A self-diagnosis decompression system for a spiral cone of a weightless scale and its self-diagnosis method

Abstract

The present invention discloses a self-diagnostic decompression system and a self-diagnostic method for a spiral cone of a weightless scale, which includes a suspension bracket fixed in a metering bin. A support platform is fixed on the bottom plate of the suspension bracket. A plurality of coils are provided on the support platform and fixed to a base. A spiral cone is rotatably connected to the base. The spiral cone is rotatably connected to the upper end of the base and its matrix is in the shape of a bamboo hat. The upper end of the spiral cone corresponds to the feed inlet of the metering bin and its outer surface is provided with spiral blades. The present invention uses a rotatable spiral cone to decompress high-speed materials. The position where the materials contact the spiral blades changes at all times, so that the wear of the materials on the spiral cone is evenly distributed. Due to the rotational movement of the spiral blades, the materials are more evenly dispersed in the metering bin, avoiding contact wear on the fixed area of the metering bin. Through the feedback information of the display control unit and the alarm unit, the staff is reminded to replace the spiral cone in time.

Description

Technical Field

[0001] The invention relates to the field of cone decompression, and in particular to a spiral cone self-diagnosis decompression system for a weightlessness scale and a self-diagnosis method thereof. Background Art

[0002] In the loss-in-weight weighing system, when adding materials to the metering bin, they are mostly in block or granular form, and the adding is characterized by large amount and fast speed. At the same time, because under normal circumstances, the volume of the metering bin is relatively large and the height of the feeding port of the metering bin is relatively high, the gravitational potential energy of the falling materials will also increase. Therefore, the falling of the materials will inevitably cause serious wear on the side walls and bottom of the metering bin.

[0003] In addition, if the material is added directly to the metering bin, a large amount of material will gather at the bottom of the metering bin, and it is easy for the material to stick together at the bottom of the metering bin, resulting in uneven feeding.

[0004] At present, generally, the material is decompressed by installing a decompression cone, so that the speed of the high-speed material is reduced after passing through the decompression cone. For example, the invention patent with announcement number CN202089371 discloses a decompression device for a metering bin, and the invention patent with announcement number CN204399826 discloses a decompression cone bucket device for a metering bin. The disadvantages are: first, the installation of the decompression cone is fixed, which will cause the contact position of the decompression material with the metering bin to be fixed after falling, and fatigue wear will occur after long-term work; second, the high-speed material acts on the fixed decompression cone, which only transfers the wear of the material on the metering bin to the wear of the decompression cone. Therefore, the decompression cone needs to be replaced frequently to ensure the decompression effect of the decompression cone; third, the side of the decompression cone is a smooth straight surface, the contact time between the material and the decompression cone is short, the decompression cone has a weak effect on reducing the speed of the material, and the decompression effect is poor. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a self-diagnostic decompression system and a self-diagnostic method for a spiral cone for a loss-in-weight scale, which can effectively decompress high-speed materials, reduce the wear of the decompression cone, and monitor the wear of the spiral cone in real time.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a spiral cone self-diagnosis decompression system for a weightless scale, comprising a decompression power generation device, a self-diagnosis system and a power storage monitoring system;

[0008] The pressure reducing power generation device comprises:

[0009] A hanging frame, wherein the hanging frame is fixed in the metering bin;

[0010] Base, which is fixed to the lower end of the suspension bracket through a support platform:

[0011] Spiral cone, which is rotatably connected to the upper end of the base and has a hat-shaped matrix. The upper end of the spiral cone corresponds to the feed inlet of the metering bin, and its outer surface is provided with spiral blades;

[0012] A number of coils, which are arranged around the base and evenly distributed on the upper surface of the support platform in a circular array;

[0013] A number of permanent magnets, which are evenly distributed on the bottom surface of the spiral cone in a circular array, and the permanent magnets are mutually adapted to the coils;

[0014] The self-diagnosis system includes:

[0015] Monitoring and processing system; the monitoring and processing system is connected to the decompression power generation device and converts the current signal transmitted by the coil into a voltage signal;

[0016] Monitoring service system, which is used to receive and display the current data information transmitted by the monitoring and processing system, and compare the received current data with the pre-set current threshold range;

[0017] The power storage monitoring system includes:

[0018] AC / DC rectifier, and the current generated by the decompression power generation device is transmitted to the AC / DC rectifier and the power storage unit through a one-way diode;

[0019] Power quantity monitoring unit, which monitors the saturation degree of the stored power in the main power storage unit and the standby power storage unit in the power storage unit in real time, and determines the selection of the power storage path according to the monitoring result.

[0020] Preferably, it further includes a dust-proof cover, which is in the shape of an inverted trapezoid. Its small end is fixed on the support platform, and there is a preset space between the large end face and the lower end face of the matrix of the spiral cone. The acute angle formed by the dust-proof cover inclined surface of the dust-proof cover and the horizontal is 75°.

[0021] Preferably, the monitoring and processing system includes a DC sensor unit and an analog-to-digital conversion unit. The DC sensor unit transmits the current signal transmitted by the coil to the analog-to-digital conversion unit, and the analog-to-digital conversion unit converts the current signal into a voltage signal and then transmits it to the monitoring service system;

[0022] The monitoring service system includes a display control unit and a voice, sound and light alarm unit. The display control unit is used to receive and display the current data information, and the voice, sound and light alarm unit is used to compare the received current data with the pre-set current threshold range.

[0023] Preferably, a spiral shaft is provided at the bottom of the spiral cone, and the spiral shaft is embedded in a cylindrical hole opened in the base and rotatably connected thereto.

[0024] Preferably, a sealing cover capable of covering the cylindrical hole is provided on the upper end surface of the base, and a through hole for the spiral shaft to pass through and adapted thereto is opened on the sealing cover.

[0025] Preferably, the suspension bracket includes a bottom plate, and a plurality of uniformly distributed vertical rods are connected to the circumferential edge of the bottom plate, and the upper ends of the vertical rods are fixed on the metering bin.

[0026] Preferably, the permanent magnet has two inner and outer layers. The circumferential array formed by the outer-layer permanent magnets is arranged on the periphery of the coil, and the circumferential array formed by the inner-layer permanent magnets is arranged on the inner periphery of the coil. The distance between the two layers of permanent magnets is 1.5-2 times the coil diameter, ensuring that there is no interference between the inner and outer layers of permanent magnets at the bottom of the spiral cone and the coil when the spiral cone rotates.

[0027] Preferably, the outer diameter of the spiral blade decreases from bottom to top.

[0028] Preferably, the N poles of the two layers of permanent magnets all face the outer periphery direction of the support platform.

[0029] The present invention also provides a self-diagnosis method for a self-diagnosis decompression system of a spiral cone for a weightless scale, including the following steps;

[0030] Step S1, set the current threshold range in the self-diagnosis system, specifically:

[0031] Based on the structural characteristics of the system, establish a power generation relationship:

[0032] I = f[V, W];

[0033] Wherein, I is the current generated by the power generation device in real time, V is the falling speed of the material at the feed inlet of the metering bin when the device is working normally, W is the wear coefficient of the spiral cone, and 0 ≤ W ≤ 1;

[0034] Step S11, when the spiral cone has no wear, that is, its wear coefficient W is 1, the current generated by the system during operation is I1;

[0035] Step S22, when the wear coefficient W of the spiral cone is 0.9, the current generated by the system during operation is I2;

[0036] Step S23, when the wear coefficient W of the spiral cone is 0.7, the current generated by the system during operation is I3;

[0037] According to the current threshold range, stipulate the real-time current I monitored during the operation of the system:

[0038] If I1 < I, the material falls too fast;

[0039] If I1 ≤ I ≤ I2 and the spiral wear is within 10%, the spiral shaft cone is normal.

[0040] If I2 < I ≤ I3 and the spiral wear is within 10% to 30%, the spiral shaft cone shows mild wear.

[0041] If I3 < I and the spiral wear has exceeded 30%, the spiral shaft cone shows severe wear.

[0042] Step 2: Start the decompression power generation device and the feeding work, turn on the power storage monitoring system in real time and store the power in real time, and turn on the self-diagnosis system after a delay of 5 - 10 seconds.

[0043] Step 3: According to the real-time current I monitored by the self-diagnosis system, make the following judgments:

[0044] (1) If I1 < I, then: the display control unit displays "overspeed", and the voice, sound, and light alarm unit (722) alarms.

[0045] (2) If I1 ≤ I ≤ I2, then the display control unit displays "normal", and the voice, sound, and light alarm unit (722) does not alarm.

[0046] (3) If I2 < I ≤ I3, then the display control unit displays "warning", and the voice, sound, and light alarm unit (722) does not alarm.

[0047] (4) If I3 < I, then the display control unit displays "alert", and the voice, sound, and light alarm unit (722) alarms.

[0048] Preferably, when the decompression power generation device stops working, the self-diagnosis system also stops working, and when the decompression power generation device starts working, the self-diagnosis system is automatically updated.

[0049] Preferably, the method for the power storage monitoring system to work is as follows:

[0050] Step 1: Start the decompression power generation device to work, and the power monitoring unit is updated.

[0051] Step 2: The power monitoring unit monitors the current stored power of the main power storage unit and the standby power storage unit as Q1 and Q2 in real time; the full stored power of the main power storage unit and the standby power storage unit is Q m 、Q n , and the power monitoring unit makes the following judgments:

[0052] (1) If Q1 < 94% × Q m , then the current is only stored in the main power storage unit, the power monitoring unit displays "normal power storage", and continue to repeat Step 2;

[0053] (2) If Q1 ≥ 94% × Q m, the current is stored in the backup power storage unit, and the power monitoring unit displays "main power storage full"; after the main power storage unit is replaced, the power monitoring unit automatically switches to display "normal power storage", the power monitoring unit is updated, and step two is repeated;

[0054] (3) If Q2 ≥ 94% × Q n , the power monitoring unit displays "backup power storage full"; after the backup power storage unit is replaced, the power monitoring unit automatically switches to display "normal power storage", the power monitoring unit is updated, and step two is repeated.

[0055] The beneficial effects of the present invention are as follows:

[0056] (1) The present invention uses a rotatable spiral cone to reduce the pressure of high-speed materials. The position where the materials contact the spiral blades changes constantly, making the wear of the materials on the spiral cone evenly distributed, improving the service life of the spiral cone and having low maintenance costs.

[0057] (2) The materials after being pressure-reduced by the spiral cone will be more evenly dispersed in the metering bin due to the rotational movement of the spiral blades, avoiding contact wear on the fixed area of the metering bin.

[0058] (3) The present invention uses a spiral cone to reduce the pressure of materials. The materials act on the curved surface of the spiral blades, and the pressure-reducing effect on high-speed materials is better.

[0059] (4) On the one hand, the present invention uses the self-generated electric energy of the device without consuming other external electric energy. On the other hand, the wear condition of the spiral cone is indirectly monitored through the self-diagnosis system, so as to judge whether the spiral cone needs to be replaced, which can ensure the safe and normal operation of the pressure-reducing device.

[0060] (5) The present invention avoids the damage of the power storage unit caused by excessive power generation by designing a backup power storage unit and monitoring the power of the power storage unit, ensuring the safety of the power storage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0062] Figure 1 It is a structural schematic diagram of a spiral cone self-diagnosis pressure-reducing system and its self-diagnosis method for a loss-in-weight feeder provided by an embodiment of the present invention;

[0063] Figure 2Explosion diagram of the structural schematic of a self-diagnosis decompression system for a weightless scale and its self-diagnosis method provided by an embodiment of the present invention.

[0064] Figure 3 Schematic diagram of the bottom of the spiral cone provided by an embodiment of the present invention.

[0065] Figure 4 Schematic diagram of the top of the suspension bracket provided by an embodiment of the present invention.

[0066] Figure 5 Schematic diagram of the end face of the relative position of the coil and the permanent magnet provided by an embodiment of the present invention.

[0067] Figure 6 Schematic diagram of the cooperation between the dust cover and the base provided by an embodiment of the present invention;

[0068] Figure 7 Flow chart of the self-diagnosis system provided by an embodiment of the present invention;

[0069] Figure 8 Two-dimensional diagram of current monitoring and judgment of the self-diagnosis system provided by an embodiment of the present invention;

[0070] Figure 9 Flow chart of electricity storage and electricity storage monitoring provided by an embodiment of the present invention.

[0071] Explanation of reference numerals:

[0072] 1 - Spiral cone, 2 - Coil, 3 - Sealing bolt, 4 - Spiral shaft, 5 - Sealing cover, 6 - Sealing ring, 7 - Bearing sleeve, 8 - Upper bearing, 9 - Sleeve, 10 - Lower bearing, 11 - Positioning ring, 12 - Base, 121 - Support platform, 13 - Permanent magnet, 14 - Base bolt, 15 - Suspension bracket, 151 - Base plate, 152 - Vertical rod, 16 - Measuring bin, 17 - Suspension bolt, 18 - Dust cover, 71 - Monitoring and processing system, 711 - DC sensor unit, 712 - Analog-to-digital conversion unit, 72 - Monitoring service system, 721 - Display control unit, 722 - Alarm unit, 91 - One-way diode, 92 - AC / DC rectifier, 93 - Electricity storage unit, 931 - Main electricity storage unit, 932 - Backup electricity storage unit, 94 - Electricity quantity monitoring unit. Detailed implementation manners

[0073] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0074] AsFigures 1 to 6 As shown in the figure, the present invention provides a self-diagnostic decompression system for a spiral cone of a weightless scale, including a decompression power generation device, a self-diagnostic system, and a power storage monitoring system;

[0075] The decompression power generation device includes:

[0076] A suspension bracket 15, which is fixed in the metering bin 16;

[0077] A base 12, which is fixed at the lower end of the suspension bracket 15 through a support platform 121:

[0078] A spiral cone 1, which is rotatably connected to the upper end of the base 12 and its base is in the shape of a bamboo hat. The upper end of the spiral cone 1 corresponds to the feed inlet of the metering bin 16 and its outer surface is provided with spiral blades;

[0079] A number of coils 2, which are arranged around the base 12 and are evenly distributed in a circular array on the upper surface of the support platform 121;

[0080] A number of permanent magnets 13, which are evenly distributed in a circular array on the bottom surface of the spiral cone 1, and the permanent magnets 13 are adapted to the coils 2;

[0081] It further includes a dust-proof cover 18, which is in the shape of an inverted trapezoid. Its small end is fixed on the support platform 121, and there is a preset space between the large end surface and the lower end surface of the base of the spiral cone 1. The dust-proof cover inclined surface 181 of the dust-proof cover 18 forms an acute angle of 75° with the horizontal.

[0082] A spiral shaft 4 is provided at the bottom of the spiral cone 1. The spiral shaft 4 is embedded in a cylindrical hole opened in the base 12 and is rotatably connected thereto.

[0083] A sealing cover 5 capable of covering the cylindrical hole is provided on the upper end surface of the base 12. A through hole for the spiral shaft 4 to pass through and adapted thereto is opened on the sealing cover 5.

[0084] The suspension bracket 15 includes a bottom plate 151, and a number of evenly distributed vertical rods 152 are connected to the circumferential edge of the bottom plate 151. The upper ends of the vertical rods 152 are fixed on the metering bin 16.

[0085] The vertical rod 152 is provided with a long slot hole, which can reduce the weight of the whole device and also has the effect of not blocking the ore powder after the spiral cone 1 decelerates.

[0086] The permanent magnet 13 is provided with an inner layer and an outer layer. The circumferential array formed by the outer-layer permanent magnets 13 is arranged on the periphery of the coil 2, and the circumferential array formed by the inner-layer permanent magnets 13 is arranged on the inner periphery of the coil 2. The distance between the two layers of permanent magnets 13 is 1.5 - 2 times the diameter of the coil 2, ensuring that there is no interference between the inner and outer layers of permanent magnets 13 at the bottom of the spiral cone 1 and the coil 2 when the spiral cone 1 rotates.

[0087] The outer diameter of the spiral blade decreases successively from bottom to top.

[0088] The N poles of the two layers of permanent magnets 13 all face the outer periphery direction of the support platform 121.

[0089] The self-diagnosis system includes:

[0090] A monitoring and processing system 71, which includes a DC sensor unit 711 and an analog-to-digital conversion unit 712. The DC sensor unit 711 transmits the current signal transmitted from the coil 2 to the analog-to-digital conversion unit 712, and the analog-to-digital conversion unit 712 converts the current signal into a voltage signal and then transmits it to the monitoring service system 72;

[0091] The monitoring service system 72 includes a display control unit 721 and a voice, sound, and light alarm unit 722. The display control unit 721 is used to receive and display current data information, and the voice, sound, and light alarm unit 722 is used to compare the received current data with a pre-set current threshold range.

[0092] The electricity storage monitoring system includes:

[0093] An AC / DC rectifier 92. The current generated by the pressure-reducing power generation device is transmitted to the AC / DC rectifier 92 and the electricity storage unit 93 through a one-way diode 91;

[0094] An electricity quantity monitoring unit 94. The electricity quantity monitoring unit 94 monitors the saturation degree of the stored electricity in the main electricity storage unit 931 and the standby electricity storage unit 932 in the electricity storage unit 93 in real time, and determines the selection of the electricity storage path according to the monitoring results.

[0095] During operation, the ore powder sprayed down at high speed from the feed inlet acts on the spiral blade. Due to the principle of kinetic energy and momentum, it drives the spiral cone 1 to rotate, and then drives the two layers of permanent magnets 13 to rotate synchronously to cut the magnetic induction lines to generate electricity.

[0096] Such as Figure 5As shown in the figure, the coil 2 is located between the double-layer permanent magnets 13. Driven by the spiral cone 1, the coil 2 rotates around the central axis without interference relative to the double-layer permanent magnets 13 and cuts the magnetic induction lines to generate electricity. The reason for using the double-layer permanent magnets 13 is that the magnetic induction lines can be directly generated from the N pole to the S pole. At this time, the intensity of the magnetic induction lines is greater, so more electricity is generated. Among them, the model number of the permanent magnets 13 and the model number of the coil are set according to the specific working conditions.

[0097] As Figures 7 to 9 shown, the present invention also provides a self-diagnosis method for the self-diagnosis decompression system of the spiral cone for the weightless scale described in claim 1, including the following steps;

[0098] Step S1. Set the current threshold range in the self-diagnosis system, specifically:

[0099] Based on the structural characteristics of the system, establish a power generation relationship:

[0100] I = f[V, W];

[0101] Wherein, I is the current generated by the power generation device in real time, V is the falling speed of the material at the feeding port of the metering bin when the device is working normally, W is the wear coefficient of the spiral cone, and 0 ≤ W ≤ 1;

[0102] Step S11. When the spiral cone has no wear, that is, its wear coefficient W is 1, the current generated by the system during operation is I1;

[0103] Step S22. When the wear coefficient W of the spiral cone is 0.9, the current generated by the system during operation is I2;

[0104] Step S23. When the wear coefficient W of the spiral cone is 0.7, the current generated by the system during operation is I3;

[0105] According to the current threshold range, specify the real-time current I monitored during the operation of the system:

[0106] If I1 < I, the material falls too fast;

[0107] If I1 ≤ I ≤ I2, the spiral wear is within 10%, then the spiral shaft cone is normal;

[0108] If I2 < I ≤ I3, the spiral wear is within 10% to 30%, then the spiral shaft cone has mild wear;

[0109] If I3 < I, the spiral wear has exceeded 30%, then the spiral shaft cone has severe wear;

[0110] Step two. Start the decompression power generation device and add materials for work. Turn on the power storage monitoring system in real time and store the electricity in real time. Delay for 5 - 10 seconds to turn on the self-diagnosis system;

[0111] Step 3: Based on the real-time current I monitored by the self-diagnosis system, make the following judgments:

[0112] (1) If I1 < I, then: The display control unit 721 displays "overspeed", and the voice and light alarm unit 722 gives an alarm;

[0113] (2) If I1 ≤ I ≤ I2, then the display control unit 721 displays "normal", and the voice and light alarm unit 722 does not give an alarm;

[0114] (3) If I2 < I ≤ I3, then the display control unit 721 displays "early warning", and the voice and light alarm unit 722 does not give an alarm;

[0115] (4) If I3 < I, then the display control unit 721 displays "warning", and the voice and light alarm unit 722 gives an alarm.

[0116] When the decompression power generation device stops working, the self-diagnosis system also stops working. When the decompression power generation device starts working, the self-diagnosis system is automatically updated.

[0117] The method for the electricity storage monitoring system to work is as follows:

[0118] Step 1: Start the decompression power generation device to work, and the electricity quantity monitoring unit 94 is updated;

[0119] Step 2: The electricity quantity monitoring unit 94 monitors the current stored electricity quantities of the main electricity storage unit 931 and the standby electricity storage unit 932 in real time as Q1 and Q2; the full storage electricity quantities of the main electricity storage unit 931 and the standby electricity storage unit 932 are Q m 、Q n , and the electricity quantity monitoring unit 94 makes the following judgments:

[0120] (1) If Q1 < 94% × Q m , then the current is only stored in the main electricity storage unit 931, and the electricity quantity monitoring unit 94 displays "normal electricity storage", and step 2 is continued to be repeated;

[0121] (2) If Q1 ≥ 94% × Q m , then the current is stored in the standby electricity storage unit 932, and the electricity quantity monitoring unit 94 displays "main electricity storage full"; after the main electricity storage unit is replaced, the electricity quantity monitoring unit 94 automatically switches to display "normal electricity storage", the electricity quantity monitoring unit 94 is updated, and step 2 is repeated;

[0122] (3) If Q2 ≥ 94% × Q n , the electricity quantity monitoring unit 94 displays "standby electricity storage full"; after the standby electricity storage unit is replaced, the electricity quantity monitoring unit 94 automatically switches to display "normal electricity storage", the electricity quantity monitoring unit 94 is updated, and step 2 is repeated.

[0123] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A self-diagnostic decompression system for a spiral cone of a weightless scale, characterized in that: It includes a pressure-reducing power generation device, a self-diagnosis system, and a power storage monitoring system; The pressure-reducing power generation device includes: A suspension bracket (15), which is fixed inside the metering bin (16); A base (12), which is fixed to the lower end of the suspension bracket (15) through a support platform (121); A spiral cone (1), which is rotatably connected to the upper end of the base (12) and has a hat-shaped matrix. The upper end of the spiral cone (1) corresponds to the feed inlet of the metering bin (16), and its outer surface is provided with spiral blades; A number of coils (2), which are arranged around the base (12) and evenly distributed in a circular array on the upper surface of the support platform (121); A number of permanent magnets (13), which are evenly distributed in a circular array on the bottom surface of the spiral cone (1), and the permanent magnets (13) are adapted to the coils (2); The self-diagnosis system includes: A monitoring and processing system (71); the monitoring and processing system (71) is connected to the pressure-reducing power generation device and converts the current signal transmitted from the coil (2) into a voltage signal; A monitoring service system (72), which is used to receive and display the current data information transmitted from the monitoring and processing system (71); The power storage monitoring system includes: An AC / DC rectifier (92), and the current generated by the pressure-reducing power generation device is transmitted to the AC / DC rectifier (92) and the power storage unit (93) through a one-way diode (91); A power quantity monitoring unit (94), which monitors the saturation degree of the stored power in the main power storage unit (931) and the standby power storage unit (932) in the power storage unit (93) in real time.

2. The self-diagnostic decompression system of a spiral cone for a weightless scale according to claim 1, characterized in that: It further includes a dust-proof cover (18), which is in the shape of an inverted trapezoid. Its small end is fixed on the support platform (121), and there is a preset space between the large end face and the lower end face of the matrix of the spiral cone (1). The dust-proof slope (181) of the dust-proof cover (18) forms an acute angle of 75° with the horizontal.

3. A self-diagnostic decompression system for a spiral cone of a weightless scale according to claim 1, characterized in that: The monitoring and processing system (71) includes a DC sensor unit (711) and an analog-to-digital conversion unit (712). The DC sensor unit (711) transmits the current signal transmitted from the coil (2) to the analog-to-digital conversion unit (712), and the analog-to-digital conversion unit (712) converts the current signal into a voltage signal and then transmits it to the monitoring service system (72); The monitoring service system (72) includes a display control unit (721) and a voice, sound, and light alarm unit (722). The display control unit (721) is used to receive and display the current data information, and the voice, sound, and light alarm unit (722) is used to compare the received current data with a preset current threshold range.

4. The self-diagnostic decompression system of a spiral cone for a weightless scale according to claim 1, characterized in that: A spiral shaft (4) is provided at the bottom of the spiral cone (1), and the spiral shaft (4) is embedded in a cylindrical hole opened in the base (12) and is rotatably connected thereto.

5. A self-diagnosing decompression system for a spiral cone of a weightless scale according to claim 4, characterized in that: A sealing cover (5) capable of covering the cylindrical hole is provided on the upper end surface of the base (12), and a through hole for the spiral shaft (4) to pass through and adapted to it is opened on the sealing cover (5).

6. The self-diagnosis decompression system of a spiral cone for a weightless scale according to claim 1, characterized in that: The suspension bracket (15) includes a bottom plate (151), and a number of uniformly distributed vertical rods (152) are connected to the circumferential edge of the bottom plate (151), and the upper ends of the vertical rods (152) are fixed to the metering bin (16).

7. A self-diagnostic decompression system for a spiral cone of a weightless scale according to claim 1, characterized in that: The permanent magnet (13) is provided with an inner and an outer layer. The circumferential array formed by the outer-layer permanent magnets (13) is arranged on the periphery of the coil (2), and the circumferential array formed by the inner-layer permanent magnets (13) is arranged on the inner periphery of the coil (2). The distance between the two layers of permanent magnets (13) is 1.5 - 2 times the diameter of the coil (2), ensuring that there is no interference between the inner and outer layers of permanent magnets (13) at the bottom of the spiral cone (1) and the coil (2) when the spiral cone (1) rotates.

8. A self-diagnosis method for a self-diagnosis decompression system of a spiral cone for a weightless scale as described in claim 1, characterized in that, It includes the following steps; Step S1: Set the current threshold range in the self-diagnosis system, specifically: Based on the structural characteristics of this system, establish a power generation relationship: I = f[V, W]; where, I is the current generated by the power generation device in real time, V is the falling speed of the material at the feed inlet of the metering bin when the device is working normally, W is the wear coefficient of the spiral cone, and 0 ≤ W ≤ 1; Step S11: When the spiral cone has no wear, that is, its wear coefficient W is 1, the current generated by the system during operation is I1; Step S22: When the wear coefficient W of the spiral cone is 0.9, the current generated by the system during operation is I2; Step S23: When the wear coefficient W of the spiral cone is 0.7, the current generated by the system during operation is I3; According to the current threshold range, stipulate the real-time current I monitored during the operation of the system: If I1 < I, then the material falls too fast; If I1 ≤ I ≤ I2 and the spiral wear is within 10%, then the spiral shaft cone is normal; If I2 < I ≤ I3 and the spiral wear is within 10% to 30%, then the spiral shaft cone has mild wear; If I3 < I and the spiral wear has exceeded 30%, then the spiral shaft cone has severe wear; Step two: Start the decompression power generation device and feed materials, turn on the power storage monitoring system in real time and store the electric energy in real time, and delay 5 - 10 seconds to turn on the self-diagnosis system; Step three: According to the real-time current I monitored by the self-diagnosis system, give the following judgments: (1) If I1 < I, then: the display control unit (721) displays "overspeed", and the voice and light alarm unit (722) alarms; (2) If I1 ≤ I ≤ I2, then the display control unit (721) displays "normal", and the voice and light alarm unit (722) does not alarm; (3) If I2 < I ≤ I3, then the display control unit (721) displays "early warning", and the voice and light alarm unit (722) does not alarm; (4) If I3 < I, then the display control unit (721) displays "warning", and the voice and light alarm unit (722) alarms.

9. The self-diagnosis method of the self-diagnosis decompression system for the spiral cone of the weightless scale according to claim 8, characterized in that, When the decompression power generation device stops working, the self-diagnosis system also stops working. When the decompression power generation device starts working, the self-diagnosis system is automatically updated.

10. The self-diagnosis method of the self-diagnosis decompression system of the spiral cone for the weightless scale according to claim 8, characterized in that, The method for the power storage monitoring system to work is as follows: Step one: Start the decompression power generation device to work, and the electric energy monitoring unit (94) is updated; Step 2: The power quantity monitoring unit (94) monitors the current stored power quantities of the main power storage unit (931) and the standby power storage unit (932) in real time as Q1 and Q2; the full storage power quantities of the main power storage unit (931) and the standby power storage unit (932) are Q m 、Q n , and the power quantity monitoring unit (94) makes the following judgments: (1) If Q1 < 94% × Q m , the current is only stored in the main power storage unit (931), and the power monitoring unit (94) displays "Normal power storage", and step 2 is continued to be repeated; (2) If Q1 ≥ 94% × Q m , the current is stored in the standby power storage unit (932), and the power monitoring unit (94) displays "main power storage full"; after the main power storage unit is replaced, the power monitoring unit (94) automatically switches to display "normal power storage", the power monitoring unit (94) is updated, and step two is repeated; (3) If Q2 ≥ 94% × Q n , the power monitoring unit (94) displays "Standby power storage full"; after replacing the standby power storage unit, the power monitoring unit (94) automatically switches to display "Normal power storage", the power monitoring unit (94) is updated, and step two is repeated.

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