A feed weight detection device for a centrifuge

Abstract

The utility model belongs to centrifugal machine technical field discloses a kind of feeding weight detection device for centrifugal machine, including the weighing assembly and shock-absorbing component of elastic support connection between rack and centrifugal machine, shock-absorbing component is set to the feeding end of centrifugal machine, weighing assembly is set to the other end of centrifugal machine, including mounting bracket, support frame, elastic bearing plate and weight sensor, support frame is fixedly connected to centrifugal machine, mounting bracket and weight sensor are spaced apart and installed on rack, elastic bearing plate one end is fixedly connected to mounting bracket, other end is clamped between the detection end of support frame and weight sensor, form cantilever structure, elastic bearing plate can both carry centrifugal machine deadweight, weight sensor is accurately transmitted to the feeding weight of centrifugal machine using self elastic deformation simultaneously, to realize the function of accurately detecting feeding weight, effectively avoid the interference of equipment deadweight to feeding weight detection, improve the accuracy and stability of feeding weight detection.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a feeding weight detection device for centrifuges. Background Technology

[0002] During centrifuge operation, precise control of the feed weight directly affects separation efficiency, product quality, and production safety. To achieve real-time monitoring and control of the feed rate, the industry currently commonly uses a weighing mechanism to directly weigh the entire centrifuge. This method requires installing the weighing mechanism at the centrifuge's support structure. The weight data collected by the weighing mechanism is subtracted from the centrifuge's own weight to determine the feed weight.

[0003] However, in practical applications, the weight of a centrifuge is usually much greater than the weight of a single feed, with the difference reaching several times or even tens of times. To cover the overall weight of the centrifuge (including its own weight and maximum feed capacity), the weighing mechanism needs to use a large-span measuring element. However, large-span measuring elements have lower resolution and sensitivity. When detecting feed weights much smaller than the range, they are easily affected by factors such as equipment vibration and environmental interference, leading to a significant increase in the detection error of the feed weight data, making it difficult to meet the requirements of high-precision production processes for feed weight control.

[0004] Therefore, there is an urgent need to propose a feed weight detection device for centrifuges to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a feed weight detection device for centrifuges, effectively avoiding the interference of the equipment's own weight on feed weight detection, and improving the accuracy and stability of feed weight detection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feed weight detection device for a centrifuge includes a weighing component and a shock-absorbing component, which are elastically connected between a frame and a centrifuge. The shock-absorbing component is located at the feed end of the centrifuge, and the weighing component is located at the end of the centrifuge away from the feed end. The weighing component includes a mounting frame, a support frame, an elastic bearing plate, and a weight sensor. The support frame is fixedly connected to the centrifuge. The mounting frame and the weight sensor are installed on the frame at intervals. One end of the elastic bearing plate is fixedly connected to the mounting frame, and the other end is clamped between the support frame and the detection end of the weight sensor.

[0008] In some alternative embodiments, the weighing assembly further includes a first elastic damper disposed between the support frame and the elastic bearing plate.

[0009] In some alternative embodiments, the first elastic damper is a rubber damper.

[0010] In some optional embodiments, the weighing assembly further includes an adjusting pad disposed between the elastic bearing plate and the first elastic damper.

[0011] In some alternative embodiments, the elastic bearing plate is a spring steel plate.

[0012] In some optional embodiments, the mounting end of the weight sensor is rotatably connected to the frame about a first pivot, and the detection end of the weight sensor is rotatably connected to the elastic support plate about a second pivot. Both the first pivot and the second pivot extend horizontally and are arranged at an angle.

[0013] In some alternative embodiments, the damping assembly includes at least two second elastic dampers, which are spaced apart along the width direction of the centrifuge.

[0014] In some alternative embodiments, the second elastic damper is an elastic damping damper.

[0015] In some optional embodiments, the upper end of the second elastic shock absorber is provided with a first thread for connection to the centrifuge, and the lower end of the second elastic shock absorber is provided with a second thread for connection to the frame, wherein the first thread and the second thread are arranged at intervals so that the centrifuge and the frame are not rigidly connected.

[0016] In some alternative embodiments, the mounting bracket and / or the support bracket is a multi-faceted enclosed shell structure.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a feeding weight detection device for a centrifuge, including a weighing component and a shock-absorbing component, which are elastically connected between the frame and the centrifuge. The shock-absorbing component is located at the feeding end of the centrifuge, and the weighing component is located at the end of the centrifuge away from the feeding end. The weighing component includes a mounting frame, a support frame, an elastic bearing plate, and a weight sensor. The support frame is fixedly connected to the centrifuge, and the mounting frame and the weight sensor are installed on the frame at intervals. One end of the elastic bearing plate is fixedly connected to the mounting frame, and the other end is sandwiched between the support frame and the detection end of the weight sensor, forming a cantilever structure. The elastic bearing plate has good structural strength and stable elastic performance, which can not only bear the weight of the centrifuge itself, but also accurately transmit the feeding weight of the centrifuge to the weight sensor through its own elastic deformation, thereby realizing the function of accurate feeding weight detection. It effectively avoids the interference of the equipment's own weight on the feeding weight detection, improves the accuracy and stability of feeding weight detection, and reduces detection errors. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0020] Figure 1 This is an assembly diagram of the feed weight detection device for a centrifuge, the frame, and the centrifuge as described in this embodiment of the utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the weighing component described in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation position of the second elastic shock absorber relative to the centrifuge according to an embodiment of this utility model.

[0023] In the picture:

[0024] 100. Frame; 200. Centrifuge; 210. Housing; 220. Transmission system; 230. Main shaft bearing housing; 240. Rotor; 250. Feed pipe;

[0025] 1. Weighing assembly; 11. Mounting bracket; 12. Support frame; 13. Elastic bearing plate; 14. Weight sensor; 141. First rotating shaft; 142. Second rotating shaft; 15. First elastic shock absorber; 16. Adjusting pad; 2. Second elastic shock absorber. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0028] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For example, a direct connection refers to two parts or components being connected together without an intermediate component, while an indirect connection refers to two parts or components each being connected to at least one intermediate component, with the connection achieved through the intermediate component. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0030] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0031] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0032] In this utility model, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" of another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" of the first feature and the second feature include the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0033] like Figures 1-3As shown, this embodiment provides a feed weight detection device for a centrifuge. The centrifuge 200 includes a housing 210, and a transmission system 220, a main shaft bearing seat 230, a rotor 240, and a feed pipe 250 disposed within the housing 210. The rotor 240 is located outside the bearing support point and is cantilevered. The material enters the rotor 240 through the feed pipe 250. The transmission system 220 provides the power required for the rotor 240 to rotate, causing the rotor 240 to drive the internal material to rotate at high speed. The rotor 240 has openings in its cylinder wall, so that the liquid in the material is thrown out of the rotor 240, while the solid is trapped inside the rotor 240. Finally, the solid inside the rotor 240, i.e., the filter cake, is discharged through the unloading mechanism.

[0034] The feed weight detection device for a centrifuge provided in this embodiment includes a weighing component 1 and a shock-absorbing component. The two are elastically connected between the frame 100 and the housing 210 of the centrifuge 200. The shock-absorbing component is located at the feed end of the centrifuge 200, and the weighing component 1 is located at the end of the centrifuge 200 away from the feed end. The two share the weight of the equipment, which can reduce the load on the weighing component 1. The elastic support structure plays a shock-absorbing role, which helps to reduce damage to the centrifuge 200 and the weight sensor 14. On the other hand, when the feed weight changes, the elastic support structure allows the centrifuge 200 to make a small displacement in the vertical direction. This displacement acts on the detection end, thereby realizing real-time monitoring of the feed weight.

[0035] like Figure 2 As shown, the weighing component 1 includes a mounting frame 11, a support frame 12, an elastic bearing plate 13, and a weight sensor 14. The support frame 12 is fixedly connected to the centrifuge 200. The mounting frame 11 and the weight sensor 14 are installed on the frame 100 at intervals. One end of the elastic bearing plate 13 is fixedly connected to the mounting frame 11, and the other end is clamped between the support frame 12 and the detection end of the weight sensor 14, forming a cantilever structure. The elastic bearing plate 13 has good structural strength and stable elastic performance. It can not only bear the weight of the centrifuge 200, but also accurately transmit the feed weight of the centrifuge 200 to the weight sensor 14 through its own elastic deformation, thereby realizing the function of accurate detection of feed weight. It effectively avoids the interference of the equipment's own weight on the detection of feed weight, improves the accuracy and stability of feed weight detection, reduces detection error, and avoids problems such as equipment overload operation or increased energy consumption due to misjudgment of feed amount. It further improves the operational reliability of the automated control system of the centrifuge 200, reduces industrial production energy consumption, and improves overall production efficiency.

[0036] In some optional embodiments, the weighing assembly 1 further includes a first elastic damper 15, which is disposed between the support frame 12 and the elastic bearing plate 13 to filter the influence of the centrifuge 200's operating vibration on the weight sensor 14, thereby further improving the reliability of the feed weight detection.

[0037] Among them, the first elastic shock absorber 15 is a rubber shock absorber, which has a small deformation and high stability. It can reduce the positional displacement of the support frame 12 caused by the deformation of the shock absorber, which is conducive to improving the accuracy of the test results.

[0038] In some optional embodiments, the weighing assembly 1 further includes an adjusting shim 16, which is disposed between the elastic bearing plate 13 and the first elastic damper 15 to compensate for installation errors. By reasonably setting the height of the adjusting shim 16, the deformation of the elastic bearing plate 13 is adjusted so that the elastic bearing plate 13 fully supports the weight of the centrifuge 200, thereby avoiding interference from the weight of the equipment on the detection of the feed weight.

[0039] In some optional embodiments, the elastic bearing plate 13 is a spring steel plate. Spring steel is typically made of specific materials, such as alloy steels like 65Mn and 60Si2Mn, and is manufactured through heat treatment processes such as cold rolling, stretching, cold bending, quenching, and tempering. These processes give the spring steel plate more stable elastic properties, higher strength, and fatigue resistance, enabling it to maintain stable performance during long-term elastic deformation, thereby accurately transmitting and responding to changes in the feed weight.

[0040] In some optional embodiments, the mounting end of the weight sensor 14 is rotatably connected to the frame 100 about a first rotating shaft 141, and the detection end of the weight sensor 14 is rotatably connected to the elastic support plate 13 about a second rotating shaft 142. Both the first rotating shaft 141 and the second rotating shaft 142 extend horizontally and are arranged at an angle. This design can adapt to the small deformation trajectory of the elastic support plate 13 when bearing the weight of the centrifuge 200, allowing the sensor to adaptively adjust its angle according to the deformation of the support plate. This ensures that the weight sensor 14 can always bear the force along its own sensitive axis, effectively avoiding lateral force interference caused by additional deformations such as bending and torsion of the elastic support plate 13 due to the cantilever structure, avoiding detection deviation caused by the sensor receiving composite forces, and improving the accuracy of weight detection.

[0041] Specifically, the mounting end and the detection end of the weight sensor 14 can be rotatably connected by, but not limited to, a hinge bolt.

[0042] In some optional embodiments, the mounting frame 11 is a multi-faceted enclosed shell structure. This multi-faceted enclosed shell structure enhances the bending resistance of the mounting frame 11. Even when subjected to horizontal vibrations or lateral forces, the shell remains stable due to its shape, reducing the transmission of additional stress caused by structural swaying to the weighing assembly 1. Furthermore, the multi-faceted enclosure improves the structure's fatigue resistance. Under long-term cyclic vibration, the uniform stress distribution slows down material fatigue damage, extending the service life of the mounting frame 11 and the support frame 12. This provides a durable and stable support foundation for the entire weighing assembly 1, ensuring the long-term reliability of weighing accuracy.

[0043] Similarly, the support frame 12 is a multi-faceted enclosed shell structure, which can improve the bending resistance and fatigue resistance of the support frame 12, extend its service life, and ensure the long-term reliability of weighing accuracy, which will not be elaborated here.

[0044] like Figure 3 As shown, in some optional embodiments, the shock absorption assembly includes at least two second elastic shock absorbers 2, which are arranged at intervals along the width direction of the centrifuge 200, forming a three-point support structure with the weighing assembly 1. This ensures stable and reliable support for the centrifuge 200, ensures that the centrifuge 200 maintains a stable posture during operation, and reduces interference with the weighing assembly 1 due to equipment offset.

[0045] In some optional embodiments, the second elastic damper 2 is an elastic damping damper. The damping force of the elastic damping damper can be adapted to the vibration intensity under different working conditions. By adjusting the damping, the influence of vibration on the weighing assembly 1 is reduced, the additional deformation of the elastic bearing plate 13 is reduced, and the weighing system is always in a stable stress state. This provides a more reliable environment for the detection of feed weight and further improves the accuracy and stability of the overall weighing data.

[0046] In some optional embodiments, the upper end of the second elastic damper 2 is provided with a first thread for connection to the centrifuge 200, and the lower end of the second elastic damper 2 is provided with a second thread for connection to the frame 100. The first thread and the second thread are arranged at intervals so that the centrifuge 200 and the frame 100 are not rigidly connected. This allows the elastic damping damper to fully exert its buffering and energy dissipation functions. During vibration transmission, there is no need to overcome the constraints of the rigid connection. The damper can deform freely and quickly attenuate the vibration through damping, reducing the interference of vibration on the detection signal of the weight sensor 14 and ensuring the accuracy and stability of the feed weight detection.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for detecting the feed weight of a centrifuge, characterized in that, The system includes a weighing component (1) and a shock-absorbing component, which are elastically connected between the frame (100) and the centrifuge (200). The shock-absorbing component is located at the feed end of the centrifuge (200), and the weighing component (1) is located at the end of the centrifuge (200) away from the feed end. The weighing component (1) includes a mounting frame (11), a support frame (12), an elastic bearing plate (13), and a weight sensor (14). The support frame (12) is fixedly connected to the centrifuge (200). The mounting frame (11) and the weight sensor (14) are installed on the frame (100) at intervals. One end of the elastic bearing plate (13) is fixedly connected to the mounting frame (11), and the other end is clamped between the support frame (12) and the detection end of the weight sensor (14).

2. The feed weight detection device for a centrifuge according to claim 1, characterized in that, The weighing assembly (1) further includes a first elastic shock absorber (15), which is disposed between the support frame (12) and the elastic bearing plate (13).

3. The feed weight detection device for a centrifuge according to claim 2, characterized in that, The first elastic shock absorber (15) is a rubber shock absorber.

4. The feed weight detection device for a centrifuge according to claim 2, characterized in that, The weighing assembly (1) also includes an adjusting pad (16), which is disposed between the elastic bearing plate (13) and the first elastic shock absorber (15).

5. The feed weight detection device for a centrifuge according to claim 1, characterized in that, The elastic bearing plate (13) is a spring steel plate.

6. The feed weight detection device for a centrifuge according to claim 1, characterized in that, The mounting end of the weight sensor (14) is rotatably connected to the frame (100) around the first rotating shaft (141), and the detection end of the weight sensor (14) is rotatably connected to the elastic bearing plate (13) around the second rotating shaft (142). The first rotating shaft (141) and the second rotating shaft (142) both extend in the horizontal direction and are arranged at an angle.

7. The feed weight detection device for a centrifuge according to claim 1, characterized in that, The shock absorption assembly includes at least two second elastic shock absorbers (2), which are spaced apart along the width direction of the centrifuge (200).

8. The feed weight detection device for a centrifuge according to claim 7, characterized in that, The second elastic damper (2) is an elastic damping damper.

9. The feed weight detection device for a centrifuge according to claim 7, characterized in that, The upper end of the second elastic shock absorber (2) is provided with a first thread for connecting to the centrifuge (200), and the lower end of the second elastic shock absorber (2) is provided with a second thread for connecting to the frame (100). The first thread and the second thread are arranged at intervals so that the centrifuge (200) and the frame (100) are not rigidly connected.

10. The feed weight detection device for a centrifuge according to any one of claims 1 to 9, characterized in that, The mounting frame (11) and / or the support frame (12) are multi-faceted enclosed shell structures.

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