A sprocket with counterweights

Abstract

This invention provides a sprocket with a counterweight, comprising a sprocket mounted on a bearing, a counterweight mounting hole on the side of the sprocket into which a bolt is inserted, a counterweight plate on the rear side of the sprocket, and the counterweight plate mounted on the bolt. The bolt secures the counterweight plate to the sprocket, allowing it to rotate with the sprocket. The number of counterweight plates is at least one set and can be increased or decreased as needed. A scraper is provided on the inner side of the counterweight plate near the sprocket, with the scraper positioned parallel to the root of the sprocket teeth. This highly integrates the counterweight function into the sprocket body, eliminating the need for an external, independent counterweight system, significantly saving equipment space and cost. The integrated counterweight and sprocket form a single unit, avoiding the wobbling and swaying that can occur with traditional counterweight devices, resulting in more stable and reliable transmission and balance, and reducing operating noise and vibration.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment, and more particularly to a sprocket with a counterweight. Background Technology

[0002] In equipment such as plate chain elevators, a tensioning counterweight system is required to ensure the tension of the traction chain. Traditional counterweight systems typically consist of a counterweight box, a guide device, and a tensioning screw, which suffers from drawbacks such as large space occupation, complex structure, high cost, and poor stability. Currently, when using sprockets with counterweights, impurities from the conveyor belt easily fall into the tooth roots, causing sprocket malfunctions. Cleaning is currently only possible manually, which is inefficient. For example, published patent 2015108979448 discloses a sprocket that combines a counterweight plate with the sprocket, but this structure still cannot solve the problem of impurities remaining at the tooth roots. Therefore, addressing the current shortcomings of sprockets—large space occupation, complex structure, high cost, poor stability, and the problem of impurities easily remaining at the tooth roots—is particularly important. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a sprocket with a counterweight, which integrates the counterweight function into the sprocket body, thereby eliminating the need for an external, independent counterweight system, significantly saving equipment space and cost. At the same time, the scraper removes impurities remaining at the root of the sprocket teeth, solving the problems of large space occupation, complex structure, high cost, poor stability, and easy residue of impurities at the tooth root of current sprockets.

[0004] This invention provides a counterweight sprocket, comprising a sprocket mounted on a bearing, a counterweight mounting hole on the side of the sprocket, a bolt inserted into the counterweight mounting hole, a counterweight plate on the rear side of the sprocket, the counterweight plate being mounted on the bolt and fixed to the sprocket by the bolt, so that the counterweight plate rotates with the sprocket, the number of counterweight plates is at least one set, and can be increased or decreased according to usage needs, a scraper plate is provided on the inner side of the counterweight plate near the sprocket, the position of the scraper plate being parallel to the sprocket tooth root position.

[0005] A further improvement is made in that: a magnet is provided inside the outer edge of the counterweight plate, and a Hall switch is provided at the corresponding position of the frame on which the sprocket is mounted. The rotation state of the magnet is detected by the Hall switch, thereby detecting whether the counterweight plate is spinning idly.

[0006] A further improvement is that a speed sensor is installed on the sprocket to monitor the rotation speed of the sprocket.

[0007] A further improvement is that the bolt is provided with a flat washer and a spring washer to protect the bolt.

[0008] A further improvement is that the counterweight plate is divided into upper and lower parts, and is distributed on the side of the sprocket with the bearing axis as the dividing line.

[0009] The beneficial effects of this invention are: The counterweight function is highly integrated into the sprocket body, thereby eliminating the need for an external, independent counterweight system, significantly saving equipment space and cost. The integrated counterweight and sprocket form one unit, avoiding the shaking and swaying that may occur with traditional counterweight devices, making transmission and balance more stable and reliable, and reducing operating noise and vibration. Furthermore, by adjusting the number of counterweight plates, the mass, center of gravity position, and balance state of the counterweight can be adjusted, offering high flexibility. Simultaneously, the scraper plate removes impurities remaining at the root of the sprocket teeth, extending the frequency of manual sprocket cleaning and reducing labor costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present invention.

[0011] Among them: 1-sprocket, 2-bearing, 3-counterweight mounting hole, 4-bolt, 5-counterweight plate, 6-scraper, 7-magnet block, 8-speed sensor. Detailed Implementation

[0012] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0013] like Figure 1 As shown, this embodiment provides a counterweight sprocket, including a sprocket 1, which is mounted on a bearing 2. A counterweight mounting hole 3 is provided on the side of the sprocket 1, and a bolt 4 is inserted into the counterweight mounting hole 3. A counterweight plate 5 is provided on the rear side of the sprocket 1, and the counterweight plate 5 is mounted on the bolt 4. The bolt 4 fixes the counterweight plate 5 to the sprocket 1, allowing the counterweight plate 5 to rotate with the sprocket 1. The number of counterweight plates 5 is at least one set, and can be increased or decreased as needed. A scraper plate 6 is provided on the inner side of the counterweight plate 5 near the sprocket 1, and the position of the scraper plate 6 is parallel to the tooth root position of the sprocket 1. A magnet 7 is provided inside the outer edge of the counterweight plate 5. A Hall effect switch is provided at the corresponding position on the frame where the sprocket 1 is mounted. The Hall effect switch detects the rotation state of the magnet 7, thereby detecting whether the counterweight plate 5 is spinning freely. A speed sensor 8 is provided on the sprocket 1 to monitor the rotation speed of the sprocket 1. Bolt 4 is equipped with flat washers and spring washers for protection. The counterweight plate 5 is divided into upper and lower parts, distributed on the side of the sprocket 1 with the axis of bearing 2 as the dividing line. On the end face of the sprocket 1, a ring-shaped array of counterweight mounting holes 3 is machined. Correspondingly, the counterweight plate 5 has a ring-shaped array of circular holes. The counterweight plate 5 is fixed to the sprocket 1 using bolts 4, flat washers, and spring washers. The number and thickness of the counterweight plate 5 can be configured according to actual needs.

[0014] By highly integrating the counterweight function into the sprocket body, the need for an external, independent counterweight system is eliminated, significantly saving equipment space and cost. The integrated counterweight and sprocket form a single unit, avoiding the swaying and swinging that can occur with traditional counterweight devices, resulting in more stable and reliable transmission and balance, and reducing operating noise and vibration. Furthermore, by adjusting the number of counterweight plates, the mass, center of gravity position, and balance state of the counterweight can be adjusted, offering high flexibility. Simultaneously, a scraper plate removes impurities remaining at the root of the sprocket teeth, extending the frequency of manual sprocket cleaning and reducing labor costs.

Claims

1. A counterweight sprocket, comprising a sprocket (1), the sprocket (1) being mounted on a bearing (2), a counterweight mounting hole (3) being provided on the side of the sprocket (1), a bolt (4) being inserted into the counterweight mounting hole (3), a counterweight plate (5) being provided on the rear side of the sprocket (1), the counterweight plate (5) being mounted on the bolt, and the counterweight plate (5) being fixed to the sprocket (1) by the bolt (4), so that the counterweight plate (5) rotates with the sprocket (1), characterized in that: The number of counterweight plates (5) is at least one set, and can be increased or decreased according to the needs of use. A scraper plate (6) is provided on the inner side of the counterweight plate (5) near the sprocket (1), and the position of the scraper plate (6) is parallel to the tooth root position of the sprocket (1).

2. A sprocket with counterweight as described in claim 1, characterized in that: A magnet (7) is provided inside the outer edge of the counterweight plate (5). A Hall switch is provided at the corresponding position of the frame on which the sprocket (1) is installed. The rotation state of the magnet (7) is detected by the Hall switch, thereby detecting whether the counterweight plate (5) is spinning idly.

3. A sprocket with counterweight as described in claim 1, characterized in that: The sprocket (1) is equipped with a speed sensor (8) to monitor the rotation speed of the sprocket (1).

4. A sprocket with counterweight as described in claim 1, characterized in that: The bolt (4) is provided with a flat washer and a spring washer to protect the bolt (4).

5. A sprocket with counterweight as described in claim 1 or 2, characterized in that: The counterweight plate (5) is divided into upper and lower parts, and is distributed on the side of the sprocket (1) with the axis of the bearing (2) as the dividing line.

Images