CN111041907A - Movable end telescopic device and telescopic method of movable rail - Google Patents
Movable end telescopic device and telescopic method of movable rail Download PDFInfo
- Publication number
- CN111041907A CN111041907A CN201911237354.7A CN201911237354A CN111041907A CN 111041907 A CN111041907 A CN 111041907A CN 201911237354 A CN201911237354 A CN 201911237354A CN 111041907 A CN111041907 A CN 111041907A
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- movable
- movable frame
- push rod
- track beam
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 7
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000013459 approach Methods 0.000 abstract 1
- 230000007306 turnover Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005339 levitation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/12—Switches; Crossings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/34—Switches; Frogs; Crossings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a movable end telescopic device and a telescopic method of a movable rail which is not contacted with a fixed rail when a rail beam is switched, wherein the movable end telescopic device comprises a movable frame, a connecting seat, a connecting rod, an electric push rod, an upper finger-shaped plate, two side finger-shaped plates and the like, wherein the movable frame is arranged on an inner frame at the end head of the rail beam at the tail end; the connecting seat is arranged below the movable frame and is hinged with the electric push rod through a connecting rod, and the movable frame is pushed and pulled to reciprocate along the tail end track beam through the telescopic motion of the electric push rod; the length design of the movable end takes the factors of space required by turnout switching, temperature expansion and contraction of the track beam, safety distance and the like into consideration, and the sufficient safety distance is ensured when the track beam is switched; two proximity switches are arranged on the movable frame, and when the distance between the movable frame and a track beam connected with the movable track approaches to a set distance in the process of in-place locking of the movable track switch, the proximity switch I acts, and the electric push rod stops; in the locking and opening process of the movable rail, when the electric push rod pulls the movable frame to contract to a set position, the proximity switch II acts, and the electric push rod stops.
Description
Technical Field
The invention relates to a movable end telescopic device and a telescopic method of a movable rail, wherein a movable frame is contracted into a rail beam before the rail is switched, the rail beam is not contacted with a fixed rail during switching, no impact or collision noise is generated, no noise pollution is generated to the surrounding environment, the gap at the joint of the rail is small and fixed, and the ride comfort of a vehicle is improved, belonging to the field of manufacturing of movable rail end telescopic devices.
Background
The joint type track is used as a main structural form of novel track traffic line switching and is generally applied to a switching system of straddle type monorail traffic and medium-low speed magnetic levitation track traffic. The joint-type track is formed by connecting a plurality of sections of linear track beams in series, and the tail end of the movable end track beam needs a certain safety distance to ensure that the movable end track beam does not interfere and collide with the fixed track when the joint-type track is switched; meanwhile, due to the large linear size of the joint-type track, expansion caused by heat and contraction caused by cold are generated under the influence of temperature, so that the gap of the movable end is in a changing state all the year round. The movable end of the existing joint type track is provided with a tooth-shaped turnover plate structure. When the track is switched, the turnover plate is driven to rotate, and the turnover plate and the fixed plate are lifted through the friction of the inclined surface, so that the turnover plate passes through and returns, and the defects of high impact noise, nonadjustable gap between the movable track and the fixed track, overlong lap joint length and the like are overcome. As shown in fig. 3.
Disclosure of Invention
The design purpose is as follows: the movable end telescopic device and the telescopic method of the movable rail avoid the defects in the prior art, the movable frame is contracted into the rail beam before the rail is switched, the rail beam is not contacted with a fixed rail during switching, no impact or collision noise is generated, no noise pollution is generated to the surrounding environment, the gap at the joint of the rail is small and fixed, and the smoothness of passing the rail is improved.
The design scheme is as follows: in order to achieve the above design objectives. According to the invention, by designing a new movable end telescopic device, collision impact noise can be eliminated, so that the gap between the movable rail and the fixed rail cannot be changed along with temperature change, the gap between the movable rail and the fixed rail is fixed to a size which can enable a vehicle to stably and smoothly pass through, and no lap joint is arranged between the movable rail and the fixed rail, so that the connection of the combination of the toothed plates is more compact; the designed movable end telescopic device can be suitable for the movable end design of various joint type rails, and has the advantages of reducing noise, improving the smoothness of passing vehicles, along with wide application range and the like.
In terms of structural design: 1) the movable end device is arranged at the tail end of the joint-type track and consists of a movable frame, a connecting seat, a connecting rod, an electric push rod, an upper cover plate combined finger-shaped plate, two side web plate combined finger-shaped plates, a connecting pin shaft, a bolt and other parts, wherein the movable frame is arranged in an inner frame of a movable end of a tail end track beam; 2) a rectangular hole is designed on the lower bottom plate of the track beam and used for installing the connecting seat below the bottom plate of the movable frame and reserving necessary front-back reciprocating motion distance for the connecting seat; 3) the electric push rod, the connecting seat and the movable frame are hinged into a whole through the pin shaft in sequence; 4) the upper cover plate of the track beam and the upper cover plate of the movable frame are provided with upper cover plate combined finger-shaped plates which can be mutually meshed, and web plate combined finger-shaped plates which can be mutually meshed are arranged on web plates on two sides of the track beam and web plates on two sides of the movable frame; 5) two limit switches are arranged on the movable frame. 6) The telescopic length of the movable end is the space required by the switch of the turnout, the telescopic change value of the track beam affected by the temperature, the safe distance and other factors, and the use safety is ensured.
In the design of the telescopic method: 1) when the electric push rod extends, the movable frame is pushed forwards through the connecting rod and the connecting seat; when the movable frame moves to a fixed rail butted with the movable rail to a set distance (for example, 5 mm), the limit switch arranged below the movable frame collides with the limit collision block arranged on the fixed rail, the electric push rod stops moving, and the movable rail is butted with the fixed rail at the moment; 2) when the electric push rod is contracted, the movable frame is pulled back through the connecting rod and the connecting seat; when the movable frame moves and retracts to a set position, the limit switch arranged below the movable frame collides with the limit collision block arranged below the movable track beam, the electric push rod stops moving, and the movable track is separated from the fixed track; 3) the upper cover plate combined finger-shaped plates which are arranged on the upper cover plate of the track beam and the upper cover plate of the movable frame and can be meshed with each other, and the web plate combined finger-shaped plates which are arranged on the webs on the two sides of the track beam and the webs on the two sides of the movable frame and can be meshed with each other, when the tooth length of the finger-shaped plates is enough to ensure that the movable frame moves outwards to the farthest position, a certain meshing length is still left between the front tooth-shaped plate and the rear tooth-shaped plate, and the wheels of a vehicle can smoothly pass through the top surface of the. 4) The proper type and motion parameters of the electric push rod are selected, the position of the movable frame is locked by the axial thrust which can be provided after the electric push rod stops moving, and the instant friction torque of the axial vehicle borne by the movable frame when the vehicle passes through is overcome.
The technical scheme is as follows: a movable end telescopic device of a movable rail is characterized in that a movable frame is arranged on an inner frame of a movable end at the tail end of a movable rail beam, an electric push rod, a connecting seat and a limiting collision block I are arranged on the movable rail beam, a rectangular hole is designed on a lower bottom plate of the movable rail beam and used for installing the connecting seat below the bottom plate of the movable frame and reserving a necessary front-back reciprocating motion distance for the connecting seat; the end part of a push rod of the electric push rod is hinged with one end of a connecting rod through a pin shaft, the other end of the connecting rod is connected with a connecting seat, the connecting seat penetrates through a rectangular hole in a bottom plate of the movable track beam to be connected with the movable frame, and the electric push rod enables the movable frame to generate two motions of extending and retracting relative to the movable track beam through two motions of pushing and pulling; a bracket for mounting limit switches is designed on the connecting seat, the two limit switches are mounted on the bracket, a limit collision block I is arranged on a movable track beam bottom plate, and a limit collision block II is arranged on the bottom surface of a fixed track beam; when the movable frame contracts to the position limit switch I to collide with the position limit collision block I, the electric push rod stops withdrawing; when the movable frame extends to the limit switch II to collide with the limit collision block II, the electric push rod stops extending.
Compared with the prior art, the movable end telescopic device is quiet and noiseless when the track is switched and the line is changed, and compared with a turnover plate type movable end structure, the movable frame is contracted into the track beam before the track is switched, so that the track beam is not contacted with a fixed track during switching, impact or collision noise is avoided, and noise pollution is not caused to the surrounding environment; secondly, the gap at the joint of the track is small and fixed, and the smoothness of passing the vehicle is improved; thirdly, the extension of the movable end telescopic device is controlled by a limit switch arranged below the movable frame and a limit collision block arranged below the fixed track; when the temperature is lower, the joint track beam is contracted and then shortened, or when the temperature is higher, the joint track beam is expanded and then lengthened (the extension or shortening of the joint track beam along with the change of the environmental temperature is particularly obvious when the length of the track beam is larger), the movement stopping position of the movable frame is controlled by a limit switch arranged below the movable frame and a limit collision block arranged below the fixed track, the gap between the movable frame and the fixed track is fixed, the gap is always kept at the initially set value and cannot be changed along with the change of the environmental temperature, therefore, when a vehicle passes through, wheels can pass through the initially set smaller gap, and the smoothness of passing through the vehicle is improved.
Drawings
FIG. 1 is a schematic view of the structure of a movable end telescopic device of a movable rail (a movable frame is retracted into a movable rail beam, a limit switch collides with a limit collision block I), wherein 1-the movable rail beam 2-an electric push rod 3-a pin shaft 4-a connecting rod 5-a two-side web plate combined finger-shaped plate 6-a limit collision block I7-a movable frame 8-an upper cover plate combined finger-shaped plate 9-a limit switch 10-a limit collision block II 11-a fixed rail 12-a connecting seat
FIG. 2 is a schematic diagram of the movable frame extending out of the movable track beam and the limit switch colliding with the limit collision block II of the fixed track.
Fig. 3 is a schematic structural diagram of the background art.
Detailed Description
Example 1: reference is made to figures 1 and 2. A movable end telescoping device of a movable track, a movable frame 7 is arranged in an inner frame of a movable end at the tail end of a movable track beam 1, an electric push rod 2, a connecting seat 12 and a limiting collision block I6 are arranged on the movable track beam 1, a rectangular hole is designed on a lower bottom plate of the movable track beam 1 and used for installing the connecting seat 12 below the bottom plate of the movable frame 7 and reserving a necessary front-back reciprocating motion distance for the connecting seat 12; the end part of a push rod of the electric push rod 2 is hinged with one end of a connecting rod 4 through a pin shaft 3, the other end of the connecting rod 4 is connected with a connecting seat 12, the connecting seat 12 penetrates through a rectangular hole on a bottom plate of the movable track beam 1 to be connected with the movable frame 7, and the electric push rod 2 moves through pushing and pulling to enable the movable frame 7 to move out and back relative to the movable track beam 1; a bracket for mounting the limit switches 9 is designed on the connecting seat 12, the two limit switches 9 are mounted on the bracket, the limit collision block I6 is arranged on the bottom plate of the movable track beam, and the limit collision block II 10 is arranged on the bottom surface of the fixed track beam 11; when the movable frame 7 contracts until the limit switch I collides with the limit collision block I, the electric push rod stops withdrawing; when the movable frame extends to the limit switch II to collide with the limit collision block II 10, the electric push rod stops extending. The electric push rod 2, the connecting rod 4, the connecting seat 12 and the movable frame 7 are hinged into a whole through pin shafts in sequence.
The length of the teeth of the finger-shaped plates in the upper cover plate combined finger-shaped plate 8 and the two side web plate combined finger-shaped plates 5 is enough to ensure that a certain meshing length is still left between the front and rear tooth-shaped plates when the movable frame 7 moves outwards to the farthest position, so that the wheels of the vehicle can smoothly pass through the top surface of the rail and the guide wheels can smoothly pass through the rail web plate. The upper cover plate combination finger plate 8 means that the upper cover plate of the track beam and the upper cover plate of the movable frame can be mutually meshed. The two-side web plate combined finger-type plate 5 means that the two-side web plates of the track beam are mutually meshed with the two-side web plates of the movable frame; when the movable frame extends out or retracts, the vehicle running wheels and the guide wheels can be ensured to smoothly pass through the connecting joint of the movable track beam and the fixed track.
The telescopic length of the movable frame 7 is obtained by adding the values of factors such as the space required by the switching of the movable track, the telescopic change value of the track beam influenced by the temperature and the safe distance, so that the movable track beam is ensured not to interfere with the fixed track to collide when being switched by using the safe movable track beam.
Example 2: on the basis of the embodiment 1, (1) the movable end device is arranged and installed at the tail end of the movable track, the movable frame is installed on an inner frame of a movable end head of the track beam, and a rectangular hole is designed on a lower bottom plate of the track beam and used for installing the connecting seat below the bottom plate of the movable frame and reserving a necessary front-back reciprocating motion distance for the connecting seat; (2) the electric push rod is arranged on the mounting seat on the bottom surface of the movable track beam and is connected with the connecting seat through the connecting rod, and the electric push rod, the connecting rod and the connecting seat are hinged through the pin shaft in sequence; the connecting seat passes through a rectangular hole on the bottom plate of the movable track beam and is connected with the movable frame by a bolt; the electric push rod enables the movable frame to extend and retract relative to the movable rail through two actions of pushing and pulling; (3) a bracket for mounting limit switches is designed on the connecting seat, the two limit switches are mounted on the bracket, the limit collision block 1 is arranged on the bottom plate of the movable track beam, and the limit collision block 2 is arranged on the bottom surface of the fixed track; when the movable frame contracts to the extent that the limit switch 1 collides with the limit collision block 1, the electric push rod stops withdrawing; when the movable frame extends to the limit switch 2 to collide with the limit collision block 2, the electric push rod stops extending; (4) the upper cover plate of the track beam and the upper cover plate of the movable frame are provided with upper cover plate combined finger-shaped plates which can be mutually meshed, and web plate combined finger-shaped plates which can be mutually meshed are arranged on web plates on two sides of the track beam and web plates on two sides of the movable frame; when the movable frame extends out or retracts, the vehicle running wheels and the guide wheels can be ensured to smoothly pass through the connecting joint of the movable track beam and the fixed track; (5) the telescopic length of the movable frame is obtained by adding the values of factors such as the space required by the switching of the movable track, the telescopic change value of the track beam influenced by the temperature and the safe distance, so that the movable track beam is ensured not to interfere with the fixed track and further collide when being switched by using the safe movable track beam.
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (7)
1. A movable end telescopic device of a movable track is characterized in that: the movable frame (7) is arranged in an inner frame of a movable end at the tail end of the movable track beam (1), the electric push rod (2), the connecting seat (12) and the limiting collision block I (6) are arranged on the movable track beam (1), and a rectangular hole is designed on a lower bottom plate of the movable track beam (1) and used for installing the connecting seat (12) below the bottom plate of the movable frame (7) and reserving a necessary front-back reciprocating motion distance for the connecting seat (12); the end part of a push rod of the electric push rod (2) is hinged with one end of a connecting rod (4) through a pin shaft (3), the other end of the connecting rod (4) is connected with a connecting seat (12), the connecting seat (12) penetrates through a rectangular hole in a bottom plate of the movable track beam (1) to be connected with the movable frame (7), and the electric push rod (2) enables the movable frame (7) to generate two motions of extending and retracting relative to the movable track beam (1) through two actions of pushing and pulling; two limit switches (9) are arranged on the connecting seat (12), a limit collision block I (6) is arranged on a bottom plate of the movable track beam (1), and a limit collision block II (10) is arranged on the bottom surface of the fixed track beam (11); when the movable frame (7) is contracted until the limit switch I collides with the limit collision block I, the electric push rod stops withdrawing; when the movable frame extends to the limit switch II to collide with the limit collision block II (10), the electric push rod stops extending.
2. The movable end telescopic device of a movable rail according to claim 1, wherein: the tooth length of the middle finger plates of the upper cover plate combined finger plate (8) and the two side web plate combined finger plates (5) is enough to ensure that a certain meshing length is still left between the front and rear tooth plates when the movable frame (7) moves outwards to the farthest position, so that the wheels of the vehicle can smoothly pass through the top surface of the rail and the guide wheels of the vehicle can smoothly pass through the web plate of the rail.
3. The movable end telescopic device of a movable rail according to claim 2, wherein: the upper cover plate combined finger-type plate (8) means that the upper cover plate of the track beam and the upper cover plate of the movable frame can be mutually meshed.
4. The movable end telescopic device of a movable rail according to claim 2, wherein: the two-side web plate combined finger-type plate (5) means that the two-side web plates of the track beam are mutually meshed with the two-side web plates of the movable frame; when the movable frame extends out or retracts, the vehicle running wheels and the guide wheels can be ensured to smoothly pass through the connecting joint of the movable track beam and the fixed track.
5. The movable end telescopic device of a movable rail according to claim 1, wherein: the telescopic length of the movable frame (7) is obtained by accumulating the values of factors such as the space required by the switching of the movable track, the telescopic change value of the track beam influenced by the temperature and the safety distance, so that the movable track beam is ensured not to interfere with the fixed track to collide when being switched by using the safety movable track beam.
6. The movable end telescopic device of a movable rail according to claim 1, wherein: the electric push rod (2), the connecting rod (4), the connecting seat (12) and the movable frame (7) are hinged into a whole through the pin shaft in sequence.
7. A method for extending and retracting a movable end extending and retracting device of a movable track is characterized in that: (1) when the electric push rod extends, the movable frame is pushed forwards through the connecting rod and the connecting seat; when the movable frame moves to a fixed rail butted with the movable rail to a set distance, the limit switch arranged below the movable frame collides with the limit collision block arranged on the fixed rail, the electric push rod stops moving, and the movable rail is butted with the fixed rail at the moment;
(2) when the electric push rod is contracted, the movable frame is pulled back through the connecting rod and the connecting seat; when the movable frame moves and retracts to a set position, the limit switch arranged below the movable frame collides with the limit collision block arranged below the movable track beam, the electric push rod stops moving, and the movable track is separated from the fixed track;
(3) the upper cover plate combined finger-shaped plates which are arranged on the upper cover plate of the track beam and the upper cover plate of the movable frame and can be meshed with each other, and the web plate combined finger-shaped plates which are arranged on the webs on the two sides of the track beam and the webs on the two sides of the movable frame and can be meshed with each other, when the tooth length of the finger-shaped plates is enough to ensure that the movable frame moves outwards to the farthest position, a certain meshing length is still left between the front tooth-shaped plate and the rear tooth-shaped plate, and the wheels of a vehicle can smoothly pass through the top surface of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237354.7A CN111041907A (en) | 2019-12-06 | 2019-12-06 | Movable end telescopic device and telescopic method of movable rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237354.7A CN111041907A (en) | 2019-12-06 | 2019-12-06 | Movable end telescopic device and telescopic method of movable rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111041907A true CN111041907A (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911237354.7A Pending CN111041907A (en) | 2019-12-06 | 2019-12-06 | Movable end telescopic device and telescopic method of movable rail |
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| Country | Link |
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| CN (1) | CN111041907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618038A (en) * | 2020-04-22 | 2020-09-04 | 河南中烟工业有限责任公司 | Reciprocating type automatic cleaning device and cut-tobacco drier |
| CN115287950A (en) * | 2022-10-08 | 2022-11-04 | 成都西交华创科技有限公司 | Translation type turnout beam of high-temperature superconducting magnetic suspension and translation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH263176A (en) * | 1944-08-12 | 1949-08-15 | Westinghouse Freins & Signaux | Electric railroad switch control unit. |
| CN102409583A (en) * | 2011-08-20 | 2012-04-11 | 中铁宝桥集团有限公司 | Medium- and low-speed magnetic suspension turnout locking device |
| CN205917534U (en) * | 2016-08-24 | 2017-02-01 | 衢州市帝彦商贸有限公司 | Switch based on urban rail transit |
| WO2017101765A1 (en) * | 2015-12-15 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Connection apparatus used between active beam and buttress beam of turnout |
| CN109131368A (en) * | 2017-06-16 | 2019-01-04 | 中铁宝桥集团有限公司 | A kind of suspended vehicle parallel-moving type lane changing equipment and thread-changing method |
| CN109910946A (en) * | 2017-12-13 | 2019-06-21 | 成都唐源电气股份有限公司 | A kind of straddle-type monorail detection vehicle localization method and device |
| CN212452121U (en) * | 2019-12-06 | 2021-02-02 | 中铁宝桥集团有限公司 | Movable end expansion device of movable track |
-
2019
- 2019-12-06 CN CN201911237354.7A patent/CN111041907A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH263176A (en) * | 1944-08-12 | 1949-08-15 | Westinghouse Freins & Signaux | Electric railroad switch control unit. |
| CN102409583A (en) * | 2011-08-20 | 2012-04-11 | 中铁宝桥集团有限公司 | Medium- and low-speed magnetic suspension turnout locking device |
| WO2017101765A1 (en) * | 2015-12-15 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Connection apparatus used between active beam and buttress beam of turnout |
| CN205917534U (en) * | 2016-08-24 | 2017-02-01 | 衢州市帝彦商贸有限公司 | Switch based on urban rail transit |
| CN109131368A (en) * | 2017-06-16 | 2019-01-04 | 中铁宝桥集团有限公司 | A kind of suspended vehicle parallel-moving type lane changing equipment and thread-changing method |
| CN109910946A (en) * | 2017-12-13 | 2019-06-21 | 成都唐源电气股份有限公司 | A kind of straddle-type monorail detection vehicle localization method and device |
| CN212452121U (en) * | 2019-12-06 | 2021-02-02 | 中铁宝桥集团有限公司 | Movable end expansion device of movable track |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618038A (en) * | 2020-04-22 | 2020-09-04 | 河南中烟工业有限责任公司 | Reciprocating type automatic cleaning device and cut-tobacco drier |
| CN115287950A (en) * | 2022-10-08 | 2022-11-04 | 成都西交华创科技有限公司 | Translation type turnout beam of high-temperature superconducting magnetic suspension and translation method |
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