High-precision weighing system

Abstract

The utility model relates to the technical field of weighing, and provides a high-precision weighing system which comprises a scale body, a scale platform, a high-precision module, a scale body cover plate and a cover plate support. The scale body is arranged underground, and the high-precision module is arranged on the scale body; the scale body and the high-precision module are arranged below a preset reference surface; the high-precision module is used for receiving and feeding back a control signal; the weighing platform is arranged above the high-precision module, scale body cover plates are arranged on two sides of the weighing platform, and cover plate supports are connected below the scale body cover plates through bolts; the structure of the weighing platform is shaped like a Chinese character'tian ', and the weighing platform is also provided with a flexible anti-collision device. The high-precision weighing modules are arranged on the scale body in a combined mode, the requirement for high-precision weighing can be met by matching with the correspondingly designed scale body, and the weighing precision can be within 100 g under the large-load working condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the weighing technical field, and in particular to a high-precision weighing system. BACKGROUND

[0002] With the continuous progress of science and technology and the rapid development of engineering construction, large-scale mechanical equipment plays a vital role in modern industry. The size and weight measurement of large-scale mechanical equipment is crucial in the process of loading, unloading and handling. First, accurate measurement of the size of the equipment can provide valuable reference for the handling personnel to ensure that the equipment can smoothly pass through the doorway, passageway and road and other narrow spaces. In addition, accurate size measurement can also ensure the stability and safe counterweight of the equipment to reduce the risk of instability or accidents during transportation and installation. Similarly, accurate measurement of the weight of the equipment is crucial for selecting appropriate lifting equipment and planning the method of handling. Only accurate weight measurement can ensure the safety and effectiveness of handling.

[0003] The high-precision weighing system is mainly to solve the high-precision weighing demand of large-weight and large-length products. For example, after the process operation on the surface or inside of large products, such as applying paste or adding materials to the surface of the products, precise weight control is needed to determine the accuracy of the process. After such process operation, high-precision weighing is needed to ensure precise control of the process.

[0004] Common size measurement methods include three-dimensional measuring instruments, laser scanners and measuring instruments. Three-dimensional measuring instruments are high-precision measuring equipment that can determine the three-dimensional size of the equipment by measuring the distance and angle in each direction of the measuring equipment. Laser scanners use a laser beam to scan the surface of the equipment to generate point cloud data to obtain a three-dimensional model of the equipment. Measuring instruments are usually used in places where equipment is not easily accessible, using measuring tools such as tape measures, vernier calipers and measuring sensors to measure the size.

[0005] When weighing an object, the object is usually placed directly on the weighing platform of the scale for weighing. However, when weighing large objects, hoisting equipment is needed to place the object on the weighing platform, or hoisting equipment is needed to remove the object from the weighing platform. The finished product platform scale can solve the high-precision measurement of some small-shaped products, but it cannot currently perform high-precision weighing of large-length and large-weight products, resulting in low precision and large errors during the weighing process, affecting process control. CONTENT OF THE INVENTION

[0006] The present application provides a high-precision weighing system to solve the problem that large-length and large-weight products cannot be weighed with high precision in the prior art, resulting in low precision and large errors during the weighing process, affecting process control.

[0007] The application provides a high-precision weighing system, which comprises:

[0008] a scale body, a plurality of high-precision modules, a scale table, a scale body cover plate and a cover plate support;

[0009] The scale body is arranged below the ground, and the high-precision modules are arranged on the scale body; the scale body and the high-precision modules are arranged below a preset reference surface; the high-precision modules are weight sensors and / or length sensors, and the high-precision modules are used for receiving and feeding back control signals;

[0010] The scale table is arranged above the high-precision modules, both sides of the scale table are provided with scale body cover plates, and the cover plate supports are connected to the scale body cover plates through bolts below the scale body cover plates;

[0011] The scale table has a T-shaped structure, and the scale table is further provided with a flexible anti-collision device.

[0012] In some possible implementation manners, the flexible anti-collision device comprises a buffer wheel, a buffer wheel fixing seat, an adjusting mounting seat, a guide shaft and a locking stud; the buffer wheel is fixed on the buffer wheel fixing seat through a pin shaft, the adjusting mounting seat penetrates through the guide shaft, and the buffer wheel fixing seat and the guide shaft are connected through the locking stud; the buffer wheel can be adjusted to move forward and backward by adjusting the locking stud.

[0013] In some possible implementation manners, the scale body is provided with a fixing plate at the bottom, and an adjusting pad iron is further arranged below the fixing plate, and the adjusting pad iron is used for adjusting the flatness of the scale body.

[0014] In some possible implementation manners, the scale table has a concave structure with low middle and high sides, and a vehicle passing plate is further arranged at the middle position of the scale table and bears on the ground.

[0015] In some possible implementation manners, a channel of a transfer vehicle is connected to the front and rear of the vehicle passing plate, and a vehicle navigation color band or a navigation magnetic strip is arranged in the middle of the channel.

[0016] In some possible implementation manners, a transition plate is arranged between the scale table and the high-precision modules.

[0017] In some possible implementation manners, reinforcing ribs are arranged at both sides of the connection position of the scale table and the high-precision modules, a cross beam is arranged at the middle position of the scale table corresponding to the high-precision modules, and the cross beam is connected with the reinforcing ribs.

[0018] From the above, the application provides a high-precision weighing system, which comprises a scale body, a scale table, a high-precision module, a scale body cover plate and a cover plate support; the scale body is arranged below the ground, the high-precision module is arranged on the scale body; the scale body and the high-precision module are arranged below a preset reference surface; the high-precision module is a weight sensor and / or a length sensor, and is used for receiving and feeding back a control signal; the scale table is arranged above the high-precision module, both sides of the scale table are provided with the scale body cover plate, and the cover plate support is connected to the scale body cover plate through bolts below the scale body cover plate; the structure of the scale table is a T-shaped structure, and the scale table is further provided with a flexible anti-collision device. The scale table and the scale body with special structures are arranged in a sunken manner underground, so as to meet the weighing of large products and heavy load working conditions, and the sunken arrangement can adapt to various working conditions. The high-precision weighing module is arranged on the scale body in a combined manner, and by matching the scale body with corresponding design, the requirement of high-precision weighing can be met. The transport channel and the scale body are arranged separately, so that the invalid range can be avoided to improve the weighing efficiency and the weighing precision. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0020] Figure 1 A high-precision weighing system schematic diagram provided by the embodiment of the application;

[0021] Figure 2 A high-precision weighing system top view provided by the embodiment of the application Figure 1 ;

[0022] Figure 3 A high-precision weighing system top view provided by the embodiment of the application Figure 2 ;

[0023] Figure 4 A high-precision weighing system front view provided by the embodiment of the application;

[0024] Figure 5 A scale body schematic diagram provided by the embodiment of the application;

[0025] Figure 6 A scale table schematic diagram provided by the embodiment of the application;

[0026] Figure 7 A high-precision weighing system cross-sectional schematic diagram provided by the embodiment of the application;

[0027] Figure 8A flexible anti-collision device provided by the embodiment of the present application.

[0028] Illustration: 1 - scale body; 2 - high-precision module; 3 - scale table; 4 - cover plate support; 5 - scale body cover plate; 6 - flexible anti-collision device; 61 - buffer wheel; 62 - buffer wheel fixing seat; 63 - adjusting mounting seat; 64 - guide shaft; 65 - locking stud; 7 - vehicle access plate; 8 - passageway. DETAILED DESCRIPTION

[0029] The embodiments will be described in detail below with reference to examples shown in the drawings. When the following description refers to the drawings, identical numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application.

[0030] With the continuous progress of technology and the rapid development of engineering construction, large-scale mechanical equipment plays a vital role in modern industry. The size and weight measurement of large-scale mechanical equipment is crucial in the process of loading, unloading and handling. First, accurate measurement of the size of the equipment can provide valuable reference for the handling personnel to ensure that the equipment can smoothly pass through the doorway, passageway and road, etc. narrow space. In addition, accurate size measurement can also ensure the stability and safe counterweight of the equipment, so as to reduce the risk of instability or accidental accidents during transportation and installation. Similarly, accurate measurement of the weight of the equipment is crucial for selecting appropriate lifting equipment and planning the method of handling. Only by implementing accurate weight measurement can the safety and effectiveness of handling be ensured.

[0031] High-precision weighing systems are mainly used to solve the high-precision weighing requirements of large-weight and large-length products. For example, after the surface or internal process operation of large products, such as product coating slurry or surface material addition, precise weight control is required to determine the accuracy of the process. After such process operation, high-precision weighing is required to ensure accurate process control.

[0032] Common size measurement methods include three-dimensional measuring instruments, laser scanners and measuring instruments, etc. Three-dimensional measuring instruments are high-precision measuring equipment that can determine the three-dimensional size of the equipment by measuring the distance and angle in each direction of the measuring equipment. Laser scanners use laser beams to scan the surface of the equipment to generate point cloud data to obtain a three-dimensional model of the equipment. Measuring instruments are usually used in places where equipment is not easy to reach, using measuring tools such as tape measures, vernier calipers and measuring sensors, etc. to measure the size.

[0033] Weight measurement can use methods such as weighing scales, tension meters, and floating weighing. Weighing scales are usually placed on the device for measurement, and the weight of the device is determined according to the value displayed on the scale. Tension meter is a device that measures the tension of the device, and the weight of the device is calculated according to the tension. Floating weighing is to immerse the device in water and measure the displacement of the water to determine the volume of the device, and then calculate its weight. Regardless of which method is used, it is necessary to ensure the stability of the measuring device and the appropriate unit of measurement to ensure the accuracy of the measurement results.

[0034] When measuring size and weight, some measures need to be taken to ensure the accuracy of the measurement. First, ensure that accurate and reliable measuring instruments and equipment are calibrated and tested to ensure the accuracy of the measurement results. Second, select the appropriate measurement method according to the shape and size of the device to minimize errors. In addition, in order to avoid the interference of auxiliary equipment in the measurement process, the device should be isolated from external factors and ensure that there is no interference during the measurement process. Finally, after the measurement is completed, the data should be analyzed and verified to ensure the accuracy and reliability of the measurement results.

[0035] In the process of handling large mechanical equipment, size and weight measurement is a crucial step. Accurate measurement of the size and weight of the equipment can ensure the safe handling and effective installation of the equipment, reducing the risk of accidents and losses. By using high-precision measuring instruments and scientific measurement methods, and taking appropriate measures to ensure the accuracy of the measurement, good results can be achieved in the handling of large mechanical equipment. Size and weight measurement is a key step to ensure the safe transportation and smooth installation of equipment, and plays an indispensable role in industrial development and modernization.

[0036] When weighing objects, the current method is to directly place the object on the weighing platform of the scale. However, when weighing large objects, hoisting equipment is required to place the object on the weighing platform, or hoisting equipment is required to remove the object from the weighing platform. The current finished product platform scale can solve the high-precision measurement of some small-shaped products, but it cannot currently perform high-precision weighing of large-length and large-weight products, resulting in low precision and large errors during weighing, affecting process control.

[0037] Therefore, the present application provides a high-precision weighing system, which comprises a weighing platform and a scale body with large-span bending moment resistance, combined with a high-precision weighing module to form a weighing system main body, and a separate transport vehicle or transfer vehicle independent channel is provided to effectively avoid increasing the invalid range and reducing the additional load. The high-precision weighing system described above allows large-weight products to meet the process requirements of high-precision weighing.

[0038] In some embodiments, as shown inFigure 1 As shown, this application provides a high-precision weighing system, which includes:

[0039] The weighing platform consists of a weighing body 1, multiple high-precision modules 2, a weighing platform 3, a cover plate bracket 4, and a weighing body cover plate 5. The weighing body 1 is located below the ground, and the high-precision modules 2 are located on the weighing body 1. The weighing body 1 and the high-precision modules 2 are located below a preset reference plane. The high-precision modules 2 are weight sensors and / or length sensors, and are used to receive and provide feedback control signals.

[0040] The weighing platform 3 is positioned above the high-precision module 2. The weighing platform 3 has weighing body cover plates 5 on both sides, and the weighing body cover plates 5 are connected to the cover plate brackets 4 by bolts. The weighing platform 3 has a grid-shaped structure and is also equipped with a flexible anti-collision device 6.

[0041] Among them, the weighing platform 3 is a concave structure with a lower middle and higher sides. A vehicle passage plate 7 is also provided in the middle of the weighing platform 3. The vehicle passage plate 7 is supported on the ground. The front and rear of the vehicle passage plate 7 are connected to the passage 8 of the transfer vehicle. The passage 8 is equipped with a vehicle navigation color strip or navigation magnetic strip in the middle.

[0042] like Figures 2 to 7 As shown, the weighing platform 1 and multiple high-precision modules 2 are submerged below a preset reference surface. The multiple high-precision modules 2 are connected in series, and the weighing platform 3 is placed on top of the series-connected high-precision modules 2. Weighing platform cover plates 5 are set on both sides of the weighing platform 3. The weighing platform cover plates 5 are detachable for easy wiring and maintenance. The preset reference surface is the ground (concrete foundation) of a preset area, which can be divided according to the actual area. The weighing body 1, multiple high-precision modules 2, and weighing platform 3 are all installed underground, below the ground level (i.e., a concrete foundation). Because the weighing platform 3 has a grid-like structure, the central section of this grid serves as a passageway 8 for transport vehicles, separating it from the weighing system comprised of the weighing body 1, multiple high-precision modules 2, and weighing platform 3, ensuring no interference between them. The weighing platform 3 has a concave structure, lower in the middle and higher on both sides. A vehicle passageway 7 is also located in the middle of the weighing platform 3, supported by the ground (i.e., the concrete foundation). The lower part of the weighing platform 3 is below the ground level, with the weighing platform 3 submerged below the ground. The vehicle passageway 7 covers the central section of the weighing platform 3, serving as a connection between the entire system and the external passageway. By incorporating the vehicle passageway 7, various forms of transport do not impose additional load on the high-precision weighing system provided in this application.

[0043] like Figure 5As shown, the weighing body 1, as the foundation of the high-precision weighing system, is placed at the bottom. The weighing body 1 is leveled by adjusting the shims. The high-precision module 2 is arranged on the weighing body 1. Then, the weighing platform 3 is placed on top of the multiple series-connected high-precision modules 2. The weighing body 1 and the weighing platform 3 are connected through the high-precision modules 2 to form the main body of the high-precision weighing system of this application. Figure 5 AA represents the cross-sectional view of the weighing platform 1. A flexible anti-collision device 6 is installed on the weighing platform 3 to protect it from direct collision with the foundation when subjected to external forces. Weighing platform cover plates 5 are arranged on both sides of the weighing platform 3 for easy maintenance. Because the weighing platform 3 has a grid structure, cutting off the trolley's running path, a vehicle passage plate 7 is arranged above the cut section, covering the middle of the weighing platform 3 to connect the entire high-precision weighing system and facilitate transportation. Figure 6 BB in the middle is the cross-sectional view of platform 3.

[0044] In some embodiments, the flexible anti-collision device 6 consists of a buffer wheel 61, a buffer wheel fixing seat 62, an adjusting mounting seat 63, a guide shaft 64, and a locking stud 65. The buffer wheel 61 is fixed to the buffer wheel fixing seat 62 by a pin, the adjusting mounting seat 63 passes through the guide shaft 64, and the buffer wheel fixing seat 62 and the guide shaft 64 are connected by the locking stud 65. By adjusting the locking stud 65, the buffer wheel 61 can be adjusted to move back and forth.

[0045] like Figure 8 As shown, in this application, the buffer wheel 61 is fixed to the buffer wheel mounting base 62 by a pin. The buffer wheel mounting base 62 and the guide shaft 64 are respectively connected to the locking stud 65. By adjusting the locking stud 65, the front-to-back displacement of the buffer wheel 61 can be adjusted to meet the installation error of the weighing platform 3. Adjusting the position of the buffer wheel 61 can prevent the top weighing platform 3 from undergoing large displacement after being subjected to external force and failing to return to its original position in time. On the other hand, it can prevent the weighing platform 3 from directly colliding with other parts, effectively protecting the weighing platform 3 and ensuring weighing accuracy.

[0046] In addition to connecting the high-precision module 2, the top of the weighing platform 3 must also meet the load-bearing requirements of different products. To accommodate the off-center load during the weighing process, a large, integrated weighing platform is designed to connect all the high-precision modules 2 (i.e., sensors) into a single unit, thus overcoming the off-center load caused by the workpiece. This requires the weighing platform 3 to remain undeformed under heavy loads, as its special structural design will generate a significant bending moment, necessitating overcoming the accuracy errors caused by deformation and sagging on both sides of the weighing platform.

[0047] Because of the above control points, the main frame of the scale body 1 and the scale platform 3 are welded by standard profiles, and the corresponding points increase the mechanical auxiliary beam, eliminate the weak points of the structure, reduce the deformation of the overall structure, and the overall welding is annealed. Then the bonding surface and the bearing surface are processed as a whole to ensure the flatness of the whole and meet the precision control requirements.

[0048] In some embodiments, the bottom of the scale body 1 is provided with a fixing plate, and an adjusting pad iron is further arranged below the fixing plate, which is used to adjust the flatness of the scale body 1.

[0049] The structure design of the scale body 1 is mainly to ensure that the installation surface of each high-precision module 2 is on the same plane, and also needs to ensure the rigidity of the bottom bearing of the high-precision module 2 to ensure that it will not deform after being stressed, thereby generating errors. The bottom of the scale body 1 is provided with a fixing plate, and an adjusting pad iron is placed below the fixing plate during installation, and the flatness of the scale body 1 is ensured through the fixing plate and the adjusting pad iron to ensure the weighing accuracy.

[0050] In some embodiments, a transition plate is arranged between the scale platform 3 and the high-precision module 2.

[0051] In some embodiments, reinforcing ribs are arranged on both sides of the connection position of the scale platform 3 and the high-precision module 2, and a cross beam is arranged at the middle position of the scale platform 3 corresponding to the high-precision module 2, and the cross beam is connected with the reinforcing ribs.

[0052] A transition plate is arranged at the lower part of each high-precision module 2, and reinforcing ribs are arranged outside the scale body 1, and the entire frame is connected through a cross beam at the position corresponding to the high-precision module 2 located at the middle position. Combined with the arrangement form of the high-precision module 2, a deformation-resistant bearing beam, i.e. the above-mentioned cross beam, is arranged to connect multiple high-precision modules 2 in series, so as to ensure that all high-precision modules 2 are subjected to bearing force at the same time, which is also a measure to ensure high precision.

[0053] The span of the high-precision weighing system provided by the present application is determined according to the length of the product and the tray, and the span of the weighing system covers the length of the product, and the range of the system is determined according to the maximum weight of the product. Generally, the range of weighing is about 1.25 times the maximum weight of the product to select the range.

[0054] The working principle of the high-precision weighing system provided by the present application is as follows: when the product needs to be weighed, the trolley lifts and transports the product to the weighing area, then enters the channel 8 of the transfer vehicle of the weighing system through the planned route, and after reaching the specified position, the trolley lifting plate is lowered and the product is placed on the scale platform 3, the scale platform 3 is stressed, causing the high-precision module 2 below the scale platform 3 to change the sensing probe, and then converting the signal to the meter head, the meter head concentrates all the numerical signals of the high-precision module 2, and feeds back the weighing result.

[0055] From the above embodiment, the application provides a high-precision weighing system, which comprises a scale body, a scale table, a high-precision module, a scale body cover plate and a cover plate support; the scale body is arranged below the ground, the high-precision module is arranged on the scale body; the scale body and the high-precision module are arranged below a preset reference surface; the high-precision module is a weight sensor and / or a length sensor, and is used for receiving and feeding back a control signal; the scale table is arranged above the high-precision module, both sides of the scale table are provided with the scale body cover plate, and the cover plate support is connected to the scale body cover plate through bolts below the scale body cover plate; the structure of the scale table is a T-shaped structure, and the scale table is further provided with a flexible anti-collision device. The scale table and the scale body with special structures are arranged in a sinking mode underground, so that the weighing of large products and heavy load working conditions is met, and meanwhile, the sinking arrangement can adapt to various working conditions. The high-precision weighing module is arranged on the scale body in a combined mode, so that the weighing accuracy requirement can be met by matching the scale body with corresponding design. The transport channel and the scale body are arranged separately, so that the invalid range can be avoided to improve the weighing efficiency and the weighing accuracy.

[0056] The similar parts among the embodiments provided in the application can be referred to each other, the specific embodiments provided above are only several examples under the general concept of the application, and do not limit the protection scope of the application. Any other embodiments extended according to the application scheme without creative labor belong to the protection scope of the application for those skilled in the art.

Claims

1. A high-precision weighing system, characterized in that, The high-precision weighing system includes: The scale body (1), multiple high-precision modules (2), scale platform (3), cover plate bracket (4), and scale body cover plate (5); The scale body (1) is located below the ground, and the high-precision module (2) is located on the scale body (1); the scale body (1) and the high-precision module (2) are located below a preset reference plane; the high-precision module (2) is a weight sensor and / or a length sensor, and the high-precision module (2) is used to receive and feedback control signals; The weighing platform (3) is positioned above the high-precision module (2), and the weighing platform (3) has weighing body cover plates (5) on both sides. The weighing body cover plates (5) are connected to the cover plate bracket (4) by bolts. The weighing platform (3) has a grid-shaped structure and is also equipped with a flexible anti-collision device (6).

2. The high-precision weighing system according to claim 1, characterized in that, The flexible anti-collision device (6) consists of a buffer wheel (61), a buffer wheel fixing seat (62), an adjusting mounting seat (63), a guide shaft (64), and a locking stud (65). The buffer wheel (61) is fixed on the buffer wheel fixing seat (62) by a pin. The adjusting mounting seat (63) passes through the guide shaft (64). The buffer wheel fixing seat (62) and the guide shaft (64) are connected by the locking stud (65). By adjusting the locking stud (65), the buffer wheel (61) can be adjusted to move forward and backward.

3. The high-precision weighing system according to claim 2, characterized in that, The bottom of the scale body (1) is provided with a fixing plate, and an adjusting shim is provided below the fixing plate. The adjusting shim is used to adjust the flatness of the scale body (1).

4. The high-precision weighing system according to claim 3, characterized in that, The weighing platform (3) is a concave structure with a low middle and high sides. A vehicle passage plate (7) is also provided in the middle of the weighing platform (3), and the vehicle passage plate (7) is supported on the ground.

5. The high-precision weighing system according to claim 4, characterized in that, The vehicle passageway (7) is connected to the front and rear of the transfer vehicle passageway (8), and the passageway (8) is provided with a vehicle navigation strip or a navigation magnetic strip in the middle.

6. The high-precision weighing system according to claim 1, characterized in that, A transition plate is provided between the weighing platform (3) and the high-precision module (2).

7. The high-precision weighing system according to claim 6, characterized in that, The weighing platform (3) is provided with reinforcing ribs on both sides of the connection position between it and the high-precision module (2). A crossbeam is provided in the middle position of the weighing platform (3) corresponding to the high-precision module (2), and the crossbeam is connected to the reinforcing ribs.

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