A knife roll with adjustable load

Abstract

The present invention provides a cutter roller with adjustable load, which relates to the field of cutter rollers. The cutter roller with adjustable load includes a roller shaft and a plurality of moving cutters. A plurality of moving cutter seats are arranged at intervals on the roller shaft. The moving cutter seats protrude from the outer side surface of the roller shaft, and the moving cutter seats have an assembly part for installing the moving cutters. The side of the moving cutter facing away from the assembly part forms a cutting surface. A load adjusting structure is detachably installed on the roller shaft. The load adjusting structure is embedded at the included angle position between the outer side surface of the roller shaft and the cutting surface of the moving cutter, and the load adjusting structure has a material guiding inclined surface that intersects the cutting surface obliquely. By designing the material guiding inclined surface on the cutting surface, an outward pushing effect is formed on the part of the material close to the roller shaft, and the material is concentrated at the end position of the moving cutter as much as possible for processing. The circumferential linear velocity of the end of the moving cutter is greater, and the power of cutting and crushing and the cutting force are stronger. According to the actual situation of the material, the load adjusting structure can be removed or installed to adjust the cutting part of the moving cutter, and the versatility of the entire cutter roller is better.

Description

Technical Field

[0001] The invention relates to the technical field of knife rollers, in particular to a knife roller with adjustable load. Background Art

[0002] The knife roller is the core component of the crushing and shredding equipment, which uses the rotating motion of the knife roller to cut and crush the materials.

[0003] Usually, the moving knife of the knife roller is fixed on the moving knife seat, and the side of the moving knife away from the moving knife seat is the cutting surface. For example, the Chinese utility model patent with the authorization announcement number CN206296031U and the authorization announcement date of 2017.07.04 discloses a knife roller for a crusher, and specifically discloses that the knife roller includes a knife shaft, a moving knife and a plurality of moving knife seats, the plurality of moving knife seats are arranged in sequence along the axial direction of the knife shaft, each moving knife seat is mounted on the outer surface of the knife shaft and is fixedly connected to the knife shaft; each moving knife seat is provided with a plurality of moving knives, and the plurality of moving knives are arranged in a circular array around the axis of the knife shaft; one of the moving knives on each moving knife seat is connected in a C-shape along the axial direction of the knife shaft. When the knife shaft rotates, only one moving knife on the moving knife seat cuts with the fixed knife on the shredder, so that during the continuous rotation of the knife shaft, each moving knife cuts with the fixed knife in turn, which can realize continuous shearing of the knife roller in the circumferential direction, and the cutting force is greater.

[0004] The existing knife roller adopts the design of staggered moving knives to improve the cutting force. Since the crusher usually processes a variety of materials, especially for the bag opener, there are both ton bags with high tensile strength and hardness, and thin films with low tensile strength and high ductility. However, the cutting force between the moving knife and the fixed knife of the existing knife roller is constant, which is difficult to adapt to the cutting and crushing requirements of different materials and has the problem of poor versatility. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a knife roller with adjustable load to solve the problem that the cutting force between the movable knife and the fixed knife of the existing knife roller is constant, which is difficult to adapt to the cutting and crushing requirements of different materials and has poor versatility.

[0006] The technical solution of the load-adjustable cutter roller of the present invention is:

[0007] The load-adjustable knife roller comprises a roller shaft and a plurality of movable knives, wherein a plurality of movable knife seats are arranged at intervals on the roller shaft, wherein the movable knife seats protrude from the outer side surface of the roller shaft, and the movable knife seats have an assembly portion for mounting the movable knives, and a side of the movable knife facing away from the assembly portion constitutes a cutting surface;

[0008] A load adjustment structure is detachably mounted on the roller shaft, the load adjustment structure is embedded in the angle position between the outer side surface of the roller shaft and the cutting surface of the movable knife, and the load adjustment structure has a material guiding inclined surface obliquely intersecting the cutting surface.

[0009] Beneficial effects: A load adjustment structure is installed at the angle position between the outer side surface of the roller shaft and the cutting surface of the moving knife, and the material guiding inclined surface of the load adjustment structure partially shields the cutting surface; when the cutter roller rotates, the cutting surface of the moving knife exerts a shearing effect on the material. Since a material guiding inclined surface is designed on the cutting surface, part of the material at the root position of the moving knife moves along the material guiding inclined surface and is gradually pushed to the end position of the moving knife, and cutting and crushing occur at the end position of the cutting surface of the moving knife.

[0010] Due to the material guiding effect of the load adjustment structure, an outward pushing effect is formed on the part of the material close to the roller shaft, avoiding the cutting and crushing of this part of the material at the root of the moving knife, but concentrating the material at the end position of the moving knife as much as possible for processing. The rotational linear velocity at the end of the moving knife is greater, and the power and cutting force for cutting and crushing are stronger. At the same time, the material biting amount of the cutter roller is reduced, the load amount of the cutter roller per unit time is decreased, and the material crushing and processing effect is effectively improved. In addition, the load adjustment structure and the roller shaft are detachably installed, and the load adjustment structure can be removed or installed according to the actual situation of the material to adjust the cutting part of the moving knife, so as to adapt to the crushing requirements of different materials, and the versatility of the entire cutter roller is better.

[0011] Furthermore, a positioning block is provided on the outer side surface of the roller shaft close to the moving knife seat, the load adjustment structure is an adjustment block detachably installed on the positioning block, and the side surface of the positioning block facing away from the roller shaft is flush with the material guiding inclined surface of the adjustment block.

[0012] Furthermore, the outer side surface of the roller shaft is a cylindrical surface, the shape of the positioning block is a wedge shape, and the positioning block has an arc-shaped fitting portion that matches the cylindrical surface of the roller shaft.

[0013] Furthermore, the arc-shaped fitting portion is welded and fixed on the cylindrical surface of the roller shaft, and the positioning block is further provided with a positioning surface facing away from the arc-shaped fitting portion; the positioning surface forms a positioning angle with the cutting surface of the moving knife, the adjustment block is installed in the positioning angle, and a connecting bolt is provided between the adjustment block and the positioning block.

[0014] Furthermore, the width of the adjustment block is smaller than the width of the moving knife, and the adjustment block is arranged at the middle position of the moving knife.

[0015] Furthermore, the moving knife seat is a cuboid block structure, the moving knife seat is provided with two assembly parts, and the two assembly parts are respectively a first assembly side surface and a second assembly side surface arranged perpendicular to the circumferential direction of the roller shaft, and the moving knives are installed on both the first assembly side surface and the second assembly side surface.

[0016] Further, a fastening bolt is connected between the moving cutter and the moving cutter seat, and the fastening bolt extends perpendicular to the first assembly side surface or the second assembly side surface.

[0017] Further, a bolt hole for the fastening bolt to pass through is formed in the moving cutter, and a counterbore for accommodating the nut of the fastening bolt is further provided on the moving cutter.

[0018] Further, the moving cutter seats are arranged at intervals in a spiral line on the cylindrical surface of the roller shaft, and the axial interval between adjacent moving cutter seats forms a cutting space for matching with a fixed cutter. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of the adjustable-load cutter roller in Specific Embodiment 1 of the adjustable-load cutter roller of the present invention;

[0020] Figure 2 is Figure 1 the front view schematic diagram of the adjustable-load cutter roller in;

[0021] Figure 3 is Figure 1 the right view schematic diagram of the adjustable-load cutter roller in;

[0022] Figure 4 is Figure 2 the cross-sectional schematic diagram of the adjustable-load cutter roller at A-A in.

[0023] In the figure: 1, roller shaft; 11, root cutting zone; 2, moving cutter seat; 3, moving cutter; 30, cutting surface; 31, bolt hole; 32, counterbore; 33, fastening bolt; 4, adjusting block; 40, material guiding inclined surface; 41, connecting bolt; 5, positioning block, 50, positioning surface. Detailed Description of the Embodiment

[0024] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0025] Specific Embodiment 1 of the adjustable-load cutter roller of the present invention, as Figures 1 to 4 shown, the adjustable-load cutter roller includes a roller shaft 1 and a plurality of moving cutters 3. A plurality of moving cutter seats 2 are arranged at intervals on the roller shaft 1. The moving cutter seats 2 protrude from the outer side surface of the roller shaft 1, and the moving cutter seats 2 have an assembly part for installing the moving cutters 3. The side of the moving cutter 3 facing away from the assembly part forms a cutting surface 30; a load adjusting structure is detachably installed on the roller shaft 1, and the load adjusting structure is embedded at the included angle position between the outer side surface of the roller shaft 1 and the cutting surface 30 of the moving cutter 3, and the load adjusting structure has a material guiding inclined surface 40 that intersects the cutting surface 30 obliquely.

[0026] A load adjustment structure is embedded at the angular position between the outer side surface of the roller shaft 1 and the cutting surface 30 of the moving knife 3, and the material guiding inclined surface 40 of the load adjustment structure partially shields the cutting surface 30; when the cutter roller rotates, the cutting surface 30 of the moving knife 3 exerts a shearing effect on the material. Since the material guiding inclined surface 40 is designed on the cutting surface 30, part of the material located at the root position of the moving knife 3 moves along the material guiding inclined surface 40 and is gradually pushed to the end position of the moving knife 3, where cutting and crushing occur at the end position of the cutting surface 30 of the moving knife 3.

[0027] Due to the material guiding effect of the load adjustment structure, an outward pushing effect is exerted on part of the material close to the roller shaft 1, preventing this part of the material from being cut and crushed at the root of the moving knife 3. Instead, the material is concentrated as much as possible at the end position of the moving knife 3 for processing. The circumferential linear velocity at the end of the moving knife 3 is greater, and the power and cutting force for cutting and crushing are stronger. At the same time, the material biting amount of the cutter roller is reduced, the load amount of the cutter roller per unit time is decreased, and the material crushing treatment effect is effectively improved. In addition, the load adjustment structure and the roller shaft 1 are detachably installed. According to the actual situation of the material, the load adjustment structure can be removed or installed to adjust the cutting part of the moving knife 3, so as to adapt to the crushing requirements of different materials, and the versatility of the entire cutter roller is better.

[0028] Among them, a positioning block 5 is further provided on the outer side surface of the roller shaft 1 close to the moving knife seat 2. The load adjustment structure is an adjustment block 4 detachably installed on the positioning block 5. The side surface of the positioning block 5 facing away from the roller shaft 1 is flush with the material guiding inclined surface 40 of the adjustment block 4. Designing the material guiding inclined surface 40 of the adjustment block 4 to be flush with the side surface of the positioning block 5 extends the extension distance of the material guiding inclined surface 40, enabling a smooth transition between the material guiding inclined surface 40 and the outer side surface of the roller shaft 1, which is beneficial for part of the material close to the roller shaft 1 to be more smoothly displaced to the end position of the moving knife 3.

[0029] In this embodiment, the outer side surface of the roller shaft 1 is a cylindrical surface, and the shape of the positioning block 5 is a wedge shape. The positioning block 5 has an arc-shaped fitting portion matching the cylindrical surface of the roller shaft 1. The arc-shaped fitting portion of the positioning block 5 is welded and fixed on the cylindrical surface of the roller shaft 1. The positioning block 5 further has a positioning surface 50 facing away from the arc-shaped fitting portion. The positioning surface 50 forms a positioning angle with the cutting surface 30 of the moving knife 3. The adjustment block 4 is embedded in the positioning angle, and a connecting bolt 41 is provided between the adjustment block 4 and the positioning block 5. The arc-shaped fitting portion of the positioning block 5 is welded and fixed on the roller shaft 1, and the adjustment block 4 is fixed on the positioning block 5 through the connecting bolt 41, avoiding direct modification by drilling holes on the roller shaft 1 and ensuring the structural integrity of the roller shaft 1; the adjustment block 4 is embedded in the positioning angle, improving the reliability of the installation of the adjustment block 4. The disassembly and installation operation of the adjustment block 4 can be achieved only by screwing the connecting bolt 41, simplifying the disassembly and installation steps of the adjustment block 4.

[0030] The width of the adjusting block 4 is smaller than that of the moving blade 3, and the adjusting block 4 is arranged at the middle position of the moving blade 3. That is to say, both sides of the width of the adjusting block 4 are located inside the cutting edges of the moving blade 3, preventing the adjusting block 4 from cooperating with the fixed blade to play a cutting role, preventing the adjusting block 4 from forming an additional cutting component, ensuring that only part of the material near the roller shaft 1 can be pushed along the feeding inclined plane 40, and ensuring the adjusting effect of the adjusting block 4 on the cutting part of the moving blade 3.

[0031] Moreover, in order to improve the functionality of the entire cutter roller, the moving blade seat 2 is of a cuboid block structure. The moving blade seat 2 is provided with two assembly parts, namely a first assembly side surface and a second assembly side surface which are arranged perpendicular to the circumferential direction of the roller shaft 1. The moving blades 3 are installed on both the first assembly side surface and the second assembly side surface of the moving blade seat 2. When the cutter roller rotates forward and backward, opposite cutting forces are respectively formed. Different adjusting blocks 4 can be respectively installed between the moving blade 3 on the first assembly side surface and the cylindrical surface of the roller shaft 1, and between the moving blade 3 on the second assembly side surface and the cylindrical surface of the roller shaft 1, so that different cutting effects are achieved when the cutter roller rotates forward and backward, and the crushing functionality is better, which can meet the use requirements of mixed materials.

[0032] A fastening bolt 33 is connected between the moving blade 3 and the moving blade seat 2. The fastening bolt 33 extends perpendicular to the first assembly side surface or the second assembly side surface. Moreover, a bolt hole 31 for the fastening bolt 33 to pass through is opened on the moving blade 3, and a counterbore 32 for accommodating the nut of the fastening bolt 33 is also provided on the moving blade 3. Designing the counterbore 32 on the moving blade 3 ensures the flatness of the cutting surface 30 of the moving blade 3, which is beneficial to reliably installing the adjusting block 4 in the positioning angle between the positioning surface 50 and the cutting surface 30.

[0033] The moving blade seats 2 are arranged at intervals in a spiral line on the cylindrical surface of the roller shaft 1. The axial interval between adjacent moving blade seats 2 forms a cutting space for matching with the fixed blade. The multiple moving blades 3 are arranged in a spiral line on the cylindrical surface of the roller shaft 1, changing the time when different moving blades 3 generate cutting actions, making the cutting action times of the multiple moving blades 3 stagger forward and backward, and improving the cutting and crushing effect of the moving blades 3. In addition, a root cutting belt 11 is also attached to the roller shaft 1. The root cutting belt 11 protrudes from the cylindrical surface of the roller shaft 1, and the edge of the root cutting belt 11 forms a root cutting edge.

[0034] In other specific embodiments of the adjustable-load cutter roller of the present invention, in order to simplify the structure of the cutter roller, the positioning block can be omitted and only the adjusting block is retained. Threaded holes are directly opened on the roller shaft, and the adjusting block is designed with an arc-shaped fitting part matching the cylindrical surface of the roller shaft. The adjusting block is fixed at the angle position between the cylindrical surface of the roller shaft and the cutting surface of the moving blade through a connecting bolt, and the adjusting block can also be used to adjust the load.

[0035] For other specific embodiments of the adjustable-load cutter roller of the present invention, in order to meet different usage requirements, the multiple movable cutter seats are not limited to being arranged at intervals in a spiral on the cylindrical surface of the roller shaft. Instead, the multiple movable cutter seats can also be arranged in a C-shape, an S-shape, or a straight line on the cylindrical surface of the roller shaft. Additionally, in order to simplify the structure of the cutter roller, an assembly side surface can be designed on the movable cutter seat, and the movable cutter is only installed on one side of the movable cutter seat, which also meets the usage requirements for crushing materials.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A knife roll with adjustable load, characterized in that, It includes a roller shaft and multiple moving blades. A plurality of moving blade seats are arranged at intervals on the roller shaft. The moving blade seats protrude from the outer side surface of the roller shaft, and the moving blade seats have an assembly part for installing the moving blades. The side of the moving blade facing away from the assembly part constitutes a cutting surface; A load adjustment structure is detachably installed on the roller shaft. The load adjustment structure is embedded at the included angle position between the outer side surface of the roller shaft and the cutting surface of the moving blade, and the load adjustment structure has a material guiding inclined surface that intersects the cutting surface obliquely; A positioning block close to the moving blade seat is further provided on the outer side surface of the roller shaft. The load adjustment structure is an adjustment block that is detachably installed on the positioning block. The side surface of the positioning block facing away from the roller shaft is flush with the material guiding inclined surface of the adjustment block; The extension distance of the material guiding inclined surface is extended through the side surface of the positioning block, so that the material guiding inclined surface and the outer side surface of the roller shaft are smoothly transitioned, so as to smoothly discharge the part of the material close to the roller shaft to the end position of the moving blade; The outer side surface of the roller shaft is a cylindrical surface. The shape of the positioning block is a wedge shape, and the positioning block has an arc-shaped fitting part that matches the cylindrical surface of the roller shaft; The arc-shaped fitting part is welded and fixed on the cylindrical surface of the roller shaft. The positioning block is further provided with a positioning surface facing away from the arc-shaped fitting part. The positioning surface forms a positioning included angle with the cutting surface of the moving blade. The adjustment block is embedded in the positioning included angle, and a connecting bolt is provided between the adjustment block and the positioning block; The width of the adjustment block is smaller than the width of the moving blade, and the adjustment block is arranged at the middle position of the moving blade; The moving blade seat is a cuboid block structure. The moving blade seat is provided with two assembly parts. The two assembly parts are respectively a first assembly side surface and a second assembly side surface arranged perpendicular to the circumferential direction of the roller shaft. The moving blades are installed on both the first assembly side surface and the second assembly side surface; A fastening bolt is connected between the moving blade and the moving blade seat. The fastening bolt extends perpendicular to the first assembly side surface or the second assembly side surface.

2. The knife roll with adjustable load according to claim 1, characterized in that, The moving blade is provided with a bolt hole for the fastening bolt to pass through, and the moving blade is further provided with a counterbore for accommodating the nut of the fastening bolt.

3. The knife roll with adjustable load according to claim 1, characterized in that, The moving blade seats are arranged at intervals in a spiral line on the cylindrical surface of the roller shaft. The axial interval between adjacent moving blade seats constitutes a cutting space for matching with a fixed blade.

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