Carrier roller of belt conveyor

Abstract

The utility model discloses a carrier roller of a belt conveyer, which relates to the field of belt conveying of materials in ore crushing workshops and comprises a cylindrical roller, threaded teeth are arranged on the outer circumferential surface of the roller, and a scraper-knife-shaped blade included angle alpha formed by the junction of the tooth crests and the tooth walls of the threaded teeth is an acute angle; and sticky materials on the surface of the belt of the belt conveyor can be effectively cleaned.

Description

Technical Field

[0001] The utility model relates to the field of belt transportation of materials in a crushing workshop, in particular to a belt conveyor roller. Background Art

[0002] The slag in the crushing workshop is transported by belt conveyor. Return rollers are set at the return position of the belt conveyor, that is, below the entire belt. The return rollers are cylindrical rollers like the rollers at other positions. The return rollers can support the belt and clean the sticky material on the belt surface.

[0003] Because the rollers of traditional belt conveyors are cylindrical, they have a large contact area with the belt and are subject to significant wear. If wear occurs anywhere on the contact surface, the entire roller must be replaced, increasing costs and workload. Furthermore, if the belt becomes sticky, wear on both the belt and the roller increases, which can easily cause the belt to deviate, leading to safety accidents and seriously impacting production safety and stability.

[0004] The "Rubber Spiral Cleaning Roller" (document number CN202912313U) discloses a technical solution featuring left-hand and right-hand trapezoidal threads on the outer circumference of a steel roller. The threads have flat tops, with angular transitions between the tops and the flanks. The angle formed between the tops and the flanks is obtuse, pushing and squeezing the material stuck to the belt, making it difficult to completely clean it. Furthermore, the roller can only rotate in one direction to push the material from both ends. Rotating in the other direction squeezes the material onto the belt where the left-hand and right-hand trapezoidal threads meet, damaging the belt over time. Utility Model Content

[0005] The utility model aims to provide a belt conveyor roller to effectively clean sticky materials on the belt surface.

[0006] The utility model can be implemented through the following technical scheme: a belt conveyor roller, comprising a cylindrical roller, wherein threaded teeth are arranged on the outer circumferential surface of the roller, the scraper-shaped blade angle α formed by the intersection of the tooth top of the threaded teeth and the tooth wall is an acute angle, and the surface where the tooth top is located is parallel to the axis core of the roller.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] The scraper-shaped blade formed by the intersection of the tooth top and the tooth wall will scrape off the sticky material on the belt surface, thereby cleaning the belt surface. Keeping the belt surface clean can reduce the wear of the belt and the roller, thereby preventing the belt from deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the roller in Example 1;

[0010] Figure 2 Schematic diagram of the cross-sectional structure of the roller in Example 1;

[0011] Figure 3 This is a schematic diagram of the cross-sectional structure of the roller in Example 2. DETAILED DESCRIPTION Example

[0012] See also Figure 1-2 As shown, a belt conveyor roller includes a cylindrical roller 10, with threaded teeth 20 provided on the outer circumferential surface of the roller 10. The angle α formed by the intersection of the tooth top 21 of the threaded teeth 20 and the tooth wall 22 is an acute angle, and the surface where the tooth top 21 is located is parallel to the axis of the roller 10;

[0013] In the above, the thread tooth 20 is a thread with a tooth-shaped cross-section, and an arc surface is formed at the tooth top 21 of the thread tooth 20. The arc surface is the outer peripheral surface of the thread tooth 20, and the surface passing through the axis of the roller 10 intersects with the arc surface. The intersection line is the position of the tooth top 21, and the intersection line is parallel to the axis of the roller 10; since the blade angle α is an acute angle, the position where the tooth top 21 and the tooth wall 22 intersect is equivalent to forming a scraper-shaped blade. When the roller 10 rotates, the thread tooth 20 rotates with the roller 10, and the scraper-shaped blade formed by the intersection of the tooth top 21 and the tooth wall 22 will scrape off the sticky material on the belt surface, thereby cleaning the belt surface. Keeping the belt surface clean can reduce the wear of the belt and the roller, thereby preventing the belt from deviation.

[0014] The tooth top 21 of the threaded teeth 20 and the tooth walls 22 on both sides form a bidirectional tooth edge; through the forward and reverse rotation of the roller 10, the sticky material scraped off from the belt surface by the threaded teeth 20 can be discharged from both ends of the roller 10, and the sticky material at a certain position on the belt surface can also be scraped off from two directions in succession, thereby improving the cleaning effect of the belt surface.

[0015] The thread teeth 20 are trapezoidal in shape, with wide tops 21 and narrow roots. This arrangement facilitates the sliding of adhesive material along the tooth walls 22 of the thread teeth 20, thereby reducing the accumulation of adhesive material on the blade.

[0016] The tooth tops 21 of the threaded teeth 20 are all of equal height; this can increase the contact area between the roller and the belt, improve the supporting effect of the roller on the belt, and also enable the blades on the threaded teeth 20 to remove sticky materials on the belt surface.

[0017] The blade angle α is 45°-60°; the blade at this angle ensures the effect of removing sticky materials while also ensuring the strength of the thread teeth 20. Example

[0018] See also Figure 3 As shown, a belt conveyor roller is different from Example 1 in that the tooth tops 21 of the thread teeth 20 are arranged in different heights. This can be understood as follows: the distance between the tooth tops 21 of each circle of thread teeth 20 and the axis of the roller 10 is unequal, and when viewed from one end of the roller 10 toward the thread teeth 20, the tooth tops 21 form an elliptical circle; or there is a concave area on the outer circumference of the thread teeth 20, so that the height of the tooth tops 21 is inconsistent.

[0019] With this arrangement, the blades formed by the tooth tops 21 and tooth walls 22 of different heights can remove the sticky material at the corresponding height, so that the blades on the threaded teeth 20 can gradually remove the sticky material adhering to the belt surface, avoiding the threaded teeth 20 removing larger particles of sticky material at one time, which causes the sticky material to be blocked in the tooth groove. At the same time, it also reduces the contact area between the roller and the belt surface, thereby reducing the wear between the two.

Claims

1. A belt conveyor roller, comprising a cylindrical roller (10), wherein the outer circumferential surface of the roller (10) is provided with threaded teeth (20), characterized in that: The blade angle α of the scraper-shaped blade formed by the intersection of the tooth top (21) of the threaded tooth (20) and the tooth wall (22) is an acute angle, and the surface where the tooth top (21) is located is parallel to the axis of the roller (10).

2. The belt conveyor roller according to claim 1, characterized in that: The tooth top (21) of the threaded tooth (20) and the tooth walls (22) on both sides form a bidirectional tooth edge.

3. The belt conveyor roller according to claim 1, characterized in that: The threaded teeth (20) are trapezoidal in shape with wide tooth tops (21) and narrow tooth roots.

4. The belt conveyor roller according to claim 1, characterized in that: The blade angle α is 45°-60°.

5. The belt conveyor roller according to any one of claims 1, 2, 3, and 4, characterized in that: The tooth tops (21) of the thread teeth (20) are all of equal height.

6. The belt conveyor roller according to any one of claims 1, 2, 3, and 4, characterized in that: The tooth tops (21) of the threaded teeth (20) are arranged in a high and low arrangement.

Images