding direction. Adjacent first short toothed rollers (6) and first long toothed rollers (8) are powered together. The first drive motor (14) is connected to and drives the first short toothed rollers (6) at the feeding end of the machine body (1). A second drive motor (25) is detachably connected to the top surface of the cover (5) near the feeding end of the machine body (1). Several staggered second short toothed rollers (17) and second long toothed rollers (18) are rotatably connected to the bottom of the cover (5) along the feeding direction. The adjacent second short toothed roller (17) and second long toothed roller (18) are powered together. The second drive motor (25) is connected to and drives the second short toothed roller (17) at the feeding end of the machine body (1). The side plate (4) is provided with a guide groove (20) on the side near the feeding end of the machine body (1). The guide groove (20) is slidably engaged with the shaft end of the second short toothed roller (17) at the feeding end of the machine body (1). The top of the side plate (4) is detachably connected to a second telescopic member (21). The second telescopic member (21) is connected to and drives the shaft end of the second short toothed roller (17) at the feeding end of the machine body (1). The end of the machine body (1) away from the second telescopic member (21) is hinged to a third telescopic member (22). The third telescopic member (22) is connected to and drives the end of the machine cover (5) away from the second telescopic member (21).

2. The high-efficiency wood shredder with multi-stage shredding blades according to claim 1, characterized in that: The first short toothed roller (6) has a driving gear (12) at its shaft end, and the first long toothed roller (8) has a driven gear (13) at its shaft end that meshes with the driving gear (12). The transmission ratio of the driving gear (12) and the driven gear (13) is greater than 1. The adjacent first short toothed rollers (6) are connected by a lower transmission chain group (16).

3. The high-efficiency wood shredder with multi-stage shredding blades according to claim 2, characterized in that: The bottom of the side plate (4) is provided with an arc-shaped fine adjustment groove (9), which is engaged with the shaft end of the first long toothed roller (8). The side wall of the machine body (1) is hinged with a first telescopic member (11), which is connected to and drives the shaft end of the first long toothed roller (8).

4. The high-efficiency wood shredder with multi-stage shredding blades according to claim 3, characterized in that: The first long toothed roller (8) and the second short toothed roller (17) at the feeding end are both fitted with movable shaft seats (10). The top and bottom of the side plate (4) are detachably connected with guide posts (23) that are slidably connected to the movable shaft seats (10). The extended ends of the first telescopic member (11) and the second telescopic member (21) are hinged to the movable shaft seats (10).

5. The high-efficiency wood shredder with multi-stage shredding blades according to claim 1, characterized in that: The feeding end of the machine body (1) is provided with supports (3) distributed on both sides of the belt conveyor (2), and the supports (3) are used to lift the end of the belt conveyor (2) upward.

6. The high-efficiency wood shredder with multi-stage shredding blades according to claim 2, characterized in that: The two side plates (4) are detachably connected to a guard plate (30) on one side end face. The guard plate (30) is used to protect the driving gear (12) and driven gear (13) at the ends of the first short toothed roller (6) and the first long toothed roller (8).

Images