Composite layer wear resistant bond pipe

Abstract

The application relates to a composite layer wear-resistant Bundy tube and relates to the field of Bundy tubes. The Bundy tube comprises a Bundy tube body and a supporting piece, the Bundy tube body is composed of a metal tube body, a wear-resistant lining and an outer coating, the inner wall of the metal tube body is provided with the wear-resistant lining, the outer wall of the metal tube body is provided with the outer coating, the wear-resistant lining is sequentially provided with a diamond carbon layer, a tungsten carbide layer and a nickel-based alloy layer from inside to outside, the nickel-based alloy layer is sprayed and covered on the inner wall of the metal tube body, the inner wall of the nickel-based alloy layer is cladded with the tungsten carbide layer, and the inner wall of the tungsten carbide layer is magnetron sputtered with the diamond carbon layer, the outer coating is made of vulcanized rubber material, the outer coating is fixed on the outer wall of the metal tube body, and the adjacent assembly ends of the Bundy tube body are fixedly connected through the supporting piece. The inner wall of the metal tube body of the Bundy tube body is provided with the wear-resistant lining, the hardness and wear resistance of the Bundy tube body are improved, and the overall service life of the Bundy tube body is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of Bondi tubes, and in particular to a composite layer wear-resistant Bondi tube. Background Technology

[0002] Bondi tubing is a specific type of metal hose, typically made of stainless steel or other corrosion-resistant materials. It offers good flexibility and strength and is widely used in automotive fuel systems, industrial fluid transport, and building water supply and drainage systems.

[0003] The existing announcement number is CN221171128U, entitled "A Bondi Tube with High Structural Strength," which includes a tube body and a connecting tube. The tube body includes a first pipe, a second pipe, and a third pipe. The first pipe is fitted onto the second pipe, forming a reinforcing layer between the first and second pipes. The second pipe is fitted onto the third pipe, forming a buffer layer between the second and third pipes. The reinforcing layer has a reinforcing structure, and the buffer layer has a thermally conductive cushioning pad. The tube body is fixedly connected to the connecting shell. A fixing ring with external threads is provided on the tube body and is threaded to the first threaded pipe. The first threaded pipe is fixedly connected to the connecting tube. A second threaded pipe is provided on the connecting tube and is threaded to the connecting shell. A sealing sleeve is installed inside the connecting tube. The first threaded pipe and the sealing sleeve are provided inside the connecting tube, so that when the Bondi tube is connected to the connecting tube, it can clamp and seal the tube body, increasing stability and sealing performance.

[0004] Regarding the aforementioned technologies, the inventors discovered that the Bondi tubes are typically made of a single layer of metal material. Although they possess a certain strength and corrosion resistance, the Bondi tubes lack a wear-resistant structure. When conveying fluids containing particles, prolonged fluid scouring causes damage to the inner wall of the Bondi tube. Consequently, under high-wear conditions, the Bondi tube is prone to performance degradation due to surface wear, and may even experience leakage, thus affecting its service life. Utility Model Content

[0005] To overcome the problem that existing Bondi tubes lack a wear-resistant structure, causing damage to the inner wall of the Bondi tube under prolonged fluid scouring when conveying fluids containing particles, leading to performance degradation and even leakage under high-wear conditions, thus affecting the service life of the Bondi tube, this application provides a composite layer wear-resistant Bondi tube.

[0006] The composite layer wear-resistant Bondi tube provided in this application adopts the following technical solution:

[0007] A composite layer wear-resistant Bondi tube includes a Bondi tube body and a support. The Bondi tube body consists of a metal tube, a wear-resistant inner liner, and an outer cladding. The wear-resistant inner liner is provided on the inner wall of the metal tube, and the outer cladding is provided on the outer wall of the metal tube. The wear-resistant inner liner is provided with a diamond-carbon layer, a tungsten carbide layer, and a nickel-based alloy layer from the inside to the outside. The nickel-based alloy layer is sprayed and covers the inner wall of the metal tube, and the inner wall of the nickel-based alloy layer is fused with a tungsten carbide layer. The inner wall of the tungsten carbide layer is magnetron sputtered with a diamond-carbon layer. The outer cladding is made of vulcanized rubber and is fixed to the outer wall of the metal tube. Adjacent assembly ends of the Bondi tube body are connected and fixed by the support.

[0008] By adopting the above technical solution, in order to increase the wear resistance of the Bondi tube body during use, a wear-resistant liner is provided on the inner wall of the metal tube body. The nickel-based alloy layer is covered on the inner wall of the metal tube body by plasma spraying of nickel-based alloy solution, which enhances the bonding force between the wear-resistant liner and the inner wall of the metal tube body. At the same time, the nickel-based alloy increases the corrosion resistance of the inner wall of the metal tube body of the Bondi tube body. Furthermore, a tungsten carbide layer is laser-clad on the inner wall of the nickel-based alloy layer. The extremely high hardness and wear resistance of the tungsten carbide layer increases the hardness and wear resistance of the metal tube body. Meanwhile, the diamond carbon layer is applied by magnetron sputtering. The extremely high hardness and wear resistance of the diamond carbon layer further increases the hardness and wear resistance of the metal tube body. Thus, the wear-resistant liner on the inner wall of the metal tube body of the Bondi tube body increases the hardness and wear resistance of the Bondi tube body during use, and extends the overall service life of the Bondi tube body.

[0009] Optionally, a spiral annular groove is formed laterally on the inner wall of the diamond carbon layer.

[0010] By adopting the above technical solution, a spiral annular groove is opened on the inner wall of the diamond carbon layer. When guiding the fluid, the spiral guiding groove is pressed on the inner side of the pipe wall, which reduces the turbulent vibration energy of the fluid and improves the stability of the Bondi tube body in guiding the fluid.

[0011] Optionally, one end of the Bondi tube body is integrally formed and connected to an assembly screw cylinder, and a pressure ring is fixed to the outer end of the assembly screw cylinder.

[0012] By adopting the above technical solution, the assembly screw cylinder connected to the end of the Bondi tube body facilitates the later assembly of the Bondi tube body together, and the setting of the pressure ring is used as an auxiliary support to ensure the firmness of the connection of the Bondi tube body end.

[0013] Optionally, the other end of the Bondi tube body is integrally formed and connected to an assembly screw tube, and a pressure ring is fixed to the outer end of the assembly screw tube.

[0014] By adopting the above technical solution, the assembly screw tubes connected to the ends of the Bondi tube body facilitate the later assembly of the Bondi tube body together. The setting of the pressure ring is used as an auxiliary support to ensure the firmness of the docking of the Bondi tube body ends. When the Bondi tube body is connected and assembled, the assembly screw tubes at adjacent ends are threaded with assembly screws, and the connection assembly of the Bondi tube body is pre-installed.

[0015] Optionally, the support includes a lower support groove ring and an upper support groove ring, which are symmetrically engaged with the upper and lower sides of the pressure ring at adjacent ends of the Bondi tube body.

[0016] By adopting the above technical solution, the lower and upper support groove rings of the support member are snapped into the pressure ring at the end of the Bondi tube body, and the connection stability of the Bondi tube body end is achieved by the mating of the lower and upper support groove rings.

[0017] Optionally, mounting studs are vertically fixed on both sides of the opening of the lower support groove ring, and perforated plates are vertically fixed on both sides of the opening of the upper support groove ring. The mounting studs on the lower support groove ring pass through the perforated plates of the upper support groove ring, and assembly nuts are threaded onto the mounting studs.

[0018] By adopting the above technical solution, the mounting studs on the lower and upper support groove rings penetrate the hole plate of the upper support groove ring, and the mounting studs are assembled by the assembly nut thread, which ensures the stability of the mating installation of the lower and upper support groove rings.

[0019] Optionally, a sliding frame is vertically fixed on the outer wall of the upper support ring, and a lifting frame is vertically slidably assembled on the sliding frame. A fixing stud is vertically fixed on the top surface of the lifting frame, and the fixing stud is used to fix the lifting frame.

[0020] By adopting the above technical solution, the fixing studs on the top surface of the lifting frame are used in conjunction with the mounting holes to assemble nuts for fixing the lifting frame. After installation, vibration causes the lifting frame to slide vertically within the sliding frame.

[0021] Optionally, a damping rod is vertically fixed to the upper inner side of the slide frame, and the bottom end of the damping rod is fixed to the bottom surface of the lifting frame. A spring is vertically sleeved on the outside of the damping rod, and the two ends of the spring are respectively fixed to the upper inner side of the slide frame and the bottom surface of the lifting frame.

[0022] By adopting the above technical solution, the lifting frame slides vertically in the sliding frame, compressing the damping rod to extend and the spring to absorb vibration. The spring deformation potential energy is offset by the damping force of the damping rod, ensuring the stability of the support component in supporting the Bondi tube body.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] To enhance the wear resistance of the Bondi tube during use, a wear-resistant liner is installed on the inner wall of the metal tube. A nickel-based alloy layer is applied to the inner wall of the metal tube using plasma spraying of a nickel-based alloy solution, strengthening the bond between the wear-resistant liner and the inner wall of the metal tube. The nickel-based alloy also increases the corrosion resistance of the inner wall of the metal tube. Furthermore, a tungsten carbide layer is laser-clad onto the inner wall of the nickel-based alloy layer. The extremely high hardness and wear resistance of the tungsten carbide layer further enhance the hardness and wear resistance of the metal tube. Simultaneously, a diamond-carbon layer is applied using magnetron sputtering, leveraging the extremely high hardness and wear resistance of the diamond-carbon layer to further increase the hardness and wear resistance of the metal tube. Therefore, the wear-resistant liner on the inner wall of the Bondi tube increases the overall hardness and wear resistance of the tube, extending its service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state;

[0027] Figure 3 This is a schematic diagram of the structure of the support member in the exploded state according to an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the Bundy tube body in an exploded state according to an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the wear-resistant liner in the disassembled state according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Bundy tube body; 11. Assembly screw barrel; 12. Assembly screw tube; 13. Pressure ring; 2. Support component; 21. Lower support groove ring; 22. Upper support groove ring; 23. Mounting stud; 24. Assembly nut; 25. Slide frame; 26. Damping rod; 27. Spring; 28. Lifting frame; 29. ​​Fixing stud; 3. Metal tube body; 4. Wear-resistant inner liner; 41. Diamond carbide layer; 411. Spiral ring groove; 42. Tungsten carbide layer; 43. Nickel-based alloy layer; 5. Outer coating. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a composite-layer wear-resistant Bondi tube. (See also...) Figure 1 , Figure 2 , Figure 3 and Figure 4A composite layer wear-resistant Bondi tube includes a Bondi tube body 1 and a support member 2. The Bondi tube body 1 consists of a metal tube body 3, a wear-resistant inner liner 4, and an outer covering layer 5. The wear-resistant inner liner 4 is provided on the inner wall of the metal tube body 3, and the outer covering layer 5 is provided on the outer wall of the metal tube body 3. The wear-resistant inner liner 4 is provided with a diamond-carbon layer 41, a tungsten carbide layer 42, and a nickel-based alloy layer 43 from the inside to the outside. The nickel-based alloy layer 43 is sprayed and covered on the inner wall of the metal tube body 3, and the tungsten carbide layer 42 is fused onto the inner wall of the nickel-based alloy layer 43. The diamond-carbon layer 41 is magnetron sputtered onto the inner wall of the tungsten carbide layer 42. The outer covering layer 5 is made of vulcanized rubber and is fixed to the outer wall of the metal tube body 3. Adjacent assembly ends of the Bondi tube body 1 are connected and fixed through the support member 2.

[0033] By adopting the above technical solution, in order to increase the wear resistance of the Bondi tube body 1 during use, a wear-resistant liner 4 is provided on the inner wall of the metal tube body 3 of the Bondi tube body 1. The nickel-based alloy layer 43 is covered on the inner wall of the metal tube body 3 by plasma spraying of nickel-based alloy solution, which enhances the bonding force between the wear-resistant liner 4 and the inner wall of the metal tube body 3. At the same time, the nickel-based alloy increases the corrosion resistance of the inner wall of the metal tube body 3 of the Bondi tube body 1. Furthermore, a tungsten carbide layer 42 is laser-clad on the inner wall of the nickel-based alloy layer 43. The extremely high hardness and wear resistance of the tungsten carbide layer 42 increase the hardness and wear resistance of the metal tube body 3. Meanwhile, the diamond carbon layer 41 is applied by magnetron sputtering. The extremely high hardness and wear resistance of the diamond carbon layer 41 increase the hardness and wear resistance of the metal tube body 3. Thus, the wear-resistant liner 4 on the inner wall of the metal tube body 3 of the Bondi tube body 1 increases the hardness and wear resistance of the Bondi tube body 1 and extends the overall service life of the Bondi tube body 1.

[0034] Reference Figure 5 A spiral annular groove 411 is transversely formed on the inner wall of the diamond carbon layer 41. The spiral annular groove 411 formed on the inner wall of the diamond carbon layer 41, when guiding the fluid, presses the spiral guiding groove on the inner side of the pipe wall, reduces the turbulent vibration energy of the fluid, and improves the stability of the Bondi tube body 1 in guiding the fluid.

[0035] Reference Figure 1 and Figure 2One end of the Bondi tube body 1 is integrally formed and connected to an assembly screw cylinder 11, with a pressure ring 13 fixed to the outer end of the assembly screw cylinder 11. The assembly screw cylinder 11 connected to the end of the Bondi tube body 1 facilitates the later assembly of the Bondi tube body 1 together. The pressure ring 13 is provided to ensure the firmness of the connection between the ends of the Bondi tube body 1 by the auxiliary support 2. The other end of the Bondi tube body 1 is integrally formed and connected to an assembly screw tube 12, with a pressure ring 13 fixed to the outer end of the assembly screw tube 12. The assembly screw tube 12 connected to the end of the Bondi tube body 1 facilitates the later assembly of the Bondi tube body 1 together. The pressure ring 13 is provided to ensure the firmness of the connection between the ends of the Bondi tube body 1 by the auxiliary support 2. During the assembly of the Bondi tube body 1, the assembly screw cylinder 11 is threaded into the assembly screw tube 12 at the adjacent ends, and the connection assembly of the Bondi tube body 1 is pre-installed.

[0036] Reference Figure 2 and Figure 3 The support member 2 includes a lower support ring 21 and an upper support ring 22, which are symmetrically engaged with the upper and lower sides of the pressure ring 13 at adjacent ends of the Bondi tube body 1. The lower support ring 21 and upper support ring 22 of the support member 2 are engaged with the pressure ring 13 at the ends of the Bondi tube body 1, and the engagement of the lower support ring 21 and upper support ring 22 compresses the ends of the Bondi tube body 1 to ensure the stability of the connection. Mounting studs 23 are vertically fixed on both sides of the opening of the lower support ring 21, and perforated plates are vertically fixed on both sides of the opening of the upper support ring 22. The mounting studs 23 on the lower support ring 21 pass through the perforated plates of the upper support ring 22, and assembly nuts 24 are threaded onto the mounting studs 23. Mounting studs 23 on the lower support ring 21 and the upper support ring 22 penetrate the hole plate of the upper support ring 22. The mounting studs 23 are assembled using assembly nuts 24, ensuring the stability of the mating installation of the lower support ring 21 and the upper support ring 22. A sliding frame 25 is vertically fixed to the outer wall of the upper support ring 22, and a lifting frame 28 is vertically slidably assembled on the sliding frame 25. A fixing stud 29 is vertically fixed to the top surface of the lifting frame 28, and the fixing stud 29 is used to fix the lifting frame 28. The fixing stud 29 on the top surface of the lifting frame 28, together with the mounting hole assembly nut, is used to fix the lifting frame 28. After installation, vibration causes the lifting frame 28 to slide vertically within the sliding frame 25. A damping rod 26 is vertically fixed to the upper inner side of the sliding frame 25, and the bottom end of the damping rod 26 is fixed to the bottom surface of the lifting frame 28. A spring 27 is vertically sleeved on the outside of the damping rod 26, and the two ends of the spring 27 are respectively fixed to the upper inner side of the sliding frame 25 and the bottom surface of the lifting frame 28. The lifting frame 28 slides vertically in the sliding frame 25, compressing the extension of the damping rod 26 and the deformation of the spring 27 to absorb vibration. The deformation potential energy of the spring 27 is offset by the restoring damping force of the damping rod 26, ensuring the stability of the support member 2 in supporting the Bondi tube body 1.

[0037] The implementation principle of a composite layer wear-resistant Bondi tube according to this application embodiment is as follows: During use, the assembly screw tube 12 connects to the end of the Bondi tube body 1, facilitating later assembly of the Bondi tube body 1 together. The pressure ring 13 is provided for later auxiliary support 2 to ensure the firmness of the connection at the end of the Bondi tube body 1. During the assembly of the Bondi tube body 1, the assembly screw tubes 12 at adjacent ends are threaded with assembly screw cylinders 11, pre-installing the connection assembly of the Bondi tube body 1. To increase the wear resistance of the Bondi tube body 1 during use, the mounting studs 23 on the lower support groove ring 21 and the upper support groove ring 22 penetrate the hole plate of the upper support groove ring 22. The mounting studs 23 are threadedly assembled by the assembly nut 24, ensuring the stability of the mating installation of the lower support groove ring 21 and the upper support groove ring 22. The lifting frame 28 slides vertically in the sliding frame 25, compressing the extension of the damping rod 26 and the deformation of the spring 27 to absorb vibration. The deformation potential energy of the spring 27 is damped. The damping force of rod 26 is offset, ensuring the stability of the connection between the support member 2 and the Bondi tube body 1. By setting a wear-resistant liner 4 on the inner wall of the metal tube 3 of the Bondi tube body 1, and using plasma spraying of nickel-based alloy solution to cover the inner wall of the metal tube 3, the bonding force between the wear-resistant liner 4 and the inner wall of the metal tube 3 is enhanced. At the same time, the nickel-based alloy increases the corrosion resistance of the inner wall of the metal tube 3 of the Bondi tube body 1. Furthermore, a tungsten carbide layer 42 is laser-clad on the inner wall of the nickel-based alloy layer 43. The extremely high hardness and wear resistance of the tungsten carbide layer 42 increase the hardness and wear resistance of the metal tube 3. Meanwhile, the diamond carbon layer 41 is applied by magnetron sputtering. The extremely high hardness and wear resistance of the diamond carbon layer 41 further increases the hardness and wear resistance of the metal tube 3. Thus, the wear-resistant liner 4 on the inner wall of the metal tube 3 of the Bondi tube body 1 increases the service hardness and wear resistance of the Bondi tube body 1.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A composite layer wear-resistant Bondi tube, characterized in that, The device includes a Bundy tube body (1) and a support member (2). The Bundy tube body (1) is composed of a metal tube body (3), a wear-resistant inner liner (4), and an outer covering layer (5). The wear-resistant inner liner (4) is disposed on the inner wall of the metal tube body (3), and the outer covering layer (5) is disposed on the outer wall of the metal tube body (3). The wear-resistant inner liner (4) is provided with a diamond carbide layer (41), a tungsten carbide layer (42), and a nickel-based alloy layer (43) from the inside to the outside. A nickel-based alloy layer (43) is sprayed and covered on the inner wall of the metal tube (3), and the tungsten carbide layer (42) is fused onto the inner wall of the nickel-based alloy layer (43), and the diamond carbon layer (41) is magnetron sputtered onto the inner wall of the tungsten carbide layer (42). The outer cover (5) is made of vulcanized rubber and is fixed to the outer wall of the metal tube (3). The adjacent assembly ends of the Bondi tube body (1) are connected and fixed by a support member (2).

2. The composite layer wear-resistant Bondi tube according to claim 1, characterized in that: The inner wall of the diamond carbon layer (41) is provided with a spiral annular groove (411) in the transverse direction.

3. The composite layer wear-resistant Bondi tube according to claim 1, characterized in that: One end of the Bondi tube body (1) is integrally formed and connected to an assembly screw cylinder (11), and a pressure ring (13) is fixed to the outer wall end of the assembly screw cylinder (11).

4. The composite layer wear-resistant Bondi tube according to claim 3, characterized in that: The other end of the Bondi tube body (1) is integrally formed and connected to the assembly screw tube (12), and the outer wall end of the assembly screw tube (12) is fixed with a pressure ring (13).

5. The composite layer wear-resistant Bondi tube according to claim 4, characterized in that: The support member (2) includes a lower support groove ring (21) and an upper support groove ring (22), which are symmetrically engaged on the upper and lower sides of the pressure ring (13) at adjacent ends of the Bondi tube body (1).

6. The composite layer wear-resistant Bondi tube according to claim 5, characterized in that: The lower support groove ring (21) has vertically fixed mounting studs (23) on both sides of the opening, and the upper support groove ring (22) has vertically fixed perforated plates on both sides of the opening. The mounting studs (23) on the lower support groove ring (21) are set through the perforated plates of the upper support groove ring (22), and the mounting studs (23) are threaded with assembly nuts (24).

7. The composite layer wear-resistant Bondi tube according to claim 6, characterized in that: A sliding frame (25) is vertically fixed on the outer wall of the upper support groove ring (22), and a lifting frame (28) is vertically slidably assembled on the sliding frame (25). A fixing stud (29) is vertically fixed on the top surface of the lifting frame (28), and the fixing stud (29) is used to fix the lifting frame (28).

8. The composite layer wear-resistant Bondi tube according to claim 7, characterized in that: A damping rod (26) is vertically fixed on the upper inner side of the sliding frame (25), and the bottom end of the damping rod (26) is fixed on the bottom surface of the lifting frame (28). A spring (27) is vertically sleeved on the outside of the damping rod (26), and the two ends of the spring (27) are respectively fixed on the upper inner side of the sliding frame (25) and the bottom surface of the lifting frame (28).

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