Split type steam distributor and counterbalancing method thereof

Abstract

The present application belongs to the technical field of cigarette production, and discloses a split type steam distributor and a counterweight method thereof. The split type steam distributor comprises a counterweight device, a detection piece, and a steam distributor main body, a rotary joint and a steam inlet device coaxially arranged. The counterweight device comprises a counterweight seat and a counterweight assembly. The outer peripheral wall of the steam distributor main body is provided with a counterweight groove. The counterweight seat is installed in the counterweight groove. The counterweight assembly comprises a plurality of counterweight pieces. The plurality of counterweight pieces have different weights. The plurality of counterweight pieces can be detachably connected to the counterweight seat in different combinations. The detection piece is used for detecting the circumferential circle runout of the rotary joint. The steam distributor and the counterweight method of the steam distributor can reduce the circumferential circle runout of the rotary joint caused by the mass imbalance between the steam distributor and the rotary joint, and reduce the bearing wear between the rotary joint and the steam inlet device.

Description

Technical Field

[0001] This invention relates to the field of cigarette production technology, and in particular to a split-type steam distributor and its counterweight method. Background Technology

[0002] The tobacco drying machine in the tobacco processing workshop of a cigarette manufacturing enterprise is a key core production equipment. Traditional drum-type drying machines utilize steam to heat thin plates inside the drum, raising the temperature of these plates and allowing the tobacco 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. The steam distributor includes a steam distributor for steam distribution and condensate recovery, as well as 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 of the rotary joint during rotation, causing severe wear on the bearing located between the rotary joint and the steam inlet device.

[0003] To address this, a steam distributor in related technology (patent publication number CN114012036A) uses a connecting flange and a tapered sleeve between a rotary joint and the steam distributor. The connecting flange has mounting holes with the same taper as the tapered sleeve. The tapered sleeve's automatic centering structure reduces the circumferential runout of the rotary joint, ensuring coaxiality between the steam distributor and the rotary joint. However, the steam distributor in this related technology only solves the geometric centering problem. Manufacturing tolerances and time-varying condensate distribution mean that mass eccentricity exists between the rotary joint and the steam distributor. If this mass eccentricity cannot be fully compensated, the coaxiality between the steam distributor and the rotary joint will still be affected by the mass centering problem. This leads to circumferential runout of the rotary joint due to mass imbalance, resulting in severe wear of the bearing located between the rotary joint and the steam inlet device. Summary of the Invention

[0004] The purpose of this invention is to provide a split-type steam distributor and its counterweight method, which can reduce the circumferential runout of the rotary joint caused by the mass imbalance between the steam distributor and the rotary joint, and reduce the bearing wear between the rotary joint and the steam inlet device.

[0005] To achieve this objective, the present invention adopts the following technical solution: On one hand, a split-type steam distributor is provided, including a counterweight device, a detection element, and a steam distributor body, a rotary joint, and a steam inlet device arranged coaxially. One end of the rotary joint is detachably connected to the steam distributor body, and the other end of the rotary joint is rotatably connected to the steam inlet device through a bearing. The counterweight device includes a counterweight base and a counterweight assembly. A counterweight groove is provided on the outer peripheral wall of the steam distributor body, and the counterweight base is installed in the counterweight groove. The counterweight assembly includes multiple counterweights with different weights, and the multiple counterweights can be detachably connected to the counterweight base in different combinations. The detection element is used to detect the circumferential runout of the rotary joint.

[0006] Preferably, the counterweight device further includes a disassembly and assembly assembly, which includes a mounting block disposed on one of the counterweight base and the counterweight component, and a mounting groove disposed on the other of the counterweight base and the counterweight component. Both ends of the mounting groove are provided with slots, and both slots are connected to the mounting groove. Both ends of the mounting block are provided with limit blocks. The mounting block is inserted into the mounting groove along a first direction, and the limit blocks slide with the mounting block along a second direction. The two limit blocks are inserted into the two slots one-to-one along the second direction. The first direction and the second direction form an angle, and the groove wall of the slot can prevent the limit blocks from separating from the counterweight base along the first direction.

[0007] Preferably, the limiting block has an insertion position for engaging with a slot and a separation position for disengaging from the slot, and the disassembly assembly further includes a first elastic element configured to cause the limiting block to always tend to move toward the insertion position.

[0008] Preferably, the assembly also includes an unlocking component, which can selectively drive the limit block to a separation position when the limit block is inserted into the slot.

[0009] Preferably, the counterweight base includes a first clamp and a second clamp, which are detachably connected. The first clamp and the second clamp are installed in the counterweight groove and can hold the steam distributor body tightly.

[0010] Preferably, the inner wall of the counterweight groove has a frosted layer.

[0011] Preferably, the inner walls of both the first clamp and the second clamp are provided with anti-slip rubber pads.

[0012] Preferably, one end of the first clamp is hinged to the first end of the second clamp, and the other end of the first clamp is provided with a fixing block with a connecting hole. The second end of the second clamp is provided with a fixing groove, and the groove wall of the fixing groove is provided with a slot hole communicating with the fixing groove. The fixing block can be inserted into the fixing groove. The counterweight seat also includes a plug, a hand-tightening bolt, and a second elastic element. The hand-tightening bolt includes an operating part and a screw part. The second elastic element is located in the slot hole and is sleeved on the screw part. The screw part is screwed to the end of the slot hole away from the fixing groove. The plug can close the end of the slot hole communicating with the fixing groove, and at least a part of the plug passes through the connecting hole. The end of the screw part away from the operating part selectively abuts against the plug.

[0013] Preferably, the split-type steam distributor also includes a filtration device, which includes an air inlet main pipe and two filter components. The air inlet main pipe includes an air inlet, an air outlet, and two filter pipes. The input ends of the two filter pipes are connected to the air inlet, and the output ends of the two filter pipes are connected to the air outlet. The air inlet is used to connect to an external air source, and the air outlet is connected to a steam inlet device. The two filter components are correspondingly arranged on the two filter pipes. The filter components include a filter box, a filter screen, a first valve, and a second valve. The first end of the filter box is connected or disconnected to the end of the corresponding filter pipe near the air inlet through the first valve, and the second end of the filter box is connected or disconnected to the end of the corresponding filter pipe near the air outlet through the second valve. The filter box includes a box body and a baffle. The box body includes a receiving space and an opening communicating with the receiving space. The filter screen is detachably installed in the receiving space, and the baffle is used to open or close the opening.

[0014] Preferably, the main intake pipe has a first flange at one end with an outlet, and a branch pipe connected to the steam intake device is provided on the outer peripheral wall of the steam intake device. A second flange is provided at the end of the branch pipe away from the steam intake device. The first flange and the second flange are fitted together and detachably connected by bolts. The split-type steam distributor also includes a protective component, which includes a first protective member, a second protective member, and two magnetic blocks. Both the first and second protective members are semi-circular ring structures. The first and second protective members can surround and hug the outer peripheral surfaces of the first and second flanges. Both ends of the first protective member are provided with rectangular grooves, and rectangular holes are opened on the groove walls. Both ends of the second protective member are provided with rectangular blocks, and the rectangular blocks are provided with grooves corresponding to the rectangular holes. The two rectangular blocks are inserted into the two rectangular grooves one by one, and the two magnetic blocks pass through the two rectangular holes one by one and are inserted into the two grooves.

[0015] On the other hand, a counterweight method for a split-type steam distributor is provided, applicable to a split-type steam distributor as described in any of the above technical solutions. The counterweight method for the split-type steam distributor includes: The counterweight seat of the counterweight device is pre-installed into the counterweight groove of the main body of the steam distributor; Start the main body of the steam distributor and make it rotate at a low speed; Obtain the circumferential runout of the rotary joint in each circumferential direction of the test piece; Based on the circumferential runout of the rotary joint detected by the test piece, mark the peak value of the circumferential runout. Mark the eccentric orientation of the rotary joint based on the peak value of the circumferential runout. The circumferential runout of the rotary joint in the eccentric orientation is obtained in real time by the detection component. Compare the circumferential runout of the eccentric orientation with the preset tolerance threshold. If the circumferential runout of the eccentric orientation is greater than the preset tolerance threshold, the counterweight will be increased or decreased according to the circumferential runout of the eccentric orientation.

[0016] The beneficial effects of this invention are as follows: A split-type steam distributor and its counterweight method are provided. The split-type steam distributor has a counterweight groove on the outer periphery of the main body of the steam distributor, and a counterweight seat is fixedly installed in the counterweight groove, which provides a stable and precise mounting base for the counterweight component, limits the installation position of the counterweight component, and avoids secondary deviations caused by the counterweight installation. By setting up detection components, the circumferential runout of the rotary joint can be acquired in real time, thus providing feedback on the actual imbalance state. Multiple counterweights with different weights can be detachably connected to the counterweight base in various combinations. Operators can use the detection components to measure the circumferential runout of the rotary joint and assemble combinations of counterweights of different weights onto the counterweight base. This adaptively compensates for mass eccentricity caused by manufacturing tolerances and time-varying condensate distribution based on real-time operating conditions, achieving dynamic balance correction at the quality level. This improves upon the shortcomings of geometric alignment alone, ensuring the coaxiality of the steam distributor body and the rotary joint, suppressing circumferential runout of the rotary joint, reducing bearing wear, extending the service life of the bearings and the entire steam distributor, and improving equipment operational stability. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of the split-type steam distributor provided by the present invention; Figure 2 This is a second-view structural schematic diagram of the split-type steam distributor provided by the present invention; Figure 3 This is a schematic diagram of the counterweight device of the split-type steam distributor provided by the present invention; Figure 4 This is an exploded view of the counterweight device of the split-type steam distributor provided by the present invention; Figure 5 This is a partial structural schematic diagram of the counterweight device of the split-type steam distributor provided by the present invention; Figure 6 yes Figure 5 A magnified view of part A in the middle; Figure 7 This is a schematic diagram of the counterweight seat of the split-type steam distributor provided by the present invention; Figure 8 This is a partial structural schematic diagram of the counterweight seat of the split-type steam distributor provided by the present invention; Figure 9 This is a schematic diagram of the filter device and steam intake device of the split-type steam distributor provided by the present invention. Figure 10 This is an exploded view of the filter box and filter screen of the split-type steam distributor provided by the present invention; Figure 11 This is a partial exploded view of the filter box of the split-type steam distributor provided by the present invention; Figure 12 yes Figure 11 A magnified view of part B in the middle section; Figure 13 This is a schematic diagram of the protective component of the split-type steam distributor provided by the present invention.

[0018] In the picture: 1. Steam distributor body; 2. Rotary joint; 3. Steam inlet device; 4. Counterweight device; 41. Counterweight groove; 42. Counterweight base; 421. First clamp; 4211. Fixing block; 4212. Connecting hole; 422. Second clamp; 4221. Fixing groove; 4222. Slot hole; 423. Plug; 424. Hand-tightening bolt; 425. Second elastic element; 43. Counterweight; 44. Assembly / disassembly assembly; 441. Mounting block; 4411. Operating groove; 442. Mounting groove; 443. Slot; 444. Limiting block; 445. First elastic element; 446. Unlocking element; 447. Push plate; 5. Filter device; 51. Main intake pipe; 52. Filter box; 521. Box body; 5211. Guide groove; 5212. Positioning groove; 522. Baffle; 5221. Positioning block; 53. Filter screen; 54. First valve; 55. Second valve; 56. First flange; 57. Second flange; 58. Transmission module; 581. Handle; 582. First gear; 583. Second gear; 584. Double-acting screw; 585. Moving frame; 586. Threaded hole; 587. Fixing hole; 588. Fixing frame; 6. Protective components; 61. First protective component; 611. Rectangular groove; 62. Second protective component; 621. Rectangular block; 63. Magnetic block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] In the design and manufacturing of the wire drying machine, one end of the steam distributor body 1 has a first connecting flange. The first end of the rotary joint 2 is sealed and inserted into the steam distributor body 1, and the rotary joint 2 is coaxially arranged with the steam distributor. A second connecting flange and a tapered sleeve are provided between the steam distributor body 1 and the rotary joint 2. The tapered sleeve is fitted onto the rotary joint 2, and the second connecting flange has a mounting hole with the same taper as the tapered sleeve. The second connecting flange can be fitted onto the tapered sleeve, allowing the tapered sleeve to be tightened and clamped onto the rotary joint 2. Multiple fasteners are spaced apart circumferentially along the first connecting flange, and multiple fasteners connect the first connecting flange and the second connecting flange. During the process of tightening the fasteners to connect the first connecting flange and the second connecting flange, because the second connecting flange has a tapered mounting hole that mates with the tapered sleeve, automatic centering adjustment can be achieved. This enables the rotary joint 2 to dock with the steam distributor while achieving geometric alignment during assembly, ensuring the coaxiality of the rotary joint 2 and the steam distributor, thereby reducing the circumferential runout of the rotary joint 2.

[0024] However, due to manufacturing tolerances and time-varying distribution of condensate, there is a mass eccentricity between the rotary joint 2 and the steam distributor. To achieve mass eccentricity compensation, resolve the coaxiality error between the steam distributor and the rotary joint 2 caused by mass alignment issues, and reduce the circumferential runout of the rotary joint 2 due to mass imbalance, this invention provides a split-type steam distributor and its counterweight method, as detailed below: On the one hand, please refer to Figures 1 to 8 This embodiment provides a split-type steam distributor, including a counterweight device 4, a detection element, and a steam distributor body 1, a rotary joint 2, and a steam inlet device 3 arranged coaxially. One end of the rotary joint 2 is detachably connected to the steam distributor body 1, and the other end of the rotary joint 2 is rotatably connected to the steam inlet device 3 through a bearing. The counterweight device 4 includes a counterweight base 42 and a counterweight assembly. The outer peripheral wall of the steam distributor body 1 is provided with a counterweight groove 41, and the counterweight base 42 is installed in the counterweight groove 41. The counterweight assembly includes multiple counterweights 43, which have different weights and can be detachably connected to the counterweight base 42 in different combinations. The detection element is used to detect the circumferential runout of the rotary joint 2.

[0025] With this configuration, the split-type steam distributor has a counterweight groove 41 on the outer periphery of the steam distributor body 1, and the counterweight seat 42 is fixedly installed in the counterweight groove 41, which provides a stable and precise mounting base for the counterweight component, limits the installation position of the counterweight component, and avoids secondary deviations caused by the installation of the counterweight. By setting up detection components, the circumferential runout of the rotary joint 2 can be obtained in real time, thereby providing feedback on the actual imbalance state. Multiple counterweights 43 with different weights are set up through the counterweight assembly. These counterweights 43 can be detachably connected to the counterweight base 42 in different combinations. Operators can use the detection components to detect the circumferential runout of the rotary joint 2 and assemble combinations of counterweights 43 with different weights onto the counterweight base 42. Based on real-time operating conditions, the mass eccentricity caused by manufacturing tolerances and time-varying distribution of condensate is adaptively compensated, achieving dynamic balance correction at the mass level. This improves upon the defect that geometric alignment alone cannot eliminate mass eccentricity, ensures the coaxiality of the steam distributor body 1 and the rotary joint 2, suppresses circumferential runout of the rotary joint 2, reduces bearing wear, extends the service life of the bearings and the entire split-type steam distributor, and improves the operational stability of the equipment.

[0026] Specifically, the testing component is a dial indicator. It is understood that the working principle and arrangement method of testing the circumferential runout of the rotary joint 2 are common knowledge in the field, and will not be described in detail in this embodiment. The testing component is not shown in the accompanying drawings of this embodiment.

[0027] Alternatively, please refer to Figures 3 to 6The counterweight device 4 also includes a disassembly and assembly component 44. The disassembly and assembly component 44 includes a mounting block 441 disposed on one of the counterweight base 42 and the counterweight component 43, and a mounting groove 442 disposed on the other of the counterweight base 42 and the counterweight component 43. Both ends of the mounting groove 442 are provided with slots 443, and both slots 443 are connected to the mounting groove 442. Both ends of the mounting block 441 are provided with limit blocks 444. The mounting block 441 is inserted into the mounting groove 442 along a first direction. The limit blocks 444 and the mounting block 441 slide in a second direction, and the two limit blocks 444 are inserted into the two slots 443 one-to-one along the second direction. The first direction and the second direction form an angle, and the groove wall of the slot 443 can prevent the limit blocks 444 from separating from the counterweight base 42 along the first direction. With this configuration, during assembly, the mounting block 441 is first inserted into the mounting slot 442 along the first direction, and then the two end limit blocks 444 are driven to slide relative to the mounting block 441 along the second direction, so that the limit blocks 444 extend into the corresponding slots 443; the slot walls of the slots 443 resist the limit blocks 444, restricting the limit blocks 444 and the entire mounting block 441 from disengaging along the first direction, thus achieving rapid assembly of the counterweight 43 and the counterweight base 42; disassembly can be completed by reversing the operation. Through the insertion and cooperation in two directions, the first direction completes the assembly of the counterweight 43 and the counterweight base 42, and the second direction slides and locks, eliminating the need for bolts and fasteners, making the disassembly and assembly of the counterweight 43 convenient.

[0028] Alternatively, please refer to Figure 6 The limiting block 444 has an insertion position for engaging with the slot 443 and a separation position for disengaging from the slot 443. The disassembly assembly 44 also includes a first elastic element 445, which is configured to cause the limiting block 444 to always tend to move towards the insertion position. Specifically, the first elastic element 445 is a spring. With this configuration, when the limiting block 444 is in the insertion position, the limiting block 444 extends into the slot 443, achieving axial locking; when the limiting block 444 is in the separation position, the limiting block 444 exits the slot 443, releasing the locking state. During assembly, the limiting block 444 is moved to the separation position by overcoming the elastic force of the first elastic element 445, so that the mounting block 441 can be inserted into the mounting groove 442 along the first direction. After assembly, the first elastic element 445 is reset and the external force is released, driving the limiting block 444 to slide into the slot 443 to complete the locking. During disassembly, the limiting block 444 is pushed to the separation position by overcoming the elastic force of the first elastic element 445, so that the mounting block 441 can be pulled out from the mounting groove 442 along the first direction and the counterweight 43 can be removed.

[0029] Furthermore, the disassembly and assembly assembly 44 also includes an unlocking element 446. When the limiting block 444 is inserted into the slot 443, the unlocking element 446 can selectively drive the limiting block 444 to the separation position. Specifically, the unlocking element 446 is a lever. The mounting block 441 is provided with an operating groove 4411. The disassembly and assembly assembly 44 also includes a push plate 447, which is slidably disposed in the operating groove 4411 along the second direction. One side of the push plate 447 is fixedly connected to the limiting block 444, and the other side of the push plate 447 abuts against or is connected to the first elastic member 445. The groove wall of the operating groove 4411 is provided with a sliding groove extending along the second direction. The unlocking element 446 is connected to the side wall of the push plate 447 and slides through the sliding groove. With this configuration, when the counterweight 43 is assembled into the counterweight base 42, the first elastic element 445 applies elastic force to the push plate 447, and the push plate 447 pushes the limiting block 444 to remain in the insertion position. At this time, the limiting block 444 extends into the slot 443, ensuring that the counterweight 43 and the counterweight base 42 are locked. When it is necessary to disassemble the counterweight 43, the lever is moved, causing the lever to slide in the slide groove along the second direction. The lever drives the push plate 447 to compress the first elastic element 445, and the limiting block 444, which is fixedly connected to the push plate 447, moves to the separation position, and the limiting block 444 exits the slot 443. At this time, the mounting block 441 can be pulled out from the mounting slot 442 along the first direction to disassemble the counterweight 43. After releasing the lever, the first elastic element 445 resets under the action of elastic force, so that the push plate 447, the lever, and the limiting block 444 automatically reset back to the insertion position.

[0030] Alternatively, please refer to Figure 7 The counterweight base 42 includes a first clamp 421 and a second clamp 422, which are detachably connected. The first clamp 421 and the second clamp 422 are installed in the counterweight groove 41 and can tightly grip the steam distributor body 1. This configuration allows for detachable connection of the two clamps, enabling the assembly and disassembly of the counterweight base 42 without disassembling the steam distributor body 1. This facilitates the disassembly, inspection, and replacement of the counterweight base 42, simplifying maintenance operations.

[0031] Preferably, the inner wall of the counterweight groove 41 has a frosted layer; the inner walls of the first clamp 421 and the second clamp 422 are both provided with anti-slip pads. Both the frosted layer and the anti-slip pads can increase the frictional resistance between the inner wall of the counterweight groove 41 and the inner wall of the counterweight seat 42, effectively preventing the counterweight seat 42 from slipping or rotating under vibration conditions; at the same time, the anti-slip pads can play a buffering and vibration-damping role, reduce rigid contact wear, compensate for assembly gaps, and further improve assembly stability.

[0032] Optionally, both the first clamp 421 and the second clamp 422 are provided with mounting blocks 441 and limiting blocks 444. The counterweight 43 includes two semi-circular counterweight blocks, each with a mounting groove 442. The two counterweight blocks can be detachably connected to the first clamp 421 and the second clamp 422 respectively. With this configuration, the first clamp 421 and the second clamp 422 are each independently configured with counterweight blocks, and the counterweight blocks on both sides are independently locked. The assembly does not interfere with each other, and any one of the counterweight blocks can be disassembled and installed separately, which facilitates the adjustment of the total mass of the counterweight. By configuring the mass of the counterweight blocks on both sides separately, the center of gravity of the overall counterweight can be flexibly adjusted, thereby compensating for the mass eccentricity problem of the rotary joint 2 and ensuring the coaxiality between the steam distributor body 1 and the rotary joint 2 during the rotation of the split steam distributor, thereby reducing the circumferential runout of the rotary joint 2.

[0033] Further, please refer to Figure 7 and Figure 8One end of the first clamp 421 is hinged to the first end of the second clamp 422. The other end of the first clamp 421 is provided with a fixing block 4211, which has a connecting hole 4212. The second end of the second clamp 422 is provided with a fixing groove 4221. The groove wall of the fixing groove 4221 has a slot hole 4222 communicating with the fixing groove 4221. The fixing block 4211 can be inserted into the fixing groove 4221. The counterweight base 42 also includes a plug 423 and a hand screw. The bolt 424 and the second elastic element 425 are configured. The hand-tightening bolt 424 includes an operating part and a threaded part. The second elastic element 425 is located in the slot 4222 and is sleeved on the threaded part. The threaded part is screwed to the end of the slot 4222 away from the fixing slot 4221. The plug 423 can close the end of the slot 4222 that communicates with the fixing slot 4221, and at least a part of the plug 423 passes through the connecting hole 4212. The end of the threaded part away from the operating part can selectively abut against the plug 423. With this configuration, when the counterweight 42 needs to be installed, the first clamp 421 is rotated with the hinge end as the fulcrum, so that the fixing block 4211 is inserted into the fixing slot 4221 of the second clamp 422, completing the alignment of the two ends. The operating part of the rotating hand-tightening bolt 424 is rotated, and the screw part is fed along the thread towards the fixing groove 4221. The screw part presses against the plug 423, and the plug 423 moves toward the fixing block 4211. The plug 423 passes through the fixing groove 4221 and presses against the fixing block 4211 inserted into the groove. The plug 423 part can enter the connecting hole 4212 on the fixing block 4211, realizing the locking and clamping of the first clamp 421 and the second clamp 422. The second elastic member 425 is sleeved on the screw part and received inside the groove 4222. The second elastic member 425 abuts against the plug 423 through its own elasticity, further ensuring that the plug 423 can pass through the fixing groove 4221 and insert into the connecting hole 4212 of the fixing block 4211, avoiding the loosening of the hand-tightening bolt 424, and further ensuring the connection reliability of the first clamp and the second clamp. When it is necessary to remove the fixing block 4211 from the fixing groove 4221, first remove the hand-tightening bolt 424 from the groove 4222, and then insert a tool into the groove 4222 to compress the second elastic element 425. At this time, there is no external force applied to the plug 423, and it can then be removed from the connecting hole 4212, making it easier for the fixing block 4211 to be removed from the fixing groove 4221.

[0034] Alternatively, please refer to Figure 2 , Figure 9 and Figure 10The split-type steam distributor also includes a filter device 5, which includes an air inlet main pipe 51 and two filter components. The air inlet main pipe 51 includes an air inlet, an air outlet, and two filter pipes. The input ends of the two filter pipes are connected to the air inlet, and the output ends of the two filter pipes are connected to the air outlet. The air inlet is used to connect to an external air source, and the air outlet is connected to the steam inlet device 3. The two filter components are correspondingly arranged on the two filter pipes. The filter components include a filter box 52, a filter screen 53, a first valve 54, and a second valve 55. The first end of the filter box 52 is connected or disconnected to the end of the corresponding filter pipe near the air inlet through the first valve 54, and the second end of the filter box 52 is connected or disconnected to the end of the corresponding filter pipe near the air outlet through the second valve 55. The filter box 52 includes a box body 521 and a baffle 522. The box body 521 includes a receiving space and an opening communicating with the receiving space. The filter screen 53 is detachably installed in the receiving space, and the baffle 522 is used to open or close the opening.

[0035] With this setup, when the filter screen 53 in one filter box needs cleaning, the corresponding first valve 54 and second valve 55 are closed, while the first valve 54 and second valve 55 of the other filter box are opened. The gas flow direction can be automatically switched from one filter box to another for filtration. The filter screen 53 that needs cleaning can be cleaned without stopping the machine, avoiding production interruptions caused by machine shutdown for maintenance and improving cigarette production efficiency.

[0036] Specifically, please refer to Figures 10 to 12 The filter assembly also includes a transmission module 58, which includes a fixed frame 588, a bidirectional screw 584, a handle 581, a first gear 582, a second gear 583, and two movable frames 585. The fixed frame 588 is fixedly connected to the baffle 522. The bidirectional screw 584 is disposed in the fixed frame 588. The first gear 582 and the second gear 583 are both disposed in the fixed frame 588. The first gear 582 and the second gear 583 are two meshing bevel gears. The handle 581 is coaxially connected to the first gear 582 and... Hand 581 can rotate relative to fixed frame 588. Bidirectional screw 584 is coaxially fixedly connected to second gear 583, and the threads at both ends of bidirectional screw 584 are respectively screwed into the threaded holes 586 of two movable frames 585. The box body 521 has two fixing holes 587 corresponding to the two movable frames 585. The two movable frames 585 can be inserted into the corresponding fixing holes 587 or separated from the fixing holes 587. The inner wall of the box body 521 is provided with guide groove 5211, and filter screen 53 is slidably connected to guide groove 5211.

[0037] When disassembling the filter screen 53 that needs cleaning, the reverse handle 581 drives the first gear 582 to reverse, and the first gear 582 meshes with the second gear 583 to rotate, which in turn drives the double-headed screw 584 to reverse. The double-headed screw 584 drives the two movable brackets 585 to move in a direction away from each other, so that the two movable brackets 585 are pulled out from the corresponding fixing holes 587 and the fixing is released. Then, the baffle 522 is removed outward, and the filter screen 53 in the box 521 can be slid out from the guide groove 5211 for cleaning.

[0038] After the filter screen 53 is cleaned, push the cleaned filter screen 53 into the guide slide groove 5211, then align the baffle 522 with the opening of the box 521 to close the opening, turn the handle 581 clockwise to drive the two moving frames 585 to move closer to each other and insert them into the fixing hole 587 to complete the reliable fixing of the baffle 522.

[0039] By setting up a transmission structure of gears, screws, and a moving frame 585, the filter box 521 can be opened quickly, and the filter screen 53 can be installed and locked, which greatly shortens the maintenance time, ensures the continuity and stability of air intake filtration, effectively improves the purity of the gas entering the split-type steam distributor, and ensures the drying efficiency and tobacco quality of the tobacco drying machine.

[0040] Furthermore, a positioning groove 5212 is provided on the outer wall of the housing 521, extending along the length of the guide groove 5211. A positioning block 5221 is provided on the baffle 522, which is slidably inserted into the positioning groove 5212. With this configuration, when the baffle 522 needs to be installed, the positioning block 5221 is slidably inserted into the positioning groove 5212, guiding and limiting the movement of the baffle 522. This ensures precise alignment between the baffle 522 and the opening of the housing 521, guaranteeing that the baffle 522 can close the opening of the housing 521, thereby ensuring reliable filtration by the filter box.

[0041] Preferably, each filter box 52 is provided with two filter screens 53. This further improves the filtration effect of the filtration device 5.

[0042] Alternatively, please refer to Figure 9 and Figure 13The intake pipe 51 has a first flange 56 at one end with an outlet. A branch pipe communicating with the steam intake device 3 is provided on the outer peripheral wall of the steam intake device 3. A second flange 57 is provided at the end of the branch pipe away from the steam intake device 3. The first flange 56 and the second flange 57 are fitted together and detachably connected by bolts. The split-type steam distributor also includes a protective assembly 6, which includes a first protective element 61, a second protective element 62, and two magnetic blocks 63. Both the first protective element 61 and the second protective element 62 are semi-circular ring-shaped. The structure includes a first protective member 61 and a second protective member 62 that can surround and hold the outer circumferential surfaces of the first flange 56 and the second flange 57. Both ends of the first protective member 61 are provided with rectangular grooves 611, and rectangular holes are provided on the groove walls of the rectangular grooves 611. Both ends of the second protective member 62 are provided with rectangular blocks 621, and the rectangular blocks 621 are provided with grooves corresponding to the rectangular holes. The two rectangular blocks 621 are inserted into the two rectangular grooves 611 in a one-to-one correspondence. The two magnetic blocks 63 pass through the two rectangular holes and are inserted into the two grooves in a one-to-one correspondence.

[0043] With this configuration, during assembly, the first protective component 61 and the second protective component 62 are aligned from the outside of the flange, so that the rectangular blocks 621 at both ends of the second protective component 62 are inserted into the corresponding rectangular slots 611 of the first protective component 61, completing radial alignment; then, the magnetic block 63 is passed through the rectangular hole and inserted into the groove of the rectangular block 621, relying on magnetic force to maintain the insertion position of the magnetic block 63, locking the first protective component 61 and the second protective component 62 into a whole, completely covering the bolt connection between the first flange 56 and the second flange 57; during disassembly, the magnetic block 63 can be directly removed to separate the two halves of the protective component, exposing the flange bolts, which facilitates flange assembly and disassembly.

[0044] On the other hand, a counterweight method for a split-type steam distributor is provided, applicable to the split-type steam distributor as described above. The counterweight method for the split-type steam distributor includes: The counterweight seat 42 of the counterweight device 4 is pre-installed into the counterweight groove 41 of the steam distributor body 1; Start the main body of the steam distributor 1 and make it rotate at a low speed; Obtain the circumferential runout of the rotary joint in each of the two circumferential directions of the test piece; Based on the circumferential runout of the rotary joint 2 detected by the test piece, mark the peak value of the circumferential runout. Based on the peak value of the circumferential runout, mark the eccentric orientation of rotary joint 2; The circumferential runout of the rotary joint 2 in the eccentric orientation is obtained in real time by the detection component; Compare the circumferential runout of the eccentric orientation with the preset tolerance threshold. If the circumferential runout of the eccentric orientation is greater than the preset tolerance threshold, the counterweight 43 will be increased or decreased according to the circumferential runout of the eccentric orientation.

[0045] By manually squeezing the lever of the disassembly and assembly component 44, the counterweight 43 in the corresponding position can be quickly added or removed to fine-tune the compensation mass moment. The counterweight 43 is equipped with multiple sets of different weight specifications, and the appropriate counterweight 43 can be flexibly selected according to the actual eccentricity. After repeated start-ups and shutdowns of the equipment to retest the runout state, the counterweight configuration is repeatedly iterated and fine-tuned until the circumferential runout of the rotary joint 2 is reduced to within the preset tolerance threshold range. This completes the mass eccentricity compensation under all working conditions, completely eliminating the center of gravity shift problem caused by manufacturing tolerances and time-varying distribution of condensate, and solving the inherent defects of traditional steam distributors that cannot correct eccentricity and have large rotational runout during operation.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A split-type steam distributor for use in a drum-type filament dryer, comprising a steam distributor body (1), a rotary joint (2), and a steam inlet device (3) arranged coaxially, wherein one end of the rotary joint (2) is detachably connected to the steam distributor body (1), and the other end of the rotary joint (2) is rotatably connected to the steam inlet device (3) via a bearing, characterized in that, The steam distributor also includes: The counterweight device (4) includes a counterweight base (42) and a counterweight assembly. The outer peripheral wall of the steam distributor body (1) is provided with a counterweight groove (41). The counterweight base (42) is installed in the counterweight groove (41). The counterweight assembly includes multiple counterweights (43). The multiple counterweights (43) have different weights. The multiple counterweights (43) can be detachably connected to the counterweight base (42) in different combinations. The testing component is used to detect the circumferential runout of the rotary joint (2).

2. The split-type steam distributor according to claim 1, characterized in that, The counterweight device (4) further includes a disassembly and assembly assembly (44), which includes a mounting block (441) disposed on one of the counterweight base (42) and the counterweight (43), and a mounting groove (442) disposed on the other of the counterweight base (42) and the counterweight (43). Both ends of the mounting groove (442) are provided with slots (443), and both slots (443) communicate with the mounting groove (442). Both ends of the mounting block (441) are provided with slots (443). A limiting block (444) is provided. The mounting block (441) is inserted into the mounting groove (442) along the first direction. The limiting block (444) and the mounting block (441) slide in a second direction. The two limiting blocks (444) are inserted into the two slots (443) one-to-one along the second direction. The first direction and the second direction form an angle. The slot wall of the slot (443) can prevent the limiting block (444) from separating from the counterweight (42) along the first direction.

3. The split-type steam distributor according to claim 2, characterized in that, The limiting block (444) has an insertion position for engaging with the slot (443) and a separation position for disengaging from the slot (443). The disassembly assembly (44) further includes a first elastic element (445) configured to cause the limiting block (444) to always tend to move toward the insertion position.

4. The steam distributor according to claim 3, characterized in that, The disassembly assembly (44) also includes an unlocking component (446), which can selectively drive the limiting block (444) to the separation position when the limiting block (444) is inserted into the slot (443).

5. The split-type steam distributor according to claim 1, characterized in that, The counterweight base (42) includes a first clamp (421) and a second clamp (422), which are detachably connected. The first clamp (421) and the second clamp (422) are installed in the counterweight groove (41), and the first clamp (421) and the second clamp (422) can hold the steam distributor body (1).

6. The split-type steam distributor according to claim 5, characterized in that, The inner wall of the counterweight groove (41) has a frosted layer; And / or, the inner walls of the first clamp (421) and the second clamp (422) are provided with anti-slip rubber pads.

7. The split-type steam distributor according to claim 5, characterized in that, One end of the first clamp (421) is hinged to the first end of the second clamp (422). A fixing block (4211) is provided at the other end of the first clamp (421). A connecting hole (4212) is provided on the fixing block (4211). A fixing groove (4221) is provided at the second end of the second clamp (422). A slot (4222) communicating with the fixing groove (4221) is opened on the groove wall of the fixing groove (4221). The fixing block (4211) can be inserted into the fixing groove (4221). The counterweight (42) also includes a plug (423) and a hand-tightening bolt (42...). 4) The second elastic element (425) is located in the slot (4222) and sleeved on the screw part. The screw part is screwed to the end of the slot (4222) away from the fixing groove (4221). The plug (423) can close the end of the slot (4222) that communicates with the fixing groove (4221). At least a part of the plug (423) passes through the connecting hole (4212). The end of the screw part away from the operating part can selectively abut against the plug (423).

8. The split-type steam distributor according to claim 1, characterized in that, The split-type steam distributor also includes a filter device (5), which comprises: The main intake pipe (51) includes an intake port, an outlet and two filter pipes. The input ends of the two filter pipes are connected to the intake port, and the output ends of the two filter pipes are connected to the outlet. The intake port is used to connect with an external air source, and the outlet is connected with the steam intake device (3). Two filter components are respectively disposed on two filter pipes. Each filter component includes a filter box (52), a filter screen (53), a first valve (54), and a second valve (55). The first end of the filter box (52) is connected or disconnected from the end of the corresponding filter pipe near the air inlet through the first valve (54). The second end of the filter box (52) is connected or disconnected from the end of the corresponding filter pipe near the air outlet through the second valve (55). The filter box (52) includes a box body (521) and a baffle (522). The box body (521) includes a receiving space and an opening communicating with the receiving space. The filter screen (53) is detachably disposed in the receiving space. The baffle (522) is used to open or close the opening.

9. The split-type steam distributor according to claim 8, characterized in that, The intake pipe (51) is provided with a first flange (56) at one end where the outlet is located. The outer peripheral wall of the steam intake device (3) is provided with a branch pipe communicating with the steam intake device (3). The end of the branch pipe away from the steam intake device (3) is provided with a second flange (57). The first flange (56) and the second flange (57) are fitted together and detachably connected by bolts. The split-type steam distributor also includes a protective component (6). The protective component (6) includes a first protective element (61), a second protective element (62), and two magnetic blocks (63). The first protective element (61) and the second protective element (62) are both semi-circular ring-shaped structures. The structure is such that the first protective member (61) and the second protective member (62) can surround and hold the outer peripheral surfaces of the first flange (56) and the second flange (57). Both ends of the first protective member (61) are provided with rectangular grooves (611), and rectangular holes are opened on the groove walls of the rectangular grooves (611). Both ends of the second protective member (62) are provided with rectangular blocks (621), and the rectangular blocks (621) are provided with grooves corresponding to the rectangular holes. The two rectangular blocks (621) are inserted into the two rectangular grooves (611) one by one. The two magnetic blocks (63) pass through the two rectangular holes one by one and are inserted into the two grooves.

10. A method for counterweighting a split-type steam distributor, characterized in that, Applied to the split-type steam distributor as described in any one of claims 1-9, the counterweight method of the split-type steam distributor includes: The counterweight seat (42) of the counterweight device (4) is pre-installed into the counterweight groove (41) of the main body (1) of the steam distributor; Start the main body of the steam distributor (1) and make it rotate at a low speed; The circumferential runout of the rotary joint (2) in each circumferential direction is obtained by the test piece. Based on the circumferential runout of the rotary joint (2) detected by the test piece, mark the peak value of the circumferential runout. Based on the peak value of the circumferential runout, mark the eccentric orientation corresponding to the rotary joint (2); The circumferential runout of the rotary joint (2) at the eccentric orientation is obtained in real time through the detection device. Compare the circumferential runout of the eccentric orientation with the magnitude of the preset tolerance threshold; If the circumferential runout of the eccentric orientation is greater than the preset tolerance threshold, the counterweight (43) is increased or decreased according to the circumferential runout of the eccentric orientation.

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