High-load wear-resistant double-layer pipe body

Abstract

The utility model discloses a high-load wear-resistant double-layer pipe body which comprises an outer-layer pipe body and an inner-layer pipe body, inner-layer connecting convex ribs are evenly distributed on the outer wall of the inner-layer pipe body, and a concave inner-layer connecting groove is formed between every two adjacent inner-layer connecting convex ribs. Outer layer connecting grooves correspondingly matched with the inner layer connecting convex ribs are evenly distributed in the inner wall of the outer layer pipe body, and an outer layer connecting convex rib is formed between every two adjacent outer layer connecting grooves. The outer-layer pipe body has good impact resistance and extremely low friction coefficient, and is particularly suitable for working conditions of relatively severe environments such as low temperature and chemical corrosion; the strength and rigidity of the inner-layer pipe body are enhanced, a conveying belt and materials can be effectively supported, a framework function is formed, and the inner-layer pipe body is matched with a carrier roller to meet the conveying load requirement of equipment. After the two layers of pipe bodies are combined, the whole weight is light, the bearing load is high, the friction resistance is small, the reduction of the whole energy consumption of conveying equipment is facilitated, the service life of the carrier roller is ensured, and the strength requirements of corresponding bearing loads at present international and domestic can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of roller supporting parts, in particular to a high-load wear-resistant double-layer pipe body for protecting rollers. Background Art

[0002] Rollers are important components of belt conveyors, used to support the weight of the conveyor belt and materials. They are of various types and large in number, accounting for more than 35% of the total cost of a belt conveyor and can generate more than 70% of the resistance. The quality of the rollers is crucial to the performance and life of the belt conveyor. The outer tube is an important component of the roller and has the following two functions:

[0003] 1. Used to support the conveyor belt, ensure the smooth operation of the conveyor belt, and reduce the friction between the conveyor belt and the roller, thereby extending the life of the conveyor belt.

[0004] 2. It is used to protect the internal structure of the roller, such as bearings and shafts, to prevent dust, moisture, debris, etc. from entering the interior of the roller, thereby preventing erosion of its internal structure and helping to extend the service life of the roller.

[0005] The outer pipe bodies currently used are divided into single-layer and multi-layer structures. Among them, although the single-layer pipe body can ensure its strength, it cannot guarantee wear resistance, wears quickly, and requires frequent maintenance and replacement; although the wear resistance of the multi-layer pipe body can be effectively improved, it is affected by the impact force of transportation, especially when used in some harsh environments such as low temperature and chemical corrosion, it is easy to delaminate, and the maintenance cost is also high. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a high-load wear-resistant double-layer pipe body which is impact-resistant, has low friction resistance, good fusion, does not produce peeling phenomenon, and helps to ensure the service life of the roller.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a high-load and wear-resistant double-layer tube body, fixedly sleeved on the outside of the roller, including an outer tube body and an inner tube body fixedly sleeved, the outer wall of the inner tube body is evenly distributed with inner layer connecting ribs for increasing the fusion connection area with the outer tube body, and a concave inner layer connecting groove is formed between two adjacent inner layer connecting ribs, and the inner wall of the outer tube body is evenly distributed with outer layer connecting grooves corresponding to each of the inner layer connecting ribs, and an outer layer connecting rib is formed between two adjacent outer layer connecting grooves.

[0008] As a preferred technical solution, the inner connecting ribs are gradually widened from the outside to the inside, and the outer end surface of the inner connecting ribs is a curved surface.

[0009] As a preferred technical solution, the two outer corners of the inner layer connecting ribs are arranged in an arc-angle transition.

[0010] As a preferred technical solution, the contour of the outer layer connecting groove corresponds to the contour of the inner layer connecting rib.

[0011] As a preferred technical solution, the inner layer connecting groove is configured as an arc groove, and forms a smooth arc surface transition with the inner layer connecting rib.

[0012] As a preferred technical solution, the profile of the outer layer connecting rib corresponds to the profile of the inner layer connecting groove.

[0013] As a preferred technical solution, the outer tube body is configured as a high-density polyethylene tube body, and the inner tube body is configured as a reinforced polyethylene tube body fused with glass fiber.

[0014] As an improvement to the above technical solution, the inner wall of the inner tube body is evenly distributed with teeth and grooves for limiting assembly with rollers.

[0015] Due to the adoption of the above technical solution, a high-load and wear-resistant double-layer tube body is fixedly sleeved on the outside of the roller, including an outer tube body and an inner tube body fixedly sleeved, and the outer wall of the inner tube body is evenly distributed with inner layer connecting ribs for increasing the fusion connection area with the outer tube body, and a concave inner layer connecting groove is formed between two adjacent inner layer connecting ribs, and the inner wall of the outer tube body is evenly distributed with outer layer connecting grooves corresponding to each of the inner layer connecting ribs, and an outer layer connecting rib is formed between two adjacent outer layer connecting grooves; the utility model has the following beneficial effects: the outer tube body has good impact resistance and an extremely low friction coefficient, which can greatly reduce the resistance during transportation, and is especially suitable for relatively harsh environments such as low temperature, chemical corrosion and other working conditions; the inner tube body has enhanced strength and rigidity, can effectively support the conveyor belt and materials, forms a skeleton effect, and cooperates with the roller to meet the transportation load requirements of the equipment. After the two layers of pipe are combined, the overall weight is light, the load bearing capacity is high, and the friction resistance is small, which helps to reduce the overall energy consumption of the conveying equipment, helps to ensure the service life of the roller, and can meet the current international and domestic strength requirements for corresponding bearing loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0017] Figure 1 This is a schematic axial cross-sectional view of an embodiment of the present utility model;

[0018] Figure 2 It is a radial cross-sectional schematic diagram of an embodiment of the present utility model;

[0019] Figure 3yes Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0020] In the figure: 1-outer tube body; 2-inner tube body; 3-inner connecting ribs; 4-outer connecting ribs; 5-tooth grooves. DETAILED DESCRIPTION

[0021] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0022] like Figure 1 、 Figure 2 and Figure 3 As shown, a high-load, wear-resistant double-layer tube body is used on the rollers of a belt conveyor and is fixedly mounted on the outside of the roller. Specifically, it includes an outer tube body 1 and an inner tube body 2, which are fixedly mounted. The two tube layers are extruded and molded using hot-melt injection molding equipment to form a fixed set. The outer wall of the inner tube body 2 is uniformly distributed with inner layer connecting ribs 3 to increase the molten connection area with the outer tube body 1. A recessed inner layer connecting groove is formed between adjacent two inner layer connecting ribs 3. The inner wall of the outer tube body 1 is uniformly distributed with outer layer connecting grooves corresponding to each inner layer connecting rib 3. An outer layer connecting rib 4 is formed between adjacent two outer layer connecting grooves. Through the cooperation of the inner layer connecting rib 3 and the outer layer connecting groove, and the cooperation of the inner layer connecting groove and the outer layer connecting rib 4, the contact area of ​​the two layers of the tube body is greatly increased, so that the fusion connection strength between the two is high. Even if the tube body is worn out due to long-term use and is not discovered in time, it is difficult for the tube body layers to separate or even peel off. Therefore, the protection performance of the roller body is reliable and strong.

[0023] The inner connecting rib 3 is gradually widened from the outside to the inside, which can maximize the contact area between the outer tube body 1 and the inner tube body 2. The outer end surface of the inner connecting rib 3 is an arc surface, and the two outer corners of the inner connecting rib 3 are configured with an arc angle transition, so that the contact surface between the outer tube body 1 and the inner tube body 2 is smoother at the turning point, and the contact is tighter, so that interlayer separation or glass is less likely to occur. The contour of the outer connecting groove corresponds to the contour of the inner connecting rib 3, so that the outer tube body 1 and the inner tube body 2 are more tightly fused. The inner connecting groove is configured as an arc groove, and has a smooth arc transition with the inner connecting rib 3. The contour of the outer connecting rib 4 corresponds to the contour of the inner connecting groove, and the configuration method and purpose of the inner connecting rib 3 and the outer connecting groove are similar, so they will not be repeated here.

[0024] The outer tube body 1 is configured as a high-density polyethylene tube body, and the inner tube body 2 is configured as a reinforced polyethylene tube body fused with glass fiber. The reinforced polyethylene tube body is formed by adding a certain amount of glass fiber to high-density polyethylene to improve the strength of the entire tube body. This embodiment actually uses high-density polyethylene as the parent material and forms the outer tube body 1, so that the outer tube body 1 has good impact resistance and an extremely low friction coefficient, which can greatly reduce the resistance during transportation and is particularly suitable for relatively harsh environments such as low temperature, chemical corrosion and other working conditions. The reinforced polyethylene tube body modified by glass fiber reinforcement is used as the inner layer, which greatly enhances the strength and rigidity of the entire tube body, can effectively support the conveyor belt and materials, form a skeleton, and cooperate with the rollers to meet the conveying load requirements of the equipment. The two layers are extruded and synthesized using professional equipment, and the molten fixed connection effect is better when combined with the effect of effectively increasing the contact area.

[0025] The inner wall of the inner tube body 2 is uniformly distributed with tooth grooves 5 for limiting assembly with the rollers, forming a keyway-type meshing assembly with the rollers, so that the entire tube body and the rollers are relatively fixed with good effect, and the rollers are strongly protected, making it more suitable for use in harsh working conditions, thereby ensuring the service life of the rollers. The tube body formed in this embodiment is light in weight, can withstand high loads, and has low friction resistance, which helps reduce the overall energy consumption of the conveying equipment and can meet the current international and domestic strength requirements for corresponding bearing loads.

[0026] The description of the present invention is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. High load and wear-resistant double-layer tube, fixedly sleeved on the outside of the roller, characterized by: It includes an outer tube body and an inner tube body that are fixedly mounted in a suit. The outer wall of the inner tube body is evenly distributed with inner layer connecting ribs for increasing the fusion connection area with the outer tube body, and a concave inner layer connecting groove is formed between two adjacent inner layer connecting ribs. The inner wall of the outer tube body is evenly distributed with outer layer connecting grooves corresponding to each of the inner layer connecting ribs, and an outer layer connecting rib is formed between two adjacent outer layer connecting grooves.

2. The high-load wear-resistant double-layer pipe according to claim 1, characterized in that: The inner layer connecting ribs are gradually widened from the outside to the inside, and the outer end surfaces of the inner layer connecting ribs are arc surfaces.

3. The high-load wear-resistant double-layer pipe according to claim 2, characterized in that: The two outer corners of the inner layer connecting ribs are arranged in an arc angle transition.

4. The high-load wear-resistant double-layer pipe according to claim 2 or 3, characterized in that: The profile of the outer layer connecting groove corresponds to the profile of the inner layer connecting rib.

5. The high-load wear-resistant double-layer pipe according to claim 1, characterized in that: The inner layer connection groove is configured as an arc groove, and forms a smooth arc surface transition with the inner layer connection rib.

6. The high-load wear-resistant double-layer pipe according to claim 5, characterized in that: The profile of the outer layer connecting rib corresponds to the profile of the inner layer connecting groove.

7. The high-load wear-resistant double-layer pipe according to claim 1, characterized in that: The outer tube body is configured as a high-density polyethylene tube body, and the inner tube body is configured as a reinforced polyethylene tube body fused with glass fiber.

8. The high-load wear-resistant double-layer pipe according to claim 1, characterized in that: The inner wall of the inner tube body is evenly distributed with teeth and grooves for limiting assembly with rollers.

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