Belt conveyor capable of correcting deviation automatically

Abstract

The utility model discloses a belt conveyor capable of correcting deviation automatically. The belt conveyor comprises a plurality of straight and long rolling frames which are distributed along a conveying path at intervals. A plurality of rollers are erected on the rolling frame through corresponding supporting pieces, the overall pressing connection face of the rollers is matched with the bottom face of a conveying belt driven by a motor, the rollers comprise the left deviation rectifying roller and the right deviation rectifying roller which are arranged at the positions, close to the two ends, of the rolling frame, and the rollers further comprise a plurality of middle rollers which are arranged on the rolling frame at intervals and located between the two deviation rectifying rollers. The left deviation rectifying roller and the right deviation rectifying roller are circular-truncated-cone-shaped rollers with the large ends facing outwards; a spiral strip A is arranged on the left deviation rectifying roller, and a spiral strip B is arranged on the right deviation rectifying roller; when the conveying belt drags the two deviation rectifying rollers to rotate through friction force, the spiral propelling directions of the two spiral strips are both inward. And the structure is simple, the reliability is high, and the total cost of equipment is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors and relates to a belt conveyor capable of self-correcting deviation. Background Art

[0002] Belt conveyors are commonly used bulk material conveying equipment, and they have many specific forms. The most common structural forms are: Figure 1 , Figure 2 And refer to Figure 5 As shown, it includes a plurality of straight and long roller frames 1 distributed at intervals along the conveying path; a plurality of rollers are mounted on the roller frames 1 through corresponding supporting members, and the overall crimping surfaces of the plurality of rollers are adapted to the bottom surface of the conveyor belt 6 driven by the motor, and the plurality of rollers include cylindrical side rollers 2 arranged on the roller frame 1 near both ends, and also include a plurality of intermediate rollers 3 arranged on the roller frame 1 at intervals between the side rollers 2.

[0003] Belt conveyors using this technology can certainly be used, but their shortcomings are: there is no deviation correction function. If deviation correction is required, a special automatic control device must be added, which makes the overall device relatively complicated and the total equipment cost relatively significantly increased. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a belt conveyor capable of self-correction, which has a simple structure, high reliability, low total equipment cost and more ideal use effect.

[0005] The utility model adopts the following technical scheme to achieve the above-mentioned technical purpose: a self-correcting belt conveyor, comprising a plurality of straight and long roller frames spaced apart along a conveying path; a plurality of rollers are mounted on the roller frames through corresponding supporting members, and the overall crimping surfaces of the plurality of rollers are matched with the bottom surface of a conveying belt driven by a motor, the plurality of rollers comprising a left correcting roller and a right correcting roller arranged on the roller frames near both ends, and a plurality of intermediate rollers spaced apart on the roller frames and located between the two correcting rollers; the left correcting roller and the right correcting roller are truncated cone-shaped rollers with their large ends facing outwards; a spiral strip A is arranged on the left correcting roller, and a spiral strip B is arranged on the right correcting roller; when the conveying belt drags the two correcting rollers to rotate through friction, the spiral propulsion directions of the two spiral strips are both inwards.

[0006] The beneficial effects of the utility model are as follows: due to the adoption of the above structure, the utility model has the following advantages: self-correction, simple structure, high reliability, low total equipment cost and more ideal use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1It is a three-dimensional omitted schematic diagram of a belt conveyor in the prior art;

[0009] Figure 2 It is a planar schematic diagram of a belt conveyor in the prior art;

[0010] Figure 3 It is a three-dimensional omitted schematic diagram of the utility model;

[0011] Figure 4 It is a planar omitted schematic diagram of the utility model;

[0012] Figure 5 It is a schematic diagram of the deviation correction principle of the utility model.

[0013] The reference numerals in the accompanying drawings are as follows: roller frame 1, side roller 2, middle roller 3, left correction roller 4A, right correction roller 4B, spiral strip A 5A, spiral strip B 5B, conveyor belt 6, left correction force F1, right correction force F2 DETAILED DESCRIPTION

[0014] The embodiments of the present utility model are as follows: Figure 3 , Figure 4 , Figure 5 As shown, a self-correcting belt conveyor includes a plurality of straight and long roller frames 1 distributed at intervals along the conveying path; a plurality of rollers are mounted on the roller frames 1 through corresponding supporting members, and the overall crimping surfaces of the plurality of rollers are adapted to the bottom surface of a conveyor belt 6 driven by a motor, and the plurality of rollers include a left correcting roller 4A and a right correcting roller 4B arranged near both ends of the roller frame 1, and also include a plurality of intermediate rollers 3 arranged at intervals on the roller frame 1 and located between the two correcting rollers; the left correcting roller 4A and the right correcting roller 4B are truncated cone-shaped rollers with the large ends facing outwards; a spiral strip 5A is arranged on the left correcting roller 4A, and a spiral strip 5B is arranged on the right correcting roller 4B; when the conveyor belt 6 drags the two correcting rollers to rotate through friction, the spiral propulsion directions of the two spiral strips are both inwards.

[0015] The working principle of the utility model is as follows: when the belt conveyor is working, the conveyor belt 6 rotates by dragging the two deflection correcting rollers by friction, and the two deflection correcting rollers drive the corresponding spiral strips to rotate, and the direction of the spiral strips' rotational propulsion is inward. When the conveyor belt 6 deviates to the right, the length of the right side of the conveyor belt 6 belt body pressed into the right deflection correcting roller 4B will be greater than the length of the left side of the conveyor belt 6 belt body pressed into the left deflection correcting roller 4A. Since the deflection correcting roller is a truncated cone-shaped roller with the large end facing outward, the larger the corresponding circumference of the outermost cylinder portion, the greater the rotational thrust of the corresponding spiral strip will be, the right deflection correcting force F2 will be greater than the left deflection correcting force F1, and the conveyor belt 6 will automatically move to the center, so that the difference between the right deflection correcting force F2 and the left deflection correcting force F1 is minimized as much as possible. When the conveyor belt 6 deviates to the left, it can be pushed in the same way, thereby realizing self-correction.

[0016] During implementation, it is not necessary to set a deflection correction roller on each roller frame 1. Deflection correction rollers can be set at intervals on corresponding roller frames 1. As long as the deflection correction of the conveyor belt 6 can be satisfied, the number of deflection correction rollers should be as small as possible to reduce equipment cost.

Claims

1. A belt conveyor capable of self-correction, comprising a plurality of straight and long roller frames spaced apart along a conveying path; a plurality of rollers are mounted on the roller frames through corresponding supporting members, and the integral pressing surfaces of the plurality of rollers are adapted to the bottom surface of a conveyor belt driven by a motor, characterized in that: The multiple rollers include a left correcting roller and a right correcting roller arranged on the roller frame near the two ends, and also include a plurality of intermediate rollers arranged on the roller frame between the two correcting rollers at intervals; the left correcting roller and the right correcting roller are truncated cone-shaped rollers with the large ends facing outwards; the left correcting roller is provided with a spiral strip A, and the right correcting roller is provided with a spiral strip B; when the conveyor belt drags the two correcting rollers to rotate through friction, the spiral propulsion directions of the two spiral strips are both inwards.

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