Anti-winding cutting device of variable-diameter knife roll type branch crusher
The anti-entanglement cutting device of the variable diameter cutter roller shredder solves the problems of entanglement and corrosion of the shredder, realizes automatic cleaning and screening, and improves the safety, efficiency and practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-04-07
AI Technical Summary
Existing branch shredders are prone to tangling when cutting branches, resulting in low equipment efficiency and safety hazards. Furthermore, the equipment is susceptible to corrosion and incomplete screening, leading to high subsequent operating costs, and the screening area is prone to blockage.
The anti-winding cutting device adopts a variable diameter cutter roller mechanism. The diameter of the cutter roller is expanded by a motor-driven sleeve and synchronous belt system to automatically clean up the tangled branches. Combined with the drying components and separation anti-clogging mechanism, it can achieve drying and screening.
It effectively prevents entanglement, improves equipment safety and efficiency, extends equipment life, reduces maintenance costs, and enhances screening effect and convenience.
Smart Images
Figure CN121797455A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of anti-entanglement in wood chippers, and specifically relates to an anti-entanglement cutting device for a variable diameter cutter roller type wood chipper. Background Technology
[0002] A branch shredder, also known as a wood chipper, is a key piece of equipment for processing green waste in gardens, orchards, farms, and other places. It uses a high-speed rotating cutter head and sharp blades to shred branches, wood, and other materials into small pieces, facilitating subsequent processing into organic fertilizer, biomass fuel, or culture medium raw materials. It is both environmentally friendly and highly efficient. Its working principle involves an engine or motor driving the cutter roller to rotate at high speed, using blades to cut the branches and achieve the shredding purpose. Some advanced models also employ a dual shredding method combining blade cutting and high-speed airflow impact, which not only efficiently shreds materials but also simultaneously completes micro-particle sorting. With the increasing awareness of modern environmental protection, dead tree branches and branches of trees that grow too densely and block sunlight from the underlying plants are usually pruned off in the natural environment. These pruned branches are then shredded using a branch shredder, which has become an important part of resource reuse. Moreover, with the continuous advancement of technology, the functions and structures of the branch shredder are constantly being upgraded and improved, making it more efficient and convenient to use.
[0003] However, existing wood chippers still have the following drawbacks in use: 1. When using a cutting device to cut and shred tree branches, some of the more resilient branches are easily entangled on the cutter rollers of the shredder. Over time, the number of branches entangled on the rollers increases, severely impacting the shredder's performance. Furthermore, manually removing these entangled branches is extremely difficult, posing a risk of cuts to workers. The process is also time-consuming. This not only reduces the shredding effect of the equipment and threatens its safety, but also significantly reduces its efficiency. 2. In actual use, when breaking newly pruned branches from the top of trees, the branches carry a lot of water droplets and also contain a certain amount of moisture. During the breaking process, this moisture will be squeezed out and adhere to the surface of the equipment. If it is not cleaned in time, the equipment, especially the metal cutting structure, will rust due to excessive moisture, thus shortening the service life of the equipment and its various parts. 3. Most existing branch shredders do not have a screening function after crushing tree branches. The crushed branch fragments are of different sizes and are discharged mixed together. This means that they still need to be sorted and collected again when reused, which increases the labor cost and time. Even if some branch shredders have a screening function, the screening area lacks an active cleaning function after screening. As the usage time increases, the screening area is prone to blockage, resulting in failure to screen normally or poor screening effect in the later stage, which greatly reduces the practicality of the device.
[0004] Therefore, it is necessary to invent an anti-entanglement cutting device for a variable diameter cutter roller type shredder to solve the above problems. Summary of the Invention
[0005] To address the aforementioned problems, this invention provides an anti-entanglement cutting device for a variable diameter cutter roller type wood chipper, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a variable diameter cutter roller type anti-winding cutting device for a wood chipper, comprising a support base and a crushing box, wherein a variable diameter cutter roller mechanism, a drying assembly, and a separation anti-blocking mechanism are respectively installed between the support base and the crushing box, wherein the crushing box is fixedly installed on the top of the support base. The variable diameter cutter roller mechanism includes sleeves rotatably mounted at both ends of the inner wall of the crushing chamber. Multiple support blocks are fixedly arranged at equal intervals on the inner walls of the two sleeves. A support shaft is inserted through the inner wall of each support block. One end of each support shaft passes through the outer wall of the two sleeves and is fixedly connected to a movable blade. Multiple limiting strips are installed on the inner walls of the two sleeves, and one side of each limiting strip is fixedly connected to the other end of one of the multiple support shafts. A spring is fitted on the outer wall of one end of each support shaft, and both ends of each spring are fixedly connected to one side of each limiting strip and one side of each support block. A limiting groove is formed on the other side of each limiting strip. A bidirectional lead screw is inserted through the inner walls of the two sleeves. Support columns are inserted through both ends of the inner walls of the two sleeves. A limiting cone is fixedly provided at one end of each of the four support columns, and the two bidirectional lead screws are... The outer wall is threadedly connected to the inner walls of the four support columns and the four limiting cones respectively. Multiple limiting strips are fixedly provided at equal intervals on the outer walls of the four support columns and the four limiting cones respectively. The outer wall of each limiting strip is slidably connected to the inner wall of each limiting groove respectively. One end of each of the two bidirectional screws is fixedly provided with a first synchronous pulley. A first synchronous belt is meshed between the outer walls of the two first synchronous pulleys. A first motor is installed above one end of the crushing box. A second synchronous pulley is fixedly provided at the output end of the first motor and one end of one of the first synchronous pulleys respectively. A second synchronous belt is meshed between the outer walls of the two second synchronous pulleys. Mounting cylinders are installed on both sides of both ends of the crushing box. The outer walls of one end of each of the four limiting cones are inserted and connected to the inner walls of the four mounting cylinders respectively. Multiple fixed blades are fixedly provided at equal intervals on the lower edges of both sides of the inner wall of the crushing box. Preferably, the outer walls of the two sleeves are provided with multiple through slots at equal intervals, and the outer wall of each movable blade is inserted and connected to the inner wall of each through slot. The outer walls of the two mounting cylinders are rotatably connected with connecting rings, and one end of each connecting ring passes through the inner wall of the crushing box and is fixedly connected to one end of each of the two sleeves. The other end of each of the two connecting rings is fixedly provided with a gear, and the two gears mesh with each other. Both ends of one side of the crushing box are provided with mating slots, and the outer walls of one end of each of the two connecting rings are inserted and connected to the inner walls of the two mating slots. The two ends of the two bidirectional lead screws are rotatably connected to the inner walls of one side of two mounting cylinders and one side of the two gears, respectively.
[0007] Preferably, an installation plate is fixedly provided at the other end of the crushing box, a second motor is installed on one side of the installation plate, and one end of one of the gears passes through the outer wall of one side of the installation plate and is fixed to the output end of the second motor. Universal wheels are installed at the four corners of the bottom of the support base.
[0008] Preferably, the drying assembly includes air boxes installed on both sides of the outer wall of the crushing chamber. Multiple air outlet slots are opened at the upper edge of one side of each of the two air boxes in an inclined state, and multiple air ducts are interspersed at equal intervals at the bottom of each of the two air boxes.
[0009] Preferably, an air guide canister is installed below each of the two air boxes, and the top of each air guide canister is fixedly connected to multiple air ducts, and the inner walls at both ends of each air duct are connected to the inner walls of multiple air outlet slots and the inner walls of the two air guide canisters.
[0010] Preferably, one end of each of the two air guide tubes is connected to a connecting pipe, and a mounting base is installed between one end of the two connecting pipes. The inner walls of one end of the two connecting pipes are respectively connected to the inner wall of the mounting base. A heating pipe is installed at one end of the inner wall of the mounting base, and a fan is installed at the other end of the inner wall of the mounting base.
[0011] Preferably, the separation and anti-blocking mechanism includes a first feeding trough opened on one side of the support base, a second feeding trough opened at the bottom of the support base, a plurality of screen holes are opened at equal intervals at the bottom of the inner wall of the first feeding trough, and the inner wall of each screen hole is connected to the inner wall of the second feeding trough, and the bottom of the inner wall of the first feeding trough is inclined.
[0012] Preferably, limiting grooves are provided on both sides of the inner wall of the second feeding trough, and sliders are slidably connected to the inner walls of the two limiting grooves. A roller brush is rotatably connected between the two sliders, and the outer wall of the roller brush contacts the upper part of the inner wall of the second feeding trough. An electric push rod is installed on one side of the inner wall of the two limiting grooves, and the output end of the two electric push rods is fixedly connected to one side of the two sliders respectively.
[0013] Preferably, a control panel is installed on one side of the support base, and the first motor, the second motor, the heating tube, the fan and the electric push rod are all electrically connected to an external power supply through the control panel.
[0014] The technical effects and advantages of this invention are as follows: 1. This invention involves feeding pruned tree branches into a crushing chamber at the top of the equipment. A second motor is then activated, causing two internal sleeves to rotate relative to each other. This rotation, in turn, causes the movable blades at their upper ends to rotate, rapidly chopping the fed branches. Branches falling along the inner edge of the crushing chamber are also chopped through the interaction of the movable and fixed blades. During prolonged cutting and crushing, many tougher branches may become entangled between the movable blades. When this occurs, a first motor is activated, causing it to engage a first synchronous pulley, a first synchronous belt, a second synchronous pulley, and a second synchronous belt. This causes a bidirectional lead screw located in the two sleeves to rotate, which in turn moves the support columns and limiting cones at both ends relative to each other. Simultaneously, the limiting cones gradually move closer to the center position. This will then compress the limiting strip inside the sleeve, causing it to spread outwards. As it spreads, it will compress the support shaft, which in turn will extend the movable blade outwards from the sleeve, increasing the cutting diameter of the cutter roller and the extension length of the movable blade. This loosens the branches wrapped around it. As the sleeve continues to rotate, the adjacent movable blades will cut and rotate against each other, squeezing off the loosened branches. No manual cleaning is required. Later, the reverse drive of the first motor will return the limiting cone to its original position. Under the elasticity of the spring, the support shaft will quickly reset, which will also quickly reset the movable blade. The operation is simple, reducing the probability of branches getting stuck in the equipment and making it less likely to cause injury due to manual cleaning. This not only improves the shredding effect and safety of the shredder but also increases the working efficiency of the equipment. 2. In this invention, during the operation of the equipment, a lot of moisture will be generated from the crushed plant branches. At this time, the heating pipe and fan inside the mounting base are activated, so that the air from the fan is heated by the heating pipe and generates heat flow. The heat flow is introduced into the air guide can through the connecting pipe and finally blown out evenly from the air outlet to cover the parts inside the crushing box, quickly drying their surfaces and preventing them from being corroded by moisture for a long time. At the same time, the heat flow passes through the separation and anti-blocking mechanism, which also dries the moist branch fragments, reducing the probability of blockage in the separation area and thus improving the service life of the device. 3. In this invention, branches slide down into the first feeding trough and are sieved through the screen holes. Fine debris is sieved into the second feeding trough, while larger branch debris is discharged through the first feeding trough, achieving separation and screening. During this process, the heat generated by the drying component dries the feeding area, reducing the clogging of the screen holes by moist branch debris. At the same time, the electric push rod is activated to push the slider back and forth in the limiting groove, which causes the roller brush to roll back and forth in the screen hole area of the second feeding trough, brushing off the branch debris clogging the screen holes and preventing blockage. No manual cleaning is required, and the continuous screening operation of the equipment is not affected, thereby improving the practicality and ease of use of the device.
[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the front of the invention; Figure 2 This is a schematic diagram of the interior of the crushing chamber of the present invention; Figure 3 This is a schematic diagram of the connection between the movable blade and the limiting strip of the present invention; Figure 4 This is a schematic diagram showing the movable limitation of the support column and the limiting cone of the present invention; Figure 5 This is a schematic diagram of the inside of the sleeve of the present invention; Figure 6 This is a schematic diagram of the fixed blade installation position of the present invention; Figure 7 This is a schematic diagram of the drying component of the present invention; Figure 8 This is a schematic diagram of the bottom separation anti-blocking mechanism of the present invention; Figure 9 This is a schematic diagram of the entire roller brush of the present invention.
[0018] In the diagram: 1. Support base; 2. Crushing box; 3. Variable diameter cutter roller mechanism; 301. Sleeve; 302. Support block; 303. Support shaft; 304. Movable blade; 305. Limiting strip; 306. Spring; 307. Limiting groove; 308. Double-acting screw; 309. Support column; 310. Limiting cone; 311. Limiting clip; 312. First synchronous pulley; 313. First synchronous belt; 314. First motor; 315. Second synchronous pulley; 316. Second synchronous belt; 317. Mounting cylinder; 318. Fixed blade; 4. Through groove; 5. 6. Connecting ring; 7. Gear; 8. Docking groove; 9. Mounting plate; 10. Second motor; 11. Caster wheel; 12. Drying assembly; 13. Air box; 14. Air outlet duct; 15. Air duct; 16. Air guide canister; 17. Connecting pipe; 18. Mounting base; 19. Heating tube; 10. Fan; 1102. Separation and anti-blocking mechanism; 1203. First feeding chute; 1204. Second feeding chute; 1205. Screen hole; 1206. Limiting slide groove; 1207. Sliding block; 18. Roller brush; 19. Electric push rod. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] This invention provides, for example Figure 1 - Figure 9 The variable diameter cutter roller type shredder anti-entanglement cutting device shown includes a support base 1 and a crushing box 2. Its features include: a variable diameter cutter roller mechanism 3, a drying assembly 11, and a separation anti-blocking mechanism 12 respectively installed between the support base 1 and the crushing box 2; wherein the crushing box 2 is fixedly installed on the top of the support base 1. The variable diameter cutter roller mechanism 3 includes sleeves 301 rotatably mounted at both ends of the inner wall of the crushing box 2. Multiple support blocks 302 are fixedly arranged at equal intervals on the inner walls of the two sleeves 301. A support shaft 303 is inserted and connected to the inner wall of each support block 302. One end of each support shaft 303 passes through the outer wall of the two sleeves 301 and is fixedly connected to a movable blade 304. Multiple limiting strips 305 are installed on the inner walls of the two sleeves 301, and one side of each limiting strip 305 is connected to the other end of one of the multiple support shafts 303. The system is fixedly connected, with a spring 306 fitted on the outer wall of one end of each support shaft 303. Both ends of each spring 306 are fixedly connected to one side of each limiting strip 305 and one side of each support block 302, respectively. A limiting groove 307 is provided on the other side of each limiting strip 305. A bidirectional lead screw 308 is inserted through the inner wall of each of the two sleeves 301. Support columns 309 are inserted through both ends of the inner wall of each of the four support columns 309. A limiting cone 310 is fixedly provided at one end of each of the four support columns 309. The two bidirectional lead screws 308... The outer walls at both ends of the 08 are threadedly connected to the inner walls of the four support columns 309 and the four limiting cones 310, respectively. Multiple limiting strips 311 are fixedly provided at equal intervals on the outer walls of the four support columns 309 and the four limiting cones 310, and the outer wall of each limiting strip 311 is slidably connected to the inner wall of each limiting groove 307. A first synchronous pulley 312 is fixedly provided at one end of each of the two bidirectional lead screws 308, and a first synchronous belt 313 meshes between the outer walls of the two first synchronous pulleys 312. (Crushing box) A first motor 314 is installed on the top of one end of the crushing box 2. A second synchronous pulley 315 is fixedly provided on the output end of the first motor 314 and one end of one of the first synchronous pulleys 312. A second synchronous belt 316 meshes and drives between the outer walls of the two second synchronous pulleys 315. Mounting cylinders 317 are installed on both sides of both ends of the crushing box 2. The outer walls of one end of the four limiting cones 310 are respectively inserted and connected to the inner walls of the four mounting cylinders 317. Multiple fixed blades 318 are fixed at equal distances on the lower edge of both sides of the inner wall of the crushing box 2. In operation, the pruned tree branches are fed into the crushing chamber 2 at the top of the equipment. The second motor 9 is then started, causing the two sleeves 301 inside to rotate relative to each other. This, in turn, causes the movable blades 304 at their upper ends to rotate relative to each other, rapidly shredding the fed branches. Branches falling onto the inner edge of the crushing chamber 2 are also shredded through the interaction of the movable blades 304 and the fixed blades 318. During prolonged cutting and crushing, many tougher branches may become entangled between the movable blades 304. When branch jamming occurs, the first motor 314 is started, causing it to move in tandem via the first synchronous pulley 312, the first synchronous belt 313, the second synchronous pulley 315, and the second synchronous belt 316. This causes the bidirectional lead screws 308 located in the two sleeves 301 to rotate, thereby driving the support columns 309 and the limiting cones 310 at both ends to move relative to each other. As they move, the limiting cones 310 gradually move closer to the center position, squeezing the limiting strips 305 inside the sleeves 301, causing them to spread outwards. This outward movement also squeezes the support shaft 303. The movable blade 304 then extends outward from the sleeve 301, increasing the cutting diameter of the cutter roller and thus increasing the extension length of the movable blade 304. This loosens the branches wrapped around its upper end. Continued rotation of the sleeve 301 and the mutual cutting and rotation between adjacent movable blades 304 push the loosened branches off, eliminating the need for manual cleaning. Later, the reverse drive of the first motor 314 returns the limiting cone 310 to its original position. Under the elastic action of the spring 306, the support shaft 303 quickly resets. The movable blade 304 is also quickly reset, simplifying operation and reducing the probability of branches getting stuck in the equipment. This reduces the risk of injury due to manual cleaning, improving not only the shredding effect and safety of the shredder but also its working efficiency. Furthermore, during the movement of the bidirectional lead screw 308, which carries the limiting cone 310 and support column 309, the external limiting strip 311 remains within the limiting groove 307 on one side of the limiting strip 305, preventing the limiting cone 310 and support column 309 from rotating with the bidirectional lead screw 308. See the attached instruction manual for details. Figure 4 Included with instruction manual Figure 6 As shown; Furthermore, multiple through slots 4 are equally spaced on the outer walls of the two sleeves 301, and the outer wall of each movable blade 304 is inserted into and connected to the inner wall of each through slot 4. Connecting rings 5 are rotatably connected to the outer walls of the two mounting cylinders 317, and one end of each connecting ring 5 passes through the inner wall of the crushing box 2 and is fixedly connected to one end of each of the two sleeves 301. Gears 6 are fixedly mounted on the other ends of each connecting ring 5, and the two gears 6 mesh with each other. Harnessing slots 7 are provided at both ends of one side of the crushing box 2, and the outer walls of one end of each connecting ring 5 are inserted into and connected to the inner walls of the two harmony slots 7. The two ends of the two bidirectional lead screws 308 are respectively connected to the inner walls of one side of two mounting cylinders 317 and the two gears 6. When the movable blade 304 is squeezed onto the sleeve 301 and extended, it extends through the external through groove 4, thereby changing the diameter of the cutter roller to facilitate the clearing of stuck branches. When breaking branches, the second motor 9 is started to drive the meshing gear 6 to rotate. The gear 6 is connected to the sleeve 301 in the crushing box 2 through the connecting ring 5, so that the sleeve 301 and the movable blade 304 can rotate and cut each other. During the rotation of the gear 6, one end of the bidirectional lead screw 308 is rotatably connected to it, while the other end of the bidirectional lead screw 308 is fixedly connected to the first synchronous wheel 312. Therefore, when the first motor 314 is not started, the gear 6 rotates, but the bidirectional lead screw 308 will not rotate with it.
[0021] The other end of the crushing box 2 is fixedly provided with a mounting plate 8. A second motor 9 is installed on one side of the mounting plate 8, and one end of one of the gears 6 passes through the outer wall of one side of the mounting plate 8 and is fixed to the output end of the second motor 9. Universal wheels 10 are installed at the four corners of the bottom of the support base 1. The equipment is conveniently moved and the work area for changing the crushed branches is easily replaced by the universal wheels 10, which facilitates mobile work. Furthermore, the drying assembly 11 includes air boxes 1101 installed on both sides of the outer wall of the crushing chamber 2. Multiple air outlet slots 1102 are inclined at the upper edge of one side of each air box 1101. Multiple air ducts 1103 are equidistantly connected to the bottom of each air box 1101, as shown in the attached instruction manual. Figure 6 As shown, the air outlet slot 1102 on one side of the bellows 1101 is inclined, and the air outlet slots 1102 at both ends can just cover the various parts and structures inside the crushing box 2, so that the air outlet covers them.
[0022] Below each of the two air boxes 1101, there is an air guide canister 1104. The top of each air guide canister 1104 is fixedly connected to multiple air ducts 1103. The inner walls of both ends of each air duct 1103 are connected to the inner walls of multiple air outlet slots 1102 and the inner walls of the two air guide canisters 1104. Hot air is distributed to each air duct 1103 through the air guide canister 1104 and finally blown out evenly through the air outlet slot 1102 on one side of the air box 1101.
[0023] Each of the two air guide tubes 1104 has a connecting pipe 1105 inserted at one end. A mounting base 1106 is installed between the ends of the two connecting pipes 1105, and the inner walls of the two connecting pipes 1105 are respectively connected to the inner wall of the mounting base 1106. A heating pipe 1107 is installed at one end of the inner wall of the mounting base 1106, and a fan 1108 is installed at the other end of the inner wall of the mounting base 1106. During equipment operation, a significant amount of moisture will be generated from the broken plant branches. At this time, the heating pipe 1107 inside the mounting base 1106 will be activated. 107 and blower 1108 cause the air from blower 1108 to be heated by heating pipe 1107, which generates heat flow. This heat flow is then introduced into air guide tank 1104 through connecting pipe 1105 and finally blown out evenly from air outlet 1102 to cover the parts inside crushing box 2, quickly drying their surfaces and preventing them from being corroded by prolonged moisture. At the same time, the heat flow passes through separation anti-blocking mechanism 12, which also dries the moist branches and debris, reducing the probability of blockage in the separation area and thus improving the service life of the device. Furthermore, the separation and anti-blocking mechanism 12 includes a first feeding trough 1201 opened on one side of the support base 1, and a second feeding trough 1202 opened at the bottom of the support base 1. The bottom of the inner wall of the first feeding trough 1201 is provided with a plurality of screen holes 1203 at equal intervals, and the inner wall of each screen hole 1203 is connected to the inner wall of the second feeding trough 1202. The bottom of the inner wall of the first feeding trough 1201 is inclined, so that the crushed branches and debris can slide down in it and be screened through the screen holes 1203.
[0024] Both sides of the inner wall of the second feeding trough 1202 are provided with limiting grooves 1204. Sliding sliders 1205 are slidably connected to the inner walls of both limiting grooves 1204. A roller brush 1206 is rotatably connected between the two sliders 1205, and the outer wall of the roller brush 1206 contacts the upper part of the inner wall of the second feeding trough 1202. An electric push rod 1207 is installed on one side of the inner wall of each of the two limiting grooves 1204, and the output ends of the two electric push rods 1207 are fixedly connected to one side of each of the two sliders 1205. The branches slide down into the first feeding trough 1201 and are screened through the sieve holes 1203, with fine debris falling into the second feeding trough 1202. Meanwhile, the smaller... Larger twigs and debris are discharged through the first feeding trough 1201, achieving separation and screening. During this process, the heat generated by the drying component 11 dries the feeding area, reducing the clogging of the screen holes 1203 by moist twigs and debris. At the same time, the electric push rod 1207 is activated to push the slider 1205 back and forth in the limiting groove 1204, which in turn causes the roller brush 1206 to roll back and forth in the area of the screen holes 1203 in the second feeding trough 1202, brushing off the twigs and debris clogging the screen holes 1203, preventing clogging. This eliminates the need for manual cleaning by personnel and does not affect the continuous screening of the equipment, thereby improving the practicality and ease of use of the device.
[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A variable diameter cutter roller type anti-entanglement cutting device for a wood chipper, comprising a support base (1) and a crushing box (2), characterized in that: A variable diameter cutter roller mechanism (3), a drying assembly (11), and a separation anti-blocking mechanism (12) are respectively installed between the support base (1) and the crushing box (2). The crushing box (2) is fixedly installed on the top of the support base (1). The variable diameter cutter roller mechanism (3) includes sleeves (301) rotatably mounted on both ends of the inner wall of the crushing box (2). Multiple support blocks (302) are fixedly arranged at equal intervals on the inner walls of the two sleeves (301). A support shaft (303) is inserted through the inner wall of each support block (302). One end of each support shaft (303) passes through the outer wall of the two sleeves (301) and is fixedly connected to a movable blade (304). Multiple limiting strips (305) are installed on the inner walls of the two sleeves (301), and one side of each limiting strip (305) is connected to one of the multiple support shafts (303). The other end is fixedly connected, and a spring (306) is sleeved on the outer wall of one end of each of the support shafts (303). The two ends of each spring (306) are fixedly connected to one side of each limiting strip (305) and one side of the support block (302). A limiting groove (307) is opened on the other side of each of the limiting strips (305). A two-way screw (308) is inserted through the inner wall of each of the two sleeves (301). A support column (309) is inserted through both ends of the inner wall of each of the two sleeves (301). A limiting cone (310) is fixedly provided at one end of each of the four support columns (309). The outer walls of both ends of the lead screw (308) are threadedly connected to the inner walls of four support columns (309) and four limiting cones (310), respectively. Multiple limiting strips (311) are fixedly provided at equal intervals on the outer walls of the four support columns (309) and the four limiting cones (310), and the outer wall of each limiting strip (311) is slidably connected to the inner wall of each limiting groove (307). A first synchronous pulley (312) is fixedly provided at one end of each of the two bidirectional lead screws (308), and a first synchronous belt (313) meshes between the outer walls of the two first synchronous pulleys (312). The crusher... A first motor (314) is installed on the top of one end of the box (2). The output end of the first motor (314) and one end of one of the first synchronous pulleys (312) are fixedly provided with a second synchronous pulley (315). A second synchronous belt (316) meshes between the outer walls of the two second synchronous pulleys (315). Mounting cylinders (317) are installed on both sides of both ends of the crushing box (2). The outer walls of one end of the four limiting cones (310) are respectively inserted and connected to the inner walls of the four mounting cylinders (317). Multiple fixed blades (318) are fixed at equal distances on the lower edge of both sides of the inner wall of the crushing box (2).
2. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 1, characterized in that: The outer walls of the two sleeves (301) are provided with multiple through slots (4) at equal intervals, and the outer wall of each movable blade (304) is inserted and connected to the inner wall of each through slot (4). The outer walls of the two mounting cylinders (317) are rotatably connected with connecting rings (5), and one end of the two connecting rings (5) passes through the inner wall of the crushing box (2) and is fixedly connected to one end of the two sleeves (301). The other end of the two connecting rings (5) is fixedly provided with gears (6), and the two gears (6) mesh with each other. Both ends of one side of the crushing box (2) are provided with docking slots (7), and the outer walls of one end of the two connecting rings (5) are inserted and connected to the inner walls of the two docking slots (7). The two ends of the two bidirectional screws (308) are rotatably connected to the inner walls of one side of the two mounting cylinders (317) and one side of the two gears (6).
3. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 1, characterized in that: The other end of the crushing box (2) is fixedly provided with an installation plate (8). A second motor (9) is installed on one side of the installation plate (8), and one end of one of the gears (6) passes through the outer wall of one side of the installation plate (8) and is fixed to the output end of the second motor (9). Universal wheels (10) are installed at the four corners of the bottom of the support base (1).
4. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 1, characterized in that: The drying assembly (11) includes air boxes (1101) installed on both sides of the outer wall of the crushing box (2). Multiple air outlet slots (1102) are opened at the upper edge of one side of the two air boxes (1101) in an inclined state. Multiple air ducts (1103) are interspersed at equal distances at the bottom of the two air boxes (1101).
5. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 4, characterized in that: Each of the two air boxes (1101) is equipped with an air guide canister (1104) below it, and the top of each air guide canister (1104) is fixedly connected to a plurality of air ducts (1103), and the inner walls of both ends of each air duct (1103) are connected to the inner walls of a plurality of air outlet slots (1102) and the inner walls of the two air guide canisters (1104).
6. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 5, characterized in that: One end of each of the two air guide tubes (1104) is connected to a connecting pipe (1105), and a mounting base (1106) is installed between one end of the two connecting pipes (1105). The inner walls of one end of the two connecting pipes (1105) are respectively connected to the inner wall of the mounting base (1106). A heating pipe (1107) is installed at one end of the inner wall of the mounting base (1106), and a fan (1108) is installed at the other end of the inner wall of the mounting base (1106).
7. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 1, characterized in that: The separation and anti-blocking mechanism (12) includes a first feeding trough (1201) opened on one side of the support base (1), and a second feeding trough (1202) opened at the bottom of the support base (1). Multiple screen holes (1203) are opened at equal intervals on the bottom of the inner wall of the first feeding trough (1201), and the inner wall of each screen hole (1203) is connected to the inner wall of the second feeding trough (1202). The bottom of the inner wall of the first feeding trough (1201) is inclined.
8. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 7, characterized in that: The inner walls of the second feeding groove (1202) are provided with limiting grooves (1204) on both sides. The inner walls of the two limiting grooves (1204) are slidably connected with sliders (1205). A roller brush (1206) is rotatably connected between the two sliders (1205). The outer wall of the roller brush (1206) is in contact with the upper part of the inner wall of the second feeding groove (1202). An electric push rod (1207) is installed on one side of the inner wall of the two limiting grooves (1204). The output ends of the two electric push rods (1207) are fixedly connected to one side of the two sliders (1205).
9. The anti-entanglement cutting device for a variable diameter cutter roller type wood chipper according to claim 1, characterized in that: A control panel is installed on one side of the support base (1). The first motor (314), the second motor (9), the heating tube (1107), the fan (1108), and the electric push rod (1207) are all electrically connected to an external power source through the control panel.