Dynamic weighing belt scale

Abstract

This utility model discloses a dynamic weighing belt scale, comprising a frame, main and auxiliary idlers at both ends of the frame, a conveyor belt mounted on the main and auxiliary idlers, a first weighing sensor corresponding to the conveyor belt, a geared motor for driving the main idlers, and a material rack mounted on the conveyor belt. The material rack includes a feed hopper and a frame body, which covers the conveyor belt to form a transport channel connecting the feed hopper to the outside. This utility model provides a dynamic weighing belt scale where, due to the constraint of the transport channel, the material is confined to a stable channel for transport, resulting in a more concentrated and uniform distribution, avoiding lateral movement or scattering of the material on the belt. This ensures a more stable material load passing through the weighing sensor area, significantly reducing signal fluctuations caused by uneven material distribution, thereby improving the accuracy and reliability of dynamic weighing.

Description

Technical Field

[0001] This application relates to the field of belt weighing technology, and more particularly to dynamic weighing belt weighing. Background Technology

[0002] When materials are conveyed on a belt, dust, spillage, or slippage can easily occur due to belt vibration, airflow, or material characteristics. This not only causes material loss and environmental pollution but also severely affects the detection accuracy of the weighing sensor, leading to unstable measurement results and large errors. Furthermore, the weighing area of ​​conventional belt scales is usually open or semi-open, lacking effective flow guidance and limiting structures. This makes it difficult to ensure that the material is evenly and concentratedly distributed as it passes through the weighing section, further exacerbating the instability of the weighing signal. Utility Model Content

[0003] To solve the above problems, this technical solution provides a dynamic weighing belt scale.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A dynamic weighing belt scale includes a frame, main idlers and auxiliary idlers at both ends of the frame, a conveyor belt on the main idlers and auxiliary idlers, a first weighing sensor corresponding to the conveyor belt, a geared motor for driving the main idlers, and a material rack on the conveyor belt.

[0006] The material rack includes a feed hopper and a frame body, which covers the conveyor belt to form a transport channel connecting the feed hopper to the outside.

[0007] The dynamic weighing belt scale described above also includes a second weighing sensor. The first weighing sensor and the second weighing sensor are spaced apart along the transport direction of the conveyor belt. The first weighing sensor and the second weighing sensor are fixed on the frame by a weighing sensor mounting bracket.

[0008] As described above, the dynamic weighing belt scale has a belt tensioner on its frame for adjusting the tension of the conveyor belt.

[0009] As described above, the dynamic weighing belt scale has an adjustment mechanism on its frame for adjusting the distance between the main idler roller and the auxiliary idler roller.

[0010] As described above, the dynamic weighing belt scale includes an adjustment seat on the frame, a sliding seat that slides with the adjustment seat, and a locking component for locking the position of the sliding seat. The auxiliary roller is disposed on the sliding seat and moves with the sliding seat.

[0011] As described above, in the dynamic weighing belt scale, the locking assembly includes a threaded rod and a first nut, a second nut, and a third nut disposed on the threaded rod. The end of the threaded rod passes through the adjusting seat and is connected to the sliding seat. The third nut is tightened to press against the sliding seat to restrict the rotation of the threaded rod relative to the third nut.

[0012] The second nut and the first nut are tightened toward each other to clamp onto the adjusting seat.

[0013] As described above, the dynamic weighing belt scale has an opening on the frame and a limiting plate for inserting into the opening.

[0014] As described above, in the dynamic weighing belt scale, the first weighing sensor and the second weighing sensor are in contact with the bottom surface of the conveyor belt.

[0015] The beneficial effects of this application are:

[0016] This invention provides a dynamic weighing belt scale. Due to the constraint of the transport channel, the material is confined to a stable channel for transport, resulting in a more concentrated and uniform distribution, avoiding lateral movement or scattering of the material on the belt. This ensures a more stable material load passing through the weighing sensor area, significantly reducing signal fluctuations caused by uneven material distribution, thereby improving the accuracy and reliability of dynamic weighing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 . Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The dynamic weighing belt scale includes a frame 1, a main idler roller 2 and an auxiliary idler roller 3 disposed at both ends of the frame 1, a conveyor belt 4 disposed on the main idler roller 2 and the auxiliary idler roller 3, a first weighing sensor 5 disposed corresponding to the conveyor belt 4, a reduction motor 51 for driving the main idler roller 2, and a material rack 6 disposed on the conveyor belt 4.

[0022] The material rack 6 includes a feeding hopper 61 and a frame 62, which covers the conveyor belt 4 to form a transport channel 63 connecting the feeding hopper 61 with the outside.

[0023] This invention provides a dynamic weighing belt scale. Due to the constraint of the transport channel, the material is confined to a stable channel for transport, resulting in a more concentrated and uniform distribution, avoiding lateral movement or scattering of the material on the belt. This ensures a more stable material load passing through the weighing sensor area, significantly reducing signal fluctuations caused by uneven material distribution, thereby improving the accuracy and reliability of dynamic weighing.

[0024] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, a second weighing sensor 7 is also included. The first weighing sensor 5 and the second weighing sensor 7 are spaced apart along the transport direction of the conveyor belt 4, and the first weighing sensor 5 and the second weighing sensor 7 are fixed to the frame 1 by a weighing sensor mounting bracket 8. This allows for two weighing samples of the material on the belt, effectively offsetting some random errors caused by belt vibration, tension changes, or instantaneous unevenness of the material through data complementarity or averaging, thereby further improving the weighing accuracy and reliability of the entire system. The mounting bracket ensures the stability of the sensor installation.

[0025] Furthermore, as a preferred embodiment of this solution and not a limitation, the frame 1 is equipped with a belt tensioner 9 for adjusting the tension of the conveyor belt 4. This allows for convenient adjustment of the conveyor belt tension, ensuring appropriate friction between the belt and the main and auxiliary idlers to prevent slippage. Stable belt tension is also fundamental for the weighing sensor to obtain accurate and stable readings, thus guaranteeing the long-term stability of the weighing results.

[0026] Furthermore, as a preferred embodiment of this solution and not a limitation, the frame 1 is provided with an adjustment mechanism 10 for adjusting the distance between the main idler roller 2 and the auxiliary idler roller 3. This allows for flexible adjustment of the center distance between the main and auxiliary idler rollers, thereby adapting to conveyor belts of different lengths or compensating for belt elongation deformation caused by long-term use, greatly improving the applicability and ease of maintenance of the equipment.

[0027] Furthermore, as a preferred embodiment of this solution and not a limitation, the adjustment mechanism 10 includes an adjustment seat 11 mounted on the frame 1, a sliding seat 12 slidably engaged with the adjustment seat 11, and a locking component 13 for locking the position of the sliding seat 12. The auxiliary idler roller 3 is mounted on the sliding seat 12 and moves with the sliding seat 12. This achieves linear and smooth adjustment of the auxiliary idler roller position, with a simple structure and convenient operation. The locking component ensures that the auxiliary idler roller can be firmly fixed after being adjusted to the required position, guaranteeing the stability of the equipment during operation.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the locking assembly 13 includes a threaded rod 131, and a first nut 132, a second nut 133 and a third nut 134 disposed on the threaded rod 131. The end of the threaded rod 131 passes through the adjusting seat 11 and is connected to the sliding seat 12. The third nut 134 is tightened to press against the sliding seat 12 to restrict the rotation of the threaded rod 131 relative to the third nut 134.

[0029] The second nut 133 and the first nut 132 are tightened towards each other to clamp onto the adjusting seat 11. This provides a simple, low-cost, and reliable locking solution. By tightening the third nut to press against the sliding seat, and then using the first and second nuts to tighten against each other on both sides of the adjusting seat to form a clamping force, the loosening of the threaded rod and displacement of the sliding seat can be effectively prevented, ensuring the positional accuracy after adjustment and the reliability of equipment operation.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation, the frame 62 is provided with an opening 64 and a limiting plate 65 for insertion into the opening 64. By adjusting the insertion depth of the limiting plate, the effective flow cross-section of the transport channel can be changed, thereby directly controlling the amount of material passing through the belt per unit time to adapt to different flow rates and material weighing requirements, thus enhancing the applicability of the equipment.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, the first weighing sensor 5 and the second weighing sensor 7 are in contact with the bottom surface of the conveyor belt 4. The weight of the material on the belt is directly transmitted to the sensors through the belt, reducing intermediate transmission links and improving the sensitivity and response speed of the weighing system.

[0032] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A dynamic weigh belt scale characterized by: Includes a frame (1), a main idler roller (2) and an auxiliary idler roller (3) located at both ends of the frame (1), a conveyor belt (4) located on the main idler roller (2) and the auxiliary idler roller (3), a first weighing sensor (5) located on the conveyor belt (4), a reduction motor (51) for driving the main idler roller (2), and a material rack (6) located on the conveyor belt (4); The material rack (6) includes a feeding hopper (61) and a frame (62), which covers the conveyor belt (4) to form a transport channel (63) connecting the feeding hopper (61) with the outside.

2. The dynamic weighing belt scale according to claim 1, characterized in that: It also includes a second weighing sensor (7), the first weighing sensor (5) and the second weighing sensor (7) are spaced apart along the transport direction of the conveyor belt (4), and the first weighing sensor (5) and the second weighing sensor (7) are fixed on the frame (1) by a weighing sensor mounting base (8).

3. The dynamic weighing belt scale according to claim 1, characterized in that: The frame (1) is provided with a belt tensioner (9) for adjusting the tension of the transport belt (4).

4. The dynamic weighing belt scale according to claim 1, characterized in that: The frame (1) is provided with an adjustment mechanism (10) for adjusting the distance between the main idler roller (2) and the auxiliary idler roller (3).

5. The dynamic weighing belt scale according to claim 4, characterized in that: The adjustment mechanism (10) includes an adjustment seat (11) disposed on the frame (1), a sliding seat (12) slidably engaged with the adjustment seat (11), and a locking component (13) for locking the position of the sliding seat (12). The auxiliary roller (3) is disposed on the sliding seat (12) and moves with the sliding seat (12).

6. The dynamic weighing belt scale according to claim 5, characterized in that: The locking assembly (13) includes a threaded rod (131), and a first nut (132), a second nut (133), and a third nut (134) disposed on the threaded rod (131). The end of the threaded rod (131) passes through the adjusting seat (11) and is connected to the sliding seat (12). The third nut (134) is tightened to press against the sliding seat (12) to restrict the threaded rod (131) from rotating relative to the third nut (134). The second nut (133) and the first nut (132) are tightened toward each other to clamp onto the adjusting seat (11).

7. The dynamic weighing belt scale according to claim 1, characterized in that: The frame (62) is provided with an opening (64) and a limiting plate (65) for inserting into the opening (64).

8. The dynamic weighing belt scale according to claim 2, characterized in that: The first weighing sensor (5) and the second weighing sensor (7) are in contact with the bottom surface of the conveyor belt (4).

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