A cold-drawn seamless tube for mining equipment

Abstract

The utility model belongs to metal tubular product technical field especially relates to a kind of cold-drawn seamless tube for special mining equipment, including outer tube body and inner tube body, the inner tube body outer circumferential side is provided with multiple annular annular clamping plate, inner tube body outer circumferential side is provided with multiple vertical direction's warp plate, warp plate and annular clamping plate are enclosed and are separated multiple sealed chambers, sealed chamber is filled with non-newtonian fluid damping medium.The utility model effectively prevents fatigue crack, this multi-chamber structure is while realizing high rigidity, high strength, avoids simply increasing wall thickness, achieves lightweight goal, reduces equipment weight and cost.

Description

Technical Field

[0001] This utility model belongs to the field of metal pipe technology, and in particular relates to a cold-drawn seamless pipe for use in mining equipment. Background Technology

[0002] In mining operations, many pieces of equipment not only endure static high pressure, but are also frequently subjected to strong dynamic impacts and vibrations. Such impact loads can easily cause fatigue cracks, permanent bending deformation, or loosening of joints in ordinary single-layer seamless steel pipes, leading to safety accidents and equipment shutdowns.

[0003] Existing solutions typically involve increasing the pipe wall thickness, but this leads to a significant increase in equipment weight and cost, and has limited effectiveness in mitigating high-frequency vibrations. Some composite pipes also employ an inner and outer two-layer structure, but these are mostly static pressure-bearing or corrosion-resistant designs, resulting in poor damping and vibration reduction effects, and failing to effectively absorb and disperse impact energy. Therefore, there is an urgent need for a seamless mining steel pipe that is fundamentally structurally improved, can effectively buffer and disperse impact energy, and maintains high pressure resistance and lightweight characteristics. Utility Model Content

[0004] The purpose of this invention is to provide a cold-drawn seamless tube for mining equipment to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts a cold-drawn seamless tube for mining equipment, comprising an outer tube body and an inner tube body. The outer periphery of the inner tube body is provided with multiple annular clamping plates, and the outer periphery of the inner tube body is provided with multiple vertical warp plates. The junction of the warp plates and the annular clamping plates separates multiple sealed chambers, and the sealed chambers are filled with a non-Newtonian fluid damping medium.

[0006] Preferably, the outer tube body is provided with multiple insertion tubes and slots on both sides to facilitate the connection and fixation between multiple tubes.

[0007] Preferably, the non-Newtonian fluid damping medium is a shear-thickening fluid.

[0008] Preferably, the outer surface of the outer tube is provided with multiple anti-slip blocks.

[0009] Preferably, an elastic sealing ring is embedded in the slot.

[0010] Preferably, the inner wall surface of the inner tube has a hardened layer formed by cold drawing, and the outer surface of the outer tube is covered with a corrosion-resistant metal coating or a wear-resistant non-metal coating.

[0011] Preferably, the annular plate, the warp plate, and the inner tube are integrally formed by a cold drawing process.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention creatively constructs a highly efficient damping structure by setting a sealed chamber composed of an annular retaining plate and a warp plate between the inner and outer pipe bodies and filling it with a non-Newtonian fluid. When subjected to impact, the fluid instantly thickens, converting the impact kinetic energy into internal energy dissipation, greatly improving the pipe body's impact resistance and vibration reduction capabilities, and effectively preventing fatigue cracks. This multi-chamber structure achieves high rigidity and high strength while avoiding simply increasing the wall thickness, thus achieving the goal of lightweighting and reducing equipment weight and cost. In addition, the pre-set insertion tubes and slots on both sides of the pipe body enable quick and reliable modular connections, effectively preventing joint loosening, significantly improving installation efficiency and overall system stability, and comprehensively solving the safety and durability problems of mining high-pressure pipelines under harsh working conditions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A three-dimensional view of the overall structure of a cold-drawn seamless tube specifically designed for mining equipment; Figure 2 This is a side view of a cold-drawn seamless tube specifically designed for mining equipment. Figure 3 This is a schematic diagram of the internal structure of the outer tube.

[0015] In the above figures, 1. outer tube, 2. anti-slip block, 3. inner tube, 4. insert tube, 5. slot, 6. annular retaining plate, 7. warp plate. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1, as Figure 1-3As shown, the specific design of the aforementioned key components is described below: A cold-drawn seamless tube for mining equipment includes an outer tube body 1 and an inner tube body 3. Multiple annular clamping plates 6 are arranged on the outer periphery of the inner tube body 3, and multiple vertical warp plates 7 are arranged on the outer periphery of the inner tube body 3. Multiple sealed chambers are separated at the junction of the warp plates 7 and the annular clamping plates 6, and each sealed chamber is filled with a non-Newtonian fluid damping medium. When the tube body is subjected to external dynamic impact or high-frequency vibration, the impact energy is transmitted through the outer tube body 1, causing instantaneous deformation of the medium within the sealed chambers enclosed by the annular clamping plates 6 and the warp plates 7. When subjected to severe shear, the viscosity of the non-Newtonian fluid damping medium filling the sealed chambers increases sharply, changing from a liquid to a near-solid state within milliseconds, thereby greatly hindering and consuming the impact energy, converting destructive mechanical energy into internal energy. This process efficiently buffers and disperses the impact, protecting the inner tube body 3 as the main pressure-bearing channel. Effectively avoiding the weight and cost burden of simply increasing wall thickness in traditional methods, its multi-chamber damping structure not only significantly absorbs impact energy, suppresses vibration, and greatly reduces the risk of fatigue cracks, thereby extending pipeline life, but also enhances the overall rigidity of the pipe body. Furthermore, the modular connection design further ensures the safety and reliability of the entire pipeline system under harsh operating conditions, providing an innovative and efficient solution to the dynamic failure problem of high-pressure pipelines in mining equipment.

[0019] Multiple insertion tubes 4 and slots 5 are provided on both sides of the outer tube body 1 to facilitate the connection and fixation between multiple tubes. The non-Newtonian fluid damping medium is a shear-thickening fluid. Multiple anti-slip blocks 2 are provided on the outer surface of the outer tube body 1, and elastic sealing rings are embedded in the slots 5. The inner wall surface of the inner tube body 3 has a hardened layer formed by cold drawing. The outer surface of the outer tube body 1 is covered with a corrosion-resistant metal coating or a wear-resistant non-metal coating. The annular retaining plate 6 and the warp plate 7 are integrally formed with the inner tube body 3 by a cold drawing process. When an external impact load is applied to the outer tube body 1 covered with a wear-resistant or corrosion-resistant coating, the energy is transferred to the shear-thickening fluid in the sealed chamber through the integrally formed annular retaining plate 6 and the warp plate 7. The viscosity of this fluid increases dramatically at an instantaneous high shear rate, changing from a liquid state to a near-solid state, thereby efficiently converting and dissipating the impact kinetic energy into internal energy. Meanwhile, the cold-drawn hardened layer of the inner tube 3 ensures the smoothness and robustness of the pressure-bearing channel, while the insertion tubes 4 and slots 5 at both ends of the tube body, protected by elastic sealing rings, achieve a tight and leak-proof connection between modules, integrating multiple sections of the pipe into a continuous whole that can collaboratively resist impact. Through the above design, this utility model provides excellent dynamic buffering and vibration reduction capabilities through the shear thickening fluid and the chamber structure, significantly improving impact resistance and extending fatigue life. The one-piece molding process ensures the high strength and integrity of the internal damping structure, while the inner wall hardened layer and the outer wall coating respectively improve pressure resistance, wear resistance, and corrosion resistance, achieving multi-functional protection. The modular insertion structure and built-in sealing rings make installation quick and reliable, and the anti-slip block 2 enhances stability during use, ultimately forming a lightweight, highly durable, and safe mining pipe.

[0020] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cold-drawn seamless tube specifically for mining equipment, characterized in that, It includes an outer tube and an inner tube. The outer periphery of the inner tube is provided with multiple annular retaining plates and multiple vertical meridian plates. The junction of the meridian plates and the annular retaining plates separates multiple sealed chambers, which are filled with a non-Newtonian fluid damping medium.

2. The cold-drawn seamless tube for mining equipment according to claim 1, characterized in that, The outer tube has multiple insertion tubes and slots on both sides to facilitate the connection and fixation of multiple tubes.

3. A cold-drawn seamless tube for mining equipment according to claim 2, characterized in that, The non-Newtonian fluid damping medium is a shear-thickening fluid.

4. A cold-drawn seamless tube for mining equipment according to claim 3, characterized in that, The outer surface of the outer tube is provided with multiple anti-slip blocks.

5. A cold-drawn seamless tube for mining equipment according to claim 4, characterized in that, An elastic sealing ring is embedded in the slot.

6. A cold-drawn seamless tube for mining equipment according to claim 5, characterized in that, The inner wall surface of the inner tube has a hardened layer formed by cold drawing, and the outer surface of the outer tube is covered with a corrosion-resistant metal coating or a wear-resistant non-metal coating.

7. A cold-drawn seamless tube for mining equipment according to claim 6, characterized in that, The annular plate, warp plate, and inner tube are integrally formed by cold drawing.

Images