A balanced weighing device

Abstract

The present invention provides a balanced weighing device, which can solve the technical problem of poor weighing accuracy of existing multi-sensor weighing devices. A balanced weighing device includes a weighing seat, a weighing sensor and a base. The front and rear ends of the bottom of the weighing seat are supported on the base by a group of weighing sensors, and the number of each group of weighing sensors is 2. The device is characterized in that: the device also includes a pin support, and a pin support is provided between each group of weighing sensors. The upper end of the pin support is fixedly connected to the weighing seat, and the lower end is rotatably connected to the base. Since the center of gravity of the object to be weighed is in the middle position of the object to be weighed, when one side of the object to be weighed is stressed, that is, the support point of the ladle and the center of gravity of the object to be weighed do not overlap in the vertical direction, the object to be weighed and the tank seat are deflected to the other side around the center pin under the action of the pin support, so as to achieve balance, ensure that the four sensors are evenly stressed at the same time, and have high detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of weighing devices, and in particular to a balanced weighing device. Background Art

[0002] The weighing device is mainly composed of a weighing seat, a sensor and a base. When the mass of the weighed object is large, two sets of weighing sensors are generally designed between the weighing seat and the base, one set on each side, and two in each set. However, when the placement of the weighed object is deviated or the contact surface between the weighed object and the weighing seat is deviated, the four weighing sensors cannot be evenly stressed at the same time. Sometimes only 3 or even 2 weighing sensors are stressed, resulting in poor weighing accuracy. Summary of the invention

[0003] The invention provides a balanced weighing device, which can solve the technical problem of poor weighing accuracy of existing multi-sensor weighing devices.

[0004] The technical solution is as follows: a balanced weighing device includes a weighing seat, a weighing sensor and a base, wherein the front and rear ends of the bottom of the weighing seat are supported on the base by a group of weighing sensors respectively, and each group of weighing sensors has two members, and is characterized in that: the device also includes a pin bracket, and a pin bracket is provided between each group of weighing sensors, the upper end of the pin bracket is fixedly connected to the weighing seat, and the lower end thereof is rotatably connected to the base through a center pin.

[0005] Furthermore, the balanced weighing device is installed on a transfer device, and the base is the base of the transfer device.

[0006] Furthermore, connecting seats are respectively installed on the left and right sides of the weighing seat, and a vertical limiting mechanism is arranged between each connecting seat and the base.

[0007] Furthermore, the vertical limit mechanism includes an upper limit seat, a lower limit seat and a limit pin, the upper limit seat is installed at the bottom of the connecting seat, the upper limit seat is provided with a limit plate extending downward, the lower limit seat is installed on the base, the lower limit seat is provided with a positioning groove opening upward, the two side walls of the positioning groove are provided with vertically extending waist-shaped holes, the limit plate is inserted into the positioning groove, and the limit pin passes through the limit plate and the waist-shaped holes on the two side walls of the positioning groove.

[0008] When the balanced weighing device of the present invention is weighing, since the center of gravity of the object being weighed is in the middle of the object being weighed, when force is applied to one side of the object being weighed, that is, the supporting point of the ladle and the center of gravity of the object being weighed do not overlap in the vertical direction, the object being weighed and the tank seat deflect to the other side around the center pin under the action of the pin shaft bracket, thereby achieving balance, ensuring that the four sensors are subjected to force evenly at the same time, and having high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the main structure of the balance weighing device of the present invention.

[0010] Figure 2 It is a schematic cross-sectional structure diagram of the vertical limiting mechanism of the present invention. DETAILED DESCRIPTION

[0011] like Figure 1 , Figure 2 As shown, a balanced weighing device includes a weighing seat 1, a weighing sensor 3, a base 2, a pin bracket 4 and a center pin. The front and rear ends of the bottom of the weighing seat 1 are supported on the base 2 by a group of weighing sensors 3 respectively, and the number of each group of weighing sensors 3 is 2. Specifically, the weighing sensor 3 is installed on the base 2, and the sensing end of the weighing sensor is in contact with the bottom of the weighing seat 1. A pin bracket 4 is provided between each two weighing sensors of each group of weighing sensors. The upper end of the pin bracket 4 is fixedly connected to the weighing seat 1, and the lower end thereof is rotatably connected to the base 2 through the center pin 5.

[0012] The balanced weighing device is installed on the transfer device, and the base 2 is the base 2 of the transfer device, which can be used for weighing the molten steel tank.

[0013] The four corners of the weighing seat 1 are respectively installed with connecting seats 7, and a vertical limiting mechanism 6 is arranged between each connecting seat 7 and the base 2, and the vertical limiting mechanism 6 is located on the outside of the weighing sensor 3. The vertical limiting mechanism 6 includes an upper limit seat, a lower limit seat and a limiting pin, the upper limit seat includes an upper base plate 61 and a limiting plate 62, the upper base plate 61 is installed at the bottom of the connecting seat 7, the limiting plate 62 is installed at the lower part of the upper base plate 61 and extends downward, the lower limit seat includes a lower base plate 63 and a positioning plate 64, the lower base plate 63 is installed on the base 2, a pair of positioning plates 64 are installed in parallel on the lower base plate 63 and form a positioning groove 65 with an opening facing upward, the positioning plate 64 is provided with a waist-shaped hole 66 extending vertically, the limiting plate is inserted into the positioning groove, and the limiting pin passes through the waist-shaped holes of the limiting plate 62 and the pair of positioning plates 64. The measuring seat 1 is vertically limited by the cooperation of the limit pin and the waist-shaped hole. On the one hand, it can prevent the weighing seat 1 from being over-pressed during weighing and damaging the weighing sensor 3; on the other hand, it can limit the flipping angle of the weighing seat 1 to ensure that under the action of the center of gravity of the object being weighed, it can be flipped to the other side relative to the initial force side until it is balanced.

Claims

1. A balanced weighing device, comprising a weighing seat, a weighing sensor and a base, wherein the front and rear ends of the bottom of the weighing seat are supported on the base by a group of weighing sensors, each group of weighing sensors has two, characterized in that: The device also includes a pin bracket, and each group of weighing sensors has a pin bracket, the upper end of the pin bracket is fixedly connected to the weighing seat, and the lower end is rotatably connected to the base through a center pin; the balanced weighing device is installed on the transfer device, and the base is the base of the transfer device; connecting seats are respectively installed on the left and right sides of the weighing seat, and a vertical limiting mechanism is arranged between each connecting seat and the base.

2. A balanced weighing device according to claim 1, characterized in that: The vertical limit mechanism includes an upper limit seat, a lower limit seat and a limit pin, the upper limit seat is installed at the bottom of the connecting seat, the upper limit seat is provided with a limit plate extending downward, the lower limit seat is installed on the base, the lower limit seat is provided with a positioning groove opening upward, the two side walls of the positioning groove are provided with waist-shaped holes extending vertically, the limit plate is inserted into the positioning groove, and the limit pin passes through the limit plate and the waist-shaped holes on the two side walls of the positioning groove.

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