Special value comparison device for coal tower scale calibration device

Abstract

The utility model discloses a special value comparison device for a calibration device of a coal tower scale. The special value comparison device comprises a comparison bracket, a pull rod, a standard device and a steel plate, the comparison support is a cube frame formed by welding steel plates, and holes are formed in the four corners of the comparison support and used for installing pull rods. Two counter-force devices are welded on the bottom surface of the comparison bracket, one counter-force device is positioned on the front side of the comparison bracket, the other counter-force device is positioned on the rear side of the comparison bracket, and the counter-force devices are welded into a cube by adopting steel plates and are welded and fixed with the comparison bracket; the upper ends of the four pull rods are sleeved with threads, the lower ends of the pull rods are provided with U-shaped clamping sleeves according to connecting holes of the standard device, the upper ends of the pull rods are in threaded connection with the holes of the comparison support, and the U-shaped clamping sleeves at the lower ends are connected with the standard device; the comparison support is placed on the steel plate, holes are correspondingly formed in the four corners of the steel plate, the holes and holes of the comparison support are located on the same axis, and the holes in the steel plate are used for installing pull rods and standard devices.

Description

Technical Field

[0001] This utility model belongs to the technical field of weighing equipment, specifically relating to a special value comparison device for calibrating coal tower scales. Background Technology

[0002] Coal tower scales are commonly used weighing instruments in steel enterprises to measure the weight of coking coal during coke refining. During use, due to various reasons, deviations in the measurement values ​​can occur, requiring periodic calibration. Currently used standard instruments cannot guarantee the accuracy and stability of the measured values ​​when deviations occur.

[0003] Theoretical Analysis:

[0004] 1. Disadvantages of traditional standard calibration

[0005] When calibrating a coal tower scale, it can only be calibrated using a standard instrument. However, if the standard instrument shows a deviation in measurement value during use, it cannot detect the deviation, which leads to errors in the calibration of the coal tower scale.

[0006] 2. Advantages of the Dedicated Measurement Comparison Device for the Simple Coal Tower Scale Calibration Device

[0007] a. After using the dedicated measurement comparison device for the coal tower scale standard, the standard should be compared regularly to ensure the accuracy of the standard measurement.

[0008] b. Use the compared standard to calibrate the coal tower scale, further improving the accuracy of the coal tower scale's measurement data and meeting the system's operation and management requirements. Utility Model Content

[0009] This utility model provides a dedicated measurement comparison device for calibrating coal tower scales, aiming to calibrate coal tower scales and improve the convenience of operation.

[0010] Therefore, the present invention adopts the following technical solution:

[0011] A dedicated measurement comparison device for calibrating coal tower scales includes a comparison bracket, a tie rod, a standard, and a steel plate;

[0012] The comparison bracket is made of steel plates welded into a cube frame. Holes are made at the four corners of the comparison bracket for installing tie rods. Two reaction devices are welded on the bottom surface of the comparison bracket. One reaction device is located on the front side of the comparison bracket and the other is located on the rear side. The reaction devices are made of steel plates welded into a cube and welded and fixed to the comparison bracket.

[0013] The pull rod consists of 4 rods. The upper end of the pull rod is threaded, and the lower end is made with a U-shaped ferrule according to the connection hole of the standard. The upper end of the pull rod is threaded to the opening of the comparison bracket, and the lower end U-shaped ferrule is connected to the standard.

[0014] The comparison bracket is placed on a steel plate with holes at the four corners of the plate. The holes are on the same axis as the holes on the comparison bracket. The holes on the steel plate are used to install the tie rod and the standard.

[0015] Furthermore, the bracket is 1200mm long, 1300mm wide, and 1300mm high, and is made of 20mm thick steel plate.

[0016] Furthermore, the reaction device is 200mm long, 200mm wide, and 620mm high, and is made of 20mm thick steel plate.

[0017] Furthermore, the tie rod is machined from a single round steel bar.

[0018] Furthermore, the steel plate has the following specifications: 1000mm in length, 1200mm in width, and 20mm in thickness.

[0019] The beneficial effects of this utility model are as follows: Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] In the diagram: 1-Comparison bracket, 2-Tie rod, 3-Standard, 4-Steel plate, 5-Standard force gauge, 6-Reaction device, 7-Jack. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] like Figure 1 As shown, the calibration of the coal tower scales for coke ovens #1 and #2 will be used as an example. A self-made calibration comparison device is used as the implementation object, based on the shape of the coal tower scale standard. The comparison bracket 1 is 1200mm long, 1300mm wide, and 1300mm high, and is made of 20mm thick steel plates welded into a cubic frame connected together. 40mm holes are drilled at the four corners of the comparison bracket 1 for installing the tie rods 2. Two reaction devices 6 are welded to the bottom surface of the comparison bracket 1, one located at the front and one at the rear. The reaction devices 6 are 200mm long, 200mm wide, and 620mm high, and are made of 20mm thick steel plates welded into a cubic frame connected together, and then welded to the comparison bracket 1.

[0024] The pull rod 5 consists of 4 rods. The pull rod 2 is made from a round steel rod with a length of 270mm. One end of the pull rod is threaded, and the other end is made into a U-shaped ferrule according to the connection hole of the standard. The upper end of the pull rod 2 is connected to the comparison bracket 1, and the lower end of the U-shaped ferrule is connected to the standard.

[0025] The steel plate 4 has dimensions of 1000mm in length, 1200mm in width, and 20mm in thickness. Four 40mm holes are drilled at its four corners to align with the axis of the holes in the comparison bracket 1, for mounting the tie rods 2 and the standard device 3. After all tie rods 2 are installed, the base plate of the comparison device is adjusted to the same horizontal line using fixing bolts. After adjustment, the jack 7 and the standard force gauge 5 are installed, thus completing the assembly of a specialized measurement comparison device for calibrating coal tower scales. Comparison tests with the standard device can then be conducted.

[0026] Pressure is applied using a jack 4 and a standard force gauge 5, with the standard connected to a display. The standard displays the weight data applied by the force gauge in real time. By comparing the standard value of the force gauge with the data displayed by the standard, the accuracy of the standard's measurement can be determined.

Claims

1. A dedicated measurement comparison device for calibrating coal tower scales, characterized in that, This includes the comparison bracket, tie rod, standard, and steel plate; The comparison bracket is made of steel plates welded into a cube frame. Holes are made at the four corners of the comparison bracket for installing tie rods. Two reaction devices are welded on the bottom surface of the comparison bracket. One reaction device is located on the front side of the comparison bracket and the other is located on the rear side. The reaction devices are made of steel plates welded into a cube and welded and fixed to the comparison bracket. The pull rod consists of 4 rods. The upper end of the pull rod is threaded, and the lower end is made with a U-shaped ferrule according to the connection hole of the standard. The upper end of the pull rod is threaded to the opening of the comparison bracket, and the lower end U-shaped ferrule is connected to the standard. The comparison bracket is placed on a steel plate with holes at the four corners of the plate. The holes are on the same axis as the holes on the comparison bracket. The holes on the steel plate are used to install the tie rod and the standard.

2. The dedicated measurement comparison device for calibrating coal tower scales according to claim 1, characterized in that, The bracket is 1200mm long, 1300mm wide, and 1300mm high, and is made of 20mm thick steel plate.

3. The dedicated measurement comparison device for calibrating coal tower scales according to claim 1, characterized in that, The reaction device is 200mm long, 200mm wide, and 620mm high, and is made of 20mm thick steel plate.

4. The dedicated measurement comparison device for calibrating coal tower scales according to claim 1, characterized in that, The tie rod is machined from a single round steel bar.

5. The dedicated measurement comparison device for calibrating coal tower scales according to claim 1, characterized in that, The steel plate has the following dimensions: 1000mm in length, 1200mm in width, and 20mm in thickness.

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