Rotating device

Abstract

The present application discloses a rotating device, comprising a rotating cylinder, a first supporting component and a scraper assembly, wherein the first supporting component and the scraper assembly are both arranged on the rotating cylinder, the rotating cylinder can rotate relative to the first supporting component, the rotation axis of the rotating cylinder is the first axis, the scraper assembly can rotate relative to the first supporting component, the rotation axis of the scraper assembly is the second axis, and a first distance exists between the first axis and the second axis; the scraper assembly comprises a scraper, and a rotation trajectory of the rotating cylinder and a blade rotation trajectory of the scraper have an intersection, and when the rotating cylinder has a convex deformation portion and the first distance is greater than a radial dimension of the convex deformation portion along the rotating cylinder, the scraper assembly rotates with the rotating cylinder within a first rotation stroke through the limited cooperation between the scraper and the convex deformation portion in the circumferential direction; within the second rotation stroke, the scraper is separated from the convex deformation portion, and the first rotation stroke and the second rotation stroke are sequentially connected in the circumferential direction of the blade rotation trajectory.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning attachments on the inner wall of a rotary kiln, and specifically relates to a rotary device. Background Art

[0002] In the high temperature environment of the rotary kiln, with the rotation of the rotary kiln, the inner wall of the rotary kiln is prone to coking or material hardening, which affects the residence time of the material in the rotary kiln and the heat transfer efficiency of the tube wall. In addition, with the increase of the thickness of the coke layer or hardening layer, the internal space of the rotary kiln is reduced, and the coke layer or hardening layer will also increase the weight of the rotary kiln and affect the service life of the rotary kiln. Therefore, it is necessary to clean the coke layer or hardening layer.

[0003] The related art discloses a coke cleaning system, which uses a scraper to scrape the coke layer or the hardened layer, and the coke or hardened material falls off. However, when the inner wall of the rotary kiln is partially convex or deformed, the inner wall of the rotary kiln is easy to directly contact the scraper, that is, the two are in close contact, and the scraper has a tendency to rotate with the rotary kiln. In severe cases, the scraper will be damaged, affecting the coke cleaning work of the scraper. At the same time, the scraper will also hinder the rotation of the rotary kiln. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide a rotary device that can solve the problem in the related art that the inner wall surface of the rotary kiln has a convex deformation portion that affects the cleaning work.

[0005] The embodiment of the present application provides a rotating device, comprising a rotating cylinder, a first supporting component and a scraper assembly, wherein:

[0006] The first support member and the scraper assembly are both disposed in the rotating cylinder, the rotating cylinder can rotate relative to the first support member, the rotation axis of the rotating cylinder is a first axis, the scraper assembly can rotate relative to the first support member, the rotation axis of the scraper assembly is a second axis, and a first distance exists between the first axis and the second axis;

[0007] The scraper assembly includes a scraper, and the rotation trajectory of the rotary cylinder and the rotation trajectory of the blade of the scraper have an intersection;

[0008] When the inner wall of the rotating cylinder has a raised deformation portion and the first distance is greater than the radial dimension of the raised deformation portion along the rotating cylinder, the scraper assembly rotates with the rotating cylinder in a first rotation stroke through the limited cooperation between the scraper and the raised deformation portion in the circumferential direction; in the second rotation stroke, the scraper is separated from the raised deformation portion, and the first rotation stroke and the second rotation stroke are connected in sequence in the circumferential direction of the blade rotation trajectory.

[0009] In the embodiment of the present application, since the rotation axes of the rotating cylinder and the scraper assembly are different, and the rotation trajectory of the rotating cylinder and the motion trajectory of the blade of the scraper have an intersection, the blade of the scraper can slide and contact with the inner wall surface of the rotating cylinder during the rotation of the rotating cylinder. When a convex deformation portion appears on the inner wall surface of the rotating cylinder, the convex deformation portion and the blade of the scraper are in limited contact in the circumferential direction, and the convex deformation portion prevents the scraper assembly from sliding relative to the inner wall surface of the rotating cylinder, thereby driving the scraper assembly to rotate with the rotating cylinder within the first rotation stroke.

[0010] In the first rotation stroke, the scraper assembly rotates around the second axis, and the rotating cylinder rotates around the first axis. The rotation trajectories of the two deviate, so the scraper assembly gradually moves away from the intersection position, and the distance between the scraper blade and the inner wall surface of the rotating cylinder gradually increases. The first distance between the first axis and the second axis is equal to the maximum distance between the rotation trajectory of the rotating cylinder and the movement trajectory of the scraper blade. Therefore, when the first distance is greater than the radial dimension of the protruding deformation part along the rotating cylinder, it means that during the process of the scraper assembly from the first rotation stroke to the second rotation stroke, the distance value between the scraper blade and the inner wall surface of the rotating cylinder can be increased to be greater than the radial dimension of the protruding deformation part along the rotating cylinder, thereby separating the scraper from the protruding deformation part. After the scraper is separated from the protruding deformation part, the scraper loses the driving force of the protruding deformation part on it, and can rotate in the opposite direction around the second axis to the intersection position. The scraper continues to slide in contact with other positions of the inner wall surface of the rotating cylinder to continue to perform coke cleaning or hardening removal work.

[0011] With such arrangement, when a bulge or other deformed portion appears on the inner wall of the rotating cylinder, the scraper assembly can avoid the bulge or deformed portion, so the rotating cylinder will not damage the scraper assembly, allowing the scraper assembly to continue to perform the work of clearing coke or removing compaction, and the scraper will not hinder the rotation of the rotating cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the rotary device disclosed in the embodiment of the present application;

[0013] Figure 2 is a side view of the rotary device disclosed in the embodiment of the present application when r1 is less than r2;

[0014] Figure 3 is a side view of the rotary device disclosed in the embodiment of the present application when r1 is equal to r2;

[0015] Figure 4 is a side view of the rotary device disclosed in the embodiment of the present application when r1 is greater than r2;

[0016] Figure 5is a side view of the support shaft, the second support member and the scraper assembly disclosed in the embodiment of the present application;

[0017] Figure 6 yes Figure 5 The enlarged view of point D in the middle;

[0018] Figure 7 It is a structural schematic diagram of the scraper assembly disclosed in the embodiment of the present application;

[0019] Figure 8 It is a schematic diagram of the connection between the scraper assembly and the support shaft disclosed in the embodiment of the present application.

[0020] Description of reference numerals:

[0021] 100 - second supporting member; 110 - annular portion; 120 - abutment assembly; 121 - plug-in portion; 122 - sleeve portion; 123 - abutment portion; 130 - annular connecting portion; 140 - reinforcing rib;

[0022] 200-support shaft;

[0023] 300-scraper assembly; 310-sleeve portion; 311-first arc-shaped member; 312-second arc-shaped member; 320-connecting member; 330-scraper; 340-counterweight block;

[0024] 410-first friction plate; 420-second friction plate;

[0025] 510-first limiting structure; 520-second limiting structure;

[0026] 600-rotating cylinder;

[0027] A-first axis; B-second axis; C-symmetry plane. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] The following is a detailed description of the rotary device provided in the embodiment of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0031] Please refer to Figure 1-Figure 8 The present application discloses a rotary device, which is used to remove attachments on the inner wall surface of a rotary drum 600. The rotary drum 600 may be, but is not limited to, a rotary kiln. The rotary device includes a rotary drum 600, a first supporting component, and a scraper assembly 300. The attachments on the inner wall surface of the rotary drum 600 may be a coke layer, a hardened layer, or other attachments; the scraper assembly 300 is used to remove attachments on the inner wall surface of the rotary drum 600, and the first supporting component provides support for the scraper assembly 300 and the rotary drum 600.

[0032] The first supporting component and the scraper assembly 300 are both arranged inside the rotating cylinder 600. The rotating cylinder 600 can rotate relative to the first supporting component. The rotation axis of the rotating cylinder 600 is the first axis A. The scraper assembly 300 can rotate relative to the first supporting component. The rotation axis of the scraper assembly 300 is the second axis B. There is a first distance between the first axis A and the second axis B.

[0033] Specifically, the first support member and the inner wall surface of the rotating cylinder 600 can be directly rotatably connected, or can be rotatably connected in an indirect manner. For example, the rotating cylinder 600 can be connected to an intermediate transition piece, and both the intermediate transition piece and the first support member are provided with axial holes, and the pin shaft passes through the two axial holes in sequence, so as to achieve the indirect rotatable connection between the first support member and the rotating cylinder 600. Of course, other rotatable connection methods can also be used, as long as the rotating cylinder 600 can rotate relative to the first support member around the first axis A. Similarly, the scraper assembly 300 and the first support member can be directly rotatably connected, or can be rotatably connected in an indirect manner. Optionally, both the scraper assembly 300 and the first supporting component may be provided with an axial hole, and a pin shaft may pass through the two axial holes in sequence to achieve a rotational connection between the two; or the scraper assembly 300 may be provided with an opening, and the first supporting component may pass through the opening and rotate with the scraper assembly 300. Of course, the scraper assembly 300 and the first supporting component may also be connected by other rotational connection methods, as long as the scraper assembly 300 can rotate around the second axis B relative to the first supporting component.

[0034] The scraper assembly 300 includes a scraper 330. The rotation trajectory of the rotating cylinder 600 and the blade rotation trajectory of the scraper 330 have an intersection, which means that during the rotation of the rotating cylinder 600, the blade of the scraper 330 can slide in contact with the inner wall surface of the rotating cylinder 600, and the scraper 330 floats up and down at the intersection. When the rotating cylinder 600 has a convex deformation portion and the first distance is greater than the radial dimension of the convex deformation portion along the rotating cylinder 600, the scraper assembly 300 rotates with the rotating cylinder 600 in the first rotation stroke through the limited cooperation between the scraper 330 and the convex deformation portion in the circumferential direction; in the second rotation stroke, the scraper 330 is separated from the convex deformation portion. Among them, the first rotation stroke and the second rotation stroke are connected in sequence in the circumferential direction of the blade rotation trajectory, that is, they are connected in sequence in the circumferential direction of the second axis B.

[0035] Specifically, when a convex deformation portion appears on the inner wall surface of the rotating cylinder 600, the convex deformation portion is in limited contact with the blade of the scraper 330 in the circumferential direction, and the convex deformation portion prevents the scraper assembly 300 from sliding relative to the inner wall surface of the rotating cylinder 600, thereby driving the scraper assembly 300 to rotate within the first rotation stroke along with the rotating cylinder 600. Within the first rotation stroke, the scraper assembly 300 rotates around the second axis B, and the rotating cylinder 600 rotates around the first axis A. The rotation trajectories of the two deviate from each other, so the scraper assembly 300 gradually moves away from the intersection position, and the distance between the blade of the scraper 330 and the inner wall surface of the rotating cylinder 600 gradually increases.

[0036] The first distance between the first axis A and the second axis B is equal to the maximum distance between the rotation trajectory of the rotating cylinder 600 and the motion trajectory of the blade of the scraper 330, and is also equal to the maximum distance between the blade of the scraper 330 and the inner wall surface of the rotating cylinder 600. Therefore, when the first distance is greater than the radial dimension of the convex deformation portion along the rotating cylinder 600, it means that the distance value between the blade of the scraper 330 and the inner wall surface of the rotating cylinder 600 can be increased to be greater than the radial dimension of the convex deformation portion along the rotating cylinder 600, so as to achieve the separation of the scraper 330 and the convex deformation portion.

[0037] After the scraper 330 is separated from the protruding deformed portion, the scraper 330 loses the driving force of the protruding deformed portion and can rotate in the opposite direction around the second axis B. The scraper 330 returns to the intersection position and continues to slide in contact with other positions of the inner wall surface of the rotating cylinder 600 to continue to remove the attachments.

[0038] Specifically, in the first rotation stroke, since the blade of the scraper assembly 300 and the deformed protrusion are limited in the circumferential direction, the rotation direction of the scraper assembly 300 is consistent with the rotation direction of the rotating cylinder 600; in the second rotation stroke, the rotating cylinder 600 continues to rotate, the blade of the scraper assembly 300 is separated from the inner wall surface of the rotating cylinder 600, and the scraper assembly 300 stops rotating with the rotating cylinder 600. It should be noted that in the first rotation stroke, the rotation direction of the scraper assembly 300 and the rotation direction of the rotating cylinder 600 are both Figure 2 Clockwise direction of view.

[0039] With such arrangement, when a raised deformed portion appears on the inner wall surface of the rotating cylinder 600, the scraper assembly 300 can avoid the raised deformed portion, so the rotating cylinder 600 will not damage the scraper assembly 300, so that the scraper assembly 300 can continue to perform the work of clearing coke or removing the hardened layer, and the scraper 330 will not hinder the rotation of the rotating cylinder 600.

[0040] In an optional embodiment, the rotary device further includes a second support component 100, the second support component 100 is connected to the inner wall surface of the rotating cylinder 600, the second support component 100 is disposed between the rotating cylinder 600 and the second support component 100, and the second support component 100 is connected to the rotating cylinder 600, and the second support component 100 rotates relative to the first support component along with the rotating cylinder 600. Specifically, the second support component 100 is rotationally connected to the first support component, and the rotation axis of the second support component 100 is the first axis A, that is, the rotating cylinder 600 and the first support component are rotationally connected through the second support component 100, and the second support component 100 provides support for both the first support component and the rotating cylinder 600.

[0041] Optionally, the second support component 100 can be connected to the inner wall surface of the rotating cylinder 600 by a fixed connection method such as welding; the second support component 100 can also have multiple contact points, each contact point is respectively abutted against the inner wall surface of the rotating cylinder 600. Of course, the second support component 100 and the rotating cylinder 600 can also be connected by other methods.

[0042] Optionally, the first end of the first support component may be connected to the second support component 100 via a pin shaft, or the second support component 100 may have an opening, the first support component passes through the opening, and rotates with the second support component 100; of course, the second support component 100 and the first support component may also be connected via other rotational connection methods, and the structure of the second support component 100 is not limited here.

[0043] With such arrangement, the second supporting member 100 can provide support to both the first supporting member and the rotating cylinder 600 ; moreover, the rotation of the rotating cylinder 600 around the first axis A and the rotation of the scraper assembly 300 around the second axis B are not affected.

[0044] In an optional embodiment, the first support component is a support shaft 200, and the second support component 100 includes an annular portion 110. The axis of the support shaft 200 is the second axis B, and the axis of the annular portion 110 is the first axis A. The support shaft 200 passes through the annular portion 110, and the two are rotated together. Since the axes of the support shaft 200 and the annular portion 110 are different, the two are not completely in contact, but the outer surface of the support shaft 200 is in contact with the inner wall surface of the annular portion 110, and the annular portion 110 can rotate relative to the support shaft 200 around the first axis A. In this way, the support shaft 200 will not affect the first support component 100 to rotate with the rotating cylinder 600.

[0045] like Figure 1 , Figure 7 and Figure 8 As shown, the scraper assembly 300 includes a sleeve portion 310, which is sleeved on the surface of the support shaft 200 and rotates with the support shaft 200, and the scraper 330 is connected to the sleeve portion 310. Specifically, the sleeve portion 310 has an opening, and the axis of the opening is the second axis B, that is, the opening is coaxial with the support shaft 200, so the inner wall surface of the sleeve portion 310 is completely in contact with the outer surface of the support shaft 200, and the scraper assembly 300 can rotate around the second axis B relative to the support shaft 200.

[0046] In this way, the first supporting component is set as the supporting shaft 200, which not only facilitates the rotation of the annular portion 110 of the second supporting component 100 relative to the supporting shaft 200, but also facilitates the rotation of the sleeve portion 310 of the scraper assembly 300 relative to the supporting shaft 200, thereby ensuring the rotational coordination relationship between the three and making the connection relationship more stable.

[0047] In an optional embodiment, the second support component 100 includes at least two abutment components 120, which are arranged on the outer periphery of the annular portion 110 and distributed along the circumference of the annular portion 110, and each abutment component 120 is respectively connected to the inner wall surface of the rotating cylinder 600. Specifically, one end of the abutment component 120 is connected to the outer periphery of the annular portion 110, and the other end of the abutment component 120 is connected to the inner wall surface of the rotating cylinder 600, wherein one end of the abutment component 120 and the annular portion 110 can be connected by a fixed connection method such as welding, or can be connected by other methods; the other end of the abutment component and the inner wall surface of the rotating cylinder 600 can be connected by a fixed connection method such as welding, or can be directly abutted against the inner wall surface of the rotating cylinder 600, that is, the abutment component is in close contact with the inner wall surface of the rotating cylinder 600, and the second support component 100 can rotate around the first axis A with the rotating cylinder 600.

[0048] With such arrangement, each abutting assembly 120 is respectively connected to the inner wall surface of the rotating cylinder 600 , so there are at least two connection points between the second supporting component 100 and the rotating cylinder 600 , thereby ensuring the stability of the connection between the second supporting component 100 and the rotating cylinder 600 .

[0049] In an optional embodiment, if Figure 5 and Figure 6 As shown, the abutment assembly 120 includes a plug-in portion 121, a sleeve portion 122 and an abutment portion 123. The sleeve portion 122 is sleeved on the outer periphery of the plug-in portion 121, and along the radial direction of the annular portion 110, the sleeve portion 122 and the plug-in portion 121 are slidably matched.

[0050] One of the plug-in portion 121 and the sleeve portion 122 is provided on the annular portion 110, and the other is connected to the abutting portion 123, and the abutting portion 123 is connected to the inner wall surface of the rotary cylinder 600. Specifically, the plug-in portion 121 may be connected to the annular portion 110, and the sleeve portion 122 may be connected to the abutting portion 123; or the plug-in portion 121 may be connected to the abutting portion 123, and the sleeve portion 122 may be connected to the annular portion 110. In this embodiment, one end of the plug-in portion 121 is connected to the annular portion 110, and the other end of the plug-in portion 121 extends into the interior of the sleeve portion 122 and is slidably matched with the sleeve portion 122, and at the same time, the end of the sleeve portion 122 is connected to the abutting portion 123.

[0051] Specifically, the plug-in portion 121 and the annular portion 110 can be directly connected by welding or the like, or can be indirectly connected by an intermediate connecting piece, as long as the two are relatively fixed; the end of the sleeve portion 122 and the abutting portion 123 can also be connected by a fixed connection method such as welding or by other methods, as long as the two are relatively fixed.

[0052] Moreover, if Figure 6 As shown, there is a gap between the end of the plug-in portion 121 and the end of the sleeve portion 122. In this way, during the rotation of the rotary cylinder 600, since the internal space of the rotary cylinder 600 is in a high temperature environment, according to the principle of thermal expansion and contraction, a certain amount of thermal expansion will occur between the plug-in portion 121 and the sleeve portion 122, and the thermal expansion will automatically compensate for the gap between the end of the sleeve portion 122 and the end of the plug-in portion 121, ensuring that there is no displacement between the annular portion 110 and the abutting portion 123, and ensuring that the relative position of the two is stable.

[0053] In this embodiment, the abutment portion 123 is an arc-shaped structure, and the abutment portion 123 fits against the inner wall surface of the rotating cylinder 600, thereby increasing the contact area between the abutment portion 123 and the rotating cylinder 600, reducing contact stress, and avoiding damage to the inner wall surface of the rotating cylinder 600.

[0054] Alternatively, if Figure 1-Figure 5 As shown, the plug-in portion 121 is indirectly connected to the annular portion 110 through an intermediate connector, and the second support member 100 further includes an annular connector 130 and a reinforcing rib 140, wherein the annular connector 130 serves as an intermediate connector. The annular connector 130 is disposed on the outer periphery of the annular portion 110, and the axis is the first axis A, and each plug-in portion 121 is connected to the annular connector 130. Moreover, the annular connector 130 is connected to the annular portion 110 through the reinforcing rib 140, and the number of the reinforcing rib 140 is multiple and distributed along the circumference of the annular portion 110. That is, one end of the reinforcing rib 140 is connected to the annular connector 130, and the other end of the reinforcing rib 140 is connected to the annular portion 110.

[0055] Specifically, the annular connecting portion 130 and the plug-in portion 121 , the reinforcing rib 140 and the annular connecting portion 130 , and the reinforcing rib 140 and the annular portion 110 may be connected by welding or the like, and of course, may also be connected by other means.

[0056] With such arrangement, the various plug-in parts 121 are connected together through the annular connecting part 130, thereby ensuring the connection stability between the various plug-in parts 121; at the same time, the connection stability between the annular connecting part 130 and the annular part 110 is strengthened through the reinforcing ribs 140, thereby improving the connection stability between the various plug-in parts 121.

[0057] In an optional embodiment, at least one of the second support member 100 and the scraper assembly 300 is at least two in number and is spaced apart along the axial direction of the support shaft 200. Specifically, the number of the second support members 100 may be at least two and are spaced apart along the axis of the support shaft 200; the number of the scraper assembly 300 may be at least two and are spaced apart along the axis of the support shaft 200; or the number of the second support member 100 and the scraper assembly 300 may both be at least two, the second support member 100 is spaced apart along the axis of the support shaft 200, and the scraper assembly 300 is also spaced apart along the axis of the support shaft 200.

[0058] In this embodiment, if Figure 1 As shown, the number of the second supporting component 100 and the number of the scraper assembly 300 are both at least two, and the two are respectively arranged at intervals along the axis of the supporting shaft 200 .

[0059] In this way, at least two second support members 100 support the support shaft 200 at different positions, thereby preventing the support shaft 200 from being offset along the first axis A. At the same time, at least two scraper assemblies 300 are in independent contact with the inner wall surface of the rotating cylinder 600. When a convex deformation portion appears on the inner wall surface of the rotating cylinder 600, only some scraper assemblies 300 in close contact with the convex deformation portion can rotate with the rotating cylinder 600, and not all scraper assemblies 300 rotate with the rotating cylinder 600. The other scraper assemblies 300 are in normal sliding contact with the inner wall surface of the rotating cylinder 600, thereby ensuring the continuous operation of coke cleaning or compaction removal.

[0060] Alternatively, if Figure 7 and Figure 8 As shown, the sleeve portion 310 includes a first arc-shaped member 311 and a second arc-shaped member 312, the first arc-shaped member 311 and the second arc-shaped member 312 surround the support shaft 200 together, and the first arc-shaped member 311 and the second arc-shaped member 312 are detachably connected, and one of the first arc-shaped member 311 and the second arc-shaped member 312 is connected to the scraper 330. The number of the first arc-shaped member 311 and the second arc-shaped member 312 can be one or more. In short, the first arc-shaped member 311 and the second arc-shaped member 312 can be matched to surround the entire support shaft 200, thereby realizing the rotational match between the sleeve portion 310 and the support shaft 200.

[0061] Furthermore, the first arc-shaped member 311 may be connected to the scraper 330 , or the second arc-shaped member 312 may be connected to the scraper 330 . The first arc-shaped member 311 or the second arc-shaped member 312 may be directly connected to the scraper 330 , or may be indirectly connected to the scraper 330 .

[0062] Specifically, the first arc-shaped member 311 and the second arc-shaped member 312 may be connected via threaded fasteners (such as bolts), or the first arc-shaped member 311 and the second arc-shaped member 312 may be connected via a snap-fit ​​structure. Of course, a detachable connection may also be achieved via other methods.

[0063] In this embodiment, if Figure 8 As shown, the first arc-shaped member 311 and the second arc-shaped member 312 each include two arc-shaped bars, a first connecting bar and a second connecting bar, wherein the two arc-shaped bars are spaced apart along the axial direction of the support shaft 200, the first connecting bar connects the first ends of the two arc-shaped bars, and the second connecting bar connects the second ends of the two arc-shaped bars. When the first arc-shaped member 311 and the second arc-shaped member 312 cooperate with each other, the first connecting bar of the first arc-shaped member 311 and the first connecting bar of the second arc-shaped member 312 fit together, and at the same time, the second connecting bar of the first arc-shaped member 311 and the second connecting bar of the second arc-shaped member 312 fit together. Both the two first connecting bars and the two second connecting bars are provided with openings, and the threaded fasteners sequentially pass through the two openings and are tightened. The threaded fasteners may be bolts and nuts.

[0064] With such configuration, the first arc-shaped member 311 and the second arc-shaped member 312 are connected or separated as needed, thereby achieving installation or removal of the scraper 330 .

[0065] In the technical solution of the present application, the first axis A and the second axis B are aligned along the vertical direction, and the first axis A and the second axis B are arranged in sequence along the vertical direction. Figure 2 As shown, the first axis A and the second axis B are arranged vertically. It should be noted that the "plumb direction" here refers to the direction of gravity.

[0066] In this way, when the raised deformable portion and the scraper 330 are limited and cooperated, and the scraper assembly 300 rotates with the rotating cylinder 600 within the first rotation stroke, the scraper assembly 300 moves from bottom to top, and after the raised deformable portion and the scraper 330 are separated from each other, the scraper assembly 300 can move from top to bottom by relying on its own gravity to the intersection of the two trajectories. No external force is required during the process, which is more convenient and ensures the smooth progress of the cleaning work.

[0067] In an optional embodiment, the radius of the rotation trajectory of the rotating cylinder 600 is r1, the radius of the blade motion trajectory of the scraper 330 is r2, and the first axis A and the second axis B are symmetrical about the symmetry plane C. Figure 2As shown, when r1 is less than r2, the intersection is located on the side of the symmetry plane C facing the first axis A. Specifically, the intersection may be located higher than the first axis A, or between the first axis A and the symmetry plane C. In this case, the component force of the gravity of the scraper assembly 300 in the tangential direction of the rotating cylinder 600 is the force of the scraper assembly 300 on the rotating cylinder 600, so the force of the scraper assembly 300 on the inner wall of the rotating cylinder 600 is less than the gravity of the scraper assembly 300.

[0068] Alternatively, if Figure 3 As shown, when r1 is equal to r2, the intersection coincides with the symmetry plane C. At this time, the intersection is located between the first axis A and the second axis B, and the distance from the intersection to the first axis A is equal to the distance from the intersection to the second axis B. In this case, the tangent direction of the rotating cylinder 600 coincides with the gravity direction of the scraper assembly 300, so the force of the scraper assembly 300 on the inner wall of the rotating cylinder 600 is equal to the gravity of the scraper assembly 300, and the force of the scraper assembly 300 on the inner wall of the rotating cylinder 600 is greater.

[0069] Alternatively, if Figure 4 As shown, when r1 is greater than r2, the intersection is located on the side of the symmetry plane C facing the second axis B. Specifically, the intersection may be located lower than the second axis B, or between the second axis B and the symmetry plane C. In this case, the component force of the gravity of the scraper assembly 300 in the tangential direction of the rotating cylinder 600 is the force of the scraper assembly 300 on the rotating cylinder 600, so the force of the scraper assembly 300 on the inner wall of the rotating cylinder 600 is less than the gravity of the scraper assembly 300.

[0070] Therefore, the relationship between r1 and r2 determines the position of the intersection, and further determines the contact position between the blade of the scraper 330 and the inner wall surface of the rotating cylinder 600. The contact position between the scraper 330 and the rotating cylinder 600 can be determined by setting the radius r1 of the rotation trajectory of the rotating cylinder 600 or setting the radius r2 of the blade rotation trajectory as needed.

[0071] As the scraper 330 scrapes away the attached matter, the scraping end of the scraper 330 is gradually worn. Therefore, under the action of gravity of the scraper assembly 300, the scraper assembly 300 gradually rotates downward around the first axis A in a direction opposite to the rotation direction of the rotary cylinder 600. That is, the scraper assembly 300 rotates around the first axis A. Figure 2-Figure 4 The scraper 330 rotates counterclockwise to keep the attachments on the inner wall surface of the rotating cylinder 600 in continuous contact.

[0072] In the case where r1 is equal to r2, and in the case where r1 is greater than r2, refer to Figure 3 and Figure 4As shown, during the process of the scraper assembly rotating around the first axis A due to wear, the inclination angle of the scraper assembly 300 relative to the symmetry plane C gradually increases, that is, the position of the intersection is getting farther and farther away from the symmetry plane C, and the force exerted by the scraper assembly 300 on the inner wall surface of the rotating cylinder 600 in the tangential direction of the rotating cylinder 600 becomes smaller and smaller, which leads to a decrease in the effect of the scraper 330 on removing attachments from the rotating cylinder 600.

[0073] On the other hand, when r1 is less than r2, refer to Figure 2 As shown, during the process of the scraper assembly 300 rotating around the first axis A due to wear, the inclination angle of the scraper assembly 300 relative to the symmetry plane C gradually decreases, that is, the position of the intersection is getting closer and closer to the symmetry plane C, and the scraper assembly 300 exerts a greater force on the inner wall surface of the rotating cylinder 600 in the tangential direction of the rotating cylinder 600, so the scraper 330 improves the cleaning effect of the attachments on the rotating cylinder 600, and at the same time, the service life of the scraper assembly 300 is also longer. Taking comprehensive considerations, it is more appropriate to use a solution in which r1 is less than r2 for the rotating device in actual application.

[0074] In an optional embodiment, if Figure 1 , Figure 7-Figure 8 As shown, the scraper assembly 300 also includes a connecting member 320 and a counterweight 340, wherein the first end of the connecting member 320 is connected to the first supporting member, where the connecting member 320 is connected to the sleeve portion 310 of the first supporting member, and the second end of the connecting member 320 is connected to the scraper 330, that is, the scraper 330 is indirectly connected to the sleeve portion 310 via the intermediate connecting member. Specifically, the first end of the connecting member 320 can be connected to the first arc-shaped member 311, or the second arc-shaped member 312, and one of the first arc-shaped member 311 and the second arc-shaped member 312 can be connected to the connecting member 320 by welding or the like; the second end of the connecting member 320 can also be connected to the scraper 330 by welding, or by a threaded fastener.

[0075] The connector 320 is also provided with an installation position, and the counterweight 340 is detachably installed at the installation position. Optionally, the counterweight 340 and the connector 320 can be connected by a clamping structure or a threaded fastener, so as to achieve the installation and removal of the counterweight 340. Of course, the counterweight 340 can also be detachably installed on the connector 320 by other means.

[0076] Specifically, the connector 320 is connected to a clamping column, and the counterweight block 340 is provided with a clamping slot. The clamping column extends into the clamping slot, so that the counterweight block 340 is installed on the clamping column, thereby realizing the installation of the counterweight block 340. In this case, the clamping column is the installation position of the connector 320.

[0077] Moreover, the number of the counterweight blocks 340 can be one or more. In this way, when the number of the counterweight blocks 340 needs to be increased, the counterweight blocks 340 can be directly hung on the clamping column; when the number of the counterweight blocks 340 needs to be reduced, the counterweight blocks 340 can be directly taken down.

[0078] In this embodiment, the scraper assembly 300 includes two connecting members 320, and the two connecting members 320 are respectively connected to the two arc strips of the first arc member 311, so the two connecting members 320 are arranged at intervals. The two connecting members 320 are connected by a connecting plate, and the clamping column is set on the connecting plate, so the installed counterweight block 340 is located between the two connecting members 320.

[0079] With such arrangement, the number of the counterweight blocks 340 can be increased or decreased as needed, thereby changing the weight of the scraper assembly 300, and further changing the force of the scraper 330 on the inner wall surface of the rotating cylinder 600, thereby changing the degree of removal of the attached matter.

[0080] In an optional embodiment, the rotary device includes at least one of a first friction plate 410 and a second friction plate 420. That is, the rotary device may include the first friction plate 410, may include the second friction plate 420, or may include the first friction plate 410 and the second friction plate 420. Specifically, the first friction plate 410 and the second friction plate 420 may be annular, may be arc-shaped, or may be other shapes or structures.

[0081] In this embodiment, if Figure 1 and Figure 8 As shown, the first friction plate 410 and the second friction plate 420 are both annular structures, and the annular structure has an inner wall surface and an outer wall surface. The first friction plate 410 is arranged between the annular portion 110 and the support shaft 200, and the outer wall surface of the first friction plate 410 contacts the inner wall surface of the annular portion 110, and the inner wall surface of the first friction plate 410 contacts the support shaft 200; the second friction plate 420 is arranged between the support shaft 200 and the sleeve portion 310, and the outer wall surface of the second friction plate 420 contacts the sleeve portion 310, and the inner wall surface of the second friction plate 420 contacts the support shaft 200.

[0082] By such arrangement, the first friction plate 410 is used to prevent the annular portion 110 from directly contacting the support shaft 200, thereby preventing the annular portion 110 from continuously rotating and causing wear to the support shaft 200; similarly, the second friction plate 420 is used to prevent the support shaft 200 from directly contacting the sleeve portion 310, thereby preventing the sleeve portion 310 from continuously rotating and causing wear to the support shaft 200.

[0083] In an optional embodiment, the first friction plate 410 can be detachably disposed between the annular portion 110 and the support shaft 200, and the second friction plate 420 can also be detachably disposed between the support shaft 200 and the sleeve portion 310. In this embodiment, the first friction plate 410 is detachably disposed between the annular portion 110 and the support shaft 200, and the second friction plate 420 is detachably disposed between the support shaft 200 and the sleeve portion 310.

[0084] Specifically, the first friction plate 410 can be installed on the inner wall surface of the annular portion 110 by means of threaded connectors, and the second friction plate 420 can also be installed on the inner wall surface of the sleeve portion 310 by means of threaded connectors. Of course, the first friction plate 410 and the second friction plate 420 can also adopt other detachable installation methods.

[0085] In this embodiment, if Figure 8 As shown, the second friction plate 420 is directly stuck between the sleeve portion 310 and the support shaft 200. Specifically, the second friction plate 420 is sleeved on the outer periphery of the support shaft 200, and the first arc-shaped member 311 and the second arc-shaped member 312 surround the support shaft 200, and the first arc-shaped member 311 and the second arc-shaped member 312 are respectively in contact with the second friction plate 420, and after the first arc-shaped member 311 and the second arc-shaped member 312 are connected, the second friction plate 420 is stuck between the sleeve portion 310 and the support shaft 200. In this way, when the first arc-shaped member 311 and the second arc-shaped member 312 are connected, the second friction plate 420 is installed, and when the first arc-shaped member 311 and the second arc-shaped member 312 are separated, the second friction plate 420 can be removed.

[0086] With such configuration, the first friction plate 410 or the second friction plate 420 can be installed or removed as needed, thereby replacing the first friction plate 410 or the second friction plate 420 .

[0087] In an optional embodiment, the rotating device includes at least one of a first limiting structure 510 and a second limiting structure 520, that is, the rotating device may include the first limiting structure 510, may include the second limiting structure 520, or may include the first limiting structure 510 and the second limiting structure 520. At least one of the first limiting structure 510 and the second limiting structure 520 is disposed on the surface of the support shaft 200, and in the axial direction of the support shaft 200, the first limiting structure 510 is in limiting contact with the sleeve portion 310, and the second limiting structure 520 is in limiting contact with the annular portion 110.

[0088] Specifically, the first limiting structure 510 and the second limiting structure 520 can be limiting blocks, limiting plates, or limiting strips. In short, there is no limitation on the specific structures of the first limiting structure 510 and the second limiting structure 520, as long as the first limiting structure 510 is in limiting contact with the sleeve part 310 and the second limiting structure 520 is in limiting contact with the annular part 110 in the axial direction along the support shaft 200.

[0089] In this embodiment, if Figure 1 As shown, the rotary device includes a first limiting structure 510 and a second limiting structure 520, and the first limiting structure 510 and the second limiting structure 520 are both arranged on the surface of the support shaft 200. The first limiting structure 510 is a first limiting block, and the number of the first limiting blocks is multiple and is spaced apart along the axial direction of the support shaft 200. Each sleeve portion 310 corresponds to two first limiting blocks, and along the axial direction of the support shaft 200, the two first limiting blocks are respectively in limiting contact with both ends of the sleeve portion 310.

[0090] The second limiting structure 520 includes a second limiting block and a limiting plate, wherein the number of the second limiting blocks and limiting plates is not limited, the second limiting blocks and limiting plates are both arranged on the surface of the support shaft 200, and along the axial direction of the support shaft 200, the second limiting blocks and limiting plates are respectively located on both sides of the annular portion 110, and the second limiting blocks and limiting plates are respectively in contact with the annular portion 110.

[0091] In this way, the scraper assembly 300 is axially limited by the first limiting structure 510 to avoid axial displacement of the scraper assembly 300 along the support shaft 200; the second support component 100 is axially limited by the second limiting structure 520 to avoid axial displacement of the second support component 100 along the support shaft 200.

[0092] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A rotary device, characterized in that: It comprises a rotating cylinder (600), a first supporting component and a scraper assembly (300), wherein: The first supporting member and the scraper assembly (300) are both arranged in the rotating cylinder (600); the rotating cylinder (600) can rotate relative to the first supporting member; the rotation axis of the rotating cylinder (600) is a first axis (A); the scraper assembly (300) can rotate relative to the first supporting member; the rotation axis of the scraper assembly (300) is a second axis (B); and a first distance exists between the first axis (A) and the second axis (B); The scraper assembly (300) comprises a scraper (330), and the rotation trajectory of the rotating cylinder (600) and the rotation trajectory of the blade of the scraper (330) have an intersection; When the inner wall of the rotating cylinder (600) has a raised deformation portion and the first distance is greater than the radial dimension of the raised deformation portion along the rotating cylinder (600), the scraper assembly (300) rotates with the rotating cylinder (600) within a first rotation stroke through the limited cooperation between the scraper (330) and the raised deformation portion in the circumferential direction; within the second rotation stroke, the scraper (330) is separated from the raised deformation portion, and the first rotation stroke and the second rotation stroke are connected in sequence in the circumferential direction of the blade rotation trajectory.

2. The rotary device according to claim 1, characterized in that: The rotating device further comprises a second supporting component (100), wherein the second supporting component (100) is arranged between the rotating cylinder (600) and the first supporting component, and the second supporting component (100) is connected to the rotating cylinder (600), and the second supporting component (100) rotates relative to the first supporting component along with the rotating cylinder (600).

3. The rotary device according to claim 2, characterized in that: The first supporting component is a supporting shaft (200), the second supporting component (100) comprises an annular portion (110), and the scraper assembly (300) comprises a sleeve portion (310), wherein: The axis of the support shaft (200) is the second axis (B), the axis of the annular portion (110) is the first axis (A), the support shaft (200) passes through the annular portion (110), and the two are rotatably matched; The sleeve portion (310) is sleeved on the surface of the support shaft (200) and is rotatably matched with the support shaft (200), and the scraper (330) is connected to the sleeve portion (310).

4. The rotary device according to claim 3, characterized in that: The second supporting component comprises at least two abutment components (120), the at least two abutment components (120) being arranged on the outer periphery of the annular portion (110) and distributed along the circumference of the annular portion (110), and each of the abutment components (120) being respectively connected to the inner wall surface of the rotating cylinder (600).

5. The rotary device according to claim 4, characterized in that: The abutment assembly (120) comprises an inserting portion (121), a sleeve portion (122) and an abutment portion (123), wherein: The sleeve portion (122) is sleeved on the outer circumference of the plug-in portion (121), and along the radial direction of the annular portion (110), the sleeve portion (122) and the plug-in portion (121) are slidably matched, and a gap is provided between the end of the sleeve portion (122) and the end of the plug-in portion (121); One of the plug-in portion (121) and the sleeve portion (122) is provided on the annular portion (110), and the other is connected to the abutment portion (123), and the abutment portion (123) is connected to the inner wall surface of the rotating cylinder (600).

6. The rotary device according to claim 3, characterized in that: The number of at least one of the second supporting member (100) and the scraper assembly (300) is at least two, and they are arranged at intervals along the axial direction of the supporting shaft (200).

7. The rotary device according to claim 3, characterized in that: The sleeve portion (310) comprises a first arc-shaped member (311) and a second arc-shaped member (312), wherein: The first arc-shaped member (311) and the second arc-shaped member (312) jointly surround the support shaft (200), and the first arc-shaped member (311) and the second arc-shaped member (312) are detachably connected, and one of the first arc-shaped member (311) and the second arc-shaped member (312) is connected to the scraper (330).

8. The rotary device according to claim 1, characterized in that: The first axis (A) and the second axis (B) are aligned along a vertical direction, and the first axis (A) and the second axis (B) are arranged in sequence along the vertical direction.

9. The rotary device according to claim 8, characterized in that: The radius of the rotation trajectory of the rotating cylinder (600) is r1, the radius of the rotation trajectory of the blade of the scraper (330) is r2, the first axis (A) and the second axis (B) are symmetrical about the symmetry plane (C), and when r1 is smaller than r2, the intersection is located on the side of the symmetry plane (C) facing the first axis (A).

10. The rotary device according to claim 8, characterized in that: The scraper assembly (300) further comprises a connecting member (320) and a counterweight (340), wherein: The first end of the connecting member (320) is connected to the first supporting member, and the second end of the connecting member (320) is connected to the scraper (330). The connecting member (320) is also provided with a mounting position, and the counterweight block (340) is detachably mounted on the mounting position.

11. The rotary device according to claim 3, characterized in that: The rotary device comprises at least one of a first friction plate (410) and a second friction plate (420), wherein: The first friction plate (410) is disposed between the annular portion (110) and the support shaft (200), and the first friction plate (410) is in contact with the inner wall surface of the annular portion (110); The second friction plate (420) is arranged between the support shaft (200) and the sleeve portion (310), and the second friction plate (420) is in contact with the sleeve portion (310) and the support shaft (200) respectively.

12. The rotary device according to claim 11, characterized in that: The first friction plate (410) is detachably disposed between the annular portion (110) and the support shaft (200), and / or the second friction plate (420) is detachably disposed between the support shaft (200) and the sleeve portion (310).

13. The rotary device according to claim 3, characterized in that: The rotating device comprises at least one of a first limiting structure (510) and a second limiting structure (520), wherein: At least one of the first limiting structure (510) and the second limiting structure (520) is arranged on the support shaft (200), and in the axial direction along the support shaft (200), the first limiting structure (510) is in limiting contact with the sleeve portion (310), and the second limiting structure (520) is in limiting contact with the annular portion (110).

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