Tubular belt conveyor with torsion fault early warning function

Abstract

The utility model discloses a tubular belt conveyor with a torsion fault early warning function, which relates to the technical field of belt conveyors and comprises a frame type support, a roller mechanism and a conveying belt running in the frame type support. A first roller type limit switch and a second roller type limit switch are arranged at the top end of the section, which is overlapped into the circular tube shape, of the frame type bracket, wherein a wheel of the first roller type limit switch is pressed on the outer surface of the belt of the circular-tube-shaped conveyer belt, and the second roller type limit switch is arranged beside the first roller type limit switch; the vertical distance H between the bottom end of a wheel of the second roller type limit switch and the surface of the overlapped circular tube-shaped belt is 3-10mm, and the arc length L between the wheel of the second roller type limit switch and the side surface of the overlapped circular tube-shaped belt is 10-100mm; the two limit switches are respectively connected with the computer; compared with the prior art, an early warning can be given out in time for the torsion fault of the tubular conveying belt, an operator stops the machine in time for maintenance treatment, and the maintenance time for the torsion fault of the tubular conveying belt is greatly shortened.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a tubular belt conveyor with a torsion fault early warning function. Background Technology

[0002] During production, lime powder is discharged from the finished product silo via a screw feeder. The screw feeder is frequency-controlled and can quantitatively feed the lime powder into the tubular belt conveyor. After receiving the material, the tubular belt conveyor passes through the blast furnace area from east to west, and then enters the finished product buffer silo in the sintering area from south to north. The head of the tubular belt conveyor is equipped with a four-way valve, which allows direct entry into the silo or entry through the reversible distribution silo above the silo.

[0003] The tubular belt conveyor is a new type of belt conveyor. Driven by friction, it utilizes regularly spaced polygonal idler rollers to wrap the belt into a tubular shape with overlapping edges to transport materials. The tubular belt conveyor consists of a drive unit and drive drum, tail frame, spiral tensioning device, redirecting drum, transition frame, conveyor belt, support frame, hexagonal idler rollers, horizontal belt turning device, intermediate frame, and tower. After receiving material at the tail transition section, the conveyor belt is pressed down by pressure rollers to ensure the correct orientation of the rolled-up tubular shape for airtight material transport. After passing through the intermediate running section, the conveyor belt reaches the head section. At the head transition section, pressure rollers gradually unroll the conveyor belt from its tubular shape until unloading. This effectively prevents material leakage, spillage, dust, foreign matter contamination, and rain / snow intrusion. It features good sealing, low environmental pollution, large conveying angle, suitability for complex terrain, easy horizontal and spatial turning, small footprint, and bidirectional material transport. Because tubular belt conveyors are affected by factors such as rain, frame vibration, and changes in idler friction during operation, torsion faults are prone to occur. When a torsion fault first occurs, the angle of torsion is small and easy to correct. However, if the torsion fault persists for a long time and the angle of torsion becomes large, significant manpower is required for correction. Summary of the Invention

[0004] This invention provides a tubular belt conveyor with a torsion fault early warning function, which can solve the problem that existing belt conveyor devices are prone to torsion faults during the operation of tubular belt conveyors and cannot detect them in time, thus making timely maintenance and handling impossible.

[0005] To solve the above problems, the technical solution of this utility model is as follows: It includes a frame support, a roller mechanism, and a conveyor belt running within the frame support. A first roller-type limit switch is suspended downwards from the top of the section of the conveyor belt that overlaps into a cylindrical shape on the frame support. The wheel of the first roller-type limit switch presses against the outer surface of the conveyor belt that is rolled into a cylindrical shape. A second roller-type limit switch is provided on the frame support next to the position where the conveyor belt overlaps into a cylindrical shape. The vertical distance H between the bottom end of the wheel of the second roller-type limit switch and the surface of the overlapping cylindrical belt is 3-10mm, and the distance L between the side of the wheel of the second roller-type limit switch and the side of the overlapping cylindrical belt is 10mm-100mm. The first roller-type limit switch and the second roller-type limit switch are respectively connected to a computer.

[0006] A more specific embodiment of the above technical solution may be: the running direction of the wheel of the first roller limit switch is the same as the running direction of the conveyor belt; the running direction of the wheel of the second roller limit switch is perpendicular to the running direction of the conveyor belt.

[0007] Furthermore, the first roller-type limit switch and the second roller-type limit switch are mounted on the same radial cross-section of the conveyor belt, which is rolled into a cylindrical shape.

[0008] Furthermore: in the running direction of the conveyor belt, within the section of the frame support where the conveyor belt overlaps into a circular tube, a set of the first roller limit switch and the second roller limit switch are installed at the top and side of the frame support every 100 meters.

[0009] Furthermore: the top end of the first roller-type limit switch is connected and fixed to the top frame of the frame bracket; the top end of the second roller-type limit switch is installed obliquely under the inclined plate at the upper corner of the frame bracket.

[0010] Furthermore: the vertical distance between the bottom of the wheel of the second roller limit switch and the side of the overlapping cylindrical belt is 10mm.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0012] 1. Due to the installation of a first roller limit switch and a second roller limit switch, when the conveyor belt rolled into a cylindrical shape twists inward, the overlapping side of the cylindrical belt will touch the wheel of the second roller limit switch and trigger the wheel of the second roller limit switch to issue an alarm signal; when the conveyor belt rolled into a cylindrical shape twists outward, the wheel of the first roller limit switch pressing on the outer surface of the cylindrical conveyor belt will fall onto the overlapping side of the cylindrical belt, triggering the limit switch to issue an alarm signal; the twisting fault of the cylindrical conveyor belt can be warned in time, and the operator can stop the machine in time for maintenance, which greatly reduces the maintenance time of the tubular conveyor belt twisting fault.

[0013] 2. It can prevent the conveyor belt and frame support from tearing due to twisting when the conveyor belt is rolled into a cylindrical shape, thus avoiding serious damage.

[0014] 3. It can prevent leakage of conveyed materials caused by the twisting of the conveyor belt which is rolled into a cylindrical shape.

[0015] 4. It can prevent gaps from forming in the idler structure due to the twisting of the conveyor belt which is rolled into a cylindrical shape. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Explanation of serial numbers:

[0018] Frame support 1, inclined plate 1-1, roller mechanism 2, conveyor belt 3, belt outer surface 3-1, belt surface 3-2, first roller limit switch 4, wheel 4-1, second roller limit switch 5, wheel 5-1. 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 Figure 1The illustrated scheme includes a frame support 1, a roller mechanism 2, and a conveyor belt 3 running within the frame support 1. A first roller-type limit switch 4 is suspended from the top of the section of the conveyor belt 3 that overlaps to form a cylindrical shape on the frame support 1. The wheel 4-1 of the first roller-type limit switch 4 presses against the outer surface 3-1 of the conveyor belt 3 that is rolled into a cylindrical shape. A second roller-type limit switch 5 is located beside the section of the conveyor belt that overlaps to form a cylindrical shape on the frame support 1. The bottom of the wheel 5-1 of the second roller-type limit switch 5 is 3-10 mm away from the vertical distance between the bottom of the wheel 5-1 and the surface 3-2 of the overlapping cylindrical belt. The distance L between the side of the wheel of the limit switch and the side of the overlapping cylindrical belt can be 10mm to 100mm. In this embodiment, L can be 10mm. The first roller limit switch 4 and the second roller limit switch 5 are respectively connected to the computer. When the first roller limit switch 4 and the second roller limit switch 5 are triggered, an alarm prompt is output to the computer. The running direction of the wheel of the first roller limit switch 4 is the same as the running direction of the conveyor belt 3. When the cylindrical conveyor belt is running normally forward, the wheel of the first roller limit switch 4 is also driven by the cylindrical conveyor belt. Normally, the conveyor belt rolls on the outer surface of the conveyor belt. When the conveyor belt, rolled into a cylindrical shape, twists outward, the wheel of the first roller-type limit switch, which is rolling on the outer surface of the cylindrical conveyor belt, will fall onto the overlapping cylindrical belt surface, thus triggering the limit switch and issuing an alarm signal. The second roller-type limit switch 5 runs perpendicular to the running direction of the conveyor belt and is suspended in the air. When the conveyor belt, rolled into a cylindrical shape, twists inward, the overlapping cylindrical belt side will touch the wheel of the second roller-type limit switch and trigger the wheel of the second roller-type limit switch, thus triggering an alarm signal. An alarm signal is issued; the first roller limit switch 4 and the second roller limit switch 5 are installed on the same radial cross-section of the conveyor belt rolled into a cylindrical shape; in the running direction of the conveyor belt 3, in the section of the frame support 1 where the conveyor belt overlaps into a cylindrical shape, a set of the first roller limit switch 4 and the second roller limit switch 5 are installed at the top and side of the frame support every 100 meters to detect the twisting of the conveyor belt at different positions; the top of the first roller limit switch 4 is connected and fixed to the top frame of the frame support 1, and the top of the second roller limit switch 5 is installed obliquely under the inclined plate 1-1 at the upper side corner of the frame support 1.

[0022] 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 inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tubular belt conveyor with a torsion fault early warning function, comprising a frame support, a roller mechanism, and a conveyor belt running within the frame support, characterized in that: A first roller-type limit switch is suspended from the top of the section of the conveyor belt that overlaps into a cylindrical shape on the frame support. The wheel of the first roller-type limit switch presses against the outer surface of the conveyor belt that is rolled into a cylindrical shape. A second roller-type limit switch is provided on the frame support next to the position where the conveyor belt overlaps into a cylindrical shape. The vertical distance H between the bottom end of the wheel of the second roller-type limit switch and the surface of the overlapping cylindrical belt is 3 to 10 mm, and the distance L between the side of the wheel of the second roller-type limit switch and the side of the overlapping cylindrical belt is 10 mm to 100 mm. The first roller-type limit switch and the second roller-type limit switch are respectively connected to a computer.

2. The tubular belt conveyor with torsion fault early warning function according to claim 1, characterized in that: The first roller limit switch has wheels that run in the same direction as the conveyor belt; the second roller limit switch has wheels that run in a direction perpendicular to the conveyor belt.

3. The tubular belt conveyor with torsion fault early warning function according to claim 1 or 2, characterized in that: The first roller limit switch and the second roller limit switch are installed on the same radial cross-section of the conveyor belt, which is rolled into a cylindrical shape.

4. The tubular belt conveyor with torsion fault early warning function according to claim 3, characterized in that: In the direction of the conveyor belt's operation, within the section of the frame support where the conveyor belt overlaps to form a circular tube, a set of the first roller-type limit switch and the second roller-type limit switch are installed at the top and side of the frame support every 100 meters.

5. The tubular belt conveyor with torsion fault early warning function according to claim 2, characterized in that: The top end of the first roller-type limit switch is connected and fixed to the top frame of the frame bracket; the top end of the second roller-type limit switch is installed at an angle under the inclined plate at the upper corner of the frame bracket.

6. The tubular belt conveyor with torsion fault early warning function according to claim 1, characterized in that: The vertical distance between the bottom of the wheel of the second roller limit switch and the side of the overlapping cylindrical belt is 10mm.

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