Intelligent material level control device for funnel

Abstract

The utility model discloses an intelligent hopper material level control device, and relates to the technical field of hopper material level control. Comprising strain channel steel, a resistance strain gauge arranged below the strain channel steel and a fixing mechanism used for fixing the resistance strain gauge, a control module is arranged on one side of the resistance strain gauge and comprises a transmitter, a first PLC and a second PLC, and the resistance strain gauge, the transmitter, the first PLC, a touch screen and the second PLC are arranged. The resistance strain gauge sends an analog signal to the transmitter by detecting the deformation amount of the strain channel steel, the signal is output to the second PLC through program operation processing of the transmitter, the second PLC controls the feeder motor, the material storage amount and the feeding flow in the hopper are automatically controlled, the waterproof grade of the strain gauge reaches IP65 so as to cope with a special operation environment, and the safety of the hopper is improved. The transmitter converts a pressure signal of the resistance strain gauge into a 4-20mA current signal, so that analog / digital conversion and isolation of the signal are realized, and the stability and the anti-interference capability of the signal are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of funnel material level control, and in particular relates to an intelligent funnel material level control device. Background Art

[0002] The tipper is one of the most complex and critical equipment in the loading and unloading system. The accuracy of its material level detection directly affects the degree of system automation. At present, the material level detection method of the tipper hopper in the tipper unloading system of coal terminals at home and abroad mainly adopts microwave radar and weighing sensor measurement methods, but they have not achieved good results and widespread use. The tipper hopper operation area has a harsh working environment with large dust, coal impact, water mist, etc. The working conditions are very complicated and the on-site working conditions are very harsh. In the existing equipment, the material level control device is more susceptible to interference, resulting in inaccurate material level control and unstable signals. Utility Model Content

[0003] The utility model aims to provide a hopper intelligent material level control device to solve the technical problem that the material level control device is easily disturbed, resulting in inaccurate material level control and unstable signals.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a funnel intelligent material level control device, comprising a strain channel steel and a resistance strain gauge arranged below the strain channel steel, and a fixing mechanism for fixing the resistance strain gauge, and a control module for improving the stability and anti-interference ability of the signal is provided on one side of the resistance strain gauge;

[0005] The control module includes a transmitter for converting the analog signal sent by the resistance strain gauge into a digital quantity, a first PLC and a second PLC for performing program operation on the digital quantity, and a touch screen for displaying the material level in the strain groove steel also includes an operating computer.

[0006] Preferably, the fixing mechanism comprises a bracket assembly arranged below the strain channel steel via a hinge, and a locking assembly is provided on one side of the bracket assembly.

[0007] Preferably, the bracket assembly includes two U-shaped frames connected below the strain channel steel by a hinge, a connecting rod is arranged between the two U-shaped frames, and locking grooves are respectively opened on one side of the two U-shaped frames.

[0008] Preferably, both ends of the connecting rod are fixedly connected to two U-shaped frames respectively.

[0009] Preferably, the locking assembly includes a fixing plate fixedly connected to the bottom of the strain channel steel, and two grooves are provided on one side of the fixing plate close to the U-shaped frame. Slide rods are provided in the two grooves, and a spring is provided between the slide rods and the grooves.

[0010] Preferably, two ends of the spring are fixedly connected to the slide rod and the inside of the groove respectively.

[0011] The utility model provides a hopper intelligent material level control device with the following advantages:

[0012] 1. This kind of funnel intelligent material level control device, through the setting of resistance strain gauge, transmitter, first PLC, touch screen and second PLC, makes the resistance strain gauge send an analog signal to the transmitter by detecting the deformation of the strain channel steel, and outputs the signal to the second PLC through the program operation processing of the transmitter. The second PLC controls the feeder motor to realize automatic control of the material storage and feeding flow in the funnel. The resistance strain gauge performs signal acquisition. The waterproof grade of the strain gauge reaches IP65 to cope with special working environment. The transmitter converts the pressure signal of the resistance strain gauge into 4-20mA current signal, realizes analog / digital conversion and isolation of the signal, and improves the stability and anti-interference ability of the signal.

[0013] 2. This kind of funnel intelligent material level control device places the resistance strain gauge between the vertical plates on both sides of the U-shaped frame through the setting of the bracket assembly and the locking assembly, and pushes the U-shaped frame upward. When the upper part of the U-shaped frame is completely in contact with the strain groove steel, the spring pushes the slide bar into the lock groove to fix the U-shaped frame, so that the resistance strain gauge is completely fixed under the strain groove steel, and the operation of installing the resistance strain gauge is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the support assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the locking assembly structure of the utility model;

[0019] Figure 5 This is a schematic diagram of a control module of the present utility model;

[0020] Figure 6 This is a schematic diagram of the control module structure of the utility model.

[0021] Explanation of the markings in the figure: 1. Strain gauge; 2. Fixing mechanism; 21. Bracket assembly; 211. U-shaped frame; 212. Locking groove; 213. Connecting rod; 22. Locking assembly; 221. Fixing plate; 222. Groove; 223. Spring; 224. Sliding rod; 3. Resistance strain gauge; 4. Transmitter; 5. First PLC; 6. Touch screen; 7. Second PLC; 8. Operating computer. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a funnel intelligent material level control device of the utility model in conjunction with the accompanying drawings.

[0028] like Figure 1 and Figure 5 and Figure 6 As shown, a funnel intelligent material level control device of the utility model comprises a strain channel steel 1 and a resistance strain gauge 3 arranged under the strain channel steel 1, and a fixing mechanism 2 for fixing the resistance strain gauge 3, and a control module for improving the stability and anti-interference ability of the signal is arranged on one side of the resistance strain gauge 3;

[0029] The control module includes a transmitter 4 for converting the analog signal sent by the resistance strain gauge 3 into a digital quantity, a first PLC 5 and a second PLC 7 for performing program operation on the digital quantity, and a touch screen 6 for displaying the material level in the strain gauge slot 1 and an operating computer 8.

[0030] In this embodiment, the resistance strain gauge 3 performs signal acquisition. The waterproof grade of the strain gauge reaches IP65 to cope with special working environments. The transmitter 4 converts the pressure signal of the resistance strain gauge 3 into a 4-20mA current signal, realizes analog / digital conversion and isolation of the signal, and improves the stability and anti-interference ability of the signal. The resistance strain gauge 3 is coated with adhesive. The resistance strain gauge 3 is placed in the fixing mechanism 2, and the fixing mechanism 2 is pushed upward so that the fixing mechanism 2 fixes the resistance strain gauge 3 under the strain groove steel 1. The adhesive on the resistance strain gauge 3 is in contact with the strain groove. Steel 1 adheres, and the resistance strain gauge 3 sends an analog signal to the transmitter 4 by detecting the deformation of the strain groove steel 1. Through the program operation processing of the transmitter 4, the signal is output to the second PLC7. The second PLC7 controls the feeder motor to realize automatic control of the material storage and feeding flow in the hopper. At the same time, the touch screen 6 can display the bar graph, that is, the coal balance and adjust the zero position. The integrated control of the hopper material level is realized by using the first PLC5, the second PLC7 and the host computer, and the analog output is calculated and controlled by the PLC to the PLC and the host computer of the tipping machine. This improves the stability and integration of the system. At the same time, the touch screen 6 is installed to make the hopper material level display more intuitive, the operation and maintenance more simplified, and the material storage and feeding flow in the hopper are automatically controlled, saving a lot of labor costs.

[0031] like Figure 2 As shown, the fixing mechanism 2 includes a bracket assembly 21 arranged below the strain channel steel 1 through a hinge, and a locking assembly 22 for fixing the bracket assembly 21 is provided on one side of the bracket assembly 21.

[0032] like Figure 3 As shown, the bracket assembly 21 includes two U-shaped frames 211 connected to the bottom of the strain channel steel 1 by a hinge, and the two U-shaped frames 211 are connected together by multiple connecting rods 213. The two U-shaped frames 211 are respectively provided with locking grooves 212 on one side close to the locking assembly 22, and the locking grooves 212 are elliptical grooves.

[0033] In this embodiment, the resistance strain gauge 3 is placed between the vertical plates on both sides of the U-shaped frame 211, and the U-shaped frame 211 is pushed upward. The U-shaped frame 211 is rotated under the strain channel steel 1 through the hinge, so that the upper part of the U-shaped frame 211 is completely in contact with the strain channel steel 1, and the adhesive on the resistance strain gauge 3 adheres to the lower part of the strain channel steel 1.

[0034] like Figure 4As shown, the locking assembly 22 includes a fixing plate 221 fixedly connected to the bottom of the strain channel steel 1, and two grooves 222 are provided on one side of the fixing plate 221 close to the U-shaped frame 211, and a spring 223 is fixedly connected inside the groove 222, and a sliding rod 224 is fixedly connected to the other end of the spring 223, and one end of the sliding rod 224 close to the U-shaped frame 211 is set as an elliptical spherical surface, and the elliptical spherical surface at one end of the sliding rod 224 matches the locking groove 212, and the sliding rod 224 locks the U-shaped frame 211 through the locking groove 212.

[0035] In this embodiment, when the U-shaped frame 211 is pushed, the U-shaped frame 211 squeezes the elliptical spherical surface at one end of the slide rod 224, so that the slide rod 224 slides into the groove 222. When the upper part of the U-shaped frame 211 is completely fitted with the strain channel steel 1, the spring 223 pushes the slide rod 224 to slide out of the groove 222, and the elliptical spherical surface at one end of the slide rod 224 is inserted into the locking groove 212, fixing the U-shaped frame 211, so that the resistance strain gauge 3 is completely fixed under the strain channel steel 1.

[0036] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A hopper intelligent material level control device, comprising a strain channel steel (1), a resistance strain gauge (3) arranged below the strain channel steel (1), and a fixing mechanism (2) for fixing the resistance strain gauge (3), characterized in that: A control module for improving signal stability and anti-interference capability is provided on one side of the resistance strain gauge (3); The control module comprises a transmitter (4) for converting an analog signal emitted by a resistance strain gauge (3) into a digital quantity, a first PLC (5) and a second PLC (7) for performing program operation processing on the digital quantity, a touch screen (6) for displaying the material level in the strain gauge channel (1), and an operating computer (8).

2. The hopper intelligent material level control device according to claim 1, characterized in that: The fixing mechanism (2) comprises a bracket assembly (21) arranged below the strain channel steel (1) via a hinge, and a locking assembly (22) is provided on one side of the bracket assembly (21).

3. A hopper intelligent material level control device according to claim 2, characterized in that: The support assembly (21) comprises two U-shaped frames (211) connected below the strain channel steel (1) via a hinge, a connecting rod (213) is provided between the two U-shaped frames (211), and locking grooves (212) are respectively provided on one side of the two U-shaped frames (211).

4. The intelligent material level control device for a hopper according to claim 3, characterized in that: Both ends of the connecting rod (213) are fixedly connected to the two U-shaped frames (211) respectively.

5. The intelligent material level control device for a hopper according to claim 3, characterized in that: The locking assembly (22) comprises a fixing plate (221) fixedly connected to the bottom of the strain channel steel (1); two grooves (222) are provided on one side of the fixing plate (221) close to the U-shaped frame (211); sliding rods (224) are provided in the two grooves (222); and a spring (223) is provided between the sliding rod (224) and the grooves (222).

6. The hopper intelligent material level control device according to claim 5, characterized in that: Two ends of the spring (223) are respectively fixedly connected to the slide bar (224) and the inside of the groove (222).

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