Self-adaptive calibrator

Abstract

The utility model discloses a self-adaptive calibrator, which comprises a loader, an upper force transmission frame, an upper connecting fork, a comparison sensor, a lower connecting fork and a lower force transmission frame, the upper end of the comparison sensor is connected with the bottom of the upper connecting fork, the top of the upper force transmission frame is movably connected with the top of the upper connecting fork, the loader is connected with the top of the upper connecting fork and moves up and down on the top of the upper connecting fork, and the loader is used for applying pressure to the top of the upper force transmission frame; the lower end of the comparison sensor is connected with the top of the lower connecting fork, and the bottom of the lower connecting fork is fixedly connected with the top of the lower force transmission frame. According to the self-adaptive calibrator provided by the utility model, internal force balance comparison calibration of tension and pressure is carried out by utilizing an internal force self-balancing principle and multi-dimensional perfect matching of the self-adaptive calibrator and the weighing module, and the self-adaptive calibrator has a vertical force automatic centering function and a horizontal indication assembly function, and is high in calibration precision, simple in installation mode and more convenient to maintain.

Description

Technical Field

[0001] The utility model relates to an adaptive calibrator, belonging to the technical field of weighing. Background Art

[0002] Currently, the amount of material loaded and discharged from material tanks in industrial settings usually requires weight detection and control to meet quality control requirements. Existing technology generally controls the material content and ratio in the tank by installing a weighing module at the bottom of the tank. However, the accuracy of the weighing module and the weighing system itself needs to be calibrated and verified regularly during initial and subsequent use to ensure accuracy. Existing technology usually uses the following methods for calibration:

[0003] Method 1: Weight calibration:

[0004] Under the bottom of the tank, find a place where you can load or hang weights and calibrate them with weights.

[0005] Method 2: Hydraulic tension loading comparison calibration:

[0006] Two lugs are welded in advance between the tank structure and the mounting surface. A load-weighing calibration system is installed between the two lugs for comparison and calibration. The load-weighing calibration system has a wide loading range and can apply sufficient load to the weighing module, achieving a full-load calibration effect.

[0007] Method 3: Alternative calibration:

[0008] Use an external independent weighing scale to weigh a certain amount of water and inject it into the material tank one by one to reach a certain weight of water for calibration.

[0009] The above-mentioned calibration method for the weighing module has the problems of cumbersome calibration process, complex structure, low calibration accuracy, etc. Therefore, the prior art has improved the above-mentioned calibration method, for example: Patent application number 202321414037.X "A weighing sensor calibration module" obtains the latest weighing data by designing a calibration sensor assembly and a calibration sensor instrument on the tank leg of the material tank, and compares it with the weighing data read by the calibrated sensor instrument to calibrate the calibrated sensor. There is no need to remove the weighing sensor, and the weighing sensor can be calibrated on-site. However, during installation, an additional anchor assembly needs to be added to the bottom end of the calibration sensor assembly, and the bearing capacity of the anchor assembly and the ground needs to be considered. The top of the calibration sensor assembly needs to be connected to the tank leg of the material tank through multiple connectors. The accuracy of the calibration sensor assembly in the horizontal and vertical directions cannot be guaranteed, which affects the calibration accuracy of the weighing module. Utility Model Content

[0010] The technical problem to be solved by the utility model is to overcome the shortcomings of the existing technology and provide an adaptive calibrator. It utilizes the principle of self-balancing internal force and the perfect multi-dimensional matching of the adaptive calibrator and the weighing module to perform internal force balance comparison and calibration of tension and pressure. It has the function of automatic vertical force centering and horizontal indication assembly, with high calibration accuracy, simple installation and more convenient maintenance.

[0011] In order to solve the above technical problems, the technical solution of the utility model is:

[0012] An adaptive calibrator comprises a loader, an upper force transmission frame, an upper connecting fork, a comparison sensor, a lower connecting fork and a lower force transmission frame;

[0013] The upper end of the comparison sensor is connected to the bottom of the upper connecting fork, the top of the upper force transmitting frame is movably connected to the top of the upper connecting fork, the loader is connected to the top of the upper connecting fork and moves up and down on the top of the upper connecting fork, and the loader is used to apply pressure to the top of the upper force transmitting frame;

[0014] The lower end of the comparison sensor is connected to the top of the lower connecting fork, and the bottom of the lower connecting fork is fixedly connected to the top of the lower force transmission frame.

[0015] Furthermore, the upper connecting fork includes a stud, an upper connecting seat, an upper ball head and an upper pin shaft, the stud is arranged at the top of the upper connecting seat, a spherical cavity is opened in the upper connecting seat, the upper ball head is arranged in the spherical cavity, the upper end of the comparison sensor passes through the upper ball head, and the upper pin shaft passes through the upper connecting seat, the upper ball head and the upper end of the comparison sensor.

[0016] Furthermore, a slide groove is provided on the top of the upper force transmission frame, and the slide groove is sleeved on the stud.

[0017] Furthermore, the loader is a nut, the loader is threadedly connected to the stud, and the loader is located above the slide groove.

[0018] Furthermore, the lower connecting fork includes a lower connecting seat, a lower ball head and a lower pin shaft. The bottom of the lower connecting seat is fixedly connected to the top of the lower force transmission frame. A spherical cavity is opened in the lower connecting seat. The lower ball head is arranged in the spherical cavity. The lower end of the comparison sensor passes through the lower ball head. The lower pin shaft passes through the lower connecting seat, the lower ball head and the lower end of the comparison sensor.

[0019] Furthermore, a level bubble is provided on the comparison sensor.

[0020] By adopting the above technical solution, the utility model has the following beneficial effects:

[0021] This adaptive calibrator utilizes a mechanical screw and a friction-free loader, enabling manual or electric loading. Mechanical screw loading eliminates the need for hydraulic loading, piping, oil cylinders, or loading pumps, resulting in a compact structure and small size, simple loading, and easy portability. It can also be expanded to electric screw loading, providing automatic, easy, and efficient operation.

[0022] 2. The adaptive calibrator of this utility model has the function of automatic vertical force centering and horizontal indication assembly, with high vertical accuracy and simpler and more convenient installation and maintenance.

[0023] 3. Compared with the tank weighing system of the prior art that uses external weight calibration or substitute calibration to calibrate the weighing module, the adaptive calibrator of the utility model utilizes the principle of internal force self-balancing and perfectly matches the adaptive calibrator and the weighing module in multiple dimensions to form an internal force balance comparison calibration system of tension and pressure, and uses a spiral loader to perform internal force self-balancing loading comparison calibration on the tank weighing system composed of the weighing module. The utility model does not require cumbersome, inefficient, difficult, and high-cost weight calibration or substitute calibration. The loader easily achieves high-precision full-load calibration, completely solving the long-standing problem of insufficient weight and inability to accurately calibrate in traditional methods. The utility model is easier to install and load, saves time and effort, and greatly shortens the calibration cycle. The utility model saves space and completes the calibration of the self-calibration module or the existing traditional module in a small space.

[0024] 4. Compared with the traditional external tension comparison and calibration, it is necessary to weld lugs on the legs of the tank or the lower part of the tank body and pre-embed the lugs on the ground, and install an unbalanced external force tension system between the upper and lower lugs for calibration. The adaptive calibrator of the utility model creatively forms an internal force balance comparison and calibration system with the weighing module to realize internal force self-balance comparison and calibration, and its calibration is not related to the customer's material tank and installation ground equipment such as weights, and self-calibration is achieved without modifying the material tank, module and ground. The utility model completely eliminates the additional modification workload and cost, such as the construction difficulties and additional costs caused by the installation of welded lugs. The utility model completely eliminates the hidden dangers of damage to on-site facilities and the ground, and maintains and maintains the environmental sanitation conditions of the material tank weighing site without being affected.

[0025] 5. The adaptive calibrator of this utility model adopts a multi-dimensional installation method, which can adapt to various installation methods and on-site environments of customers and realize fully automatic loading and efficient digital calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the adaptive calibrator of the present invention in use during calibration;

[0027] Figure 2 This is a structural diagram of the adaptive calibrator of the utility model during calibration;

[0028] Figure 3 for Figure 2 Side view of;

[0029] Figure 4 This is a schematic cross-sectional view of the structure of the adaptive calibrator of the present utility model;

[0030] Figure 5 This is another structural diagram of the adaptive calibrator of the utility model applied to a weighing module;

[0031] Figure 6 for Figure 5 Side view of;

[0032] Figure 7 This is a structural diagram of the weighing module used in the present utility model. DETAILED DESCRIPTION

[0033] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0034] like Figure 2 As shown, this embodiment provides an adaptive calibrator, which includes a loader 21, an upper force transmission frame 22, an upper connecting fork 23, a comparison sensor 24, a lower connecting fork 25 and a lower force transmission frame 26.

[0035] like Figure 2 As shown, the upper end of the comparison sensor 24 of this embodiment is connected to the bottom of the upper connecting fork 23, the top of the upper force upload frame 22 is movably connected to the top of the upper connecting fork 23, the bottom of the upper force upload frame 22 is connected to the side wall of the weighing module top plate 12 of the weighing module 1 by bolts, the loader 21 is connected to the top of the upper connecting fork 23 and moves up and down on the top of the upper connecting fork 23, and the loader 21 is used to apply pressure to the top of the upper force upload frame 22.

[0036] like Figure 4As shown, the upper connecting fork 23 of this embodiment includes a stud 231, an upper connecting seat 232, an upper ball head 233, and an upper pin 234. The stud 231 is mounted on top of the upper connecting seat 232. The upper connecting seat 232 defines a spherical cavity, and the upper ball head 233 is disposed within the spherical cavity. The upper end of the comparison sensor 24 extends through the upper ball head 233 and can roll within the spherical cavity of the upper connecting seat 232. The upper pin 234 extends through the upper connecting seat 232, the upper ball head 233, and the upper end of the comparison sensor 24, securing the upper end of the comparison sensor 24 to the upper ball head 233. The upper force transmitting frame 22 has a slot 221 at its top, which fits over the stud 231. The loader 21 of this embodiment is a nut, threadedly connected to the stud 231, and positioned above the slot 221. Before calibration, there is a certain gap between the top of the upper force-transmitting frame 22 and the loader 21. During calibration, the loader 21 is rotated to load the sensor. The loader 21 gradually rotates downward and presses the top of the upper force-transmitting frame 22. The loader 21 continues to rotate downward to load the sensor. Because the loader 21 is supported by the top of the upper force-transmitting frame 22, the upper connecting seat 232 is pulled upward during the loader 21's continued downward rotation, thereby applying an upward pulling force to the upper end of the comparison sensor 24.

[0037] like Figure 4 As shown, the lower end of the comparison sensor 24 of this embodiment is connected to the top of the lower connecting fork 25, the bottom of the lower connecting fork 25 is fixedly connected to the top of the lower force transmission frame 26, and the bottom of the lower force transmission frame 26 is connected to the side wall of the weighing module base plate 13 of the weighing module 1 by bolts.

[0038] like Figure 4 As shown, the lower connecting fork 25 of this embodiment includes a lower connecting seat 251, a lower ball head 252, and a lower pin 253. The bottom of the lower connecting seat 251 is fixedly connected to the top of the lower force transmission frame 26. The lower connecting seat 251 defines a spherical cavity, and the lower ball head 252 is disposed within the spherical cavity. The lower ball head 252 can roll within the spherical cavity of the lower connecting seat 251. The lower end of the comparison sensor 24 passes through the lower ball head 252. The lower pin 253 passes through the lower connecting seat 251, the lower ball head 252, and the lower end of the comparison sensor 24, securing the lower end of the comparison sensor 24 to the lower ball head 252.

[0039] like Figure 4 As shown, the upper and lower ends of the comparison sensor 24 of this embodiment are fixed in the upper and lower connecting seats through ball heads respectively. Since the ball heads will roll in the spherical cavities of the upper and lower connecting seats, the comparison sensor 24 can be automatically centered during the loading process, so that the comparison sensor 24 is always in a vertical state.

[0040] like Figure 2As shown, the comparison sensor 24 of this embodiment is provided with a level bubble 27. During installation, the position of the comparison sensor 24 can be fine-tuned left and right, front and back, or the position of the upper and lower force transmission frames 22 and 26 can be fine-tuned according to the indication status of the level bubble 27, so that the comparison sensor 24 is vertical, that is, the level bubble 27 is in the middle position. Then tighten the connecting bolts of the upper and lower force transmission frames and the weighing module top plate 12 and the weighing module bottom plate 13 to reach the specified torque to complete the installation. At this time, the adaptive calibrator 2 is in a vertical state, and the force value is displayed as zero or cleared. Install and adjust all the adaptive calibrators 2 in sequence and ensure that the force value is displayed as zero or displayed as zero after being cleared.

[0041] like Figure 2 、 3 As shown, the upper and lower force transmission frames of this embodiment are bolted to the weigh module top plate 12 and the weigh module bottom plate 13, respectively. Specifically, the bottom of the upper force transmission frame 22 is bolted to the weigh module top plate 12, while the bottom of the lower force transmission frame 26 is bolted to the weigh module bottom plate 13. The connection positions of the bottom of the upper force transmission frame 22 and the weigh module top plate 12, and the bottom of the lower force transmission frame 26 and the weigh module bottom plate 13, can be determined based on the actual installation space and equipment conditions on site. Figure 2 and Figure 3 The upper and lower force transmission frames are shown to be connected to the left side walls of the weighing module top plate 12 and the self-calibrating weighing module bottom plate 13 respectively. They can also be connected to other side walls around them. If the side walls of the upper and lower top plates of the weighing module are not designed with mounting holes, the self-calibrating adaptive calibrator 2 can flexibly change the installation and connection method, such as Figure 5 and Figure 6 , showing the upper and lower force transmission frames being connected to the top surfaces of the weighing module top plate and the weighing module bottom plate respectively.

[0042] In summary, in this embodiment, the adaptive calibrator 2 is installed between the weighing module top plate 12 and the weighing module bottom plate 13 of the weighing module 1, thereby forming an internal force loading comparison self-calibration system with the adaptive calibrator 2 and the weighing module 1. By rotating the loader 21 to load, the comparison sensor 24 gradually senses the determined accurate tension, while the weighing sensor 11 of the weighing module 1 gradually senses the accurate pressure of the same value. Figure 1 As shown, this comparative pressure simulates the gravity exerted by the material in the tank 4 on the weighing sensor 11. By obtaining the accurate tension determined by the adaptive calibrator 2, the weighing module 1 is accurately calibrated.

[0043] The following is an introduction to the weighing module used in this embodiment:

[0044] like Figure 7As shown, the weighing module 1 of this embodiment includes a weighing sensor 11, a weighing module top plate 12 arranged above the weighing sensor 11, and a weighing module bottom plate 13 arranged below the weighing sensor 11. The weighing module top plate 12 and the weighing sensor 11 are connected by a force transmission column. Figure 1 、 2 As shown, the tank leg plate 3 is fixed to the top of the weighing module top plate 12 by bolts, and the bottom of the weighing module bottom plate 13 is connected to the leg base 14 by bolts. The weighing module top plate 12 and the weighing module bottom plate 13 are both provided with mounting holes 6.

[0045] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adaptive calibrator, characterized in that It comprises a loader (21), an upper force transmission frame (22), an upper connecting fork (23), a comparison sensor (24), a lower connecting fork (25) and a lower force transmission frame (26); The upper end of the comparison sensor (24) is connected to the bottom of the upper connecting fork (23), the top of the upper force transmission frame (22) is movably connected to the top of the upper connecting fork (23), the loader (21) is connected to the top of the upper connecting fork (23) and moves up and down on the top of the upper connecting fork (23), and the loader (21) is used to apply pressure to the top of the upper force transmission frame (22); The lower end of the comparison sensor (24) is connected to the top of the lower connecting fork (25), and the bottom of the lower connecting fork (25) is fixedly connected to the top of the lower force transmission frame (26).

2. The adaptive calibrator according to claim 1, characterized in that: The upper connecting fork (23) comprises a stud (231), an upper connecting seat (232), an upper ball head (233) and an upper pin shaft (234); the stud (231) is arranged on the top of the upper connecting seat (232); a spherical cavity is provided in the upper connecting seat (232); the upper ball head (233) is arranged in the spherical cavity; the upper end of the comparison sensor (24) passes through the upper ball head (233); and the upper pin shaft (234) passes through the upper connecting seat (232), the upper ball head (233) and the upper end of the comparison sensor (24).

3. The adaptive calibrator according to claim 2, characterized in that: A slide groove (221) is provided on the top of the upper force transmission frame (22), and the slide groove (221) is sleeved on the stud (231).

4. The adaptive calibrator according to claim 2, wherein: The loader (21) is a nut, the loader (21) is threadedly connected to the stud (231), and the loader (21) is located above the slide groove (221).

5. The adaptive calibrator according to claim 1, wherein: The lower connecting fork (25) comprises a lower connecting seat (251), a lower ball head (252) and a lower pin shaft (253); the bottom of the lower connecting seat (251) is fixedly connected to the top of the lower force transmission frame (26); a spherical cavity is provided in the lower connecting seat (251); the lower ball head (252) is arranged in the spherical cavity; the lower end of the comparison sensor (24) passes through the lower ball head (252); and the lower pin shaft (253) passes through the lower connecting seat (251), the lower ball head (252) and the lower end of the comparison sensor (24).

6. The adaptive calibrator according to claim 1, characterized in that: The comparison sensor (24) is provided with a level bubble (27).

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