A wear-resistant tubular screw conveyor

Abstract

The present invention provides a wear-resistant tubular screw conveyor, comprising: a flexible housing, auger blades, and a bending compensation assembly. The flexible housing has a maximum bending area when bent, which is the area of ​​maximum deformation of the cross-section of the flexible housing in the bent state; auger blades are disposed within the flexible housing and rotate about a first axis to convey material; multiple bending compensation assemblies are spaced apart in the maximum bending area of ​​the flexible housing to limit deformation of the cross-sectional shape of the maximum bending area; the bending compensation assemblies are fixedly connected to the auger blades to ensure that the two maintain synchronous deformation and rotation during bending. This not only reduces material accumulation and improves conveying efficiency, but also prevents damage to the inner wall of the flexible housing caused by the auger blades when the flexible housing is bent.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyors, in particular to an anti-wear tubular screw conveyor. Background Art

[0002] In the construction industry, material transportation is a crucial process, directly impacting construction progress and quality. Traditional material transportation methods rely primarily on auger conveyors, which transport materials through the rotation of spiral blades. However, with the expansion of construction projects and the diversification of construction environments, traditional auger conveyors are gradually revealing some limitations in practical applications.

[0003] Traditional auger conveyors typically use rigid and flexible pipes as material conveying channels. However, during construction, rigid pipes do not bend to adapt to the conveying environment, limiting their use to a single operating scenario. Flexible pipes are susceptible to bending and squeezing, and significant bending during transport can cause deformation, leading to localized material accumulation and impaired material flow. Furthermore, friction between the feed auger and the flexible pipe, particularly when bent, can increase wear and tear, impacting conveying efficiency and the lifespan of the equipment. These issues not only increase equipment maintenance costs but also further impact material conveying efficiency.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Summary of the Invention

[0005] Based on this, it is necessary to provide a wear-resistant tubular screw conveyor to address the problems of material accumulation in current traditional auger conveyors, damage to the conveying hose due to excessive bending, and wear caused by contact with the auger blades, which affect the transportation of materials.

[0006] The above purpose is achieved through the following technical solutions:

[0007] An anti-wear tubular screw conveyor, comprising:

[0008] A bendable shell having a first axis; the bendable shell having a maximum bending area when bent, the maximum bending area being the maximum deformation area of ​​the cross section of the bendable shell in the bent state;

[0009] An auger blade is disposed inside the flexible housing, and the auger blade is capable of rotating about a first axis to convey material;

[0010] a bending compensation assembly, wherein a plurality of the bending compensation assemblies are spaced apart in the maximum bending area; when bending, the bending compensation assemblies limit deformation of the cross-sectional shape of the maximum bending area;

[0011] The outer edge of the auger blade is fixedly connected to the inner side wall of the bending compensation component, and maintains synchronous deformation and rotation with the bending compensation component when bending, so as to drive the material to rotate synchronously in the bending compensation component.

[0012] In one embodiment, the bendable shell includes a hose structure having a maximum bending area, and the bending compensation components are spaced apart in the maximum bending area.

[0013] In one embodiment, the bending compensation component includes a bellows structure, the bellows structure includes protrusions, the protrusions are wound around the bellows structure, and grooves are formed between adjacent protrusions; the width of adjacent protrusions and grooves is the pitch of the bellows structure; the outer edge of the auger blade is arranged at the groove of the bellows structure, and the pitch of the bellows structure is the same as the pitch of the auger blade.

[0014] In one embodiment, the bellows structure is made of metal.

[0015] In one embodiment, the bellows structure is made of stainless steel.

[0016] In one embodiment, a protective tube is further included, which is disposed between the auger blade and the bending compensation assembly and is fixedly connected to the bending compensation assembly.

[0017] In one embodiment, the bending compensation assembly is detachably connected to the bendable shell.

[0018] In one embodiment, a drive assembly is further included for providing power to the auger blades.

[0019] In one embodiment, the power assembly includes a motor and a coupling, and the motor is connected to the auger blade through the coupling.

[0020] In one embodiment, the housing further comprises a feed port and a discharge port, wherein the feed port is arranged at the input end of the flexible shell, and the discharge port is arranged at the output end of the flexible shell.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a wear-resistant tubular screw conveyor, comprising a flexible housing, auger blades, and a bending compensation assembly. The flexible housing has a maximum bending area when bent, which is the area of ​​maximum deformation of the cross-section of the flexible housing in the bent state. The auger blades are disposed within the flexible housing and rotate about a first axis to convey material. A plurality of bending compensation assemblies are spaced apart in the maximum bending area of ​​the flexible housing to limit deformation of the cross-sectional shape of the maximum bending area. The bending compensation assemblies are fixedly connected to the auger blades to ensure that the two maintain synchronous deformation and rotation during bending. This not only reduces material accumulation and improves conveying efficiency, but also prevents damage to the inner wall of the flexible housing caused by the auger blades when the flexible housing is bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a wear-resistant tubular screw conveyor provided in one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of the wear-resistant tubular screw conveyor at point A;

[0025] Figure 3 for Figure 1 Cross-sectional view of the wear-resistant tubular screw conveyor along section AA;

[0026] Figure 4 for Figure 3 A partial enlarged schematic diagram of the wear-resistant tubular screw conveyor at position B;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the bellows in a wear-resistant tubular screw conveyor;

[0028] Figure 6 for Figure 5 A schematic structural diagram of the bellows structure in the wear-resistant tubular screw conveyor from another viewing direction;

[0029] Figure 7 for Figure 6 Cross-sectional view of the bellows structure along section BB in a wear-resistant tubular screw conveyor.

[0030] in:

[0031] 100. Drive assembly; 101. Motor; 102. Coupling;

[0032] 200, hose structure; 201, feed port; 202, discharge port; 210, auger blade;

[0033] 300, bellows structure; 301, protrusion; 302, groove; 310, first flange; 320, second flange; 330, protective tube. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0036] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] Refer to the following Figures 1 to 7 The wear-resistant tubular screw conveyor provided by an embodiment of the present invention is described.

[0038] like Figures 1 to 7As shown, the wear-resistant tubular screw conveyor provided by the embodiment of the present invention is particularly suitable for the transportation of materials in construction. Of course, the equipment can also be applied to transportation work under other working conditions. Specifically, the wear-resistant tubular screw conveyor is composed of a flexible shell and other components, and the flexible shell serves as the installation basis of the entire equipment, and together with other components after installation, it constitutes a complete equipment system. The flexible shell has a cylindrical shape, and its central axis is the first axis. It can be understood that the flexible shell can also be other regular shapes, in which case the first axis can be obtained by artificial setting, but the first axis should be located in the middle of the flexible shell.

[0039] The flexible housing houses auger blades 210 that rotate about a first axis. These blades are not directly connected to the flexible housing, thus preventing wear and tear from direct contact between the two. The auger blades 210 rotate about the first axis to convey material. During transport, the flexible housing effectively prevents material leakage.

[0040] During operation, the flexible housing bends and deforms, particularly at the bend point, where the maximum bending area forms. The cross-sectional structure of the flexible housing changes from a circular shape to a nearly elliptical shape. This deformation causes the inner wall of the flexible housing to come into direct contact with the auger blades 210 within, resulting in severe wear and even rupture. Furthermore, when the flexible housing bends, the auger blades 210 slide relative to the flexible housing, further exacerbating the wear.

[0041] It's understandable that the maximum bending area isn't fixed; its location varies depending on the device's bending state and direction. After numerous tests, we determined that the maximum bending area is concentrated in several key locations.

[0042] Therefore, to address these issues, Figure 1 and Figure 3 As shown, the wear-resistant tubular screw conveyor includes a plurality of bend compensating assemblies connected to the flexible housing and arranged at the multiple maximum bending regions of the flexible housing. The bend compensating assemblies are also fixedly connected to the auger blades 210. When the flexible housing bends, the bend compensating assemblies bend synchronously with the bending trend, ensuring that their cross-sectional shape does not deform, thereby preventing structural changes in the maximum bending region and reducing wear caused by deformation.

[0043] Specifically, both ends of the auger blade 210 are pivotally connected to the flexible housing, ensuring that the auger blade 210 as a whole does not move relative to the flexible housing, thereby maintaining a fixed position in space. Therefore, when bent, the auger blade 210 can synchronously adjust its own axis position while still rotating around its bent axis. Notably, the auger blade 210 is fixedly connected to the bend compensation assembly, further ensuring that the two remain synchronized during movement, thereby ensuring stable transport operations.

[0044] Furthermore, because the bending compensation assembly is fixedly connected to the auger blade 210, the auger blade 210 and the bending compensation assembly can bend and rotate synchronously during bending, ensuring that there is no relative sliding between the two, thereby avoiding the increase in wear caused by relative sliding. This effectively extends the service life of the device and improves transportation efficiency.

[0045] In one embodiment, Figures 1 to 4 As shown, the flexible housing includes a hose structure 200. Hose structure 200 is flexible and can achieve smooth bending operations under various working conditions. Meanwhile, a bend compensation component is provided in the maximum bending area to ensure structural integrity and reduce deformation or wear caused by bending.

[0046] In one embodiment, Figures 1 to 7 As shown, the bending compensation component includes a bellows structure 300. Specifically, the outer side of the bellows structure 300 has multiple layers of regularly arranged corrugated protrusions 301, and the protrusions 301 are wound around the bellows structure 300. Grooves 302 are formed between adjacent protrusions 301, wherein the width of adjacent protrusions 301 and grooves 302 is the pitch of the bellows structure 300. Figure 5 As shown, when bending to the right, Figure 5 In the left and right directions, the protrusion 301 on the right side is subjected to compressive stress, that is, the inner protrusion 301 is squeezed toward the middle of the bellows structure 300, the width of the groove 302 between adjacent protrusions 301 is reduced, and the groove 302 will be squeezed toward the central axis of the bellows structure 300, so that the pitch is relatively reduced; the protrusion 301 on the left side is subjected to tensile stress, that is, the outer protrusion 301 is stretched toward the two ends of the bellows structure 300, the width of the groove 302 between adjacent protrusions 301 is increased, and the groove 302 will expand away from the central axis of the bellows, so that the pitch is relatively increased. Therefore, this relative deformation process on both sides makes the bellows structure 300 exhibit a certain elasticity. On the one hand, it has compressive resistance and deformation resistance, and can adapt to changes in the curved path. On the other hand, it maintains the continuity of the overall structure. It is worth noting that the bellows structure 300 can return to its original shape after bending, which can effectively extend the service life of the device.

[0047] In addition, the protrusion 301 of the bellows structure 300 is spirally wound, which can maintain the circular shape of the cross section of the bellows structure 300 when bending, effectively preventing damage caused by deformation.

[0048] In actual operation, the pitch of the inner corrugation is reduced due to compression and may be smaller than the pitch of the auger blade 210, causing the blade to embed deeper into the groove 302 and even rub against the side wall of the adjacent groove 302. Therefore, in order to solve the above problem, it is further optimized that the outer edge of the auger blade 210 is set at the groove 302 of the bellows structure 300, and the pitch of the bellows structure 300 is the same as the pitch of the auger blade 210. During the bending process of the bellows structure 300, the process of the inner groove 302 squeezing inward and the outer groove 302 expanding outward is carried out in the same direction perpendicular to the central axis of the bellows, that is, the inward squeezing and outward squeezing are along the same direction perpendicular to the central axis of the bellows. Figure 5 The upper left direction is deformed. Therefore, Figure 7 As shown, the auger blade 210 will also passively displace only in the same direction, and its pitch will be adjusted in accordance with the width of the inner or outer groove 302 it contacts, thereby ensuring that the two do not slide relative to each other, thereby ensuring that the installation position of the auger blade 210 is always located exactly in the groove 302 of the bellows. This ensures that the auger blade 210 and the bellows structure 300 move synchronously, avoiding wear caused by relative sliding.

[0049] In one embodiment, the bellows structure 300 is made of metal. Metal can enhance its deformation resistance and ensure that it can return to its original shape after bending, thereby extending the service life of the device.

[0050] Furthermore, the bellows structure 300 is made of stainless steel.

[0051] Further, if Figure 4 As shown, the wear-resistant tubular screw conveyor also includes a protective sleeve 330. This sleeve 330 is fixedly positioned between the auger blades 210 and the inner wall of the bellows structure 300, sealing the gaps between the protrusions 301 of the bellows structure 300 and preventing material from entering the gaps and causing material accumulation. This sleeve also reduces friction and wear between the auger blades 210 and the bellows structure 300, further improving the operational stability of the device and extending its service life.

[0052] In one embodiment, Figure 4As shown, the wear-resistant tubular screw conveyor further includes a first flange 310 and a second flange 320. The first flange 310 is fixedly mounted on the hose structure 200, and the second flange 320 is movably mounted on the bellows structure 300. The hose structure 200 and the bellows structure 300 are detachably connected via the first flange 310 and the second flange 320. Furthermore, a sliding channel is provided on the second flange 320, through which the bellows structure 300 forms a sliding connection with the second flange 320, thereby ensuring the continuous structure of the device and enabling synchronous rotation with the auger blades 210.

[0053] In one embodiment, Figure 1 and Figure 2 As shown, the wear-resistant tubular screw conveyor further includes a drive assembly 100 for providing power to the auger blades 210 .

[0054] Further, if Figure 1 and Figure 2 As shown, the drive assembly 100 includes a motor 101 and a coupling 102, and the motor 101 is connected to the auger blade 210 through the coupling 102. Specifically, the motor 101 drives the auger blade 210 to rotate through the coupling 102, so as to transport the material in the feed port 201 to the discharge port 202.

[0055] In one embodiment, Figure 1 and Figure 2 As shown, the wear-resistant tubular screw conveyor further includes a feed port 201 and a discharge port 202 . The feed port 201 is arranged at one end of the hose structure 200 away from the drive assembly 100 , and the discharge port 202 is arranged at one end of the hose structure 200 close to the drive assembly 100 .

[0056] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A wear-resistant tubular screw conveyor, characterized in that: include: A bendable shell having a first axis; the bendable shell having a maximum bending area when bent, the maximum bending area being the maximum deformation area of ​​the cross section of the bendable shell in the bent state; An auger blade is disposed inside the flexible housing, and the auger blade is capable of rotating about a first axis to convey material; a bending compensation assembly, wherein a plurality of the bending compensation assemblies are spaced apart in the maximum bending area; when bending, the bending compensation assemblies limit deformation of the cross-sectional shape of the maximum bending area; The outer edge of the auger blade is fixedly connected to the inner side wall of the bending compensation component and deforms and rotates synchronously with the bending compensation component when bending; The inner wall of the bending compensation component is a spirally wrapped structure. When the auger blade drives the bending compensation component to rotate synchronously, the spirally wrapped structure can push the material to move along the conveying direction.

2. The wear-resistant tubular screw conveyor according to claim 1, characterized in that: The bendable shell includes a hose structure having a maximum bending area, and the bending compensation components are arranged at intervals in the maximum bending area.

3. The wear-resistant tubular screw conveyor according to claim 2, characterized in that: The bending compensation component includes a bellows structure, which includes protrusions. The protrusions are wound around the bellows structure, and grooves are formed between adjacent protrusions; the width of adjacent protrusions and the grooves of the two is the pitch of the bellows structure; the outer edge of the auger blade is arranged at the groove of the bellows structure, and the pitch of the bellows structure is the same as the pitch of the auger blade.

4. The wear-resistant tubular screw conveyor according to claim 3, characterized in that: The bellows structure is made of metal.

5. The wear-resistant tubular screw conveyor according to claim 4, characterized in that: The bellows structure is made of stainless steel.

6. The wear-resistant tubular screw conveyor according to claim 1, characterized in that: The bending compensation assembly is detachably connected to the flexible shell.

7. The wear-resistant tubular screw conveyor according to claim 1, characterized in that: Also included is a drive assembly for providing power to the auger blades.

8. The wear-resistant tubular screw conveyor according to claim 7, characterized in that: The drive assembly includes a motor and a coupling, and the motor is fixedly connected to the auger blade through the coupling.

9. The wear-resistant tubular screw conveyor according to claim 1, characterized in that: It also includes a feed port and a discharge port. The feed port is arranged at the input end of the flexible shell, and the discharge port is arranged at the output end of the flexible shell.

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