A type of suspended belt scale

Abstract

This invention provides a suspended belt scale, relating to the field of weighing equipment technology. The suspended belt scale includes a base, a hoisting mechanism, a support frame, and multiple load cells. The support frame is configured to support the belt, and both ends of the support frame along the width direction of the belt are movably connected to at least two hoisting mechanisms. The load cells are fixed to the base and correspondingly arranged with the hoisting mechanisms. The multiple load cells are each hoisted by their respective hoisting mechanisms, which suspend the support frame. This suspended belt scale improves the measurement accuracy and reliability of belt scales.

Description

Technical Field

[0001] This utility model relates to the field of belt scale technology, and more specifically, to a suspended belt scale. Background Technology

[0002] Currently, when belt conveyors are in operation, belt scales are needed to continuously measure the flow rate of bulk materials on the belt conveyor. The working principle is based on the real-time detection and integration of belt running speed and material weight. The core is to calculate the instantaneous flow rate and cumulative flow rate of the material by multiplying the material weight per unit length of belt (i.e., "linear load") by the belt running speed.

[0003] However, in related technologies, the load cells of belt scales directly support the belt of the belt conveyor. During transport, the belt may sway due to uneven material loading, causing it to detach from the load cells. This swaying affects the weighing accuracy of the load cells, and consequently, the accuracy of flow measurement. Utility Model Content

[0004] The problem this invention solves is how to effectively improve the weighing accuracy of belt scales.

[0005] This utility model provides a suspended belt scale, including a base, a hoisting mechanism, a support frame, and multiple load cells; the support frame is configured to support the belt, and both ends of the support frame along the width direction of the belt are respectively movably connected to at least two of the hoisting mechanisms; the load cells are fixed to the base and are correspondingly arranged with the hoisting mechanisms; the multiple load cells are respectively hoisted by the corresponding hoisting mechanisms to support the support frame.

[0006] Optionally, the support frame includes a first connecting plate, a second connecting plate, and a roller support; the first connecting plate and the second connecting plate are arranged opposite to each other and spaced apart, and both the first connecting plate and the second connecting plate are connected to at least two of the hoisting mechanisms; at least one roller support is connected between the first connecting plate and the second connecting plate.

[0007] Optionally, the hoisting mechanism includes a boom, the top end of which is detachably connected to the force-bearing end of the weighing sensor, and the bottom end of which is movably connected to the first connecting plate or the second connecting plate.

[0008] Optionally, the idler support has a stepped structure at one end facing the first connecting plate and at the other end facing the second connecting plate, and the two ends of the idler support are respectively supported by the stepped structure on the first connecting plate and the second connecting plate.

[0009] Optionally, there are multiple idler supports, which are spaced apart along the running direction of the belt.

[0010] Optionally, the suspended belt scale further includes a limiting structure that connects the base and the support frame and is configured to limit the sway of the support frame.

[0011] Optionally, the limiting structure includes a first limiting rod and a first limiting plate; the first limiting plate is disposed on the base and has a first through hole; the first limiting rod extends along the running direction of the belt and passes through the first through hole, and the first limiting rod can move in the first through hole; the two ends of the first limiting rod are respectively connected to two adjacent idler roller supports.

[0012] Optionally, the limiting structure further includes a second limiting rod and a second limiting plate; the second limiting plate is disposed on the idler support and has a second through hole; the second limiting rod extends perpendicular to the belt running direction, passes through the second through hole, and is movable in the second through hole; both ends of the second limiting rod are respectively connected to the base.

[0013] Optionally, the base includes a base frame and a support column, with the support column and the weighing sensor correspondingly arranged; the bottom end of the support column is connected to the base frame, and the top end of the support column is connected to the corresponding weighing sensor.

[0014] Optionally, the base frame is a frame structure.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] The support frame is connected to the load cells via multiple lifting mechanisms. This suspended connection method allows the support frame to evenly distribute the weight along the width of the belt, avoiding localized weight concentration caused by uneven material loading, thus reducing the impact of belt swaying on the load cells. When material passes over the belt, the suspended support at the bottom can sway freely within a certain range, either along or perpendicular to the belt's running direction. This design ensures that within a certain range of swaying, the belt will not slip off, and all weight is accurately transmitted to the load cells for precise measurement. Since the load cells no longer directly support the belt but are indirectly supported by the lifting mechanisms, the stability and accuracy of the weighing process are further improved. Therefore, this suspended belt scale can more accurately measure the flow rate of bulk materials on the belt, improving the measurement accuracy and reliability of the belt scale. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the suspended belt scale according to an embodiment of the present utility model;

[0018] Figure 2 This is a diagram showing the usage state of the suspended belt scale according to an embodiment of the present invention;

[0019] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 for Figure 1 A magnified view of a section at point B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Base; 101. Base frame; 102. Support column; 200. Lifting mechanism; 201. Lifting rod; 202. Connecting rod; 300. Support frame; 301. First connecting plate; 302. Second connecting plate; 303. Roller support; 3031. Step structure; 400. Weighing sensor; 500. First limiting rod; 600. First limiting plate; 601. First through hole; 700. Second limiting rod; 800. Second limiting plate; 801. Second through hole; 900. Belt. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] In the description of this utility model, it should be understood that the terms "height", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0026] The suspended belt scale of this utility model includes a base 100, a hoisting mechanism 200, a support frame 300, and multiple load cells 400. The support frame 300 is configured to support a belt 900, and both ends of the support frame 300 along the width direction of the belt 900 are movably connected to two or more hoisting mechanisms 200 respectively. The load cells 400 are fixed to the base 100 and are correspondingly arranged with the hoisting mechanisms 200. The multiple load cells 400 are respectively hoisted by the support frame 300 through the corresponding hoisting mechanisms 200.

[0027] It should be understood that the width direction of belt 900 can also be regarded as the direction perpendicular to the running direction of belt 900.

[0028] Specifically, the structural form of the base 100 and the support frame 300 is not specifically limited and depends on actual needs. For example... Figure 1 , 2 As shown, the support frame 300 is connected to two hoisting mechanisms 200 at both ends along the width direction of the belt 900; there are four load cells 400, which are fixed at the four corners of the top of the base 100 respectively; the four load cells 400 are hoisted by the corresponding hoisting mechanisms 200 to suspend the support frame 300, so that the support frame 300 is suspended in the air, that is, the support frame 300 and the base 100 do not bear any force in the vertical direction.

[0029] In this embodiment, the support frame 300 is connected to the load cell 400 via multiple lifting mechanisms 200. This suspended connection method allows the support frame 300 to evenly distribute the weight along the width of the belt 900, avoiding localized weight concentration caused by uneven material loading, thereby reducing the impact of belt 900 swaying on the load cell 400. When material passes over the belt 900, the suspended support at the bottom can sway freely within a certain range along or perpendicular to the belt 900's running direction. This design ensures that within a certain range of swaying, the belt 900 will not slip off, and all weight can be accurately transferred to the load cell 400, thus achieving precise measurement. Since the load cell 400 no longer directly supports the belt 900 but indirectly supports it through the lifting mechanisms 200, the stability and accuracy of the weighing process are further improved. Therefore, this suspended belt scale can more accurately measure the flow rate of bulk material on the belt 900, improving the measurement accuracy and reliability of the belt scale.

[0030] Optionally, the support frame 300 includes a first connecting plate 301, a second connecting plate 302, and a roller support 303; the first connecting plate 301 and the second connecting plate 302 are arranged opposite to each other and spaced apart, and both the first connecting plate 301 and the second connecting plate 302 are connected to at least two hoisting mechanisms 200; at least one roller support 303 is connected between the first connecting plate 301 and the second connecting plate 302.

[0031] It should be understood that the belt 900 is generally V-shaped, and the idler support 303 is provided with a V-shaped groove that matches the shape of the belt 900. Therefore, when the belt 900 shakes due to impact, it can exert a force on the idler support 303.

[0032] Specifically, such as Figure 1 As shown, the first connecting plate 301 and the second connecting plate 302 are arranged parallel to each other and spaced apart along a direction perpendicular to the running direction of the belt 900. A hoisting mechanism 200 is connected to each end of the first connecting plate 301 along the running direction of the belt 900, and a hoisting mechanism 200 is also connected to each end of the second connecting plate 302 along the running direction of the belt 900. Two idler roller supports 303 are arranged between the first connecting plate 301 and the second connecting plate 302 and are connected to the first connecting plate 301 and the second connecting plate 302 respectively.

[0033] In this optional embodiment, since both the first connecting plate 301 and the second connecting plate 302 are connected to at least two lifting mechanisms 200, this structure ensures that the support frame 300 is subjected to more even stress. The idler roller support 303 further enhances the stability of the support frame 300, enabling the belt 900 to remain stable during operation and reducing weight measurement errors caused by uneven material loading or vibration of the belt 900 itself. This design not only improves the weighing accuracy of the belt 900 scale.

[0034] Optionally, the hoisting mechanism 200 includes a hoisting rod 201, the top end of which is detachably connected to the force-bearing end of the load cell 400, and the bottom end of which is movably connected to the first connecting plate 301 or the second connecting plate 302.

[0035] Specifically, the shape of the boom 201 is not specifically limited and depends on actual needs. For example... Figure 1 As shown, the top end of the boom 201 is detachably connected to the force-bearing end of the load cell 400. The connection method between the two includes, but is not limited to, snap-fit ​​or threaded connection. The first connecting plate 301 or the second connecting plate 302 is provided with a pin hole, and the bottom end of the boom 201 is provided with a U-shaped groove for the first connecting plate 301 or the second connecting plate 302 to be inserted. The boom 201 is also provided with a pin hole that passes through the U-shaped groove. When the pin hole of the boom 201 is aligned with the pin hole of the first connecting plate 301 or the second connecting plate 302, the two can be fixed by inserting a pin 202. The size of the pin hole on the first connecting plate 301 or the second connecting plate 302 is larger than the size of the pin 202, which allows the first connecting plate 301 or the second connecting plate 302 to sway relative to the boom 201.

[0036] In this optional embodiment, the top end of the boom 201 is detachably connected to the force-bearing end of the load cell 400, facilitating installation and disassembly of both. This allows for quick replacement or adjustment of the load cell 400 when needed, improving the flexibility and maintainability of the equipment. Simultaneously, the bottom end of the boom 201 is movably connected to either the first connecting plate 301 or the second connecting plate 302, allowing the support frame 300 to sway with the belt 900, resulting in more accurate and reliable measurement results.

[0037] Furthermore, the boom 201 is an adjustable boom 201, which can select the suspension height of the support frame 300 according to the working conditions.

[0038] Optionally, the roller support 303 is provided with a stepped structure 3031 at one end facing the first connecting plate 301 and at the other end facing the second connecting plate 302. The two ends of the roller support 303 are respectively supported by the stepped structure 3031 on the first connecting plate 301 and the second connecting plate 302.

[0039] Specifically, such as Figure 1As shown, the idler support 303 has a stepped structure 3031 at one end facing the first connecting plate 301 (that is, at the end perpendicular to the running direction of the belt 900); the idler support 303 also has a stepped structure 3031 at the other end facing the second connecting plate 302 (that is, at the other end perpendicular to the running direction of the belt 900); the two ends of the idler support 303 are supported on the first connecting plate 301 and the second connecting plate 302 respectively through the stepped structure 3031, and are welded and fixed.

[0040] In this optional embodiment, the design of the stepped structure 3031 on the roller support 303 allows the roller support 303 to be stably supported on the first connecting plate 301 and the second connecting plate 302. This not only facilitates the subsequent welding and fixing of the roller support 303 to the first connecting plate 301 and the second connecting plate 302, but also increases the connection strength between the two, reducing the possibility of breakage at the connection between the roller support 303 and the first connecting plate 301 or the second connecting plate 302.

[0041] Optionally, there are multiple idler supports 303, which are spaced apart along the running direction of the belt 900.

[0042] Specifically, the number of idler roller supports 303 can be two, three, or four, etc., without limitation, depending on actual needs. Figure 1 As shown, there are two idler supports 303, which are spaced apart along the running direction of the belt 900 to support the belt 900.

[0043] In this optional embodiment, by setting multiple idler roller supports 303 and arranging them at intervals along the running direction of the belt 900, this design ensures that the belt 900 receives uniform and stable support throughout its operation. The interval arrangement of the multiple idler roller supports 303 effectively distributes the weight of the material on the belt 900, preventing the belt 900 from sagging or deforming due to localized weight concentration, thereby reducing wear and damage to the belt 900. Furthermore, this uniformly distributed support method can also reduce the impact of uneven or unbalanced material loading on the weighing accuracy of the belt 900 scale, improving weighing accuracy and reliability.

[0044] Optionally, the suspended belt scale also includes a limiting structure that connects the base 100 and the support frame 300 and is configured to limit the sway of the support frame 300.

[0045] In this optional embodiment, by setting a limiting structure in the suspended belt scale, excessive swaying of the support frame 300 during material conveying can be effectively controlled, ensuring that the support frame 300 moves within a certain safe range. This not only avoids problems such as belt 900 detachment or damage to the weighing sensor 400 caused by excessive swaying, but also further improves the stability and accuracy of the weighing process. The setting of the limiting structure provides additional safety assurance for the normal operation of the belt scale 900, enhances the adaptability and reliability of the equipment under complex working conditions, and thus ensures the stability and measurement accuracy of the belt scale during long-term use.

[0046] Optionally, the limiting structure includes a first limiting rod 500 and a first limiting plate 600; the first limiting plate 600 is disposed on the base 100 and has a first through hole 601; the first limiting rod 500 extends along the running direction of the belt 900 and passes through the first through hole 601, and the first limiting rod 500 can move in the first through hole 601; the two ends of the first limiting rod 500 are respectively connected to two adjacent idler roller supports 303.

[0047] Specifically, the shapes of the first limiting rod 500 and the first through hole 601 are not specifically limited and are determined according to actual needs. For example... Figure 3 As shown, the first limiting rod 500 is a round rod and extends along the running direction of the belt 900; the first limiting plate 600 is disposed on the base 100 and has a first through hole 601; the first limiting rod 500 passes through the first through hole 601 and can move in the first through hole 601; the two ends of the first limiting rod 500 are respectively connected to two adjacent idler roller supports 303, and the connection method includes but is not limited to bolt connection or snap-fit.

[0048] In this optional embodiment, when the support frame 300 sways, the first limiting rod 500 can only move within the range of the first through hole 601, thereby limiting the range of movement of the first limiting rod 500. Since both ends of the first limiting rod 500 are connected to the two idler roller supports 303 respectively, this connection method allows the movement restriction of the first limiting rod 500 to be effectively transmitted to the entire support frame 300, thereby limiting the sway amplitude of the entire support frame 300 in the direction perpendicular to the running direction of the belt 900. This design not only ensures the stability of the support frame 300 and prevents excessive swaying caused by material imbalance or belt 900 vibration, but also improves the weighing accuracy and reliability of the belt 900 scale during operation.

[0049] Optionally, the limiting structure further includes a second limiting rod 700 and a second limiting plate 800; the second limiting plate 800 is disposed on the idler roller support 303 and has a second through hole 801; the second limiting rod 700 extends perpendicular to the running direction of the belt 900, the second limiting rod 700 passes through the second through hole 801, and the second limiting rod 700 can move in the second through hole 801; both ends of the second limiting rod 700 are respectively connected to the base 100.

[0050] Specifically, the shapes of the second limiting rod 700 and the second through hole 801 are not specifically limited and are determined according to actual needs. For example... Figure 4 As shown, the second limiting rod 700 is a round rod and extends in a direction perpendicular to the running direction of the belt 900; the first limiting plate 600 is disposed on the base 100 and has a second through hole 801; the second limiting rod 700 passes through the second through hole 801 and can move in the second through hole 801; the two ends of the second limiting rod 700 are respectively connected to the base 100, and the connection method includes but is not limited to bolt connection or snap-fit ​​connection.

[0051] In this optional embodiment, when the support frame 300 sways, the second limiting rod 700 can only move within the range of the second through hole 801, thereby limiting the range of movement of the second limiting rod 700. Since both ends of the second limiting rod 700 are connected to the base 100, this connection method allows the movement restriction of the second limiting rod 700 to be effectively transmitted to the entire support frame 300, thereby limiting the sway amplitude of the entire support frame 300 along the running direction parallel to the belt 900. Combined with the aforementioned structure of the first limiting rod 500 and the first limiting plate 600, the weighing accuracy and reliability of the belt 900 scale during operation are further improved.

[0052] Optionally, the base 100 includes a base frame 101 and a support column 102, with the support column 102 and the load cell 400 correspondingly arranged; the bottom end of the support column 102 is connected to the base frame 101, and the top end of the support column 102 is connected to the corresponding load cell 400.

[0053] Specifically, such as Figure 1 As shown, the base 100 includes a base frame 101 and four support columns 102; the base frame 101 is a frame structure, and the four support columns 102 are vertically arranged at the four corners of the base frame 101. The bottom end of the support column 102 is connected to the base frame 101, and the connection method between the two includes, but is not limited to, welding or bolt connection; the top end of the support column 102 is connected to the corresponding weighing sensor 400, and the connection method between the two includes, but is not limited to, bolt connection or snap-fit ​​connection.

[0054] In this optional embodiment, the bottom end of the support column 102 is connected to the base frame 101, and the top end is connected to the corresponding load cell 400. This structure provides a stable support foundation for the load cell 400. The base frame 101, as the basic structure of the entire base 100, can bear and evenly distribute the weight from the support column 102 and the load cell 400, ensuring the stability of the entire belt scale 900. The support column 102 serves to firmly fix the load cell 400 to the base frame 101.

[0055] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A suspended belt scale, characterized in that, The system includes a base (100), a hoisting mechanism (200), a support frame (300), and multiple load cells (400). The support frame (300) is configured to support a belt (900), and both ends of the support frame (300) along the width direction of the belt (900) are movably connected to at least two of the hoisting mechanisms (200). The load cells (400) are fixed to the base (100) and are correspondingly arranged with the hoisting mechanisms (200). The multiple load cells (400) are respectively hoisted by the corresponding hoisting mechanisms (200) to lift the support frame (300).

2. The suspended belt scale according to claim 1, characterized in that, The support frame (300) includes a first connecting plate (301), a second connecting plate (302), and a roller support (303); the first connecting plate (301) and the second connecting plate (302) are arranged opposite to each other and spaced apart, and both the first connecting plate (301) and the second connecting plate (302) are connected to at least two of the hoisting mechanisms (200); at least one roller support (303) is connected between the first connecting plate (301) and the second connecting plate (302).

3. The suspended belt scale according to claim 2, characterized in that, The hoisting mechanism (200) includes a hoisting rod (201), the top end of which is detachably connected to the force-bearing end of the weighing sensor (400), and the bottom end of which is movably connected to the first connecting plate (301) or the second connecting plate (302).

4. The suspended belt scale according to claim 2, characterized in that, The roller support (303) is provided with a stepped structure (3031) at one end facing the first connecting plate (301) and at the other end facing the second connecting plate (302). The two ends of the roller support (303) are respectively supported on the first connecting plate (301) and the second connecting plate (302) through the stepped structure (3031).

5. The suspended belt scale according to claim 2, characterized in that, The idler support (303) is a plurality of such supports (303) and the plurality of such supports (303) are spaced apart along the running direction of the belt (900).

6. The suspended belt scale according to claim 5, characterized in that, It also includes a limiting structure that connects the base (100) and the support frame (300) and is configured to limit the sway of the support frame (300).

7. The suspended belt scale according to claim 6, characterized in that, The limiting structure includes a first limiting rod (500) and a first limiting plate (600); the first limiting plate (600) is disposed on the base (100) and has a first through hole (601); the first limiting rod (500) extends along the running direction of the belt (900) and passes through the first through hole (601), and the first limiting rod (500) can move in the first through hole (601); the two ends of the first limiting rod (500) are respectively connected to two adjacent idler roller supports (303).

8. The suspended belt scale according to claim 7, characterized in that, The limiting structure further includes a second limiting rod (700) and a second limiting plate (800); the second limiting plate (800) is disposed on the idler roller support (303) and has a second through hole (801); the second limiting rod (700) extends perpendicular to the running direction of the belt (900), the second limiting rod (700) passes through the second through hole (801), and the second limiting rod (700) can move in the second through hole (801); the two ends of the second limiting rod (700) are respectively connected to the base (100).

9. The suspended belt scale according to claim 1, characterized in that, The base (100) includes a base frame (101) and a support column (102), the support column (102) and the weighing sensor (400) are respectively arranged; the bottom end of the support column (102) is connected to the base frame (101), and the top end of the support column (102) is connected to the corresponding weighing sensor (400).

10. The suspended belt scale according to claim 9, characterized in that, The base frame (101) is a frame structure.

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