Belt conveying mechanism of coal sample preparation machine
Through the drive and positioning mechanism, the motor drives the gear to rotate synchronously, causing the lifting plate to rise and fall. Combined with the positioning pressure plate and bolt locking, the problem of inconvenient conveyor height adjustment caused by threaded rod wear is solved, and the stability and flexibility of the conveyor frame are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANGSHI FENGTAI HUAYAN ZHIYANG EQUIP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
The threaded rods of existing coal conveyors are prone to wear after prolonged use, which makes it inconvenient to adjust the height of the conveyor and affects the coal conveying effect.
The system employs a drive mechanism and a positioning mechanism. The motor drives the gears to rotate, and the transmission chain drives the rotating teeth to rotate synchronously, thereby raising and lowering the lifting plate. Combined with the positioning pressure plate and positioning bolts, the lifting plate is locked and the angle is controlled, ensuring the stability and flexibility of the conveyor frame.
It improves the stability and flexibility of the conveyor frame, allowing for adjustment of discharge height and angle according to needs, and extends service life.
Smart Images

Figure CN224492571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal conveying technology, specifically to a belt conveyor mechanism for a coal sample preparation machine. Background Technology
[0002] Coal, often referred to as "black gold" and the "food of industry," is a crucial energy source in my country, and its supply is vital to the stability of the country's industrial development and all aspects of society. Belt conveyors are essential for coal processing, facilitating its transport and subsequent processing.
[0003] The patent application, with publication number CN217919971U, entitled "A Coal Conveyor," describes a coal conveyor as follows: "A motor 201 drives a threaded rod 202 to rotate, which in turn moves a threaded block 203. The movement of the threaded block 203 then moves one end of a rotating rod 204. Since the other end of the rotating rod 204 is fixed below the conveyor, when the bottom end moves forward, the top end moves upward, thereby moving the second mounting block 207 of the support plate 206 upward and the conveyor belt 105 upward. Because one end of the conveyor belt 105 is rotatably connected to the top of the support rod 103, the other end of the conveyor belt 105 will rotate upward and stretch the telescopic rod 107, thereby adjusting the height of the conveyor." During coal conveying, the threaded block 203 experiences a significant thrust towards the motor 201. After prolonged use, this causes wear on the threads of the threaded rod 202, affecting the movement of the threaded block 203 and making it difficult to adjust the height of the conveyor, thus impacting the processing of the coal. Utility Model Content
[0004] The purpose of this utility model is to provide a belt conveyor mechanism for a coal sample preparation machine, which can change the discharge height, improve the stability of the conveyor frame, and push the moving plate to slide along the arc-shaped slide plate to achieve control of the discharge angle, meet the needs of different occasions, and has the advantages of long service life, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a belt conveyor mechanism for a coal sample preparation machine, comprising a base and a conveyor frame disposed on the top of the base. One end of the conveyor frame is rotatably connected to the base, and the other end is rotatably connected to two lifting plates. The lifting plates are slidably connected to a support cylinder, and the bottom of the support cylinder is connected to a movable plate. The movable plate is slidably connected to an arc-shaped sliding plate connected to the top of the base. The arc-shaped sliding plate is connected to a positioning bolt for positioning the movable plate. The movable plate is connected to a drive mechanism for driving the two lifting plates to rise and fall synchronously. The support cylinder is connected to a positioning mechanism for positioning the lifting plates.
[0006] Preferably, the drive mechanism includes a motor, two gears, two rotating teeth, and a transmission chain. The gears are connected to the corresponding rotating teeth, the rotating teeth are connected to the lifting plate, and the rotating teeth are rotatably connected to the support cylinder via a shaft. The two gears are connected to each other via a transmission chain. The motor is connected to the top of the moving plate, and the power output end of the motor is connected to the gears.
[0007] Preferably, the rotating teeth are engaged with the lifting plate.
[0008] Preferably, the positioning mechanism includes a positioning plate, an adjusting bolt, and a U-shaped seat. The U-shaped seat is used to guide the adjusting bolt, and the adjusting bolt is used to drive the positioning plate to move back and forth. The positioning plate is movably connected to the support cylinder.
[0009] Preferably, the U-shaped seat is fixed to one side of the support cylinder, the adjusting bolt is rotatably connected to the U-shaped seat, and the adjusting bolt is connected to the threaded groove provided in the positioning pressure plate.
[0010] Preferably, the side of the support cylinder is provided with a guide groove, the two sides of the positioning plate are slidably connected to the guide groove, and the positioning plate matches the toothed groove on the side of the lifting plate.
[0011] Preferably, the top of the base is connected to two support seats, and the conveyor frame is connected to the two support seats via a shaft.
[0012] Preferably, the side of the arc-shaped sliding plate is provided with multiple positioning grooves, the positioning bolts are matched with the positioning grooves, and the positioning bolts are threadedly connected to the moving plate.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, by setting up a driving mechanism and a positioning mechanism, uses a motor to drive a gear to rotate, which in turn drives another gear to rotate through a transmission chain, achieving synchronous rotation of the two rotating gears. The rotating gears drive the lifting plate to rise and fall, and the lifting plate drives the end of the conveyor frame to rise and fall, thereby changing the discharge height to meet the needs of different occasions. When the discharge height is appropriate, rotating the adjusting bolt drives the positioning pressure plate to move forward, connecting the positioning pressure plate with the lifting plate, thereby achieving positioning and locking of the lifting plate and improving the stability of the conveyor frame. Furthermore, pushing the moving plate to slide along the arc-shaped sliding plate achieves control of the discharge angle. The positioning bolt locks the moving plate, achieving control of the discharge angle and height. It has strong applicability and a long service life. Attached Figure Description
[0014] Figure 1 This is a rear-view perspective view of the present invention;
[0015] Figure 2 This is a frontal perspective view of the present invention;
[0016] Figure 3 for Figure 1 A partial view;
[0017] Figure 4 for Figure 3 A partial view;
[0018] Figure 5 This is a schematic diagram of the positioning mechanism structure of this utility model;
[0019] Figure 6 This is a front view of the present invention.
[0020] In the diagram: 1. Base; 2. Conveyor frame; 3. Support seat; 4. Lifting plate; 5. Support cylinder; 6. Motor; 7. Moving plate; 8. Arc-shaped sliding plate; 9. Positioning pressure plate; 10. Positioning bolt; 11. Adjusting bolt; 12. Rotating gear; 13. Gear; 14. Transmission chain; 15. Guide groove; 16. U-shaped seat; 17. Positioning groove. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 6 This utility model provides a belt conveyor mechanism for a coal sample preparation machine, including a base 1 and a conveyor frame 2 disposed on the top of the base 1. One end of the conveyor frame 2 is rotatably connected to the base 1, and the other end is rotatably connected to two lifting plates 4. A support cylinder 5 is slidably connected to the lifting plates 4, and the support cylinder 5 guides the lifting plates 4, improving the stability of the lifting of the lifting plates 4, i.e., ensuring stable lifting of the end of the conveyor frame 2. A movable plate 7 is connected to the bottom of the support cylinder 5, and the movable plate 7 is slidably connected to an arc-shaped sliding plate 8 connected to the top of the base 1. The arc-shaped sliding plate 8 guides the movable plate 7, improving the stability of the movement of the movable plate 7. A positioning bolt 10 for positioning the movable plate 7 is connected to the arc-shaped sliding plate 8, and a drive mechanism for driving the two lifting plates 4 to lift synchronously is connected to the movable plate 7. A positioning mechanism for positioning the lifting plates 4 is connected to the support cylinder 5.
[0023] When adjusting the discharge height, the motor 6 drives the gear 13 to rotate, and the gear 13 drives another gear 13 to rotate through the transmission chain 14. The two gears 13 rotate in the same direction, and the gear 13 can drive the lifting plate 4 to rise and fall, thereby changing the end height of the conveyor frame 2 to meet the needs of different occasions.
[0024] Once the material is discharged at a suitable height, the positioning mechanism locks and fixes the lifting plate 4, improving the stability of the connection between the lifting plate 4 and the support cylinder 5, keeping the discharge height constant, and preventing slippage.
[0025] The drive mechanism includes a motor 6, two gears 13, two rotating gears 12, and a transmission chain 14. The gears 13 are connected to their corresponding rotating gears 12, which are connected to the lifting plate 4. The rotating gears 12 are rotatably connected to the support cylinder 5 via shafts, ensuring stable rotation and preventing misalignment between the rotating gears 12 and the lifting plate 4, which would affect the transmission effect. The two gears 13 are connected via the transmission chain 14. The motor 6 is connected to the top of the moving plate 7, and its power output end is connected to the gears 13.
[0026] The rotating gear 12 meshes with the lifting plate 4, resulting in high transmission efficiency and ensuring a constant instantaneous transmission ratio.
[0027] The positioning mechanism includes a positioning plate 9, an adjusting bolt 11, and a U-shaped seat 16. The U-shaped seat 16 guides the adjusting bolt 11, which drives the positioning plate 9 to move back and forth. The positioning plate 9 is movably connected to the support cylinder 5. When adjusting the height of the end of the conveyor frame 2, rotating the adjusting bolt 11 drives the positioning plate 9 to move backward, separating the positioning plate 9 from the lifting plate 4, thus loosening the lifting plate 4 and facilitating the lifting mechanism to raise and lower the lifting plate 4. When the lifting plate 4 needs to be positioned, rotating the adjusting bolt 11 drives the positioning plate 9 to move forward, connecting the positioning plate 9 with the lifting plate 4, thus locking and positioning the lifting plate 4. The operation is simple, convenient, and highly flexible.
[0028] The U-shaped seat 16 is fixed to one side of the support cylinder 5, and the adjusting bolt 11 is rotatably connected to the U-shaped seat 16, and the adjusting bolt 11 is connected to the threaded groove provided in the positioning pressure plate 9.
[0029] The support cylinder 5 has a guide groove 15 on its side. The two sides of the positioning plate 9 are slidably connected to the guide groove 15, and the positioning plate 9 matches the toothed groove on the side of the lifting plate 4. The guide groove 15 guides the positioning plate 9, improves the stability of the positioning plate 9 moving forward and backward, and the positioning plate 9 cannot be separated from the guide groove 15.
[0030] The top of the base 1 is connected to two support seats 3. The conveyor frame 2 is connected to the two support seats 3 via shafts. When adjusting the height of the end of the conveyor frame 2, the conveyor frame 2 moves in an arc around the upper shaft of the support seats 3, such as... Figure 6 The angle A shown is the adjustment angle, where 30° ≤ A ≤ 45°.
[0031] The side of the arc-shaped slide plate 8 is provided with multiple positioning grooves 17. The positioning bolts 10 are matched with the positioning grooves 17 and are threadedly connected to the moving plate 7. The moving plate 7 is pushed to slide along the arc-shaped slide plate 8 to control the discharge angle. After the angle is adjusted, the positioning bolts 10 are rotated so that their ends are connected with the corresponding positioning bolts 10 to lock the moving plate 7 in place.
[0032] Working principle: Motor 6 drives gear 13 to rotate, and gear 13 drives another gear 13 to rotate through transmission chain 14, realizing synchronous rotation of the two rotating gears 12. The rotating gears 12 drive the lifting plate 4 to lift and lower, realizing the height adjustment of the end position of the conveyor frame 2, thereby changing the discharge height. When the end of the conveyor frame 2 is at a suitable height, rotating the adjusting bolt 11 drives the positioning plate 9 to move forward, so that the positioning plate 9 is connected to the lifting plate 4, realizing the locking and fixing of the lifting plate 4, improving the stability of the connection between the lifting plate 4 and the support cylinder 5, and thus improving the stability of the conveyor frame 2. When the discharge angle needs to be adjusted, push the moving plate 7 to move, so that the moving plate 7 slides on the arc-shaped sliding plate 8, thereby facilitating the control of the discharge angle. Finally, rotate the positioning bolt 10 so that its end is connected to the corresponding positioning groove 17, realizing the locking and fixing of the moving plate 7, and improving the stability of the connection between the moving plate 7 and the base 1.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A belt conveyor mechanism for a coal sample preparation machine, comprising a base (1) and a conveyor frame (2) disposed on top of the base (1), characterized in that, One end of the conveyor frame (2) is rotatably connected to the base (1), and the other end is rotatably connected to two lifting plates (4). The lifting plates (4) are slidably connected to a support cylinder (5). The bottom of the support cylinder (5) is connected to a moving plate (7). The moving plate (7) is slidably connected to an arc-shaped sliding plate (8) connected to the top of the base (1). The arc-shaped sliding plate (8) is connected to a positioning bolt (10) for positioning the moving plate (7). The moving plate (7) is connected to a drive mechanism for driving the two lifting plates (4) to lift synchronously. The support cylinder (5) is connected to a positioning mechanism for positioning the lifting plates (4).
2. The belt conveyor mechanism of a coal sample preparation machine according to claim 1, characterized in that, The drive mechanism includes a motor (6), two gears (13), two rotating teeth (12), and a transmission chain (14). The gears (13) are connected to the corresponding rotating teeth (12), the rotating teeth (12) are connected to the lifting plate (4), and the rotating teeth (12) are rotatably connected to the support cylinder (5) via a shaft. The two gears (13) are connected to each other via the transmission chain (14). The motor (6) is connected to the top of the moving plate (7), and the power output end of the motor (6) is connected to the gears (13).
3. The belt conveyor mechanism of a coal sample preparation machine according to claim 2, characterized in that, The rotating tooth (12) is engaged with the lifting plate (4).
4. The belt conveyor mechanism of a coal sample preparation machine according to claim 1, characterized in that, The positioning mechanism includes a positioning plate (9), an adjusting bolt (11), and a U-shaped seat (16). The U-shaped seat (16) is used to guide the adjusting bolt (11), and the adjusting bolt (11) is used to drive the positioning plate (9) to move back and forth. The positioning plate (9) is movably connected to the support cylinder (5).
5. The belt conveyor mechanism of a coal sample preparation machine according to claim 4, characterized in that, The U-shaped seat (16) is fixed to one side of the support cylinder (5), and the adjusting bolt (11) is rotatably connected to the U-shaped seat (16), and the adjusting bolt (11) is connected to the threaded groove provided in the positioning pressure plate (9).
6. The belt conveyor mechanism of a coal sample preparation machine according to claim 4, characterized in that, The side of the support cylinder (5) is provided with a guide groove (15), and the two sides of the positioning plate (9) are slidably connected to the guide groove (15), and the positioning plate (9) matches the toothed groove on the side of the lifting plate (4).
7. The belt conveyor mechanism of a coal sample preparation machine according to claim 1, characterized in that, The top of the base (1) is connected to two support seats (3), and the conveyor frame (2) is connected to the two support seats (3) by a shaft.
8. The belt conveyor mechanism of a coal sample preparation machine according to claim 1, characterized in that, The side of the arc-shaped sliding plate (8) is provided with multiple positioning grooves (17), the positioning bolts (10) are matched with the positioning grooves (17), and the positioning bolts (10) are threadedly connected to the moving plate (7).