CN113566532B - Single-power screw hybrid drying equipment and detection method thereof - Google Patents

Single-power screw hybrid drying equipment and detection method thereof Download PDF

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Publication number
CN113566532B
CN113566532B CN202111114986.1A CN202111114986A CN113566532B CN 113566532 B CN113566532 B CN 113566532B CN 202111114986 A CN202111114986 A CN 202111114986A CN 113566532 B CN113566532 B CN 113566532B
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China
Prior art keywords
gear
bevel gear
screw
bevel
rotating box
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CN202111114986.1A
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CN113566532A (en
Inventor
苏杨
吴亮
荆万仓
邹晨
谢明辉
孟绳续
傅广馀
徐奔驰
缪斌斌
张育牢
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Zhejiang Greatwall Mixers Co ltd
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Zhejiang Greatwall Mixers Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
    • F26B11/14—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/04—Heating arrangements using electric heating
    • F26B23/06—Heating arrangements using electric heating resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/02—Applications of driving mechanisms, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04—Agitating, stirring, or scraping devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass

Abstract

The application discloses single-power screw hybrid drying equipment which comprises a barrel, wherein a driving device is fixedly installed at the top of the barrel, a rotating box is rotatably installed at the upper part in the barrel, a pair of gears fixed with the barrel are installed in the rotating box, and the rotating box rotates around the gears under the driving of the driving device; a pair of screws which are distributed in a conical shape are further installed in the cylinder body, the upper ends of the screws extend into the rotating box and are correspondingly meshed with the gears through bevel gears, so that the screws can revolve around the axes of the gears and rotate around the axes of the screws under the driving of the rotating box; the heating rod is installed inside the screw, the gear is electrically connected with a power supply, and the gear is meshed with the bevel gear to form a heating circuit to supply power to the heating rod. The beneficial effect of this application: through the planetary transmission structure formed by the rotating box, the gear and the screw, the revolution and the rotation of the double screws can be realized under the driving of single power, so that the waste of resources is reduced.

Description

Single-power screw hybrid drying equipment and detection method thereof
Technical Field
The application relates to the technical field of stirring and drying, in particular to a screw mixing type drying device.
Background
Screw mixing drying equipment is often used for the stirring drying of powdery material, in order to improve stirring drying's efficiency, often adopts the twin-screw structure, but current twin-screw mixer when using, all adopts double dynamical structure basically, and every screw rod all connects a driving source, and this will lead to the fact the waste of resource certainly.
Meanwhile, the intelligent degree of the existing screw mixing and drying equipment is not high, and the working condition of the screw mixing and drying equipment cannot be detected in real time in the working process, so that when the screw mixing and drying equipment works abnormally, maintenance personnel cannot find the equipment timely, accidents caused by faults of the screw mixing and drying equipment occur, and certain economic loss or casualties are caused to a company. There is a need for improvements to existing screw mixing and drying equipment.
Disclosure of Invention
One of the objects of the present application is to provide a single-power screw hybrid drying apparatus capable of achieving rotation of twin screws by a single power.
Another object of the present invention is to provide a method for detecting a single-power screw hybrid drying device, which can detect a wear condition of the single-power screw hybrid drying device in real time.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the single-power screw hybrid drying equipment comprises a barrel, wherein a driving device is fixedly installed at the top of the barrel, a rotating box is rotatably installed at the upper part in the barrel, a pair of gears fixed with the barrel are installed in the rotating box, and the rotating box is suitable for being connected with the driving device so as to enable the rotating box to rotate around the axis of the gear under the driving of the driving device; a pair of screws which are distributed in a conical shape are further installed in the cylinder body, the upper ends of the screws extend into the rotating box and are correspondingly meshed with one of the gears through bevel gears respectively, and therefore the screws are suitable for revolving around the axes of the gears and rotating around the axes of the screws under the driving of the rotating box; the heating rod for heating is installed inside the screw rod, and the gear is electrically connected with a power supply, so that the gear is meshed with the bevel gear to form a heating circuit to supply power to the heating rod. Through the planetary transmission structure formed by the rotating box, the gear and the screw, the revolution and the rotation of the double screws can be realized under the driving of single power, so that the waste of resources is reduced.
Preferably, the middle part of the upper end of the rotating box is fixedly provided with a rotating sleeve, the rotating sleeve is in running fit with the cylinder body, and the rotating sleeve extends out of the cylinder body and is connected with the driving device, so that the driving device drives the rotating box to rotate through the rotating sleeve.
Preferably, a fixed shaft is fixed at the upper end of the cylinder body through a fixed seat, the fixed shaft extends into the rotating box, the gear is fixedly connected with the fixed shaft, and the gear is arranged at intervals along the axial direction of the fixed shaft, so that interference between the two screws and the gear is avoided when the two screws are meshed.
Preferably, the rotation box is provided with oblique rotation seats on two sides, and the screw rod extends into the end part in the rotation box and is rotatably connected with the rotation seats, so that the screw rods can be distributed in a conical shape.
Preferably, the gears are a first gear and a second gear respectively, the screws are a first screw and a second screw respectively, the first gear is engaged with the bevel gear on the first screw, the second gear is engaged with the bevel gear on the second screw, and the first gear is located above the second gear; when the diameter of first gear is greater than the diameter of second gear, it installs the balancing weight to rotate the incasement and be located the lateral part of second screw rod to make through the balancing weight adjusts the eccentric quality of rotating the case both sides, thereby improve rotate case pivoted stability.
Preferably, the single-power screw hybrid drying device further comprises a detection system, the power supply is electrically connected with the detection system, the detection system comprises an electrical signal sensor and a processing module, the electrical signal sensor is used for detecting an electrical signal between the bevel gear and the gear, and the processing module is used for receiving a detection signal of the electrical signal sensor in real time and judging the degree of wear of the gear and the bevel gear according to the detected detection signal.
Preferably, the detection system further comprises a control module, the processing module is electrically connected with the control module, telescopic devices are further mounted on two sides inside the rotating box, output ends of the telescopic devices are fixedly connected with the corresponding rotating seats, and the control module is electrically connected with the telescopic devices; the control module is suitable for receiving a control signal of the processing module so as to drive the telescopic device to drive the rotating seat to move, and therefore abrasion compensation between the gear and the bevel gear is achieved.
Preferably, the detection system further comprises a temperature sensor and a humidity sensor; the temperature sensor is used for detecting the heating temperature in the cylinder, and the humidity sensor is used for detecting the drying degree of powder in the cylinder.
A detection method of single-power screw hybrid drying equipment specifically comprises the following detection steps:
s100: the electric signal sensor detects electric signals between the bevel gear and the gear in real time and sends detected electric signal values to the processing module in real time;
s200: when the bevel gear and the gear are abraded, the heating circuit between the bevel gear and the gear is broken, and the processing module can obtain the first gear and the bevel gear according to the signal abnormal time of the electric signal sensorWear clearance t of each gear tooth meshed with each other11、t12、……、t1XAnd the wear clearance t of each gear tooth of the second gear and the bevel gear21、t22、……、t2YWherein X and Y represent the number of teeth of the first gear and the second gear, respectively;
s300: maximum wear clearance t of each gear tooth when the first gear is meshed with the bevel gear1maxGreater than or equal to preset abrasion threshold value t0When the first gear and the bevel gear are worn abnormally, the processing module can send an alarm signal to the control module, so that the control module starts the alarm to give an alarm; maximum wear clearance t of each gear tooth when the second gear is meshed with the bevel gear2maxGreater than or equal to preset abrasion threshold value t0And at the moment, the processing module can send an alarm signal to the control module so that the control module starts the alarm to give an alarm.
Preferably, the detection method of the single-power screw hybrid drying equipment further comprises the following detection steps:
s210: wear gap t detected according to step S20011、t12、……、t1XMarking gear teeth of a first gear and gear teeth of a bevel gear matched with the first gear; wear gap t detected according to step S20021、t22、……、t2YMarking the gear teeth of the second gear and the gear teeth of the bevel gear matched with the second gear;
s400: when maximum wear clearance t1maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2101maxThe specific tooth positions on the first gear and the bevel gear engaged therewith; when maximum wear clearance t2maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2102maxThe specific tooth positions on the first gear and the bevel gear engaged therewith.
Preferably, step S300 further includes the steps of:
s310: the minimum wear clearance of each gear tooth meshed with the first gear and the bevel gear is t1minWhen t is1maxLess than t0And t1minWhen the rotation angle is larger than 0, the processing module can send a control signal to the control module, so that the control module starts the telescopic device through the received control signal, and then the telescopic device drives the rotating seat matched with the first screw rod to move k1t1minTo realize the wear compensation of the first gear and the bevel gear; the minimum wear clearance of each gear tooth meshed with the second gear and the bevel gear is t2minWhen t is2maxLess than t0And t2minWhen the rotation angle is larger than 0, the processing module can send a control signal to the control module, so that the control module starts the telescopic device through the received control signal, and then the telescopic device drives the rotating seat matched with the second screw rod to move k2t2minTo achieve wear compensation for the second gear and the bevel gear, where k represents a correction factor.
Compared with the prior art, the beneficial effect of this application lies in:
(1) through being the conical rotation with the twin-screw and installing in the both sides that rotate the case, the twin-screw still advances to mesh with the first gear and the second gear that rotate the case respectively through the bevel gear of tip simultaneously, so that the twin-screw, form the planetary drive structure between rotation case and first gear and the second gear, thereby drive arrangement can drive the twin-screw through the rotation that the drive rotated the case and carry out the revolution around gear axis and the rotation of self axis, when improving stirring heating efficiency, can also realize the drive mode of single power, in order to avoid the waste to the resource.
(2) The gear is electrically connected with the power supply, so that the gear is meshed with the bevel gear to form a heating circuit, and the heating rod in the screw is powered by the heating circuit to heat the heating rod; meanwhile, the electric signal of the heating circuit can be detected in real time through the electric signal sensor, so that when the gear and the bevel gear are in meshing wear, the wear clearance between the gear and the bevel gear can be obtained according to the abnormal time of the electric signal of the heating circuit, and then the wear degree of the gear and the bevel gear can be judged according to the wear clearance, so that maintenance personnel can timely maintain the worn gear or the bevel gear.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of the invention at the location of detail B in fig. 1.
Fig. 3 is an enlarged view of the invention at the location of detail C in fig. 1.
FIG. 4 is a partial cross-sectional view of the screw of the present invention.
Fig. 5 is a schematic view showing the state of gear tooth wear in the present invention.
Fig. 6 is a schematic flow chart of a first variant embodiment of the present invention.
Fig. 7 is a schematic flow chart of a second variant embodiment of the present invention.
Fig. 8 is a schematic flow chart of a third variant embodiment of the present invention.
In the figure: the device comprises a cylinder body 1, a fixed seat 11, a main gear 21, a driving device 2, a rotating box 3, a rotating sleeve 31, a secondary gear 32, a rotating seat 33, a fixed shaft 43, a first gear 41, a second gear 42, a screw 5, a first screw 51, a second screw 52, a bevel gear 501, a telescopic device 6, a balancing weight 7, a heating rod 8, a detection system 9, a power supply 900, a processing module 91, a control module 92, an alarm 93, an electric signal sensor 941, a temperature sensor 942 and a humidity sensor 943.
Detailed Description
The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
According to the first aspect of this application, a screw rod hybrid drying equipment of single-power is provided, as shown in fig. 1 to 8, including barrel 1, barrel 1's top fixed mounting has drive arrangement 2, barrel 1's inside below is used for placing the powder, barrel 1's inside top is rotated and is installed and is rotated case 3, it installs a pair of gear fixed with barrel 1 to rotate the incasement 3, two gears set up along the axis direction interval that rotates case 3, it is connected with drive arrangement 2 to rotate case 3 simultaneously, so that through starting drive arrangement 2, can drive and rotate case 3 and rotate around the axis of gear. A pair of screws 5 which are distributed in a conical shape are further installed in the barrel 1, the upper ends of the screws 5 extend into the rotating box 3 and are rotatably connected with the rotating box 3, the end parts of the two screws 5 extending into the rotating box 3 are fixedly connected with a bevel gear 501, and the two screws 5 are respectively correspondingly meshed with one of the gears through the bevel gear; therefore, in the process of rotating the rotating box 3, the screw 5 can be driven to synchronously revolve around the gear along with the rotating box 3, and meanwhile, the screw 5 can also rotate around the axis of the screw through the meshing of the bevel gear 501 and the gear. The screw 5 is also internally provided with a heating rod 8 for heating, the outside of the cylinder 1 is provided with a power supply 900, and the power supply 900 is electrically connected with the gear, so that the gear supplies power to the heating rod 8 by meshing with the bevel gear 501 to form a heating circuit. Through the planetary transmission structure that forms between screw rod 5, rotation case 3 and the gear, when improving the stirring heating efficiency to the powder, can also realize that the drive mode of single power drives, simple structure temperature, and can avoid the waste to the resource.
In this embodiment, the upper end of the heating rod 8 is electrically connected to the bevel gear 501 on the screw 5, so that the heating rod 8, the gear, the bevel gear 501 and the power source 900 can form a complete heating loop.
In this embodiment, as shown in fig. 3, inclined rotating seats 33 are installed at both sides of the inside of the rotating box 3; the ends of the two screws 5 extending into the rotating box 3 are respectively and correspondingly connected with the rotating seat 33 on one side in a rotating manner, so that the screws 5 can be stably distributed in a conical manner.
In this embodiment, as shown in fig. 1 and fig. 2, a rotating sleeve 31 is fixedly installed in the middle of the upper end of the rotating box 3, and the rotating sleeve 31 is rotatably fitted with the cylinder 1, and at the same time, a part of the shaft section of the rotating sleeve 31 extends out of the cylinder 1 and is connected with the driving device 2 through a driving assembly, so that the driving device 2 can drive the rotating box 3 to rotate through the rotating sleeve 31. Meanwhile, a fixed shaft 43 is fixed to the upper end of the exterior of the barrel 1 through the fixed seat 11, and the fixed shaft 43 penetrates through the rotating sleeve 31 and extends into the rotating box 3, so that two gears are fixedly connected with the fixed shaft 43, and the gears are arranged at intervals along the axial direction of the fixed shaft 43 to avoid interference when the two screws 5 are engaged with the gears.
In the present embodiment, as shown in fig. 2, the driving assembly includes a main gear 21 and a sub-gear 32. Wherein the main gear 21 is connected with the output end of the driving device 2, and the pinion 32 is connected with the shaft section of the rotating sleeve 31 extending to the outside of the cylinder 1, so that the driving device 2 drives the rotating box 3 to rotate through the meshing of the main gear 21 and the pinion 32.
In this embodiment, the driving device 2 includes a motor and a speed reducer, an output end of the motor is connected to an input end of the speed reducer, and the main gear 21 is installed at an output end of the speed reducer. The output rotating speed of the motor can be reduced through the speed reducer, and meanwhile, the output torque can be improved, so that the driving screw 5 which can be stable in the rotating box 3 can be guaranteed to stir.
In the present embodiment, as shown in fig. 1, the gears are a first gear 41 and a second gear 42, respectively, the screws 5 are a first screw 51 and a second screw 52, respectively, the first gear 41 is engaged with a bevel gear 501 on the first screw 51, the second gear 42 is engaged with a bevel gear 501 on the second screw 52, and the first gear 41 is located above the second gear 42. Therefore, when the diameter of the first gear 41 is larger than that of the second gear 42, in the process that the rotating box 3 drives the driving screw 5 to rotate, because the distances between the first screw 51 and the second screw 52 and the axes of the gears are different, the rotating box 3 can generate overturning moment, which may cause the barrel 1 to topple, and therefore, the counterweight 7 can be installed at the side part of the second screw 52 in the rotating box 3, so that the eccentric mass at the two sides of the rotating box 3 can be adjusted through the counterweight 7, and the rotating stability of the rotating box 3 is improved.
It can be understood that, in the process of stirring by the two screws 5, if the diameters of the first gear 41 and the second gear 42 are equal, the distances between the two screws 5 and the gear axis are equal, so that the two screws 5 can only stir equidistantly, which will inevitably cause uneven stirring of the powder in the barrel 1, especially the powder near the gear axis, so when designing the screws 5, two screws 5 with a long length and a short length are often adopted, so that the short screw 5 is close to the gear axis, thereby increasing the stirring range of the screw 5 to improve the stirring quality of the screw 5, and therefore the diameter of the first gear 41 is larger than that of the second gear 42.
In one embodiment of the present application, as shown in fig. 3, 6 to 8, the single-power screw hybrid drying apparatus further includes a detection system 9, and the power source 900 supplies power to the detection system 9. The detection system 9 includes an electrical signal sensor 941 and a processing module 91, the electrical signal sensor 941 is used for detecting an electrical signal of a heating circuit between the bevel gear 501 and the gear, and the processing module 91 is used for receiving a detection signal of the electrical signal sensor 941 in real time and judging the degree of wear of the gear and the bevel gear 501 according to the detected abnormal time of the detection signal.
It is understood that the number of the electric signal sensors 941 is at least two, one of which is used for detecting an electric signal of the heating circuit formed by the first gear 41 and the bevel gear 501, and the other is used for detecting an electric signal of the heating circuit formed by the second gear 42 and the bevel gear 501.
In this embodiment, as shown in fig. 6 to 8, the detection system 9 further includes a control module 92, the processing module 91 is electrically connected to the control module 92, the telescopic devices 6 are further installed on two sides inside the rotating box 3, the output ends of the telescopic devices 6 are fixedly connected to the corresponding rotating seats 33, and the control module 92 is electrically connected to the telescopic devices 6; the control module 92 can drive the telescopic device 6 to drive the rotating seat 33 to move according to the received control signal of the processing module 91, so as to adjust the fit clearance between the bevel gear 501 at the end of the screw 5 and the gear, and compensate the wear between the gear and the bevel gear 501.
In this embodiment, as shown in fig. 6 to 8, the detection system 9 further includes an alarm 93, and the alarm 93 is electrically connected to the control module 92, so that when the meshing wear between the gear and the bevel gear 501 is abnormal, an alarm can be given to remind a maintenance worker.
Meanwhile, the detection system 9 further includes a temperature sensor 942 and a humidity sensor 943. Both the temperature sensor 942 and the humidity sensor 943 are installed under the inside of the cylinder 1 so that the heating temperature inside the cylinder 1 is detected by the temperature sensor 942, thereby ensuring that the cylinder 1 can maintain a constant heating temperature. The humidity sensor 943 can detect the dryness of the powder in the cylinder 1, so that the dryness of the powder in the cylinder 1 can be known in real time.
It can be understood that a rheostat is further connected in the heating circuit formed by the power source 900, the gear, the bevel gear 501 and the heating rod 8, so that when the heating temperature in the cylinder 1 exceeds or is lower than a set temperature, the voltage or the current of the heating circuit can be changed by adjusting the resistance value of the rheostat, thereby ensuring that the heating temperature in the cylinder 1 is always within a set heating temperature range.
In one embodiment of the present application, as shown in fig. 6, a positive electrode of a power source 900 may be electrically connected to the first gear 41, a negative electrode of the power source 900 is electrically connected to the second gear 42, and the heating rods 8 inside the two screws 5 are connected in series through a rotating joint, so that a closed series heating loop is formed among the power source 900, the first gear 41, the bevel gear 501 on the first screw 51, the heating rod 8 in the second screw 52, the bevel gear 501 on the second screw 52, and the second gear 42.
It is understood that when the power source 900 is a grid power source, the positive pole represents a live wire and the negative pole represents a neutral wire, and the positive pole and the negative pole of the power source 900 are used only for convenience of description.
In one embodiment of the present application, as shown in fig. 7 and 8, a positive electrode of a power supply 900 is electrically connected to the first gear 41 and the second gear 42, respectively, and a negative electrode of the power supply 900 is electrically connected to the heating rods 8 in the first screw 51 and the second screw 52, respectively, so that a closed heating loop is formed among the power supply 900, the first gear 41, the bevel gear 501 on the first screw 51, and the heating rod 8 in the first screw 51, and meanwhile, a closed heating loop is formed among the power supply 900, the second gear 42, the bevel gear 501 on the second screw 52, and the heating rod 8 in the second screw 52, and the two heating loops are connected in parallel with each other.
In another aspect of the present application, there is provided a method for detecting wear of a single-power screw hybrid drying apparatus, as shown in fig. 5 to 8, in which the method for detecting wear of the single-power screw hybrid drying apparatus by using a detection system 9 includes the following steps:
s100: the electric signal sensor 941 detects an electric signal of a heating circuit formed between the bevel gear 501 and the gear in real time, and sends a detected electric signal value to the processing module 91 in real time;
s200: when the bevel gear 501 and the gear are worn, the heating circuit between the bevel gear 501 and the gear is disconnected, and at this time, the processing module 91 can obtain the tooth wear gaps t at the meshing position of the first gear 41 and the bevel gear 501 according to the signal abnormal time of the electrical signal sensor 94111、t12、……、t1XAnd the respective tooth wear clearances t at the meshing positions of the second gear 42 and the bevel gear 50121、t22、……、t2YWherein X and Y represent the numbers of teeth of the first gear 41 and the second gear 42, respectively;
s300: maximum wear clearance t of each gear tooth when the first gear 41 is engaged with the bevel gear 5011maxGreater than or equal to preset abrasion threshold value t0When it is, thenThe wear of the first gear 41 and the bevel gear 501 is abnormal, and at this time, the processing module 91 may send an alarm signal to the control module 92, so that the control module 92 starts the alarm 93 to give an alarm, thereby reminding maintenance personnel; maximum wear clearance t of each gear tooth when second gear 42 is engaged with bevel gear 5012maxGreater than or equal to preset abrasion threshold value t0At this time, it indicates that the second gear 42 and the bevel gear 501 are abnormally worn, and at this time, the processing module 91 may send an alarm signal to the control module 92, so that the control module 92 starts the alarm 93 to give an alarm.
It can be understood that, during the stirring process of the screw 5, according to the linear velocity calculation formula of the planetary gear train, the linear velocities v of the two bevel gears 501 relative to the first gear 41 and the second gear 42 can be obtained1And v2Therefore, according to the abnormal time T of the electrical signal obtained by the processing module 92, the gear tooth wear clearance T at any position where the first gear 41 and the bevel gear 501 are engaged can be calculated and obtained1n=v1•T1nWherein T is1nRepresents the abnormal time of the electric signal caused by the abrasion of the gear teeth at any position where the first gear 41 and the bevel gear 501 are engaged; and the gear tooth wear clearance t at any position where the second gear 42 and the bevel gear 501 are engaged2n=v2•T2nWherein T is2nAnd represents the abnormal time of the electric signal due to the wear of the gear teeth at any position where the second gear 42 and the bevel gear 501 are engaged.
It will also be appreciated. Wear threshold t0The setting can be based on actual specific parameters of the first gear 41 and the second gear 42, such as the wear threshold t0May be 10% of the width of the teeth.
In this embodiment, when the heating circuit is a series circuit as shown in fig. 6, the electric signal sensor 941 may employ a voltage sensor, and it is connected in parallel with the heating circuit formed by the first gear 41 and the bevel gear 501 and the heating circuit formed by the second gear 42 and the bevel gear 501, respectively, when the heating circuit is in normal operation, the voltage signal detected by the voltage sensor is the partial voltage of the heating circuit relative to the heating circuit, and when the gears and the bevel gear 501 are worn, the heating circuit is in an open circuit state, and at this time, the voltage sensor is equivalent to directly detecting the power voltage, so that the electric signal value of the voltage sensor is abnormal.
It can be understood that in the heating circuit, since the resistance value of the heating rod 8 is larger, the voltage division value on the heating rod 8 is largest, and the voltage division value of the heating circuit formed by the gear and the bevel gear 501 is smaller, so that when the first gear 41 and the bevel gear 501 are located at the wear position, the voltage sensor of the heating circuit formed by the first gear 41 and the bevel gear 501 is equivalent to a wire, and at this time, the voltage division value of the heating circuit formed by the second gear 42 and the bevel gear 501 is slightly increased, but the detection result of the voltage sensor connected in parallel with the heating circuit formed by the second gear 42 and the bevel gear 501 is not affected.
In this embodiment, when the heating circuit is a parallel circuit as shown in fig. 7 and 8, the electric signal sensor 941 may be a voltage sensor or a current sensor. When the electric signal sensors are voltage sensors, the two voltage sensors are respectively connected in parallel with a heating circuit formed by the gear and the bevel gear 501, the detection process is as described above, and the voltage sensors on the two parallel loops are not affected by each other. When the electric signal sensor is a current sensor, the two current sensors are respectively connected in series to the two parallel heating circuits, and when the gear and the bevel gear 501 are worn, the heating circuits are in an open circuit state, and the detection value of the current sensor is zero, so that the detection value of the current sensor is abnormal.
In this embodiment, the detection method of the single-power screw hybrid drying device further includes the following detection steps:
s210: wear gap t detected according to step S20011、t12、……、t1XThe teeth of the first gear 41 and the teeth of the bevel gear 501 that mates with the first gear 41 are marked; wear gap t detected according to step S20021、t22、……、t2YThe teeth of the second gear 42 and the teeth of the bevel gear 501 that mates with the second gear 42 are marked;
s400: when maximum wear clearance t1maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2101maxThe specific gear tooth position on the first gear 41 and the bevel gear 501 engaged therewith; when maximum wear clearance t2maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2102maxThe specific gear positions of the first gear 41 and the bevel gear 501 engaged with the first gear are located, so that the worn gear teeth can be directly and accurately repaired in the subsequent maintenance process of the first gear 41, the second gear 42 and the bevel gear 501.
It will be appreciated that in actual production practice, gears of larger sizes, due to their high tooling costs, are generally not scrapped directly after wear has occurred, and the worn gear teeth can be repaired by gear tooth repair techniques.
For convenience of understanding, the gear tooth mark in step S210 is illustrated by way of example: in the marking of the gear teeth, each gear tooth of the first gear 41 is marked with a1、a2、……、aXSo that the first gear 41 will engage with a when engaging with the bevel gear 5011The teeth of the meshing bevel gear 501 are marked b1Will be reacted with a2The teeth of the meshing bevel gear 501 are marked b2And so on until the last gear tooth of the bevel gear 501 is marked bZ. When an electrical signal abnormality occurs, the processing module 91 may record the abnormal time and the position of the abnormal signal, for example (a)1，b1) Therefore, in the subsequent gear tooth maintenance process, the gear tooth positioning can be directly carried out. The gear teeth of the second gear 42 and the bevel gear 501 on the second screw 52 are labeled in the same manner.
In this embodiment, step S300 further includes the following steps:
s310: the minimum wear clearance of the teeth of the first gear 41 and the bevel gear 501 engaged with each other is t1minWhen t is1maxLess than t0And t1minAbove 0, the processing block 91 may controlThe module 92 sends a control signal, so that the control module 92 starts the telescopic device 6 through the received control signal, and then the telescopic device 6 drives the rotating seat 33 matched with the first screw 51 to move k1t1minTo compensate for wear of the first gear 41 and the bevel gear 501; the minimum wear clearance of the teeth of the second gear 42 and the bevel gear 501 is t2minWhen t is2maxLess than t0And t2minWhen the value is greater than 0, the processing module 91 may send a control signal to the control module 92, so that the control module 92 starts the telescopic device 6 through the received control signal, and further the telescopic device 6 drives the rotating seat 33 matched with the second screw 52 to move k2t2minTo achieve wear compensation for the second gear 42 and the bevel gear 501, where k represents a correction factor.
It is understood that the mixing machine can continue to operate normally when the wear of the gear teeth is not so severe, but noise is generated, and the wear speed of the gear teeth is increased by the wear operation for a long time, so that the wear compensation can be achieved by adjusting the center distance between the gear and the bevel gear 501 in order to secure the stability of the engagement of the gear teeth and reduce the noise. However, when adjusting the center distance, the travel distance of the bevel gear 501 needs to be calculated with a minimum wear clearance, which would otherwise cause direct locking of the gear teeth. Meanwhile, the wear of the gear teeth is in the circumferential direction, and the adjustment of the center distance is in the radial direction, so that when the moving distance of the bevel gear 501 is calculated, correction needs to be performed by a correction coefficient on the basis of the minimum wear clearance.
The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. A detection method of single-power screw hybrid drying equipment is characterized by comprising the following steps: the method comprises the following detection steps:
s100: the heating rod for heating is arranged inside the screw rod, and a complete heating loop can be formed among the heating rod, the first gear, the second gear, the bevel gears and the power supply, wherein the first gear and the second gear respectively form a heating circuit with the corresponding bevel gears in a meshing mode, the electric signal sensor is connected with the heating circuit in a parallel or serial mode so as to detect electric signals of the heating circuit in real time and send detected electric signal values to the processing module in real time;
s200: when the first gear, the second gear and the corresponding bevel gear are abraded, the heating circuit is broken, and at the moment, the processing module can obtain the abrasion clearance t of each gear tooth meshed with the first gear and the bevel gear according to the abnormal signal time of the electric signal sensor11、t12、……、t1XAnd the wear clearance t of each gear tooth of the second gear and the bevel gear21、t22、……、t2Y(ii) a Wherein X and Y represent the number of teeth of the first gear and the second gear, respectively;
s300: maximum wear clearance t of each gear tooth when the first gear is meshed with the bevel gear1maxGreater than or equal to preset abrasion threshold value t0When the first gear and the bevel gear are worn abnormally, the control module starts an alarm to give an alarm; maximum wear clearance t of each gear tooth when the second gear is meshed with the bevel gear2maxGreater than or equal to preset abrasion threshold value t0If so, the abrasion of the second gear and the bevel gear is abnormal, and the control module starts an alarm to give an alarm;
according to the linear velocity calculation formula of the gear train, the linear velocities v of the two bevel gears relative to the first gear and the second gear can be obtained1And v2Therefore, according to the abnormal time T of the electric signal obtained by the processing module, the gear tooth abrasion clearance T at any position where the first gear and the bevel gear are meshed can be calculated1n=v1•T1nWherein T is1nRepresenting the abnormal time of an electric signal caused by abrasion of the gear teeth at any position where the first gear and the bevel gear are meshed; and the gear tooth abrasion clearance t at any position where the second gear and the bevel gear are meshed2n=v2•T2nWherein T is2nAnd represents the abnormal time of the electric signal caused by the abrasion of the gear teeth at any position where the second gear and the bevel gear are meshed.
2. The method of claim 1, wherein the method comprises the steps of: the method also comprises the following detection steps:
s210: wear gap t detected according to step S20011、t12、……、t1XMarking gear teeth of a first gear and gear teeth of a bevel gear matched with the first gear; wear gap t detected according to step S20021、t22、……、t2YMarking the gear teeth of the second gear and the gear teeth of the bevel gear matched with the second gear;
s400: when maximum wear clearance t1maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2101maxThe specific gear tooth position; when maximum wear clearance t2maxGreater than or equal to preset abrasion threshold value t0Then, the maximum wear gap t can be directly obtained according to step S2102maxThe particular gear tooth position.
3. The method of claim 2, wherein the method comprises the steps of: step S300 further includes the steps of:
s310: the minimum wear clearance of each gear tooth meshed with the first gear and the bevel gear is t1minWhen t is1maxLess than t0And t1minWhen the screw rod is larger than 0, the processing module starts the telescopic device through the control module, and then drives the first screw rod to move k through the telescopic device1t1minThe distance of (d); the minimum wear clearance of each gear tooth meshed with the second gear and the bevel gear is t2minWhen t is2maxLess than t0And t2minWhen the screw rod is larger than 0, the processing module starts the telescopic device through the control module, and then drives the first screw rod to move k through the telescopic device2t2minThe distance of (c).
4. A single-power screw hybrid drying apparatus to which the detection method of claim 3 is applied, comprising:
a barrel;
the driving device is fixed at the top of the barrel, a rotating box is rotatably arranged above the inside of the barrel, the first gear and the second gear which are fixed with the barrel are arranged in the rotating box, and the rotating box is suitable for rotating around the axes of the first gear and the second gear under the driving of the driving device;
the pair of screws are installed in the cylinder in a conical manner, the upper ends of the screws extend into the rotating box and are respectively and correspondingly meshed with the first gear and the second gear through installed bevel gears, the screws are suitable for revolving around the axes of the first gear and the second gear and rotating around the axes of the screws under the driving of the rotating box, and heating rods are installed inside the screws; and
and the power supply is electrically connected with the first gear and the second gear respectively, so that the first gear and the second gear are meshed with the corresponding bevel gears to form a heating circuit, and the heating rod is powered.
5. The single-power screw hybrid drying apparatus of claim 4, wherein: the two sides of the rotating box are provided with inclined rotating seats, and the end part of the screw rod extending into the rotating box is rotatably connected with the rotating seats.
6. The single-power screw hybrid drying apparatus of claim 4, wherein: a rotating sleeve is fixedly installed in the middle of the upper end of the rotating box, the rotating sleeve is in rotating fit with the cylinder body, and the rotating sleeve extends out of the cylinder body and is connected with the driving device, so that the driving device drives the rotating box to rotate through the rotating sleeve; the upper end of the cylinder body is fixed with a fixed shaft through a fixed seat, the fixed shaft penetrates through the rotating sleeve and extends into the rotating box, the first gear and the second gear are fixedly connected with the fixed shaft, and the first gear and the second gear are arranged at intervals along the axial direction of the fixed shaft.
7. The single-power screw hybrid drying apparatus of claim 4, wherein: the screw rods are respectively a first screw rod and a second screw rod, the first gear is meshed with the bevel gear on the first screw rod, the second gear is meshed with the bevel gear on the second screw rod, and the first gear is positioned above the second gear; and a balancing weight is arranged on the side part of the second screw rod in the rotating box.
8. Single-power screw hybrid drying apparatus according to any of claims 4 to 7, characterized in that: the single-power screw hybrid drying equipment further comprises a detection system, the power supply is electrically connected with the detection system, the detection system comprises an electric signal sensor and a processing module, the electric signal sensor is used for detecting an electric signal of a heating circuit, the processing module is electrically connected with the electric signal detection module, and the processing module is used for receiving a detection signal of the electric signal sensor in real time, so that the processing module can judge the degree of wear of the first gear, the second gear and the corresponding bevel gear according to the detection signal.
9. The single-power screw hybrid drying apparatus of claim 8, wherein: the detection system also comprises the control module, the processing module is electrically connected with the control module, the telescopic devices are further mounted on two sides in the rotating box, the output ends of the telescopic devices are matched and connected with the corresponding screw rods, and the control module is electrically connected with the telescopic devices; the control module is suitable for receiving the control signal of the processing module so as to drive the telescopic device to drive the screw rod to move.
10. The single-power screw hybrid drying apparatus of claim 8, wherein: the detection system further comprises a temperature sensor and a humidity sensor; the temperature sensor is used for detecting the heating temperature in the cylinder, and the humidity sensor is used for detecting the drying degree of powder in the cylinder.
CN202111114986.1A 2021-09-23 2021-09-23 Single-power screw hybrid drying equipment and detection method thereof Active CN113566532B (en)

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CN102788014A (en) * 2012-08-08 2012-11-21 徐州重型机械有限公司 Gear oil pump tooth surface wearing fault diagnosis device and method
CN103617463A (en) * 2013-12-10 2014-03-05 重庆市科学技术研究院 Gear abrasion speed early warning method
CN103977723A (en) * 2014-06-03 2014-08-13 颜海敏 Spiral band stirring assembly with rotating arm
CN107117511A (en) * 2017-05-22 2017-09-01 长沙海川自动化设备有限公司 Gear detector, building hoist and detection method
CN108905701A (en) * 2018-08-16 2018-11-30 陆锁根 Full ceramics double-spiral conical mixer and its manufacturing method
CN208852745U (en) * 2018-06-26 2019-05-14 山东金昌树新材料科技有限公司 A kind of twin-screw mixing procedure kettle for industrial additive production
CN213078141U (en) * 2020-05-11 2021-04-30 无锡市银杏塑业科技有限公司 Novel production facility of high content 2-chloroethanol

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788014A (en) * 2012-08-08 2012-11-21 徐州重型机械有限公司 Gear oil pump tooth surface wearing fault diagnosis device and method
CN103617463A (en) * 2013-12-10 2014-03-05 重庆市科学技术研究院 Gear abrasion speed early warning method
CN103977723A (en) * 2014-06-03 2014-08-13 颜海敏 Spiral band stirring assembly with rotating arm
CN107117511A (en) * 2017-05-22 2017-09-01 长沙海川自动化设备有限公司 Gear detector, building hoist and detection method
CN208852745U (en) * 2018-06-26 2019-05-14 山东金昌树新材料科技有限公司 A kind of twin-screw mixing procedure kettle for industrial additive production
CN108905701A (en) * 2018-08-16 2018-11-30 陆锁根 Full ceramics double-spiral conical mixer and its manufacturing method
CN213078141U (en) * 2020-05-11 2021-04-30 无锡市银杏塑业科技有限公司 Novel production facility of high content 2-chloroethanol

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