Rotating pipe assembly and glass kiln
By setting up support rib plates and slots in the rotary tube assembly and filling them with high-temperature resistant materials, the problem of the expansion of the rotary tube and the central rotary shaft is solved, and the forming quality and pass rate of the glass tube are improved.
Patent Information
- Application Number
- CN202420078039.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-11
AI Technical Summary
The expansion of existing rotary tubes at high temperatures is not synchronized, resulting in axial misalignment, affecting the forming quality of the glass tubes, resulting in deviations in outer diameter and wall thickness, and a decrease in the pass rate.
Design a rotating tube assembly, with support rib plates installed on the inner wall of the rotating tube, and support slots are installed on the outer side of the central rotating shaft. Supporting rib plates are inserted into the card slots to form a filling space and fill the space with high-temperature-resistant filler to ensure the rotating tube and the center The shaft expands synchronously.
Through synchronous expansion, the axis of the rotating tube is consistent with the central rotation shaft, avoid deformation of the motion trajectory, and improve the forming quality and pass rate of the glass tube.
Smart Images
Figure CN222312986U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of glass production, and in particular to a rotary tube assembly and a glass kiln. Background Art
[0002] At present, my country's pharmaceutical glass industry, electric vacuum glass industry and chemical glass industry generally use the Danner method to draw glass tubes horizontally. The glass liquid flows out of the working pool of the kiln through the material channel and falls on the rotating tube of the refractory material. The rotating tube is installed on the head at a certain angle, and the rotating tube sleeve is set on the outside of the central shaft. The central shaft drives the rotating tube to rotate, and air is continuously fed into the central through hole of the central shaft. Under the continuous rotation, the glass liquid flows from the upper end to the lower end to form a tube root, and the tube root is drawn into a glass tube. The glass tube is cooled, hardened and annealed by a graphite roller and then introduced into the tube drawing machine. The tube drawing machine clamps the glass tube to continuously draw it out, and it is cut off by a certain length by the tube cutting machine. In order to ensure the stability of the forming temperature, the rotating tube is enclosed in a muffle furnace and heated by a flame.
[0003] The existing rotating tube sleeve is arranged outside the central rotating shaft, and one end of the central rotating shaft is connected with an end head, which is fastened by the clamping force of the end head arranged at the front of the rotating tube and the rear pressing cake, so that the rotating tube is installed on the central rotating shaft.
[0004] The existing rotating tube is used under long-term load at a high temperature of 1000℃, and both the rotating tube and the central shaft will expand at high temperature. Since the rotating tube is set on the outside of the central shaft, the expansion of the rotating tube and the central shaft is not synchronized, which causes the rotating tube and the end to move dislocated, causing the axis of the rotating tube and the central shaft to be not on the same straight line, and the motion trajectory of the formed rotating tube changes from a circle to an ellipse. Affected by this, the viscous glass flowing out of the front of the formed rotating tube moves up and down, resulting in large deviation defects in the outer diameter and wall thickness of the glass tube, and the qualified rate decreases. When the deviation is large, it is even necessary to stop production and reinstall the rotating tube. Utility Model Content
[0005] A technical problem to be solved by the present disclosure is to make the central shaft and the rotating tube expand synchronously as much as possible, so that the axes of the rotating tube and the central shaft are kept on the same straight line, avoiding the problem of a decrease in the qualified rate of the glass tube due to deformation of the movement trajectory of the rotating tube.
[0006] In order to solve the above technical problems, the present disclosure provides a rotating tube assembly, including:
[0007] A rotating tube, wherein a plurality of supporting ribs are arranged on the inner wall of the rotating tube;
[0008] A central rotating shaft, wherein a plurality of supporting slots are arranged outside the central rotating shaft, and a plurality of supporting ribs are inserted into the plurality of supporting slots;
[0009] A filling space is formed between the central rotating shaft and the rotating tube.
[0010] In some embodiments, a high temperature resistant filler is disposed in the filling space. The high temperature resistant filler includes a plurality of high temperature resistant filling balls and a high temperature resistant filling powder. The high temperature resistant filling powder is filled in the gaps between the plurality of high temperature resistant filling balls.
[0011] In some embodiments, the support slot is a long strip-shaped slot structure extending axially along the central shaft, and a plurality of support slots are evenly spaced and distributed on the outer side of the central shaft along the circumference of the central shaft;
[0012] A plurality of supporting ribs are evenly spaced on the inner wall of the rotating tube along the circumferential direction of the rotating tube, and the plurality of supporting ribs extend along the axial direction of the rotating tube.
[0013] In some embodiments, the support slot is the same length as the support rib, and the length of the support rib is the same length as the inner wall of the rotating tube.
[0014] In some embodiments, the support slot is an annular groove structure arranged along the circumference of the central shaft, and a plurality of support slots are evenly spaced and distributed on the outer side of the central shaft along the axial direction of the central shaft;
[0015] A plurality of supporting ribs are evenly spaced apart on the inner wall of the rotating tube along the axial direction of the rotating tube, and a plurality of supporting ribs are arranged along the circumferential direction of the rotating tube.
[0016] In some embodiments, the inner wall of the first end of the rotating tube is provided with a support ring;
[0017] The first end of the central shaft is provided with an annular boss, which is matched with the supporting ring.
[0018] In some embodiments, the first end of the rotating tube is recessed toward the second end of the rotating tube to form a tapered tube, and the support ring is arranged on one side of the tapered tube close to the second end of the rotating tube. The side wall of the annular boss is a tapered surface, and the tapered surface matches the inner wall of the tapered tube.
[0019] In some embodiments, a first sealing cover plate is further included, and the first sealing cover plate is arranged on a side of the annular boss away from the central rotation axis.
[0020] In some embodiments, a second sealing cover plate is provided at the second end of the rotating tube, and the second sealing cover plate is sleeved on the outside of the central rotating shaft. A fastening nut is provided on the side of the second sealing cover plate away from the rotating tube, and the fastening nut is threadedly connected to the central rotating shaft. An elastic member is connected between the fastening nut and the second sealing cover plate.
[0021] The disclosed embodiment also provides a glass furnace, comprising the above-mentioned rotating tube assembly.
[0022] Through the above technical scheme, a plurality of supporting ribs are arranged on the inner wall of the rotating tube provided by the present invention; a plurality of supporting slots are arranged on the outer side of the central rotating shaft, and a plurality of supporting ribs are inserted into the plurality of supporting slots; on the one hand, the central rotating shaft and the supporting slots are connected by the supporting ribs, so that the rotating tube can rotate coaxially with the central rotating shaft; on the other hand, the central rotating shaft hard supports most of the positions of the rotating tube through the plurality of supporting ribs, and a filling space is formed between the central rotating shaft and the rotating tube. When the rotating tube expands, the supporting ribs are driven to deform and tend to move in a direction away from the central rotating shaft, thereby giving the central rotating shaft space to expand, so that the central rotating shaft and the rotating tube expand as synchronously as possible, so that the axes of the rotating tube and the central rotating shaft are kept on the same straight line, avoiding the problem of a decrease in the qualified rate of the glass tube due to the deformation of the movement trajectory of the rotating tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 is a structural schematic diagram of a rotating tube assembly disclosed in an embodiment of the present disclosure;
[0025] Figure 2 is a schematic cross-sectional structural diagram of a rotating tube assembly disclosed in an embodiment of the present disclosure;
[0026] Figure 3 is a structural schematic diagram of a rotating tube of a rotating tube assembly disclosed in an embodiment of the present disclosure;
[0027] Figure 4 It is a schematic structural diagram of a central rotating shaft of a rotating tube assembly disclosed in an embodiment of the present disclosure.
[0028] Description of reference numerals:
[0029] 1. Rotating tube; 2. Support rib plate; 3. Central rotating shaft; 4. Support slot; 5. Filling space; 6. Support ring; 7. Annular boss; 8. Conical tube; 9. First sealing cover plate; 10. Second sealing cover plate; 11. Fastening nut; 12. Elastic member; 13. Blade; 14. Central through hole. DETAILED DESCRIPTION
[0030] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
[0031] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0032] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0033] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0034] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0035] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0037] The rotating tube in the prior art is used under long-term load at a high temperature of 1000°C, and both the rotating tube and the central shaft will expand at high temperatures. Since the rotating tube is sleeved on the outside of the central shaft, the expansion of the rotating tube and the central shaft is not synchronized, which causes the rotating tube and the end to move out of alignment, causing the axes of the rotating tube and the central shaft to be not on the same straight line, and the motion trajectory of the formed rotating tube to change from a circle to an ellipse. As a result, the viscous glass flowing out of the front of the formed rotating tube moves up and down, resulting in large deviation defects in the outer diameter and wall thickness of the glass tube, and a decrease in the qualified rate. When the deviation is large, it is even necessary to stop production and reinstall the rotating tube.
[0038] In order to solve the above technical problems, the embodiments of the present disclosure provide a rotating tube assembly and a glass kiln, so that the central shaft and the rotating tube can expand synchronously as much as possible, so that the axes of the rotating tube and the central shaft are kept in the same straight line, avoiding the problem of a decrease in the qualified rate of the glass tube due to deformation of the motion trajectory of the rotating tube.
[0039] Example 1
[0040] like Figure 1 , Figure 2 As shown, an embodiment of the present disclosure provides a rotating tube 1 assembly, including a rotating tube 1 and a central rotating shaft 3, wherein a plurality of supporting ribs 2 are arranged on the inner wall of the rotating tube 1; a plurality of supporting slots 4 are arranged on the outer side of the central rotating shaft 3, and the plurality of supporting ribs 2 are inserted into the plurality of supporting slots 4; wherein a filling space 5 is formed between the central rotating shaft 3 and the rotating tube 1.
[0041] The rotating tube 1 is a hollow tube structure used in the process of drawing glass tubes by Dana method; the rotating tube 1 can be made of refractory materials such as corundum and zirconium corundum, but the rotating tube 1 made of the above refractory materials has the disadvantages of short service life, poor thermal shock resistance, looseness and porosity, easy to fall off stones, and frequent replacement; in order to further solve the above problems, the rotating tube 1 can be made of platinum material. In addition to the disadvantages of high price and high one-time investment, platinum has the advantages of corrosion resistance, easy processing, long service life, and no impurities falling off. As long as the rotating tube 1 can drain the glass liquid and form a glass tube in the process of drawing glass tubes horizontally by Dana method, the structure and material of the rotating tube 1 are not specifically limited.
[0042] The central rotating shaft 3 is a rotating shaft with an axial central through hole 14 at the center. Air is continuously introduced through the central through hole 14 of the central rotating shaft 3 so as to blow air during the glass tube forming process, which facilitates the glass tube forming. The rotating shaft can be made of high temperature resistant mold steel or platinum, and there is no specific limitation on the material of the rotating shaft. Specifically, the central rotating shaft 3 can be divided into a first shaft section and a second shaft section, the diameter of the second shaft section is larger than the first shaft section, and the support card slot 4 is set on the second shaft section, and the depth of the slot can be the radius difference between the second shaft section and the first shaft section to avoid the slot affecting the overall strength of the central rotating shaft 3.
[0043] The support rib 2 is a plate-like structure used to support the rotating tube 1 on the rotating shaft. The support rib 2 can be a long plate-like structure extending axially along the rotating tube 1, or a ring-shaped plate or semi-ring-shaped structure arranged circumferentially along the rotating tube 1. It can also include both a long plate-like structure and a ring-shaped plate-like structure. As long as the central rotating shaft 3 can provide hard support to most positions of the rotating tube 1, the structure and material of the support rib 2 are not specifically limited.
[0044] The support slot 4 is a groove structure for clamping with the support rib 2. The support rib 2 can be a long groove structure arranged along the axial direction of the rotating tube 1, or it can be an annular or semi-annular groove structure arranged along the circumference of the rotating tube 1. It can also include a long groove structure and an annular plate structure. As long as the support slot 4 can be clamped with the support rib 2 and the central shaft 3 can drive the rotating tube 1 to rotate, the structure of the support slot 4 is not specifically limited.
[0045] The filling space 5 is a space provided between the rotating tube 1 and the central shaft 3 except for the supporting rib 2. The filling space 5 can be filled with fillers to provide soft support for the rotating tube 1, thereby further ensuring the synchronous expansion of the rotating tube 1 and the central shaft 3. Alternatively, no fillers may be provided to provide space for the central shaft 3 to expand.
[0046] Through the above technical scheme, a plurality of supporting ribs 2 are arranged on the inner wall of the rotating tube 1 provided by the present invention; a plurality of supporting slots 4 are arranged on the outer side of the central rotating shaft 3, and a plurality of supporting ribs 2 are inserted into the plurality of supporting slots 4; on the one hand, the central rotating shaft 3 and the supporting slots 4 are connected by the supporting ribs 2, so that the rotating tube 1 can rotate coaxially with the central rotating shaft 3; on the other hand, the central rotating shaft 3 hard supports most of the positions of the rotating tube 1 through the plurality of supporting ribs 2, and a filling space 5 is formed between the central rotating shaft 3 and the rotating tube 1. When the rotating tube 1 expands, the supporting ribs 2 are driven to deform and tend to move in a direction away from the central rotating shaft 3, thereby giving the central rotating shaft 3 space to expand, so that the central rotating shaft 3 and the rotating tube 1 expand as synchronously as possible, so that the axes of the rotating tube 1 and the central rotating shaft 3 are kept on the same straight line, avoiding the problem of a decrease in the qualified rate of the glass tube caused by the deformation of the motion trajectory of the rotating tube 1.
[0047] In some embodiments, a high temperature resistant filler is disposed in the filling space 5 . The high temperature resistant filler includes a plurality of high temperature resistant filling balls and a high temperature resistant filling powder. The high temperature resistant filler is filled in the gaps between the plurality of high temperature resistant filling balls.
[0048] The high temperature resistant filler refers to a solid with stable physical and chemical properties at high temperatures, such as alumina, gold, etc. As long as the physical and chemical properties are stable at a high temperature of 1000°C, the specific material of the high temperature resistant filler is not further limited. Specifically, the high temperature resistant filling ball can be an alumina ceramic ball with a diameter of 0.5-1mm, and the high temperature resistant filling powder can be alumina powder from which impurities have been removed. During the filling process, a rubber hammer can be used to gently tap the outer wall of the rotating tube 1 to ensure that the filling space 5 is filled.
[0049] By filling the filling space 5 with a combination of high temperature resistant filling balls and high temperature resistant filling powder, on the one hand, the central shaft 3 provides soft support for the rotating tube 1, which cooperates with the hard support of the supporting ribs 2 to ensure that the central shaft 3 supports the inner wall of the rotating tube 1, so that the central shaft 3 and the rotating tube 1 have a tendency to expand synchronously as much as possible; on the other hand, the high temperature resistant filler includes a plurality of high temperature resistant filling balls and high temperature resistant filling powder, and the high temperature resistant filling powder is filled in the gaps between the plurality of high temperature resistant filling balls, so that the central shaft 3 can squeeze the high temperature resistant filling balls to move during the expansion process, while ensuring that the central shaft 3 provides soft support for the rotating tube 1, it also provides space for the central shaft 3 to expand, so that the central shaft 3 and the rotating tube 1 can expand synchronously, so that the axes of the rotating tube 1 and the central shaft 3 remain on the same straight line, avoiding the problem of a decrease in the qualified rate of the glass tube due to deformation of the movement trajectory of the rotating tube 1.
[0050] like Figure 3As shown, in some embodiments, the support slot 4 is a long groove-like structure extending axially along the central shaft 3, and multiple support slots 4 are evenly distributed on the outer side of the central shaft 3 along the circumference of the central shaft 3; multiple support ribs 2 are evenly spaced along the circumference of the rotating tube 1 on the inner wall of the rotating tube 1, and multiple support ribs 2 extend axially along the rotating tube 1.
[0051] The support slot 4 is set to a long strip slot-like structure extending axially along the central shaft 3, that is, the support rib 2 matched with the support slot 4 is a long strip plate-like structure; firstly, it is convenient to install, just insert the rotating tube 1 into the central shaft 3 from one end of the central shaft 3; secondly, the rotation direction of the central shaft 3 is perpendicular to the extension direction of the support slot 4, which is convenient for the support rib 2 to drive the rotating tube 1 to rotate; finally, after the support rib 2 is set to a long strip plate-like structure, the end of the rotating tube 1 is connected to the filling space 5, which is convenient for filling the rotating tube 1 with high temperature resistant filler.
[0052] A plurality of support slots 4 are evenly spaced along the circumference of the central shaft 3 on the outside of the central shaft 3; a plurality of support ribs 2 are evenly spaced along the circumference of the rotating tube 1 on the inner wall of the rotating tube 1, so that the central shaft 3 evenly supports the rotating tube 1, thereby further ensuring that the central shaft 3 and the rotating tube 1 can expand synchronously.
[0053] In some embodiments, the length of the support slot 4 is the same as that of the support rib 2, and the length of the support rib 2 is the same as that of the inner wall of the rotating tube 1. That is, the lengths of the support slot 4, the support rib 2, and the inner wall of the rotating tube 1 are all the same, so that the support rib 2 can support the rotating tube 1 in the axial direction of the rotating tube 1, further ensuring that the central shaft 3 and the rotating tube 1 can expand synchronously.
[0054] In some embodiments, the support slot 4 is an annular groove structure arranged along the circumference of the central rotating shaft 3, and multiple support slots 4 are evenly distributed on the outer side of the central rotating shaft 3 along the axial direction of the central rotating shaft 3; multiple support ribs 2 are evenly arranged on the inner wall of the rotating tube 1 along the axial direction of the rotating tube 1, and multiple support ribs 2 are arranged along the circumference of the rotating tube 1.
[0055] The support slot 4 is an annular groove structure arranged along the circumference of the central shaft 3, that is, the support rib plate 2 is an annular groove structure, which can support the entire circumference of the interior of the rotating tube 1 through multiple annular rib plates evenly arranged in the axial direction, thereby ensuring the uniformity of the support, and then ensuring that the central shaft 3 and the rotating tube 1 can expand synchronously.
[0056] like Figure 4As shown, in some embodiments, a support ring 6 is provided on the inner wall of the first end of the rotating tube 1; an annular boss 7 is provided on the first end of the central rotating shaft 3, and the annular boss 7 is adapted to the support ring 6. The support ring 6 is a circular ring structure, and a through hole is provided at the center thereof for clearance fit with the central rotating shaft 3; the annular boss 7 is an annular structure protruding from the end of the central rotating shaft 3, and the annular boss 7 cooperates with the support ring 6 to block the other end of the rotating tube 1, thereby preventing the high temperature resistant filler from leaking out from the other end of the rotating tube 1.
[0057] In some embodiments, the first end of the rotating tube 1 is recessed toward the second end of the rotating tube 1 to form a tapered tube 8, the support ring 6 is disposed on one side of the tapered tube 8 close to the second end of the rotating tube 1, and the side wall of the annular boss 7 is a tapered surface, which matches the inner wall of the tapered tube 8. The sealing effect can be further improved by providing tapered surfaces of the side walls of the tapered tube 8 and the annular boss 7, and at this time, the side wall of the annular boss 7 matches the tapered surface, thereby further improving the sealing performance.
[0058] In some embodiments, a first sealing cover plate 9 is further included. The first sealing cover plate 9 is arranged on a side of the annular boss 7 away from the central shaft 3. The end of the rotating tube 1 is further sealed by the first sealing cover plate 9, thereby improving the sealing performance of the first end of the rotating tube 1.
[0059] In some embodiments, a second sealing cover plate 10 is provided at the second end of the rotating tube 1, and the second sealing cover plate 10 is sleeved on the outside of the central rotating shaft 3. A fastening nut 11 is provided on the side of the second sealing cover plate 10 away from the rotating tube 1. The fastening nut 11 is threadedly connected to the central rotating shaft 3, and an elastic member 12 is connected between the fastening nut 11 and the second sealing cover plate 10.
[0060] Specifically, the first sealing cover plate 9 and the second sealing cover plate 10 can be made of high-temperature resistant metal, ceramic and other materials, and the elastic member 12 is an elastic structure that can automatically reset. More specifically, the elastic member 12 can be a spring or a high-toughness elastic plate. As long as the elastic member 12 can automatically reset in the axial direction, there is no specific limitation on the type and structure of the elastic member 12. On the one hand, the second sealing cover plate 10 can be sealed by tightening the fastening nut 11; on the other hand, an elastic member 12 is connected between the fastening nut 11 and the second sealing cover plate 10, and the rotating tube 1 can expand axially when it expands due to heat, which ensures the sealing of the second end of the rotating tube 1 while providing space for the axial expansion of the rotating tube 1 to prevent the rotating tube 1 from exploding.
[0061] In some embodiments, the end of the first end of the rotating tube 1 is also provided with an inwardly recessed blade 13 to shield the end of the first end of the rotating tube 1 and prevent the first sealing cover plate from falling off. The rotating tube 1 is made of reinforced platinum with a thickness of 0.8-1.2 mm, and the external blades 13 can be made of reinforced platinum with a thickness of 2-3 mm. The reinforced platinum can be stably operated in a high temperature environment above 1600 degrees, and can resist glass erosion during use, which can greatly increase the service life of the rotating tube 1. The support groove is made of 1-1.5 mm reinforced platinum. The support groove can be symmetrically designed according to the situation, and the internal number can be 3, 4, 6, or 8, which is determined according to the specific usage.
[0062] When the rotating tube 1 is installed, it can be entered from the end with a smaller diameter of the support shaft, such as Figure 1 The structure is installed, and then the first sealing cover plate 9 is installed. The first sealing cover plate 9 is tightly installed between the rotating tube 1 and the central shaft 3. After installation, there are a lot of gaps between the rotating tube 15 and the supporting main shaft 1, which are filled with alumina ceramic balls with a diameter of 0.5-1mm and alumina powder from which impurities have been removed. During the filling process, use a rubber hammer to tap gently to ensure that the filling space 5 is filled. The high-temperature resistant filler is flush with the rotating tube 1. Then use kaolin clay to seal the top, and then use the second sealing cover plate 10 to seal.
[0063] Example 2
[0064] The disclosed embodiment also provides a glass kiln, comprising the above-mentioned rotating tube 1 assembly, and the rotating tube 1 assembly is installed in the glass kiln.
[0065] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0066] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A rotating tube assembly, characterized in that: include: A rotating tube (1), wherein a plurality of supporting ribs (2) are arranged on the inner wall of the rotating tube (1); A central rotating shaft (3), wherein a plurality of supporting slots (4) are arranged on the outer side of the central rotating shaft (3), and the plurality of supporting ribs (2) are inserted into the plurality of supporting slots (4); A filling space (5) is formed between the central rotating shaft (3) and the rotating tube (1).
2. A rotating tube assembly according to claim 1, characterized in that: A high temperature resistant filler is arranged in the filling space (5), and the high temperature resistant filler comprises a plurality of high temperature resistant filling balls and a high temperature resistant filling powder, and the high temperature resistant filling powder is filled in the gaps between the plurality of high temperature resistant filling balls.
3. A rotating tube assembly according to any one of claims 1 or 2, characterized in that: The support slot (4) is a long strip slot-shaped structure extending axially along the central rotating shaft (3), and a plurality of the support slots (4) are evenly spaced and distributed on the outer side of the central rotating shaft (3) along the circumference of the central rotating shaft (3); The plurality of supporting ribs (2) are arranged on the inner wall of the rotating tube (1) at uniform intervals along the circumference of the rotating tube (1), and the plurality of supporting ribs (2) extend along the axial direction of the rotating tube (1).
4. A rotating tube assembly according to claim 3, characterized in that: The support slot (4) is the same length as the support rib plate (2), and the support rib plate (2) is the same length as the inner wall length of the rotating tube (1).
5. A rotating tube assembly according to claim 3, characterized in that: The support groove (4) is an annular groove structure arranged along the circumference of the central rotating shaft (3), and a plurality of the support grooves (4) are evenly spaced and distributed on the outer side of the central rotating shaft (3) along the axial direction of the central rotating shaft (3); The plurality of support ribs (2) are arranged on the inner wall of the rotating tube (1) at uniform intervals along the axial direction of the rotating tube (1), and the plurality of support ribs (2) are arranged along the circumference of the rotating tube (1).
6. A rotating tube assembly according to claim 1 or 2, characterized in that: The inner wall of the first end of the rotating tube (1) is provided with a supporting ring (6); The first end portion of the central rotating shaft (3) is provided with an annular boss (7), and the annular boss (7) is adapted to the supporting ring (6).
7. A rotating tube assembly according to claim 6, characterized in that: The first end of the rotating tube (1) is recessed toward the second end of the rotating tube (1) to form a tapered tube (8); the support ring (6) is arranged on a side of the tapered tube (8) close to the second end of the rotating tube (1); the side wall of the annular boss (7) is a tapered surface, and the tapered surface matches the inner wall of the tapered tube (8).
8. A rotating tube assembly according to claim 7, characterized in that: Also includes: A first sealing cover plate (9), wherein the first sealing cover plate (9) is arranged on a side of the annular boss (7) away from the central rotating shaft (3).
9. A rotating tube assembly according to claim 3, characterized in that: A second sealing cover plate (10) is provided at the second end of the rotating tube (1), the second sealing cover plate (10) being sleeved on the outer side of the central rotating shaft (3), a fastening nut (11) is provided on the side of the second sealing cover plate (10) away from the rotating tube (1), the fastening nut (11) being threadedly connected to the central rotating shaft (3), and an elastic member (12) is connected between the fastening nut (11) and the second sealing cover plate (10).
10. A glass furnace, characterized in that: The invention comprises a rotating tube assembly as described in any one of claims 1 to 9.