Anti-slip device of belt conveyor

Abstract

The utility model relates to the technical field of anti-slip of belt conveyors, and particularly discloses an anti-slip device of a belt conveyor, which comprises a permanent magnet variable frequency motor, a driving roller is arranged on an output shaft of the permanent magnet variable frequency motor, the driving roller is rotatably arranged on a support rod, a belt is wound on the driving roller, and a tensioning mechanism is arranged on the belt. The supporting rod is arranged on the bottom plate, and a wrap angle roller is arranged on one side of the driving roller in a matched mode. Roll necks at the two ends of the wrap angle roller are arranged on the first inclined rods. The bottom surface of the inclined rod I is tangent to the outer wall of the driving roller; the inclined rod I is arranged on the bottom plate; an acute included angle is formed between the first inclined rod and the bottom plate. Compared with the prior art, the contact area of the belt on the driving roller can be guaranteed, the slipping phenomenon of the belt on the driving roller is reduced, and it is guaranteed that the tensioning force of the belt is adjusted in time through the permanent magnet variable frequency motor.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-skid of belt conveyors, and particularly discloses an anti-skid device for belt conveyors. Background Art

[0002] At present, long-distance, large-capacity, high-speed, and high-power belt conveyors are widely used in the field of port transportation. However, in the process of transporting grain, the traditional asynchronous motor + reducer drive method cannot adjust the speed of the belt conveyor in real time, and thus cannot cooperate with the belt scale on the belt. It cannot adjust the speed according to the weight of the grain transported by the belt conveyor. The belt conveyor can only run at a constant speed. When the amount of grain transported is small, it causes a waste of belt conveyor capacity, reduces grain transportation efficiency, is not conducive to saving transportation costs for enterprises, and the waste of transportation resources is not conducive to system energy saving and protection of the ecological environment. Therefore, the method of replacing the traditional motor with a permanent magnet motor system to achieve real-time speed regulation of the belt has been promoted and used.

[0003] However, when a belt conveyor driven by a permanent magnet motor is in operation, it is still necessary to ensure that the belt and roller are always in contact with each other to ensure that the adjustment of the permanent magnet motor can be reflected in real time. To solve this problem, patent publication number CN218173566U discloses a belt conveyor tension adjustment device, which is composed of an actuator, a frequency conversion control system, and a hydraulic power structure. The actuator includes a permanent magnet motor with an integrated brake, a speed reducer, a roller, a wire rope, and a tension sensor. The permanent magnet motor electrically connected to the frequency conversion control system serves as a drive, which drives the roller to rotate through the speed reducer. The roller is wrapped with a wire rope, which is equipped with a tension sensor. One end of the wire rope is connected to the traveling trolley of the belt conveyor, and the other end of the wire rope is connected to the hydraulic power structure.

[0004] In the above solution, the belt tension can be adjusted, but the active roller driven by the permanent magnet motor still slips, and the permanent magnet motor still adjusts the belt tension asynchronously. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides an anti-skid device for a belt conveyor to solve the problem that the active roller driven by the permanent magnet motor still slips and the permanent magnet motor still has asynchronous adjustment of the belt tensioning force.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A belt conveyor anti-skid device includes a permanent magnet variable frequency motor, the output shaft of which is provided with a driving roller, the driving roller being rotatably mounted on a support rod, a belt being wound around the driving roller, a belt being provided with a tensioning mechanism, the support rod being mounted on a base plate, and an angle roller being provided on one side of the driving roller; the roller necks at both ends of the angle roller being mounted on a first inclined rod; the bottom surface of the first inclined rod being tangent to the outer wall of the driving roller; the first inclined rod being mounted on the base plate; and the angle roller being arranged at an acute angle to the base plate. During use, the angle roller is mounted on the first inclined rod, and the belt passes over the driving roller and then under the angle roller, thereby ensuring the belt's contact area on the driving roller, reducing the belt's slippage on the driving roller, and ensuring that the permanent magnet variable frequency motor can adjust the belt's tensioning force in a timely manner.

[0008] Preferably, the roller neck of the angle roller is rotatably mounted on a slider 1, which is slidably mounted on a diagonal rod 1. An adjustment assembly is mounted on the diagonal rod 1. The adjustment assembly is used to adjust the position of the slider 1 on the diagonal rod 1 to ensure the contact area of the belt on the active roller.

[0009] Preferably, a fixing rod 1 is fixedly arranged between the upper end of the oblique rod 1 and the bottom plate to ensure that the oblique rod 1 is firmly arranged.

[0010] Preferably, the inclined rod (1) is provided with a slide groove; the adjustment assembly includes a mounting plate (1) fixedly mounted on the upper end of the inclined rod (1); a lead screw (1) is threadedly mounted on the mounting plate (1); and the lower end of the lead screw is rotatably mounted on a slider (1). The lead screw (1) can be used to drive the position of the slider (1) within the inclined rod (1) to ensure the contact area of the belt on the active roller.

[0011] Preferably, the tensioning mechanism includes a steering roller mounted on the second diagonal rod; the belt passes around the steering roller and then around the tensioning roller; the tensioning roller is rotatably mounted on a slide; the slide is slidably mounted on a base; a steel wire rope is connected to the slide; the steel wire rope passes around a pulling assembly and is fixed to a fixed base. The pulling assembly is used to drive the slide to move, thereby tensioning the belt.

[0012] Preferably, the pulling assembly includes a pulling wheel; a belt is wound around the pulling wheel; the pulling wheel is rotatably arranged on a pulling seat; the pulling seat is fixedly arranged on the piston rod of the oil cylinder; the oil cylinder is connected to a hydraulic station; and a fixed seat is arranged between the oil cylinder and the base.

[0013] The beneficial effects of the utility model are as follows: when in use, the angle roller is set on the inclined rod 1, and the belt passes over the upper part of the active roller and then passes under the angle roller, thereby ensuring the contact area of the belt on the active roller, reducing the slippage of the belt on the active roller, and ensuring that the permanent magnet variable frequency motor adjusts the belt tensioning force in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the utility model at the active roller;

[0017] Figure 3 This is a schematic cross-sectional view of the active roller of the utility model;

[0018] Figure 4 It is a schematic diagram of the bottom plate, the first diagonal rod, the first fixed rod, the second diagonal rod and the second fixed rod of the utility model.

[0019] Description of reference numerals:

[0020] 1-permanent magnet variable frequency motor, 2-active roller, 3-support rod, 4-belt, 5-angle roller, 6-oblique rod 1, 7-slider 1, 8-base plate, 9-fixed rod 1, 10-mounting plate 1, 11-screw 1, 12-steering roller, 13-oblique rod 2, 14-tensioning roller, 15-slide plate, 16-base, 17-wire rope, 18-fixed seat, 19-traction wheel, 20-traction seat, 21-oil cylinder, 22-hydraulic station, 23-fixed rod 2, 24-slider 2, 25-mounting plate 2, 26-screw 2; 601-slide. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described 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 should fall within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1-4As shown, a belt conveyor anti-skid device includes a permanent magnet variable frequency motor 1, the output shaft of which is provided with a driving roller 2, which is rotatably mounted on a support rod 3, a belt 4 wound around the driving roller 2, a tensioning mechanism provided on the belt 4, the support rod 3 being mounted on a bottom plate 8, and a corner roller 5 being provided on one side of the driving roller 2; the roller necks of both ends of the corner roller 5 are both mounted on a diagonal rod 1 6; the bottom surface of the diagonal rod 1 6 is tangent to the outer wall of the driving roller 2; the diagonal rod 1 6 is mounted on the bottom plate 8; and the diagonal rod 1 6 and the bottom plate 8 are arranged at an acute angle. When in use, the corner roller 5 is mounted on the diagonal rod 1, and the belt 4 passes over the driving roller 2 and then passes under the corner roller 5, thereby ensuring the contact area of the belt 4 on the driving roller 2, reducing the slippage of the belt 4 on the driving roller 2, and ensuring that the permanent magnet variable frequency motor 1 adjusts the tensioning force of the belt 4 in a timely manner. The belt 4 passes around the angle roller 5 and is then wound around a plurality of conveying rollers. The plurality of conveying rollers are arranged at intervals and are parallel to each other (not shown in the figure).

[0024] In the above configuration, the tensioning mechanism includes a steering roller 12, which is mounted on a second diagonal rod 13. The belt 4 passes around the steering roller 12 and then around the tensioning roller 14. The tensioning roller 14 is rotatably mounted on a slide 15, which is slidably mounted on a base 16. A steel wire rope 17 is connected to the slide 15, which passes around a pulling assembly and is then fixed to a fixed seat 18. The pulling assembly drives the slide 15 to move, thereby tensioning the belt 4. The bottom surface of the slide 15 is mounted on a slider of a guide rail, which is fixed to the base 16. The pulling assembly includes a pulling wheel 19, around which the belt 4 is wound. The pulling wheel 19 is rotatably mounted on a pulling seat 20, which is fixed to the piston rod of a cylinder 21. The cylinder 21 is connected to a hydraulic station 22. The fixed seat 18 is disposed between the cylinder 21 and the base 16. The axis of the cylinder 21 is perpendicular to the axis of the active roller 2.

[0025] The roller neck of the steering roller 12 is rotatably mounted on a second slider 24, which is slidably mounted in a slot of the second inclined rod 13. The lower end of a second lead screw 26 is rotatably mounted on the second slider 24. The lead screw 26 is threadedly mounted on a second mounting plate 25, which is fixedly mounted on the second inclined rod 13. The second inclined rod 13 is mounted on the base plate 8 via a second fixing rod 23.

[0026] Example 2

[0027] Based on Example 1, the roller neck of the angle roller 5 is rotatably mounted on a slider 7; the slider 7 is slidably mounted on a diagonal rod 6; and an adjustment assembly is provided on the diagonal rod 6. The adjustment assembly is used to adjust the position of the slider 7 within the diagonal rod 6 to ensure the contact area of the belt 4 on the active roller 2. A fixing rod 9 is fixedly mounted between the upper end of the diagonal rod 6 and the base plate 8. This ensures that the diagonal rod 6 is securely mounted. A slide groove 601 is provided on the diagonal rod 6; the adjustment assembly includes a mounting plate 10 fixedly mounted on the upper end of the diagonal rod 6; a screw 11 is threadedly mounted on the mounting plate 10; the lower end of the screw 11 is rotatably mounted on the slider 7, and the screw 11 can be used to drive the position of the slider 7 within the diagonal rod 6 to ensure the contact area of the belt 4 on the active roller 2. The diagonal rod 6 and the diagonal rod 2 13 are symmetrically arranged.

[0028] The rotational connection between the lead screw 11 and the slider 1 7 and the rotational connection between the lead screw 2 26 and the slider 2 24 belong to the prior art and will not be described in detail here.

[0029] Although the present invention has been described in detail with reference to the accompanying drawings and in conjunction with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, persons of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall be within the scope of the present invention. Any changes or substitutions that can be easily conceived by persons skilled in the art within the technical scope disclosed in the present invention shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A belt conveyor anti-skid device, comprising a permanent magnet variable frequency motor (1), an output shaft of the permanent magnet variable frequency motor (1) is provided with an active roller (2), the active roller (2) is rotatably provided on a support rod (3), a belt (4) is wound around the active roller (2), a tensioning mechanism is provided on the belt (4), and the support rod (3) is provided on a bottom plate (8), characterized in that: An angled roller (5) is provided on one side of the active roller (2); roller necks at both ends of the angled roller (5) are provided on an inclined rod (6); the bottom surface of the inclined rod (6) is provided tangent to the outer wall of the active roller (2); the inclined rod (6) is provided on a bottom plate (8); and an acute angle is formed between the inclined rod (6) and the bottom plate (8).

2. The anti-slip device for belt conveyor according to claim 1, characterized in that: The roller neck of the angle roller (5) is rotatably arranged on a slider (7); the slider (7) is slidably arranged on an inclined rod (6); and an adjustment component is arranged on the inclined rod (6).

3. The anti-slip device for belt conveyor according to claim 2, characterized in that: A fixing rod (9) is fixedly arranged between the upper end of the oblique rod (6) and the bottom plate (8).

4. The anti-slip device for belt conveyor according to claim 3, characterized in that: A slide groove (601) is provided on the inclined rod (6); the adjustment component includes a mounting plate (10) fixedly provided on the upper end of the inclined rod (6); a screw (11) is threadedly provided on the mounting plate (10); and the lower end of the screw (11) is rotatably provided on the slider (7).

5. The anti-slip device for belt conveyor according to claim 1, characterized in that: The tensioning mechanism includes a steering roller (12); the steering roller (12) is arranged on the second inclined rod (13); the belt (4) is wound around the steering roller (12) and then wound around the tensioning roller (14); the tensioning roller (14) is rotatably arranged on the slide plate (15); the slide plate (15) is slidably arranged on the base (16); a steel wire rope (17) is connected to the slide plate (15); the steel wire rope (17) is fixedly arranged on the fixing seat (18) after passing around the pulling component.

6. The anti-slip device for belt conveyor according to claim 5, characterized in that: The pulling assembly includes a pulling wheel (19); a belt (4) is wound around the pulling wheel (19); the pulling wheel (19) is rotatably mounted on a pulling seat (20); the pulling seat (20) is fixedly mounted on a piston rod of an oil cylinder (21); the oil cylinder (21) is connected to a hydraulic station (22); and a fixed seat (18) is disposed between the oil cylinder (21) and the base (16).

Images