A left and right deviation automatic correction mechanism of a conveying belt

Abstract

The utility model discloses a kind of transport belt left and right deviation automatic correction mechanism, belong to warehouse logistics technical field, to solve the problem of existing belt deviation manual adjustment poor accuracy, long time consumption, low adaptability, the mechanism includes upper support assembly, lower support assembly, guiding limiting elastic adjusting assembly, drum assembly, guide wheel assembly, limiting wheel assembly and rotary mounting assembly;Upper and lower support assembly are connected by guiding limiting elastic adjusting assembly, both are equipped with drum assembly opposite up and down, two ends symmetrically set taper fixed guide wheel assembly and free rotating limiting wheel assembly, lower support assembly is fixed with external equipment by deep groove ball bearing type rotary mounting assembly, when working, belt deviation is guided to limiting wheel after being touched guide wheel, drive support assembly rotates around rotary piece, drum applies reverse force to belt to realize automatic correction.

Description

Technical Field

[0001] This utility model belongs to the field of belt conveyor technology, specifically relating to an automatic correction mechanism for left and right deviation of a transport belt. Background Technology

[0002] In warehousing, logistics, and industrial production, belt conveyors are widely used for the linear transport of materials due to their high efficiency and adaptability. However, during actual operation, belts are prone to lateral deviation due to factors such as installation accuracy, uneven load, and belt wear. Currently, most methods for correcting belt deviation involve manual adjustment, which has the following drawbacks: 1. Adjust the center alignment of the machine head, tail, and intermediate frame: The adjustment precision is poor, and only coarse adjustment is possible; 2. Cutting off and redoing the belt joint: This cannot fundamentally solve the belt misalignment problem and requires frequent replacement of the belt; 3. Fine-tuning the roller position: requires repeated test runs and adjustments, which is time-consuming and not suitable for high transport pressure environments; Therefore, we propose an automatic correction mechanism for left and right deviation of transport belts. Utility Model Content

[0003] The purpose of this invention is to provide an automatic correction mechanism for left and right deviation of a transport belt, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic correction mechanism for left and right deviation of a conveyor belt, comprising an upper support assembly and a lower support assembly, wherein the upper support assembly and the lower support assembly are connected by a guide and limit elastic adjustment assembly; The upper support assembly and the lower support assembly are provided with opposing roller assemblies, and a gap is reserved between the opposing roller assemblies for the conveyor belt to pass through. Both ends of the upper support assembly and the lower support assembly are provided with symmetrically distributed guide wheel assemblies and limit wheel assemblies. The guide wheel assembly is in a fixed locked state to pre-guide the conveyor belt, and the limit wheel assembly is in a free rotation state to trigger the belt correction action. The lower support assembly is provided with a rotary mounting assembly, which is used to fix the upper support assembly and the lower support assembly to rotate around their axis, so as to apply a reverse force to the misaligned belt through the roller assembly to achieve correction.

[0005] Preferably, the upper support assembly includes an upper horizontal plate and an upper bracket, and the upper bracket is provided at both ends of the upper horizontal plate; The lower support assembly includes a lower horizontal plate and a lower bracket, with the lower bracket provided at both ends of the lower horizontal plate; The guide limit elastic adjustment component includes a vertical guide post and a spring guide post, and the vertical guide post and the spring guide post are provided between the upper bracket and the lower bracket that are aligned with each other; One end of the vertical guide column is fixedly connected to the upper support, and the other end is slidably engaged with the lower support. The vertical guide column is used to absorb the radial vibration generated during the operation of the conveyor belt and to restrict the upper support assembly and the lower support assembly to move relative to each other only along the axial direction of the vertical guide column. The spring guide post includes a spring and an adjusting bolt. The spring is sleeved on the rod of the adjusting bolt. The two ends of the adjusting bolt are threaded to the upper bracket and the lower bracket, respectively. By turning the adjusting bolt, the compression of the spring can be changed, thereby simultaneously adjusting the gap between the upper and lower relative roller assemblies and the clamping force of the roller assemblies on the conveyor belt.

[0006] Preferably, the roller assembly includes at least two sets of rollers arranged vertically opposite each other. Each set of rollers is detachably connected to the upper support assembly and the lower support assembly respectively through roller mounting seats, and a gap is reserved between the vertically opposite rollers for the conveyor belt to pass through.

[0007] Preferably, the upper and lower roller axes of the roller assembly are parallel to each other. The roller mounting base is an L-shaped sheet metal part. One side of the roller mounting base is bolted to the upper bracket or the lower bracket, and the other side is bolted to the end cap of the roller. The upper and lower horizontal plates have pre-reserved adjusting nut limiting grooves. The bolts of the roller mounting base pass through the adjusting nut limiting grooves and are connected to the upper or lower horizontal plates. The installation position of the roller is adjusted by moving the bolts within the adjusting nut limiting grooves.

[0008] Preferably, the limiting wheel assembly includes limiting rollers, which are located at both ends of the upper support assembly and the lower support assembly, and the wheel surface of the limiting rollers corresponds one-to-one with the edge position of the conveyor belt.

[0009] Preferably, the guide wheel assembly includes a guide roller, which has a conical structure. The larger diameter end of the conical structure of the guide roller faces the outer side of the conveyor belt, and the smaller diameter end faces the inner side of the conveyor belt. This guide roller is used to guide the edge of the conveyor belt to move towards the limiting roller when the conveyor belt deviates from its designated path, thereby triggering a correction action.

[0010] Preferably, the rotary mounting assembly includes a central rotary support and a central mounting base; The central rotating support is mounted on the central mounting base, which has pre-drilled mounting holes for fasteners of external transportation equipment to pass through.

[0011] Preferably, the central rotating support is a deep groove ball bearing, the outer ring of the deep groove ball bearing is fixedly connected to the central mounting base, the inner ring of the deep groove ball bearing is fixedly connected to the lower horizontal plate, the lower support assembly can rotate around the axis of the deep groove ball bearing, and the relative position of the upper support assembly and the lower support assembly remains stable during the rotation.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Achieve fully automatic belt deviation correction and reduce manual intervention: No need for repeated manual adjustments. Through the linkage triggering of the guide wheel assembly and the limit wheel assembly, it can respond to belt deviation in real time. The correction response time is short, which greatly reduces the frequency of worker maintenance. It is especially suitable for unattended conveyor scenarios. 2. High adaptability and compatibility with different belt specifications: The gap between the upper and lower rollers can be flexibly changed by adjusting the bolts of the spring guide column to adapt to various conveyor belts of different thicknesses; the lateral position of the rollers can be finely adjusted by using the adjusting nut limit grooves of the upper and lower horizontal plates to adapt to belts of different widths without the need to replace the core components. 3. Stable operation and strong anti-interference ability: The vertical guide column can absorb the radial vibration generated during the belt operation, avoiding the decrease in correction accuracy caused by vibration; at the same time, the deep groove ball bearing has low rotational resistance, ensuring that the mechanism can deflect flexibly under low thrust, improving the success rate of correction. 4. Simple structure, low assembly and maintenance costs, no need for complex processing technology, automatic correction can avoid belt wear and conveyor line stoppage caused by deviation, reduce belt replacement costs and reduce downtime losses every year, and can be adapted to medium and low load scenarios such as express sorting lines, food conveying lines, and light material conveying lines in mines, with strong versatility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 4 This is a schematic diagram of the main structure of this utility model; Figure 5 This is a top view of the structure of this utility model; Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at point A in the middle.

[0014] In the diagram: 1. Upper horizontal plate; 2. Upper bracket; 3. Lower horizontal plate; 4. Lower bracket; 5. Vertical guide column; 6. Spring guide column; 601. Spring; 602. Adjusting bolt; 7. Roller; 8. Roller mounting base; 9. Limiting roller; 10. Guide roller; 11. Central rotating support; 12. Central mounting base. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-6 The automatic correction mechanism for left and right deviation of the conveyor belt provided by this utility model includes an upper support component and a lower support component, which are connected by a guide limit elastic adjustment component. The upper support assembly and the lower support assembly are equipped with opposing roller assemblies, and a gap is reserved between the opposing roller assemblies for the conveyor belt to pass through. Both ends of the upper support assembly and the lower support assembly are equipped with symmetrically distributed guide wheel assemblies and limit wheel assemblies. The guide wheel assemblies are in a fixed locked state to pre-guide the conveyor belt, and the limit wheel assemblies are in a free-rotating state to trigger the belt correction action. The lower support assembly is equipped with a rotary mounting assembly, which is used to fix the connection with the external transportation equipment and to make the upper support assembly and the lower support assembly rotate around its axis so as to apply a reverse force to the belt that is misaligned through the roller assembly to achieve correction. The upper support assembly and the lower support assembly are symmetrically distributed vertically. The upper support assembly includes an upper horizontal plate 1 and an upper bracket 2. The upper bracket 2 is vertically fixed at both ends of the upper horizontal plate 1 to form a portal frame. The lower support assembly includes a lower horizontal plate 3 and a lower bracket 4. The lower bracket 4 is vertically fixed at both ends of the lower horizontal plate 3, and the structure is symmetrical with the upper support assembly. Guide limit elastic adjustment assembly: Connects the upper support assembly and the lower support assembly, including a vertical guide post 5 and a spring guide post 6. Between each pair of relatively aligned upper brackets 2 and lower brackets 4, there is one vertical guide post 5 and one spring guide post 6: one end of the vertical guide post 5 is welded and fixed to the upper bracket 2, and the other end is inserted into the guide hole of the lower bracket 4 to form a sliding fit; the spring guide post 6 is composed of a spring 601 and an adjusting bolt 602. The spring 601 is sleeved on the rod of the adjusting bolt 602. The upper end of the adjusting bolt 602 is threaded to the upper bracket 2, and the lower end is threaded to the lower bracket 4. The compression of the spring 601 can be changed by turning the adjusting bolt 602. Roller assembly: Used to support and drive the belt, including at least two sets of vertically opposed rollers 7 and matching roller mounting seats 8. The roller mounting seat 8 is an L-shaped sheet metal part, one side of which is detachably connected to the upper bracket 2 or the lower bracket 4 by bolts, and the other side is fixed to the end cap of the roller 7 by bolts. A gap is reserved between the vertically opposed rollers 7 for the conveyor belt to pass through, and the axes of all rollers 7 remain parallel. Furthermore, corresponding to the positions of the roller mounting seats 8, adjusting nut limiting grooves are reserved on the upper horizontal plate 1 and the lower horizontal plate 3. The fixing bolts of the roller mounting seat 8 pass through these limiting grooves and connect to the upper horizontal plate 1 or the lower horizontal plate 3. By sliding the bolts within the limiting grooves, the lateral position of the rollers 7 can be finely adjusted to accommodate belts of different widths. The guide wheel assembly and the limit wheel assembly are symmetrically distributed at both ends of the upper support assembly and the lower support assembly, and are used to trigger the correction action. The guide wheel assembly includes a guide roller 10, which has a conical structure. Its large diameter end faces the outside of the conveyor belt, and its small diameter end faces the inside of the conveyor belt. The guide roller 10 is fixed to the bracket by a bushing and is in a fixed and locked state, so it cannot rotate. The limit wheel assembly includes a limit roller 9, which is mounted on the bracket by an internal bearing and is in a free-rotating state. Its wheel surface corresponds one-to-one with the edge of the conveyor belt, ensuring that the limit roller 9 can be contacted when the belt deviates to either side. Rotary mounting assembly: used to fix the mechanism to the external transport equipment and provide the rotation fulcrum required for correction, including a central rotating support 11 and a central mounting base 12; the central mounting base 12 has reserved mounting holes for external fasteners to pass through, and can be fixed to the frame of the external transport equipment by bolts; the central rotating support 11 is a deep groove ball bearing, the outer ring of which is welded to the central mounting base 12, and the inner ring is welded to the center of the bottom surface of the lower horizontal plate 3, so that the lower support assembly can rotate flexibly around the axis of the deep groove ball bearing, and the relative position of the upper support assembly and the lower support assembly remains stable during the rotation.

[0017] In summary, the method of using the automatic left-right deviation correction mechanism for the conveyor belt provided in this embodiment is as follows: Normal operation: The conveyor belt passes between the upper and lower opposing rollers 7. The rollers 7 form a clamping force on the belt, driving the belt to be conveyed in a preset direction. At this time, the inner side of the conical surface of the guide roller 10 maintains a small gap with the edge of the belt, the limiting roller 9 does not contact the belt, and the mechanism as a whole is in a stable state. Misalignment triggering stage: When the belt misaligns to one side, the edge of the belt first contacts the guide roller 10 on the left. Since the guide roller 10 has a conical structure and is fixed and locked, its conical surface will generate a guiding force on the edge of the belt, guiding the edge of the belt to continue to move towards the limit roller 9 on the left until the edge of the belt contacts the limit roller 9. During the rotation correction stage: After the edge of the belt contacts the limiting roller 9, a lateral thrust is applied to the limiting roller 9. Since the limiting roller 9 is fixed on the lower support assembly, and the lower support assembly is connected to the central mounting base 12 through the central rotating support 11, this thrust will drive the lower support assembly to rotate clockwise or counterclockwise around the axis of the deep groove ball bearing. The upper support assembly rotates synchronously with the lower support assembly, and the relative offset is limited by the vertical guide column 5, causing the upper and lower rollers 7 to deflect as a whole. Return to centering stage: After deflection, the roller 7 will apply a frictional force to the belt in the opposite direction of the deviation. For example, if the belt deviates to the left, the roller will apply a frictional force to the right after deflection. Under the action of this frictional force, the belt will gradually move towards the center of the conveyor line until it returns to the centered state. After the belt returns to center, its edge will disengage from the limiting roller 9, and the mechanism will return to its initial position under the normal driving force of the roller 7, completing one correction cycle.

[0018] Compared with existing manual correction technology, this utility model has the following significant advantages: 1. Achieve fully automatic belt deviation correction and reduce manual intervention: No need for repeated manual adjustments. Through the linkage triggering of the guide wheel assembly and the limit wheel assembly, it can respond to belt deviation in real time. The correction response time is short, which greatly reduces the frequency of worker maintenance. It is especially suitable for unattended conveyor scenarios. 2. High adaptability and compatibility with different belt specifications: The gap between the upper and lower rollers can be flexibly changed by adjusting the bolts of the spring guide column to adapt to various conveyor belts of different thicknesses; the lateral position of the rollers can be finely adjusted by using the adjusting nut limit grooves of the upper and lower horizontal plates to adapt to belts of different widths without the need to replace the core components. 3. Stable operation and strong anti-interference ability: The vertical guide column can absorb the radial vibration generated during the belt operation, avoiding the decrease in correction accuracy caused by vibration; at the same time, the deep groove ball bearing has low rotational resistance, ensuring that the mechanism can deflect flexibly under low thrust, improving the success rate of correction. 4. Simple structure, low assembly and maintenance costs, no need for complex processing technology, automatic correction can avoid belt wear and conveyor line stoppage caused by deviation, reduce belt replacement costs and reduce downtime losses every year, and can be adapted to medium and low load scenarios such as express sorting lines, food conveying lines, and light material conveying lines in mines, with strong versatility.

[0019] 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. An automatic correction mechanism for left and right deviation of a conveyor belt, characterized in that, It includes an upper support assembly and a lower support assembly, which are connected by a guide and limit elastic adjustment assembly; The upper support assembly and the lower support assembly are provided with opposing roller assemblies, and a gap is reserved between the opposing roller assemblies for the conveyor belt to pass through. Both ends of the upper support assembly and the lower support assembly are provided with symmetrically distributed guide wheel assemblies and limit wheel assemblies. The guide wheel assembly is in a fixed locked state to pre-guide the conveyor belt, and the limit wheel assembly is in a free rotation state to trigger the belt correction action. The lower support assembly is provided with a rotary mounting assembly, which is used to fix the upper support assembly and the lower support assembly to rotate around their axis, so as to apply a reverse force to the misaligned belt through the roller assembly to achieve correction.

2. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 1, characterized in that: The upper support assembly includes an upper horizontal plate (1) and an upper bracket (2), with the upper bracket (2) provided at both ends of the upper horizontal plate (1). The lower support assembly includes a lower horizontal plate (3) and a lower bracket (4), and the lower bracket (4) is provided at both ends of the lower horizontal plate (3). The guide limit elastic adjustment assembly includes a vertical guide post (5) and a spring guide post (6). The vertical guide post (5) and the spring guide post (6) are provided between the upper bracket (2) and the lower bracket (4) that are aligned with each other. One end of the vertical guide column (5) is fixedly connected to the upper support (2), and the other end is slidably engaged with the lower support (4). The vertical guide column (5) is used to absorb the radial vibration generated during the operation of the conveyor belt and restrict the upper support assembly and the lower support assembly to move relative to each other only along the axial direction of the vertical guide column (5). The spring guide post (6) includes a spring (601) and an adjusting bolt (602). The spring (601) is sleeved on the rod of the adjusting bolt (602). The two ends of the adjusting bolt (602) are threadedly connected to the upper bracket (2) and the lower bracket (4) respectively. By turning the adjusting bolt (602) to change the compression of the spring (601), the gap between the upper and lower relative roller assemblies and the clamping force of the roller assembly on the conveyor belt can be adjusted synchronously.

3. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 2, characterized in that: The roller assembly includes at least two sets of rollers (7) arranged vertically opposite each other. Each set of rollers (7) is detachably connected to the upper support assembly and the lower support assembly respectively through roller mounting base (8), and a gap is reserved between the vertically opposite rollers (7) for the conveyor belt to pass through.

4. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 3, characterized in that: The rollers (7) arranged opposite each other in the roller assembly have parallel axes. The roller mounting base (8) is an L-shaped sheet metal part. One side of the roller mounting base (8) is bolted to the upper bracket (2) or the lower bracket (4), and the other side is bolted to the end cap of the roller (7). The upper horizontal plate (1) and the lower horizontal plate (3) have reserved adjusting nut limiting grooves. The bolts of the roller mounting base (8) pass through the adjusting nut limiting grooves and are connected to the upper horizontal plate (1) or the lower horizontal plate (3). The installation position of the roller (7) is adjusted by moving the bolts in the adjusting nut limiting grooves.

5. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 1, characterized in that: The limiting wheel assembly includes a limiting roller (9), which is located at both ends of the upper support assembly and the lower support assembly. The wheel surface of the limiting roller (9) corresponds one-to-one with the edge position of the conveyor belt.

6. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 5, characterized in that: The guide wheel assembly includes a guide roller (10), which has a conical structure. The large diameter end of the conical structure of the guide roller (10) faces the outside of the conveyor belt, and the small diameter end faces the inside of the conveyor belt. It is used to guide the edge of the belt to move towards the limiting roller (9) when the conveyor belt deviates, so as to trigger the correction action.

7. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 2, characterized in that: The rotary mounting assembly includes a central rotary support (11) and a central mounting base (12). The central rotating support (11) is installed on the central mounting base (12), and the central mounting base (12) has reserved mounting holes for fasteners of external transportation equipment to pass through.

8. The automatic correction mechanism for left and right deviation of a conveyor belt according to claim 7, characterized in that: The central rotating support (11) is a deep groove ball bearing. The outer ring of the deep groove ball bearing is fixedly connected to the central mounting base (12), and the inner ring of the deep groove ball bearing is fixedly connected to the lower horizontal plate (3). The lower support assembly can rotate around the axis of the deep groove ball bearing, and the relative position of the upper support assembly and the lower support assembly remains stable during the rotation.

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