A rotary weighing platform

Abstract

This application provides a rotary weighing platform, belonging to the technical field of display stand technology. The rotary weighing platform provided by this application includes a load plate, a rotary support assembly, load cells, and a base. The load plate is fixed to one side of the rotary support assembly and can rotate on the assembly. The other side of the rotary support assembly is connected to the base via multiple load cells. The load cells weigh the object to be measured placed on the load plate, the load plate, and the rotary support assembly. By mounting the load plate on the rotary support assembly, the requirement for the load plate to rotate is met. By fixing the load plate and the rotary support assembly to the load cells, the functions of rotation and weighing are combined. The entire weight of the load plate, the rotary support assembly, and the object to be measured is transferred to the load cells, ensuring that the weighing accuracy is not affected by the rotational motion.

Description

Technical Field

[0001] This application belongs to the field of display stand technology, and more specifically, relates to a rotary weighing platform. Background Technology

[0002] Rotating display platforms are widely used in fields such as all-angle photography, 3D scanning equipment, and multi-angle product display. Currently, most rotating display platforms do not have a weighing function. Some rotating display platforms do have a weighing function, but when the display platform rotates, the measured load is easily affected by the rotation, resulting in poor measurement accuracy. In addition, their complex structural design leads to low system structural reliability. Utility Model Content

[0003] The purpose of this application is to provide a rotary weighing platform to solve the technical problems of the existing rotary weighing platform where the weighing accuracy is greatly affected by rotation and the overall structure is complex.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: This application provides a rotary weighing platform, which includes a load plate, a rotary support assembly, load cells and a base. The load plate is fixed to one side of the rotary support assembly and can rotate on the rotary support assembly. The other side of the rotary support assembly is connected to the base through multiple load cells. The load cells weigh the object to be measured placed on the load plate, the load plate and the rotary support assembly.

[0005] Building upon this, this application achieves the requirement for a rotating platform by mounting it on a rotating support assembly. By fixing the platform and rotating support assembly to the load cell, it combines rotation and weighing functions. The entire weight of the platform, rotating support assembly, and the object being measured is transferred to the load cell, ensuring that weighing accuracy is unaffected by rotational motion. Compared to existing technologies, this structure simplifies the overall design, reduces the number of components, lowers manufacturing costs, and improves system reliability. It solves the problems of inaccurate weighing and complex structures caused by the complexity of traditional rotary weighing platforms.

[0006] In one possible design, the rotary support assembly includes a rotary gear ring and a track support, with the rotary gear ring rotatably connected to the track support, the load plate fixedly connected to the rotary gear ring, and the track support connected to the load cell.

[0007] Building upon this, this application further defines the specific structure of the rotary support assembly. Through the coordinated design of the rotary gear ring and the track support, the dual functions of smooth rotation and accurate weighing are achieved. The rotary gear ring is responsible for transmitting rotational power, while the track support is responsible for bearing the weight and transmitting it to the load cell. The two have clearly defined roles yet work closely together. This design effectively isolates the lateral force generated by rotational motion from affecting weighing accuracy, solves the problem of mutual interference between the rotation and weighing structures in traditional designs, and improves the product's service life.

[0008] In one possible design, the rotary support assembly also includes balls and a ball support. A first track is provided on the rotary gear ring, and a second track is provided on the track support. The rotary gear ring is engaged with the track support, and a rotation space is formed between the rotary gear ring and the track support. The ball support and multiple balls are located in the rotation space, and the balls abut against the first track and the second track. Multiple ball rings are provided on the ball support, and the ball rings are sleeved on the balls.

[0009] Based on this, this application defines the structure of key components in the rotary support assembly—the balls and the ball bearing support. Through the precise cooperation of the first and second tracks with the balls, and the limiting effect of the ball bearing support, low-friction, high-precision relative rotation between the rotating gear ring and the track support is achieved. This design not only ensures rotational stability but also guarantees that the weight can be accurately and vertically transferred to the load cell, avoiding the impact of lateral forces generated by rotation on weighing accuracy. It is suitable for applications requiring simultaneous precise weighing and continuous rotation.

[0010] In one possible design, the rotating gear ring includes a gear ring body, an outer baffle disposed on the outside of the gear ring body, and an inner baffle disposed on the inside of the gear ring body. The outer baffle is provided with a buckle, and the track support is provided with a skirt. When the rotating gear ring is engaged with the track support, the buckle is engaged on one side of the skirt.

[0011] Based on this, this application specifically defines the connection method between the rotating gear ring and the track support. Through a snap-fit ​​design with the skirt, a reliable connection is achieved while maintaining necessary rotational clearance. The outer and inner baffles effectively prevent ball bearings from falling out, improving product reliability. This snap-fit ​​structure is simple and reliable, facilitating assembly and maintenance, while ensuring that components do not loosen due to vibration or impact during rotation, thus maintaining weighing accuracy. Compared to traditional bolt fixing methods, this design is simpler and more efficient.

[0012] In one possible design, a motor is also included, which is fixedly connected to the base. An output gear is provided on the output shaft of the motor, and an internal gear is provided on the inner ring of the rotating gear ring. The output gear meshes with the internal gear.

[0013] Based on this, this application defines the specific structure of the motor drive system. Through the meshing design of the internal gear and the output gear, smooth power transmission is achieved. The motor is fixed to the base rather than to rotating parts, effectively reducing interference from motor vibration with the load cell. The internal meshing gear design makes the structure more compact while providing a larger transmission ratio and torque output capacity, suitable for heavy-load applications. This design solves the problem of speed reduction in traditional rotary tables as weight increases, ensuring speed stability under different loads.

[0014] In one possible design, there are at least three load cells, which are evenly distributed on one side of the track support.

[0015] Based on this, this application specifies the number and distribution of weighing sensors, with at least three evenly distributed sensors ensuring the balance and stability of the platform's forces. This multi-point support design not only improves weighing accuracy but also enhances the platform's adaptability to objects with different weight distributions, avoiding weighing errors caused by different object placement positions. Compared to single-point weighing designs, this scheme better resists dynamic interference caused by rotation, ensuring the accuracy and reliability of weighing data during rotation.

[0016] In one possible design, the load cell is a steel sheet load cell, which is connected to the track support via a first support member and to the base via a second support member.

[0017] Based on this, this application specifically defines the type and connection method of the weighing sensor. A steel sheet weighing sensor is used, connected to the track support and base via first and second support members respectively, forming a stable force transmission path. The steel sheet weighing sensor can be square, as square steel sheet weighing sensors have high structural rigidity and stability, accurately transmitting vertical forces while suppressing lateral interference. This design simplifies the sensor installation structure, improves assembly accuracy, and ensures a clear force transmission path during weighing, reducing sources of error in intermediate stages.

[0018] In one possible design, the steel sheet load cell has multiple first mounting holes evenly distributed on it, and a second mounting hole is provided at the center of the steel sheet load cell. The first support is a first screw, and the second support is a second screw. The first screw passes through the first mounting hole and is connected to the track support, and the second screw passes through the second mounting hole and is connected to the base.

[0019] Based on this, this application specifies in detail the mounting hole positions and connection method of the load cell. The first mounting holes at the four corners and the second mounting hole in the center form a stable four-point support structure. This arrangement ensures uniform force distribution on the sensor and avoids measurement errors caused by off-center loading. The combined use of the first and second screws ensures connection strength while facilitating adjustment and calibration. The design of the second mounting hole in the center is particularly beneficial for concentrating the transmission of the main load, improving the overall rigidity and measurement accuracy of the weighing system.

[0020] In one possible design, the steel sheet load cell has four first mounting holes, which are located at the four corners of the steel sheet load cell.

[0021] Building upon this, this application further specifies the exact locations of the four first mounting holes. The arrangement of these holes at the four corners of the sensor maximizes its support stability. This symmetrical distribution design allows the sensor to evenly bear the load from the track support, effectively resisting the dynamic imbalance forces generated during rotation. The corner fixing also enhances the sensor's fatigue resistance during long-term use, extending its service life, while facilitating installation, debugging, maintenance, and replacement.

[0022] In one possible design, the base has a receiving cavity, within which the rotating support assembly and the load cell are located.

[0023] Building upon this, this application defines the housing structure of the base, integrating the rotating support assembly and the load cell within a closed space, providing excellent protection. The housing design not only enhances the product's appearance but also prevents external dust, liquids, and other contaminants from entering the precision mechanical components, improving the product's reliability in harsh environments. Simultaneously, this integrated design reduces the overall size, making the product more compact and portable, facilitating deployment in various application scenarios. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A structural diagram of a rotary weighing platform provided in an embodiment of this application; Figure 2 An exploded structural diagram of a rotating weighing platform provided in an embodiment of this application; Figure 3This is a schematic diagram of the structure of a rotating gear ring in a rotating weighing platform provided in an embodiment of this application; Figure 4 This is a schematic diagram of the track support structure in a rotating weighing platform provided in an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of a rotary weighing platform provided in an embodiment of this application; Figure 6 This is a schematic diagram of the base structure of a rotating weighing platform provided in an embodiment of this application.

[0026] The following are the labeling elements in the figure: 110-Loading plate; 120-Rotating gear ring; 130-Rail support; 140-Weighing sensor; 150-Base; 160-Ball bearing bracket; 170-Ball bearing; 180-Motor; 121-First track; 122-Gear ring body; 123-Outer baffle; 124-Inner baffle; 125-Internal gear; 126-Snap-on; 131-Second track; 132-Skirt; 151-Receiving cavity; 181-Output gear. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] It should be understood that the terminology used in the description of the various examples herein is for the purpose of describing the particular examples only and is not intended to be limiting. As used in the description of the various examples, the singular forms “a” (“a”, “an”) and “the” are intended to include the plural forms as well, unless the context explicitly indicates otherwise.

[0030] In the embodiments of this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0031] It should also be understood that, in this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a sliding connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0032] It should also be understood that the term “comprising” (also referred to as “includes”, “including”, “comprises” and / or “comprising”) as used in this specification specifies the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0033] It should be understood that the terms "an embodiment," "another embodiment," and "a possible design" used throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment or implementation is included in at least one embodiment of this application. Therefore, phrases such as "in one embodiment of this application," "in another embodiment of this application," and "a possible design" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0034] Please refer to this as well. Figure 1 and Figure 2 , Figure 1 This is a structural diagram of a rotary weighing platform provided in an embodiment of this application. Figure 2 This is an exploded structural diagram of a rotary weighing platform provided in an embodiment of this application. The rotary weighing platform provided in this embodiment of the application will now be described.

[0035] like Figure 1 and Figure 2As shown in the figure, this application embodiment provides a rotary weighing platform, which includes a loading plate 110, a rotary support assembly, weighing sensors 140, and a base 150. The loading plate 110 is fixed to one side of the rotary support assembly and can rotate on the rotary support assembly. The other side of the rotary support assembly is connected to the base 150 via multiple weighing sensors 140. The weighing sensors 140 weigh the object to be measured placed on the loading plate 110, the loading plate 110, and the rotary support assembly.

[0036] The rotary weighing platform of this embodiment includes a load plate 110, a rotary support assembly, load cells 140, and a base 150. The load plate 110 is fixed to one side of the rotary support assembly by means of clips 126 or adhesive, forming a rigid connection to ensure that the load plate 110 can rotate synchronously with the rotating components in the rotary support assembly. The other side of the rotary support assembly is connected to the base 150 via multiple load cells 140 (at least three are sufficient for stable planar support). The load cells 140 are evenly distributed below the rotary support assembly and are connected to the base 150 via connectors, providing support for the aforementioned components.

[0037] When the object to be measured is placed on the carrier plate 110, the weight of the object is sequentially transferred through the carrier plate 110 to the rotating support assembly (rotating gear ring 120, steel balls, and track support 130), and then fully applied to the load cell 140 by the bottom track support 130. Finally, the weight is transferred through the load cell 140 and the load-bearing nut column to the base 150 and then to the ground. During the entire force transmission process, no other support structure shares the weight, ensuring that the load cell 140 can accurately collect the total weight of the object to be measured, the carrier plate 110, and the rotating support assembly (the weight of the carrier plate 110 and the rotating support assembly can be discarded through a "tare operation").

[0038] In this embodiment, the connection between the load plate 110 and the rotating support assembly can be replaced by screw fixing. The number of load cells 140 can be selected as 3, 4, 6, or 8 depending on the load requirements. In this embodiment, 8 load cells 140 are provided on one side of the rotating support assembly. The specific number of load cells 140 can be set as needed to balance cost and accuracy requirements. This embodiment resolves the contradiction between the "rotation function" and "weighing function" of the rotary table. Through the design of the full weight transfer path, it ensures that the weighing accuracy is not affected during rotation, while simplifying the structure and reducing reliability issues caused by component redundancy.

[0039] like Figure 2As shown, in one embodiment of this application, the rotating support assembly includes a rotating gear ring 120 and a track support 130. The rotating gear ring 120 is rotatably connected to the track support 130, the load plate 110 is fixedly connected to the rotating gear ring 120, and the track support 130 is connected to the weighing sensor 140.

[0040] In this embodiment, the rotating support assembly consists of a rotating gear ring 120 and a track support 130. The rotating gear ring 120 and the track support 130 are rotatably connected. The loading plate 110 is fixed to the upper surface of the rotating gear ring 120 by means of a snap-fit ​​126 or adhesive, and rotates synchronously with the rotating gear ring 120; the lower surface of the track support 130 is rigidly connected to the load cell 140 by screws, and the other end of the load cell 140 is connected to the base 150.

[0041] When the load plate 110 carries an object, the object's weight is transferred through the load plate 110 to the rotating gear ring 120, then to the track support 130, and finally fully applied to the load cell 140 by the track support 130. Since the track support 130 does not participate in rotation, the weight it bears is stably applied to the load cell 140, avoiding interference from rotational motion on the weighing process. The separate design of the rotating gear ring 120 and the track support 130 decouples the rotational and weighing functions. The rotating gear ring 120 is responsible for transmitting rotational power, while the track support 130 is responsible for bearing the weight and transmitting it to the load cell 140; their functions are clearly defined yet closely coordinated. This design effectively isolates the lateral force generated by rotational motion from affecting weighing accuracy and solves the problem of mutual interference between the rotational and weighing structures in traditional designs.

[0042] The relative rotation between the rotating gear ring 120 and the track support 130 can be achieved using a sliding bearing or steel balls. Sliding bearings are suitable for low-speed, high-load applications, while steel balls 170 are suitable for high-speed rotation applications.

[0043] refer to Figure 2 , Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of the rotating gear ring 120 in a rotating weighing platform provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the track support 130 in a rotating weighing platform provided in an embodiment of this application.

[0044] like Figure 2 , Figure 3 and Figure 4As shown, in one embodiment of this application, the rotary support assembly further includes ball bearings 170 and ball bearing brackets 160. A first track 121 is provided on the rotary gear ring 120, and a second track 131 is provided on the track support 130. The rotary gear ring 120 is fastened to the track support 130, and a rotation space is formed between the rotary gear ring 120 and the track support 130. The ball bearing bracket 160 and a plurality of ball bearings 170 are located in the rotation space, and the ball bearings 170 abut against the first track 121 and the second track 131. A plurality of ball bearing rings 170 are provided on the ball bearing bracket 160, and the ball bearing rings 170 are sleeved on the ball bearings 170.

[0045] In this embodiment, the rotary support assembly, based on the previous embodiment, adds ball bearings 170 (steel balls) and ball bearing brackets 160. The first track 121 of the rotary gear ring 120 and the second track 131 of the track support 130 are both annular grooves. After the rotary gear ring 120 and the track support 130 are engaged, a rotational space is formed. The ball bearing bracket 160 is located within this rotational space, and multiple circular ball bearings 170 are evenly distributed on it. Each ball bearing 170 ring houses one ball bearing 170, thus confining the ball bearings 170 between the first track 121 and the second track 131 and ensuring their even distribution.

[0046] When the rotating gear ring 120 is driven to rotate, the balls 170 roll along the track under the constraint of the ball bearing bracket 160, achieving low-friction relative motion between the rotating gear ring 120 and the track support 130. The ball bearing bracket 160 prevents the balls 170 from shifting or stacking during rotation, ensuring smooth rotation. This reduces rotational friction to decrease energy consumption and avoids unstable weight transmission caused by ball 170 shifting, thus improving weighing accuracy. Simultaneously, the balls 170 only transmit weight in the vertical direction (to the track support 130), and the lateral force generated by their rolling is minimal, preventing interference with the strain detection of the weighing sensor 140.

[0047] In this embodiment, the number of ball bearings 170 can be adjusted according to the load, such as 12, 16, or 24, or other numbers of ball bearings 170 can be provided. The number of tracks can be one or two. For example, if one first track 121 is provided on the rotating gear ring 120, then a second track 131 is provided on the track support 130. If two first tracks 121 are provided on the rotating gear ring 120, then two second tracks 131 are provided on the track support 130.

[0048] In this embodiment, two first tracks 121 are provided on the rotating gear ring 120, and two second tracks 131 are provided on the track support 130. The dual-track design, combined with the ball bearing bracket 160 for limiting movement, ensures smooth rotation and even load distribution. The ball bearing bracket 160 prevents the steel balls from colliding and shifting, extending their service life. The dual-track design provides redundancy, ensuring basic functionality is maintained even if one track fails. This structure is suitable for applications requiring continuous rotation over extended periods.

[0049] like Figure 3 and Figure 4 As shown, in one embodiment of this application, the rotating gear ring 120 includes a gear ring body 122, an outer baffle 123 disposed on the outer side of the gear ring body 122, and an inner baffle 124 disposed on the inner side of the gear ring body 122. A buckle 126 is provided on the outer baffle 123, and a skirt 132 is provided on the track support 130. When the rotating gear ring 120 is engaged with the track support 130, the buckle 126 is engaged on one side of the skirt 132.

[0050] The rotating gear ring 120 of this embodiment includes a gear ring body 122, with an annular outer baffle 123 extending from its outer side and an inner baffle 124 on its inner side. Multiple elastic buckles 126 are spaced apart at the bottom of the outer baffle 123. The edge of the track support 130 has an annular skirt 132 extending horizontally outward, the height of which is adapted to the position of the buckles 126. When the rotating gear ring 120 is engaged with the track support 130, the buckles 126 of the outer baffle 123 engage on the side of the skirt 132 away from the gear ring body 122, forming an axial limit. This structure ensures that the rotating gear ring 120 will not axially separate or shift from the track support 130 during rotation, while also not affecting their relative rotational movement. The inner baffle 124 is used to limit the radial displacement of the ball bearings 170, and together with the buckle 126 structure of the outer baffle 123, further improves the overall stability of the rotating support assembly.

[0051] In this embodiment, the rotating gear ring 120 and the track support 130 are stably connected by the buckle 126 engaging with the skirt 132, preventing the components from separating due to vibration or uneven load during rotation, and ensuring the reliability of the rotation and weighing process.

[0052] refer to Figure 2 and Figure 5 , Figure 5 This is a schematic diagram of the internal structure of a rotary weighing platform provided in an embodiment of this application.

[0053] like Figure 2 and Figure 5As shown, in one embodiment of this application, the rotary weighing platform further includes a motor 180, which is fixedly connected to the base 150. An output gear 181 is provided on the output shaft of the motor 180, and an internal gear 125 is provided on the inner ring of the rotary gear ring 120. The output gear 181 meshes with the internal gear 125.

[0054] In this embodiment, the motor 180 can be a stepper motor. The motor 180 is fixed to the reserved mounting position on the base 150 by screws. Only one motor 180 is needed for light loads, while four motors 180 can be used for heavy loads. This embodiment does not limit the number of motors 180; an appropriate number of motors 180 can be set as needed. An output gear 181 is fixed on the output shaft of the motor 180. An internal meshing gear is provided on the inner ring surface of the rotating gear ring 120, and the output gear 181 meshes with the internal gear 125.

[0055] When the motor 180 starts, the output gear 181 drives the rotating gear ring 120 to rotate through the internal gear 125, which in turn drives the load plate 110, which is fixed to the rotating gear ring 120, to rotate synchronously. Since the motor 180 is fixed on the base 150, its vibration is transmitted directly to the ground through the base 150, rather than acting on the load cell 140, thus avoiding interference with the weighing accuracy caused by vibration.

[0056] In an alternative implementation, belt drive can be used instead of gear meshing. For example, a belt groove is provided on the outside of the rotating gear ring 120, and the motor 180 drives the rotating gear ring 120 to rotate via the belt.

[0057] This embodiment of the application achieves stable rotation of the loading plate 110 through an independent power transmission structure, while isolating the vibration of the motor 180 from the weighing sensor 140, thus solving the problem of weighing error caused by the vibration of the motor 180.

[0058] like Figure 2 As shown, in one embodiment of this application, there are at least three weighing sensors 140, and the weighing sensors 140 are evenly distributed on one side of the track support 130.

[0059] In this embodiment, there are eight load cells 140, which are evenly distributed on the lower surface of the track support 130 (in a ring array). Each load cell 140 is fixed to a mounting position on the lower surface of the track support 130 by screws, and the force direction of all load cells 140 is perpendicular to the plane of the track support 130.

[0060] Since three or more points can define a plane, the evenly distributed load cells 140 can stably support the track support 130 and the rotating components above it, ensuring that the weight is evenly distributed among the sensors. When the center of gravity of an object on the loading plate 110 shifts, multiple sensors can cancel out the off-center load effect through data fusion (such as weighted calculation), thereby improving weighing accuracy.

[0061] Furthermore, the load cells 140 can also be configured with three load cells arranged in an equilateral triangle, or four load cells arranged in a square. This uniform distribution of multiple sensors enables stable detection of the weight of the rotating support assembly and the object, solving the problem of off-center load error caused by single-point support, while also adapting to different load requirements.

[0062] In one embodiment of this application, the load cell 140 is a steel sheet load cell. The steel sheet load cell can be square, or other shapes. The steel sheet load cell is connected to the track support 130 via a first support member, and to the base 150 via a second support member.

[0063] The weighing sensor 140 in this embodiment is a square steel sheet weighing sensor (stress steel sheet), with circular mounting holes at its four corners and a through hole in its center. A screw post is located on the lower surface of the track support 130 at a corresponding position. A first support member (self-tapping screw) passes through the mounting holes at the four corners of the steel sheet, fixing the steel sheet to the track support 130. A second support member (load-bearing nut post) passes through the through hole in the center of the steel sheet, with one end locked to the steel sheet and the other end connected to the base 150, forming a rigid connection of "track support 130 - steel sheet weighing sensor - load-bearing nut post - base 150".

[0064] The square structure of the steel plate load cell ensures that the force is evenly distributed, and the fixing method at the four corners ensures that it deforms only in the vertical direction (due to weight), while the lateral force generated by rotation will not cause additional deformation, ensuring that the change in electrical parameters is only related to the weight.

[0065] In this embodiment, the first support member can be made of bolts and nuts instead of self-tapping screws. Through the structural design and connection method of the steel sheet load cell, it is ensured that its deformation is caused only by vertical weight, improving the accuracy of the weighing data, while simplifying the connection structure between the sensor and the track support 130 and the base 150.

[0066] In one embodiment of this application, a plurality of first mounting holes are evenly distributed on the steel sheet load cell, and a second mounting hole is provided at the center of the steel sheet load cell. The first support is a first screw, and the second support is a second screw. The first screw passes through the first mounting hole and is connected to the track support 130, and the second screw passes through the second mounting hole and is connected to the base 150.

[0067] In this embodiment, the square steel sheet load cell has four first mounting holes (located at the four corners) and one second mounting hole (located at the center). The first mounting holes correspond one-to-one with the four screw holes on the lower surface of the track support 130. A first screw (self-tapping screw) passes through the first mounting hole and is tightened into the screw hole of the track support 130, thus fixing the steel sheet to the track support 130. The second mounting hole mates with a load-bearing nut post. A second screw (round head screw) passes through the bolt hole of the base 150 and is tightened into the other end of the load-bearing nut post, connecting the steel sheet, the load-bearing nut post, and the base 150 as a single unit.

[0068] This "four-corner fixed + center-bearing" structure ensures a rigid connection between the steel plate load cell and the track support 130 (allowing the weight to be fully transferred to the steel plate), while also transferring the weight to the base 150 via the center-bearing nut, avoiding weight diversion caused by screw connections. Through multi-point fixing and center-bearing design, the steel plate load cell can fully bear the weight transferred by the track support 130, with a stable connection structure, no weight loss, and improved weighing accuracy.

[0069] In one embodiment of this application, the steel sheet weighing sensor is provided with four first mounting holes, which are respectively located at the four corners of the steel sheet weighing sensor.

[0070] In this embodiment, the four first mounting holes of the square steel sheet load cell are located at the four apex corners of the steel sheet, with equal spacing between the holes (distributed in a square). Four screw holes are also provided at corresponding positions on the lower surface of the track support 130, coaxial with the first mounting holes of the steel sheet. The first screws pass through these mounting holes to secure the steel sheet tightly to the track support 130.

[0071] The mounting holes at the four corners ensure symmetrical force distribution on the steel sheet load cell. When the track support transmits weight, the steel sheet deforms uniformly, avoiding localized stress concentration caused by misalignment of the fixing points and ensuring a linear relationship between electrical parameter changes and weight. The symmetrically distributed fixing points guarantee uniform force on the steel sheet load cell, reducing weighing deviations caused by assembly errors and improving detection stability.

[0072] refer to Figure 2 and Figure 6 , Figure 6 This is a schematic diagram of the structure of the base 150 in a rotating weighing platform provided in an embodiment of this application. Figure 2and Figure 6 As shown, in one embodiment of this application, a receiving cavity 151 is provided on the base 150, and the rotating support assembly and the weighing sensor 140 are both located in the receiving cavity 151.

[0073] In this embodiment, the base 150 is a square or circular shell structure, with an internal cavity 151. The rotary support assembly (rotary gear ring 120, track support 130, ball bearings 170, etc.) and the load cell 140 are all located within the cavity 151, with only the upper surface of the loading plate 110 protruding from the top of the base 150. The side wall of the base 150 has pre-drilled holes for the motor 180 cable and the load cell 140 signal line to pass through.

[0074] In addition, one or more panels can be installed on the side wall of the base 150. These panels are used to install power input ports, USB communication ports, switches, etc. A circuit board can also be installed in the base 150. The circuit board is mainly used for controlling the motor 180, controlling the rotation angle, and acquiring weighing data.

[0075] The design of the housing 151 protects internal components from external dust and impacts, while isolating the rotating support assembly and load cell 140 from the external environment, reducing interference from external factors such as airflow and vibration on weighing accuracy. Furthermore, the compact integrated structure simplifies the overall assembly process and reduces production complexity. The housing 151 provides integrated protection for components, improving the equipment's environmental adaptability and structural stability, while also simplifying the appearance design to suit different application scenarios.

[0076] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0078] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the scope of protection of this application includes the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of this application.

[0079] This document uses specific examples to illustrate the working principle and implementation method of the rotary weighing platform of this application. The description of the above embodiments is only for the purpose of helping to understand the specific settings and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation method and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0080] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotating weighing platform, characterized in that, The device includes a load plate, a rotating support assembly, load cells, and a base. The load plate is fixed to one side of the rotating support assembly and can rotate on the rotating support assembly. The other side of the rotating support assembly is connected to the base via multiple load cells. The load cells weigh the object to be measured placed on the load plate, the load plate, and the rotating support assembly.

2. The rotating weigh platform of claim 1 wherein, The rotating support assembly includes a rotating gear ring and a track support. The rotating gear ring is rotatably connected to the track support. The load plate is fixedly connected to the rotating gear ring. The track support is connected to the weighing sensor.

3. The rotary weighing platform as described in claim 2, characterized in that, The rotary support assembly further includes balls and a ball support bracket. A first track is provided on the rotary gear ring, and a second track is provided on the track support. The rotary gear ring is fastened to the track support, and a rotation space is formed between the rotary gear ring and the track support. The ball support bracket and a plurality of balls are located within the rotation space, and the balls abut against the first track and the second track. A plurality of ball rings are provided on the ball support bracket, and the ball rings are sleeved on the balls.

4. The rotary weighing platform as described in claim 2, characterized in that, The rotating gear ring includes a gear ring body, an outer baffle disposed on the outer side of the gear ring body, and an inner baffle disposed on the inner side of the gear ring body. The outer baffle is provided with a buckle, and the track support is provided with a skirt. When the rotating gear ring is fastened to the track support, the buckle is engaged on one side of the skirt.

5. The rotary weighing platform as described in claim 3, characterized in that, It also includes a motor, which is fixedly connected to the base. An output gear is provided on the output shaft of the motor, and an internal gear is provided on the inner ring of the rotating gear ring. The output gear meshes with the internal gear.

6. The rotary weighing platform as described in any one of claims 2 to 5, characterized in that, The plurality of weighing sensors are at least three weighing sensors, and the plurality of weighing sensors are evenly distributed on one side of the track support.

7. The rotary weighing platform as described in claim 6, characterized in that, The weighing sensor is a steel sheet weighing sensor, which is connected to the track support through a first support member and to the base through a second support member.

8. The rotary weighing platform as described in claim 7, characterized in that, The steel sheet load cell has multiple first mounting holes evenly distributed on it, and a second mounting hole is provided in the center of the steel sheet load cell. The first support is a first screw, and the second support is a second screw. The first screw passes through the first mounting hole and is connected to the track support, and the second screw passes through the second mounting hole and is connected to the base.

9. The rotary weighing platform as described in claim 8, characterized in that, The steel sheet load cell is provided with four first mounting holes, which are located at the four corners of the steel sheet load cell.

10. The rotary weighing platform as described in claim 1, characterized in that, The base is provided with a receiving cavity, and the rotary support assembly and the weighing sensor are both located in the receiving cavity.

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