CN118225215A - Material metering method, device, storage medium and engineering machinery - Google Patents
Material metering method, device, storage medium and engineering machinery Download PDFInfo
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- CN118225215A CN118225215A CN202410352953.8A CN202410352953A CN118225215A CN 118225215 A CN118225215 A CN 118225215A CN 202410352953 A CN202410352953 A CN 202410352953A CN 118225215 A CN118225215 A CN 118225215A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
- G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D19/00—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase
- G05D19/02—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The embodiment of the application provides a material metering method, a device, a storage medium and engineering machinery. The method comprises the following steps: starting a metering process, wherein the metering process comprises a plurality of metering stages; conveying the materials in the bin to a hopper, and acquiring the real-time weight of the materials in the hopper in real time; the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendon; according to the target flow and the metering speed of the material in the current metering stage, the switching frequency of the high-frequency valve is adjusted to adjust the vibration frequency of the pneumatic tendon so as to stably convey the material in the bin to the hopper; when the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, the metering operation of the material in the current metering stage is determined to be completed until the metering operation of a plurality of metering stages is completed, so that the conveying flow of the material is more stable and the material metering is more accurate.
Description
Technical Field
The application relates to the technical field of material metering, in particular to a material metering method, a device, a storage medium and engineering machinery.
Background
In the prior art, when the materials are metered, the metering screw firstly runs at a high-speed frequency, when the weighing sensor feeds back to reach an accurate metering range, the metering screw is switched to run at a low-speed frequency, and when the weighing sensor feeds back to reach a weighing metering set value, the metering is ended.
However, by means of the above method, the material metering is performed, the running frequency of the metering screw is reduced, the conveying flow of the material is reduced, the material on the metering screw is possibly unevenly filled, at the moment, the conveying flow of the material is unstable, the material metering is caused to generate larger errors, and the metering precision of the material is reduced.
Disclosure of Invention
The embodiment of the application aims to provide a material metering method, a device, a storage medium and engineering machinery, which are used for solving the problem that the material metering in the prior art is not accurate enough.
In order to achieve the above object, a first aspect of the present application provides a material metering method applied to an engineering machine, the engineering machine including a bin, a hopper, a pneumatic tendon and an air source assembly, the bin and the hopper being connected by the pneumatic tendon, the pneumatic tendon being connected with the air source assembly by a high frequency valve and a proportional valve, comprising:
starting a metering process, wherein the metering process comprises a plurality of metering stages;
conveying the materials in the bin to a hopper, and acquiring the real-time weight of the materials in the hopper in real time;
The valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendon;
Based on the current metering stage, the switching frequency of the high-frequency valve is adjusted according to the target flow and the metering speed of the material in the current metering stage so as to adjust the vibration frequency of the pneumatic tendon and stably convey the material in the bin to the hopper;
And under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, determining to finish the metering operation of the material in the current metering stage until the metering operation of a plurality of metering stages included in the metering process is finished.
In the embodiment of the application, the metering process comprises a rough weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage comprises: under the condition that the current metering stage is a coarse weighing stage, determining that the metering speed of the current metering stage is a preset maximum metering speed; and adjusting the switching frequency of the high-frequency valve according to the target flow and the preset maximum metering speed.
In the embodiment of the present application, the metering process further includes a fine weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage includes: under the condition that the current metering stage is a precise metering stage, determining that the metering speed of the current metering stage is a preset minimum metering speed; acquiring the target total weight of materials in a hopper in the metering process and the preset drop weight; determining the stage flow of the fine weighing stage according to the target flow, the target total weight and the preset drop weight; and adjusting the switching frequency of the high-frequency valve according to the stage flow and the preset minimum metering speed.
In the embodiment of the application, the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly, and the adjusting of the vibration amplitude of the pneumatic tendon comprises the following steps: determining the real-time flow of the material in the hopper according to the real-time weight and a preset sampling period for the weight of the material in the hopper; based on a preset algorithm, the valve opening of the proportional valve is adjusted in real time according to the flow difference between the real-time flow and the target flow, so that the air pressure of the air input by the air source assembly is adjusted, and the vibration amplitude of the pneumatic tendon is adjusted.
In the embodiment of the application, the metering process comprises a coarse weighing stage and a fine weighing stage, and under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, the metering operation of the material in the current metering stage is determined to be completed until the metering operation of a plurality of metering stages included in the metering process is completed, wherein the metering operation comprises the following steps: under the condition that the current metering stage is a coarse weighing stage, determining that the target weight of the material in the current metering stage is the difference between the target total weight of the material in the metering process and the preset drop weight; under the condition that the real-time weight of the materials in the hopper reaches the difference value, determining to finish the metering operation of the coarse weighing stage, and entering the fine weighing stage after waiting for a preset time length; under the condition that the current metering stage is a fine weighing stage, determining the target weight of the material in the current metering stage as the target total weight of the material in the metering process; in the event that the real-time weight of material in the hopper reaches the target total weight, determining that the metering operation of the fine weighing stage is completed, and determining that the metering operation of a plurality of metering stages included in the metering process is completed.
In the embodiment of the application, the method further comprises the following steps: under the condition that the metering operation of a plurality of metering stages included in the metering process is determined to be completed, judging whether the current weight of the materials in the hopper is in a preset metering error range or not; under the condition that the current weight of the materials in the hopper is in a preset metering error range, determining that the metering result for the materials is qualified in metering; under the condition that the current weight of the materials in the hopper is larger than the upper limit value included in the preset metering error range, determining that the metering result for the materials is metering weighing; and under the condition that the current weight of the materials in the hopper is smaller than the lower limit value included in the preset metering error range, determining that the metering result for the materials is metering undersize.
In the embodiment of the application, the method further comprises the following steps: and under the condition that the metering result for the materials is determined to be metering out-of-balance or metering under-balance, starting an alarm.
In an embodiment of the present application, the hopper is provided with a pneumatic vibrator and a pneumatic butterfly valve, and the method further comprises: and under the condition that the metering result for the materials is determined to be qualified in metering, controlling the pneumatic vibrator and the pneumatic butterfly valve to be started so as to execute the discharging operation on the materials in the hopper.
In the embodiment of the application, the engineering machinery further comprises an arch breaking device and/or a metering air vibrator, wherein the arch breaking device is arranged on the storage bin, the metering air vibrator is connected with the air source assembly, and the method further comprises: after the metering process is started, controlling an arch breaking device and/or a metering air vibrator to start running so as to shake materials in the storage bin; controlling the arch breaking device to stop running under the condition that the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device; and/or under the condition that the real-time weight of the materials in the hopper reaches the gas vibration stopping value of the metering gas vibration, controlling the metering gas vibration to stop running; wherein the arch breaking stop value and the air vibration stop value are determined according to the target total weight of the materials in the hopper in the metering process.
A second aspect of the present application provides a material metering device comprising:
a memory configured to store instructions; and
A processor configured to invoke instructions from the memory and when executing the instructions, to implement the material metering method described above.
A third aspect of the application provides a machine-readable storage medium having instructions stored thereon that, when executed by a processor, cause the processor to be configured to perform the method of metering material described above.
A fourth aspect of the present application provides a construction machine, comprising:
the storage bin is used for storing materials;
the hopper is used for receiving materials in the bin;
the pneumatic tendon is connected with the bin and the hopper and used for stably conveying materials in the bin to the hopper;
The air source assembly is connected with the pneumatic tendon through the high-frequency valve and the proportional valve and is used for treating the air pressure of air; and
The material metering device.
In an embodiment of the present application, the method further includes: the arch breaking device is arranged on the storage bin and used for shaking materials in the storage bin down to the hopper; and/or measuring air vibration, which is connected with the air source component and used for shaking the materials in the bin to the hopper.
In an embodiment of the present application, the method further includes: the pneumatic vibrator is arranged on the hopper and is used for shaking off materials in the hopper; and the pneumatic butterfly valve is arranged on the hopper and is used for executing blanking operation on materials in the hopper.
Through the technical scheme, the valve opening of the proportional valve can be adjusted through the real-time weight and the target flow of the materials in the hopper, so that the vibration amplitude of the pneumatic tendon can be adjusted, and meanwhile, the switching frequency of the high-frequency valve can be adjusted through the target flow of the materials in the hopper and the metering speed of the materials in the current metering stage, so that the vibration frequency of the pneumatic tendon can be adjusted, the conveying flow of the materials is more stable, and the material metering is more accurate.
Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. In the drawings:
FIG. 1 schematically illustrates a schematic view of a work machine according to an embodiment of the present disclosure;
FIG. 2 schematically illustrates a flow diagram of a material metering method according to an embodiment of the application;
FIG. 3 schematically illustrates a flow chart of a material metering method according to another embodiment of the application;
FIG. 4 schematically illustrates a schematic view of a work machine according to another embodiment of the present disclosure;
fig. 5 schematically shows an internal structural view of a computer device according to an embodiment of the present application.
Description of the reference numerals
1. Arch breaking device 2 and bin cover inductive switch
3. Feed bin 4, feed bin low level switch
5. Pneumatic tendon 6, measuring air vibration
7. Pneumatic vibrator 8 and pneumatic butterfly valve
9. Weighing sensor 10, blanking hopper
11. Air source processing assembly 12 and proportional valve
13. High-frequency valve
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the detailed description described herein is merely for illustrating and explaining the embodiments of the present application, and is not intended to limit the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
In an embodiment of the present application, as shown in fig. 1, there is provided a construction machine 100 including:
a bin 101 for storing material;
A hopper 102 for receiving material in a bin;
Pneumatic tendons 103 connected with the bin and the hopper and used for stably conveying materials in the bin to the hopper;
the air source assembly 104 is connected with the pneumatic tendon through a high-frequency valve and a proportional valve and is used for treating the air pressure of air; and
A material metering device 105.
The engineering machinery can be dry powder mortar mixing machinery and the like.
In an embodiment of the present application, the engineering machine further includes:
the arch breaking device is arranged on the storage bin and used for shaking materials in the storage bin down to the hopper; and/or
And the metering air vibrator is connected with the air source assembly and used for shaking off materials in the storage bin to the hopper.
In an embodiment of the present application, the method further includes:
the pneumatic vibrator is arranged on the hopper and is used for shaking off materials in the hopper;
And the pneumatic butterfly valve is arranged on the hopper and is used for executing blanking operation on materials in the hopper.
In an embodiment of the present application, the method further includes:
The bin cover detection switch is arranged on the bin and used for detecting the opening and closing states of the bin cover of the bin;
The material detection switch is arranged on the feed bin and is used for judging whether the material level of the material in the feed bin is larger than a preset value, wherein the preset value can be the minimum value of the material level of the material in the feed bin.
In one embodiment, there is provided a material metering device comprising:
a memory configured to store instructions; and
A processor configured to invoke instructions from the memory and to enable the material metering method when executing the instructions.
Fig. 2 schematically shows a flow diagram of a material metering method according to an embodiment of the application. As shown in fig. 2, in an embodiment of the present application, a material metering method is provided and applied to the above-mentioned engineering machinery, where the engineering machinery includes a bin, a hopper, a pneumatic tendon, and an air source assembly, the bin and the hopper are connected by the pneumatic tendon, and the pneumatic tendon is connected with the air source assembly by a high-frequency valve and a proportional valve, and includes the following steps:
step 201: a metering process is initiated, the metering process including a plurality of metering phases.
When metering the material, a metering process may be initiated. Wherein the metering process comprises a plurality of metering phases. Wherein, the materials can refer to trace materials, and can comprise dry-mixed mortar additives or pigments and the like. The metering stage can be set according to actual material metering requirements.
In the embodiment of the application, the engineering machinery further comprises an arch breaking device and/or a metering air vibrator, wherein the arch breaking device is arranged on the storage bin, the metering air vibrator is connected with the air source assembly, and the method further comprises: after the metering process is started, controlling an arch breaking device and/or a metering air vibrator to start running so as to shake materials in the storage bin; controlling the arch breaking device to stop running under the condition that the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device; and/or under the condition that the real-time weight of the materials in the hopper reaches the gas vibration stopping value of the metering gas vibration, controlling the metering gas vibration to stop running; wherein the arch breaking stop value and the air vibration stop value are determined according to the target total weight of the materials in the hopper in the metering process.
The engineering machinery further comprises an arch breaking device and/or a measuring air vibrator, wherein the arch breaking device is arranged on the storage bin, and the measuring air vibrator is connected with the air source assembly. If the material is a dry-mixed mortar additive or pigment, the material may be blocked in the bin and difficult to flow into the hopper, therefore, after the metering process is started, the processor can control the arch breaking device and/or the metering air vibration to start operation so as to shake the material in the bin, so that the material is smoothly discharged.
Under the condition that the processor controls the arch breaking device to start to operate, if the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device, the processor can control the arch breaking device to stop operating. Under the condition that the processor controls the metering air vibration to start running, if the real-time weight of the materials in the hopper reaches the air vibration stopping value of the metering air vibration, the processor can control the metering air vibration to stop running. Wherein the arch breaking stop value and the air vibration stop value can be determined according to the target total weight of the materials in the hopper in the metering process. For example, the arch breaking stop value may be set to any one of 0% to 60% of the total weight of the target, and the air vibration stop value may be set to 0% to 70% of the total weight of the target. Any one of the values in (a).
According to the scheme, when the materials are metered, the arch breaking vibration follows each metering stage of the materials metering until the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device and/or the air vibration stop value of the metering air vibration, so that metering errors caused by fluctuation of the material blanking fall are avoided, the metering errors of the materials are greatly reduced, and the materials in each metering stage are metered more stably.
Step 202: and conveying the materials in the bin to the hopper, and acquiring the real-time weight of the materials in the hopper in real time.
The processor can convey the materials in the bin to the hopper and can acquire the real-time weight of the materials in the hopper in real time. Specifically, a weighing sensor is arranged in the hopper and can be used for detecting the weight of materials conveyed into the hopper in the storage bin. After the weighing sensor detects the weight of the material in the hopper, the weight of the material can be sent to the processor in real time, and the processor can acquire the real-time weight of the material in the hopper in real time.
Step 203: and adjusting the valve opening of the proportional valve in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendon.
After the processor acquires the real-time weight of the materials in the hopper, the valve opening of the proportional valve can be adjusted in real time according to the real-time weight and the target flow of the materials in the hopper, so that the air pressure of the air input by the air source assembly can be adjusted, and the vibration amplitude of the pneumatic tendon can be adjusted.
In the embodiment of the application, the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly, and the adjusting of the vibration amplitude of the pneumatic tendon comprises the following steps: determining the real-time flow of the material in the hopper according to the real-time weight and a preset sampling period for the weight of the material in the hopper; based on a preset algorithm, the valve opening of the proportional valve is adjusted in real time according to the flow difference between the real-time flow and the target flow, so that the air pressure of the air input by the air source assembly is adjusted, and the vibration amplitude of the pneumatic tendon is adjusted.
The processor may determine the real-time flow of material in the hopper based on the real-time weight and a preset sampling period for the weight of material in the hopper. Specifically, the processor may perform differential operations according to the real-time weight and a preset sampling period to obtain a real-time flow of the material in the hopper. And then, the processor can determine the flow difference between the real-time flow and the target flow, and can adjust the valve opening of the proportional valve in real time according to the flow difference based on a preset algorithm so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendons. The preset algorithm comprises a PID algorithm, a fuzzy control algorithm and an adaptive control algorithm.
Step 204: based on the current metering stage, the switching frequency of the high-frequency valve is adjusted according to the target flow and the metering speed of the material in the current metering stage so as to adjust the vibration frequency of the pneumatic tendon and stably convey the material in the bin to the hopper.
Based on the current metering stage, the processor can adjust the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage so as to adjust the vibration frequency of the pneumatic tendon and stably convey the material in the bin to the hopper.
In the embodiment of the application, the metering process comprises a rough weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage comprises: under the condition that the current metering stage is a coarse weighing stage, determining that the metering speed of the current metering stage is a preset maximum metering speed; and adjusting the switching frequency of the high-frequency valve according to the target flow and the preset maximum metering speed.
The metering process includes a coarse scale stage. Under the condition that the metering stage at present is a rough weighing stage, the processor can determine that the metering speed of the metering stage at present is a preset maximum metering speed, and can adjust the switching frequency of the high-frequency valve according to the target flow and the preset maximum metering speed.
In the embodiment of the present application, the metering process further includes a fine weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage includes: under the condition that the current metering stage is a precise metering stage, determining that the metering speed of the current metering stage is a preset minimum metering speed; acquiring the target total weight of materials in a hopper in the metering process and the preset drop weight; determining the stage flow of the fine weighing stage according to the target flow, the target total weight and the preset drop weight; and adjusting the switching frequency of the high-frequency valve according to the stage flow and the preset minimum metering speed.
The metering process also includes a fine weighing stage. In the case where the current metering phase is the fine metering phase, the processor may determine that the metering speed of the current metering phase is a preset minimum metering speed. The processor may obtain a target total weight of material in the hopper during the metering process and a preset head weight. Wherein the target total weight of the material during the metering process can be determined based on the desired weight of the material. During the metering process, the material is temporarily stopped when the material is temporarily stopped, and at this time, a certain drop weight may be generated because a certain amount of material is not counted during the descending process. The preset drop weight can be customized according to actual conditions.
The processor may determine a stage flow of the fine stage according to the target flow, the target total weight, and a preset head weight. Specifically, in one embodiment, a ratio between a preset head weight and a target total weight may be determined, and a product between the ratio and the target flow rate may be determined as a stage flow rate of the fine stage. The processor may adjust the switching frequency of the high frequency valve based on the phase flow and a preset minimum metering speed.
Step 205: and under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, determining to finish the metering operation of the material in the current metering stage until the metering operation of a plurality of metering stages included in the metering process is finished.
In the case where the real-time weight of the material in the hopper reaches the target weight of the material in the current metering phase, the processor may determine that the metering operation of the material in the current metering phase is completed until the metering operations of the multiple metering phases included in the metering process are completed.
In the embodiment of the application, the metering process comprises a coarse weighing stage and a fine weighing stage, and under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, the metering operation of the material in the current metering stage is determined to be completed until the metering operation of a plurality of metering stages included in the metering process is completed, wherein the metering operation comprises the following steps: under the condition that the current metering stage is a coarse weighing stage, determining that the target weight of the material in the current metering stage is the difference between the target total weight of the material in the metering process and the preset drop weight; under the condition that the real-time weight of the materials in the hopper reaches the difference value, determining to finish the metering operation of the coarse weighing stage, and entering the fine weighing stage after waiting for a preset time length; under the condition that the current metering stage is a fine weighing stage, determining the target weight of the material in the current metering stage as the target total weight of the material in the metering process; in the event that the real-time weight of material in the hopper reaches the target total weight, determining that the metering operation of the fine weighing stage is completed, and determining that the metering operation of a plurality of metering stages included in the metering process is completed.
The metering process includes a coarse weighing stage and a fine weighing stage. In the case where the current metering phase is a coarse weighing phase, the processor may determine that the target weight of the material in the current metering phase is a difference between the target total weight of the material in the metering process and a preset drop weight. Under the condition that the real-time weight of the materials in the hopper reaches the difference value, the processor can determine that the metering operation of the coarse weighing stage is completed, and enter the fine weighing stage after waiting for a preset time period. The preset duration can be customized according to actual conditions.
In the case where the current metering phase is a fine scale phase, the processor may determine that the target weight of the material at the current metering phase is the target total weight of the material during the metering process. In the event that the real-time weight of material in the hopper reaches the target total weight, the processor may determine that the metering operation of the fine weighing stage is complete and determine that the metering operation of the multiple metering stages included in the metering process is complete.
In the embodiment of the application, the method further comprises the following steps: under the condition that the metering operation of a plurality of metering stages included in the metering process is determined to be completed, judging whether the current weight of the materials in the hopper is in a preset metering error range or not; under the condition that the current weight of the materials in the hopper is in a preset metering error range, determining that the metering result for the materials is qualified in metering; under the condition that the current weight of the materials in the hopper is larger than the upper limit value included in the preset metering error range, determining that the metering result for the materials is metering weighing; and under the condition that the current weight of the materials in the hopper is smaller than the lower limit value included in the preset metering error range, determining that the metering result for the materials is metering undersize.
In the event that a determination is made to complete a metering operation for a plurality of metering phases included in the metering process, the processor may determine whether the current weight of material in the hopper is within a preset metering error range. Wherein the current weight of the material in the hopper refers to the weight of the material in the hopper obtained after the completion of the metering operation of the plurality of metering stages. The preset metering error range can be customized according to actual conditions.
In the case where the current weight of material in the hopper is within a preset metering error range, the processor may determine that the metering result for the material is metering qualified. In an embodiment of the present application, the hopper is provided with a pneumatic vibrator and a pneumatic butterfly valve, and the method further comprises: and under the condition that the metering result for the materials is determined to be qualified in metering, controlling the pneumatic vibrator and the pneumatic butterfly valve to be started so as to execute the discharging operation on the materials in the hopper. And under the condition that the metering result for the materials is determined to be qualified in metering, the processor can control the pneumatic vibrator and the pneumatic butterfly valve to be started so as to execute the discharging operation on the materials in the hopper.
The upper limit value and the lower limit value included in the preset metering error range can be customized according to actual conditions. In the case where the current weight of the material in the hopper is greater than an upper limit value included in the preset metering error range, the processor may determine that the metering result for the material is a metering out-of-balance. That is, the current weight at this time is greater than the sum of the target total weight of the material during the metering process and the preset upper limit value of the metering error. In the case where the current weight of material in the hopper is less than a lower limit value included in the preset metering error range, the processor may determine that the metering result for the material is under-metering. That is, the current weight at this time is smaller than the difference between the target total weight of the material during the metering process and the preset metering error lower limit value.
In the embodiment of the application, the method further comprises the following steps: and under the condition that the metering result for the materials is determined to be metering out-of-balance or metering under-balance, starting an alarm.
The processor may initiate an alarm in the event that the measurement for the material is determined to be either over-or under-measured. For example, the processor may send an alarm signal to the alarm device to issue an alarm prompt when the alarm device receives the alarm signal. Wherein, the alarm device can be an audible and visual alarm.
In the embodiment of the application, the bin comprises a bin cover detection switch and a material detection switch, and the starting of the metering process comprises the following steps: under the condition that the bin cover detection switch detects that the bin cover of the bin is closed and the material detection switch detects that the material level of the material in the bin is greater than a preset value, a metering process is started.
The feed bin includes storehouse lid detection switch and material detection switch. Under the condition that the bin cover detection switch detects that the bin cover of the bin is closed and the material detection switch detects that the material level of the material in the bin is greater than a preset value, the processor can start the metering process. The preset value can be the minimum value of the material level of the materials in the storage bin, and can be specifically set according to actual conditions.
Through the technical scheme, the valve opening of the proportional valve can be adjusted through the real-time weight and the target flow of the materials in the hopper, so that the vibration amplitude of the pneumatic tendon can be adjusted, and meanwhile, the switching frequency of the high-frequency valve can be adjusted through the target flow of the materials in the hopper and the metering speed of the materials in the current metering stage, so that the vibration frequency of the pneumatic tendon can be adjusted, the conveying flow of the materials is more stable, and the material metering is more accurate.
As shown in fig. 3, a schematic flow chart of another material metering method is provided, and the method is applied to the construction machine shown in fig. 4. As shown in fig. 4, a schematic diagram of another work machine is provided.
The engineering machinery comprises an arch breaking device 1, a bin cover induction switch 2, a bin 3, a bin low material level switch 4, a pneumatic tendon 5, a metering air vibrator 6, a pneumatic vibrator 7, a pneumatic butterfly valve 8, a weighing sensor 9, a discharging hopper 10, an air source processing assembly 11, a proportional valve 12 and a high-frequency valve 13.
Wherein, broken hunch device 1 is used for the smooth and easy unloading of material, and the cooperation of measurement gas shakes and uses. The bin cover inductive switch 2 is used for detecting whether the bin door is closed or not. The bin 3 is used for storing materials. The bin low level switch 4 is used to detect whether the material is used up. The pneumatic tendon 5 is used to control the material transport. The metering air vibration 6 is used for smoothly discharging materials and is matched with the arch breaking device. The pneumatic vibrator 7 is used for discharging vibration of the materials after metering. The pneumatic butterfly valve 8 is used for discharging materials after metering. The load cell 9 is used to weigh the weight of the material. The discharge hopper 10 is used for storing metered materials. The air source processing assembly 11 is used for filtering and depressurizing the air source. The proportional valve 12 is used to control the air intake pressure of the pneumatic tendon. The high frequency valve 13 is used to receive PWM (pulse width modulated wave) frequency to control the vibration frequency of the pneumatic tendon.
Before the metering is started, whether the bin cover induction switch 2 is in place or not can be judged, namely the bin cover induction switch 2 is in a closed state. If the bin cover induction switch 2 is in place, whether the bin level 4 is in place or not can be continuously judged, namely whether the bin level reaches the minimum level value of the bin 3 or not is judged. If the bin level reaches a minimum level value for the bin 3, metering may be started.
After the metering is started, for the coarse weighing stage, a weighing feedback value Wt of the weighing sensor 9 in the discharging hopper 10 can be obtained, and the real-time flow Ft is determined through differential operation according to the weighing feedback value Wt and the sampling time t. Then, the difference between the real-time flow Ft and the flow set point F can be determined to obtain the flow deviation e (t). According to the flow deviation e (t), the opening degree of the proportional valve 12 connected between the pneumatic tendon 5 and the air source processing assembly 11 can be adjusted through PID operation, so that the air pressure of the compressed air filtered and decompressed by the air source processing assembly 11 is adjusted, and the vibration amplitude of the starting tendon is automatically adjusted through variable air pressure. At this time, PWM waves can be output according to the flow set value F and the maximum metering speed Vmax at the same time, so as to obtain the switching frequency of the high-frequency valve 13 connected between the pneumatic tendon 5 and the air source processing assembly 11, thereby controlling the high-frequency valve 13 to be opened and closed at the switching frequency output at this time, so as to adjust the vibration frequency of the pneumatic tendon 5, so that the pneumatic tendon 5 vibrates, and the material enters the discharging hopper 10.
If the weighing feedback value Wt reaches the difference between the weighing set value T and the fall set value T1, the material is stopped to be conveyed to the discharging hopper 10, and the end of the metering in the coarse weighing stage can be determined, and the metering of the material is stopped. At this time, the fine weighing stage may be entered after waiting for the steady weighing time Tw, and the fine weighing stage flow value Fj may be determined. Specifically, the ratio between the head setting T1 and the weighing setting T may be determined first, and the product between the ratio and the flow setting F may be determined as the fine stage flow value Fj.
For the fine weighing stage, a weighing feedback value Wt of the weighing sensor 9 in the discharging hopper 10 can be obtained, and the real-time flow Ft is determined through differential operation according to the weighing feedback value Wt and the sampling time t. Then, the difference between the real-time flow Ft and the flow set point F can be determined to obtain the flow deviation e (t). According to the flow deviation e (t), the opening degree of the proportional valve 12 connected between the pneumatic tendon 5 and the air source processing assembly 11 can be adjusted through PID operation, so that the air pressure of the compressed air filtered and decompressed by the air source processing assembly 11 is adjusted, and the vibration amplitude of the starting tendon is automatically adjusted through variable air pressure. At this time, PWM waves can be output according to the precisely-weighted stage flow value Fj and the minimum metering speed Vmin at the same time, so as to obtain the switching frequency of the high-frequency valve 13 connected between the pneumatic tendon 5 and the air source processing assembly 11, thereby controlling the high-frequency valve 13 to be opened and closed at the switching frequency output at this time, so as to adjust the vibration frequency of the pneumatic tendon 5, and the pneumatic tendon 5 vibrates, so that the material enters the discharging hopper 10.
After the start of the metering, both the arch breaking device 1 and the metering air vibrator 6 can be controlled to be opened. In either the rough weighing stage or the fine weighing stage, when the weighing feedback value Wt reaches the arch breaking stop value Wp of the arch breaking device 1, the arch breaking device 1 may be controlled to stop the arch breaking operation. Under the condition that the weighing feedback value Wt reaches the air vibration stopping value Wz of the measuring air vibration 6, the measuring air vibration 6 can be controlled to stop the air vibration. Wherein, broken arch stop value Wp and air vibration stop value Wz are confirmed according to weighing set point T, and broken arch stop value Wp and air vibration stop value Wz are all less than weighing set point T. If the weighing feedback value Wt reaches the weighing set value T, the material is stopped to be conveyed to the discharging hopper 10, and the end of the metering in the fine weighing stage can be determined, and the metering of the material is ended.
Under the condition that the material metering is finished, if the weighing feedback value Wt is between the metering minimum error value Wmin and the metering maximum error value Wmax, the metering is qualified. And if the weighing feedback value Wt is smaller than the minimum metering minimum error value Wmin, reporting metering undershoot and alarming. And if the weighing feedback value Wt is greater than the minimum metering maximum error value Wmax, reporting the metering weighing error.
According to the technical scheme, based on constant flow closed-loop control, the air pressure of the high-frequency valve is automatically adjusted through the PID, so that the vibration amplitude of the pneumatic tendon is controlled, on the other hand, the switching frequency of the high-frequency valve is controlled through PWM, so that the vibration frequency of the pneumatic tendon is controlled, and the pneumatic tendon and the high-frequency valve are combined to realize stable control of flow. PID closed-loop control is adopted in both the coarse weighing stage and the fine weighing stage, and arch breaking vibration automatically follows the metering process, so that the flow in the coarse weighing stage and the fine weighing stage is always kept stable in metering, metering errors caused by fall fluctuation are fundamentally solved, and the metering errors are greatly reduced. Compared with a metering screw, the compressed air is more energy-saving and environment-friendly, and good metering accuracy can well ensure the production quality of products, so that economic losses caused by metering reasons are avoided.
Fig. 2 and 3 are schematic flow diagrams of a method of metering materials in one embodiment. It should be understood that, although the steps in the flowcharts of fig. 2 and 3 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2 and 3 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of other steps or sub-steps of other steps.
In one embodiment, a storage medium having a program stored thereon that when executed by a processor implements the material metering method described above is provided.
In one embodiment, a processor is provided for running a program, wherein the program executes the material metering method described above.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 5. The computer device includes a processor a01, a network interface a02, a memory (not shown) and a database (not shown) connected by a system bus. Wherein the processor a01 of the computer device is adapted to provide computing and control capabilities. The memory of the computer device includes internal memory a03 and nonvolatile storage medium a04. The nonvolatile storage medium a04 stores an operating system B01, a computer program B02, and a database (not shown in the figure). The internal memory a03 provides an environment for the operation of the operating system B01 and the computer program B02 in the nonvolatile storage medium a04. The database of the computer device is used for storing data such as real-time weight of materials in the hopper. The network interface a02 of the computer device is used for communication with an external terminal through a network connection. The computer program B02 is executed by the processor a01 to implement a material metering method.
It will be appreciated by those skilled in the art that the structure shown in FIG. 5 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The embodiment of the application provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes the following steps when executing the program: starting a metering process, wherein the metering process comprises a plurality of metering stages; conveying the materials in the bin to a hopper, and acquiring the real-time weight of the materials in the hopper in real time; the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendon; based on the current metering stage, the switching frequency of the high-frequency valve is adjusted according to the target flow and the metering speed of the material in the current metering stage so as to adjust the vibration frequency of the pneumatic tendon and stably convey the material in the bin to the hopper; and under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, determining to finish the metering operation of the material in the current metering stage until the metering operation of a plurality of metering stages included in the metering process is finished.
In the embodiment of the application, the metering process comprises a rough weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage comprises: under the condition that the current metering stage is a coarse weighing stage, determining that the metering speed of the current metering stage is a preset maximum metering speed; and adjusting the switching frequency of the high-frequency valve according to the target flow and the preset maximum metering speed.
In the embodiment of the present application, the metering process further includes a fine weighing stage, and based on the current metering stage, adjusting the switching frequency of the high-frequency valve according to the target flow and the metering speed of the material in the current metering stage includes: under the condition that the current metering stage is a precise metering stage, determining that the metering speed of the current metering stage is a preset minimum metering speed; acquiring the target total weight of materials in a hopper in the metering process and the preset drop weight; determining the stage flow of the fine weighing stage according to the target flow, the target total weight and the preset drop weight; and adjusting the switching frequency of the high-frequency valve according to the stage flow and the preset minimum metering speed.
In the embodiment of the application, the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly, and the adjusting of the vibration amplitude of the pneumatic tendon comprises the following steps: determining the real-time flow of the material in the hopper according to the real-time weight and a preset sampling period for the weight of the material in the hopper; based on a preset algorithm, the valve opening of the proportional valve is adjusted in real time according to the flow difference between the real-time flow and the target flow, so that the air pressure of the air input by the air source assembly is adjusted, and the vibration amplitude of the pneumatic tendon is adjusted.
In the embodiment of the application, the metering process comprises a coarse weighing stage and a fine weighing stage, and under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, the metering operation of the material in the current metering stage is determined to be completed until the metering operation of a plurality of metering stages included in the metering process is completed, wherein the metering operation comprises the following steps: under the condition that the current metering stage is a coarse weighing stage, determining that the target weight of the material in the current metering stage is the difference between the target total weight of the material in the metering process and the preset drop weight; under the condition that the real-time weight of the materials in the hopper reaches the difference value, determining to finish the metering operation of the coarse weighing stage, and entering the fine weighing stage after waiting for a preset time length; under the condition that the current metering stage is a fine weighing stage, determining the target weight of the material in the current metering stage as the target total weight of the material in the metering process; in the event that the real-time weight of material in the hopper reaches the target total weight, determining that the metering operation of the fine weighing stage is completed, and determining that the metering operation of a plurality of metering stages included in the metering process is completed.
In the embodiment of the application, the method further comprises the following steps: under the condition that the metering operation of a plurality of metering stages included in the metering process is determined to be completed, judging whether the current weight of the materials in the hopper is in a preset metering error range or not; under the condition that the current weight of the materials in the hopper is in a preset metering error range, determining that the metering result for the materials is qualified in metering; under the condition that the current weight of the materials in the hopper is larger than the upper limit value included in the preset metering error range, determining that the metering result for the materials is metering weighing; and under the condition that the current weight of the materials in the hopper is smaller than the lower limit value included in the preset metering error range, determining that the metering result for the materials is metering undersize.
In the embodiment of the application, the method further comprises the following steps: and under the condition that the metering result for the materials is determined to be metering out-of-balance or metering under-balance, starting an alarm.
In an embodiment of the present application, the hopper is provided with a pneumatic vibrator and a pneumatic butterfly valve, and the method further comprises: and under the condition that the metering result for the materials is determined to be qualified in metering, controlling the pneumatic vibrator and the pneumatic butterfly valve to be started so as to execute the discharging operation on the materials in the hopper.
In the embodiment of the application, the engineering machinery further comprises an arch breaking device and/or a metering air vibrator, wherein the arch breaking device is arranged on the storage bin, the metering air vibrator is connected with the air source assembly, and the method further comprises: after the metering process is started, controlling an arch breaking device and/or a metering air vibrator to start running so as to shake materials in the storage bin; controlling the arch breaking device to stop running under the condition that the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device; and/or under the condition that the real-time weight of the materials in the hopper reaches the gas vibration stopping value of the metering gas vibration, controlling the metering gas vibration to stop running; wherein the arch breaking stop value and the air vibration stop value are determined according to the target total weight of the materials in the hopper in the metering process.
The application also provides a computer program product adapted to perform a program initialized with the steps of the above-mentioned material metering method when executed on a data processing device.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (14)
1. The utility model provides a material metering method, its characterized in that is applied to engineering machine tool, engineering machine tool includes feed bin, hopper, pneumatic tendon and air supply subassembly, the feed bin with the hopper is passed through pneumatic tendon is connected, pneumatic tendon with pass through high frequency valve and proportional valve connection between the air supply subassembly, the method includes:
initiating a metering process, the metering process comprising a plurality of metering phases;
Conveying the materials in the bin to the hopper, and acquiring the real-time weight of the materials in the hopper in real time;
the valve opening of the proportional valve is adjusted in real time according to the real-time weight and the target flow of the materials in the hopper so as to adjust the air pressure of the air input by the air source assembly and adjust the vibration amplitude of the pneumatic tendon;
Based on the current metering stage, the switching frequency of the high-frequency valve is adjusted according to the target flow and the metering speed of the material in the current metering stage so as to adjust the vibration frequency of the pneumatic tendon, and the material in the bin is stably conveyed to the hopper;
And under the condition that the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage, determining to finish the metering operation of the material in the current metering stage until the metering operation of a plurality of metering stages included in the metering process is finished.
2. The method of claim 1, wherein the metering process includes a coarse scale phase, and wherein the adjusting the switching frequency of the high frequency valve based on the target flow rate and the metering speed of the material during the current metering phase includes:
under the condition that the current metering stage is the rough weighing stage, determining that the metering speed of the current metering stage is a preset maximum metering speed;
And adjusting the switching frequency of the high-frequency valve according to the target flow and the preset maximum metering speed.
3. The method of claim 2, wherein the metering process further comprises a fine scale stage, and wherein adjusting the switching frequency of the high frequency valve based on the target flow rate and the metering speed of the material during the current metering stage comprises:
Under the condition that the current metering stage is the fine weighing stage, determining that the metering speed of the current metering stage is a preset minimum metering speed;
Acquiring the target total weight of the materials in the hopper in the metering process and the preset drop weight;
Determining the stage flow of the fine weighing stage according to the target flow, the target total weight and the preset drop weight;
And adjusting the switching frequency of the high-frequency valve according to the stage flow and the preset minimum metering speed.
4. The method of claim 1, wherein adjusting the valve opening of the proportional valve in real time according to the real-time weight and the target flow rate of the material in the hopper to adjust the air pressure of the air input by the air source assembly to adjust the vibration amplitude of the pneumatic tendon comprises:
Determining the real-time flow of the material in the hopper according to the real-time weight and a preset sampling period for the weight of the material in the hopper;
Based on a preset algorithm, the valve opening of the proportional valve is adjusted in real time according to the flow difference between the real-time flow and the target flow, so that the air pressure of the air input by the air source assembly is adjusted, and the vibration amplitude of the pneumatic tendon is adjusted.
5. The method of claim 1, wherein the metering process includes a coarse weighing stage and a fine weighing stage, and wherein determining that the metering operation of the material in the current metering stage is completed until the metering operation of the plurality of metering stages included in the metering process is completed when the real-time weight of the material in the hopper reaches the target weight of the material in the current metering stage includes:
Under the condition that the current metering stage is the coarse weighing stage, determining that the target weight of the material in the current metering stage is the difference between the target total weight of the material in the metering process and the preset drop weight;
under the condition that the real-time weight of the materials in the hopper reaches the difference value, determining that the metering operation of the coarse weighing stage is completed, and entering the fine weighing stage after waiting for a preset time length;
Under the condition that the current metering stage is the fine weighing stage, determining the target weight of the material in the current metering stage as the target total weight of the material in the metering process;
In the event that the real-time weight of material in the hopper reaches the target total weight, determining that the metering operation of the fine weighing stage is completed, and determining that the metering operation of a plurality of metering stages included in the metering process is completed.
6. The method of claim 1, further comprising:
judging whether the current weight of the material in the hopper is in a preset metering error range or not under the condition that the metering operation of a plurality of metering stages included in the metering process is determined to be completed;
under the condition that the current weight of the materials in the hopper is in a preset metering error range, determining that the metering result for the materials is qualified in metering;
under the condition that the current weight of the materials in the hopper is larger than the upper limit value included in the preset metering error range, determining that the metering result for the materials is metering out-of-balance;
and under the condition that the current weight of the materials in the hopper is smaller than the lower limit value included in the preset metering error range, determining that the metering result for the materials is metering undershoot.
7. The method of metering material of claim 6, further comprising:
and under the condition that the metering result for the materials is determined to be metering out-of-balance or metering under-balance, starting an alarm.
8. The method of metering material of claim 6 wherein the hopper has a pneumatic vibrator and a pneumatic butterfly valve mounted thereon, the method further comprising:
And under the condition that the metering result of the material is determined to be qualified in metering, controlling the pneumatic vibrator and the pneumatic butterfly valve to be started so as to execute the blanking operation on the material in the hopper.
9. The method of claim 1, wherein the work machine further comprises an arch breaking device and/or a metering air vibration, the arch breaking device being mounted on the silo, the metering air vibration being connected to the air source assembly, the method further comprising:
After the metering process is started, controlling the arch breaking device and/or the metering air vibration to start running so as to shake the materials in the bin;
controlling the arch breaking device to stop running under the condition that the real-time weight of the materials in the hopper reaches the arch breaking stop value of the arch breaking device; and/or
Controlling the metering gas vibration to stop running under the condition that the real-time weight of the materials in the hopper reaches the gas vibration stop value of the metering gas vibration;
wherein the arch breaking stop value and the air vibration stop value are determined according to a target total weight of the material in the hopper in the metering process.
10. A material metering device, the device comprising:
a memory configured to store instructions; and
A processor configured to invoke the instructions from the memory and when executing the instructions is capable of implementing the material metering method according to any of claims 1 to 9.
11. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the method of metering material according to any of claims 1 to 9.
12. A construction machine, comprising:
the storage bin is used for storing materials;
A hopper for receiving the material in the bin;
The pneumatic tendon is connected with the bin and the hopper and used for stably conveying materials in the bin to the hopper;
The air source assembly is connected with the pneumatic tendon through a high-frequency valve and a proportional valve and is used for treating air pressure of air; and
The material metering device of claim 10.
13. The work machine of claim 12, further comprising:
the arch breaking device is arranged on the storage bin and used for shaking materials in the storage bin down to the hopper; and/or
And the measuring air vibrator is connected with the air source assembly and is used for shaking off materials in the storage bin to the hopper.
14. The work machine of claim 12, further comprising:
the pneumatic vibrator is arranged on the hopper and used for shaking off materials in the hopper;
and the pneumatic butterfly valve is arranged on the hopper and is used for executing blanking operation on materials in the hopper.
Priority Applications (1)
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| CN202410352953.8A CN118225215A (en) | 2024-03-26 | 2024-03-26 | Material metering method, device, storage medium and engineering machinery |
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| CN202410352953.8A CN118225215A (en) | 2024-03-26 | 2024-03-26 | Material metering method, device, storage medium and engineering machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416161A (en) * | 2022-10-14 | 2022-12-02 | 湖南中联重科新材料科技有限公司 | Spraying device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416161A (en) * | 2022-10-14 | 2022-12-02 | 湖南中联重科新材料科技有限公司 | Spraying device and method |
| CN115416161B (en) * | 2022-10-14 | 2024-09-20 | 中联重科新材料科技有限公司 | Spraying device and method |
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