A cutting rod for a crusher with an adjustable blade

Abstract

The application discloses a cutting roller with adjustable blade for a crusher, which comprises a roller shaft and a movable cutter installed on the roller shaft, a plurality of vertical movable cutter installation grooves are arranged in a circumferential annular array on the roller shaft and are formed in an L shape; the side wall of the movable cutter installation groove is inclined outward relative to the central axis of the roller shaft, so that the groove width increases from top to bottom, and the movable cutter is forced to be inclined outward relative to the central axis of the roller shaft as a whole along with the inclination of the side wall; the application belongs to the technical field of plate crushing, and aims to solve the problem that the existing technology is prone to jamming when crushing thick plates, and achieves the technical effect that the inclination of the side wall forces the movable cutter to be inclined outward as a whole, converts the impact load from shear stress to a compression stress conduction path, and significantly reduces the stress concentration at the cutter root; the axial depth gradually changes to drive the movable cutter to gradually decrease in extension amount from top to bottom, forms a spatially distorted cutting plane, and continuously shears the plate in a slanting direction to make the plate be peeled off in a layer-by-layer staggered manner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate crushing, in particular to a cutting rod with adjustable blade for a crusher. BACKGROUND

[0002] The core function of the crushing cutting roller as a core component of plastic plate recycling is to impact and tear the plate through the roller body rotating at high speed. The plate is broken into small pieces by the crushing cutting roller, and then broken into pieces by the subsequent equipment.

[0003] The traditional straight slot cutting roller has the following structural defects:

[0004] When the vertically installed moving knife is impacted, the load converges in the form of shear stress at the knife root, resulting in frequent knife breakage during crushing;

[0005] The equal-height moving knives form a coplanar cutting trajectory, and the plastic plate resists crushing with the whole fracture resistance, resulting in a sharp increase in energy consumption and uneven piece size;

[0006] The blade edge impacts the plate surface vertically, and the unit cutting resistance is too large under the condition of hard plate, which easily causes frequent overload of the motor;

[0007] Therefore, the existing needs are not met, and for this purpose, we propose a cutting rod with adjustable blade for a crusher. SUMMARY

[0008] Therefore, the present application provides a cutting rod with adjustable blade for a crusher to solve the above problems in the prior art.

[0009] In order to achieve the above purpose, the present application provides the following technical scheme:

[0010] According to the first aspect of the present application, a cutting rod with adjustable blade for a crusher comprises a roller and a moving knife installed thereon, the roller is circumferentially annularly arranged with a plurality of vertical moving knife installation grooves, and is arranged as an L shape;

[0011] The side wall of the moving knife installation groove is inclined outwardly relative to the central axis of the roller, so that the groove width increases from top to bottom, forcing the moving knife to be inclined outwardly relative to the central axis of the roller as a whole with the side wall inclined; and the inclination direction satisfies that when the roller rotates, the front side of the moving knife in the rotation direction of the roller is upward and the rear side is downward;

[0012] The installation surface of the moving knife installation groove satisfies:

[0013] Axial depth gradient: the depth increases from top to bottom, so that the extension amount of the moving knife decreases from top to bottom, forcing the moving knife group to form a spatially distorted cutting plane and implement continuous oblique shearing on the plate;

[0014] Circumferential depth gradient: decreasing from the side wall side to the far side, the moving knife blade end extends outwardly relative to the installation end.

[0015] Further, when breaking the plate:

[0016] Constrained by the circumferential depth gradient, the moving knife blade end is outwardly inclined to form a wedge angle, so that the blade cuts into the plate at an acute angle, reducing the initial breaking resistance;

[0017] Constrained by the axial depth gradient, the top moving knife extends long to flexibly crack the surface layer of the plate, and the bottom moving knife extends short to rigidly break the deep structure;

[0018] The synergistic effect of the double gradient inclined surfaces makes the moving knife cutting load uniformly distributed.

[0019] Further, the moving knives in the two adjacent moving knife installation grooves are arranged in high-low staggered manner.

[0020] In the first moving knife installation groove: the moving knife abuts against the top of the moving knife installation groove, and the filling iron block is arranged below.

[0021] Further, in the second moving knife installation groove adjacent to the first moving knife installation groove; the moving knife abuts against the bottom of the moving knife installation groove, and the filling iron block is arranged above.

[0022] Further, when the roller rotates, the high-low staggered moving knives form an axial alternating cutting track, so that the plate bears a gradually changing impact energy from the surface layer to the core layer.

[0023] Further, the adjusting mechanism is arranged between the moving knife and the installation surface, and the adjusting mechanism is used to push the moving knife to move along the slope formed by the circumferential depth gradient of the installation surface, so as to change the radial inclination angle of the blade end of the moving knife.

[0024] Further, when the moving knife moves along the slope, the axial extension amount of the moving knife changes synchronously, and the moving direction and the extension amount change meet; moving to the high slope side→extension amount increases+radial inclination angle increases; moving to the low slope side→extension amount decreases+radial inclination angle decreases.

[0025] Further, the adjusting mechanism comprises: the positioning hole is three-opened as an adjusting groove; and a combined stop block is slidably connected to the inner wall of the adjusting groove.

[0026] Further, the side close to the bolt of the combined stop block is opened as an arc-shaped limiting groove.

[0027] Further, the combined stop block is composed of a splicing stop block one and a splicing stop block two.

[0028] The present application has the following advantages:

[0029] The cutting roller with adjustable blade for the crusher has a three-dimensional special-shaped structure of the L-shaped mounting groove, the side wall is inclined to force the whole dynamic knife to out-dip, the impact load is converted from the shearing stress to the compressive stress transmission path, and the stress concentration at the knife root is significantly reduced; the axial depth gradually changes to drive the dynamic knife to decrease the extension amount from top to bottom, so that when the dynamic knife cuts into the plate, the cutting force applied to the plate is not in a plane, the axial depth gradually changes to drive the dynamic knife to decrease the extension amount from top to bottom, and the dynamic knife group is forced to form a spatially distorted cutting plane to implement continuous oblique shearing on the plate, collapse the overall tear resistance of the plate, and make the plastic plate be peeled off layer by layer, avoiding the collective fracture resistance caused by vertical cutting; the circumferential depth gradually changes to drive the opening blade end to form an acute angle wedge blade, reducing the initial cutting resistance of the hard plate; the double-gradual-change structure cooperatively constructs the space-time load adjusting mechanism to realize uniform distribution of the cutting impact energy. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A front view of the cutting roller with adjustable blade for the crusher is provided for the present application;

[0031] Figure 2 A front view of the cutting roller with adjustable blade for the crusher is provided for the present application; Figure 1 A front view of the cutting roller with adjustable blade for the crusher is provided for the present application;

[0032] Figure 3 A front view of the cutting roller with adjustable blade for the crusher is provided for the present application;

[0033] Figure 4 A front view of the cutting roller with adjustable blade for the present application;

[0034] Figure 5 A front view of the cutting roller with adjustable blade for the present application;

[0035] Figure 6 A front view of the cutting roller with adjustable blade for the present application;

[0036] Figure 7 A front view of the cutting roller with adjustable blade for the present application;

[0037] Figure 8 A front view of the cutting roller with adjustable blade for the present application;

[0038] Figure 9 A front view of the cutting roller with adjustable blade for the present application; Figure 8 A front view of the cutting roller with adjustable blade for the present application;

[0039] Figure 10 A front view of the cutting roller with adjustable blade for the present application;

[0040] Figure 11 A front view of the cutting roller with adjustable blade for the present application;

[0041] Figure 12 A front view of the cutting roller with adjustable blade for the present application.

[0042] In the figure: 1, mandrel; 2, rotating shaft main body; 201, moving knife installation groove; 2011, installation surface; 2012, side wall; 202, positioning hole one; 3, filling iron block; 301, positioning hole two; 5, expansion coupling sealing plate; 6, moving knife; 601, positioning hole three; 610, blade opening surface; 611, arc-shaped groove; 7, expansion coupling sleeve; 801, adjusting groove; 8021, splicing stop block one; 8022, splicing stop block two; 802, combined stop block; 803, limiting groove; 804, splicing clamping groove; 805, splicing clamping block; 806, butt joint clamping groove; 807, threaded hole one; 808, through hole; 809, screw; 810, stop column; 10, roller; 11, nut containing cavity. DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the specification. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0044] Embodiment 1

[0045] Reference Figures 1-12 A cutting rod with adjustable blade for a crusher, comprising a roller 10;

[0046] The roller 10 is circumferentially provided with a moving knife installation groove 201, and the moving knife installation groove 201 is provided with multiple groups and is annularly arranged on the outer side of the roller 10;

[0047] The moving knife 6 is installed in the moving knife installation groove 201; the moving knife 6 is provided with a positioning hole three 601, and the inner wall of the moving knife installation groove 201 is provided with a positioning hole one 202, which corresponds to the positioning hole three 601; the moving knife 6 is fixed in the moving knife installation groove 201 by a bolt passing through the positioning hole one 202 and the positioning hole three 601, and the positioning hole three 601 is provided with a nut containing cavity 11;

[0048] Working principle: when in use, the roller 10 is driven to rotate by a driving motor, thereby driving the moving knife 6 installed on the outer side of the roller 10 to rotate and crushing the plate.

[0049] Embodiment 2

[0050] The above-mentioned technical problems in the above-mentioned scheme are that the above-mentioned roller 10 is integrated, and the damaged parts cannot be replaced, and further, referring to Figure 2The utility model provides a cutting roller with adjustable blade for a crusher, a roller shaft 10 comprises a mandrel 1, the outer wall of the mandrel 1 is sleeved with a rotating shaft body 2, the inner wall of the both ends of the rotating shaft body 2 is fixed with the outer wall of the mandrel 1 with the expansion coupling sleeve 7, and the rotating shaft body 2 is fixed with the mandrel 1 through the expansion coupling sleeve 7;The outer side of the expansion coupling sleeve 7 is covered with the expansion coupling cover plate 5;

[0051] Working principle: the rotating shaft body 2 is detachably installed on the mandrel 1 through the expansion coupling sleeve 7 and the expansion coupling cover plate 5; if the rotating shaft body 2 or the mandrel 1 is damaged subsequently, it can be replaced; improve the use efficiency.

[0052] Example 3:

[0053] The above scheme has the problem that the traditional moving cutter 6 simultaneously impacts the plate at the cutting face 610, the impact force is concentrated, the equipment is large in vibration, the cutter is prone to breakage, and the blade is prone to being stuck in a plane during the breaking and cutting of the plate, which affects the breaking efficiency. Figures 1-6 A cutting roller with adjustable blade for a crusher, the moving cutter installation groove 201 is provided with an L-shaped structure.

[0054] The side wall 2012 of the L-shaped moving cutter installation groove 201 is inclined outward relative to the central axis of the roller shaft 10, so that the groove width increases from top to bottom, forcing the moving cutter 6 to be inclined outward relative to the central axis of the roller shaft 10 as a whole along with the inclination of the side wall 2012; and the inclination direction satisfies: when the roller shaft 10 rotates, the front side of the moving cutter 6 in the rotation direction of the roller shaft 10 is in an upper position, and the rear side is in a lower position; the upper position first contacts the plate to be broken, the contact surface is lowered, and it is easy to cut into the plate, causing cracks; the lower position contacts the plate to be broken later → the bottom moving cutter 6 cuts into the cracked area → the resistance sharply decreases.

[0055] The installation surface 2011 of the moving cutter installation groove 201 satisfies: axial depth gradient: the depth increases from top to bottom, so that the extension amount of the moving cutter 6 decreases from top to bottom, thereby matching the bending moment gradient of the plate breaking; circumferential depth gradient: the depth decreases from the side close to the side wall 2012 to the side away from the side wall 2012, so that the cutting edge of the moving cutter 6 extends outwardly relative to the installation end.

[0056] When breaking the plate: constrained by the circumferential depth gradient, the cutting edge of the moving cutter 6 forms a wedge angle by tilting outward, so that the cutting edge cuts into the plate at an acute angle, reducing the initial breaking resistance; constrained by the axial depth gradient, the top moving cutter 6 flexibly pre-cracks the surface layer of the plate with a long extension amount, and the bottom moving cutter 6 rigidly breaks the deep structure with a short extension amount; the double gradient synergistically acts to uniformly distribute the cutting load, effectively improving the breaking efficiency.

[0057] Example 4:

[0058] The problem in the above scheme is that the cutting edge face 610 of the traditional moving cutter 6 simultaneously hits the plate, the impact force is concentrated, causing large equipment vibration and cutter blade collapse; further, referring to Figures 1-3 A cutting roller with adjustable cutting edge for a crusher, the moving cutters 6 in the adjacent moving cutter installation grooves 201 are arranged in staggered high and low positions; in the first moving cutter installation groove 201: the moving cutter 6 is installed against the top of the moving cutter installation groove 201, and the bottom of the moving cutter 6 is provided with a filler iron block 3; in the adjacent second moving cutter installation groove 201: the moving cutter 6 is installed against the bottom of the moving cutter installation groove 201, and the top of the moving cutter 6 is provided with a filler iron block 3;

[0059] The filler iron block 3 is provided with a positioning hole two 301, which corresponds to the positioning hole one 202 and is fixed by a bolt passing through the positioning hole one 202 and the positioning hole two 301. When the roller shaft 10 rotates, the staggered high and low moving cutter 6 group forms an axial alternating cutting track, the crushing load fluctuation is reduced, and the plate material bears a gradually changing impact energy from the surface layer to the core layer, avoiding overall overload.

[0060] Example 5:

[0061] The problem in the above scheme is that the moving cutter 6 needs to be replaced after a long time of damage to the cutting edge end, and the old one needs to be scrapped, reducing the use efficiency; further, referring to Figure 4 A cutting roller with adjustable cutting edge for a crusher, the cutting edge end of the moving cutter 6 is provided with front and rear double cutting edge faces 610, and an arc-shaped groove 611 is connected between the double cutting edges, guiding the chip flow to the chip removal channel formed by the gradually changing circumferential depth; the moving cutter 6 can be flipped by 180° to realize the replacement and use of the front and rear cutting edge faces 610; at the same time, the arc surface of the arc-shaped groove 611 reduces the contact area between the plate material cut by the cutting edge face 610 and reduces the resistance;

[0062] Example 6: The problem in the above scheme is that the installation position of the moving cutter 6 is fixed, and the position of the moving cutter 6 in the moving cutter installation groove 201 cannot be adjusted horizontally according to the actual situation, so the radial inclination angle of the moving cutter 6 cannot be adjusted, reducing the use efficiency; to solve the above problem, referring to Figures 7-12 Further, the gradually changing circumferential depth of the installation surface 2011 is converted into a continuously adjustable inclined surface, an adjusting mechanism is arranged on the moving cutter 6, the moving cutter 6 is moved along the gradually changing circumferential depth slope of the installation surface 2011, and the radial inclination angle of the cutting edge end of the moving cutter 6 is changed; when the moving cutter 6 moves along the slope, the axial extension amount changes synchronously, and the moving direction and the extension amount change meet; moving to the high slope side → extension amount increases + radial inclination angle increases; moving to the low slope side → extension amount decreases + radial inclination angle decreases;

[0063] Specifically, the positioning hole three 601 is opened as an adjusting groove 801, the bolt used for fixing is in sliding connection with the inner wall of the adjusting groove 801, and the gap between the outer wall of the bolt and the adjusting groove 801 is filled with a combined stop block 802, and the outer wall of the combined stop block 802 is in sliding connection with the inner wall of the adjusting groove 801.

[0064] In use, an initial state is shown in the figure, the combined stop block 802 is located at the left side of the bolt, and when the bolt is in threaded connection with the positioning hole one 202 through the adjusting groove 802, the nut of the bolt is in abutment against the combined stop block 802 to fix the combined stop block 802. Figure 10

[0065] When the moving knife 6 needs to be adjusted, the combined stop block 802 is taken out and placed at the right side of the inner wall of the adjusting groove 802, so that the moving knife 6 can be moved outward to adjust the angle, as shown in the figure. Figure 12

[0066] Further, the combined stop block 802 is combined by a splicing stop block one 8021 and a splicing stop block two 2022, and the two can be separated and placed on the two sides of the bolt to limit the bolt, so that the moving distance of the moving knife 6 is reduced, different situations are adapted, and the use range is expanded, and the splicing stop block one 8021 and the splicing stop block two 2022 are both provided with a limiting groove 803.

[0067] Specifically, the inner wall of the adjusting groove 801 is provided with a threaded hole one 807, the splicing stop block one 8021 and the splicing stop block two 2022 are provided with through holes 808 corresponding to the threaded hole one 807, and the inner wall of the through hole 808 is provided with a screw 809.

[0068] In the initial state, the combined stop block 802 is located at the left side of the adjusting groove 802, and the screw 809 is not inserted into the threaded hole one 807.

[0069] In the intermediate state, the splicing stop block one 8021 and the splicing stop block two 2022 are separated and located on the two sides of the bolt, at this time, the left screw 809 passes through the threaded hole one 807 to drive the abutment column 810 to abut against the side wall 2012, so as to assist in supporting the moving knife 6.

[0070] In the final state, the combined stop block 802 is located at the right side of the adjusting groove 802, and the combined stop block 802 is located at the left side of the adjusting groove 802.

[0071] ​​Further, the limiting groove 803 of the splicing block one 8021 and the splicing block two 2022 is provided with a splicing slot 804 on both sides; the inner wall of the adjusting groove 801 is provided with a butt joint slot 806 on both sides; the side away from the limiting groove 803 of the splicing block one 8021 and the splicing block two 2022 is fixedly connected with a splicing block 805, the outer wall of the splicing block 805 is slidably connected with the inner wall of the splicing slot 804 and the butt joint slot 806; the splicing block one 8021 and the splicing block two 2022 are combined together through the butt joint of the splicing block 805 and the splicing slot 804; the splicing block one 8021 and the splicing block two 2022 are combined with the inner wall of the adjusting groove 801 through the butt joint of the splicing block 805 and the butt joint slot 806.

Claims

1. A cutting roll for a shredder with an adjustable cutting edge, comprising a roll shaft (10) and a moving knife (6) mounted thereon, characterized in that, The circumferential annular array of the roller shaft (10) is provided with a plurality of vertical moving knife installation grooves (201), and is provided as an L shape; The side wall (2012) of the moving knife installation groove (201) is inclined outward relative to the central axis of the roller shaft (10), so that the groove width increases from top to bottom, forcing the moving knife (6) to be inclined outward relative to the central axis of the roller shaft (10) as a whole with the side wall (2012) inclined; and the inclination direction satisfies: when the roller shaft (10) rotates, the front side of the moving knife (6) in the rotation direction of the roller shaft (10) is in an upper position, and the rear side is in a lower position, the upper position first contacts the plate to be broken, the contact surface is lowered, and it is easy to cut into the plate to produce cracks; the lower position contacts the plate to be broken later, and the bottom moving knife (6) cuts into the cracked area, and the resistance is sharply reduced; The installation surface (2011) of the moving knife installation groove (201) satisfies: Axial depth gradient: the depth increases from top to bottom, so that the protruding amount of the moving knife (6) decreases from top to bottom, forcing the moving knife group to form a spatially distorted cutting plane and implement continuous oblique shearing on the plate; Circumferential depth gradient: the depth decreases from the side close to the side wall (2012) to the side away from the side, so that the blade end of the moving knife (6) extends outward relative to the installation end.

2. The cutting bar for a shredder with an adjustable blade according to claim 1, characterized in that, The moving knives (6) in the adjacent two moving knife installation grooves (201) are arranged in high-low staggered manner. In the first moving knife installation groove (201): the moving knife (6) abuts against the top of the moving knife installation groove (201), and the lower part is provided with a filling iron block (3).

3. The cutting bar for a shredder with an adjustable blade according to claim 2, characterized in that, In the second moving knife installation groove (201) adjacent to the first moving knife installation groove (201); the moving knife (6) abuts against the bottom of the moving knife installation groove (201), and the upper part is provided with a filling iron block (3).

4. The cutting bar for a shredder with an adjustable blade according to claim 3, characterized in that, When the roller shaft (10) rotates, the high-low staggered moving knives (6) form an axially alternating cutting track, so that the plate bears a gradually changing impact energy from the surface layer to the core layer.

5. The cutting bar for a shredder with an adjustable blade according to claim 4, characterized in that, An adjusting mechanism is arranged between the moving knife (6) and the installation surface (2011), and the adjusting mechanism pushes the moving knife (6) to move along the slope formed by the circumferential depth gradient of the installation surface (2011), so as to change the radial inclination angle of the blade end of the moving knife (6).

6. The cutting bar for a shredder with an adjustable blade according to claim 5, characterized in that, When the moving knife (6) moves along the slope, the axial protruding amount thereof changes synchronously, and the moving direction and the protruding amount change satisfy: moving to the high-gradient side→protruding amount increasing+radial inclination angle increasing; moving to the low-gradient side→protruding amount decreasing+radial inclination angle decreasing.

7. The cutting bar for a shredder with an adjustable blade according to claim 6, characterized in that, The adjusting mechanism comprises: the positioning hole three (601) is provided as an adjusting groove (801); and the inner wall of the adjusting groove (801) is slidably connected with a combined stop block (802).

8. The cutting bar for a shredder with an adjustable blade according to claim 7, characterized in that, The side close to the bolt of the combined stop block (802) is provided as an arc-shaped limiting groove (803).

9. The cutting bar for a shredder with an adjustable blade according to claim 8, characterized in that, The combined stop block (802) is composed of a spliced stop block one (8021) and a spliced stop block two (8022).

Images