Fragment Counting and Control System |
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| 申请号 | US14400077 | 申请日 | 2013-09-04 | 公开(公告)号 | US20150110238A1 | 公开(公告)日 | 2015-04-23 |
| 申请人 | Jian Huang; | 发明人 | Jian Huang; | ||||
| 摘要 | A fragment counting and control system, consisting of mechanical and electronic components such as a fragment counting execution mechanism, a sensor platform, various sensors, a signal counting and processing instrument, a timer, a motor driver and the like. A fragment falls onto the sensor platform from the outlet of the fragment counting execution mechanism, such that the sensor on the sensor platform generates a signal; the signal is transmitted to the signal counting and processing instrument; the signal counting and processing instrument processes the signal and compares the processed signal with a preset value; the processing instrument transmits a control signal to the timer and the motor driver according to the ratio; the timer controls the motor driver to start and stop; the motor driver processes the processing instrument signal, and transmits a driver signal to the motor; and the motor changes rotation according to the driver signal so as to drive a vertical shaft to change rotation, thus controlling the frequency of falling fragments. | ||||||
| 权利要求 | |||||||
| 说明书全文 | The present invention relates to a particle counting and controlling system. At present, counters available in the market mainly focus on the regular pulse, such as coding systems or the like. There are limited researches on counters for irregular signals. An objective of the present invention is to provide a particle counting and controlling system which has the following characteristics:
The objective of the present invention is realized in the following way. The whole system consists of a particle counting actuator, a sensor platform, a plurality of sensors, a dedicated signal count processing apparatus, a timer, a motor drive, a controllable motor and other mechanical and electronic components. Particles fall onto the sensor platform from an outlet of the particle counting actuator so that a signal is generated within the sensors on the sensor platform. The signal is then transmitted to the signal count processing apparatus which processes the signal, compares the signal with a set value, and sends a control signal to the timer or the motor drive based on the ratio. The timer controls the startup or stop of the motor. The motor drive processes the control signal and then sends a signal to the motor. The motor changes the rotating speed according to the signal from the drive to drive a vertical shaft of the particle counting actuator to change in the rotating speed so that the quantity of particles falling from the particle counting actuator in unit time changes. There is a vertical shaft provided, which is mounted within a bushing on a container lid and in clearance fit with the bushing to be able to move up and down and rotate within the bushing, in the center of an inverted-frustum type material container of the particle counting actuator. The vertical shaft is at a lower end thereof provided with a stirring tip having a shape being a portion of a right circular cone envelope, that is, a middle shaft tube of the stirring tip, having on each of two sides thereof a right-triangular frame separately welded, is connected with a rotatable semicircular sheet like a hinge by using the bottom edge and of the two right-triangular frames as a pivot. The middle shaft tube and the lower end of the vertical shaft are secured in a manner of concave-convex fit via a positioning member. The bushing is mounted within a bearing seat on the container lid and able to rotate vertically. A portion of a lower portion of the bushing extending out from the container lid is provided with a gear which forms a transmission pair together with a gear on the motor extending out from the container lid. The motor is mounted on the container. A handwheel has at a lower end thereof, which is mounted at the upper end of the vertical shaft and in concave-convex clearance fit with the vertical shaft, helical teeth forming a clutch together with helical teeth provided at an upper end of the bushing. When the clutch between the vertical shaft and the bushing is engaged, the rotation of the vertical shaft is driven by the motor via a gear. When the clutch is disengaged, the rotation of the vertical shaft is driven by the handwheel. At a small end of the inverted-frustum type material container, there are two overlapped bottom portions. The upper bottom portion is integrated with the container, with a segment of cylinder between the upper bottom portion and the container, one end of an upper bottom portion being integrally welded with the small end of the inverted-frustum type material container while the other end thereof being welded with a circular flange. In the cylinder, there is a movable circular double-sheet component is provided. A horizontal shaft and in clearance fit with a corresponding hole on the cylindrical wall is separately provided at two diameter ends and an extension line of the top sheet. A short vertical shaft tube is provided in the center of the lower surface of the top sheet. The bottom sheet is mounted on the excircle of the short vertical shaft tube and able to horizontally gyrate about the short vertical shaft tube. A central hole is formed on the top sheet with sectorial holes formed around the central hole. The bottom sheet is sectorial, and has a magnet mounted below. A fixed base is provided outside the cylindrical wall, and the fixation of the double-sheet component is realized by a stretchable positioning pin mounted on the rocker arm and the fixed base in a manner of concave-convex or friction fit in aid of magnetic suction. The rocker arm is in concave-convex transition fit with the horizontal shaft. A gyratory magnet is mounted on the periphery of the upper bottom portion. The peripheral magnet has a same height as the magnet of the bottom sheet. The normal working state is horizontal. The lower bottom portion is completely independent. The upper and lower end faces of the lower bottom portion are also circular flanges, a segment of cylindrical wall in which a movable circular double-sheet component is provided is reserved between the upper and lower end faces. Bearing seats and are provided at two ends of the upper surface of the bottom sheet, and short shafts and in clearance fit with the bearing seats and are provided at two ends of the upper sheet. The upper sheet is able to swing about the short shafts and. A horizontal shaft and in clearance fit with a corresponding hole on the cylinder thin wall is separately provided at two diameter ends and an extension line of the top sheet and the bottom sheet may turn over about the horizontal shaft. A torque required by the turnover of the bottom sheet is provided by a rocker arm mounted at one end of the horizontal shaft extending out from the cylindrical wall, and a fixed base having sectorial orifice plates thereon is provided outside the wall of the container. The fixation of the bottom sheet is realized by a stretchable positioning pin mounted on the rocker arm and the sectorial orifice plates on the fixed base in a manner of concave-convex or friction fit in aid of magnetic suction. The rocker arm is in concave-convex transition fit with the horizontal shaft. The normal working state of the circular double-sheet component is oblique. The circular sheets may be of frame or net structures. In the circular double-sheet component within the lower bottom portion, provided are a pressure or vibration or sound sensor, as well as an acceleration sensor and an infrared sensor. Particles fall onto the sensor platform so that a signal is generated within the sensors. The signal is then transmitted by the sensor to the dedicated signal count processing apparatus for processing. The signal count processing apparatus consists of a charge amplifier, a high-pass filter, a wave shaping circuit, a counting circuit, a feedback control circuit, a serial communication circuit and keys on a display screen. The present invention will be further described as below with reference to the accompanying drawings by specific embodiments. As illustrated in the The bushing 1 is mounted within a bearing seat 29 on the container lid 4 and able to rotate vertically. A portion of a lower portion of the bushing 1 extending out from the container lid 4 is provided with a gear 28 which forms a transmission pair together with a gear 3 on the motor 2 extending out from the container lid 4. The motor 2 is mounted on the container 4. A handwheel 30 has at a lower end thereof, which is mounted at the upper end of the vertical shaft and in concave-convex clearance fit with the vertical shaft 5, helical teeth forming a clutch together with helical teeth provided at an upper end of the bushing 1. At a small end of the inverted-frustum type material container, there are two overlapped bottom portions. The upper bottom portion is integrated with the container, with a segment of cylinder 21 between the upper bottom portion and the container, one end of an upper bottom portion being integrally welded with the small end of the inverted-frustum type material container 7 while the other end thereof being welded with a circular flange 13. In the cylinder, there is a movable circular double-sheet component is provided. A horizontal shaft 12 and 35 (same as 16 and 38) in clearance fit with a corresponding hole on the cylindrical wall 21 is separately provided at two diameter ends and an extension line of the top sheet 37. The two sheets may rotate about the horizontal shaft 12 and 35. A short vertical shaft tube 34 is provided in the center of the lower surface of the top sheet 37. The bottom sheet 36 is mounted on the excircle of the short vertical shaft tube 34 and able to horizontally rotate about the short vertical shaft tube 34. A central hole is formed on the top sheet 37 with sectorial holes formed around the central hole. The bottom sheet 36 is sectorial, and has a magnet mounted below. A torque required by the rotation of the double-sheet component is provided by a rocker arm 11 mounted at one end of the horizontal shaft 12 extending out from the cylindrical wall 21. A fixed base 10 is provided outside the upper bottom portion, and the fixation of the double-sheet component is realized by a stretchable positioning pin 9 mounted on the rocker arm 11 and the fixed base 10 in a manner of concave-convex or friction fit in aid of magnetic suction. The rocker arm 11 is in concave-convex transition fit with the horizontal shaft 12. A gyratory magnet 22 is mounted on the periphery of the upper bottom portion. The peripheral magnet 22 has a same height as the magnet 23 of the bottom sheet. The normal working state of the double-sheet component is horizontal. The lower bottom portion is completely independent. The upper and lower end faces of the lower bottom portion are also circular flanges 14 and 19 capable of being connected to the circular flange 13 of the bottom of the material container 7 and a circular flange of a downstream material processing container, a segment of cylindrical wall in which a movable circular double-sheet component is provided is reserved between the upper and lower end faces. Bearing seats 39 and 40, connected to the bottom sheet 31 via screws 41 and 42, are provided at two ends of the bottom sheet 31, and short shafts 43 and 44 in clearance fit with the bearing seats 39 and 40 are provided at two ends of the upper sheet 33. The upper sheet 33 is able to swing about the short shafts 43 and 44. The sheets 31 and 33 are of net structures or flat plates and works obliquely when in normal. A horizontal shaft 16 and 38 in clearance fit with a corresponding hole on the cylinder wall 20 is separately provided at two diameter ends and an extension line of the top sheet 31. The bottom sheet 31 is able to rotate about the horizontal shafts 16 and 38. A torque required by the rotation of the bottom sheet 31 is provided by a rocker arm 17 mounted at one end of the horizontal shaft 16 extending out from the cylinder wall 20. A sectorial fixed base 18 is provided outside the cylindrical wall 20. The fixation of the circular double-sheet component is realized by a stretchable positioning pin 9 mounted on the rocker arm 17 and the sectorial fixed base 18 in a manner of concave-convex or friction fit in aid of magnetic suction. The rocker arm 11 is in concave-convex transition fit with the horizontal shaft 16. The telescopic positioning pin 15 is in transition fit with the rocker arm 17. The lower bottom portion is the sensor platform. In the electronic portion of the system, in the circular double-sheet component moving within the lower bottom portion, provided are a vibration or sound or pressure sensor 32, as well as an acceleration sensor and an infrared sensor. The signal from the sensor 32 is transmitted to the signal count processing apparatus 45 which processes the signal and transmits the signal to the timer 47 or the motor drive 49. The timer 47 controls the startup or stop of the motor 2. The motor drive 49 processes the signal from the signal count processing apparatus 45 and then sends a signal to the motor 2. The motor 2 changes the rotating speed according to the signal to drive the vertical shaft 5 to change in the rotating speed. The signal count processing apparatus 45 consists of a charge amplifier, a high-pass filter, a wave shaping circuit, a counting circuit, a feedback control circuit, a serial communication circuit, keys on a display screen and other components.
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