CN112977487A - Single-pipe double-line magnetic suspension traffic vacuum pipeline with sealing door - Google Patents
Single-pipe double-line magnetic suspension traffic vacuum pipeline with sealing door Download PDFInfo
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- CN112977487A CN112977487A CN202110535456.8A CN202110535456A CN112977487A CN 112977487 A CN112977487 A CN 112977487A CN 202110535456 A CN202110535456 A CN 202110535456A CN 112977487 A CN112977487 A CN 112977487A
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- 238000007789 sealing Methods 0.000 title claims abstract description 310
- 239000000725 suspension Substances 0.000 title description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 238000005339 levitation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/10—Tunnel systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/08—Sliding or levitation systems
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Abstract
本发明公开了一种带有密封门的单管双线磁浮交通真空管道，包括真空管道，真空管道被挡风板从中部分割为两个行车通道，同时在真空管道内还设置有驱动电机和密封扇，密封扇的一侧与挡风板密闭相连，另一侧密闭连接有摆杆，摆杆与驱动电机动力相连，所述真空管道内还设置有第一夹持密封装置和第二夹持密封装置，从而实现对密封扇底部和顶部的完全密闭；与现有技术相比，本发明结合单管双线真空管道的结构特点，采用摆杆摆动的方式实现密封扇的展开和回收，其大大简化了相应的机械结构，缩小了设备体积，不但避免了对真空管道完整性的破坏，提高了真空管道的结构强度，同时也减少设备占用的空间，避免对阻塞比造成影响，保证车辆的动力学性能。
The invention discloses a single-tube double-line maglev traffic vacuum pipeline with a sealing door, which includes a vacuum pipeline. The vacuum pipeline is divided into two traffic passages from the middle by a windshield. At the same time, a driving motor and a sealing device are also arranged in the vacuum pipeline. fan, one side of the sealing fan is airtightly connected with the windshield, the other side is airtightly connected with a swing rod, and the swing rod is powered with the driving motor, and the vacuum pipeline is also provided with a first clamping sealing device and a second clamping sealing device Therefore, the bottom and top of the sealing fan can be completely sealed; compared with the prior art, the present invention combines the structural characteristics of the single-tube double-line vacuum pipeline, and adopts the swing of the pendulum to realize the expansion and recovery of the sealing fan, which greatly improves the efficiency of the sealing fan. It simplifies the corresponding mechanical structure and reduces the volume of the equipment, which not only avoids the damage to the integrity of the vacuum pipeline, but also improves the structural strength of the vacuum pipeline, but also reduces the space occupied by the equipment, avoids affecting the blocking ratio, and ensures the power of the vehicle academic performance.
Description
Technical Field
The invention relates to the technical field of rail transit equipment, in particular to a single-pipe double-line magnetic levitation traffic vacuum pipeline with a sealing door.
Background
The speed is always a target for developing transportation by human, and the speed lifting space of the traditional wheel-rail train is limited due to the constraint of factors such as wheel-rail adhesion coefficient, air resistance and the like, so that the magnetic suspension train with the characteristics of low noise and high-speed running is gradually concerned and researched. When the maglev train runs in an open-line environment at a high speed, the maglev train also suffers from serious aerodynamic problems, so that a vacuum pipeline high-temperature superconducting magnetic levitation transportation system with the characteristics of low resistance, self-stabilization levitation and the like is produced.
In order to ensure low-resistance operation of the pipeline train, the air pressure in the pipeline needs to be reduced, and the normal atmospheric pressure needs to be maintained in the train. When the maglev train arrives at a station, the air pressure in a transfer area needs to be increased to the atmospheric pressure or a closed getting-on and getting-off passage is established between a train body and the station; and the closed getting-on and getting-off channel is established, the reliability and the tightness are difficult to guarantee, the structure is complex, and the requirement on the precision of a control system is high.
The existing pipe sealing door technology, such as the split type of the vertical moving isolation door of vacuum pipe traffic (with the publication number of CN 200910219090.2) and the vertical type of the ultrathin vacuum pipe traffic isolation door capable of being embedded into a rail gap (with the publication number of CN 109356647B), needs to open up a larger operation space due to the complexity of the structure, not only greatly increases the cost, but also destroys the integrity of the pipe structure, and can destroy the strength of the pipe structure to a certain extent and reduce the service life of the pipe.
Disclosure of Invention
The invention aims to provide a single-pipe double-line magnetic levitation traffic vacuum pipeline with a sealing door, the sealing door is simple in structure, does not need to occupy a large amount of pipeline space, and can effectively ensure the integrity of the pipeline; meanwhile, the sealing device has the advantages of convenience in operation, good sealing performance and the like.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a single-pipe double-line magnetic suspension traffic vacuum pipeline with a sealing door comprises a vacuum pipeline, wherein the vacuum pipeline is divided into two mutually independent travelling crane channels through a wind shield; a driving motor and a sealing fan are further arranged in the vacuum pipeline, and one side of the sealing fan is hermetically connected with the wind shield; the driving motor is connected with a swing rod hermetically connected with the sealing fan, and the sealing fan is driven to expand through the swing of the swing rod so as to seal the section of the whole travelling crane channel; and a first clamping and sealing device and a second clamping and sealing device which are respectively used for sealing the bottom and the top of the sealing fan are further arranged in the vacuum pipeline.
Preferably, the first clamping and sealing device comprises a support frame, and a fixed box and a movable clamping box which are matched with each other, and the fixed box and the support frame are fixedly arranged at the bottom of the vacuum pipeline; follow the axis direction of fixed case is provided with one-level fixed slot and one-level swing groove on the fixed case, one-level fixed slot internal fixation is provided with and is used for the airtight connecting plate that links to each other of deep bead and sealed fan, and the pendulum rod sets up in one-level swing inslot, driving motor passes movable centre gripping case and support frame and links to each other with the pendulum rod is fixed, is provided with the pneumatic cylinder that is used for driving movable centre gripping case on the support frame.
Preferably, the second clamping and sealing device comprises a sliding track, a fixed sealing plate and a movable sealing plate, and a first sliding chute matched with the oscillating bar is arranged on the sliding track; the fixed sealing plate comprises a base plate and a first sealing strip, wherein the base plate and the first sealing strip are integrally connected;
the movable sealing plate comprises a sealing plate and a second sealing strip, the sealing plate is integrally connected with the movable sealing plate, and the first sealing strip is matched with the sealing plate to hermetically clamp the sealing fan; the sealing plate is connected with the vacuum pipeline through a plurality of groups of second sliding seats and second sliding rails which are mutually matched, sealing between the sealing plate and the vacuum pipeline is achieved through a second sealing strip, and a regulating hydraulic cylinder connected with the sealing plate is arranged in the vacuum pipeline.
Preferably, the swing rod comprises a connecting rod and a telescopic rod, one end of the telescopic rod is inserted into the connecting rod in a sliding manner, the first chute is a T-shaped groove, and the top of the telescopic rod is provided with a roller inserted into the first chute; the side surface of the connecting rod is also provided with a clamping plate, a connecting boss and a connecting hole which are matched with each other are arranged between the connecting rod and the clamping plate, and the connecting boss is in screwed connection with a fastening screw; and a sealing rubber strip matched with the bottom surface of the travelling crane channel is arranged at the bottom of the connecting rod.
Preferably, at least one secondary swing groove is arranged between the primary fixed groove and the primary swing groove, and the swing amplitude of each secondary swing groove is linearly increased along the direction close to the primary swing groove; a driven swing rod hermetically connected with the sealing fan is arranged in each secondary swing groove, and the driven swing rod and the swing rod swing coaxially; the driven swing rods and the adjacent driven swing rods are sequentially in power connection through arc-shaped driving grooves and linkage rods which are matched with each other.
Preferably, the driven swing rod comprises a driven connecting rod and a driven telescopic rod, one end of the driven telescopic rod is inserted into the driven connecting rod in a sliding mode, and the other end of the driven telescopic rod is provided with a driven roller; the side face of the driven connecting rod is also provided with a driven clamping plate, a connecting boss and a connecting hole which are matched with each other are arranged between the driven connecting rod and the driven clamping plate, and the connecting boss is connected with a fastening screw through a screw thread.
Preferably, a second sliding chute matched with the driven swing rod is arranged on the sliding track, and a clamping boss for clamping the sealing fan through mutual engagement is arranged between the first sealing strip and the sealing plate; the bottom surfaces of the first sliding groove and the second sliding groove are provided with limiting grooves matched with the rollers.
Preferably, a sealing block used for sealing the tail end of the first sliding groove is further arranged in the vacuum pipeline, a sealing slot matched with the swing rod is formed in the sealing block, and a sealing step matched with the fixed sealing plate and the movable sealing plate is further arranged on the sealing block.
Preferably, a sealing groove and a sealing boss which are matched with each other are also arranged between the fixed box and the movable clamping box; and the opposite surfaces of the fixed box and the movable clamping box are also provided with sealing gaskets which are matched with each other.
Preferably, the connecting plate includes fixed plate and clamping piece, be provided with between fixed plate and the clamping piece and be connected boss and the connecting hole of mutually supporting, it is connected with fastening screw still to detain on the boss to connect.
The invention has the beneficial effects that:
1. the device comprises a vacuum pipeline, wherein the vacuum pipeline is divided into two travelling crane channels from the middle by a wind shield, a driving motor and a sealing fan are also arranged in the vacuum pipeline, the shape of the sealing fan is a fan shape matched with the section of a single travelling crane channel, one side of the sealing fan is hermetically connected with the wind shield, the other side of the sealing fan is hermetically connected with a swing rod, the swing rod is in power connection with the driving motor, and a first clamping and sealing device and a second clamping and sealing device are also arranged in the vacuum pipeline, so that the bottom and the top of the sealing fan are completely sealed;
when the sealing door is used, the driving motor is only required to rotate, the swing rod is driven to swing by taking the axis of the rotating shaft of the driving motor as a rotating shaft, so that the sealing fan is unfolded through the swing of the swing rod to seal the section of the whole travelling channel, the area near the rotating shaft of the sealing fan is clamped and sealed through the first clamping and sealing device, and the area between the top of the sealing fan and the vacuum pipeline is clamped and sealed through the second clamping and sealing device, so that the whole sealing section is sealed;
compared with the integral lifting type sealing door in the prior art, the invention ingeniously combines the structural characteristics of a single-pipe double-line vacuum pipeline, arranges the whole set of driving control device in the middle of the vacuum pipeline, and realizes the folding and unfolding of the sealing fan in a swinging mode (the work of the whole set of device is similar to the unfolding and the recovery of the folding fan), on one hand, the driving parts of the whole set of equipment are fewer, the driving mode is relatively single, the control mode of the whole set of equipment can be effectively simplified, the corresponding hardware cost is reduced, the economic benefit is higher, and the reliability and the stability of the whole set of equipment can be effectively improved by the relatively simple structure;
on the other hand, the relatively simple structure can reduce unnecessary components to the maximum extent, so that the structure of the whole set of device is reduced, meanwhile, all the components are arranged in the whole vacuum pipeline through reasonable layout, and the excessive concentration of equipment is avoided;
meanwhile, the equipment occupies a smaller vacuum pipeline space and is not in the whole vacuum pipeline, so that the equipment has little influence on the clearance area of the inner space of the pipeline, namely the size of the blockage ratio is hardly changed, and the dynamic performance of the vehicle can be ensured;
finally, the sealing door is not only suitable for vacuum pipelines of magnetic suspension trains, but also suitable for rail transportation facilities such as train tunnels, subways and the like, is suitable for pipeline modes such as circular pipelines, oval pipelines and the like, and is suitable for occasions such as closed station transfer sections with wind shields and air brake station isolation doors and the like at transverse passages among single pipes and single lines, and has a wide application range.
2. The first clamping and sealing device comprises a fixed box and a movable clamping box, wherein a primary fixed groove and a primary swing groove are arranged along the axis direction of the fixed box, a connecting plate is arranged in the primary fixed groove, a swing rod is arranged in the primary swing groove, and a hydraulic cylinder is also arranged on a support frame;
when the vacuum pipe is used, the fixed box and the support frame are fixed at the bottom of the vacuum pipe, when the vacuum pipe needs to be unfolded, the movable clamping box and the fixed box are in a mutually separated state, so that enough action space is reserved, and the connecting plate and the swing rod are staggered by the primary fixed groove and the primary swing groove which are arranged on the axis in a mutually staggered manner, so that the swing rod is prevented from interfering with the connecting plate in the swing process; after the swing rod drives the sealing fan to be unfolded, the movable clamping box is reset under the action of the hydraulic cylinder, so that the movable clamping box is tightly attached to the fixed box, and the end part of the sealing fan is sealed;
the structure not only meets the sealing requirement of the end part of the sealing fan, but also has simple structure, gradual change of operation, high stability of the equipment, and simple structure which can effectively reduce the structure of the whole device and reduce the occupied space.
Meanwhile, the oscillating bar comprises a connecting rod and an expansion rod which are mutually connected in a sliding manner, the top of the expansion rod is provided with a roller, and the sliding rail is provided with a T-shaped groove matched with the roller, so that on one hand, the moving range of the oscillating bar can be effectively limited through the sliding groove, the axial offset of the oscillating bar due to higher gravity center in the swinging process is avoided, and the unfolding stability of the sealing fan is improved;
on the other hand, when the section of the vacuum pipeline is an oval or other non-circular structure, due to the special structure of the tunnel, when the swing rod is in a vertical state, the length of the swing rod reaches the maximum value, and the length of the swing rod in a horizontal position is the minimum value, so that the telescopic rod is always in a contraction state in the expansion process of the sealing fan, the contraction thrust along the length direction of the telescopic rod can be applied to the telescopic rod through the matching of the T-shaped groove and the roller, and meanwhile, the self gravity of the telescopic rod is combined to realize quick recovery;
in the process of recovering the sealing fan, the telescopic rod is in a stretching state, the stretching tension along the length direction of the telescopic rod can be guaranteed to be applied to the telescopic rod through the matching of the T-shaped groove and the roller, so that the telescopic rod can be guaranteed to stretch out smoothly, the length of the swing rod is guaranteed to be matched with the structure of the vacuum pipeline through the structure, and the application range of equipment is widened;
the swing rod structure is simple, accuracy and reliability of movement of the swing rod are improved, the swing rod structure can be adapted to vacuum pipelines of different specifications, functions can be achieved only through ingenious structural design, extra control equipment does not need to be added, and the size of the swing rod structure can be reduced to the maximum extent.
3. The second clamping and sealing device comprises a sliding track, a fixed sealing plate and a movable sealing plate, wherein the fixed sealing plate and the movable sealing plate are fixedly arranged at the top of the vacuum pipeline, the fixed sealing plate and the movable sealing plate are positioned at two sides of the sliding track, the sliding track is in sliding connection with the vacuum pipeline through a second sliding seat and a second sliding rail, the sliding track can slide back and forth along the axial direction of the vacuum pipeline under the action of a regulating hydraulic cylinder, the top end of a swing rod is positioned in the sliding track, and a first sealing strip and a second sealing strip are respectively arranged on the fixed sealing plate and the movable sealing plate;
when the sealing fan is unfolded, the movable sealing plate is separated from the fixed sealing plate under the action of the adjusting hydraulic cylinder, after the sealing fan is unfolded, the movable sealing plate is reset under the action of the adjusting hydraulic cylinder, wherein the side surface of the first sealing strip is opposite to the side surface of the sealing plate and is positioned at two sides of the sealing fan, and the side surface of the first sealing strip and the side surface of the sealing plate are used for clamping the sector surface of the sealing fan, so that sealing is realized;
above-mentioned simple structure, easy and simple to handle not only can effectively improve the sealed of sealing fan headspace, and stability is high, and its structure and vacuum pipeline's cambered surface adaptation can effectively reduce the space that sealing device took at vacuum pipeline top simultaneously to reduce the harmful effects to vacuum pipeline structure and vehicle operation.
4. The invention also provides at least one secondary swing groove between the primary fixed groove and the primary swing groove, the swing angle of each secondary swing groove is linearly increased along the direction close to the primary swing groove, driven swing rods are also arranged in the secondary swing grooves, and the driven swing rods are sequentially connected with the linkage rods through arc-shaped driving grooves;
on one hand, the structural strength of the middle part of the sealing fan is enhanced through the driven swing rods, so that the phenomenon that the middle part of the sealing fan is excessively expanded or contracted due to severe change of air pressure in the sealing process, the service life of the sealing fan is further influenced, meanwhile, the sealing performance of the top of the sealing fan is also influenced, and the constraint force on the sealing fan is enhanced;
on the other hand, the expansion and the recovery of cutting apart into a plurality of motion processes through driven pendulum rod with whole sealing fan to realize the orderly recovery of sealing fan, reduce the recovery and the expansion degree of difficulty of sealing fan, the sealing fan after retrieving simultaneously is arrange in order more easily, and it not only can improve work efficiency, can also avoid sealing fan to expose in the vacuum pipe, influences the safety of traveling of vehicle.
The end part of the driven swing rod is also provided with an arc-shaped driving groove, the swing rod is provided with a linkage rod matched with the driving groove, the angle of the arc-shaped driving groove is the same as the swing amplitude of the secondary swing groove, the arc-shaped driving groove extends to the movement side of the linkage rod, the linkage rod slides in the arc-shaped driving groove at the initial stage of the movement of the swing rod to relieve the power connection between the swing rod and the driven swing rod, and when the swing rod moves to the tail end of the arc-shaped driving groove, the linkage rod is mutually contacted with the arc-shaped driving groove and mutually abutted to realize the power connection between the swing rod and the driven swing rod, and the swing rod drives the driven swing rod to swing together to realize the unfolding operation of;
the driven swing rod is separated from the driving motor by the structure, and the driven swing rod is indirectly driven by the swing rod; through the ingenious structural arrangement, the linkage of the swing rod and the driven swing rod is realized, meanwhile, the natural separation of the swing rod and the driven swing rod in the motion process is realized, the segmented and orderly expansion of the sealing fan is ensured, the controllability and the orderliness in the expansion process of the whole sealing fan are high, and the reliability and the stability of the whole device are favorably improved; meanwhile, the functions can be realized through the arc-shaped driving grooves and the linkage rods, the structure is extremely simple, the reliability and the stability of movement are guaranteed, and meanwhile, the control equipment is greatly simplified.
5. The sliding track is also provided with a second sliding chute matched with the driven swing rod, so that the movement of the driven swing rod is conveniently controlled and the top of the sealing fan is conveniently sealed; meanwhile, a fixed clamping flange and a movable sealing boss which are used for clamping the sealing fan through mutual engagement are arranged between the first sealing strip and the sealing plate, and the structures of the two clamping bosses are matched with the structure of the sliding track, so that complete sealing at the position of the driven swing rod is ensured, and the sealing capacity of the top of the sealing fan is improved.
6. The connecting plate, the swing rod and the driven swing rod are all provided with clamping plates, the clamping plates are positioned and installed through the connecting bosses and the connecting holes which are matched with each other, and finally the whole device is fastened through fastening bolts; on one hand, the structure is simple, the rapid assembly of the equipment can be ensured, and the reliability of the equipment is improved; on the other hand, the structure is connected with the sealing fan in a clamping mode, so that the contact area between the sealing fan and the sealing fan can be effectively increased, the flatness of the sealing fan is high after the connection is finished, dead corners or wrinkles are prevented from being fixed, air leakage points are avoided, and the sealing performance is improved; meanwhile, the better flatness facilitates coating of the bonding glue, and the connection stability and the sealing performance of the sealing fan can be further improved.
7. According to the invention, the sealing block used for sealing the tail end of the first sliding chute is also arranged in the vacuum pipeline, the sealing slot matched with the swing rod is arranged on the sealing block, the sealing step matched with the fixed sealing plate and the movable sealing plate is also arranged on the sealing block, the sealing performance between the sliding track and the connecting point of the vacuum pipeline can be ensured through the sealing block, and the large-scale air leakage in the isolation process is avoided.
8. In the invention, a sealing groove and a sealing boss which are matched with each other are also arranged between the fixed box and the movable clamping box; and the opposite surfaces of the fixed box and the movable clamping box are also provided with sealing gaskets which are matched with each other, so that the clamping tightness between the fixed box and the movable clamping box can be effectively improved, the large-scale air leakage at the end part of the sealing fan is avoided, and the sealing capacity of the equipment is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first clamping and sealing device according to the present invention;
FIG. 3 is a schematic view of the assembly of a second clamping and sealing device according to the present invention;
FIG. 4 is a schematic view of the assembly of a second clamping and sealing device in accordance with the present invention;
FIG. 5 is a schematic view of a movable sealing plate according to the present invention;
FIG. 6 is a schematic view of a fixed seal plate structure according to the present invention;
FIG. 7 is a schematic view of the structure of the sliding track according to the present invention;
FIG. 8 is an exploded view of the structure of the holding box of the present invention;
FIG. 9 is an exploded view of the movable clamping box of the present invention;
FIG. 10 is a schematic view of a connection plate according to the present invention;
FIG. 11 is a schematic structural view of a driven swing link according to the present invention;
FIG. 12 is an enlarged view of the portion A of FIG. 11;
FIG. 13 is an enlarged view of the portion B of FIG. 11;
FIG. 14 is a schematic view of a pendulum bar structure according to the present invention;
FIG. 15 is an enlarged view of the portion C of FIG. 14;
FIG. 16 is an enlarged view of the portion D of FIG. 14;
FIG. 17 is a schematic view of the sealing block of the present invention;
the labels in the figure are: 1. vacuum pipeline, 2, wind shield, 3, driving motor, 4, sealing fan, 5, swing rod, 6, first clamping sealing device, 7, second clamping sealing device, 8, connecting plate, 9, second slide seat, 10, second slide rail, 11, adjusting hydraulic cylinder, 12, connecting boss, 13, connecting hole, 14, fastening screw, 15, driven swing rod, 16, arc driving groove, 17, linkage rod, 18, sealing block, 19, embankment, 20, permanent magnet rail, 21, limiting rod, 22, limiting hole, 23, buffer spring, 51, connecting rod, 52, telescopic rod, 53, splint, 54, sealing rubber strip, 61, support frame, 62, fixing box, 63, movable clamping box, 64, primary fixing groove, 65, primary swing groove, 66, hydraulic cylinder, 67, secondary swing groove, 68, sealing gasket, 71, sliding rail, 72, fixing sealing plate, 73, movable sealing plate, 81. the sealing device comprises a fixing plate, 82, a clamping piece, 151, a driven connecting rod, 152, a driven telescopic rod, 153, a driven roller, 154, a driven clamping plate, 181, a sealing slot, 182, a sealing step, 521, a roller, 621, a sealing groove, 631, a sealing boss, 711, a first sliding groove, 712, a limiting groove, 713, a second sliding groove, 721, a bottom plate, 722, a first sealing strip, 731, a sealing plate, 732, a second sealing strip, 7221, a fixed clamping flange, 7311 and a movable clamping flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Detailed description of the preferred embodiments
As shown in fig. 1 to 17, the present embodiment provides a single-tube double-line magnetic levitation transportation vacuum pipeline with a sealing door, which includes a vacuum pipeline 1, a wind deflector 2 is fixedly disposed in the middle of the vacuum pipeline 1, an embankment 19 is further disposed in the middle of the vacuum pipeline 1, the bottom of the wind deflector 2 is fixedly connected to the embankment 19, and the top of the wind deflector 2 is completely attached to the vacuum pipeline 1, so that the vacuum pipeline 1 is divided into two mutually independent vehicle channels by the wind deflector 2, and corresponding permanent magnet tracks 20 are disposed at the bottoms of the two vehicle channels;
the vacuum pipeline 1 is also internally provided with a driving motor 3, a sealing fan 4, a swing rod 5, a first clamping and sealing device 6 and a second clamping and sealing device 7, the first clamping and sealing device 6 comprises a fixed box 62, a movable clamping box 63 and a support frame 61, the fixed box 62 and the support frame 61 are both fixed at the bottom of the vacuum pipeline 1 through bolts, and the rear side of the fixed box 62 is embedded into the wind shield 2 and the embankment 19, so that the sealing property of the connection part is ensured; meanwhile, two parallel I-shaped slide rails are arranged at the front end of the fixed box 62, a T-shaped slide seat matched with the I-shaped slide rails is arranged at the bottom of the movable clamping box 63, the movable clamping box 63 is in sliding connection through the matching of the slide seat and the slide rails, 3 hydraulic cylinders 66 distributed in a triangular shape are arranged at the top and two sides of the supporting frame 61, piston rods of the hydraulic cylinders 66 are fixedly connected with the movable clamping box 63, and the movable clamping box 63 is driven to slide through the hydraulic cylinders 66;
a first-stage swing groove 65, a second-stage swing groove 67 and a first-stage fixing groove 64 are sequentially arranged on the end face of one end, opposite to the movable clamping box 63, of the fixed box 62 along the axial direction of the fixed box 62 from outside to inside, the first-stage swing groove 65 and the second-stage swing groove 67 are both in a fan shape, the angle of the first-stage swing groove 65 is 90 degrees, at least one second-stage swing groove 67 is arranged, the specific number of the second-stage swing grooves is determined according to actual engineering requirements, the embodiment and the drawings are described by setting one second-stage swing groove as an example, and a person skilled in the art can correspondingly adjust when the number of the second-stage swing grooves 67 changes according to common knowledge; each secondary swing groove 67 is arranged between the primary fixing groove 64 and the primary swing groove 65 in parallel, and the angle of the secondary swing groove 67 increases linearly along the direction close to the primary swing groove 65, and the increase amplitude is determined by the number of the secondary swing grooves 67; a driven swing rod 15 is arranged in the secondary swing groove 67;
the connecting plate 8 is embedded in the primary fixing groove 64, the connecting plate 8 comprises a fixing plate 81 and a clamping piece 82, a connecting boss 12 and a connecting hole 13 which are matched with each other are arranged between the fixing plate 81 and the clamping piece 82, a fastening screw 14 is further connected to the connecting boss 12 in a threaded manner, and when the sealing fan 4 is installed, a corresponding through hole is formed in the sealing fan 4 and is connected with the connecting boss 12 through the through hole, so that the sealing fan 4 is clamped between the fixing plate 81 and the clamping piece 82, and complete closed connection is achieved through glue brushing; meanwhile, the fixing plate 81 is fixedly connected with the side surface of the wind shield 2 and sealed by glue;
the swing rod 5 is rotatably arranged in the primary swing groove 65, the swing rod comprises a connecting rod 51 and a telescopic rod 52, the connecting rod 51 is of a hollow structure, a driving hole matched with the driving motor 3 is formed in the end part of the connecting rod 51, and the telescopic rod 52 is slidably inserted into the connecting rod 51; meanwhile, a clamping plate 53 is further arranged on the side face of the connecting rod 51, a connecting boss 12 and a connecting hole 13 which are matched with each other are arranged between the connecting rod 51 and the clamping plate 53, a fastening screw 14 is connected to the connecting boss 12 in a threaded manner, and during installation, a corresponding through hole is formed in the sealing fan 4 and is connected with the connecting boss 12 through the through hole, so that the sealing fan 4 is clamped between the connecting rod 51 and the clamping plate 53, and complete closed connection is realized through glue coating; meanwhile, the bottom of the connecting rod 51 is also provided with a sealing rubber strip 54 matched with the appearance of the permanent magnet track 20;
the driven swing rod 15 comprises a driven connecting rod 151 and a driven telescopic rod 152, the driven connecting rod 151 is of a hollow structure, the end part of the driven connecting rod 151 is provided with a unthreaded hole with the inner diameter slightly larger than the outer diameter of the output shaft of the driving motor 3, and the driven telescopic rod 152 is inserted into the driven connecting rod 151 in a sliding manner; meanwhile, a driven clamping plate 154 is further arranged on the side face of the driven connecting rod 151, a connecting boss 12 and a connecting hole 13 which are matched with each other are arranged between the driven connecting rod 151 and the driven clamping plate 154, a fastening screw 14 is connected to the connecting boss 12 in a threaded manner, and during installation, a corresponding through hole is formed in the sealing fan 4 and is connected with the connecting boss 12 through the through hole, so that the sealing fan 4 is clamped between the driven connecting rod 151 and the driven clamping plate 154, and complete closed connection is realized through applying glue;
the driving motor 3 is fixed at the bottom of the vacuum pipeline 1, an output shaft of the driving motor passes through the movable clamping box 63 and is inserted into the primary swing groove 65 and the secondary swing groove 67, and is connected with a driving hole at the bottom of the connecting rod 51 through a connecting key, so that the driving motor 3 drives the swing rod 5 to swing in the primary swing groove 65 by 90 degrees; meanwhile, a transmission shaft of the driving motor 3 is not in contact with the driven swing rod 15, an arc-shaped driving groove 16 is formed in the bottom of the driven connecting rod 151, the angle of the arc-shaped driving groove 16 is equal to the difference between the swing angle of the swing rod 5 and the swing angle of the driven swing rod 15, namely if the rotation angle of the driven swing rod 15 is 45 degrees and the swing angle of the swing rod 5 is 90 degrees, the angle of the driving arc-shaped groove 16 is 45 degrees, and the arc-shaped driving groove 16 and the unthreaded hole are coaxially arranged; the connecting rod 51 and one side opposite to the driven connecting rod 151 are integrally connected with a linkage rod 17, after assembly is completed, the linkage rod 17 is inserted into an arc-shaped driving groove 16, and the arc-shaped driving groove 16 extends towards one rotating side of the linkage rod 17 so as to ensure that the swing rod 5 is in power connection with the driven swing rod 15 after moving for a certain angle;
the end face of the movable clamping box 63 opposite to the fixed box 62 is provided with bosses respectively matched with the primary fixed groove 64, the primary swing groove 65 and the secondary swing groove 67, wherein the number of the bosses matched with the secondary swing groove 67 is the same as that of the secondary swing groove 67, the bosses are respectively embedded into the primary fixed groove 64, the primary swing groove 65 and the corresponding secondary swing groove 67 during clamping, so that the clamping and sealing of the sealing fan 4 are realized, meanwhile, sealing gaskets 68 matched with the respective shapes of the fixed box 62 and the movable clamping box 63 are respectively bonded on the opposite surfaces of the fixed box 62 and the movable clamping box 63, and the sealing gaskets 68 are preferably made of rubber flexible materials; meanwhile, in order to improve the sealing performance, a sealing groove 621 and a sealing boss 631 which are matched with each other are further arranged between the fixed box 62 and the movable clamping box 63, and the sealing groove 621 and the sealing boss 631 are arranged in an L shape;
the second clamping and sealing device 7 comprises a fixed sealing plate 72, a movable sealing plate 73 and a sliding rail 71, wherein the shapes of the fixed sealing plate 72, the movable sealing plate 73 and the sliding rail 71 are all matched with the shape of the vacuum pipeline 1;
during installation, the sliding track 71 is located in the middle, the fixed sealing plate 72 and the movable sealing plate 73 are located on two sides, meanwhile, a first sliding groove 711 and a second sliding groove 713 which are parallel to each other are arranged in the sliding track 71, the first sliding groove 711 and the second sliding groove 713 are both T-shaped grooves, the number of the second sliding grooves 713 is the same as that of the secondary swing grooves 67, and the second sliding grooves 713 respectively correspond to the driven swing rods 15 in the secondary swing grooves 67; the top parts of the telescopic rod 52 and the driven telescopic rod 152 are respectively provided with a roller 521 and a driven roller 153, the roller 521 and the driven roller 153 are respectively inserted into the first sliding groove 711 and the second sliding groove 713, and the bottom parts of the first sliding groove 711 and the second sliding groove 713 are respectively provided with a limiting groove 712 matched with the roller 521 and the driven roller 153; the central angle of the second sliding groove 713 is the same as the swing angle of the driven swing rod 15, so that the second sliding groove is ensured to be adaptive to the driven swing rod 15;
the fixed sealing plate 72 comprises a bottom plate 721 and a first sealing strip 722 which are integrally connected, the first sealing strip 722 is positioned inside the bottom plate 721, the clamping surface of the first sealing strip 722 and the side surface of the bottom plate 721 opposite to the sliding rail 71 are flush with or protrude out of the side surface, wherein a plurality of screw holes are uniformly arranged on the bottom plate 721 and are fixedly connected with the vacuum pipeline 1 through fastening screws in the screw holes;
the movable sealing plate 73 comprises a sealing plate 731 and a second sealing strip 732 which are integrally connected, the second sealing strip 732 is positioned at the top of the sealing plate 731 and divides the top of the sealing plate 731 into two parts, the top surface and the side surface of the sealing plate 731, which are opposite to one side of the sliding rail 71, are both provided with connecting screw holes, wherein the connecting screw holes positioned at the top are connected with a second sliding seat 9, a second sliding rail 10 and an adjusting hydraulic cylinder 11 are fixedly arranged in the vacuum pipeline 1, and the second sliding seat 9 is connected with the second sliding rail 10 in a sliding manner, so that the plate of the movable sealing plate 73 can slide along the axial direction of the vacuum pipeline 1; the telescopic rod of the adjusting hydraulic cylinder 11 is fixedly connected with the connecting screw hole on the side surface; the side surface of the sealing plate 731 on the side opposite to the sliding rail 71 and the side surface of the first sealing strip 722 are clamping surfaces for clamping the sealing fan 4;
due to the cooperation of the second slide carriage 9 and the second slide rail 10, the movable sealing plate 73 will deviate towards the center of the vacuum pipeline 1, and the sealing plate 731 will be separated from the vacuum pipeline 1, so that the gap caused by the deviation is filled and sealed by the second sealing strip 732, thereby ensuring the sealing performance of one side of the movable sealing plate 73;
correspondingly, in order to ensure the clamping and sealing performance and adapt to the shape change of the sliding rail 71, along the expansion direction of the sealing fan 4, the front end of the side surface of the first sealing strip 722 is provided with a fixed clamping flange 7221 protruding outwards, the rear end of the side surface of the sealing plate 731 is provided with a movable clamping flange 7311 protruding outwards, the number of the stages of the movable clamping flange 7311 and the fixed clamping flange 7221 is the same as that of the secondary swing grooves 67, and the fixed clamping flange 7221 and the movable clamping flange 7311 are mutually meshed to realize the clamping and sealing of the sealing fan 4; meanwhile, the end face of the fixed clamp flange 7221 is just closed off the end of the second runner 713 after the assembly is completed, thereby ensuring the airtightness at the end of the second runner 713.
Meanwhile, a sealing block 18 is fixedly arranged at the bottom of the vacuum pipeline 1, and a sealing slot 181 matched with the first sliding groove 711 is arranged on the sealing block 18, so that the oscillating bar 5 can be conveniently inserted into the sealing slot 181 in a sealing manner at the tail end of the movement, and the end part is sealed; meanwhile, sealing steps 182 are further arranged on two sides of the sealing slot 181, and the ends of the fixed sealing plate 72 and the movable sealing plate 73 are tightly attached to the surfaces of the sealing steps 182, so that end sealing is realized.
Further, still evenly be provided with a plurality of sector pendants at the top of sealed fan 4, the one end of sector pendant passes through the connecting pin and links to each other with sealed fan 4 is fixed, and its other end inserts in the spout that corresponds to slide with the spout through the gyro wheel and link to each other, simultaneously the sector pendant uses magnetic material as the best, and the adsorption through magnetic material realizes sealed fan 4's stable recovery and fixed, improves sealed fan's recovery quality.
Furthermore, a limiting rod 21 and a limiting hole 22 which are matched with each other are arranged between the driven connecting rod 151 and the secondary swing groove 67, a buffer spring 23 is sleeved on the limiting rod 21, and the other end of the buffer spring 23 is inserted into the limiting hole 22; the buffer spring 23 is used for buffering the gravity of the driven swing rod 15 in the unfolding process of the sealing fan 4, so that the sealing fan is prevented from falling rapidly under the action of the gravity.
When the sealing fan is unfolded, the hydraulic cylinder controls the movable clamping box to be separated from the fixed box, the adjusting hydraulic cylinder controls the movable sealing plate to be separated from the fixed sealing plate, the driving motor rotates to drive the swing rod to swing in the primary swing groove, meanwhile, the sealing fan is dragged to be unfolded, and the arc-shaped driving groove extends towards one side of the movement of the linkage rod, so that the linkage rod is not contacted with the side wall of the arc-shaped driving groove at the initial movement stage, the driven swing rod and the swing rod are in a mutually separated state at the moment, and the driven swing rod does not move; when the oscillating bar moves to the tail end of the arc-shaped driving groove, the linkage rod is contacted with the side wall of the arc-shaped driving groove, so that the oscillating bar is in power connection with the driven oscillating bar; then the swing rod continues to drag the driven swing rod to complete the unfolding operation of the rest sealing fan, and then the movable clamping box and the movable sealing plate are controlled to reset, so that the clamping and sealing of the whole sealing fan sector can be realized;
when the sealed fan is recovered, firstly, the movable clamping box and the movable sealing plate are controlled to be separated from contact with corresponding parts, then the driving motor is controlled to rotate reversely, the swing rod firstly drives the sealed fan to be recovered, due to the arrangement of the arc-shaped driving groove, the swing rod and the driven swing rod are in a mutually separated state, when the swing rod moves to the other end of the arc-shaped driving groove, the swing rod drives the driven swing rod to move, and then the recovery of the whole sector is realized;
meanwhile, due to the special structure of the tunnel, when the swing rod is in a vertical state, the length of the swing rod reaches the maximum value, the length of the swing rod in a horizontal position is the minimum, in order to ensure the sealing property, the lengths of the connecting rod and the driven connecting rod are slightly smaller than the radial length of a travelling crane channel in the terminal position in the unfolding state, so that the connecting rod and the driven connecting rod are ensured to completely unfold the sealing fan and completely shield the section of the travelling crane channel, and finally, the top of the sealing fan is compensated and sealed through a second clamping and sealing device, so that a gap between the sealing fan and the inner wall;
compared with the integral lifting type sealing door in the prior art, the integral lifting type sealing door skillfully combines the structural characteristics of a single-pipe double-line vacuum pipeline, the whole set of driving control device is arranged in the middle of the vacuum pipeline, and the folding and unfolding of the sealing fan are realized in a swinging mode, so that on one hand, the driving parts of the whole set of equipment are fewer, the driving mode is relatively single, the control mode of the whole set of equipment can be effectively simplified, the corresponding hardware cost is reduced, the economic benefit is higher, and meanwhile, the reliability and the stability of the whole set of equipment can be effectively improved due to the relatively simple structure;
on the other hand, the relatively simple structure can reduce unnecessary components to the maximum extent, so that the structure of the whole set of device is reduced, meanwhile, all the components are arranged in the whole vacuum pipeline through reasonable layout, the equipment is prevented from being excessively concentrated, and the space occupied by the equipment is reduced to the maximum extent;
meanwhile, the equipment occupies a smaller vacuum pipeline space and is not in the whole vacuum pipeline, so that the equipment has little influence on the clearance area of the inner space of the pipeline, namely the size of the blockage ratio is hardly changed, and the dynamic performance of the vehicle can be ensured;
finally, the sealing door is not only suitable for vacuum pipelines of magnetic suspension trains, but also suitable for rail transportation facilities such as train tunnels, subways and the like, is suitable for pipeline modes such as circular pipelines, oval pipelines and the like, and is suitable for occasions such as closed station transfer sections with wind shields and air brake station isolation doors and the like at transverse passages among single pipes and single lines, and has a wide application range.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110535456.8A CN112977487B (en) | 2021-05-17 | 2021-05-17 | A single-pipe double-line maglev traffic vacuum pipeline with a sealed door |
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| CN202110535456.8A CN112977487B (en) | 2021-05-17 | 2021-05-17 | A single-pipe double-line maglev traffic vacuum pipeline with a sealed door |
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| CN112977487A true CN112977487A (en) | 2021-06-18 |
| CN112977487B CN112977487B (en) | 2021-09-28 |
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| CN112977487B (en) | 2021-09-28 |
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