A belt deviation correcting device for a belt conveyor

Abstract

This utility model discloses a belt correction device for a belt conveyor, including a lower support, an upper support, an intermediate idler frame, an intermediate idler, a side idler frame, a side idler, a stop roller support, a stop roller, support wheels, a U-shaped trough plate, a connecting rod, an angle fixing plate, fixing holes, through holes, and bolts. The intermediate idler is equipped with two side idlers on each side, increasing the correction force accordingly. By adjusting the installation position of the connecting rod on the upper support, the trough angle can be adjusted as needed, effectively reducing the types of spare parts required. An angle fixing plate is provided; when a fixed angle is needed, the angle fixing plate fits against the upper support. The angle fixing plate has fixing holes distributed according to the angle, allowing for adjustments with a precision of 1°. All connections are bolted, making adjustment convenient. Support wheels are provided on both sides of the upper support. When the belt deviates, the support wheels and the lower support rotate simultaneously, providing effective support, reducing the bending moment of the intermediate rotating shaft, and effectively extending the service life of the rotating shaft.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a belt correction device for belt conveyors. Background Technology

[0002] Belt conveyors are indispensable and economical logistics conveying equipment for forming rhythmic assembly lines. They are characterized by high conveying capacity, long conveying distance, simple structure, and easy maintenance. High-strength belt-aligning idlers are crucial components on belt conveyors used to adjust the conveyor belt's running trajectory. They are typically located at the tail of the conveyor and their function is to adjust the conveyor belt's position by applying a certain lateral force, ensuring the conveyor maintains a stable running trajectory and preventing deviation and edge slippage. The belt-aligning idler's correction principle is as follows: when the belt deviates and contacts the guide roller, the support on the idler rotates at an angle. The roller mounted on the support rotates at an angle to the conveyor's material transport direction, generating a component force that corrects the belt's running direction. However, existing belt-aligning idlers for belt conveyors have the following problems: 1. Conventional self-aligning idlers have only one roller on the side, which limits the force required to straighten the conveyor belt.

[0003] 2. The trough angle of conventional correction roller brackets is fixed. In the same project, belt conveyors with the same bandwidth may choose different trough angles to adapt to the process requirements of the entire system, and there are many types of spare parts.

[0004] 3. Conventional correction devices only have a maximum rotation angle limit. When it is desired that the correction device be fixed at a certain angle within the limit range, it cannot be achieved (in the field, steel wires are often used to tie it to other equipment to hold the upper bracket and fix it in one position).

[0005] 4. Conventional self-aligning idler sets only have a central rotating shaft. When the conveyor belt deviates, the bending moment on the central rotating shaft increases and changes repeatedly, making it prone to breakage. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies and provide a belt correction device for belt conveyors.

[0007] To achieve the above objectives, this utility model is implemented according to the following technical solution: A belt alignment device for a belt conveyor includes a lower support mounted on a frame below the belt at the tail end of the belt conveyor, an upper support rotatably mounted on the lower support, an intermediate idler frame fixed to the middle of the upper end face of the upper support, intermediate idlers rotatably mounted between the intermediate idler frames, side idler frames hinged to the upper support at both ends of the intermediate idler frames, and side idlers rotatably mounted between the side idler frames; two side idlers are arranged side by side on each side idler frame, and a guide roller bracket is fixedly mounted at the end of each side idler frame, with a guide roller rotatably mounted on the guide roller bracket; both ends of the upper support have... A support wheel is provided, which is rotatably connected to a U-shaped groove plate fixed on a lower support. A connecting rod is hinged between the lower end face of the top of the side roller and the upper support at the upper end of the support wheel. An angle fixing plate is fixedly installed inside the lower support on the inner side of the support wheel. The upper end face of the angle fixing plate is in contact with the lower end face of the upper support. Several arc-shaped fixing holes are provided on the angle fixing plate. A through hole is provided on the lower end face of the upper support above the angle fixing plate. During the rotation of the upper support around the lower support, the through hole corresponds to one of the fixing holes. A bolt is detachably connected between the fixing hole and the through hole.

[0008] Furthermore, a first mounting hole is provided on the upper bracket at the upper end of the support wheel, and a second mounting hole is provided on the upper bracket inside the support wheel. The first mounting hole or the second mounting hole is rotatably connected to one end of the connecting rod through a pin.

[0009] Furthermore, a slewing bearing seat is fixed at the center of the lower support, and a slewing bearing is fixedly installed inside the slewing bearing seat. A rotating shaft is fixedly connected to the inner ring of the slewing bearing, and the top end of the rotating shaft is fixed at the center of the lower end face of the upper support.

[0010] Preferably, the included angle between two adjacent fixing holes on the upper end face of the angle fixing plate is 1°.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1) In this utility model, two side rollers are respectively arranged on both sides of the middle roller, and the correction force is increased accordingly; 2) By adjusting the installation position of the connecting rod on the upper bracket, this utility model can adjust the slot angle as needed, which can effectively reduce the types of spare parts; 3) This utility model is equipped with an angle fixing plate. When angle fixing is not required, the angle fixing plate and the upper bracket do not need to be bolted together. When angle fixing is required, the angle fixing plate fits into the upper bracket. The angle fixing plate has fixing holes distributed according to the angle, which can achieve an adjustment with a precision of 1°. The entire connection is bolted, making adjustment convenient. 4) Support wheels are provided on both sides of the upper bracket of this utility model. When the tape deviates, the support wheels and the lower bracket rotate simultaneously, which effectively supports the tape, reduces the bending moment of the middle rotating shaft, and effectively improves the service life of the rotating shaft. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a diagram showing the component configuration on the lower support of this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model.

[0016] like Figure 1 As shown in the figure, this embodiment exemplarily illustrates a belt alignment device for a belt conveyor, including a lower support 1 mounted on a frame below the belt at the tail end of the belt conveyor, an upper support 2 rotatably mounted on the lower support 1, an intermediate idler frame 3 fixed to the middle of the upper end face of the upper support 2, intermediate idlers 5 rotatably mounted between the intermediate idler frames 3, side idler frames 4 hinged to the upper support 2 at both ends of the intermediate idler frame 3, and side idlers 6 rotatably mounted between the side idler frames 4; as shown in the figure. Figure 3 As shown, a slewing bearing seat 16 is fixed at the center of the lower support 1, and a slewing bearing 17 is fixedly installed inside the slewing bearing seat 16. A rotating shaft 18 is fixedly connected to the inner ring of the slewing bearing 17. The top end of the rotating shaft 18 is fixed to the center of the lower end face of the upper support 2, ensuring the stability of the rotation of the upper support 2. Two side rollers 6 are arranged side by side on the side roller frame 4. The two side rollers 6 increase the support contact surface with the conveyor belt, and the correction force is correspondingly increased. A guide roller bracket 7 is fixedly installed at the end of the side roller frame 4, and a guide roller 8 is rotatably installed on the guide roller bracket 7. Support wheels 15 are provided at the bottom of both ends of the upper support 2 (the support wheels are existing conventional wheels that are rotatably installed at the bottom of both ends of the upper support 2 via a rotating shaft). The support wheel can be a metal wheel. The support wheel 15 is tumblingly connected to the U-shaped groove plate 9 fixed on the lower bracket 1. The lower end face of the top of the side roller 6 is hinged to the upper bracket 2 at the upper end of the support wheel 15. An angle fixing plate 13 is fixedly installed inside the lower bracket 1 inside the support wheel 15. The upper end face of the angle fixing plate 13 is in contact with the lower end face of the upper bracket 2. Several arc-shaped fixing holes 131 are opened on the angle fixing plate 13. A through hole 14 is opened on the lower end face of the upper bracket 2 above the angle fixing plate 13. During the rotation of the upper bracket 2 around the lower bracket 1, the through hole 14 corresponds to one of the fixing holes 131. The fixing hole 131 and the through hole 14 are detachably connected by bolts.

[0017] like Figure 2As shown, a first mounting hole 201 is provided on the upper bracket 2 at the upper end of the support wheel 15, and a second mounting hole 202 is provided on the upper bracket 2 inside the support wheel 15. The first mounting hole 201 or the second mounting hole 202 is rotatably connected to one end of the connecting rod 12 by a pin. Specifically, Figure 2 In the middle, the bottom of the left connecting rod 12 is connected to the second mounting hole 202, and the bottom of the right connecting rod 12 is connected to the first mounting hole 201. That is, by adjusting the mounting position of the connecting rod 12 on the upper bracket 2, the groove angle can be adjusted as needed.

[0018] like Figure 2 As shown, the included angle between two adjacent fixing holes 131 on the upper end face of the angle fixing plate 13 is 1°. When angle fixing is not required, the angle fixing plate 13 and the upper bracket 2 are not connected by bolts. When angle fixing is required, the angle fixing plate 13 fits into the upper bracket 2. The angle fixing plate 13 has fixing holes 131 distributed according to the angle, which can achieve an adjustment with a precision of 1°. The entire connection is bolted, making adjustment convenient.

[0019] In actual use, the lower bracket 1 of the belt correction device of the belt conveyor in this embodiment is fixed at both ends to the frame below the belt at the tail of the belt conveyor with bolts and nuts. The installation position of the bottom of the adjusting rod 12 is used to adjust the trough angle, and the two ends of the belt are blocked between the two guide rollers 8. The angle fixing plate 13 is not bolted to the upper bracket 2 at first. When the belt conveyor is started and the belt deviates, it automatically corrects itself. At the same time, the support wheel and the lower bracket rotate simultaneously, providing effective support and reducing the bending moment of the intermediate rotating shaft, thus effectively improving the service life of the rotating shaft. In subsequent operation, when it is necessary to fix the angle, the angle fixing plate 13 fits into the upper bracket 2. The angle fixing plate 13 has fixing holes 131 distributed according to the angle, which can achieve an adjustment accuracy of 1°.

[0020] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model shall fall within the protection scope of this utility model.

Claims

1. A belt alignment device for a belt conveyor, comprising a lower support mounted on a frame below the belt at the tail end of the belt conveyor, an upper support rotatably mounted on the lower support, an intermediate idler frame fixed to the middle of the upper end face of the upper support, an intermediate idler rotatably mounted between the intermediate idler frames, side idler frames hinged to the upper supports at both ends of the intermediate idler frames, and side idler frames rotatably mounted between the side idler frames; characterized in that: Two side rollers are arranged side by side on the side roller frame. A guide roller bracket is fixedly installed at the end of the side roller frame, and a guide roller is rotatably installed on the guide roller bracket. Support wheels are provided at the bottom of both ends of the upper bracket. The support wheels are rotatably connected to a U-shaped groove plate fixed on the lower bracket. A connecting rod is hinged between the lower end face of the top of the side roller and the upper bracket at the upper end of the support wheel. An angle fixing plate is fixedly installed inside the lower bracket inside the support wheel. The upper end face of the angle fixing plate is in contact with the lower end face of the upper bracket. Several arc-shaped fixing holes are opened on the upper end face of the angle fixing plate. A through hole is opened on the lower end face of the upper bracket above the angle fixing plate. During the rotation of the upper bracket around the lower bracket, the through hole corresponds to one of the fixing holes. A bolt is detachably connected between the fixing hole and the through hole.

2. The belt alignment device for a belt conveyor according to claim 1, characterized in that: The upper bracket at the upper end of the support wheel has a first mounting hole, and the upper bracket inside the support wheel has a second mounting hole. The first mounting hole or the second mounting hole is rotatably connected to one end of the connecting rod by a pin.

3. The belt alignment device for a belt conveyor according to claim 1, characterized in that: The lower support is fixed with a slewing bearing seat at its center. A slewing bearing is fixedly installed inside the slewing bearing seat. A rotating shaft is fixedly connected to the inner ring of the slewing bearing. The top end of the rotating shaft is fixed to the center of the lower end face of the upper support.

4. The belt alignment device for a belt conveyor according to claim 1, characterized in that: The included angle between two adjacent fixing holes on the upper end face of the angle fixing plate is 1°.

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