CN110354980B - Feed height measurement system for milling machine - Google Patents
Feed height measurement system for milling machine Download PDFInfo
- Publication number
- CN110354980B CN110354980B CN201910767938.9A CN201910767938A CN110354980B CN 110354980 B CN110354980 B CN 110354980B CN 201910767938 A CN201910767938 A CN 201910767938A CN 110354980 B CN110354980 B CN 110354980B
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- China
- Prior art keywords
- material level
- gravity sensor
- rod
- level measuring
- gravity
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- 238000005259 measurement Methods 0.000 title claims abstract description 21
- 238000003801 milling Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 80
- 230000005484 gravity Effects 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a feeding height measurement system for a flour mill, which comprises a gravity sensor and a material level measurement rod, wherein the gravity sensor is arranged at the top of an observation cylinder through a fixed supporting block, the top end of the material level measurement rod penetrates through a top plate of the observation cylinder and then is connected to the gravity sensor, and the lower part of the material level measurement rod is positioned in the observation cylinder; the top plate of the observation cylinder is provided with a feed inlet, materials are input into the observation cylinder through the feed inlet, the materials extrude the bottom end of the material level measuring rod to generate gravity and are transmitted to the gravity sensor, and the gravity sensor is converted into digital quantity through internal program operation and is transmitted to the control system. The invention has reasonable layout and convenient and quick installation, adopts digital quantity for measuring data transmission, and avoids the influence of external interference on the system; the gravity sensor is arranged on the outer side of the observation cylinder, so that the maintenance is convenient; the material level measuring rod has various forms and can adapt to the measurement requirements of different process sections; the sealing gasket ensures the tightness of the joint of the material level measuring rod and prevents powder leakage.
Description
Technical Field
The invention relates to the technical field of flour mill equipment, in particular to a feeding height measurement system for a flour mill.
Background
The existing material level height detection sensor is divided into a capacitive sensing system, a laser correlation sensing system and a gravity sensing system. Firstly, a capacitive sensing system is subject to frequency influence when environmental interference is large, and read data are easy to deviate, so that the fluctuation of the rotating speed of a feeding roller is large, and the phenomena of control failure, stalling and the like of the feeding roller are caused; secondly, laser correlation sensing systems are used both in China and abroad at present, and the working mode is that one is an infrared transmitting rod, the other is an infrared receiving rod, corresponding points are distributed on each rod uniformly, the transmitted and received points can be determined according to the use requirement of a user, and the use is generally 10 points. When the material level is at a certain correlation point, the control system can change the rotating speed of the feeding motor according to the signal of the sensor to control the feeding speed, but the sensor is easily affected by external light and can be greatly disturbed in a strong light environment; and finally, the gravity type sensing system measures specific numbers through the strain effect of the sensor, is basically not influenced by static electricity and external strong light, and has unique advantages. But pass through bolted connection with gravity sensor behind the feed baffle in the current structure sensor depression bar, adopt the silica gel material to seal the pad in the middle, in case the pressure damages, need change, and the interior material of feeding bin is unable to operate under the condition, when the gravity sensor damages the change, still need take out the connecting wire from in the feed baffle, these operations need go on under the state of shutting down no material, maintenance change operation inconvenient.
Disclosure of Invention
The invention aims to provide a feeding height measurement system for a pulverizer, and provides a height monitoring device which is convenient to install and maintain and stable in monitoring data.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention relates to a feeding height measurement system for a pulverizer, which comprises a gravity sensor and a material level measurement rod, wherein the gravity sensor is arranged at the top of an observation cylinder through a fixed supporting block, the top end of the material level measurement rod penetrates through a top plate of the observation cylinder and then is connected to the gravity sensor, and the lower part of the material level measurement rod is positioned in the observation cylinder; the top plate of the observation cylinder is provided with a feed inlet, the feed inlet is communicated with the material input cylinder, materials are input into the observation cylinder through the feed inlet, the materials are extruded at the bottom end of the material level measuring rod to generate gravity and are transmitted to the gravity sensor, the gravity sensor is converted into digital quantity through internal program operation, and the measured digital quantity is transmitted to the control system.
Further, a through hole of the material level measuring rod is formed in the top plate of the observation cylinder, a connecting flange is covered on the through hole, the connecting flange is connected to the top plate through a fastening screw, and a sealing gasket is arranged between the bottom surface of the connecting flange and the top plate; the top of the material level measuring rod passes through the central hole of the connecting flange and then is connected with the gravity sensor.
Still further, the sealing gasket is specifically made of flexible materials, and a central hole matched with the diameter of the material level measuring rod is formed in the center of the sealing gasket.
Still further, the flexible material includes silicone, rubber, polyurethane, and cloth.
Still further, the fixed support block is connected with the gravity sensor through a bolt.
Still further, the lower measuring end of the material level measuring rod is specifically designed to be L-shaped and comprises a vertical long rod and a short rod, and an included angle between the vertical long rod and the short rod is a; the one end that vertical stock was kept away from the quarter butt is provided with the screw thread, vertical stock runs through behind the gravity sensor pass through the nut and screw and connect vertical stock.
Still further, the a is specifically set to 15 ° to 90 °.
Compared with the prior art, the invention has the beneficial technical effects that:
The invention relates to a feeding height measurement system for a pulverizer, which comprises a gravity sensor and a material level measurement rod, wherein the gravity sensor is connected to a fixed supporting block and is arranged on the upper part of a top plate of an observation cylinder through a bolt; when the material flows in from the feed inlet of the observation cylinder, downward acting force is generated at the lower end of the material level measuring rod, so that bending acting force is generated on the gravity sensor, strain data is generated on the gravity sensor, the gravity sensor is converted into digital quantity through internal program operation, the measured digital quantity is transmitted to the control system, an instruction is sent to the feed roller through the control system, the timely adjustment of the rotating speed of the feed roller is realized, namely, the gravity sensing is arranged to adjust the rotating speed of the motor of the feed roller by sensing the height of the material in the cylinder and transmitting signals to the control system, so that the material balance is realized, and the material height is effectively stabilized. The invention has reasonable layout and convenient and quick installation, adopts digital quantity for measuring data transmission, and avoids the influence of external interference on the system; the gravity sensor is arranged on the outer side of the observation cylinder, so that the maintenance is convenient; the material level measuring rod has various forms, is convenient and quick to install from top to bottom, and the measuring end with multiple angles can adapt to the measuring requirements of different process sections; the sealing gasket ensures the tightness of the joint of the material level measuring rod and prevents powder leakage.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a front view of a feed height measuring system for a pulverizer of the present invention;
FIG. 2 is a left side view of the feed height measuring system for the pulverizer of the present invention;
FIG. 3 is a top view of the feed height measurement system for the pulverizer of the present invention;
FIG. 4 is an enlarged view of the position A of FIG. 2 in accordance with the present invention;
FIG. 5 is a schematic view of the structure of the level measuring stick of the present invention;
reference numerals illustrate: 1. an observation tube; 2. a feed inlet; 3. a gravity sensor; 4. fixing the supporting block; 5. a material level measuring rod; 6. a sealing gasket; 7. a connecting flange; 8. a material; 9. and (5) fastening a screw.
Detailed Description
1-4, A feeding height measurement system for a pulverizer comprises a gravity sensor 3 and a material level measuring rod 5, wherein the gravity sensor 3 is arranged at the top of an observation barrel 1 through a fixed supporting block 4, the fixed supporting block 4 is connected with the gravity sensor 3 through a bolt, the top end of the material level measuring rod 5 penetrates through the top plate of the observation barrel 1 and then is connected to the gravity sensor 3, and the lower part of the material level measuring rod 5 is positioned in the observation barrel 1; be provided with feed inlet 2 on the roof of observation section of thick bamboo 1, feed inlet 2 and material input section of thick bamboo intercommunication, material 8 pass through feed inlet 2 input to in the observation section of thick bamboo 1, material 8 is right the bottom extrusion of material level measuring stick 5 produces gravity and transmits on the gravity sensor 3, the gravity sensor 3 converts into the digital quantity through internal program operation to with the digital quantity transmission that measures for control system. The gravity sensor 3 is positioned on the outer side of the top plate of the observation cylinder 1, so that the maintenance is convenient; the gravity sensor is a standard component in the prior art, can be obtained through purchasing, and can be assembled according to the specification.
Specifically, the gravity sensor 3 is an existing device, gravity sensing works according to the piezoelectric effect principle, namely the deformation characteristic of the gravity sensor is utilized, one end of a vertical long rod of the material level measuring rod 5, which is far away from the short rod, is provided with threads, and the vertical long rod penetrates through the gravity sensor 3 and is connected to the vertical long rod through screw nuts in a screwing mode, so that the material level measuring rod 5 is fixedly connected with the gravity sensor 3.
As shown in fig. 4, a top plate of the observation tube 1 is provided with a through hole of the material level measuring rod 5, the through hole is a slotted hole to ensure smooth passing of the bottom of the bent material level measuring rod, the through hole is covered with a connecting flange 7, the connecting flange 7 is connected to the top plate through a fastening screw 9, and a sealing gasket 6 is arranged between the bottom surface of the connecting flange 7 and the top plate; the top of the material level measuring rod 5 passes through the central hole of the connecting flange 7, then passes through the connecting hole on the gravity sensor 3 continuously upwards, and then is connected through a nut. Specifically, the sealing gasket 6 is specifically made of a flexible material, and a central hole matched with the diameter of the material level measuring rod 5 is formed in the center of the sealing gasket 6. The flexible material includes silica gel, rubber, polyurethane and cloth, takes wheat processing production facility as the example, preferentially selects the silica gel pad, the lateral wall of the centre bore of silica gel pad with the outer circumference of material level measuring stick 5 closely laminates together, in order to realize the location to the material level measuring stick and to the sealed of the last via hole of roof of observing section of thick bamboo 1, prevents the emergence of leaking the material problem.
As shown in fig. 5, the level measuring rod 5 is specifically designed to be L-shaped and comprises a vertical long rod and a short rod, an included angle between the vertical long rod and the short rod is a, and the top end of the vertical long rod is provided with a threaded section, so that the connection with the gravity sensor 3 is facilitated. The angle a is specifically set to 15-90 degrees, specifically comprises 90 degrees, 85 degrees, 45 degrees, 30 degrees or 15 degrees, so as to adapt to the change of the gravity of different materials. According to different material conditions, taking wheat as an example, the wheat is used for grinding granular materials at 80-90 degrees, the granular materials can be selected according to the particle size, the granular materials are generally preferably selected to be 90 degrees, the leather-like sheet-like materials are used at 15-45 degrees, and the granular materials are generally preferably selected to be 30 degrees.
The working process of the invention is as follows:
firstly, a gravity sensor 3 and a material level measuring rod 5 are installed at a designated position of an observation cylinder 1 according to the design, a material 8 is input into the observation cylinder 1 through a feed inlet 2, the material 8 extrudes the bottom end of the material level measuring rod 5 to generate gravity and transmits the gravity to the gravity sensor 3, the gravity sensor 3 converts the gravity into digital quantity through internal program operation and transmits the measured digital quantity to a control system, the control system is communicated with a feeding roller, and the rotating speed of the feeding roller is timely adjusted according to the material level height so as to ensure uniform and at any time regulation of the feed, so that the quality of flour is ensured in place in subsequent operation.
As shown in fig. 3, if two feeding ports 2 are provided on the observation tube 1, a group of feeding height measuring systems, that is, a group of mutually connected gravity sensors 3 and a material level measuring rod 5 are installed at positions close to each feeding port, so as to ensure accurate feeding back of the height of the material, and timely adjust the rotation speed of the feeding roller.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. A feed height measurement system for milling machine, its characterized in that: the device comprises a gravity sensor (3) and a material level measuring rod (5), wherein the gravity sensor (3) is arranged at the top of an observation barrel (1) through a fixed supporting block (4), the top end of the material level measuring rod (5) penetrates through the top plate of the observation barrel (1) and then is connected to the gravity sensor (3), and the lower part of the material level measuring rod (5) is positioned in the observation barrel (1); the device is characterized in that a feed inlet (2) is formed in a top plate of the observation cylinder (1), the feed inlet (2) is communicated with a material input cylinder, a material (8) is input into the observation cylinder (1) through the feed inlet (2), the material (8) extrudes the bottom end of the material level measuring rod (5) to generate gravity and transmits the gravity to the gravity sensor (3), the gravity sensor (3) converts the gravity into digital quantity through internal program operation, the measured digital quantity is transmitted to a control system, the control system is communicated with a feeding roller, and the rotating speed of the feeding roller is timely adjusted according to the material level height;
The device is characterized in that a through hole of the material level measuring rod (5) is formed in a top plate of the observation barrel (1), the through hole is a slotted hole to ensure smooth passing of the bottom of the bent material level measuring rod (5), a connecting flange (7) is covered on the through hole, the connecting flange (7) is connected onto the top plate through a fastening screw (9), and a sealing gasket (6) is arranged between the bottom surface of the connecting flange (7) and the top plate; the top of the material level measuring rod (5) passes through the central hole of the connecting flange (7) and then is connected with the gravity sensor (3);
The lower measuring end of the material level measuring rod (5) is specifically designed to be L-shaped and comprises a vertical long rod and a short rod, and an included angle between the vertical long rod and the short rod is a; one end of the vertical long rod, which is far away from the short rod, is provided with threads, and the vertical long rod penetrates through the gravity sensor (3) and is connected to the vertical long rod by screwing a nut; the angle a is specifically set to 90 degrees, 85 degrees, 45 degrees, 30 degrees or 15 degrees so as to adapt to the change of the gravity of different materials.
2. The feed height measurement system for a pulverizer as set forth in claim 1, wherein: the sealing gasket (6) is made of flexible materials, and a central hole matched with the diameter of the material level measuring rod (5) is formed in the center of the sealing gasket (6).
3. The feed height measurement system for a pulverizer as set forth in claim 2, wherein: the flexible material comprises silica gel, rubber, polyurethane and cloth.
4. The feed height measurement system for a pulverizer as set forth in claim 1, wherein: the fixed supporting block (4) is connected with the gravity sensor (3) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767938.9A CN110354980B (en) | 2019-08-20 | 2019-08-20 | Feed height measurement system for milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767938.9A CN110354980B (en) | 2019-08-20 | 2019-08-20 | Feed height measurement system for milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110354980A CN110354980A (en) | 2019-10-22 |
| CN110354980B true CN110354980B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910767938.9A Active CN110354980B (en) | 2019-08-20 | 2019-08-20 | Feed height measurement system for milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110354980B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200989806Y (en) * | 2006-11-06 | 2007-12-12 | 河南中原轧辊有限公司 | Flour mill feeding sensor |
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| CN110354980A (en) | 2019-10-22 |
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