An automatic correction device for conical idlers

Abstract

This utility model relates to the technical field of belt conveyor accessories, specifically an automatic tapered idler roller correction device to solve the problems of low efficiency and high cost associated with manual adjustments for belt misalignment. The device includes a support, a rotating base, a base frame, and a diagonal support frame. A second rotating roller is mounted on the top of the diagonal support frame, with its diameter closer to the first rotating roller being larger than its diameter at the far end. When the belt misaligns, the difference in linear velocity between the two ends of the roller creates a frictional deviation, generating a lateral force that helps the belt return to center. The base frame deflects around the rotating base, amplifying the correction effect. The device adapts to different belt conveyors through adjustable structures such as a telescopic frame and a screw, including a tapered roller and a U-shaped seat connection, achieving automatic centering, reducing manual intervention, and improving conveyor stability. Its main purpose is to automatically correct belt misalignment, avoid downtime, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyor accessories, and in particular to an automatic correction device for conical idlers. Background Technology

[0002] To improve production efficiency and reduce labor costs, more and more companies are adopting belt conveyors. However, with the increasing prevalence of belt conveyors, safety issues are also on the rise. Belt misalignment is a common and serious problem, which can be caused by various factors, including material not falling into the center of the belt, improper installation, non-perpendicular belt joints, uneven internal tension, inflexible idler roller operation, and inconsistent roller wear. Belt misalignment can lead to serious consequences such as material spillage, belt wear, and belt tearing, causing safety accidents, affecting production efficiency and equipment lifespan. Existing correction methods are often insufficient for long-term reliable problem-solving and may even damage the belt.

[0003] Previous solutions involved manually adjusting the tail rollers with a lead screw when the equipment was stopped. These methods prevented the conveyor belt from running off-track to some extent, but many problems still existed:

[0004] 1. Adjustments and corrections require manual intervention, increasing labor costs;

[0005] 2. Low work efficiency; requires slow adjustment based on the belt position.

[0006] 3. When adjusting the conveyor belt misalignment problem, the equipment needs to be stopped, which greatly reduces production efficiency. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies, such as the need for equipment shutdown during adjustments, which reduces production efficiency, and the need for manual adjustment and observation, which increases labor costs. Therefore, this invention proposes an automatic correction device for conical rollers.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An automatic correction device for tapered idlers includes:

[0010] The support has a rotating seat at the top, which is rotatably connected to the base frame. The base frame has diagonal braces fixed at both ends, and a second rotating roller is installed at the top of the diagonal braces.

[0011] The diameter of the second rotating roller near the end of the first rotating roller is larger than the diameter at the far end. When the belt deviates, the difference in linear velocity generates a frictional deviation, forming a lateral force that prompts the belt to return to center. The base frame deflects around the rotating seat, amplifying the correction effect and achieving automatic belt centering.

[0012] In one possible design, a lead screw runs through the diagonal brace, and two nuts are threaded onto the outer wall of the lead screw. The two nuts are located on both sides of the diagonal brace to form a bidirectional locking mechanism. A first U-shaped seat is fixed to the top of the lead screw, and one end of the shaft of the second rotating roller is inserted into the first U-shaped seat.

[0013] In one possible design, a relief groove is provided at the top of the diagonal brace, and a rotating shaft is installed in the relief groove. A second U-shaped seat is fixed to the outer wall of the rotating shaft, and the other end of the second rotating roller is inserted into the second U-shaped seat to form an adjustable support structure.

[0014] In one possible design, two telescopic frames are slidably connected at both ends of the support. The support has multiple threaded holes, and the telescopic frames are adjusted and fixed by bolts engaging with the threaded holes. The two telescopic frames on the same side are fixed to the same mounting plate.

[0015] In one possible design, a mounting bracket is provided on one side of the mounting plate, and the mounting bracket has a vertical groove. The mounting plate is fixedly connected to the belt conveyor by bolts passing through the vertical groove.

[0016] In one possible design, the top of the base frame is rotatably connected to a first rotating roller via a support frame. The first rotating roller and the second rotating roller cooperate to form a belt conveyor channel. When the belt deviates, the contact angle is automatically adjusted by the taper effect of the second rotating roller to maintain stable belt operation.

[0017] In this application, when installed with a belt conveyor, it can be fixed to the belt conveyor using two mounting brackets. Two telescopic brackets within the support are fixed to the two mounting brackets respectively using bolts. Simultaneously, the length of the telescopic brackets extending out of the support is fixed using bolts. Two diagonal braces are fixedly connected to both ends of the base frame. The bottom of the base frame and the top of the support are rotatably connected via a rotating seat, allowing the base frame to deflect at a certain angle on the support. The first rotating roller and two second rotating rollers assist in the rotation of the belt conveyor belt. By rotating two nuts, the height of the lead screw within the diagonal braces can be adjusted, thereby adjusting the height of the first U-shaped seat. One end of the first U-shaped seat is positioned opposite the second rotating roller. The support is located at one end, and the other end is assisted by a second U-shaped seat and a rotating shaft within the clearance groove for assisted flipping, thereby adjusting the tilt angle of the second rotating roller. When the belt deviates, due to the different diameters at both ends of the second rotating roller, the difference in linear velocity of the parts in contact with the belt causes a change in friction. The friction on the deviated side increases, while the friction on the other side decreases. This causes the belt to generate a lateral component force to return to center. The deviation in friction will push the base frame to rotate on the support, thereby causing the two second rotating rollers to change direction in a certain way, further enhancing the lateral component force. Thus, the belt is guided back to the center point through the action of the lateral component force. After the belt is centered, the friction on both sides is rebalanced, the base frame returns to its initial position, and the belt maintains stable operation.

[0018] Beneficial effects: In this utility model, the tapered roller automatic correction device utilizes the diameter difference between the two ends of the second rotating roller to cause the friction force on both sides to deviate when the belt runs off-center, forming a lateral component force that prompts the belt to return to center. The correction effect is further amplified by the deflection of the base frame, realizing automatic centering of the belt and reducing the need for manual intervention.

[0019] In this utility model, the tapered idler roller automatic correction device can flexibly adapt to belt conveyors of different specifications and adjust the tilt angle of the second rotating roller by adjusting the extension length of the telescopic frame by adjusting the bolt and the height of the screw by rotating the nut, thereby enhancing the adaptability of the device to various working conditions.

[0020] In this invention, the difference in linear velocity of the second rotating roller is used to automatically correct the deviation, and the adjustable structure is combined with the adjustable structure to adapt to different working conditions, ensuring that the belt runs stably in the center and improving the conveying efficiency and reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an automatic correction device for a conical roller proposed in this utility model;

[0022] Figure 2 This is a plan view of an automatic correction device for a conical roller proposed in this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the inclined support frame of the automatic correction device for conical rollers proposed in this utility model.

[0024] In the diagram: 1. Support; 2. Telescopic frame; 3. Mounting frame; 4. First rotating roller; 5. Rotating seat; 6. Second rotating roller; 7. Diagonal brace; 8. Base frame; 9. Mounting plate; 10. Vertical groove; 11. Lead screw; 12. Nut; 13. First U-shaped seat; 14. Second U-shaped seat; 15. Relief groove; 16. Rotating shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In one embodiment: Refer to Figure 1An automatic correction device for conical idlers is disclosed, which is used in the field of belt conveyor accessories. Two telescopic frames 2 are respectively installed at both ends of a support 1. Multiple sets of threaded holes are formed on the surface of the telescopic frames 2 along their length. Four telescopic frames 2 are inserted into corresponding grooves at both ends of the support 1. M12 bolts are screwed into the threaded holes of the telescopic frames 2 through through holes in the side wall of the support 1, achieving a sliding connection and length fixation between the telescopic frames 2 and the support 1. A rectangular mounting plate 9 is welded to the end of each telescopic frame 2. Two rows of bolt holes are formed on the surface of the mounting plate 9 along its height.

[0027] Reference Figure 1 Two L-shaped mounting brackets 3 are placed on the trusses on both sides of the belt conveyor. Two vertical slots 10 are opened in the vertical section of the mounting bracket 3. The mounting plate 9 is attached to the outside of the vertical section of the mounting bracket 3. M10 bolts are passed through the bolt holes of the vertical slots 10 and the mounting plate 9 in sequence, and the device is fixedly connected to the belt conveyor by tightening the nuts.

[0028] Reference Figures 1 to 3 A rotating seat 5 with a rotating rod is welded to the center of the top of the support 1. A corresponding rotating groove is provided at the bottom of the base frame 8, and the rotating rod is inserted into the rotating groove for rotational connection. Diagonal braces 7 are welded vertically to both ends of the base frame 8, and through holes are opened inside the diagonal braces 7. A lead screw 11 is passed through the through hole of the diagonal brace 7, and two nuts 12 are installed on the external threaded sections at both ends of the lead screw 11. The axial fixation of the lead screw 11 and the diagonal brace 7 is achieved by bidirectional locking.

[0029] Reference Figure 3 A first U-shaped seat 13 is welded to the top of the lead screw 11, and bearings are installed on the two ends of the second rotating roller 6. The bearing of the left end of the second rotating roller 6 is embedded into the U-shaped groove of the first U-shaped seat 13, and the right end of the rotating roller passes through the clearance groove 15 opened at the top of the inclined support frame 7. The rotating shaft 16 with the second U-shaped seat 14 is placed in the clearance groove 15. The two ends of the rotating shaft 16 are connected to the side wall of the inclined support frame 7 through deep groove bearings. The installation of the second rotating roller 6 is completed by embedding the right end of the rotating roller 6 into the second U-shaped seat 14. The diameter of the second rotating roller 6 at the end closer to the first rotating roller 4 is larger than the diameter at the far end.

[0030] In another embodiment: Reference Figure 1 and Figure 2An improvement upon Embodiment 1: A first rotating roller 4 is mounted on the top of the base frame 8 via a support frame. The two ends of the first rotating roller 4 are connected to the support frame via bearing seats. During debugging, the height of the lead screw 11 is adjusted by rotating the nuts 12 on both sides, so that the axis of the second rotating roller 6 forms an angle of 5°-8° with the horizontal plane. When the belt deviates, the different diameter sections of the second rotating roller 6 contact the belt, generating a difference in linear velocity. The lower linear velocity on the deviated side leads to increased friction, generating a lateral force that causes the belt to return to center. This force is transmitted to the base frame 8 through the second rotating roller 6, causing the base frame 8 to deflect around the rotating seat 5, further changing the contact angle between the second rotating roller 6 and the belt, forming positive feedback adjustment until the belt returns to the centered state.

[0031] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for automatically correcting the deviation of a conical roller, characterized in that, include: Support (1), with a rotating seat (5) on top, the rotating seat (5) is rotatably connected to the base frame (8), the base frame (8) has diagonal braces (7) fixed at both ends, and a second rotating roller (6) is provided on the top of the diagonal braces (7); The diameter of the second rotating roller (6) near the first rotating roller (4) is larger than the diameter at the far end. When the belt deviates, the frictional deviation is generated by the difference in linear velocity, forming a lateral component force that causes the belt to return to center. The base frame (8) deflects around the rotating seat (5) to amplify the correction effect and realize the automatic centering of the belt.

2. The apparatus of claim 1, wherein, A lead screw (11) runs through the inside of the diagonal brace (7). Two nuts (12) are threaded on the outer wall of the lead screw (11). The two nuts (12) are located on both sides of the diagonal brace (7) to form a two-way locking. The top of the lead screw (11) is fixed with a first U-shaped seat (13). One end of the second rotating roller (6) is inserted into the first U-shaped seat (13).

3. The apparatus of claim 2, wherein, The top of the diagonal brace (7) has a relief groove (15), and a rotating shaft (16) is installed in the relief groove (15). The outer wall of the rotating shaft (16) is fixed with a second U-shaped seat (14), and the other end of the second rotating roller (6) is inserted into the second U-shaped seat (14) to form an adjustable support structure.

4. The apparatus of claim 1, wherein, The support (1) is slidably connected to two telescopic frames (2) at both ends. The support (1) has multiple threaded holes. The telescopic frames (2) are adjusted and fixed by bolts and threaded holes. The ends of the two telescopic frames (2) on the same side are fixed with the same mounting plate (9).

5. The apparatus of claim 4, wherein, A mounting bracket (3) is provided on one side of the mounting plate (9). The mounting bracket (3) has a vertical groove (10). The mounting plate (9) is fixedly connected to the belt conveyor by bolts passing through the vertical groove (10).

6. The apparatus according to any one of claims 1-5, characterized in that, The top of the base frame (8) is rotatably connected to the first rotating roller (4) via a support frame. The first rotating roller (4) and the second rotating roller (6) cooperate to form a belt conveyor channel. When the belt deviates, the contact angle is automatically adjusted by the taper effect of the second rotating roller (6) to maintain the stable operation of the belt.

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