Device to prevent slippage of coke conveyor belt

Abstract

This utility model discloses a device for preventing slippage in a coke conveyor belt, relating to the field of belt conveyor equipment. It includes a support frame with two rows of inwardly inclined lifting rollers on both sides of the top surface of the support frame for raising the edge of the conveyor belt's carrying section. The bottom surface of the support frame has several return shaping mechanisms for adjusting the edge of the conveyor belt's return section. Each return shaping mechanism includes two lower support arms, two sets of edge shaping rollers, and a central lifting roller. Above the return shaping mechanisms at both ends are tension rollers that can move up and down via an adjustment mechanism. The two lower support arms are symmetrically arranged below the support frame, with their outer ends connected to the support frame. Each lower support arm is rotatably connected to a set of edge shaping rollers, and the central lifting roller is rotatably connected between the two lower support arms. Compared with the prior art, this utility model can prevent conveyor belt slippage and improve the transfer efficiency of the coke conveyor belt.

Description

Technical Field

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

[0002] In the entire chain of coke production and transportation, belt conveyors are the core hub equipment. Whether it is the short-distance transportation of coke from the carbonization chamber to the coke storage silo within the coking plant, or the long-distance transportation from the plant area to destinations such as ports and steel mills, belt conveyors, with their advantages of strong continuous conveying capacity, adaptability to high dust conditions, and the ability to achieve automated control, undertake more than 80% of the coke transportation tasks. Their stable operation directly determines the efficiency and cost of the entire coke logistics chain.

[0003] Existing coke belt conveyors feature a closed-loop design with an upper carrying section and a lower return section. The carrying section directly carries and transports lumpy and granular coke; the return section, after completing one conveying cycle, is empty and arranged parallel to the carrying section. During coke transport, the coke on the carrying section is affected by vibration, belt joint undulations, and uneven material accumulation, inevitably causing some fine particles or fragments of coke to fall from the belt edge. This fallen coke directly falls onto the surface of the return section belt. When the return section belt, coated with the fallen coke, reaches the drive roller, the squeezing action between the belt and the roller crushes these coke particles into extremely fine powder. This powder has excellent lubricating properties and adheres evenly to the surface of the drive roller, forming a lubricating layer. This powdery lubricating layer alters the frictional properties of the roller-belt contact surface, significantly reducing the friction coefficient between the drive roller and the belt, leading to belt slippage and affecting the transport efficiency of the coke belt conveyor. Utility Model Content

[0004] This invention provides a device to prevent slippage in a coke conveyor belt. It can solve the problem that slippage caused by reduced friction between the belt and the drive roller due to coke debris during operation affects the transfer efficiency of the coke conveyor belt.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: This device for preventing slippage of a coke conveyor belt includes a support frame. Two rows of inwardly inclined lifting rollers are provided on both sides of the top surface of the support frame to lift the edge of the conveyor belt's carrying section. Several return shaping mechanisms are provided on the bottom surface of the support frame to adjust the edge of the conveyor belt's return section. Each return shaping mechanism includes two lower support arms, two sets of edge shaping rollers, and a central lifting roller. Tensioning rollers, which can move up and down via an adjustment mechanism, are provided above the return shaping mechanisms at both ends. The two lower support arms are symmetrically arranged below the support frame, with one end of each lower support arm connected to the support frame. A set of edge shaping rollers is rotatably connected to each lower support arm, and the central lifting roller is rotatably connected between the two lower support arms.

[0006] In the above-mentioned technical solution for the device to prevent slippage of the coke conveyor belt, a more specific technical solution may be: there are several lifting rollers in the bearing section, and each lifting roller in the bearing section has an upper support arm rotatably connected to one end, and the upper support arm is fixedly connected to the top of the support frame.

[0007] In some possible implementations, the lower support arm is arranged in a "V" shape, with one end connected to a follower telescopic rod, which is fixedly connected to the bottom end of the support frame.

[0008] In some possible implementations, the adjustment mechanism includes an electric telescopic rod, a pressure sensor, and a controller, wherein the electric telescopic rod is rotatably connected to the tension roller, and the pressure sensor is fixedly connected to the top of the electric telescopic rod.

[0009] In some possible implementations, a mounting plate is fixedly connected to the top of the pressure sensor, and the two ends of the mounting plate are fixedly connected to the support frame.

[0010] In some possible implementations, the edge shaping roller group is rotatably connected to the inner side of the side arm of the lower support arm, the distance between two corresponding edge shaping roller groups is less than the distance between two corresponding load-bearing section lifting rollers, and the angle between the edge shaping roller group and the horizontal line is greater than the angle between the load-bearing section lifting roller and the horizontal line.

[0011] In some possible implementations, the center lifting roller corresponds to the position of the tensioning roller.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. By lifting the edge of the load-bearing section of the transmission belt with the lifting roller, a concave structure can be formed, reducing the probability of coke falling. Combined with the lower support arm, edge shaping roller group and center lifting roller, the belt return section is convexly gathered, which can effectively prevent coke from falling and accumulating on the belt return section. This avoids the reduction of friction between the belt and the drive roller due to coke debris. Combined with the tensioning roller to tension the belt, it can prevent the conveyor belt from slipping and improve the transfer efficiency of the coke conveyor belt.

[0013] 2. The tension rollers, located above the return shaping mechanisms at both ends, can extend and retract vertically under the action of the adjustment mechanism. The electric telescopic rod, pressure sensor, and controller in the adjustment mechanism work together. The pressure sensor monitors the belt tension in real time. When a change in belt tension is detected, such as when the belt becomes loose due to prolonged operation, the pressure sensor will send a signal to the controller. The controller will then control the electric telescopic rod to adjust the position of the tension rollers, ensuring that the belt is always kept in the optimal tension state. This process can effectively maintain the normal pressure between the drive roller and the belt, ensuring that the coefficient of friction of the contact surface between the two is stable within the normal range, greatly reducing the risk of slippage caused by belt loosening, and further ensuring the stable operation of the belt conveyor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the lifting roller of the bearing section and the return shaping mechanism in this utility model.

[0016] Figure 3 This is a schematic diagram of the tension roller and adjustment mechanism in this utility model.

[0017] Figure 4 This is a side view of the present invention.

[0018] In the diagram: 1. Support frame; 2. Lifting roller of the carrying section; 21. Upper support arm; 3. Return shaping mechanism; 31. Lower support arm; 32. Edge shaping roller group; 33. Center lifting roller; 34. Follower telescopic rod; 4. Tensioning roller; 5. Adjustment mechanism; 51. Electric telescopic rod; 52. Pressure sensor; 53. Controller; 54. Mounting plate; Carrying section of conveyor belt 6-1; Return section of conveyor belt 6-2. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1-4 The embodiment shown in this embodiment proposes a device to prevent slippage of a coke conveyor belt, including a support frame 1. Two rows of inwardly inclined lifting rollers 2 are provided on both sides of the top surface of the support frame 1 to lift the edge of the bearing section 6-1 of the conveyor belt. The bottom surface of the support frame 1 is provided with a plurality of return shaping mechanisms 3 for adjusting the edge of the return section 6-2 of the conveyor belt. The return shaping mechanism 3 includes two lower support arms 31, two sets of edge shaping rollers 32 and a center lifting roller 33. Tensioning rollers 4 are provided above the return shaping mechanisms 3 at both ends, which can move up and down through an adjustment mechanism 5.

[0022] Two lower support arms 31 are symmetrically arranged below the support frame 1. Each lower support arm 31 is arranged in a "V" shape, and its outer end is fixedly connected to a following telescopic rod 34, which is fixedly connected to the bottom end of the support frame 1. A set of edge shaping rollers 32 are rotatably connected to the inner side of the side arm of each lower support arm 31 to bend the edge of the return conveyor belt downward to the inner side of the vertical projection of the bearing section.

[0023] The center lifting roller 33 is rotatably connected between the inner ends of the two lower support arms 31 to lift the middle of the return conveyor belt upward.

[0024] In this implementation scheme: the support frame 1 is installed on the frame of the coke conveyor belt; the lifting roller 2 corresponds to the conveyor belt carrying section 6-1, and is located at the bottom end of the conveyor belt carrying section 6-1, fitting snugly against the bottom end of the conveyor belt carrying section 6-1, bending and lifting the edge of the conveyor belt carrying section 6-1 upwards; when the conveyor belt carrying section 6-1 is running, the lifting roller 2 is driven by friction to rotate accordingly; the return shaping mechanism 3 corresponds to the return section 6-2 of the conveyor belt, and manually bends the belt during installation. The edge of the belt is engaged between the two rollers of the edge shaping roller group 32. The center lifting roller 33 is located at the bottom of the return section 6-2 of the conveyor belt. The edge shaping roller group 32 and the center lifting roller 33 work together to bend the belt into an upward convex and gathered state. The tension roller 4 and the adjustment mechanism 5 are installed later. The tension roller 4 and the adjustment mechanism 5 are installed between the carrying section and the return section of the conveyor belt. The tension roller 4 contacts the return section of the conveyor belt. Then, the mounting plate 54 with the tension roller 4 and the adjustment mechanism 5 installed is welded to the appropriate position on the support frame 1.

[0025] The adjustment mechanism 5 includes an electric telescopic rod 51, a pressure sensor 52, and a controller 53. Each adjustment mechanism has two electric telescopic rods, which are respectively installed at both ends of the tension roller 4. The tension roller 4 is rotatably connected to the electric telescopic rod 51, and the pressure sensor 52 is fixedly connected to the top of the electric telescopic rod 51. The controller 53 electrically connects multiple electric telescopic rods 51 and tension roller 4 to improve the stability of the device by distributing the force at multiple points. A small gap is set between the electric telescopic rods 51 and the controller 53. The following telescopic rod 34 is controlled by the controller 53 and is electrically driven to achieve synchronization with the electric telescopic rod 51. By setting the following telescopic rod 34 to follow the tension roller 4 to adjust the tension of the belt, the positions of the lower support arm 31, the edge shaping roller group 32, and the center lifting roller 33 are changed to maintain the upward convex and converged state of the belt return section.

[0026] When the belt conveyor is operating, the vertical projection of the return section of the conveyor belt is smaller than that of the carrying section. Coke falling from the carrying section will land on the outside of the return section during its descent. A small portion of the coke, either due to external forces or splashed onto the return section belt, will fall downwards under the combined effects of the raised structure of the coke on the return section, the equipment's own vibration, and gravity. This prevents coke from entering the contact surface between the belt and the drive roller, thus avoiding damage to the drive roller from large pieces of coke, or preventing it from being crushed and remaining in the belt's grooves. Lubricating powder is formed to prevent the reduction of friction between the belt and the drive roller due to coke debris. During equipment operation, the tension roller 4 contacts the top of the return section 6-2 of the conveyor belt. The tension of the belt is transmitted to the pressure sensor 52 through the electric telescopic rod 51. When the pressure sensor 52 detects an abnormal force, the controller 53 controls the electric telescopic rod 51 to extend and retract, driving the tension roller to rise and fall, adjusting the belt tension, and thus adjusting the friction between the belt and the drive roller, thereby preventing the conveyor belt from slipping.

[0027] Each column has several lifting rollers 2 for the bearing section. Each lifting roller 2 for the bearing section is rotatably connected to an upper support arm 21 at one end. The upper support arm 21 is fixedly connected to the top of the support frame 1. The upper support arm 21 can support the lifting roller 2 for the bearing section.

[0028] The top of the pressure sensor 52 is fixedly connected to the bottom surface of the mounting plate 54, and both ends of the mounting plate 54 are fixedly connected to the support frame 1; by setting the mounting plate 54, the electric telescopic rod 51, the pressure sensor 52 and the controller 53 can be supported.

[0029] The distance between the two sets of edge shaping rollers 32 located on both sides is less than the distance between the two carrying section lifting rollers 2 located on both sides, and the angle between the edge shaping rollers 32 and the horizontal line is greater than the angle between the carrying section lifting rollers 2 and the horizontal line. The smaller distance and the larger angle enable the convexity of the belt on the return section to be gathered in a narrower width range, so as to use the belt of the carrying section as a shield to reduce the probability of coke falling onto the inner wall of the return section.

[0030] The center lifting roller 33 and the tensioning roller 4 are positioned in a corresponding manner, which can maintain the limit on the return section belt.

[0031] The working principle and usage process of this utility model are as follows: The support frame 1 is installed on the frame of the coke conveyor belt. The lifting roller 2 of the bearing section is attached to the bottom end of the bearing section of the conveyor belt, bending and lifting the edge of the bearing section of the conveyor belt upward. During belt installation, the edge of the return section of the conveyor belt is manually bent downward and inserted between the two rollers of the edge shaping roller group 32. The center lifting roller 33 is located at the bottom end of the return section of the conveyor belt. Through the joint action of the edge shaping roller group 32 and the center lifting roller 33, the belt is bent into an upward convex and folded state. When the belt conveyor is running, the coke falling from the bearing section of the conveyor belt will fall to the outside of the return section during the falling process. A small portion of the coke that is subjected to external force or splashed onto the return section belt will fall downward under the combined action of the upward convex structure of the coke in the return section, the vibration of the equipment itself, and gravity. During the process, the tension roller 4 is controlled by the adjustment mechanism 5 to adjust the tension of the belt to avoid the conveyor belt slipping due to insufficient friction between the belt and the drive roller.

[0032] This utility model can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. A device for preventing the skidding of a coke belt conveyor, comprising a support frame (1), characterized in that: The support frame (1) has two rows of inwardly inclined lifting rollers (2) on both sides of its top surface for lifting the edge of the conveyor belt carrying section. The support frame (1) has several return shaping mechanisms (3) on its bottom surface for adjusting the edge of the return section of the conveyor belt. Each return shaping mechanism (3) includes two lower support arms (31), two sets of edge shaping rollers (32) and a center lifting roller (33). Tensioning rollers (4) are provided above the return shaping mechanisms (3) at both ends, which can move up and down through the adjustment mechanism (5). Two lower support arms (31) are symmetrically arranged below the support frame (1). The outer ends of the lower support arms are connected to the support frame (1). A set of edge shaping rollers (32) is rotatably connected to each lower support arm. The center lifting roller (33) is rotatably connected between the two lower support arms (31).

2. The apparatus for preventing slip of a traveling coke belt conveyor according to claim 1, characterized by: There are several bearing section lifting rollers (2), and each bearing section lifting roller (2) has an upper support arm (21) rotatably connected to one end, and the upper support arm (21) is fixedly connected to the top of the support frame (1).

3. The device for preventing the slip of a conveyor belt for transporting coke according to claim 1 or 2, characterized in that: The lower support arm (31) is V-shaped, with one end connected to a follower telescopic rod (34), which is fixedly connected to the bottom of the support frame (1).

4. The apparatus for preventing slip of a hot-belt conveyor as claimed in claim 3, wherein: The adjustment mechanism (5) includes an electric telescopic rod (51), a pressure sensor (52) and a controller (53). The electric telescopic rod (51) is rotatably connected to the tension roller (4), and the pressure sensor (52) is fixedly connected to the top of the electric telescopic rod (51).

5. The apparatus for preventing slip of a hot-belt conveyor as claimed in claim 4, wherein: The pressure sensor (52) is fixedly connected to a mounting plate (54) at its top end, and the two ends of the mounting plate (54) are fixedly connected to the support frame (1).

6. The apparatus for preventing slip of a hot-belt conveyor as claimed in claim 3, wherein: The edge shaping roller group (32) is rotatably connected to the inner side of the side arm of the lower support arm (31). The distance between the corresponding two edge shaping roller groups (32) is less than the distance between the corresponding two bearing section lifting rollers (2). The angle between the edge shaping roller group (32) and the horizontal line is greater than the angle between the bearing section lifting roller (2) and the horizontal line.

7. The apparatus for preventing slip of a traveling coke belt conveyor as set forth in claim 1, wherein: The central lifting roller (33) is positioned opposite to the tensioning roller (4).

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