Steam distributor structure and cut tobacco dryer
By using a tapered sleeve and fasteners in the steam distributor structure, the coaxiality of the rotary joint and the steam distributor is automatically aligned, solving the problem of circumferential runout of the rotary joint, reducing bearing wear, and improving the stability of the equipment.
Patent Information
- Application Number
- CN202520173290.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-26
AI Technical Summary
The coaxiality between the steam distributor and the rotary joint is difficult to guarantee, resulting in severe circumferential runout when the rotary joint rotates and severe bearing wear.
The steam distributor structure includes a first connecting flange, a rotary joint, connecting components, and fasteners. Through the cooperation of the tapered sleeve and the second connecting flange, the coaxiality of the rotary joint and the steam distributor is automatically adjusted, reducing the circumferential runout of the rotary joint.
By ensuring the coaxiality of the rotary joint and the steam distributor, the circumferential runout of the rotary joint is reduced, bearing wear is decreased, and the stability and service life of the equipment are improved.
Smart Images
Figure CN223816952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette technology, and in particular to a steam distributor structure and a tobacco drying machine. Background Technology
[0002] The tobacco drying machine is a key piece of equipment in the tobacco processing workshop of cigarette manufacturers. It is primarily used in the tobacco drying process to dry and shape the tobacco material. Traditional drum-type tobacco drying machines utilize steam to heat thin plates inside the drum, raising the temperature of these plates and allowing the material to come into contact with the surface of the plates (heat exchange plates) as it passes through the drum, thus achieving drying and dehydration. Steam enters the steam collection end of a rotating steam distributor through a stationary steam inlet device. The steam distributor distributes the steam to the synchronously rotating drying drum to heat and dry the tobacco.
[0003] The steam distributor structure includes a steam distributor for steam distribution and condensate recovery, and a rotary joint. The rotary joint is located between the steam inlet device and the steam distributor; one end of the rotary joint is rotatably connected to the steam inlet device, and the other end is fixedly connected to the steam distributor. When the steam distributor and the rotary joint are connected, coaxiality is difficult to guarantee, resulting in circumferential runout during the rotation of the rotary joint. This causes severe wear on the bearing located between the rotary joint and the steam inlet device.
[0004] Therefore, a steam distributor structure and a wire drying machine are needed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a steam distributor structure and a wire drying machine that can ensure the coaxiality between the steam distributor and the rotary joint, thereby reducing the circumferential runout of the rotary joint.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] The steam distributor structure includes:
[0008] A steam distributor, one end of which has a first connecting flange;
[0009] A rotary joint, the first end of which is sealed and passes through the steam distributor, and the rotary joint is coaxially arranged with the steam distributor;
[0010] A connecting assembly includes a second connecting flange and a tapered sleeve, the tapered sleeve being fitted onto the rotary joint, the second connecting flange having a mounting hole with the same taper as the tapered sleeve, the second connecting flange being able to be fitted onto the tapered sleeve so that the tapered sleeve can be tightened and clamped onto the rotary joint;
[0011] A plurality of fasteners are provided at equal intervals along the circumference of the first connecting flange, and the plurality of fasteners connect the first connecting flange and the second connecting flange.
[0012] In some embodiments, the conical sleeve has an opening, so that the conical sleeve forms two semi-conical rings.
[0013] In some embodiments, the first end of the rotary joint is provided with a mounting ring groove, and the inner ring of the tapered sleeve is located in the mounting ring groove.
[0014] In some embodiments, the steam distributor has a hollow cavity, in which a partition is provided to divide the hollow cavity into a steam collection chamber and a condensate collection chamber, and the rotary joint is connected to the steam collection chamber.
[0015] In some embodiments, the steam distributor has a positioning hole at one end that mates with the rotary joint, and a crimping ring is fitted onto the first end of the rotary joint, with the crimping ring passing through the positioning hole.
[0016] In some embodiments, a sealing gasket is provided between the crimping ring and the steam distributor.
[0017] In some embodiments, the sealing gasket is a graphite gasket.
[0018] In some embodiments, a plurality of exhaust pipes and a plurality of return water pipes are arranged at intervals along the circumference of the steam distributor. The plurality of exhaust pipes and the plurality of return water pipes are arranged in a one-to-one correspondence. The exhaust pipes are connected to the steam collection chamber, and the return water pipes are connected to the condensate collection chamber. The corresponding exhaust pipes and return water pipes are connected through a connecting pipe.
[0019] In some embodiments, the steam distributor is provided with a third connecting flange at the end away from the rotary joint.
[0020] The wire drying machine includes the steam distributor structure described above.
[0021] The beneficial effects of this utility model are:
[0022] This utility model provides a steam distributor structure. One end of the steam distributor has a first connecting flange, and the first end of a rotary joint is sealed and inserted into the steam distributor. The rotary joint and the steam distributor are arranged coaxially. The connecting assembly includes a second connecting flange and a tapered sleeve. The tapered sleeve is fitted onto the rotary joint. The second connecting flange has a mounting hole with the same taper as the tapered sleeve. The second connecting flange can fit onto the tapered sleeve, allowing the tapered sleeve to be tightened and clamped onto the rotary joint. Fasteners are used to fix the first and second connecting flanges together. During the tightening of the fasteners on the first and second connecting flanges, the tapered mounting hole of the second connecting flange, which mates with the tapered sleeve, enables automatic centering adjustment. This ensures that the rotary joint and the steam distributor are aligned while maintaining their coaxiality, thereby reducing the circumferential runout of the rotary joint and minimizing bearing wear between the rotary joint and the steam inlet device.
[0023] The present invention provides a wire drying machine, which includes the steam distributor structure described above, and can ensure the coaxiality between the steam distributor and the rotary joint, thereby reducing the circumferential runout of the rotary joint. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of a steam distributor structure according to the present invention;
[0026] Figure 2 This is a cross-sectional view of a steam distributor structure according to the present invention;
[0027] Figure 3 This is a schematic diagram of the fit between the cone sleeve and the rotary joint in a steam distributor structure according to this utility model;
[0028] Figure 4 This is a schematic diagram of the second connecting flange in a steam distributor structure according to this utility model.
[0029] In the picture:
[0030] 1. Steam distributor; 11. Baffle plate; 12. Steam collection chamber; 13. Condensate collection chamber; 14. First connecting flange; 15. Third connecting flange; 16. Exhaust pipe; 17. Return water pipe; 2. Rotary joint; 21. Crimping ring; 3. Connecting assembly; 31. Second connecting flange; 311. Mounting hole; 32. Conical sleeve; 321. Semi-conical ring; 322. Opening; 4. Steam inlet device. Detailed Implementation
[0031] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0032] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0033] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0034] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0035] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0036] In the design and manufacturing of a wire drying machine, in order to ensure the coaxiality between the steam distributor and the rotary joint, thereby reducing the circumferential runout of the rotary joint, such as... Figures 1-4 As shown, this utility model provides a steam distributor structure. The steam distributor structure includes a steam distributor 1, a rotary joint 2, a connecting assembly 3, and multiple fasteners.
[0037] The steam distributor 1 has a first connecting flange 14 at one end. A rotary joint 2 has its first end sealed within the steam distributor 1, and the rotary joint 2 is coaxially aligned with the steam distributor 1. The connecting assembly 3 includes a second connecting flange 31 and a tapered sleeve 32. The tapered sleeve 32 is fitted onto the rotary joint 2. The second connecting flange 31 has a mounting hole 311 with the same taper as the tapered sleeve 32, allowing the second connecting flange 31 to fit onto the tapered sleeve 32, thus tightening the tapered sleeve onto the rotary joint 2. Multiple fasteners are evenly spaced along the circumference of the first connecting flange 14, and these fasteners connect the first connecting flange 14 and the second connecting flange 31.
[0038] During the process of fastening the first connecting flange 14 and the second connecting flange 31, the second connecting flange 31 has a tapered mounting hole 311 that cooperates with the tapered sleeve 32, which can achieve automatic centering adjustment. This allows the rotary joint 2 to dock with the steam distributor 1 while ensuring the coaxiality of the rotary joint 2 and the steam distributor 1, thereby reducing the circumferential runout of the rotary joint 2 and reducing the bearing wear between the rotary joint 2 and the steam inlet device 4.
[0039] In some embodiments, the tapered sleeve 32 has an opening 322, forming two semi-conical rings 321. With this arrangement, when the first connecting flange 14 and the second connecting flange 31 are tightened together by multiple fasteners, the first connecting flange 14 moves along the axial direction of the rotary joint 2, thereby squeezing the tapered sleeve 32. The two semi-conical rings 321 move closer to each other, and the opening 322 narrows, thus clamping onto the rotary joint 2. During this process, the tapered sleeve 32 cooperates with the second connecting flange 31, which has a mounting hole 311 with the same taper, to achieve automatic alignment between the rotary joint 2 and the steam distributor 1, ensuring the coaxiality of the rotary joint 2 and the steam distributor 1, and eliminating or reducing the circumferential runout of the rotary joint 2.
[0040] In some embodiments, the fastener is a bolt, which passes through the first connecting flange 14 and the second connecting flange 31, with the end of the bolt protruding relative to the second connecting flange 31 and screwed onto a nut. This arrangement facilitates the mating of the first connecting flange 14 and the second connecting flange 31, thereby achieving the connection between the rotary joint 2 and the steam distributor 1.
[0041] In some embodiments, a mounting annular groove is provided at the first end of the rotary joint 2, and the inner ring of the tapered sleeve 32 is located in the mounting annular groove. By providing the mounting annular groove, the position of the tapered sleeve 32 on the rotary joint 2 can be defined, which facilitates the subsequent installation of the second connecting flange 31.
[0042] In some embodiments, the steam distributor 1 has a hollow cavity, in which a partition 11 is provided, dividing the hollow cavity into a steam collection chamber 12 and a condensate collection chamber 13. A rotary joint 2 communicates with the steam collection chamber. This configuration allows the steam distributor 1 to form the steam collection chamber 12 and the condensate collection chamber 13, enabling steam distribution and condensate recovery. The structure is simple and easy to manufacture. Furthermore, the rotary joint 2's communication with the steam collection chamber allows steam to smoothly enter the steam collection chamber from the steam inlet device 4 through the rotary joint 2.
[0043] In some embodiments, the steam distributor 1 has a positioning hole at one end that mates with the rotary joint 2, and a crimping ring 21 is fitted onto the first end of the rotary joint 2, with the crimping ring 21 passing through the positioning hole. In this embodiment, the positioning hole is a stepped hole, and the crimping ring 21 is located at the end with the larger diameter of the positioning hole. By providing a positioning hole that mates with the crimping ring 21, it is convenient to position and install the rotary joint 2.
[0044] In some embodiments, a sealing gasket is provided between the crimping ring 21 and the steam distributor 1. By providing the sealing gasket, the gap between the crimping ring 21 and the steam distributor 1 can be effectively sealed, thereby preventing steam from leaking through the gap between the crimping ring 21 and the steam distributor 1.
[0045] In some embodiments, the sealing gasket is a graphite gasket. Graphite gaskets are suitable for sealing equipment under high temperature, high pressure and highly corrosive media. Graphite gaskets have self-lubricating properties, can be used stably for a long time under harsh operating conditions, and are corrosion-resistant, non-aging, and non-brittle, effectively meeting the sealing requirements between the crimp ring 21 and the steam distributor 1.
[0046] In some embodiments, multiple exhaust pipes 16 and multiple return water pipes 17 are spaced apart along the circumference of the steam distributor 1. Each exhaust pipe 16 corresponds to one return water pipe 17. The exhaust pipes 16 communicate with the steam collection chamber, and the return water pipes 17 communicate with the condensate collection chamber 13. Corresponding exhaust pipes 16 and return water pipes 17 are connected via connecting pipes. Specifically, steam enters the connecting pipe through the exhaust pipe 16. The connecting pipe is fixedly connected to a thin plate inside the drying cylinder. Through heat exchange, the thin plate inside the cylinder is heated, allowing the material to contact the surface of the thin plate (heat exchange plate) as it passes through the cylinder, achieving drying and dehydration. The steam in the connecting pipe cools and liquefies into condensate, which enters the condensate collection chamber 13 through the return water pipe 17 and is then discharged through the central drain pipe passing through the steam distributor 1 and the rotary joint 2. This arrangement effectively achieves steam distribution, wire drying, and condensate recovery, and the structure is simple and easy to manufacture.
[0047] In some embodiments, a third connecting flange 15 is fixedly provided at the end of the steam distributor 1 away from the rotary joint 2. By providing the third connecting flange 15, it can be connected to a rotary drive device, thereby realizing the rotation of the steam distributor 1.
[0048] This embodiment also provides a wire drying machine, including the steam distributor structure as described above, which can ensure the coaxiality between the steam distributor 1 and the rotary joint 2, thereby reducing the circumferential runout of the rotary joint 2.
[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A steam distributor structure, characterized in that, include: A steam distributor (1), one end of which has a first connecting flange (14); Rotary joint (2), the first end of which is sealed and inserted into the steam distributor (1), and the rotary joint (2) is coaxially arranged with the steam distributor (1); The connecting assembly (3) includes a second connecting flange (31) and a tapered sleeve (32), the tapered sleeve (32) being fitted onto the rotary joint (2), the second connecting flange (31) having a mounting hole (311) with the same taper as the tapered sleeve (32), the second connecting flange (31) being able to be fitted onto the tapered sleeve (32), so that the tapered sleeve (32) can be tightened and clamped onto the rotary joint (2); Multiple fasteners are provided at equal intervals along the circumference of the first connecting flange (14), and the multiple fasteners connect the first connecting flange (14) and the second connecting flange (31).
2. The steam distributor structure according to claim 1, characterized in that, The cone sleeve (32) has an opening (322) so that the cone sleeve (32) forms two semi-conical rings (321).
3. The steam distributor structure according to claim 1, characterized in that, The first end of the rotary joint (2) is provided with an installation ring groove, and the inner ring of the tapered sleeve (32) is located in the installation ring groove.
4. The steam distributor structure according to claim 1, characterized in that, The steam distributor (1) has a hollow cavity, in which a partition (11) is provided, the partition (11) dividing the hollow cavity into a steam collection chamber (12) and a condensate collection chamber (13), and the rotary joint (2) is connected to the steam collection chamber (12).
5. The steam distributor structure according to claim 4, characterized in that, The steam distributor (1) has a positioning hole at one end that mates with the rotary joint (2), and a crimping ring (21) is fitted onto the first end of the rotary joint (2), with the crimping ring (21) passing through the positioning hole.
6. The steam distributor structure according to claim 5, characterized in that, A sealing gasket is provided between the crimping ring (21) and the steam distributor (1).
7. The steam distributor structure according to claim 6, characterized in that, The sealing gasket is a graphite gasket.
8. The steam distributor structure according to claim 4, characterized in that, Multiple exhaust pipes (16) and multiple return water pipes (17) are spaced apart along the circumference of the steam distributor (1). The multiple exhaust pipes (16) and multiple return water pipes (17) are arranged one-to-one. The exhaust pipes (16) are connected to the steam collection chamber, and the return water pipes (17) are connected to the condensate collection chamber (13). The corresponding exhaust pipes (16) and return water pipes (17) are connected through a connecting pipe.
9. The steam distributor structure according to claim 1, characterized in that, The steam distributor (1) is provided with a third connecting flange (15) at the end away from the rotary joint (2).
10. A filament drying machine, characterized in that, Includes the steam distributor structure as described in any one of claims 1-9.