High-rigidity and low-unbalance-load weighing pallet and manufacturing method thereof

Abstract

The invention discloses a high-rigidity and low-unbalance-load weighing pallet which comprises a first support platform, a second support platform and a cantilever sensor, and the first support platform and the second support platform are fixedly connected with the cantilever sensor through welding. The first support platform and the second support platform are asymmetrically arranged relative to a center line in the length direction passing through the mass center of the cantilever sensor and symmetrically arranged relative to a center line in the width direction passing through the mass center of the cantilever sensor, and the areas of the first support platform and the second support platform are different. The beneficial effects are that pallets are integrated through welding, and the problem of large measurement errors is fundamentally solved; the mass center of the first support platform and the mass center of the second support platform do not coincide with the mass center of the sensor, so that the problem of unbalance loading and unbalance in actual operation is solved; and the unbalance loading requirements and rigidity requirements of different degrees are met through the design that the loading areas of the first support platform and the second support platform are unequal.

Description

technical field

[0001] The invention relates to the field of weighing measurement, in particular to a weighing pallet with high rigidity and low eccentric load and a manufacturing method thereof. Background technique

[0002] Commonly used weighing principles in the field of physical weighing measurement include: 1) balance method, which uses weights and other balance weights to achieve moment balance conversion; 2) elastic deformation method, which uses a specific relationship between solid deformation and force conversion; 3) fluid Balance method, using liquid pressure or its own mass to achieve balance conversion; and 4) Electromagnetic balance method, through balance conversion by the relationship of magnetic, electromagnetic or electrostatic effects. Among them, weighing instruments using the elastic deformation method are widely used in the national economy because of their advantages such as simple structure, convenient operation, high reliability, and high precision....

Examples

Embodiment 2

[0046] Embodiment 2. The difference between this embodiment and Embodiment 1 is that the first tray 12 and the second tray 22 are both circular.

Embodiment 3

[0047] Embodiment 3. The difference between this embodiment and Embodiment 1 is that the first tray 12 is rectangular, and the second tray 22 is circular.

[0048] Working principle: For a support platform with a rectangular plane, its center of mass is the center of the diagonal of the rectangle. At present, a large number of cantilever beam sensor weighing devices adopt the arrangement where the center of mass of the platform coincides with the center of mass of the sensor in the vertical direction. It is unreasonable, because when the center of mass coincides with the arrangement, the force on both sides of the symmetry will have different moment effects on the center of mass. For example, one side will be easier to settle than the other side, which will cause the side to easily reach the range limit under eccentric load. . Therefore, the present invention adopts a more reasonable layout, so that the centroid of the first support platform falls between the first contact par...

technical field

[0001] The invention relates to the field of weighing measurement, in particular to a weighing pallet with high rigidity and low eccentric load and a manufacturing method thereof. Background technique

[0002] Commonly used weighing principles in the field of physical weighing measurement include: 1) balance method, which uses weights and other balance weights to achieve moment balance conversion; 2) elastic deformation method, which uses a specific relationship between solid deformation and force conversion; 3) fluid Balance method, using liquid pressure or its own mass to achieve balance conversion; and 4) Electromagnetic balance method, through balance conversion by the relationship of magnetic, electromagnetic or electrostatic effects. Among them, weighing instruments using the elastic deformation method are widely used in the national economy because of their advantages such as simple structure, convenient operation, high reliability, and high precision....

Examples

Embodiment 2

[0046] Embodiment 2. The difference between this embodiment and Embodiment 1 is that the first tray 12 and the second tray 22 are both circular.

Embodiment 3

[0047] Embodiment 3. The difference between this embodiment and Embodiment 1 is that the first tray 12 is rectangular, and the second tray 22 is circular.

[0048] Working principle: For a support platform with a rectangular plane, its center of mass is the center of the diagonal of the rectangle. At present, a large number of cantilever beam sensor weighing devices adopt the arrangement where the center of mass of the platform coincides with the center of mass of the sensor in the vertical direction. It is unreasonable, because when the center of mass coincides with the arrangement, the force on both sides of the symmetry will have different moment effects on the center of mass. For example, one side will be easier to settle than the other side, which will cause the side to easily reach the range limit under eccentric load. . Therefore, the present invention adopts a more reasonable layout, so that the centroid of the first support platform falls between the first contact par...

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