A patch material level sensing device

Abstract

The utility model provides a kind of patch material level sensing device, including installation base plate, patch type load cell and protective shell cover, the installation base plate is set on powder bin support leg, and the setting quantity of installation base plate is two;The patch type load cell is installed in vertical direction, is set between two installation base plates, and threaded hole is equipped on installation base plate, and patch type load cell is connected with two installation base plates by screw thread;The protective shell cover is used to cover patch type load cell, prevent external force collision, protect patch type load cell.The utility model provides a kind of patch material level sensing device, does not change original powder bin support stress main body structure, and the micro deformation of support leg is sensed by sensor to indirectly measure the weight of bunker, with simple installation procedure, maintenance is convenient, small difficulty, low in cost, no security risk, real-time advantage of strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing station technical field especially relates to a patch material level sensing device. BACKGROUND

[0002] Concrete in the high-speed railway construction process uses nearly 65% of the overall structure engineering, and the cost accounts for 40%, and along with the quantity and scale of railway engineering construction of our country expanding unceasingly, its demand of concrete raw material also increases greatly, and the quality requirement of concrete is also higher and higher, so it needs to continuously improve the raw material inventory information management level of concrete mixing station.

[0003] The concrete mixing station uses traditional artificial rubber hammer to knock the warehouse, ultrasonic detection method, heavy hammer material level method or reference ERP production system to carry out real-time inventory management in the raw material powder warehouse inventory management process. Artificially knock the warehouse, high-altitude operation has safety hazards, too dependent on artificial experience, and poor real-time performance, ultrasonic detection method and heavy hammer material level method need to change the main structure, inconvenient to install in the early stage, difficult to maintain and replace in the later stage, and high cost, ERP production system, the cumulative error of production loss plus the error of weighbridge feeding leads to larger and larger inventory error, which seriously affects production, and even has the risk of warehouse explosion. UTILITARIAN CONTENT

[0004] In view of the deficiency of prior art, the purpose of the utility model is to provide a patch material level sensing device to improve the raw material inventory information management level of concrete mixing station.

[0005] The utility model provides a kind of patch material level sensing device, including installation bottom plate, patch type load cell and protective shell cover, the installation bottom plate is set on powder warehouse support leg, and the setting quantity of installation bottom plate is two;

[0006] The patch type load cell is installed in vertical direction, and is set between two installation bottom plates, screw holes are provided on the installation bottom plate, and the patch type load cell is connected with the two installation bottom plates by screw thread;

[0007] The protective shell cover is used to cover the patch type load cell, prevent external force collision, and protect the patch type load cell.

[0008] In the preferred scheme, the installation bottom plate is fixed on the powder warehouse support leg by welding, and the two installation bottom plates are arranged above and below the powder warehouse support leg respectively.

[0009] In the more preferred scheme, the side of the installation bottom plate close to the powder warehouse support leg is arc-shaped, tightly abuts the powder warehouse support leg through arc-shaped slot, and plays the role of positioning and balanced stress.

[0010] Specific, the protective shell cover and powder bin support leg detachable connection, using the principle of lodestone, no screw fixed, installation, maintenance convenient and fast, protect the patch type weighing sensor from external impact.

[0011] Preferably, the patch type weighing sensor is provided with a data interface for sensing voltage signal output.

[0012] Specific, the data interface is defined as power positive (E+), power negative (E-), signal positive (S+), signal negative (S-).

[0013] Preferably, each powder bin support leg is provided with a patch material level sensing device, which facilitates to improve the measurement accuracy.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) the utility model relates to a patch material level sensing device, which does not change the original powder bin support stress main body structure, senses the micro deformation of the support leg through the sensor, indirectly measures the bin weight, has the advantages of simple installation process, convenient maintenance, low cost, no safety risk, real-time performance, etc.

[0016] (2) the utility model relates to a patch material level sensing device, the sensor is not easy to be damaged, has the characteristics of high sensing data accuracy, reliability and stability, and improves the raw material inventory information management level of the concrete mixing station. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the premise.

[0018] Figure 1 It is the installation schematic view of the patch material level sensing device of the utility model.

[0019] Figure 2 It is the perspective view of the patch type weighing sensor and the installation bottom plate after being connected.

[0020] Figure 3 It is the side view structural schematic view of the patch type weighing sensor and the installation bottom plate after being connected.

[0021] Figure 4 It is the structural schematic view of the first installation bottom plate.

[0022] Figure 5 It is the protective shell cover structural schematic view.

[0023] Figure 6 The welding sequence diagram of the patch material level sensing device.

[0024] In the figure, 1 is a patch material level sensing device, 2 is a powder bin supporting leg, 3 is a powder bin, 4 is a patch load cell, 5 is a first threaded hole, 6 is a first screw, 7 is a first mounting bottom plate, 8 is a second threaded hole, 9 is a second screw, 10 is a second mounting bottom plate, 11 is a data interface, and 12 is a protective shell cover. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0026] Embodiment one

[0027] Please refer to Figures 1-5 A patch material level sensing device, comprising a first mounting bottom plate 7, a second mounting bottom plate 10, a patch load cell 4 and a protective shell cover 12, the first mounting bottom plate 7 and the second mounting bottom plate 10 are arranged on the powder bin supporting leg 2.

[0028] The patch load cell 4 is arranged between the two mounting bottom plates in a vertical direction, and the first mounting bottom plate 7 and the second mounting bottom plate 10 are respectively provided with a first threaded hole 5 and a second threaded hole 8; one end of the patch load cell 4 is connected to the first mounting bottom plate 7 through the first screw 6 and the first threaded hole 5, and the other end is connected to the second mounting bottom plate 10 through the second screw 9 and the second threaded hole 8.

[0029] The protective shell cover 12 is used for covering the patch load cell to prevent external force impact and protect the patch load cell.

[0030] Specifically, the first mounting bottom plate 7 and the second mounting bottom plate 10 are fixed on the powder bin supporting leg 2 by welding, and are arranged on the upper and lower sides of the first mounting bottom plate 7 and the second mounting bottom plate 10.

[0031] Specifically, the side of the mounting bottom plate close to the powder bin supporting leg 2 is arc-shaped, and is tightly attached to the powder bin supporting leg through an arc-shaped groove, thereby playing a role of positioning and balancing stress.

[0032] Specifically, the patch load cell 4 is provided with a data interface 11 for outputting a sensing voltage signal; the data interface is defined as a power positive (E+), a power negative (E-), a signal positive (S+) and a signal negative (S-).

[0033] Specific, protective shell cover 12 and powder bin support leg 2 detachable connection, protective shell cover 12 uses magnetite principle, without screw fixed, installation, maintenance convenient and fast, protect the patch type load cell from external impact.

[0034] Specific, patch type load cell 4 internal structure as far as possible hollow, reduce the deformation stress range, so that the measurement is more accurate.

[0035] Specific, each powder bin support leg 2 is provided with a patch material level sensing device, which facilitates to improve the accuracy of measurement.

[0036] Example two

[0037] Please refer to Figure 6 , when welding the mounting plate, in order to facilitate the positioning of the two mounting plates and prevent the high temperature generated by welding from damaging the patch type load cell, an installation plate with the same size as the patch type load cell is used, the mounting plate and the installation plate are fixed and positioned, then the mounting plate is welded on the powder bin support leg, and after the welding is completely cooled, the installation plate is replaced by the patch type load cell.

[0038] The installation process of the device of the utility model is as follows:

[0039] (1) each powder bin support leg is provided with a patch material level sensing device, and each device is installed at the same height.

[0040] (2) mounting plate welding: before welding, the paint surface of all predetermined mounting positions needs to be removed, and the paint surface of not less than 60mmx 50mm is removed at the predetermined mounting position. The assembled mounting plate and installation plate are placed on the support leg in the vertical direction and are pressed tightly, a point is welded at position 1, the installation plate is guaranteed to be perpendicular to the horizontal plane by using a level or a heavy hammer, the installation plate is pressed tightly, position 8 is welded, then positions 2-6 are welded in turn, the welding points are slightly cooled, the spot welding residue is knocked off, and the key points of the segment welding are not the white space in the middle but that the welding time at a position cannot be too long to cause thermal deformation. Each position is welded in turn, 4-6 welding lines are welded at each position, and the length of each welding line is about 1.8cm. After ensuring complete cooling, the paint surface damaged during the welding and the installation process is evenly sprayed with rust-proof paint to prevent rust.

[0041] (3) sensor installation: the installation plate is removed, and the patch type load cell is installed. When installing, the force is applied alternately, and the force of each time does not exceed 10N·M. The final torque reaches 45-50N·M.

[0042] (4) sensor test: after installation, test the voltage value of each sensor with a multimeter to ensure the quality of the sensor, and observe whether the voltage value increases or decreases in proportion by pressing the sensor to determine the quality of the sensor. After installation, test the voltage value of each sensor with a multimeter, and the voltage value is preferably in the range of -5mV to +5mV. The voltage value of each sensor should not exceed 5mV, and the voltage values of different sensors should be close, preferably not too different.

[0043] The working principle of the utility model is: when the weight inside the stock bin changes, the corresponding supporting leg produces micro deformation due to the change of the bearing weight, the micro deformation of the supporting leg causes the relative position of the installation bottom plate to change, which in turn causes the micro deformation of the patch type weighing sensor, the internal circuit of the sensor converts the micro deformation into an output voltage signal, the output voltage signal is measured and calibrated, and the stock bin weight is indirectly measured after quantization.

[0044] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and modified by those skilled in the art without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A patch inventory sensing device, characterized by, Including installation bottom plate, patch type weighing sensor and protective shell cover, the installation bottom plate is arranged on the powder bin supporting leg, and the number of the installation bottom plate is two; The patch type weighing sensor is installed in the vertical direction and arranged between the two installation bottom plates, the installation bottom plate is provided with a threaded hole, and the patch type weighing sensor is connected with the two installation bottom plates through threads; The protective shell cover is used for covering the patch type weighing sensor.

2. The patch inventory sensing device of claim 1, wherein, The installation bottom plate is fixed on the powder bin supporting leg through welding, and the two installation bottom plates are arranged above and below the powder bin supporting leg respectively.

3. The patch inventory sensing device of claim 1, wherein, The side of the installation bottom plate close to the powder bin supporting leg is arc-shaped.

4. The patch inventory sensing device of claim 1, wherein, The patch type weighing sensor is provided with a data interface for outputting a sensing voltage signal.

5. The patch inventory sensing device of claim 1, wherein, Each powder bin supporting leg is provided with a patch type material level sensing device.

6. The patch inventory sensor apparatus of claim 1, wherein, The protective shell cover is detachably connected with the powder bin supporting leg.

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