Metering scale verification and calibration device

Abstract

The utility model discloses a metering scale verification and calibration device, which relates to the technical field of metering scale verification and comprises a limiting base, a metering scale limiting groove is formed in the upper surface of the limiting base, two supporting frames are fixedly connected to the upper surface of the limiting base, an adjusting mechanism is arranged at the top ends of the supporting frames, and the adjusting mechanism is arranged on the limiting base. The surface of the adjusting mechanism is provided with a moving mechanism, and the lower surface of the moving mechanism is provided with a bearing assembly. By arranging the moving mechanism and the bearing assembly, a balancing weight can be placed in the bearing frame, and the balancing weight is used for driving the first bearing column to move downwards; the bearing frame can be moved to different point positions above the metering scale to simulate various unbalance loading conditions encountered by the metering scale in actual conditions, the operation is simple, manual unbalance loading detection is replaced, and the test accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measurement scale calibration, especially relates to a measurement scale calibration and calibration device. BACKGROUND

[0002] The importance of electronic scale calibration: after measurement and calibration, the measurement accuracy of the electronic scale can be determined to avoid trade disputes and measurement data errors caused by inaccurate weighing.

[0003] During the bias load test, the following aspects are mainly concerned: the bias load test aims to detect whether the load capacity of the measurement scale at different positions is consistent, so as to judge whether there is a bias load error. Bias load test is crucial to ensure the accuracy and reliability of the measurement scale. However, in the existing bias load test process of measurement scale calibration, the test personnel generally manually place the counterweight on the surface of the measurement scale at different positions for detection, which is not only inefficient, but also cannot guarantee the uniformity and accuracy of the load point. Therefore, we designed a measurement scale calibration and calibration device to assist the detection personnel in calibrating and testing the measurement scale. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of measurement scale calibration and calibration device, to realize above-mentioned purpose, the utility model has adopted following technical scheme:

[0005] A kind of measurement scale calibration and calibration device, including limiting base, the upper surface of the limiting base is equipped with measurement scale limiting groove, the upper surface of the limiting base is fixedly connected with two support frames, the top of the support frame is provided with adjusting mechanism, the surface of adjusting mechanism is provided with moving mechanism, the lower surface of moving mechanism is provided with bearing assembly;

[0006] The bearing assembly includes the bearing frame of rectangular frame shape, the inner wall of bearing frame is fixedly connected with partition, the surface of partition and bearing frame is equipped with the limiting circular hole corresponding in position, the inner wall of two limiting circular holes is slidably connected with first bearing column and second bearing column, the top of first bearing column and second bearing column is fixed with counterweight bottom plate, the bottom of first bearing column extends to the lower of bearing frame, and is fixedly connected with bearing pressing plate, the lower surface of counterweight bottom plate is fixed with conical positioning block, the position of conical positioning block corresponds with limiting circular hole;

[0007] The counterweight bottom plate is placed with counterweight on the upper surface, and the upper surface of counterweight bottom plate is fixedly connected with two limit frames, and two limit frames are symmetrically distributed on the two sides of counterweight.

[0008] By setting the counterweight bottom plate, the counterweight bottom plate can be used to limit and support the counterweight block, and the two sides of the counterweight bottom plate are slidably connected with the inner wall of the bearing frame, and the bearing frame can limit and guide the counterweight bottom plate, avoiding rotation of the counterweight bottom plate.

[0009] By setting the first bearing column and the second bearing column, the first bearing column and the second bearing column can be used to move up and down inside the limiting circular hole, thereby causing the counterweight block to generate pressure on the counterweight bottom plate.

[0010] In one preferred scheme, the adjusting mechanism includes a top plate fixed at the top end of the support frame, the upper surface of the top plate is fixedly connected with a strip-shaped frame, the inner wall of the strip-shaped frame is rotatably connected with a first displacement screw rod, and the surface of the first displacement screw rod is threadedly connected with a first horizontal adjusting block.

[0011] In one preferred scheme, the moving mechanism includes a calibration frame, the inner wall of the calibration frame is rotatably connected with a second displacement screw rod, the surface of the second displacement screw rod is threadedly connected with a second horizontal adjusting block, the lower surface of the second horizontal adjusting block is fixedly installed with an electric telescopic rod, and the bearing assembly is fixedly connected at the telescopic end of the electric telescopic rod.

[0012] In one preferred scheme, the bottom end of the first horizontal adjusting block extends below the top plate and is fixedly connected with the upper surface of the calibration frame.

[0013] By setting the limiting frame, the limiting frame can be used to limit the two sides of the counterweight block, improving the stability of the counterweight block inside the bearing frame.

[0014] In one preferred scheme, the right end of the strip-shaped frame is fixedly installed with a first adjusting motor, the output shaft of the first adjusting motor extends to the inside of the strip-shaped frame, and is fixedly connected with the right end of the first displacement screw rod.

[0015] It is worth noting that by setting the first adjusting motor 10, the first adjusting motor can drive the first displacement screw rod to rotate inside the strip-shaped frame, thereby driving the first horizontal adjusting block to move horizontally in the left-right direction, thereby facilitating position adjustment of the bearing frame.

[0016] In one preferred scheme, the rear end of the calibration frame is fixedly installed with a second adjusting motor, the output shaft of the second adjusting motor extends to the inside of the calibration frame, and is fixedly connected with the end of the second displacement screw rod.

[0017] By setting the second adjusting motor, the second adjusting motor can drive the second displacement screw rod to rotate, while driving the bearing frame 9 to move in the front-back and left-right horizontal directions, thereby facilitating quick and accurate adjustment of the bearing point of the metering scale.

[0018] In a preferred embodiment, a strip-shaped guide hole is provided on the lower surface of the top plate, the position of the strip-shaped guide hole corresponds to the strip frame, and both sides of the first horizontal adjustment block are slidably connected to the inner wall of the strip-shaped guide hole.

[0019] By providing a strip-shaped guide hole on the top surface, the first horizontal adjusting block can be guided and limited in the horizontal direction using the strip-shaped guide hole.

[0020] In a preferred embodiment, both sides of the second horizontal adjustment block are slidably connected to the inner wall of the calibration frame.

[0021] As can be seen from the above, the calibration and verification device for weighing scales provided by this utility model has the following technical effects.

[0022] Firstly, by setting up a moving mechanism and a load-bearing component, a counterweight can be placed inside the load-bearing frame, and the counterweight can be used to drive the first load-bearing column to move downward, thereby driving the load-bearing pressure plate downward to perform an off-center load test on the weighing pan of the weighing scale. Furthermore, the load-bearing frame can be moved to different points above the weighing scale to simulate various off-center load situations encountered by the weighing scale in actual situations. The operation is simple and replaces manual off-center load detection, which helps to improve the accuracy of the test.

[0023] Secondly, by setting a first displacement screw and a second displacement screw, the load-bearing frame can be moved horizontally in the front-back and left-right directions, thereby facilitating quick and accurate adjustment of the load-bearing point and achieving the purpose of efficient detection. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of a calibration device for a weighing scale proposed in this utility model.

[0025] Figure 2 This is a side view of the calibration and verification device for a weighing scale proposed in this utility model.

[0026] Figure 3 This is a rear view structural diagram of a weighing scale calibration device proposed in this utility model.

[0027] Figure 4 This is a partial top view of the structure of a calibration device for a weighing scale proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the supporting component structure of a weighing scale calibration device proposed in this utility model.

[0029] Figure 6 This is a partial side sectional view of the calibration frame of a weighing scale calibration device proposed in this utility model.

[0030] In the drawings: 1, limit base; 2, metering scale limiting groove; 3, support frame; 4, top plate; 5, strip-shaped frame; 6, first displacement screw rod; 7, first horizontal adjusting block; 8, moving mechanism; 9, bearing assembly; 10, first adjusting motor; 11, second adjusting motor; 12, strip-shaped guide hole;

[0031] 801, calibration frame; 802, second displacement screw rod; 803, second horizontal adjusting block; 804, electric telescopic rod;

[0032] 901, bearing frame; 902, limiting circular hole; 903, first bearing column; 904, counterweight bottom plate; 905, bearing pressing plate; 906, counterweight block; 907, limiting frame; 908, conical positioning block; 909, partition plate; 910, second bearing column. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0034] Referring to Figure 1 and Figure 2 A metering scale verification and calibration device, comprising a limit base 1, the upper surface of the limit base 1 is provided with a metering scale limiting groove 2, the upper surface of the limit base 1 is fixedly connected with two support frames 3, the top ends of the two support frames 3 are fixedly connected with a top plate 4, the upper surface of the top plate 4 is fixedly connected with a strip-shaped frame 5, the inner wall of the strip-shaped frame 5 is rotatably connected with a first displacement screw rod 6, the surface of the first displacement screw rod 6 is threadedly connected with a first horizontal adjusting block 7, the bottom end of the first horizontal adjusting block 7 extends to the lower side of the top plate 4, and is fixedly connected with a moving mechanism 8.

[0035] It should be noted that the lower surface of the top plate 4 is provided with a strip-shaped guide hole 12, the position of the strip-shaped guide hole 12 corresponds to the strip-shaped frame 5, and the two sides of the first horizontal adjusting block 7 are slidably connected with the inner walls of the strip-shaped guide holes 12.

[0036] It should be noted that the right end of the strip-shaped frame 5 is fixedly installed with a first adjusting motor 10, the output shaft of the first adjusting motor 10 extends to the inside of the strip-shaped frame 5, and is fixedly connected with the right end of the first displacement screw rod 6.

[0037] It is worth noting that by arranging the first displacement screw rod 6 and the first adjusting motor 10, the first displacement screw rod 6 can be driven to rotate in the strip-shaped frame 5 by the first adjusting motor 10, so as to drive the first horizontal adjusting block 7 to move horizontally in the left-right direction.

[0038] Referring to Figure 3 andFigure 4 In a preferred embodiment, the moving mechanism 8 comprises a calibration frame 801, the inner wall of the calibration frame 801 is rotationally connected with a second displacement screw rod 802, the surface of the second displacement screw rod 802 is threadedly connected with a second horizontal adjusting block 803, the two sides of the second horizontal adjusting block 803 are slidingly connected with the inner wall of the calibration frame 801, the lower surface of the second horizontal adjusting block 803 is fixedly installed with an electric telescopic rod 804, and the bearing assembly 9 is fixedly connected at the telescopic end of the electric telescopic rod 804.

[0039] It should be noted that the rear end of the calibration frame 801 is fixedly installed with a second adjusting motor 11, the output shaft of the second adjusting motor 11 extends into the interior of the calibration frame 801 and is fixedly connected with the end of the second displacement screw rod 802.

[0040] By setting the second adjusting motor 11 and the second displacement screw rod 802, the second displacement screw rod 802 can be driven to rotate by the second adjusting motor 11, and the second horizontal adjusting block 803 can be moved inside the calibration frame 801, thereby driving the bearing frame 901 to move in the front-back and left-right horizontal directions, so as to facilitate rapid and accurate adjustment of the bearing point of the metering scale, and achieve the purpose of efficient detection.

[0041] Reference Figure 5 and Figure 6 In a preferred embodiment, the bearing assembly 9 comprises a bearing frame 901 in the shape of a rectangular frame, the inner wall of the bearing frame 901 is fixedly connected with a partition plate 909, the surfaces of the partition plate 909 and the bearing frame 901 are both provided with position-corresponding limiting circular holes 902, the inner walls of the two limiting circular holes 902 are respectively slidingly connected with a first bearing column 903 and a second bearing column 910, the top ends of the first bearing column 903 and the second bearing column 910 are both fixedly provided with a counterweight bottom plate 904, the bottom end of the first bearing column 903 extends below the bearing frame 901 and is fixedly connected with a bearing pressing plate 905.

[0042] The lower surface of the counterweight bottom plate 904 is fixedly provided with a conical positioning block 908, the position of the conical positioning block 908 corresponds to the limiting circular hole 902;

[0043] It should be noted that by setting the conical positioning block 908, the first bearing column 903 or the second bearing column 910 can be kept in the central position by inserting the conical positioning block 908 into the interior of the limiting circular hole 902, so as to avoid the first bearing column 903 or the second bearing column 910 from being deviated or unevenly stressed during the adjustment of the counterweight block 906, and improve the accuracy of the test.

[0044] It needs to be further explained that the upper surface of the counterweight bottom plate 904 is placed with the counterweight block 906, and the upper surface of the counterweight bottom plate 904 is fixedly connected with two limiting racks 907, and the two limiting racks 907 are symmetrically distributed on both sides of the counterweight block 906.

[0045] It is worth mentioning that by setting the moving mechanism 8 and the bearing assembly 9, the counterweight block 906 can be placed inside the bearing frame 901, and the first bearing column 903 can be driven downward by the counterweight block 906, thereby driving the bearing pressing plate 905 to downwardly bias the scale pan of the weighing scale for testing, and the bearing frame 901 can be moved to different positions above the weighing scale to simulate various bias conditions encountered by the weighing scale in actual situations, which is simple to operate and replaces manual bias detection, and is conducive to improving the accuracy of testing.

[0046] Working principle: in use, first, the weighing scale to be calibrated is placed in the weighing scale limiting groove 2 on the surface of the limiting base 1, then the counterweight block 906 is placed on the surface of the counterweight bottom plate 904 in the bearing frame 901, then the bearing frame 901 is moved to the left side above the weighing scale by the first adjusting motor 10, the bearing frame 901 is moved downward by the electric telescopic rod 804, the bearing pressing plate 905 at the bottom of the bearing frame 901 is in contact with and placed on the surface of the scale pan of the weighing scale, the first bearing column 903 is driven by the weight of the counterweight block 906 to generate pressure on the bearing pressing plate 905, so that the bearing pressing plate 905 generates a certain bearing force on the surface of the scale pan, and the counterweight block 906 can also be placed on the surface of the counterweight bottom plate 904 at the top of the second bearing column 910 to increase the overall weight of the bearing assembly 9, then the bearing frame 901 is adjusted in the horizontal direction by the second adjusting motor 11, so as to facilitate the bias test of different positions on the surface of the scale pan.

[0047] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a partial structure, device, method step replacement, or a complete technical solution. According to the technical scheme and the utility model concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A calibration device for a weighing scale, comprising a limiting base (1), characterized in that, The upper surface of the limiting base (1) is provided with a measuring scale limiting groove (2). Two support frames (3) are fixedly connected to the upper surface of the limiting base (1). An adjustment mechanism is provided at the top of the support frame (3). A moving mechanism (8) is provided on the surface of the adjustment mechanism. A bearing component (9) is provided on the lower surface of the moving mechanism (8). The bearing component (9) includes a rectangular frame (901) with a partition (909) fixedly connected to the inner wall of the bearing frame (901). The surfaces of the partition (909) and the bearing frame (901) are provided with corresponding limiting holes (902). The inner walls of the two limiting holes (902) are respectively slidably connected to a first bearing column (903) and a second bearing column (910). The top ends of the first bearing column (903) and the second bearing column (910) are fixed with a counterweight base plate (904). The bottom end of the first bearing column (903) extends to the bottom of the bearing frame (901) and is fixedly connected with a bearing pressure plate (905). The lower surface of the counterweight base plate (904) is fixed with a conical positioning block (908). The position of the conical positioning block (908) corresponds to the limiting hole (902). The upper surface of the counterweight base plate (904) is provided with a counterweight block (906), and two limiting frames (907) are fixedly connected to the upper surface of the counterweight base plate (904). The two limiting frames (907) are symmetrically distributed on both sides of the counterweight block (906).

2. The calibration and verification device for a weighing scale according to claim 1, characterized in that, The adjustment mechanism includes a top plate (4) fixed to the top of the support frame (3), a strip frame (5) fixedly connected to the upper surface of the top plate (4), a first displacement screw (6) rotatably connected to the inner wall of the strip frame (5), and a first horizontal adjustment block (7) threadedly connected to the surface of the first displacement screw (6).

3. The calibration and verification device for a weighing scale according to claim 2, characterized in that, The moving mechanism (8) includes a calibration frame (801), the inner wall of which is rotatably connected to a second displacement screw (802), the surface of which is threadedly connected to a second horizontal adjustment block (803), the lower surface of which is fixedly mounted with an electric telescopic rod (804), and the bearing component (9) is fixedly connected to the telescopic end of the electric telescopic rod (804).

4. The calibration and verification device for a weighing scale according to claim 3, characterized in that, The bottom end of the first horizontal adjustment block (7) extends below the top plate (4) and is fixedly connected to the upper surface of the calibration frame (801).

5. A calibration and verification device for a weighing scale according to claim 2, characterized in that, The right end of the strip frame (5) is fixedly installed with a first adjusting motor (10), the output shaft of the first adjusting motor (10) extends into the interior of the strip frame (5) and is fixedly connected to the right end of the first displacement screw (6).

6. A calibration and verification device for a weighing scale according to claim 3, characterized in that, The rear end of the calibration frame (801) is fixedly mounted with a second adjusting motor (11), the output shaft of the second adjusting motor (11) extends into the interior of the calibration frame (801) and is fixedly connected to the end of the second displacement screw (802).

7. A calibration and verification device for a weighing scale according to claim 2, characterized in that, The lower surface of the top plate (4) is provided with a strip guide hole (12), the position of the strip guide hole (12) corresponds to the strip frame (5), and both sides of the first horizontal adjustment block (7) are slidably connected to the inner wall of the strip guide hole (12).

8. A calibration and verification device for a weighing scale according to claim 3, characterized in that, Both sides of the second horizontal adjustment block (803) are slidably connected to the inner wall of the calibration frame (801).

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