An intelligent control device for automatically adjusting the flow rate of wet grain feeding
By introducing a measuring mechanism and PLC calculation into the wet grain feeding system, using angle and pressure sensors to detect the thickness of the grain layer and automatically adjusting the gate opening, the problem of difficult control of the wet grain feeding flow rate was solved, and the wet grain receiving efficiency and the accuracy of flow control were improved.
Patent Information
- Application Number
- CN202411913087.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2044-12-24
AI Technical Summary
During the feeding process of wet grain, the flow of the feed gate is difficult to control, resulting in frequent manual adjustments, affecting the receiving efficiency and occupying manpower.
By combining the measuring mechanism with PLC calculation, the thickness of the grain layer is detected by angle sensor and pressure sensor, and the PID algorithm is used to control the motor to adjust the gate opening to achieve automatic flow adjustment.
It realizes automatic adjustment of wet grain feeding flow, reduces manual operation, improves work efficiency, and ensures the accuracy and stability of flow control.
Smart Images
Figure CN119683229B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wet grain feeding, and in particular to an intelligent control device for automatically adjusting the wet grain feeding flow rate. Background Art
[0002] The damp grain enters the pit and is transported to the working tower through the pit scraper for cleaning and distribution, then enters the damp grain bin and then enters the dryer for drying. Since the feed gate of the pit scraper is manually adjusted, all the damp grain with high moisture content is delivered to the processing company or factory during harvesting. The high moisture content and poor scattering of the grain often make it difficult to control the flow of the feed gate. In order to achieve the appropriate flow during the drying period, manual labor is required to frequently go to the underground floor to adjust the feed gate, which takes up manpower and seriously affects the efficiency of receiving damp grain. Summary of the Invention
[0003] The purpose of the present invention is to provide an intelligent control device for automatically adjusting the feeding flow of wet grain. The accurate thickness of the material layer inside the machine can be measured by calculating the trigonometric function inside the PLC, and the set target value is compared with the measured data. The control signal is output to the motor through the PID algorithm to realize the autonomous adjustment of the gate opening and achieve a reasonable flow rate.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent control device for automatically adjusting the flow rate of wet grain feeding, comprising a scraper and a feeding assembly arranged inside the scraper for feeding wet grain, one side of the scraper is provided with a measuring mechanism for detecting the height of the wet grain layer, the measuring mechanism comprises an angle sensor installed on the outer wall of the scraper, a first output shaft is rotated inside the scraper, the first output shaft passes through the outer wall of the scraper and is connected to the angle sensor, and one end of the first output shaft is provided with a first swing arm that rotates following the change in the height of the wet grain layer. When the scraper is moving, the damp grain layer contacts the first swing arm and pushes the first swing arm to rotate. The first swing arm rotates on the scraper through the first output shaft, and the rotation angle of the first output shaft is converted into an angle signal through the angle sensor and transmitted to the PLC; the outer wall of the scraper is provided with an auxiliary mechanism that further cooperates with the measuring mechanism to detect the damp grain layer. The auxiliary mechanism includes a fixed seat fixed on the outer wall of the scraper, a piston tube is provided on the fixed seat, and a first piston rod is slid inside both ends of the piston tube. A first extrusion block and a second extrusion block are respectively provided at one end of the two first piston rods. The first output shaft extends out of the scraper The cam is provided with a second push rod at one end of the machine, and the auxiliary mechanism also includes a second output shaft rotating on the scraper, and a second swing arm which also rotates following the height change of the wet grain layer is provided at one end of the second output shaft. The first push rod is installed at one end of the second output shaft extending out of the scraper, and an air storage cylinder is connected to the lower part of the piston tube. In the process of the first output shaft rotating following the height change of the wet grain layer through the first swing arm, the first output shaft drives the second push rod to squeeze the first piston rod, squeezing the gas at one end of the piston tube into the air storage cylinder. At this time, the second output shaft also follows the The damp grain layer rotates as the height changes, and the second output shaft drives the first push rod to rotate and squeeze the first extrusion block, squeezing the gas at the other end of the piston tube into the air cylinder; the pressure signal received by the pressure sensor inside the air cylinder is synchronously transmitted to the PLC; a gate opening mechanism for controlling the outflow of damp grain is provided below the angle sensor, and the gate opening mechanism includes a discharge port opened on the scraper for controlling the outflow of damp grain, and a motor for controlling the opening of the gate on the discharge port is provided below the discharge port, and the output end of the motor is provided with a second piston rod extending to the inside of the air cylinder, and the air cylinder is connected to an air outlet pipe.
[0005] Preferably, a first swing arm in contact with the moist grain is mounted at one end of the first output shaft.
[0006] Preferably, the second output shaft and the first output shaft are located on the same horizontal line on the scraper, but not on the same vertical line.
[0007] Preferably, a baffle is provided in the middle of the piston tube, the baffle is located at the connection between the air storage cylinder and the piston tube, and compression springs are provided at both ends of the baffle.
[0008] Preferably, one side of the first extrusion block and the second extrusion block are both designed with an inclined surface, and the other side of the first extrusion block and the second extrusion block are both installed with piston rods, and the two piston rods are respectively connected to the compression springs.
[0009] Preferably, one end of the first push rod and the second push rod are both designed to be arc-shaped.
[0010] Preferably, the motor is fixedly arranged on the scraper, and a movable seat is slidably provided on the output end of the motor and moves along the output end when the output end rotates. The movable seat is connected to the thread on the output end of the motor through a ball nut pair.
[0011] Preferably, one side of the movable seat is connected to the gate on the discharge port, and one end of the second piston rod is connected to the movable seat.
[0012] Preferably, a one-way valve is provided at one end of the air storage cylinder that is in communication with the piston tube.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The present invention utilizes a measuring mechanism and internal calculations of the PLC to accurately measure the thickness of the grain layer at different positions inside the scraper. After measuring the thickness of the grain layer, the motor is started by the controller, and the output end of the motor drives the moving seat to move, and the moving seat drives the gate on the discharge port to open. Therefore, the gate on the discharge port can be automatically opened after the accurate thickness of the grain layer inside the scraper is measured according to the internal calculations of the PLC; the size of the opened gate can be automatically controlled according to the thickness of the grain layer, and then the gate flow can be automatically controlled according to the thickness of the grain layer, thereby saving manpower operation, reducing the work pressure of the operator, and improving work efficiency.
[0015] 2. When the present invention is running with materials through the feeding component, the wet grain layer first contacts the first swing arm and then pushes the first swing arm to rotate. The first swing arm rotates on the scraper through the first output shaft, and the rotation angle of the first output shaft is converted into an angle signal through the angle sensor and transmitted to the PLC; the accurate grain layer thickness inside the scraper can be measured through the calculation of trigonometric functions inside the PLC; thereby, the grain layer thickness can be automatically detected.
[0016] 3. In the present invention, after the second extrusion block contacts and extrude the second push rod, the second extrusion block drives the first piston rod at one end to move inside the compression spring, thereby also squeezing the internal gas of the compression spring into the interior of the air cylinder; the second swing arm and the first swing arm are flipped, which jointly increase the pressure of the gas inside the air cylinder and change it, and the pressure sensor inside the air cylinder transmits its pressure signal to the PLC; the grain layer thickness at different positions inside the scraper can be accurately measured by calculation inside the PLC, which is more accurate and effective than using only the first swing arm or the second swing arm to measure the grain layer thickness; the different signals transmitted by the angle sensor and the pressure sensor of the angle sensor are used, and the two sets of signals are calculated inside the PLC to measure the grain layer thickness, thereby further improving the detection accuracy of the grain layer thickness. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 This is a partial structural diagram of the present invention;
[0019] Figure 3 This is the second partial structural diagram of the present invention;
[0020] Figure 4 The third schematic diagram of the partial structure of the present invention;
[0021] Figure 5 The fourth schematic diagram of the partial structure of the present invention;
[0022] Figure 6 This is a partial cross-sectional view of the present invention;
[0023] Figure 7 This is the second partial cross-sectional view of the present invention;
[0024] Figure 8 It is the third partial cross-sectional view of the present invention.
[0025] In the figure: 1. Scraper; 2. Measuring mechanism; 21. Angle sensor; 22. First output shaft; 23. First swing arm; 3. Auxiliary mechanism; 31. Second output shaft; 32. Second swing arm; 33. Fixed seat; 34. Piston tube; 35. Compression spring; 36. First extrusion block; 37. First push rod; 38. First piston rod; 39. Second extrusion block; 310. Second push rod; 4. Gate opening mechanism; 41. Motor; 42. Moving seat; 43. Discharge port; 44. Air cylinder; 45. Air outlet pipe; 46. Second piston rod; 47. Gate; 5. Feeding assembly. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] The present invention provides an intelligent control device for automatically adjusting the flow rate of wet grain feeding, comprising a scraper 1 and a feeding assembly 5 for wet grain feeding arranged inside the scraper 1, a measuring mechanism 2 for detecting the height of the wet grain layer is provided on one side of the scraper 1, the measuring mechanism 2 includes an angle sensor 21 installed on the outer wall of the scraper 1, a first output shaft 22 is rotated inside the scraper 1, the first output shaft 22 passes through the outer wall of the scraper 1 and is connected to the angle sensor 21, and one end of the first output shaft 22 is provided with a As for the rotating first swing arm 23, when the feeding assembly 5 is running with the material, the damp grain layer contacts the first swing arm 23 and pushes the first swing arm 23 to rotate, and the first swing arm 23 rotates on the scraper 1 through the first output shaft 22, and the rotation angle of the first output shaft 22 is converted into an angle signal by the angle sensor 21 and transmitted to the PLC; the first swing arm 23 in contact with the damp grain is installed at one end of the first output shaft 22, and the second output shaft 31 and the first output shaft 22 are located on the same horizontal line on the scraper 1, but not on the same vertical line;
[0028] See Figures 1 to 5 As shown, when the feeding assembly 5 is running with the material, the damp grain layer first contacts the first swing arm 23, and then pushes the first swing arm 23 to rotate. The first swing arm 23 rotates on the scraper 1 through the first output shaft 22, and the rotation angle of the first output shaft 22 is converted into an angle signal by the angle sensor 21 and transmitted to the PLC; the PLC can accurately measure the thickness of the grain layer inside the scraper 1 through the calculation of trigonometric functions; thus, the grain layer thickness can be automatically detected;
[0029] The outer wall of the scraper 1 is provided with an auxiliary mechanism 3 that further cooperates with the measuring mechanism 2 to detect the moist grain layer. The auxiliary mechanism 3 includes a fixed seat 33 fixed to the outer wall of the scraper 1, and a piston tube 34 is provided on the fixed seat 33. A first piston rod 38 slides inside both ends of the piston tube 34, and one end of the two first piston rods 38 is respectively provided with a first extrusion block 36 and a second extrusion block 39. The first output shaft 22 extends out of the scraper 1 and is equipped with a second push rod 310. The auxiliary mechanism 3 also includes a second output shaft 31 rotating on the scraper 1, and one end of the second output shaft 31 is provided with a second swing arm 32 that also rotates following the change in the height of the moist grain layer. The second output shaft 31 extends out of the scraper 1 and is equipped with a first push rod 37. An air storage cylinder 44 is connected to the bottom of the piston tube 34. In the process of the first output shaft 22 rotating through the first swing arm 23 following the change in the height of the moist grain layer, the first output shaft 22 drives When the second push rod 310 is moved, the first piston rod 38 is squeezed, and the gas at one end of the piston tube 34 is squeezed into the gas storage cylinder 44. At this time, the second output shaft 31 also rotates according to the change in the height of the moist grain layer through the second swing arm 32. The second output shaft 31 drives the first push rod 37 to rotate and squeeze the first extrusion block 36, squeezing the gas at the other end of the piston tube 34 into the gas storage cylinder 44; the pressure signal received by the pressure sensor inside the gas storage cylinder 44 is synchronously transmitted to the PLC; a baffle is provided in the middle of the piston tube 34, and the baffle is located at the connecting outlet between the gas storage cylinder 44 and the piston tube 34. Compression springs 35 are provided at both ends of the baffle, and one side of the first extrusion block 36 and the second extrusion block 39 are both designed with inclined surfaces, and piston rods are installed on the other side of the first extrusion block 36 and the second extrusion block 39, and the two piston rods are respectively connected to the compression springs 35, and one end of the first push rod 37 and the second push rod 310 are both designed with circular arcs;
[0030] See Figures 3 to 7As shown, in the process of the wet grain following the movement of the feeding assembly 5, the size of the second output shaft 31 is larger than the size of the first output shaft 22, so that the second swing arm 32 and the first swing arm 23 are installed at different positions, so that the positions where the first swing arm 23 and the second swing arm 32 contact the wet grain are different. As a result, during the process of a part of the wet grain contacting and squeezing the first swing arm 23, the other part of the wet grain contacting and squeezing the second swing arm 32, and the second swing arm 32 flips. When the second swing arm 32 flips, it drives the second output shaft 31 to flip, and the second output shaft 31 drives the first push rod 37 to rotate. During the rotation of the first push rod 37 In the process, the first push rod 37 squeezes the first extrusion block 36. Since one end of the first extrusion block 36 is designed with an inclined surface, during the squeezing process between the first push rod 37 and the first extrusion block 36, the first push rod 37 squeezes the first piston rod 38 at one end of the first extrusion block 36 to move, so that the first piston rod 38 moves inside the compression spring 35 and squeezes the internal gas of the compression spring 35 into the air reservoir 44, thereby changing the internal pressure of the air reservoir 44. The pressure signal of the pressure sensor inside the air reservoir 44 is transmitted to the PLC; the grain layer thickness inside the scraper 1 can be accurately measured through calculation inside the PLC;
[0031] In addition, when the first output shaft 22 rotates, the first output shaft 22 drives the second push rod 310 to rotate. During the rotation of the second push rod 310, the second extrusion block 39 is squeezed. Since the second extrusion block 39 is also designed with an inclined surface of the same size as the first extrusion block 36, after the second extrusion block 39 contacts and squeezes the second push rod 310, the second extrusion block 39 drives the first piston rod 38 at one end to move inside the compression spring 35, thereby also squeezing the internal gas of the compression spring 35 into the interior of the gas reservoir 44; through the second swing arm 32 and the first swing arm 23 Flipping, together causing the gas inside the gas cylinder 44 to increase pressure and change, and the pressure sensor inside the gas cylinder 44 transmits its pressure signal to the PLC; the PLC internal calculation can accurately measure the grain layer thickness at different positions inside the scraper 1, which is more accurate and effective than using only the first swing arm 23 or the second swing arm 32 to measure the grain layer thickness; the different signals transmitted by the angle sensor and the pressure sensor of the angle sensor 21 are used to calculate the two sets of signals through the PLC internal calculation to measure the grain layer thickness, thereby further improving the detection accuracy of the grain layer thickness;
[0032] In addition, according to actual conditions, the second swing arm 32 can be disassembled and the grain layer thickness can be detected only by the first swing arm 23, thereby reducing the cost and improving economic benefits.
[0033] A gate opening mechanism 4 for controlling the outflow of moist grain is provided below the angle sensor 21. The gate opening mechanism 4 includes a discharge port 43 provided on the scraper 1 for controlling the outflow of moist grain. A motor 41 for controlling the opening of a gate 47 on the discharge port 43 is provided below the discharge port 43. A second piston rod 46 extending to the inside of an air reservoir 44 is provided at the output end of the motor 41. An air outlet pipe 45 is connected to the air reservoir 44. The motor 41 is fixedly provided on the scraper 1. A movable seat 42 is provided on the output end of the motor 41 for moving along the output end when the output end rotates. The movable seat 42 is connected to the thread on the output end of the motor 41 by a ball nut pair. One side of the movable seat 42 is connected to the gate 47 on the discharge port 43. One end of the second piston rod 46 is connected to the movable seat 42. A one-way valve is provided at the end of the air reservoir 44 that is connected to the piston tube 34.
[0034] See Figures 3 to 7 As shown, the grain layer thickness at different positions inside the scraper 1 can be accurately measured through calculations inside the PLC. After the grain layer thickness is measured, the motor 41 is started by the controller, and the output end of the motor 41 drives the movable seat 42 to move, and the movable seat 42 drives the gate 47 on the discharge port 43 to open. Thus, after the grain layer thickness inside the scraper 1 can be accurately measured through calculations inside the PLC, the gate 47 on the discharge port 43 can be automatically opened; the size of the opened gate 47 can be automatically controlled according to the grain layer thickness, and the flow of the gate 47 can be automatically controlled according to the grain layer thickness, thereby saving manpower operation, reducing the working pressure of the operator, and improving work efficiency;
[0035] In addition, when the movable seat 42 moves to open the gate 47 on the discharge port 43, the movable seat 42 drives the second piston rod 46 to move, so that one end of the second piston rod 46 moves inside the air cylinder 44 to squeeze the gas inside the air cylinder 44. When the gas pressure inside the air cylinder 44 reaches a certain threshold, the gas inside the air cylinder 44 is ejected through the air outlet pipe 45. Since one end of the air outlet pipe 45 is located on one side of the angle sensor 21, the angle sensor 21 can be cleaned to avoid the dust and debris generated when the wet grain is discharged from the angle sensor 21. The accuracy of the angle sensor 21 is prevented from being affected by the dust and debris generated when the wet grain is discharged.
[0036] Working principle: When the feeding assembly 5 is running with material, the damp grain layer first contacts the first swing arm 23, and then pushes the first swing arm 23 to rotate. The first swing arm 23 rotates on the scraper 1 through the first output shaft 22, and the angle of rotation of the first output shaft 22 is converted into an angle signal by the angle sensor 21 and transmitted to the PLC; the PLC calculates trigonometric functions to accurately measure the thickness of the grain layer inside the scraper 1; thus, the grain layer thickness can be automatically detected;
[0037] When the damp grain follows the feeding assembly 5, the size of the second output shaft 31 is larger than that of the first output shaft 22, so that the second swing arm 32 and the first swing arm 23 are installed at different positions, so that the positions where the first swing arm 23 and the second swing arm 32 contact the damp grain are different. As a result, when a part of the damp grain contacts and squeezes the first swing arm 23, the other part of the damp grain contacts and squeezes the second swing arm 32, and the second swing arm 32 flips. When the second swing arm 32 flips, it drives the second output shaft 31 to flip, and the second output shaft 31 drives the first push rod 37 to rotate. During the rotation of the first push rod 37, The first push rod 37 squeezes the first extrusion block 36. Since one end of the first extrusion block 36 is designed with an inclined surface, during the squeezing process between the first push rod 37 and the first extrusion block 36, the first push rod 37 squeezes the first piston rod 38 at one end of the first extrusion block 36 to move, causing the first piston rod 38 to move inside the compression spring 35 and squeeze the internal gas of the compression spring 35 into the air reservoir 44, thereby changing the internal pressure of the air reservoir 44. The pressure signal of the pressure sensor inside the air reservoir 44 is transmitted to the PLC; the grain layer thickness inside the scraper 1 can be accurately measured through calculations within the PLC;
[0038] When the first output shaft 22 rotates, the first output shaft 22 drives the second push rod 310 to rotate. During the rotation of the second push rod 310, the second extrusion block 39 is squeezed. Since the second extrusion block 39 is also designed with an inclined surface of the same size as the first extrusion block 36, after the second extrusion block 39 contacts and squeezes the second push rod 310, the second extrusion block 39 drives the first piston rod 38 at one end to move inside the compression spring 35, thereby also squeezing the internal gas of the compression spring 35 into the interior of the gas reservoir 44; through the flip of the second swing arm 32 and the first swing arm 23 The rotation of the first swing arm 23 and the second swing arm 32 together increase the pressure of the gas in the air storage cylinder 44, and the pressure signal is transmitted to the PLC by the pressure sensor inside the air storage cylinder 44; the grain layer thickness at different positions inside the scraper 1 can be accurately measured by calculation inside the PLC, which is more accurate and effective than using only the first swing arm 23 or the second swing arm 32 to measure the grain layer thickness; the different signals transmitted by the angle sensor and the pressure sensor of the angle sensor 21 are used to calculate the two sets of signals inside the PLC to measure the grain layer thickness, thereby further improving the detection accuracy of the grain layer thickness;
[0039] The grain layer thickness at different positions inside the scraper 1 can be accurately measured by calculation within the PLC. After the grain layer thickness is measured, the motor 41 is started by the controller, and the output end of the motor 41 drives the movable seat 42 to move, and the movable seat 42 drives the gate 47 on the discharge port 43 to open. Thus, after the grain layer thickness inside the scraper 1 can be accurately measured by calculation within the PLC, the gate 47 on the discharge port 43 can be automatically opened. The size of the opened gate 47 can be automatically controlled according to the grain layer thickness, and the flow of the gate 47 can be automatically controlled according to the grain layer thickness, thereby saving manpower operation, reducing the working pressure of the operator, and improving work efficiency.
[0040] In addition, when the movable seat 42 moves to open the gate 47 on the discharge port 43, the movable seat 42 drives the second piston rod 46 to move, so that one end of the second piston rod 46 moves inside the air cylinder 44 to squeeze the gas inside the air cylinder 44. When the gas pressure inside the air cylinder 44 reaches a certain threshold, the gas inside the air cylinder 44 is ejected through the air outlet pipe 45. Since one end of the air outlet pipe 45 is located on one side of the angle sensor 21, the angle sensor 21 can be cleaned to avoid the dust and debris generated when the wet grain is discharged from the angle sensor 21. The accuracy of the angle sensor 21 is prevented from being affected by the dust and debris generated when the wet grain is discharged.
[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An intelligent control device for automatically adjusting the flow rate of wet grain feeding, comprising a scraper (1) and a feeding assembly (5) arranged inside the scraper (1) for feeding wet grain, characterized in that: A measuring mechanism (2) for detecting the height of the damp grain layer is provided on one side of the scraper (1), the measuring mechanism (2) includes an angle sensor (21) installed on the outer wall of the scraper (1), a first output shaft (22) is provided for rotation inside the scraper (1), the first output shaft (22) passes through the outer wall of the scraper (1) and is connected to the angle sensor (21), and a first swing arm (23) is provided at one end of the first output shaft (22) for rotating following the change in the height of the damp grain layer, when the feeding component (5) is running with the material, the damp grain layer contacts the first swing arm (23) and pushes the first swing arm (23) to rotate, the first swing arm (23) rotates on the scraper (1) through the first output shaft (22), and the angle of rotation of the first output shaft (22) is converted into an angle signal by the angle sensor (21) and transmitted to the PLC; The outer wall of the scraper (1) is provided with an auxiliary mechanism (3) for further cooperating with the measuring mechanism (2) to detect the damp grain layer. The auxiliary mechanism (3) includes a fixed seat (33) fixed on the outer wall of the scraper (1). A piston tube (34) is provided on the fixed seat (33). A first piston rod (38) slides inside both ends of the piston tube (34). One end of the two first piston rods (38) is provided with a first extrusion block (36) and a second extrusion block (39), respectively. A second push rod (310) is installed at one end of the first output shaft (22) extending out of the interior of the scraper (1). The auxiliary mechanism (3) also includes a second output shaft (31) rotating on the scraper (1). One end of the second output shaft (31) is provided with a second swing arm (32) that also rotates following the change in the height of the damp grain layer. The second output shaft (31) extends out of the scraper (1). A first push rod (37) is installed at one end inside the scraper (1), and an air storage cylinder (44) is connected to the bottom of the piston tube (34); when the first output shaft (22) rotates following the change in the height of the wet grain layer through the first swing arm (23), the first output shaft (22) drives the second push rod (310) to squeeze the first piston rod (38), squeezing the gas at one end inside the piston tube (34) into the air storage cylinder (44), and at this time, the second output shaft (31) also rotates following the change in the height of the wet grain layer through the second swing arm (32), and the second output shaft (31) drives the first push rod (37) to rotate and squeeze the first squeezing block (36), squeezing the gas at the other end inside the piston tube (34) into the air storage cylinder (44); the pressure signal received by the pressure sensor inside the air storage cylinder (44) is synchronously transmitted to the PLC; A gate opening mechanism (4) for controlling the outflow of moist grain is provided below the angle sensor (21), and the gate opening mechanism (4) includes a discharge port (43) provided on the scraper (1) for controlling the outflow of moist grain. A motor (41) for controlling the opening of a gate (47) on the discharge port (43) is provided below the discharge port (43), and a second piston rod (46) extending to the interior of an air storage cylinder (44) is provided at an output end of the motor (41), and an air outlet pipe (45) is connected to the air storage cylinder (44).
2. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: A first swing arm (23) in contact with wet grain is mounted on one end of the first output shaft (22).
3. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: The second output shaft (31) and the first output shaft (22) are located on the same horizontal line on the scraper (1), but are not located on the same vertical line.
4. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: A baffle is provided in the middle of the piston tube (34), and the baffle is located at the connection between the air storage cylinder (44) and the piston tube (34). Compression springs (35) are provided at both ends of the baffle.
5. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 4 is characterized in that: One side of the first extrusion block (36) and the second extrusion block (39) are both designed with an inclined surface, and the other side of the first extrusion block (36) and the second extrusion block (39) are both installed with piston rods, and the two piston rods are respectively connected to the compression springs (35).
6. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: One end of each of the first push rod (37) and the second push rod (310) is designed to be arc-shaped.
7. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: The motor (41) is fixedly mounted on the scraper (1), and a movable seat (42) is slidably mounted on the output end of the motor (41) and moves along the output end when the output end rotates. The movable seat (42) is connected to a thread on the output end of the motor (41) via a ball nut pair.
8. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 7 is characterized in that: One side of the movable seat (42) is connected to the gate (47) on the discharge port (43), and one end of the second piston rod (46) is connected to the movable seat (42).
9. The intelligent control device for automatically adjusting the wet grain feeding flow rate according to claim 1 is characterized in that: One end of the air storage cylinder (44) communicating with the piston tube (34) is provided with a one-way valve.
Citation Information
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