Chain type conveying mechanism capable of preventing belt of salix saw from deviating
By using a chain conveyor mechanism and tension adjustment device, the problem of belt misalignment during the conveying of sand willows was solved, achieving stable conveying and extending the service life of the belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional belt conveyors are prone to deviation when conveying sand willow, which affects conveying efficiency, leads to increased belt wear, shortens service life, and may cause equipment failure.
A chain conveyor mechanism is adopted, which uses the first sprocket, the second sprocket and the chain to transmit power, providing stable support and constraint. Combined with a tension sensor and a threaded rod, the belt tension is adjusted to prevent deviation.
It effectively reduces belt misalignment, extends belt life, improves conveying efficiency, reduces equipment maintenance costs, and ensures stable production processes.
Smart Images

Figure CN224014602U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wood processing equipment, specifically relating to a chain conveyor mechanism for preventing the belt of a sand willow saw from running off-center. Background Technology
[0002] During the processing of sand willow, the sand willow needs to be transported to sawing equipment for cutting. Traditional belt conveyor mechanisms are prone to belt deviation when transporting sand willow due to its irregular shape and rough surface.
[0003] Belt misalignment not only affects conveying efficiency and reduces the continuity of processing, but may also cause accelerated belt wear, shorten belt life, increase equipment maintenance costs, and in severe cases, even lead to equipment failure and affect the entire production process. Utility Model Content
[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a chain conveyor mechanism for preventing the belt of a sand saw from running off-center is provided, including a power conveyor mechanism, a tensioning mechanism and a support frame;
[0005] The power transmission mechanism includes a motor, a reducer, a drive shaft, a drive roller, a driven shaft, and a driven roller. The power transmission mechanism also includes a first sprocket fixedly connected to the side surface of the drive shaft, a second sprocket fixedly connected to the side surface of the driven shaft, and a chain disposed on the first sprocket. A belt is disposed on the side surface of the drive roller.
[0006] The tensioning mechanism includes a shaft mounting connecting block, a vertical plate fixedly connected to the side surface of the upright and a threaded rod threadedly connected to the inner wall of the side of the vertical plate, a reinforcing rod fixedly connected to the side surface of the upright, a tension sensor fixedly connected to the upper surface of the reinforcing rod, a controller fixedly connected to the side surface of the upright, and a side retaining frame fixedly connected to the upper surface of the upright by bolts.
[0007] Through the above technical solution, this device uses a first sprocket, a second sprocket, and a chain to transmit power and drive the belt to rotate. The chain runs on both sides of the belt, providing relatively stable support and constraint. Due to the high strength and rigidity of the chain, the lateral movement of the belt during operation is restricted, allowing it to only move along the path specified by the chain, thereby effectively reducing the possibility of belt deviation. The belt tension is detected by a tension sensor. When the belt becomes loose or the tension is uneven, the belt tension can be adjusted by turning the threaded rod, restoring the belt to its normal tension and avoiding deviation caused by belt looseness.
[0008] The present invention is further configured such that a support leg is fixedly connected to the lower surface of the upright, and the side surface of the support leg is fixedly connected to the mounting plate.
[0009] The present invention is further configured such that the motor is fixedly connected to the mounting plate, and the reducer is fixedly connected to the mounting plate.
[0010] The mounting plate, as described above, is used to mount the motor and the reducer.
[0011] The present invention is further configured such that the output end of the motor is fixedly connected to the reducer, the output end of the reducer is fixedly connected to a sprocket one, the side surface of the sprocket one is meshed with a chain one, the side surface of the drive shaft is fixedly connected to a sprocket two, and the side surface of the sprocket two meshes with the chain one.
[0012] With the above technical solution, after the motor starts, it drives the reducer to rotate. When the reducer rotates, it drives the first sprocket to rotate. The first sprocket drives the first chain that meshes with it to rotate, which in turn causes the second sprocket to rotate, so that the power generated by the motor drives the drive shaft to rotate.
[0013] The present invention is further configured such that the side surface of the drive shaft 7 is rotatably connected to the upright, the side surface of the first sprocket meshes with the chain, and the side surface of the second sprocket meshes with the chain.
[0014] The present invention is further configured such that the side surface of the driven shaft is fixedly connected to the shaft mounting block by a bearing, and the shaft mounting block is located in the mounting hole.
[0015] The above technical solution allows for adjustment of the driven shaft position by changing the position of the shaft mounting block within the mounting hole, thereby adjusting the belt tension.
[0016] The present invention is further configured such that an L-shaped support plate is fixedly connected to the lower surface of the upright, and a groove is formed between the L-shaped support plate and the upright; a sliding rod is fixedly connected to the lower surface of the shaft mounting connecting block, and the sliding rod is located in the groove.
[0017] Through the above technical solution, the groove guides and limits the displacement of the slide rod.
[0018] The present invention is further configured such that a crossbar is fixedly connected to the side surface of the support leg, and one end of the threaded bar is fixedly connected to the shaft mounting block.
[0019] The beneficial effects of this utility model are as follows:
[0020] This device uses a first sprocket, a second sprocket, and a chain to transmit power and drive the belt to rotate. The chain runs on both sides of the belt, providing relatively stable support and constraint. Due to the high strength and rigidity of the chain, the lateral movement of the belt during operation is restricted, ensuring that it can only move along the path specified by the chain, thereby effectively reducing the possibility of belt deviation. The belt tension is detected by a tension sensor. When the belt becomes loose or the tension is uneven, the belt tension can be adjusted by turning the threaded rod, restoring the belt to its normal tension and preventing deviation caused by belt looseness. Attached Figure Description
[0021] Figure 1 This is a first-view structural diagram of a chain conveyor mechanism for preventing belt misalignment of a sand saw according to this utility model.
[0022] Figure 2 This is a second-view structural diagram of a chain conveyor mechanism for preventing belt misalignment of a sand saw according to this utility model;
[0023] Figure 3 This is a partial structural schematic diagram of a chain conveyor mechanism for preventing belt misalignment of a sand saw according to this utility model.
[0024] Figure 4 This is another structural schematic diagram of a chain conveyor mechanism for preventing belt misalignment of a sand saw in this utility model.
[0025] Figure 5 yes Figure 1 Enlarged view of point A in the middle.
[0026] Reference numerals: 1. Upright frame; 2. Support leg; 3. Mounting plate; 4. Crossbar; 5. Motor; 6. Reducer; 7. Drive shaft; 8. Drive roller; 9. Belt; 10. Driven shaft; 11. Driven roller; 13. First sprocket; 14. Chain; 15. Second sprocket; 16. Mounting hole; 17. Shaft mounting block; 18. Slide bar; 19. L-shaped support plate; 20. Upright plate; 21. Threaded rod; 22. Side guard frame; 23. Reinforcing rod; 24. Tension sensor; 25. Controller. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages 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.
[0028] like Figures 1-5As shown, a chain conveyor mechanism for preventing the belt of a sand saw from running off-center in this embodiment includes a power conveyor mechanism, a tensioning mechanism and a frame 1. The lower surface of the frame 1 is fixedly connected to a support leg 2, and the side surface of the support leg 2 is fixedly connected to a mounting plate 3. The side surface of the frame 1 is provided with a plurality of mounting holes 16.
[0029] The power transmission mechanism includes a motor 5, a reducer 6, a drive shaft 7, a drive roller 8, a driven shaft 10, and a driven roller 11. The power transmission mechanism also includes a first sprocket 13 fixedly connected to the side surface of the drive shaft 7, a second sprocket 15 fixedly connected to the side surface of the driven shaft 10, and a chain 14 mounted on the first sprocket 13. A belt 9 is mounted on the side surface of the drive roller 8. The motor 5 is fixedly connected to the mounting plate 3, the reducer 6 is fixedly connected to the mounting plate 3, the output end of the motor 5 is fixedly connected to the reducer 6, the output end of the reducer 6 is fixedly connected to a first sprocket, the side surface of the first sprocket is meshed with a first chain, the side surface of the drive shaft 7 is fixedly connected to a second sprocket, the side surface of the second sprocket meshes with the first chain, the side surface of the drive shaft 7 is rotatably connected to the upright frame 1, the side surface of the first sprocket 13 meshes with the chain 14, and the side surface of the second sprocket 15 meshes with the chain 14.
[0030] The controller 25, motor 5, reducer 6, and tension sensor 24 are all electrically connected to an external power source. The motor 5, reducer 6, and tension sensor 24 are all electrically connected to the controller 25. This is known to those skilled in the art and will not be elaborated further here. After the motor 5 starts, it drives the reducer 6 to rotate. The power is transmitted to the drive shaft 7 through sprocket 1, chain 1, and sprocket 2. As the drive shaft 7 rotates, the power is transmitted to the driven shaft 10 through the first sprocket 13, chain 14, and second sprocket 15. The drive shaft 7 and the driven shaft 10 drive the drive roller 8 and the driven roller 11 to rotate, which in turn causes the belt 9 to rotate.
[0031] This device uses a first sprocket 13, a second sprocket 15 and a chain 14 to transmit power to drive the belt 9 to rotate. The chain 14 runs on both sides of the belt 9, which can provide relatively stable support and constraint for the belt 9. Because the chain 14 has high strength and rigidity, it restricts the lateral movement of the belt 9 during operation, so that it can only move along the path specified by the chain 14, thereby effectively reducing the possibility of the belt 9 running off course.
[0032] The tensioning mechanism includes a shaft mounting connecting block 17, a vertical plate 20 fixedly connected to the side surface of the upright 1 and a threaded rod 21 threadedly connected to the inner wall of the side of the vertical plate 20, a reinforcing rod 23 fixedly connected to the side surface of the upright 1, a tension sensor 24 fixedly connected to the upper surface of the reinforcing rod 23, a controller 25 fixedly connected to the side surface of the upright 1, a side retaining frame 22 fixedly connected to the upper surface of the upright 1 by bolts, and a shaft mounting connecting block 17 fixedly connected to the side surface of the driven shaft 10 by bearings. The shaft mounting connecting block 17 is located in the mounting hole 16.
[0033] An L-shaped support plate 19 is fixedly connected to the lower surface of the upright 1, forming a groove between the L-shaped support plate 19 and the upright 1. A sliding rod 18 is fixedly connected to the lower surface of the shaft mounting connecting block 17, and the sliding rod 18 is located in the groove. When adjusting the position of the shaft mounting connecting block 17, the sliding rod 18 slides in the groove. A crossbar 4 is fixedly connected to the side surface of the support leg 2, and one end of the threaded rod 21 is fixedly connected to the shaft mounting connecting block 17.
[0034] Tighten the threaded rod 21 to adjust the position of the shaft mounting connecting block 17 in the mounting hole 16. The tension sensor 24 contacts the belt 9 and detects the tension of the belt 9. When the belt 9 becomes loose or the tension is uneven, tightening the threaded rod 21 can adjust the tension of the belt 9 and restore the belt 9 to its normal tension state, thus avoiding belt misalignment caused by belt 9 looseness.
[0035] The working principle of this utility model is as follows: When using this device to transport sand willow, the controller 25 starts the motor 5 and the reducer 6, causing the drive shaft 7 and the drive roller 8 to rotate, which in turn drives the belt 9 to rotate. The sand willow to be transported is placed on the belt 9, and the sand willow moves with the belt 9 to be transported. The tension sensor 24 detects the tension of the belt 9 and transmits the information to the controller 25. The controller 25 can observe the tension of the belt 9 during transportation. The tension of the belt 9 can be adjusted by turning the threaded rod 21 and adjusting the shaft mounting connecting block 17 at the position of the mounting hole 16.
[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A chain conveyor mechanism for preventing belt misalignment in sand saws, characterized in that: It includes a power transmission mechanism, a tensioning mechanism and a support frame (1), and the side surface of the support frame (1) is provided with a plurality of mounting holes (16). The power transmission mechanism includes a motor (5), a reducer (6), a drive shaft (7), a drive roller (8), a driven shaft (10), and a driven roller (11). The power transmission mechanism also includes a first sprocket (13) fixedly connected to the side surface of the drive shaft (7), a second sprocket (15) fixedly connected to the side surface of the driven shaft (10), and a chain (14) provided on the first sprocket (13). A belt (9) is provided on the side surface of the drive roller (8). The tensioning mechanism includes a shaft mounting connecting block (17), a vertical plate (20) fixedly connected to the side surface of the upright (1) and a threaded rod (21) threadedly connected to the inner wall of the side of the upright plate (20). A reinforcing rod (23) is fixedly connected to the side surface of the upright (1), and a tension sensor (24) is fixedly connected to the upper surface of the reinforcing rod (23). A controller (25) is fixedly connected to the side surface of the upright (1), and a side baffle (22) is fixedly connected to the upper surface of the upright (1) by bolts.
2. The chain conveyor mechanism for preventing belt misalignment of a sand saw as described in claim 1, characterized in that, The lower surface of the support frame (1) is fixedly connected to a support leg (2), and the side surface of the support leg (2) is fixedly connected to a mounting plate (3).
3. The chain conveyor mechanism for preventing belt misalignment of a sand saw as described in claim 2, characterized in that, The motor (5) is fixedly connected to the mounting plate (3), and the reducer (6) is fixedly connected to the mounting plate (3).
4. The chain conveyor mechanism for preventing belt misalignment of a sand saw as described in claim 1, characterized in that, The output end of the motor (5) is fixedly connected to the reducer (6). The output end of the reducer (6) is fixedly connected to a sprocket one. A chain one is meshed with the side surface of the sprocket one. A sprocket two is fixedly connected to the side surface of the drive shaft (7). The side surface of the sprocket two meshes with the chain one.
5. A chain conveyor mechanism for preventing belt misalignment in sand saws according to claim 1, characterized in that, The side surface of the drive shaft (7) is rotatably connected to the stand (1), the side surface of the first sprocket (13) meshes with the chain (14), and the side surface of the second sprocket (15) meshes with the chain (14).
6. The chain conveyor mechanism for preventing belt misalignment of a sand saw as described in claim 1, characterized in that, The side surface of the driven shaft (10) is fixedly connected to the shaft mounting block (17) by a bearing, and the shaft mounting block (17) is located in the mounting hole (16).
7. The chain conveyor mechanism for preventing belt misalignment of a sand saw as described in claim 1, characterized in that, An L-shaped support plate (19) is fixedly connected to the lower surface of the support frame (1), and a groove is formed between the L-shaped support plate (19) and the support frame (1). A slide rod (18) is fixedly connected to the lower surface of the shaft mounting connecting block (17), and the slide rod (18) is located in the groove.
8. A chain conveyor mechanism for preventing belt misalignment in sand saws according to claim 2, characterized in that, A crossbar (4) is fixedly connected to the side surface of the support leg (2), and one end of the threaded rod (21) is fixedly connected to the shaft mounting block (17).