Double-drum type anti-locking crushing grille

Abstract

The invention belongs to the technical field of crushing grilles, and particularly relates to a double-drum type anti-locking crushing type grille. Comprising a shell, a motor is installed on the shell, a reverse rotation unit is arranged in the motor, the shell is rotationally connected with symmetrically-distributed rotary drums, the symmetrically-distributed rotary drums are in transmission through a gear set, an output shaft of the motor is fixedly connected with the adjacent rotary drums, the rotary drums are fixedly connected with blades distributed in a linear array mode, and the blades are arranged on the rotary drums. The shell is rotationally connected with grid frames which are symmetrically distributed, the shell is rotationally connected with rotating discs which are symmetrically distributed in a sealed mode, and the rotating discs are rotationally connected with shifting plates in a sealed mode. The two stirring plates drive large impurities between the blades on the left side and the right side to move, so that the large impurities are always located in the centers of the upper side and the lower side of the rotary drum when the large impurities are crushed in a reciprocating motion mode, and the situation that the upper end or the lower end of the rotary drum inclines due to too large stress, and even the rotary drum inclines and is broken due to stress is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing grids, and in particular to a double-drum anti-jamming crushing grid. Background Art

[0002] The double-drum crushing screen is a device for crushing impurities in sewage. Its characteristic is that two relatively rotating drums drive two sets of crushing blades to crush impurities in the water. In addition, the existing double-drum crushing screen is generally designed with an anti-stuck mechanism. When large impurities are stuck between the blades of the two drums, the anti-stuck mechanism is triggered to make the two drums rotate back and forth, continuously withdrawing large impurities from between the drums and then clamping them again for crushing. This reciprocating operation prevents the double-drum crushing screen from getting stuck.

[0003] When the existing double-drum crushing screen reciprocates to crush large impurities, if the large impurities are located on the upper or lower side between the two drums, the gap between the upper or lower sides of the two drums will be squeezed, causing the drum to be deflected or even tilted and broken, thereby affecting the crushing efficiency of impurities in sewage. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a double-drum anti-jamming pulverizing grille.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a double-drum anti-stuck crushing type grille, comprising a shell, a motor is installed on the shell, a reverse rotation unit is arranged in the motor, the shell is rotatably connected with symmetrically distributed drums, the symmetrically distributed drums are transmitted through a gear set, the output shaft of the motor is fixedly connected to the adjacent drums, the drums are fixedly connected with blades distributed in a linear array, and the adjacent blades on different drums are staggered, the shell is rotatably connected with a symmetrically distributed grid frame, the symmetrically distributed drums are all located between the symmetrically distributed grid frames, the drums and the adjacent grid frames are fixedly connected with a first pulley, the first pulley of the grid frame and the first pulley of the adjacent drum are driven by a first transmission belt, the shell is sealed and rotatably connected with symmetrically distributed rotating disks, the drums and the adjacent rotating disks are transmitted through a transmission member, the rotating disk is sealed and rotatably connected with a toggle plate, and a torsion spring is fixedly connected between the toggle plate and the adjacent rotating disk.

[0006] It is further explained that there are two toggle plates, which are centrally symmetrically distributed, and the positions of the two toggle plates close to the drum are inclined toward opposite sides, so as to guide small particle impurities to the grid frame.

[0007] Further description, the toggle plate is provided with flow holes distributed in a linear array, the toggle plate is slidably connected to a blocking plate distributed in a linear array, an elastic member is fixed between the blocking plate and the adjacent toggle plate, and the blocking plate cooperates with the adjacent flow holes for blocking.

[0008] It is further explained that the width of the flow hole is smaller than the spacing between bars of adjacent grid frames, and is used to screen impurities.

[0009] It is further explained that the toggle plate is fixedly connected to a protrusion at a position adjacent to the rotating disk, a hydraulic push rod 1 is fixedly connected to a position in the rotating disk close to the adjacent protrusion, an elastic member is fixedly connected between the telescopic end of the hydraulic push rod 1 and its fixed portion, the telescopic end of the hydraulic push rod 1 is squeezed and fit with the adjacent protrusion, a symmetrically distributed hydraulic push rod 2 is fixedly connected to the upper part of the shell, the hydraulic push rod 1 is connected to the adjacent hydraulic push rod 2 through a conduit, a trigger rod is fixedly connected to the telescopic end of the hydraulic push rod 2, and symmetrically distributed pressure switches are fixedly connected to the shell and are squeezed and fit with the adjacent trigger rods respectively.

[0010] Further description, it also includes a plurality of groups of circumferentially evenly distributed extrusion rods, which are respectively fixed to corresponding bars on adjacent grid frames, and a gap is set between the blade and the adjacent extrusion rods.

[0011] It is further explained that a rotating shaft is rotatably connected in the grid frame, a rotating blade is fixedly connected to the upper portion of the rotating shaft, and cutting tools distributed in a linear array are fixedly connected to the lower portion of the rotating shaft.

[0012] Further description, the shell is fixed with a symmetrically distributed sieve plate, which is located on the side of the adjacent grid frame facing away from the water flow source. The sieve plate is provided with a plurality of groups of linearly distributed holes, and the aperture of the linearly distributed holes increases successively from the position close to the adjacent drum to the position away from it.

[0013] It is further explained that a gap is provided between adjacent knives, and the gap is smaller than the diameter of the smallest hole on the sieve plate.

[0014] Further description, it also includes a pressure plate, which is slidably connected to the outer shell near the lower side of the drum, an elastic member is fixed between the pressure plate and the outer shell, a connecting rod is fixed to the lower side of the pressure plate, a sliding rheostat electrically connected to the motor is fixed to the position of the outer shell near the connecting rod, and the sliding plate of the sliding rheostat is fixed to the connecting rod.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention drives the large impurities located between the left and right blades to move by two toggle plates, so that when the large impurities are reciprocatingly broken, the large impurities are always located at the center of the upper and lower sides of the drum, thereby preventing the upper or lower end of the drum from being tilted due to excessive force, or even causing the drum to be tilted and broken due to force; 2. The adjacent convex blocks are driven to rotate by the toggle plate. When the large impurities are too large or too hard, the convex blocks trigger the pressure switch through hydraulic transmission, so that the motor is shut down urgently to prevent the impurities from breaking the blade during rotation or even causing the drum to break. 3. The small particles of impurities between the extrusion rod and the adjacent blades are crushed to reduce the probability of blockage between the blades and the grid frame, thereby preventing the blades from being blocked from rotating due to blockage between the blades and the grid frame, thereby affecting the crushing effect of the impurities; 4. The movement of the pressure plate drives the connecting rod to move. When the water flow rate accelerates or too much impurities accumulate, the connecting rod adjusts the speed of the motor output shaft through the sliding rheostat to prevent the impurities from flowing too fast and accumulating in large quantities between the left and right blades when the water flow rate is too fast, thereby causing blockage between the left and right blades, thereby affecting the efficiency of impurity crushing in sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a three-dimensional structural cross-sectional view of the housing of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the rotary drum and the blade of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the grid frame of the present invention; Figure 5 It is a three-dimensional structural cross-sectional view of the rotating disk and the toggle plate of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of a convex block and a hydraulic push rod 1 of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating blade fan of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the sieve plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the pressure plate of the present invention; Fig.10 It is a three-dimensional structural cross-sectional view of the pressure plate of the present invention.

[0017] In the above figures: 1: housing, 2: motor, 3: drum, 4: blade, 5: grid frame, 6: transmission part, 7: rotating disk, 8: toggle plate, 9: flow hole, 10: blocking plate, 11: bump, 12: hydraulic push rod one, 13: hydraulic push rod two, 14: trigger rod, 15: pressure switch, 16: extrusion rod, 17: rotating shaft, 18: rotating blade fan, 19: tool, 20: sieve plate, 21: pressure plate, 22: connecting rod, 23: sliding rheostat. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below.

[0019] In the process of crushing impurities in sewage, large impurities (such as wood blocks) are generally large in size and high in hardness. If large impurities are located on the upper or lower side between the two drums, the gap between the upper or lower sides of the two drums will be squeezed, causing the drum to be deflected or even tilted and broken, thereby affecting the crushing efficiency of impurities in sewage.

[0020] Example 1: A double drum anti-jamming crushing type grille, please refer to Figure 1-Figure 5, including a shell 1, a control terminal not shown in the figure is arranged outside the shell 1, a motor 2 electrically connected to the control terminal is installed on the shell 1, a reverse rotation unit for preventing jamming is arranged inside the motor 2, the reverse rotation unit is electrically connected to the control terminal, the shell 1 is rotatably connected to left and right symmetrically distributed drums 3, the symmetrically distributed drums 3 are driven by a gear set, wherein the gear set is composed of symmetrically distributed spur gears respectively fixed to adjacent drums 3, the two spur gears are meshed with each other, the output shaft of the motor 2 is fixed to the adjacent drum 3, the drum 3 is fixed to a linear array of The blades 4 are staggered on different drums 3 and are used to crush impurities. The outer shell 1 is rotatably connected with grid frames 5 that are symmetrically distributed on the left and right sides. The symmetrically distributed drums 3 are all located between the symmetrically distributed grid frames 5. The grid frames 5 are used to guide the impurities on the left and right sides to between the two drums 3 by rotation. The drum 3 and the adjacent grid frames 5 are fixedly connected with a first pulley. The first pulley of the grid frame 5 and the first pulley of the adjacent drum 3 are driven by a first transmission belt. The outer shell 1 is sealed and rotatably connected with a rotating disk 7 that is symmetrically distributed on the left and right sides. The drum 3 and the adjacent The rotating discs 7 are driven by a transmission member 6, which is composed of a one-way gear, a second pulley, a second transmission belt, a third pulley, a bevel gear set, a fourth pulley, a third transmission belt and a fifth pulley from the adjacent rotating drum 3 to the adjacent rotating disc 7. The one-way gear is installed on the housing 1, and the one-way gear is meshed with the spur gear of the adjacent rotating drum 3. When the reverse rotation unit triggers and controls the rotating drum 3 to reverse, the one-way gear can drive the adjacent second pulley to rotate. When the rotating drum 3 rotates normally for crushing operation, the one-way gear cannot drive the adjacent second pulley to rotate. The one-way gear is connected to the adjacent The second pulley, the adjacent second transmission belt and the adjacent third pulley drive the adjacent bevel gear set, and the bevel gear set drives the adjacent rotating disk 7 through the adjacent fourth pulley, the adjacent third transmission belt and the adjacent fifth pulley. The rotating disk 7 is sealed and rotatably connected with a toggle plate 8, and a torsion spring is fixed between the toggle plate 8 and the adjacent rotating disk 7. There are two toggle plates 8, and the two toggle plates 8 are centrally symmetrically distributed. The rear side of the upper toggle plate 8 is tilted downward, and the rear side of the lower toggle plate 8 is tilted upward, which is used to clamp large impurities through the rear side and guide small particle impurities to the adjacent grid frame 5.

[0021] See also Figure 4 and Figure 5The toggle plate 8 is provided with flow holes 9 distributed in a linear array, and the toggle plate 8 is slidably connected with a blocking plate 10 distributed in a linear array. Two elastic members are fixedly connected between the blocking plate 10 and the adjacent toggle plate 8, wherein the elastic member is a tension spring, and the blocking plate 10 cooperates with the adjacent flow holes 9 to block. When the toggle plate 8 guides large impurities to the middle between the two drums 3, the blocking plate 10 does not block the adjacent flow holes 9. When the toggle plate 8 guides small particle impurities to the adjacent grid frame 5, the blocking plate 10 blocks the adjacent flow holes 9. The front and rear widths of the flow holes 9 are smaller than the bar spacing of the adjacent grid frame 5, so as to screen the impurities. The sum of the elastic forces of the two elastic members of the blocking plate 10 is greater than the water flow resistance under normal rotation, so as to prevent the blocking plate 10 from moving when stationary.

[0022] See also Figure 2 and Figure 4-Figure 6 , the position of the toggle plate 8 located in the adjacent rotating disk 7 is fixedly connected with a protrusion 11, and the position of the rotating disk 7 near the adjacent protrusion 11 is fixedly connected with a hydraulic push rod 12, and an elastic member is fixedly connected between the telescopic end of the hydraulic push rod 12 and its fixed part, wherein the elastic member is a compression spring, and the telescopic end of the hydraulic push rod 12 is squeezed and matched with the adjacent protrusion 11, and the upper part of the shell 1 is fixedly connected with a hydraulic push rod 2 13 symmetrically distributed on the left and right, and the hydraulic push rod 12 is connected with the adjacent hydraulic push rod 2 13 through a conduit, and the telescopic end of the hydraulic push rod 2 13 is fixedly connected with a trigger rod 14, and the shell 1 is fixedly connected with symmetrically distributed pressure switches 15 that are squeezed and matched with the adjacent trigger rods 14, respectively, and the pressure switch 15 is electrically connected to the control terminal. When the trigger rod 14 squeezes the adjacent pressure switch 15, the pressure switch 15 sends out an alarm and shuts down the motor 2 through the control terminal. The torsion force of the torsion spring between the toggle plate 8 and the adjacent rotating disk 7 is greater than the water flow resistance, which is used to prevent the toggle plate 8 from twisting, and the toggle plate 8 will twist only after it contacts and squeezes with large impurities.

[0023] When the device is used to crush sewage impurities, the housing 1 is installed to the position where the impurities need to be crushed, and the front side of the housing 1 is facing the water source, and then the motor 2 is turned on through the external terminal, and the output shaft of the motor 2 drives the left drum 3 to rotate counterclockwise (with a rotation speed of 1 / 4000). Figure 1 The top view is the rotation reference), the left drum 3 drives the right drum 3 to rotate clockwise through the gear set, and the two drums 3 respectively drive all the blades 4 thereon to rotate. At the same time, the first pulley of the drum 3 drives the first pulley of the adjacent grid frame 5 to rotate through the adjacent first transmission belt, so that the grid frame 5 rotates, and small particles of impurities and sewage pass through the grid bar spacing of the grid frame 5, and large particles of impurities are guided to between the two drums 3 through the rotation of the grid frame 5, and the blades 4 rotate and crush the large impurities passing between the two drums 3.

[0024] During the rotation of the drum 3, if large impurities are stuck between the blades 4 on the left and right sides, causing the drum 3 to be stuck, the reverse rotation unit of the motor 2 sends a command to the control terminal, and the control terminal controls the output shaft of the motor 2 to rotate back and forth several times through the reverse rotation unit, so that the large impurities continuously reciprocate in and out between the blades 4 on both sides, and the large impurities are crushed (taking wood blocks as an example, the wood blocks are moved back and forth to be crushed section by section). When the output shaft of the motor 2 is reversed, the two drums 3 are reversed to remove the stuck impurities from between the blades 4 on the left and right sides. While the two drums 3 are reversed, the drums 3 are sequentially rotated through the adjacent one-way gears, the adjacent second transmission belts, and the adjacent second transmission belts. The adjacent bevel gear set and the adjacent third conveyor belt drive the adjacent rotating disk 7, and the two rotating disks 7 respectively drive the adjacent toggle plates 8 to rotate counterclockwise, so that the two toggle plates 8 move towards each other, and the large impurities withdrawn from between the left and right blades 4 are clamped to the center position of the upper and lower sides of the drum 3, so that when the large impurities reciprocate between the left and right blades 4, the upper and lower rotating connections of the drum 3 are evenly stressed, preventing the large impurities from being located at the upper and lower ends of the drum 3 and reciprocating in and out, causing the upper or lower end of the drum 3 to be subjected to excessive force and tilt, thereby increasing the distance between the left and right blades 4, affecting the crushing effect of the blades 4, and even causing the drum 3 to be tilted and broken.

[0025] During the movement of the toggle plate 8, if the two toggle plates 8 move in opposite directions, taking the upper toggle plate 8 as an example, the upper toggle plate 8 moves downward, and the water flow impacts the upper sealing plate 10, causing the elastic part of the upper sealing plate 10 to stretch, and the sealing plate 10 loses its blockage of the adjacent flow holes 9. The water flow carries small particles of impurities through the flow holes 9, reducing the amount of small particles of impurities between the blades 4 on the left and right sides, thereby preventing the blades 4 from adhering to impurities and causing blockage, thereby affecting the crushing effect of the blades 4 on the left and right sides on the impurities. When the upper toggle plate 8 moves upward, the water flow squeezes the sealing plate 10, and the elastic part of the sealing plate 10 is reset and blocks the adjacent flow holes 9. The upper toggle plate 8 carries the small particles of impurities thereon and moves toward the adjacent grid frame 5, carrying the small particles to the grid bar spacing of the grid frame 5. The small particles of impurities are carried into the grid frame 5 by the water flow, and then the small particles of impurities flow through the grid bar spacing of the grid frame 5 and enter the next step of sewage treatment.

[0026] After the two toggle plates 8 move and clamp the large impurities to the center position of the upper and lower sides of the drum 3, if the large impurities are too large or too hard, the rear side of the toggle plate 8 will gradually flip upward, and the torsion spring of the toggle plate 8 will gradually twist and store force, and the toggle plate 8 drives the adjacent protrusion 11 to rotate, and the protrusion 11 rotates and squeezes the telescopic end of the adjacent hydraulic push rod 12, so that the telescopic end of the hydraulic push rod 12 gradually shrinks, and the hydraulic push rod 12 squeezes the hydraulic oil in it to the adjacent hydraulic push rod 2 13 through the conduit, and the telescopic end of the hydraulic push rod 2 13 extends out and drives the adjacent trigger rod 14 to move upward, and the trigger rod 14 moves upward and squeezes the adjacent pressure switch 15, and the pressure switch 15 is squeezed and an alarm is sounded. At the same time, the pressure switch 15 is The control terminal turns off the motor 2, and the output shaft of the motor 2 stops rotating, so that the device stops running to prevent the impurities from being too large and causing the blade 4 to break during the rotation process, and even causing the drum 3 to break, thereby affecting the efficiency of impurity crushing. The operator fishes out the large impurities. After the large impurities are taken out, the torsion spring of the toggle plate 8 drives it to reset, and the toggle plate 8 drives the adjacent protrusion 11 to reset. The elastic part of the hydraulic push rod 12 rebounds and drives its telescopic end to reset, so that the telescopic end of the hydraulic push rod 2 13 is reset and drives the adjacent trigger rod 14 to reset. The trigger rod 14 no longer squeezes the adjacent pressure switch 15, the alarm is turned off and the output shaft of the motor 2 starts to rotate again, and the operator repeats the above steps to deal with the impurities in the sewage.

[0027] When the device is not in use, the motor 2 is turned off through the external terminal and then the device is cleaned to prevent the blades 4 on the left and right sides from being blocked.

[0028] In the process of crushing impurities in sewage, impurities in the water are easy to adhere to and accumulate between the grid frame and the blade, causing the rotation of the blade to be blocked, thereby affecting the crushing effect of the impurities, and the impurities flowing through the grid frame are easy to accumulate at the bottom thereof, which is also easy to cause the grid frame to be blocked. Once the grid frame is blocked, small particles of impurities cannot pass through the grid frame, which will cause the impurities to accumulate on the blade, thereby affecting the rotation of the blade, and further affecting the efficiency of the impurity crushing in the sewage.

[0029] Example 2: Based on Example 1, please refer to Figure 1 , Figure 7 and Figure 8 , and also includes a plurality of groups of circumferentially evenly distributed extrusion rods 16, which are respectively fixed to corresponding bars on adjacent grid frames 5, a gap is provided between the blade 4 and the adjacent extrusion rod 16, and an inclined surface is provided at a position of the extrusion rod 16 away from the center of the adjacent grid frame 5, which is used to cooperate with the blade 4 adjacent to crush the impurities between the extrusion rod 16 and the blade 4.

[0030] See also Figure 7 A rotating shaft 17 is rotatably connected inside the grid frame 5, and two rotating blades 18 are fixedly connected to the upper part of the rotating shaft 17. The lower part of the rotating shaft 17 is fixedly connected to tools 19 distributed in a linear array. The upper rotating blades 18 are used to drive the adjacent tools 19 to rotate, and the tools 19 are used to stir the small particles of impurities deposited on the lower side to prevent blockage in the grid frame 5.

[0031] See also Figure 7 and Figure 8 A symmetrically distributed sieve plate 20 is fixed to the rear of the housing 1. The sieve plate 20 is provided with a plurality of groups of holes distributed in a straight line. The apertures of the holes distributed in a straight line increase from the position close to the adjacent drum 3 to the position away from it, so as to form a flow velocity difference between the water flows on the left and right sides of the grid frame 5, thereby rotating the rotating blade 18. A gap is provided between adjacent knives 19, and the gap is smaller than the aperture of the smallest hole on the sieve plate 20, so as to allow small particle impurities to pass through the holes of the sieve plate 20 smoothly and prevent the holes of the sieve plate 20 from being blocked.

[0032] During the rotation of the grid frame 5, the grid frame 5 drives the squeezing rod 16 thereon to rotate, and the squeezing rod 16 cooperates with the corresponding blade 4 on the adjacent drum 3 to stir and chop the small particle impurities between the squeezing rod 16 and the adjacent blade 4, thereby reducing the probability of blockage between the blade 4 and the grid frame 5, and preventing the rotation of the blade 4 from being obstructed due to blockage between the blade 4 and the grid frame 5, thereby affecting the crushing effect of the impurities.

[0033] After the water flows into the grid frame 5, the water flows along the grid bar spacing of the grid frame 5 into the holes of the adjacent sieve plate 20. Taking the sieve plate 20 on the right side as an example, the diameters of the holes distributed in a straight line on the sieve plate 20 on the right side increase from left to right, so that the water flow velocity on the left side of the right grid frame 5 is smaller than the water flow velocity on the right side thereof. The right rotating blade 18 drives the adjacent rotating shaft 17 to rotate counterclockwise, while the right grid frame 5 rotates clockwise (with the rotation of the blade 18 on the right side). Figure 1 The top view is the rotation reference), and the right rotating shaft 17 drives the tools 19 distributed in the adjacent linear array to stir and crush the impurities entering the bottom of the adjacent grid frame 5, thereby reducing the probability of blockage in the grid frame 5 due to accumulation of impurities.

[0034] In the process of crushing impurities in sewage, once the water flow rate increases, causing a large amount of impurities to flow through the blades and accumulate near the blades, the blades will not be able to crush the impurities in time. Over time, the gaps between the blades on different drums will be blocked, thereby affecting the crushing efficiency of impurities in sewage.

[0035] Example 3: Based on Example 2, please refer to Figure 1 , Fig. 9 and Fig.10, and also includes a pressure plate 21. The front and rear sides of the pressure plate 21 are both provided with inclined surfaces. The front inclined surface is used to counteract the water flow. After the water flow speed is accelerated, the water flow squeezes the pressure plate 21 downward through the front inclined surface. The rear inclined surface is used to reduce the obstruction of the pressure plate 21 to the two drums 3. The pressure plate 21 is slidably connected to the housing 1 near the lower side of the drum 3. Two elastic members are fixedly connected between the pressure plate 21 and the housing 1, wherein the elastic member is a compression spring. A connecting rod is fixedly connected to the lower side of the pressure plate 21. 22. A sliding rheostat 23 electrically connected to the motor 2 is fixedly connected to the housing 1 near the connecting rod 22. When the sliding piece of the sliding rheostat 23 moves downward, the resistance of the sliding rheostat 23 decreases, and the current of the motor 2 increases, so that the rotation speed of the output shaft of the motor 2 is accelerated. When the sliding piece of the sliding rheostat 23 moves upward, the resistance of the sliding rheostat 23 increases, and the current of the motor 2 decreases, so that the rotation speed of the output shaft of the motor 2 is slowed down. The sliding piece of the sliding rheostat 23 is fixedly connected to the connecting rod 22.

[0036] When the water flow carries impurities through between the left and right blades 4, if large pieces of impurities are crushed and a large amount of impurities are accumulated between the left and right blades 4, the impurities accumulate and squeeze the pressure plate 21, causing the pressure plate 21 to move downward and causing its elastic member to be gradually compressed, and the pressure plate 21 drives the connecting rod 22 to move downward, and the connecting rod 22 drives the sliding piece of the sliding rheostat 23 to move downward, so that the resistance of the sliding rheostat 23 is reduced, the current of the motor 2 is increased, and the output shaft speed of the motor 2 is accelerated, so that the rotation speed of the drum 3 and the adjacent grid frame 5 is increased, thereby increasing the rate of impurity crushing and reducing the influence of impurity accumulation on the left and right blades 4.

[0037] When the water flow velocity changes, taking the acceleration of the water flow velocity as an example, the water flow squeezes the pressure plate 21 to move downward, and the pressure plate 21 repeats the above steps to move downward and adjusts the rotation speed of the output shaft of the motor 2 through the connecting rod 22 and the sliding rheostat 23, so that the rotation speed of the drum 3 and the adjacent grid frame 5 are proportional to the water flow velocity, preventing the impurities from flowing fast and accumulating in large quantities between the blades 4 on the left and right sides when the water flow velocity is fast enough, thereby causing blockage between the blades 4 on the left and right sides, thereby affecting the efficiency of impurity crushing in the sewage. When the water flow velocity slows down, the two elastic parts of the pressure plate 21 drive it and the connecting rod 22 to move up and reset, and the rotation speed of the motor 2 is reduced through the sliding rheostat 23 to prevent the output shaft of the motor 2 from rotating too fast, thereby causing a long-term large relative friction between the blades 4 on the left and right sides, thereby affecting the service life of the blades 4.

[0038] In summary, the invention includes but is not limited to the above embodiments. Any equivalent substitution or partial improvement made under the spirit and principle of the invention shall be deemed to be within the protection scope of the invention.

Claims

1. A double-drum anti-stuck crushing type grille, comprising a shell (1), the shell (1) being equipped with a motor (2), the motor (2) being provided with a reverse rotation unit, the shell (1) being rotatably connected to symmetrically distributed drums (3), the symmetrically distributed drums (3) being driven by a gear set, the output shaft of the motor (2) being fixedly connected to adjacent drums (3), the drums (3) being fixedly connected to blades (4) distributed in a linear array, the adjacent blades (4) on different drums (3) being staggered, the shell (1) being rotatably connected to symmetrically distributed grid frames (5), the symmetrically distributed drums (3) being located between the symmetrically distributed grid frames (5), the drums (3) and adjacent grid frames (5) being fixedly connected to first pulleys, the first pulleys of the grid frames (5) and the first pulleys of the adjacent drums (3) being driven by a first transmission belt, wherein: It also includes symmetrically distributed rotating disks (7), which are all symmetrically distributed and rotatably connected to the housing (1), the rotating drum (3) and the adjacent rotating disks (7) are driven by a transmission member (6), the rotating disks (7) are rotatably connected to a toggle plate (8), and a torsion spring is fixedly connected between the toggle plate (8) and the adjacent rotating disk (7).

2. A double-drum anti-jamming crushing grille according to claim 1, characterized in that: The number of the paddle plates (8) is two, and the two paddle plates (8) are symmetrically distributed about the center. The positions of the two paddle plates (8) close to the rotating drum (3) are inclined toward opposite sides, so as to guide small particle impurities to the grid frame (5).

3. A double-drum anti-jamming crushing type grille according to claim 2, characterized in that: The toggle plate (8) is provided with flow holes (9) distributed in a linear array, the toggle plate (8) is slidably connected to a blocking plate (10) distributed in a linear array, an elastic member is fixedly connected between the blocking plate (10) and an adjacent toggle plate (8), and the blocking plate (10) cooperates with the adjacent flow holes (9) to block.

4. A double-drum anti-jamming crushing grille according to claim 3, characterized in that: The width of the flow hole (9) is smaller than the spacing between bars of adjacent grid frames (5), and is used to screen impurities.

5. A double-drum anti-jamming crushing type grille according to claim 3, characterized in that: The toggle plate (8) is fixedly connected to a protrusion (11) at a position adjacent to the rotating disk (7); a hydraulic push rod 1 (12) is fixedly connected to a position adjacent to the protrusion (11) in the rotating disk (7); an elastic member is fixedly connected between the telescopic end of the hydraulic push rod 1 (12) and its fixed portion; the telescopic end of the hydraulic push rod 1 (12) is pressed and matched with the adjacent protrusion (11); a symmetrically distributed hydraulic push rod 2 (13) is fixedly connected to the upper portion of the housing (1); the hydraulic push rod 1 (12) is connected to the adjacent hydraulic push rod 2 (13) through a conduit; a trigger rod (14) is fixedly connected to the telescopic end of the hydraulic push rod 2 (13); and pressure switches (15) symmetrically distributed and respectively pressed and matched with the adjacent trigger rods (14) are fixedly connected to the housing (1).

6. A double-drum anti-jamming crushing type grille according to claim 1, characterized in that: It also comprises a plurality of groups of circumferentially evenly distributed extrusion rods (16), wherein the plurality of groups of circumferentially evenly distributed extrusion rods (16) are respectively fixed to corresponding bars on adjacent grid frames (5), and a gap is provided between the blade (4) and the adjacent extrusion rods (16).

7. A double-drum anti-jamming crushing type grille according to claim 6, characterized in that: A rotating shaft (17) is rotatably connected inside the grid frame (5), a rotating blade (18) is fixedly connected to the upper portion of the rotating shaft (17), and cutting tools (19) distributed in a linear array are fixedly connected to the lower portion of the rotating shaft (17).

8. A double-drum anti-jamming crushing type grille according to claim 7, characterized in that: The housing (1) is fixedly connected with symmetrically distributed sieve plates (20), the sieve plates (20) being located on a side of the adjacent grid frame (5) facing away from the water flow source, the sieve plates (20) being provided with a plurality of groups of holes distributed in a straight line, the apertures of the holes distributed in a straight line increasing in sequence from a position close to the adjacent rotating drum (3) to a position away from it.

9. A double-drum anti-jamming crushing grid according to claim 8, characterized in that: A gap is provided between adjacent knives (19), and the gap is smaller than the diameter of the smallest hole on the sieve plate (20).

10. A double-drum anti-jamming crushing type grille according to claim 8, characterized in that: It also includes a pressure plate (21), the pressure plate (21) being slidably connected to the outer shell (1) near the lower side of the drum (3), an elastic member being fixedly connected between the pressure plate (21) and the outer shell (1), a connecting rod (22) being fixedly connected to the lower side of the pressure plate (21), a sliding rheostat (23) electrically connected to the motor (2) being fixedly connected to the position of the outer shell (1) near the connecting rod (22), and a sliding plate of the sliding rheostat (23) being fixedly connected to the connecting rod (22).

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