Abrasion-resistant rubber hose

Abstract

This utility model discloses a wear-resistant rubber hose, belonging to the technical field of rubber hoses. The wear-resistant rubber hose includes two metal supports and a rubber hose body installed within the metal supports. One end of a semicircular ring is rotatably connected to a second semicircular ring. A rotating mechanism connects the first and second semicircular rings, and the rotating mechanism is located within a groove. Spiral-shaped raised ribs are fixedly connected to the inner wall of the hose body. This utility model achieves rolling friction compensation through the cooperation of the first and second semicircular rings and the rotating mechanism, converting sliding friction into rolling friction to disperse contact stress and reduce energy loss. A three-dimensional support frame is formed by mutually perpendicular L-shaped metal supports, converting the axial load borne by the hose body into multi-directional stress distribution to avoid local stress concentration. A threaded connection structure consisting of bolts and nuts enables rapid opening and closing of the semicircular ring assembly, utilizing the self-locking characteristic of the threads to prevent loosening and facilitate on-site maintenance.

Description

Technical Field

[0001] This utility model relates to the field of rubber hose technology, and in particular to wear-resistant rubber hoses. Background Technology

[0002] Wear-resistant rubber hoses are rubber pipes with embedded steel wire or fiber reinforcement layers and inner and outer rubber layers that have high wear resistance. They can resist the friction and impact of particulate media and are widely used for material transportation in mining, metallurgy and other industries.

[0003] In vibration-prone scenarios such as hydraulic systems of engineering machinery, the traditional rubber hose and metal support structure has certain technical defects. Because the outer wall of the rubber hose is in direct contact with the rigid metal support, under the continuous vibration generated by the equipment operation, the rubber material and the edge of the metal support will have high-frequency friction contact, especially the sharp parts of the support mounting hole edges, which will form stress concentration points. This dynamic friction process causes the outer wall of the rubber hose to gradually undergo wear deformation, the local temperature rise accelerates the aging of the rubber, and eventually causes the pipe wall to crack or crack propagate. Especially under the high-pressure conditions of the hydraulic system, the pipe body damage will directly lead to the leakage of the medium, which not only causes the system pressure to drop and the environment to pollute, but also causes secondary failures due to rubber debris mixed into the hydraulic oil circuit, resulting in shortened equipment maintenance cycle and safety hazards.

[0004] Therefore, there is an urgent need to provide wear-resistant rubber hoses to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a wear-resistant rubber tube.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a wear-resistant rubber tube, including two metal supports and a rubber tube body installed in the metal supports, a semi-circular ring 1 fixedly connected in the two metal supports, a semi-circular ring 2 rotatably connected to one end of the semi-circular ring 1, a rotating mechanism connected between the semi-circular ring 1 and the semi-circular ring 2, a collar rotatably connected to the outside of the tube body, an annular groove 2 opened on the outside of the collar, and the rotating mechanism located in the groove 2;

[0007] The inner wall of the tube is fixedly connected with spiral-shaped raised ribs.

[0008] The present invention is further configured such that: the rotating mechanism includes two grooves three respectively opened on the inner wall of the first semicircular ring and the second semicircular ring, and a circular limiting block is placed in the two grooves three. The circular ring three is fixedly connected in the limiting block and is located in the groove two.

[0009] Through the above technical solution, during the implementation of the rotating mechanism, the annular groove 3 opened on the inner wall of the semicircular ring 1 and the semicircular ring 2 forms a limiting track. The built-in circular limiting block rotates along the track on a fixed axis. The circular ring 3 embedded in the limiting block and the annular groove 2 on the outer wall of the collar form a rolling friction pair. When the external load causes the metal support or tube to shift, the rolling friction pair converts the sliding friction into rolling friction, so that the semicircular ring assembly and the tube form a low-resistance relative motion, effectively dispersing the contact stress and reducing the loss of frictional energy.

[0010] The present invention is further configured such that a flange is installed at one end of the pipe body.

[0011] With the above technical solution, the flange is connected to external equipment through a standard flange interface. Its annular sealing surface and the matching flange form an axial compression sealing structure. At the same time, the sealing groove set on the flange end face can install elastic sealing elements. The bolt preload achieves dual protection of end face sealing and radial sealing of the pipe body, ensuring that the connection part maintains sealing reliability under vibration conditions.

[0012] The present invention is further configured such that: both of the metal supports are L-shaped and perpendicular to each other, the two metal supports are rigidly connected by welding, and the rubber tube is embedded with steel wire.

[0013] Through the above technical solution, mutually perpendicular L-shaped metal supports form a three-dimensional support frame through rigid connection. When the pipe body is subjected to axial tensile and compressive loads, the vertically intersecting support structure transforms the uniaxial force into multi-directional stress distribution, avoiding local stress concentration. When the pipe body undergoes radial swaying under vibration conditions, the rigid supports maintain a fixed spacing, and the displacement compensation function of the rotating mechanism maintains the freedom of movement of the pipe body. At the same time, the embedded steel wire skeleton provides elastic recovery force when the pipe body deforms, suppressing fatigue damage caused by excessive deformation.

[0014] The present invention is further configured such that: one end of each of the semicircular ring one and the semicircular ring two is fixedly connected to two connecting blocks, each of the multiple connecting blocks is provided with a through hole, and the multiple connecting blocks are paired to form two through holes, and bolts are rotatably connected to the two through holes by threads, wherein the bottom of each of the two connecting blocks is fixedly connected to a nut corresponding to the two bolts respectively.

[0015] Through the above technical solution, the semi-circular ring assembly realizes the opening and closing operation through the bolt and nut connection structure. When it is necessary to install or disassemble the pipe body, loosen the bolt to release the clamping state of the connecting block, and the semi-circular ring can be rotated around the hinge end to open. During normal operation, the bolt preload is transmitted to the semi-circular ring assembly through the connecting block to form a closed ring constraint. This structure ensures the connection strength while preventing the bolt from loosening through the self-locking characteristics of the threaded pair. Moreover, the threaded connection method facilitates on-site maintenance operations using standard tools.

[0016] The present invention is further configured such that: a reinforcing layer is fixedly connected inside the tube body, and wear-resistant layers are provided on both the inner wall and the outer side of the tube body, and an external coating is provided on the surface of both wear-resistant layers.

[0017] Through the above technical solution, the reinforcing layer acts as a reinforcing skeleton for the pipe body substrate. The woven structure withstands the circumferential stress generated by the internal fluid pressure. When the pipe body expands under pressure, the fiber orientation of the reinforcing layer limits the radial deformation. The inner wall wear-resistant layer forms a micro-protrusion structure through surface roughness control technology, forming a lubricating oil film when the fluid is flushed. At the same time, spiral protrusions are set axially on the inner wall of the pipe body to make the fluid flow in a spiral shape, disperse the impact force of particles, and prevent particles from impacting the same area of ​​the pipe wall due to inertia, thus accelerating local wear. The outer wall wear-resistant layer increases the contact area with the support through texture design, and together with the external coating, forms a wear-resistant protection system. The synergistic effect of each layer enables the pipe body to have comprehensive performance in terms of resistance to internal pressure bursting, wear and corrosion resistance, and environmental aging resistance.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model achieves rolling friction compensation through a rotating mechanism consisting of two semicircular rings, one and two, converting sliding friction into rolling friction to disperse contact stress and reduce energy loss; a three-dimensional support frame is formed by mutually perpendicular L-shaped metal supports, converting the axial load borne by the pipe body into multi-directional stress distribution to avoid local stress concentration; the threaded connection structure consisting of bolts and nuts enables the rapid opening and closing of the semicircular ring assembly, utilizing the self-locking characteristic of the threads to prevent loosening and facilitate on-site maintenance; the spiral protruding ribs on the inner wall of the pipe guide the fluid to form a spiral flow, effectively reducing the direct wear of the pipe wall by fluid scouring;

[0020] 2. This utility model increases the contact area with the support by designing the wear-resistant layer texture on the outer wall, and forms a wear-resistant protection system in conjunction with the external coating; finally, through the synergistic effect of the rolling friction compensation mechanism, the double sealing mechanism, the three-dimensional support mechanism, the threaded connection mechanism, the fluid guiding mechanism and the multi-layer protection mechanism, the rubber hose has comprehensive performance of resisting internal pressure bursting, resisting wear and corrosion, resisting environmental aging and being reusable, which significantly improves the service life and operational reliability under vibration conditions. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the present invention;

[0022] Figure 2 This is a second-view sectional view of the present invention;

[0023] Figure 3 This is a third-view sectional view of the present invention;

[0024] Figure 4 This is a sectional view of the rotating mechanism.

[0025] Figure 5 This is a fourth-angle sectional view of the present invention;

[0026] Figure 6 This is a fifth-angle sectional view of the present invention.

[0027] In the diagram: 1. Support; 2. Pipe body; 3. Semicircular ring one; 4. Semicircular ring two; 5. Rotating mechanism; 501. Groove three; 502. Limiting block; 503. Circular ring three; 6. Collar; 7. Groove two; 8. Rib; 9. Flange; 10. Connecting block; 11. Through hole; 12. Bolt; 13. Nut; 14. Reinforcing layer; 15. Wear-resistant layer. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0029] Please see Figures 1-6 The wear-resistant rubber tube of this embodiment includes two metal brackets 1 and a rubber tube body 2 installed in the metal brackets 1. A semi-circular ring 3 is fixedly connected in the two metal brackets 1. A semi-circular ring 4 is rotatably connected to one end of the semi-circular ring 3. A rotating mechanism 5 is connected between the semi-circular ring 3 and the semi-circular ring 4. A collar 6 is rotatably connected to the outside of the tube body 2. An annular groove 7 is opened on the outside of the collar 6. The rotating mechanism 5 is located in the groove 7.

[0030] The inner wall of the tube 2 is fixedly connected with a spiral protruding rib 8. The rotating mechanism 5 includes two grooves 501 respectively opened on the inner walls of the first semicircular ring 3 and the second semicircular ring 4. A circular limiting block 502 is placed in the two grooves 501. A circular ring 503 is fixedly connected in the limiting block 502. The circular ring 503 is located in the groove 7. During the operation of the rotating mechanism 5, the annular grooves 501 opened on the inner walls of the first semicircular ring 3 and the second semicircular ring 4 form a limiting track. The built-in circular limiting block 502 rotates along the track. The circular ring 503 embedded in the limiting block 502 and the annular groove 7 on the outer wall of the collar 6 form a rolling friction pair. When the external load causes the metal support 1 or the tube 2 to shift, the rolling friction pair converts the sliding friction into rolling friction, so that the semicircular ring assembly and the tube 2 form a low-resistance relative motion, effectively dispersing the contact stress and reducing the loss of frictional energy.

[0031] like Figure 4As shown, a flange 9 is installed at one end of the pipe body 2. When the flange 9 is implemented, it is connected to the external equipment through a standard flange interface. Its annular sealing surface and the matching flange form an axial compression sealing structure. At the same time, the sealing groove set on the end face of the flange 9 can install an elastic sealing element. The bolt pre-tightening force achieves dual protection of end face sealing and radial sealing of the pipe body 2, ensuring that the connection part still maintains sealing reliability under vibration conditions.

[0032] like Figures 1-2 As shown, both metal supports 1 are L-shaped and perpendicular to each other. The two metal supports 1 are rigidly connected by welding. The rubber tube 2 is embedded with steel wire. The perpendicular L-shaped metal supports 1 form a three-dimensional support frame through rigid connection. When the tube 2 is subjected to axial tensile and compressive loads, the perpendicularly intersecting support structure transforms the uniaxial force into multi-directional stress distribution, avoiding local stress concentration. When the tube 2 oscillates radially under vibration conditions, the rigid supports 1 maintain a fixed distance. The displacement compensation function of the rotating mechanism 5 maintains the degree of freedom of movement of the tube 2. At the same time, the embedded steel wire skeleton provides elastic recovery force when the tube 2 deforms, suppressing fatigue damage caused by excessive deformation.

[0033] like Figure 6 As shown, two connecting blocks 10 are fixedly connected to one end of both semicircular ring 11 and semicircular ring 2. Each connecting block 10 has a through hole 11, and the connecting blocks 10 form two through holes 11 in pairs. Bolts 12 are rotatably connected to the two through holes 11 by threads. Nuts 13 corresponding to the two bolts 12 are fixedly connected to the bottom of each connecting block 10. The semicircular ring assembly realizes the opening and closing operation through the connection structure of bolts 12 and nuts 13. When it is necessary to install or remove the pipe body 2, the bolts 12 are loosened to release the clamping state of the connecting blocks 10, and semicircular ring 2 can be rotated around the hinge end to open. Then the limiting block 502 can be removed from the slot 3 501. During normal operation, the preload of bolts 12 is transmitted to the semicircular ring assembly through connecting blocks 10 to form a closed ring constraint. This structure ensures the connection strength while preventing bolts 12 from loosening through the self-locking characteristics of the threaded pair. The threaded connection method facilitates on-site maintenance operations using standard tools.

[0034] like Figures 1-6As shown, a reinforcing layer 14 is fixedly connected inside the pipe body 2. Both the inner wall and the outer wall of the pipe body 2 are provided with wear-resistant layers 15. The surfaces of both wear-resistant layers 15 are provided with an external coating. When implemented, the reinforcing layer 14 serves as a reinforcing skeleton for the base material of the pipe body 2. It withstands the circumferential stress generated by the internal fluid pressure through a braided structure. When the pipe body 2 expands under pressure, the fiber orientation of the reinforcing layer 14 limits the radial deformation. The inner wall wear-resistant layer 15 forms a micro-protrusion structure through surface roughness control technology, forming a lubricating oil film when the fluid is flushed. At the same time, spiral protruding ribs 8 are axially arranged on the inner wall of the pipe body 2 to make the fluid form a spiral flow, disperse the impact force of particles, and prevent particles from impacting the same area of ​​the pipe wall due to inertia, thus accelerating local wear. The outer wall wear-resistant layer 15 increases the contact area with the support 1 through texture design. Together with the external coating, it forms a wear-resistant protection system. The synergistic effect of each layer enables the pipe body 2 to have comprehensive performance in terms of resistance to internal pressure bursting, wear corrosion resistance, and environmental aging resistance.

[0035] In use, this utility model utilizes an openable annular structure formed by semicircular ring 3 and semicircular ring 4 to enclose the pipe body 2. Low-resistance relative motion is achieved through a rolling friction pair formed by the ring 3 503 (built into groove 3 501) and the annular groove 7 on the outer wall of the collar 6. When the external metal support 1 or the pipe body 2 is under load and undergoes displacement, this rolling friction structure converts sliding friction into rolling friction to disperse contact stress. Simultaneously, the spiral-shaped raised ribs 8 on the inner wall of the pipe body 2 guide sand and gravel to form a spiral flow. Combined with the lubricating oil film generated by the micro-protrusion structure on the surface of the wear-resistant layer 15 on the inner wall, this effectively reduces the direct wear of the pipe wall by fluid scouring. The end of the pipe body 2 is connected to the equipment via a standard interface of flange 9. A double sealing guarantee is achieved using an axial compression sealing structure and elastic sealing elements to ensure sealing reliability under vibration conditions. The mutually perpendicular L-shaped metal supports 1 form a three-dimensional support frame through rigid connection, converting the axial load borne by the pipe body 2 into a multi-directional stress distribution, avoiding local stress concentration, and through… Metal bracket 1 maintains the freedom of movement of tube body 2 at fixed intervals, and the elastic restoring force provided by the embedded steel wire skeleton suppresses excessive deformation; semi-circular ring 1 3 and semi-circular ring 2 4 are connected by the threaded pair of bolt 12 and nut 13 to form a closed constraint, and the self-locking characteristic of the thread prevents loosening. When maintenance is required, the semi-circular ring 2 4 can be opened by loosening bolt 12 to install and remove tube body 2; the reinforcing layer 14 of tube body 2 bears circumferential stress and restricts radial expansion through the fiber braided structure, and the wear-resistant layer 15 of the outer wall, together with the external coating, forms a wear-resistant protection system. The synergistic effect of each functional layer gives tube body 2 comprehensive performance of resistance to internal pressure burst, wear and corrosion resistance and environmental aging resistance. Finally, through the combined action mechanism of rolling friction compensation, fluid guidance, stress dispersion and multi-layer protection, the service life and operational reliability of rubber hose under vibration conditions are significantly improved. All components are tightly connected, ensuring tight material conveying. Tube body 2 is flexible, easy to install, saves time and effort in installation, is durable and long-lasting, reusable, and reduces production costs.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wear-resistant rubber tube, comprising two metal supports (1) and a rubber tube body (2) installed within the metal supports (1), characterized in that: Two metal brackets (1) are fixedly connected with a semi-circular ring one (3), one end of the semi-circular ring one (3) is rotatably connected with a semi-circular ring two (4), a rotating mechanism (5) is connected between the semi-circular ring one (3) and the semi-circular ring two (4), a collar (6) is rotatably connected to the outside of the tube body (2), and an annular groove two (7) is opened on the outside of the collar (6), and the rotating mechanism (5) is located in the groove two (7); The inner wall of the tube (2) is fixedly connected with spiral protruding ribs (8).

2. The wear-resistant rubber hose according to claim 1, characterized in that: The rotating mechanism (5) includes two grooves (501) respectively opened on the inner walls of the first semicircular ring (3) and the second semicircular ring (4). A circular limiting block (502) is placed in the two grooves (501). A circular ring (503) is fixedly connected in the limiting block (502). The circular ring (503) is located in the second groove (7).

3. The wear-resistant rubber hose according to claim 1, characterized in that: A flange (9) is installed at one end of the pipe body (2).

4. The wear-resistant rubber hose according to claim 1, characterized in that: Both metal supports (1) are L-shaped and perpendicular to each other. The two metal supports (1) are rigidly connected by welding. The rubber tube (2) is embedded with steel wire.

5. The wear-resistant rubber hose according to claim 1, characterized in that: Two connecting blocks (10) are fixedly connected to one end of each of the semicircular ring one (3) and the semicircular ring two (4). Each of the connecting blocks (10) has a through hole (11). The connecting blocks (10) form two through holes (11) in pairs. Bolts (12) are connected to the two through holes (11) by thread rotation. Nuts (13) corresponding to the two bolts (12) are fixedly connected to the bottom of each of the two connecting blocks (10).

6. The wear-resistant rubber hose according to claim 1, characterized in that: The tube body (2) is fixedly connected to a reinforcing layer (14), and the inner wall and outer wall of the tube body (2) are provided with wear-resistant layers (15). The surfaces of the two wear-resistant layers (15) are provided with an external coating.

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