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CN-224202553-U - Weighing checking device

CN224202553UCN 224202553 UCN224202553 UCN 224202553UCN-224202553-U

Abstract

The utility model relates to a weighing checking device, and belongs to the field of material conveying or metering. The weighing hopper and the weighing device are arranged on an upper-level belt conveyor or a lower-level belt conveyor, three weighing sensors are arranged on the weighing hopper, the geometric centers formed by the three weighing sensors coincide with the gravity centers formed by the weighing hopper and the materials in the vertical direction, before weighing, weighing weights are placed on the weighing hopper, checking is conducted through the weighing weight symmetrical weighing sensors, and the weighing sensors are compared with the weight of the materials sensed by the weighing devices so as to check the weighing devices. The utility model ensures that the hopper on the belt conveyor not only can meet the transfer function of materials, but also has the weighing function of materials, can check the weighing accuracy of the meter under the condition of ensuring the weighing accuracy of the weighing hopper, provides a basis for the correction of the meter, has simple integral arrangement, reasonable design of the checking method and the weighing device, low cost, less time consumption and high checking accuracy, and has stronger practical value.

Inventors

  • ZHOU JUN
  • LIU JIANYE
  • FENG MIN

Assignees

  • 中冶赛迪工程技术股份有限公司

Dates

Publication Date
20260505
Application Date
20250507

Claims (10)

  1. 1. The weighing checking device is characterized by comprising a weighing funnel (2), wherein a weighing sensor (27) is arranged on the periphery of the weighing funnel (2), a weighing weight (24) with known weight is arranged on the weighing sensor (27) and used for checking the weighing sensor (27), and the weighing sensor (27) senses the weight of a material (6) in the weighing funnel (2).
  2. 2. The weighing and checking device according to claim 1, characterized in that the weighing cells (27) are provided with three along the periphery of the weighing hopper (2).
  3. 3. The weighing and checking device according to claim 2, characterized in that the geometric center (29) formed by the three weighing sensors (27) coincides with the center of gravity (7) formed by the weighing hopper (2) and the material (6) in the vertical direction.
  4. 4. The weighing and checking device according to claim 1, wherein the weighing hopper (2) comprises an upper hopper (21), a middle hopper (22) and a lower hopper (23) which are sequentially connected, and the weighing sensor (27) and the weighing weight (24) are all arranged on the periphery of the middle hopper (22).
  5. 5. The weighing and checking device according to claim 4, wherein the upper funnel (21) and the middle funnel (22) are connected by adopting a flange (25), and a switch gate valve (28) is arranged between the middle funnel (22) and the lower funnel (23).
  6. 6. The weighing and checking device according to claim 4, wherein a supporting plate (26) is arranged on the periphery of the middle funnel (22), the supporting plate (26) is placed on the weighing sensor (27), and the weighing weight (24) is placed on the supporting plate (26).
  7. 7. The weighing and checking device according to claim 1, wherein the weighing hopper (2) is arranged at the rear end of the upper-stage belt conveyor (3) or the lower-stage belt conveyor (4) along the conveying direction.
  8. 8. The weighing and checking device according to claim 7, further comprising a gauge (1) arranged on the upper belt conveyor (3) or the lower belt conveyor (4) for sensing the weight of the material (6) on the belt conveyor.
  9. 9. The weighing and checking device according to claim 8, wherein the weighing hopper (2) and the gauge (1) are respectively arranged on the upper-stage belt conveyor (3) or the lower-stage belt conveyor (4), and the weights of the materials (6) sensed by the weighing sensor (27) and the gauge (1) are compared to realize checking of the gauge (1).
  10. 10. The weighing and checking device according to claim 8, wherein the weighing hopper (2) and the counter (1) are arranged on the upper-stage belt conveyor (3) or the lower-stage belt conveyor (4) at the same time, and the weight of the material (6) sensed by the weighing sensor (27) and the counter (1) is compared, so that the counter (1) is checked.

Description

Weighing checking device Technical Field The utility model belongs to the field of material conveying or metering, and relates to a weighing checking device. Background In the great development tide of the current society, the meter is widely applied to various industries and becomes a key tool for guaranteeing the accuracy and fairness of links such as production, trade and the like. From raw material proportion in industrial production to commodity weighing in commercial trade, the counter plays an indispensable role. The importance of the meter is self-evident for the bulk material conveying industry. In the industry, the use cost of accurately metering materials and the batching precision of accurately controlling the materials are directly related to the production benefit and the product quality of enterprises. To achieve this, it is common to install a meter on the belt conveyor to meter the bulk material in real time. Imagine that on a busy bulk material conveying production line, bulk materials such as continuous coal, ore and the like are rapidly conveyed through a belt conveyor, and a meter accurately records the weight of the materials passing through at each moment, so that key data support is provided for enterprises. However, the meter is not a one-time-to-one accurate device. The weighing error of the meter occurs after a period of use due to the influence of various factors. These factors threaten the accuracy of the metering at all times. The signal processing errors may cause data transmission and calculation to deviate, the weighing force errors may be caused by instability or aging of the sensor, the speed measurement errors may affect accurate measurement of the material conveying speed, the calibration errors may be generated in the initial calibration process, and in addition, environmental factor errors such as changes of temperature, humidity, vibration and the like may also interfere with the performance of the meter. Therefore, checking and calibrating the meter at regular intervals becomes a necessary measure for ensuring the accuracy of the meter. At present, the existing meter checking mode mainly comprises hanging code checking, chain code checking, off-line real object checking and on-line real object checking. Hanging code checking and chain code checking are more traditional checking modes. They are relatively simple to operate and low cost, but have significant limitations. Neither the hanging code nor the chain code can fully reproduce the characteristic properties of the material as it passes through the meter. In the conveying process of materials, the distribution state, the flow characteristic and the like of the materials are greatly different from those of hanging codes or chain codes, so that the checking precision is low, and the requirement of high-precision metering is difficult to meet. The traditional offline physical checking mode can simulate the state of materials more truly, but the operation steps are very complicated and the time consumption is long. The counter is detached from the production line, checked by using standard weights or other objects, and reinstalled after the checking is completed. This process not only consumes a lot of manpower and time, but also affects the normal running of production. The online material object checking mode can check the counter in real time, so that the problem of production interruption caused by offline checking is avoided. However, this approach has obvious drawbacks in that the system is complex, and requires special checking equipment and control procedures, resulting in high cost, which may be difficult for some small enterprises. Therefore, a novel weighing checking method and device are needed to solve the above technical problems. Disclosure of utility model Therefore, the utility model aims to provide the weighing and checking device, so that the funnel on the belt conveyor can not only meet the transfer function of materials, but also have the weighing function of materials, and the weighing accuracy of the meter can be checked under the condition of ensuring the weighing accuracy of the weighing funnel, and the basis is provided for the correction of the meter. In order to achieve the above purpose, the present utility model provides the following technical solutions: The weighing checking device comprises a weighing funnel, wherein a weighing sensor is arranged on the periphery of the weighing funnel, a weighing weight with known weight is placed on the weighing sensor and used for checking the weighing sensor, and the weighing sensor senses the weight of materials in the weighing funnel. Optionally, the weighing sensor is provided with three along weighing hopper periphery. Optionally, the geometric centers formed by the three weighing sensors are coincident with the gravity centers formed by the weighing hopper and the materials in the vertical direction. Optionally, the weighing funnel comprises a