Telescopic device of telescopic belt conveyor

Abstract

The utility model relates to the field of conveying machinery, and discloses a telescopic device of a telescopic belt conveyor, which comprises a bottom plate and a multi-wedge belt, the front side and the rear side of the top end of the bottom plate are fixedly connected with supporting plates, the top end of the right side of the supporting plate on the rear side is fixedly connected with a motor, and the driving end of the motor is fixedly connected with a rotating shaft I; and the left sides and the right sides of the bottom ends of the two supporting plates are rotationally connected with third rotating shafts correspondingly, two telescopic air cylinders are fixedly connected to the middle of the top end of the bottom plate, the driving ends of the telescopic air cylinders are fixedly connected with a U-shaped frame, and the front sides and the rear sides of the middle of the U-shaped frame are rotationally connected with second rotating shafts. According to the device, the conical block is clamped in the sliding groove to slide, so that dynamic loads generated during operation of the telescopic device are dispersed and borne, shaking is reduced, the clamping block is driven to slide in the middle to position the multi-wedge belt while the device is started, and belt deviation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of conveying machinery, and in particular to a telescopic device for a telescopic belt conveyor. Background Technology

[0002] Telescopic belt conveyors are unloading equipment widely used in metallurgy, power, cement, chemical, dock, and grain industries. Their main unloading method is telescopic unloading, which is based on ordinary belt conveyors with the addition of a head telescopic mechanism, allowing the unloading head to extend and retract freely in the length direction. They are widely used in sintering raw material mixing systems in the metallurgical industry.

[0003] Some existing telescopic belt conveyors use simple mechanical transmission devices to adjust the belt length, which often requires manual operation, resulting in cumbersome operation and low efficiency. This is because traditional mechanical transmission devices usually require manually rotating nuts or bolts to stretch or contract the belt. This method is not only time-consuming and labor-intensive, but also makes it difficult to accurately control the belt length.

[0004] Secondly, existing belt conveyors are prone to displacement and swaying during operation due to dynamic loads and external forces. This is because the belt is subjected to various forces during operation, such as the weight of the material, friction, and centrifugal force. These forces cause the belt to deform and deviate, thus affecting conveying efficiency and safety. Therefore, to address these issues, a telescopic device for a telescopic belt conveyor is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a telescopic device for a telescopic belt conveyor, which aims to improve the problems of existing telescopic belt conveyors being cumbersome to operate manually, inefficient, and prone to displacement and swaying due to dynamic loads and external forces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A telescopic device for a telescopic belt conveyor includes a base plate and a multi-wedge belt. Support plates are fixedly connected to the front and rear sides of the top of the base plate. A motor is fixedly connected to the top right side of the rear support plate. A rotating shaft is fixedly connected to the drive end of the motor. Rotating shafts are rotatably connected to the left and right sides of the bottom of the two support plates. Two telescopic cylinders are fixedly connected to the middle of the top of the base plate. A U-shaped frame is fixedly connected to the drive end of the telescopic cylinders. Rotating shafts are rotatably connected to the front and rear sides of the middle of the U-shaped frame. Support blocks are fixedly connected to the left ends of the U-shaped frame. Rotating shafts are rotatably connected to the middle left sides of the two support blocks. A conical block is fixedly connected to the bottom of the U-shaped frame. A sliding groove is provided on the top of the base plate. Positioning components to prevent the multi-wedge belt from shifting are provided on the outside of the motor and the rotating shafts.

[0008] As a further description of the above technical solution:

[0009] The positioning component includes four threaded grooves, two of which are located on the front and rear sides of the first rotating shaft. The first rotating shaft and the fourth rotating shaft are slidably connected to clamping blocks on their front and rear sides. An annular groove is provided in the middle of the clamping block. A ball rod is slidably connected inside the annular groove. A slider is rotatably connected to the bottom of the ball rod. Springs are sleeved on the front and rear sides of the first rotating shaft and the fourth rotating shaft. A cleaning rod is rotatably connected to the bottom left side of the two support plates. An arc-shaped plate is fixedly connected to the bottom left side of the two support plates.

[0010] As a further description of the above technical solution:

[0011] The front and rear sides of the first rotating shaft are rotatably connected to the top right side of the two support plates, and the outside of the multi-wedge belt is slidably connected to the outside of the first rotating shaft.

[0012] As a further description of the above technical solution:

[0013] The multi-ribbed belt is externally slidably connected to the outside of the two rotating shafts three, and the multi-ribbed belt is externally slidably connected to the outside of the rotating shaft four.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the U-shaped frame is slidably connected to the top of the base plate, the conical block is slidably connected to the inner wall of the slide groove, and the side of the clamping block away from the support plate is slidably connected to the front and rear sides of the multi-wedge belt.

[0016] As a further description of the above technical solution:

[0017] The slider is externally slidably connected to the inner wall of the threaded groove, and the top of the U-shaped frame is slidably connected to the inner side of the top of the two support plates.

[0018] As a further description of the above technical solution:

[0019] One end of the spring is fixedly connected to the side of the clamping block near the support plate, and the other end of the spring is fixedly connected to the bottom plate and the side of the support block near the multi-wedge belt.

[0020] As a further description of the above technical solution:

[0021] The cleaning rod is slidably connected to the outside of the multi-wedge belt, and the bottom end of the arc-shaped plate is in contact with the top left side of the base plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by activating the telescopic cylinder, the U-shaped frame is pushed to the right by the conical block as support, and slides and moves to the right in the groove. This allows the U-shaped frame to drive the second and fourth rotating shafts to move to the left by its L-shaped shape. The conical block engages with the groove and slides, thereby dispersing and bearing the dynamic load generated by the telescopic device during operation, and reducing the shaking of the multi-wedge belt caused by vibration or external force.

[0024] 2. In this utility model, when the telescopic device is in operation, it drives the motor and the top of the shaft to rotate, so that the threaded grooves at both ends of the motor and the shaft move synchronously relative to each other, causing the slider to slide in the threaded groove and move towards the center, and simultaneously drive the clamping block to clamp the two sides of the belt. This enables the clamping block to slide in the center and position the multi-wedge belt at the same time as the device is started, preventing the belt from deviating. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the telescopic device of a telescopic belt conveyor proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the U-shaped frame of the telescopic device for a telescopic belt conveyor proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the threaded groove structure of the telescopic device of a telescopic belt conveyor proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the telescopic device clamping block of a telescopic belt conveyor proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the telescopic device shaft of a telescopic belt conveyor proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Support plate; 3. Motor; 4. Shaft 1; 5. Shaft 3; 6. Multi-ribbed belt; 7. Telescopic cylinder; 8. U-shaped frame; 9. Shaft 2; 10. Support block; 11. Shaft 4; 12. Conical block; 13. Slide groove; 14. Threaded groove; 15. Clamping block; 16. Ring groove; 17. Ball rod; 18. Slider; 19. Spring; 20. Cleaning rod; 21. Arc plate. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a telescopic belt conveyor's telescopic device, comprising a base plate 1 and a multi-ribbed belt 6. Support plates 2 are fixedly connected to the front and rear sides of the top of the base plate 1. A motor 3 is fixedly connected to the top right side of the rear support plate 2. A rotating shaft 4 is fixedly connected to the drive end of the motor 3. The motor is the power source for the entire device and is responsible for driving the multi-ribbed belt 6. The motor's rotation generates power that drives the connected rotating shaft 4 to rotate. The front and rear sides of the rotating shaft 4 are rotatably connected to the top right sides of the two support plates 2. The multi-ribbed belt 6 is slidably connected to the outside of the rotating shaft 4. The rotating shaft 4 is responsible for transmitting the motor's rotation to the multi-ribbed belt 6. The two sides of the rotating shaft are rotatably connected to the support plates 2 to ensure stability.

[0034] refer to Figure 2 Two support plates 2 are rotatably connected to two shafts 3 5 on their bottom left and right sides. The multi-ribbed belt 6 is externally slidably connected to the two shafts 3 5. The shafts 3 5 are connected to the bottom left and right sides of the support plates 2, and are responsible for further supporting the external connection of the multi-ribbed belt 6. Its presence ensures that the multi-ribbed belt can run smoothly when rotating. Two telescopic cylinders 7 are fixedly connected to the top center of the base plate 1. The drive end of the telescopic cylinders 7 is fixedly connected to a U-shaped frame 8. The telescopic cylinders 7 are the main components for controlling the position of the U-shaped frame 8. When it is necessary to extend the multi-ribbed belt 6, the telescopic cylinders 7 push the U-shaped frame to slide along the base plate 1 through their telescopic movement, thereby adjusting the length of the multi-ribbed belt 6.

[0035] The front and rear sides of the U-shaped frame 8 are slidably connected to the adjacent sides of the two support plates 2. The bottom end of the U-shaped frame 8 is slidably connected to the top of the base plate 1. The middle of the U-shaped frame 8 is rotatably connected to the front and rear sides by a second pivot 9. The U-shaped frame 8 is designed with an L-shape at the top pointing to the left and a U-shape at the bottom, allowing it to slide stably on the top of the base plate 1. The second pivot 9 on the front and rear sides can be adjusted when the multi-ribbed belt 6 needs to be extended or retracted, ensuring that it always stays in the correct position.

[0036] refer to Figure 3Support blocks 10 are fixedly connected to both ends of the left side of the U-shaped frame 8. A pivot 11 is rotatably connected to the middle left side of the two support blocks 10, thus connecting the U-shaped frame and the pivot 11 through the support blocks 10. The multi-wedge belt 6 is slidably connected to the outside of the pivot 11. A conical block 12 is fixedly connected to the bottom end of the U-shaped frame 8. A groove 13 is provided on the top of the base plate 1. The conical block 12 is slidably connected to the inner wall of the groove 13. The trapezoidal shape of the conical block can effectively engage with the groove 13 on the base plate 1, ensuring the stability of the U-shaped frame during extension and retraction, and avoiding tilting or uneven displacement caused by sliding.

[0037] refer to Figure 4 and Figure 5 Both the motor 3 and the shaft 4 11 are equipped with positioning components to prevent the multi-ribbed belt 6 from shifting. These positioning components include four threaded grooves 14, two of which are located on the front and rear sides of the shaft 4. The threaded grooves 14 on both sides of the shaft 4 and shaft 4 11 provide a sliding path for the clamping blocks 15. Clamping blocks 15 are slidably connected to the front and rear sides of the shaft 4 and shaft 4 11. The side of the clamping block 15 away from the support plate 2 is slidably connected to the front and rear sides of the multi-ribbed belt 6. An annular groove 16 is formed in the center of the clamping block 15, and a ball rod 17 is slidably connected inside the annular groove 16. The main function of the clamping block 17 is to fix the position of the multi-ribbed belt 6 and prevent it from shifting. The sliding design of the clamping block 17 allows it to move with the rotation of the shaft 3 and shaft 4 11, ensuring that the transmission belt always remains centered.

[0038] A slider 18 is rotatably connected to the bottom of the cue stick 17. The slider 18 is slidably connected to the inner wall of the threaded groove 14, and slides along the path of the threaded groove 14. While sliding, it drives the clamping block 15 to move synchronously through the annular groove 16. Springs 19 are fitted on both the front and rear sides of the rotating shaft 11 and the rotating shaft 4. One end of the spring 19 is fixedly connected to the side of the clamping block 15 near the support plate 2, and the other end of the spring 19 is fixedly connected to the side of the base plate 1 and the support block 10 near the multi-wedge belt 6. The springs are used to provide the return force of the clamping block 15, ensuring that it can quickly return to its original position when the multi-wedge belt extends or retracts, thereby maintaining the compactness and stability of the entire system.

[0039] Cleaning rods 20 are rotatably connected to the bottom left sides of the two support plates 2. The cleaning rods 20 are slidably connected to the outside of the multi-ribbed belt 6. The cleaning rods 20 are installed on the bottom left side of the support plate 1 to keep the multi-ribbed belt 6 clean and prevent debris from affecting the transmission effect. The external sliding connection design of the cleaning rods 20 allows them to adapt to the operating conditions of the multi-ribbed belt 6. An arc-shaped plate 21 is fixedly connected to the bottom left side of the two support plates 2. The bottom end of the arc-shaped plate 21 is in contact with the top left side of the base plate 1. The arc-shaped plate 21 is located at the bottom of the cleaning rods 20, and the dust cleaned by the cleaning rods 20 falls along the inner edge of the arc-shaped plate 21.

[0040] Working principle: When in use, the motor 3 is started to drive the multi-ribbed belt 6 to slide and rotate outside the motor 3. After the multi-ribbed belt 6 rotates, the inner side of the multi-ribbed belt 6 slides outside the rotating shaft 3 5, rotating shaft 2 9, and rotating shaft 4 11, thereby driving the rotating shaft 3 5, rotating shaft 2 9, and rotating shaft 4 11 to rotate, thus realizing the operation of the multi-ribbed belt 6.

[0041] When it is necessary to extend the multi-wedge belt 6, the telescopic cylinder 7 can be activated to push the U-shaped frame 8 to slide on the base plate 1. Then, the trapezoidal shape of the conical block 12 is engaged in the slide groove 13, so that the U-shaped frame 8 can slide stably and move horizontally at the top of the base plate 1. This ensures that the outer top of the multi-wedge belt 6 is in a horizontal and stable position, reducing the shaking caused by the displacement of the multi-wedge belt 6.

[0042] As the multi-ribbed belt 6 extends and retracts, the wedge-shaped protrusions on the inner side of the belt 6, which closely adhere to the motor 3 and the shaft 11, transmit the rotational force of the motor 3 to the shaft 11 through friction, causing the shaft 11 to rotate synchronously. Simultaneously, the threaded grooves 14 on both sides of the shaft 11 and motor 3 cause the slider 18 within the grooves to slide along the path of the threaded grooves 14. While the slider 18 slides, the ball rod 17 connected to the slider 18 rotates and drives the annular groove 16 to slide centrally through the sliding clamp 15. The spring 19 further restricts the position of the annular groove 16, thus clamping the sliding sides of the multi-ribbed belt 6 around the motor 3 and shaft 11, ensuring the belt remains centered during operation and reducing the possibility of belt deviation. This helps maintain the stability of the conveying process.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A telescopic device for a telescopic belt conveyor, comprising a base plate (1) and a multi-wedge belt (6), characterized in that: Support plates (2) are fixedly connected to the top front and rear sides of the base plate (1). A motor (3) is fixedly connected to the top right side of the rear support plate (2). A rotating shaft (4) is fixedly connected to the drive end of the motor (3). Rotating shafts (5) are rotatably connected to the bottom left and right sides of the two support plates (2). Two telescopic cylinders (7) are fixedly connected to the top center of the base plate (1). A U-shaped frame (8) is fixedly connected to the drive end of the telescopic cylinder (7). The frame (8) is rotatably connected to the front and rear sides of the middle part of the frame (8). The left ends of the U-shaped frame (8) are fixedly connected to the support blocks (10). The left middle of the two support blocks (10) is rotatably connected to the fourth shaft (11). The bottom end of the U-shaped frame (8) is fixedly connected to the conical block (12). The top of the base plate (1) is provided with a sliding groove (13). The motor (3) and the fourth shaft (11) are both provided with positioning components to prevent the multi-wedge belt (6) from deviating.

2. The telescopic device of a telescopic belt conveyor according to claim 1, characterized in that: The positioning assembly includes four threaded grooves (14), two of which are located on the front and rear sides of the first rotating shaft (4). The first rotating shaft (4) and the fourth rotating shaft (11) are slidably connected to clamping blocks (15) on their front and rear sides. The clamping blocks (15) have an annular groove (16) in the middle. A ball rod (17) is slidably connected inside the annular groove (16). A slider (18) is rotatably connected to the bottom of the ball rod (17). Springs (19) are sleeved on the front and rear sides of the first rotating shaft (4) and the fourth rotating shaft (11). A cleaning rod (20) is rotatably connected to the bottom left side of the two support plates (2). An arc plate (21) is fixedly connected to the bottom left side of the two support plates (2).

3. The telescopic device of a telescopic belt conveyor according to claim 1, characterized in that: The front and rear sides of the rotating shaft (4) are rotatably connected to the top right side of the two support plates (2), and the outside of the multi-wedge belt (6) is slidably connected to the outside of the rotating shaft (4).

4. The telescopic device of a telescopic belt conveyor according to claim 1, characterized in that: The multi-wedge belt (6) is externally slidably connected to the outside of the two rotating shafts three (5), and the multi-wedge belt (6) is externally slidably connected to the outside of the rotating shaft four (11).

5. The telescopic device of a telescopic belt conveyor according to claim 2, characterized in that: The bottom end of the U-shaped frame (8) is slidably connected to the top of the base plate (1), the conical block (12) is slidably connected to the inner wall of the slide groove (13), and the clamping block (15) is slidably connected to the front and rear sides of the multi-wedge belt (6) on the side away from the support plate (2).

6. The telescopic device of a telescopic belt conveyor according to claim 2, characterized in that: The slider (18) is externally slidably connected to the inner wall of the threaded groove (14), and the top of the U-shaped frame (8) is slidably connected to the inner side of the top of the two support plates (2).

7. The telescopic device of a telescopic belt conveyor according to claim 2, characterized in that: One end of the spring (19) is fixedly connected to the side of the clamping block (15) near the support plate (2), and the other end of the spring (19) is fixedly connected to the side of the base plate (1) and the support block (10) near the multi-wedge belt (6).

8. The telescopic device of a telescopic belt conveyor according to claim 2, characterized in that: The cleaning rod (20) is slidably connected to the outside of the multi-wedge belt (6), and the bottom end of the arc plate (21) is in contact with the top left side of the bottom plate (1).

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