A belt conveyor deviation detection device

Abstract

The present application relates to the technical field of belt conveyors, and discloses a belt conveyor deviation detection device, comprising a support leg, a connecting frame fixedly mounted on the top of the support leg, and a set of correction wheels respectively provided on the left and right sides of the top of the connecting frame, and a set of support wheels provided in the middle of the top of the connecting frame, and at the same time, the outer surfaces of the correction wheels and the support wheels are in frictional contact with the bottom end of the conveyor belt. The present application provides a belt conveyor deviation detection device, with respect to the setting of the correction wheels, when the conveyor belt deviates and forces the pressure ring on the corresponding side to move outward, the position state between the two ends of the magnetic ring on the pressure ring and the two sets of magnetic shielding plates changes, causing the magnetic field strength of the magnetic ring passing through the magnetorheological fluid to increase, thereby increasing the sliding friction between the outer roller and the hollow shaft, and further causing the outer roller to decrease with the rotation speed of the conveyor belt, so as to force the conveyor belt to deviate to the other side to achieve the purpose of correcting its deviation.

Description

Technical Field

[0001] The present application relates to the technical field of belt conveyors, and in particular to a deviation detection device for a belt conveyor. Background Art

[0002] Belt conveyor is a kind of mechanical equipment that can continuously transport bulk materials or finished goods. It is widely used in various loading and unloading and transportation fields because of its low noise during operation, simple structure and easy operation.

[0003] However, since the belt conveyor is driven by friction, it is easy to deviate during actual use, which may cause safety accidents such as belt tearing and belt breaking. Therefore, in order to ensure the stability and reliability of the belt conveyor during operation, it is necessary to install a correction device on it to solve the deviation phenomenon of the belt conveyor during operation.

[0004] However, the existing correction device has a complex structure and contains various electrical components. At the same time, the detection and correction of deviation are triggered and implemented by different mechanisms. As a result, under harsh working conditions, the failure rate of the correction device is high, posing a major safety hazard. In addition, the sensitivity of the correction reaction is easily interfered by external factors, resulting in a decrease in its accuracy, poor stability and reliability.

[0005] Therefore, there is an urgent need for a deviation-correcting device for a belt conveyor to solve the defects of the above-mentioned existing deviation-correcting devices during actual use. Summary of the Invention

[0006] The present application proposes a deviation detection device for a belt conveyor. The device has a mechanized structure, which makes the deviation correction device more adaptable and has a lower failure rate. It is not easily disturbed by external factors during the detection and correction process, and has the advantages of high stability and reliability. It is used to solve the problem that the existing deviation correction device has a complex structure and contains various electrical components. At the same time, the detection and correction of deviation are triggered by different mechanisms, which makes the failure rate of the deviation correction device higher in harsh working conditions, and there are greater safety hazards. In addition, the sensitivity of the deviation correction reaction is easily disturbed by external factors, resulting in a decrease in its accuracy.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a belt conveyor deviation detection device, comprising a support leg that can be fixedly installed at a specific position of the belt conveyor by bolts, a connecting frame fixedly installed on the top of the support leg, and a group of correcting wheels are respectively provided on the left and right sides of the top of the connecting frame, and a group of supporting wheels are provided in the middle of the top of the connecting frame. At the same time, the outer surfaces of the correcting wheels and the supporting wheels are in frictional contact with the bottom end of the conveyor belt to support the conveyor belt, and the correcting wheels include a hollow shaft fixedly installed on the top of the connecting frame, and the outer surface of the hollow shaft is movable sleeve An outer roller is connected, and an inner ring groove is opened on one side of the inner part of the outer roller, and a pressure ring with an outer surface higher than the outer surface of the outer roller is movably sleeved on the inner ring groove. The pressure ring is transmission connected to the outer roller through an elastic member movably sleeved on one side of the inner cavity of the inner ring groove, and under the elastic force of the elastic member, the end of the pressure ring contacts the side end of the conveyor belt, and then when the conveyor belt deviates to one side, the pressure ring in the corresponding direction can be forced to move outward to squeeze the elastic member, so as to form a detection feedback whether the conveyor belt on the belt conveyor deviates during operation.

[0008] Furthermore, two groups of slots are provided inside the support leg and on the right side of the inner ring groove, and magnetic shielding plates are fixedly sleeved inside the two groups of slots. A magnetic ring is fixedly installed on the inner wall of the pressure ring, and the two ends of the magnetic ring are initially located on the two groups of magnetic shielding plates respectively. The two groups of magnetic shielding plates can then be used to limit and regulate the change in magnetic flux between the two ends of the magnetic ring to form detection feedback.

[0009] Furthermore, the gap formed by the inner wall of the outer roller and the outer surface of the hollow shaft is filled with magnetorheological fluid, and the sliding friction between the outer roller and the hollow shaft is adjusted by regulating the magnetic field strength passing through the magnetorheological fluid.

[0010] Furthermore, a plurality of groups of blind holes arranged in a circular array are provided in the middle of the outer surface of the hollow shaft and in the gap formed by the inner wall of the outer roller and the outer surface of the hollow shaft. When a magnetic field passes through the magnetorheological fluid, the magnetorheological fluid can effectively increase the sliding friction resistance between the hollow shaft and the outer roller after solidification.

[0011] Furthermore, one side of the outer surface of the hollow shaft is movably sleeved with a movable snap ring, the end of which is fixedly connected to the end face of the outer roller, and the outer diameter of the movable snap ring is the same as the outer diameter of the outer roller, and a connecting hole connected to its inner cavity is provided at the top of one side of the outer surface of the hollow shaft, and the other end of the hollow shaft is connected to the negative pressure air pump. At the same time, a plurality of waist-shaped holes arranged in a ring array and connected to its inner cavity are provided on the outer surface of the movable snap ring. Then, under the action of the connecting hole, the movable snap ring and the waist-shaped hole, when the bottom end of the conveyor belt contacts the top of the outer surface of the movable snap ring, the conveyor belt can be adsorbed on the movable snap ring by negative pressure adsorption, so as to effectively avoid the conveyor belt from running off due to vibration during operation.

[0012] Furthermore, the distance between the outer surface of the pressure ring and the outer surface of the outer roller is greater than the thickness of the conveyor belt, thereby ensuring that when the conveyor belt deviates, it can produce a corresponding degree of squeezing action on the pressure ring in the corresponding direction.

[0013] Furthermore, a vent hole is opened on one side of the inner cavity of the inner ring groove along the axis thereof and connected to the right end of the outer roller, so that when the pressure ring moves left and right, the gas pressure in the inner cavity can be effectively balanced.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present application provides a belt conveyor deviation detection device. Regarding the setting of the deviation correction wheel, when the conveyor belt deviates and forces the pressure ring on the corresponding side to move outward, the position state between the two ends of the magnetic ring on the pressure ring and the two sets of magnetic shielding plates changes, causing the magnetic field strength of the magnetic ring passing through the magnetorheological fluid to increase, thereby increasing the sliding friction between the outer roller and the hollow shaft, and further causing the outer roller to decrease with the rotation speed of the conveyor belt, so as to force the conveyor belt to deviate to the other side to achieve the purpose of correcting its deviation. The setting of the mechanized structure makes the deviation correction device more adaptable and has a lower failure rate, and is not easily disturbed by external factors during the detection and correction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive work.

[0017] Figure 1 It is a layout view of the structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the present invention;

[0019] Figure 3 It is a partial front view of the structure of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the deviation-correcting wheel of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the outer roller of the present invention.

[0022] In the figure: 1-support leg, 2-connecting frame, 3-correcting wheel, 4-support wheel, 5-conveyor belt, 6-hollow shaft, 7-outer roller, 8-inner ring groove, 9-clamping groove, 10-connecting hole, 11-pressure ring, 12-elastic member, 13-magnetic ring, 14-magnetic shielding plate, 15-movable clamping ring, 16-waist-shaped hole. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 、 Figure 2 As shown, a belt conveyor deviation detection device includes a support leg 1 that can be fixedly installed at a specific position of the belt conveyor by bolts, a connecting frame 2 is fixedly installed on the top of the support leg 1, and a group of correcting wheels 3 are respectively provided on the left and right sides of the top of the connecting frame 2, and a group of supporting wheels 4 are provided in the middle of the top of the connecting frame 2. At the same time, the outer surfaces of the correcting wheels 3 and the supporting wheels 4 are in friction contact with the bottom end of the conveyor belt 5 to support the conveyor belt 5, as shown in FIG. Figure 3 、 Figure 4 as well as Figure 5 As shown, the correcting wheel 3 includes a hollow shaft 6 fixedly mounted on the top of the connecting frame 2, and an outer roller 7 is movably sleeved on the outer surface of the hollow shaft 6. An inner ring groove 8 is opened on one side of the inner interior of the outer roller 7, and a pressure ring 11 with an outer surface higher than the outer surface of the outer roller 7 is movably sleeved on the inner ring groove 8. The pressure ring 11 is transmission-connected to the outer roller 7 through an elastic member 12 movably sleeved on one side of the inner cavity of the inner ring groove 8, and under the elastic force of the elastic member 12, the end of the pressure ring 11 contacts the side end of the conveyor belt 5, and then when the conveyor belt 5 deviates to one side, the pressure ring 11 in the corresponding direction can be forced to move outward to squeeze the elastic member 12, so as to form a detection feedback whether the conveyor belt 5 on the belt conveyor deviates during operation.

[0025] like Figure 4 、 Figure 5As shown, in the present technical solution, two groups of slots 9 are provided inside the support leg 1 and on the right side of the inner ring groove 8, and magnetic shielding plates 14 are fixedly sleeved inside the two groups of slots 9. A magnetic ring 13 is fixedly installed on the inner wall of the pressure ring 11, and the two ends of the magnetic ring 13 are initially located on the two groups of magnetic shielding plates 14, respectively. The two groups of magnetic shielding plates 14 can then be used to limit and regulate the change in magnetic flux between the two ends of the magnetic ring 13 to form detection feedback.

[0026] In this technical solution, the gap formed by the inner wall of the outer roller 7 and the outer surface of the hollow shaft 6 is filled with magnetorheological fluid, and the sliding friction between the outer roller 7 and the hollow shaft 6 is adjusted by regulating the magnetic field strength passing through the magnetorheological fluid:

[0027] When the conveyor belt 5 deviates and forces the pressure ring 11 on the corresponding side to move outward, the position state between the two ends of the magnetic ring 13 on the pressure ring 11 and the two sets of magnetic shielding plates 14 changes, causing the magnetic field strength of the magnetic ring 13 passing through the magnetorheological fluid to increase, and the sliding friction between the outer roller 7 and the hollow shaft 6 to increase, thereby causing the outer roller 7 to rotate at a lower speed with the conveyor belt 5, and forcing the conveyor belt 5 to deviate to the other side to achieve the purpose of correcting its deviation.

[0028] like Figure 4 As shown, in the present technical solution, a plurality of groups of blind holes arranged in a circular array are provided in the middle of the outer surface of the hollow shaft 6 and in the gap formed by the inner wall of the outer roller 7 and the outer surface of the hollow shaft 6. When a magnetic field passes through the magnetorheological fluid, the magnetorheological fluid can effectively increase the sliding friction resistance between the hollow shaft 6 and the outer roller 7 after solidification.

[0029] like Figure 3 、 Figure 4 as well as Figure 5 As shown, in the present technical solution, one side of the outer surface of the hollow shaft 6 is movably sleeved with a movable snap ring 15 whose end is fixedly connected to the end face of the outer roller 7, and the outer diameter of the movable snap ring 15 is the same as the outer diameter of the outer roller 7, and a connecting hole 10 connected to its inner cavity is provided at the top of one side of the outer surface of the hollow shaft 6, and the other end of the hollow shaft 6 is connected to the negative pressure air pump. At the same time, a plurality of groups of waist-shaped holes 16 arranged in a ring array and connected to its inner cavity are provided on the outer surface of the movable snap ring 15. Then, under the action of the connecting hole 10, the movable snap ring 15 and the waist-shaped hole 16, when the bottom end of the conveyor belt 5 contacts the top of the outer surface of the movable snap ring 15, the conveyor belt 5 can be adsorbed on the movable snap ring 15 by means of negative pressure adsorption, so as to effectively prevent the conveyor belt 5 from running off due to vibration during operation.

[0030] In this technical solution, the distance between the outer surface of the pressure ring 11 and the outer surface of the outer roller 7 is greater than the thickness of the conveyor belt 5, thereby ensuring that when the conveyor belt 5 deviates, it can produce a corresponding degree of squeezing action on the pressure ring 11 in the corresponding direction.

[0031] like Figure 5 As shown, in this technical solution, a vent hole is opened on one side of the inner cavity of the inner ring groove 8 along the axis direction thereof and connected to the right end of the outer roller 7, so that when the pressure ring 11 moves left and right, the gas pressure in the inner cavity can be effectively balanced.

[0032] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt conveyor deviation detection device, comprising a support leg (1), a connecting frame (2) fixedly mounted on the top of the support leg (1), a set of correcting wheels (3) provided on the left and right sides of the top of the connecting frame (2), and a set of supporting wheels (4) provided in the middle of the top of the connecting frame (2), wherein the outer surfaces of the correcting wheels (3) and the supporting wheels (4) are in frictional contact with the bottom end of the conveyor belt (5), and characterized in that: The deflection-correcting wheel (3) comprises a hollow shaft (6) fixedly mounted on the top of the connecting frame (2), an outer roller (7) is movably sleeved on the outer surface of the hollow shaft (6), an inner ring groove (8) is provided on one side of the inner portion of the outer roller (7), and a pressure ring (11) is movably sleeved on the inner ring groove (8), the pressure ring (11) is transmission-connected between the outer roller (7) through an elastic member (12) movably sleeved on one side of the inner cavity of the inner ring groove (8), and under the elastic force of the elastic member (12), the end of the pressure ring (11) contacts the side end of the conveyor belt (5); Two groups of slots (9) are provided inside the support leg (1) and on the right side of the inner ring groove (8), and a magnetic shielding plate (14) is fixedly sleeved inside the two groups of slots (9). A magnetic ring (13) is fixedly installed on the inner wall of the pressure ring (11), and the two ends of the magnetic ring (13) are initially located on the two groups of magnetic shielding plates (14). The gap formed by the inner wall of the outer roller (7) and the outer surface of the hollow shaft (6) is filled with magnetorheological fluid, and the sliding friction between the outer roller (7) and the hollow shaft (6) is adjusted by regulating the magnetic field strength passing through the magnetorheological fluid. When the conveyor belt (5) deviates and forces the pressure ring (11) on the corresponding side to move outward, the position state between the two ends of the magnetic ring (13) on the pressure ring (11) and the two groups of magnetic shielding plates (14) changes.

2. The belt conveyor deviation detection device according to claim 1, characterized in that: A blind hole is provided in the middle of the outer surface of the hollow shaft (6) and in a gap formed between the inner wall of the outer roller (7) and the outer surface of the hollow shaft (6).

3. The belt conveyor deviation detection device according to claim 1, characterized in that: A movable snap ring (15) is movably sleeved on one side of the outer surface of the hollow shaft (6), the end of which is fixedly connected to the end face of the outer roller (7), and the outer diameter of the movable snap ring (15) is the same as the outer diameter of the outer roller (7). A connecting hole (10) connected to the inner cavity of the hollow shaft (6) is provided on the top of one side of the outer surface of the hollow shaft (6). At the same time, a plurality of waist-shaped holes (16) arranged in an annular array and connected to the inner cavity of the hollow shaft (6) are opened on the outer surface of the movable snap ring (15).

4. The belt conveyor deviation detection device according to claim 3, characterized in that: The distance between the outer surface of the pressing ring (11) and the outer surface of the outer roller (7) is greater than the thickness of the conveyor belt (5).

5. The belt conveyor deviation detection device according to claim 4, characterized in that: A vent hole is provided on one side of the inner cavity of the inner ring groove (8) along the axis thereof and connected to the right end of the outer roller (7).

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