Floating weighing platform device for weighing steel pipe

Abstract

The invention discloses a steel pipe weighing floating weighing platform device. The device comprises two weighing platforms, wherein the two weighing platforms are sequentially arranged in the axial direction of a steel pipe; a lower supporting plate, a weighing sensor and an upper supporting plate of the weighing platform are sequentially arranged from bottom to top; the weighing sensor is a full-floating weighing sensor; each weighing platform is provided with four weighing sensors, and the four weighing sensors are arranged in a rectangular shape. The beneficial effects are that the structural design is reasonable, the adopted full-floating weighing sensors are arranged in a rectangular shape to form a double-weighing-platform full-floating form, each weighing platform is connected with a management machine, and the stability, reliability and accuracy of steel pipe weighing are improved; the stress state of the sensor is improved, and the service life of the sensor is prolonged.

Description

Technical Field

[0001] The present invention relates to a steel pipe weighing device, in particular to a floating weighing platform device for steel pipes, belonging to the technical field of steel pipe manufacturing. Background Art

[0002] The weight of a steel pipe is an important indicator of the quality of the steel pipe. Through the weight of the steel pipe, it can be reflected whether the wall thickness and pipe diameter meet the process requirements as a whole. In API SPEC5l and GB / T - 9711 standards, the relationship between the weight range of the steel pipe and the length per meter is also specified. Accurate weighing is a way to ensure quality control; in addition, there are generally two delivery measurement methods in production and delivery projects, length or weight. Therefore, accurate weighing is very necessary for the delivery measurement of steel pipes.

[0003] The existing steel pipe weighing devices adopt a rigid connection form, which is prone to uneven force, affecting both the accuracy of the weighing result and shortening the service life of the sensor; the sensors of the double weighing platforms are connected to a weighing management machine. In the case of uneven placement of the steel pipe, the sensors on both sides of the weighing platforms are also unevenly stressed, which will also affect the accuracy of the weighing result and the life of the sensor. Summary of the Invention

[0004] In order to overcome the above deficiencies of the existing steel pipe weighing devices, the present invention provides a floating weighing platform device for steel pipes.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a floating weighing platform device for steel pipes, including weighing platforms, and 2 weighing platforms are arranged in sequence along the axial direction of the steel pipe; the lower support plate, weighing sensor, and upper support plate of the weighing platform are arranged in sequence from bottom to top; the weighing sensor is a fully floating weighing sensor.

[0006] Each weighing platform is provided with 4 weighing sensors, and the 4 weighing sensors are arranged in a rectangle.

[0007] The floating surface of the weighing sensor is horizontally arranged.

[0008] An anti - overturning pull rod is arranged on the weighing sensor near the lateral outside.

[0009] Each weighing platform is provided with 1 management machine, and the 4 weighing sensors of each weighing platform are connected to 1 management machine to display the weighing result; the weighing results displayed by the management machines of the 2 weighing platforms are added up to obtain the weight of the weighed steel pipe.

[0010] Furthermore, the 4 weighing sensors of each weighing platform are connected to the management machine through a junction box.

[0011] The lower support plate of the weighing platform is fixedly connected to the frame.

[0012] Further, the number of the upper supporting plates is two, and the two upper supporting plates are symmetrically arranged in an inclined manner facing each other on both sides of the weighing platform.

[0013] The beneficial effects of the present invention are as follows: the structure is reasonably designed. The fully floating weighing sensors are arranged in a rectangular shape, forming a fully floating form of a double weighing platform. Each weighing platform is connected to a management machine, which improves the stability, reliability, and accuracy of steel pipe weighing; improves the stress state of the sensors and extends the service life of the sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the steel pipe weighing floating platform device of the present invention.

[0015] Figure 2 is a side view of the weighing platform in the present invention.

[0016] Figure 3 is a schematic structural diagram of the weighing sensor in the present invention.

[0017] Figure 4 is a system diagram of the steel pipe weighing floating platform of the present invention.

[0018] In the figure: 1. upper supporting plate, 2. weighing sensor, 3. lower supporting plate, 4. steel pipe, 5. anti-overturning tie rod, 6. frame, 7. management machine, 8. junction box, 9. floating surface, 10. weighing platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments. However, those skilled in the art should be aware that the present invention is not limited to the specific embodiments listed. As long as it conforms to the spirit of the present invention, it should be included within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "left", "right", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing or simplifying the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0021] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, a direct connection, an indirect connection, or an integral connection; it can be a mechanical connection, indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See the appendix Figure 1 、 2 For a steel pipe weighing floating weighing platform device of the present invention, it includes a weighing platform 10, and two weighing platforms 10 are arranged in sequence along the axial direction of the steel pipe 4; the lower support plate 3, the weighing sensor 2, and the upper support plate 1 of the weighing platform 10 are arranged from bottom to top in sequence.

[0023] The weighing sensor 2 is a fully floating weighing sensor. Further, a spherical floating structure is arranged inside the weighing sensor 2 so that the upper and lower parts can move relative to each other. After the steel pipe 4 is placed on the weighing platform, it will automatically adjust the force on the weighing sensor to ensure the force balance of the weighing sensor.

[0024] Each weighing platform 10 is provided with 4 weighing sensors 2, and the 4 weighing sensors 2 are arranged in a rectangle.

[0025] The floating surface 9 of the weighing sensor 2 is horizontally arranged (as Figure 3 shown). The upper and lower parts of the weighing sensor 2 can move relative to each other in the middle, and a floating force transmission method is adopted. When loaded, the upper and lower parts of the weighing sensor 2 can automatically adjust according to the force direction and automatically reset after the load disappears.

[0026] Further, an anti-overturning pull rod 5 is arranged near the lateral outside of the weighing sensor 2 to ensure good overall performance of the weighing sensor, good resetability of the weighing device, high overall machine accuracy, and good long-term stability. Preferably, the anti-overturning pull rod 5 includes a screw rod and a nut. The lower end of the screw rod is fixedly connected to the lower support plate, and the nut at the upper end of the screw rod is adjusted to control the gap between the upper end of the nut and the upper support plate to ensure that the weighing sensor 2 can work normally. When the weighing platform device is working normally, the height of the anti-overturning pull rod 5 is adjusted to be slightly lower than the bottom of the upper support plate. Once the upper support plate tilts outward, the anti-overturning pull rod 5 can play a supporting role to make the weighing platform return to the normal state as soon as possible and prevent the weighing platform from overturning.

[0027] See the appendix Figure 4 Each of the weighing platforms 10 is provided with 1 management machine 7. The 4 weighing sensors 2 of each weighing platform 10 are connected to 1 management machine 7 to display the weighing result, and the weighing results displayed by the management machines 7 of the two weighing platforms 10 are added to obtain the weight of the steel pipe 4 being weighed.

[0028] Further, the two management machines 7 transmit the obtained weighing data to the control system, and the control system acquires and records the steel pipe weight data.

[0029] Further, the 4 weighing sensors 2 of each weighing platform 10 are connected to a junction box 8 through a signal cable and then connected to the management machine 7 through a cable.

[0030] The lower support plate 3 of the weighing platform 10 is fixedly connected to the frame 6.

[0031] The number of upper support plates 1 of the weighing platform 10 is 2. The 2 upper support plates 1 are symmetrically arranged in an inclined manner facing each other on both sides of the weighing platform 10, forming a concave shape in the middle, ensuring that the steel pipe 4 is stable and does not roll after falling onto the 2 upper support plates, avoiding the influence of unbalanced placement of the steel pipe on weighing, and being beneficial to improving the accuracy and precision of the weighing result.

[0032] For the steel pipe weighing floating weighing platform device of the present invention, the weighing sensors adopt a floating structure and can automatically adjust to keep the force on each sensor balanced after the steel pipe is placed on the weighing platform; the two weighing platforms are respectively arranged at both ends of the steel pipe, and each weighing platform is independently connected to a weighing management machine. By adding the weighing data of the two management machines, the weight of the steel pipe can be obtained.

[0033] It should be noted that the above embodiments are examples rather than limiting the present invention, and those skilled in the art will be able to design many alternative embodiments without departing from the scope of the claims of this patent.

Claims

1. A floating weighing platform device for steel pipes, comprising a weighing platform, characterized in that: There are 2 weighing platforms arranged in sequence along the axial direction of the steel pipe; the lower supporting plate, weighing sensor, and upper supporting plate of the weighing platform are arranged from bottom to top in sequence; the weighing sensor is a fully floating weighing sensor.

2. The steel pipe weighing floating weighing platform device according to claim 1, characterized in that: Each weighing platform is provided with 4 weighing sensors, and the 4 weighing sensors are arranged in a rectangle.

3. The steel pipe weighing floating weighing platform device according to claim 2, characterized in that: The floating surface of the weighing sensor is horizontally arranged.

4. The steel pipe weighing floating weighing platform device according to claim 3, characterized in that: An anti-overturning pull rod is arranged near the lateral outside of the weighing sensor.

5. The steel pipe weighing floating weighing platform device according to claim 2, characterized in that: One management machine is provided for each weighing platform, and the 4 weighing sensors of each weighing platform are connected to one management machine to display the weighing result; the weighing results displayed by the management machines of the 2 weighing platforms are added together to obtain the weight of the steel pipe being weighed.

6. The steel pipe weighing floating weighing platform device according to claim 5, characterized in that: The 4 weighing sensors of each weighing platform are connected to the management machine through a junction box.

7. The steel pipe weighing floating weighing platform device according to claim 1, wherein: The lower supporting plate of the weighing platform is fixedly connected to the frame.

8. The steel pipe weighing floating weighing platform device according to claim 1, characterized in that: The number of the upper supporting plates is 2, and the 2 upper supporting plates are symmetrically arranged on both sides of the weighing platform in an inclined and opposite manner.

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