CN115016558A - Turnout beam, high-speed magnetic suspension turnout and switching control method - Google Patents

Abstract

The invention provides a turnout beam, which comprises a plurality of sections of beam body units which are sequentially connected, wherein each beam body unit comprises a box-shaped beam, inner-side transverse rib plates and side assemblies, a plurality of inner-side transverse rib plates and a plurality of sections of side assemblies are arranged on two sides of the box-shaped beam at intervals along the length direction, and the inner-side transverse rib plates and the side assemblies on two sides of the box-shaped beam are symmetrically arranged; the length direction of the side edge assembly is parallel to the length direction of the box-shaped beam, the single side edge assembly is connected with the plurality of corresponding inner side transverse rib plates, and the upper top surface of the side edge assembly is flush with the upper top surface of the box-shaped beam. Compared with the existing turnout beam, the turnout beam structure of the invention can effectively reduce the driving force required during linear switching. The invention also provides a high-speed magnetic suspension turnout and a switching control method thereof, wherein the switching time is less than or equal to 24s, the error of lateral linear precision is 2mm, the linear length is within/full line, the linear fitting precision is not lower than that of the conventional eight-trolley arrangement scheme, and the driving force is far less than that of the three-trolley arrangement scheme.

Description

Turnout beam, high-speed magnetic suspension turnout and switching control method

Technical Field

The invention relates to the technical field of rail transit, in particular to a turnout beam, a high-speed magnetic suspension turnout and a switching control method.

Background

The lateral low-speed high-speed magnetic suspension turnout is used for stations, vehicle bases and the like, belongs to line infrastructure, and has direct influence on the safety and stability of train operation and the comfort of passengers due to the structure and the state of the turnout.

In the prior art, a trolley is generally adopted to drive a turnout beam to generate elastic deformation to switch between a forward line and a lateral line, so that switching is realized. Therefore, the structural form of the turnout beam is important for the difficulty of elastic deformation of the turnout beam, the driving force required by the switch is larger when the rigidity of the turnout beam is larger, and the driving force required by the switch is smaller when the rigidity of the turnout beam is larger; reducing the rigidity of the switch beam is indeed convenient for driving the switch of the switch beam, but it will also cause the structural strength of the switch beam to be out of specification, so how to reduce the driving force required by the switch of the switch beam and ensure the rigidity required by the operation of the switch beam is one of the important research points of the switch beam.

In addition, for a magnetic suspension turnout, the arrangement scheme of the trolleys and the selection of the line type of the lateral line are also one of the key points of the current research, and the patent application with the application number of CN202010336070.X and the patent application with the application number of CN202010336084.1 both disclose related technical schemes, wherein the former discloses a scheme for arranging eight trolleys to realize switching, and the latter discloses a scheme for arranging three trolleys to realize switching. For a turnout, the more trolleys are arranged, the higher the fitting precision of the line type is determined, but the problems of increased difficulty in cooperative control among the trolleys and high arrangement cost are caused; if the number of trolleys is reduced, the driving force required for switching is large, and the fitting accuracy of the line pattern is also reduced, although the problem of difficulty in control is solved. Therefore, the arrangement scheme of the driving trolley is also important for the magnetic suspension turnout.

In summary, there is a need for a turnout beam, a high-speed magnetic suspension turnout and a switching control method to solve the problems in the prior art.

Disclosure of Invention

The invention aims to provide a turnout beam, aiming at reducing the driving force required by the turnout beam switching, and the specific technical scheme is as follows:

a turnout beam comprises a plurality of beam body units which are sequentially connected, wherein each beam body unit comprises a box beam, inner side transverse rib plates and side assemblies, a plurality of inner side transverse rib plates and a plurality of sections of side assemblies are arranged on two sides of the box beam at intervals along the length direction, and the inner side transverse rib plates and the side assemblies on the two sides of the box beam are symmetrically arranged; the length direction of the side edge assembly is parallel to the length direction of the box-shaped beam, the single side edge assembly is connected with the plurality of corresponding inner side transverse rib plates, and the upper top surface of the side edge assembly is flush with the upper top surface of the box-shaped beam.

Preferably, in the above technical scheme, the box beam is composed of an upper cover plate, a lower cover plate and two webs; a plurality of first protruding plates are arranged on two sides of the upper cover plate at intervals along the length direction, and the first protruding plates on the two sides of the upper cover plate are symmetrically arranged; a first notch is formed between every two adjacent first protruding plates in the length direction;

the side edge assembly comprises a functional assembly and a side edge plate arranged on the inner side transverse rib plate, the upper top surface of the side edge plate is flush with the upper top surface of the upper cover plate, and the functional assembly is arranged on the side edge plate; one side of the side edge plate, which is close to the upper cover plate, is provided with at least one second notch, the part of the side, except the second notch, extends into the first notch, and the first protruding plate extends into the second notch.

Preferably, in the above technical scheme, the side plate includes a main body plate and a plurality of second protruding plates arranged on one side of the main body plate and arranged along the length direction of the main body plate, a gap is left between the two adjacent protruding plates, the main body plate is arranged on the inner lateral rib plate, and the notch is located on one side of the second protruding plate away from the main body plate.

Preferably, in the above technical scheme, the functional assembly includes a connecting plate, lateral transverse rib plates, a pi-shaped plate, a lateral guide plate and a skid plate, the connecting plate and the lateral guide plate are arranged in parallel, and a plurality of lateral transverse rib plates are connected therebetween, the connecting plate, the lateral guide plate and the lateral transverse rib plates are all connected with the bottom surface of the main body plate, one side of the connecting plate, which is far away from the lateral guide plate, is connected with the outer side surface of the lateral transverse rib plate, and the pi-shaped plate is connected with the bottom surface of the connecting plate and/or the bottom surface of the lateral transverse rib plate; the top surface of main part board is equipped with the skid board, and the length direction of main part board is parallel with the length direction of skid board.

Preferably, at least one support is arranged on each of two sides of the beam body unit, and the supports on the two sides of the beam body unit are symmetrically arranged.

Preferably, in the above technical scheme, the adjacent beam body units are connected through the lap plate; and an overlap joint shield is also arranged at the overlap joint between the two lower cover plates between the adjacent beam body units.

Preferably, in the above technical solution, the length of each side assembly is the same; or the length of the side assembly is gradually reduced from the two ends of the beam body unit to the middle direction; alternatively, the side members may be tapered along the length of the beam unit.

According to the turnout beam, the side edge components are laid along the box-shaped beam in sections, the structural form that the upper cover plate is matched with the side edge plate in a concave-convex mode is adopted, the upper top surfaces of the side edge plate and the upper cover plate can be guaranteed to be a flat surface, and meanwhile the structural form of the side edge plate can also reduce the rigidity of the side edge plate. When the line types are switched, only a driving force needs to be provided to enable the box type beam to be elastically deformed, and because a gap is reserved between adjacent side assemblies and the structural form of the side plates (interference generated during line type switching is prevented), the side assemblies basically have no resistance to line type switching.

The invention also provides a high-speed magnetic suspension turnout, wherein a lateral line of the turnout is a first convolution curve, a circular curve and a second convolution curve which are sequentially connected from the starting end to the tail end; the turnout comprises the turnout beam, and a 0# trolley, a 1# trolley, a 2# trolley, a 3# trolley, a 4# trolley and a 5# trolley which are sequentially arranged along the length direction of the turnout beam, wherein the 0# trolley is a fixed trolley, the 1# trolley, the 4# trolley and the 5# trolley are driving trolleys, and the 2# trolley and the 3# trolley are driven trolleys; the 0# trolley is arranged at the left end point of the first clothoid, the 1# trolley is arranged at the conversion point of the first clothoid and the circular curve, the 2# trolley and the 3# trolley are arranged in the circular curve, the 4# trolley is arranged at the conversion point of the circular curve and the second clothoid, and the 5# trolley is arranged at the right end point of the second clothoid.

The invention also provides a switching control method of the high-speed magnetic suspension turnout, which comprises the following steps:

the control steps of the forward line to the lateral line are as follows:

step A1: the driving motors of the 1# trolley, the 4# trolley and the 5# trolley run at the same angular speed, and the 1# trolley is moved in place and applied with parking brake;

step A2: the driving motors of the 4# trolley and the 5# trolley continuously run at the same angular speed, and the 4# trolley is applied with parking brake after moving in place;

step A3: the driving motor of the 5# trolley continues to move at a rated rotating speed, and after the driving motor moves in place, parking brake is applied to the 5# trolley, and switching is completed;

the control steps of the lateral line to the positive line are as follows:

step B1: the driving motor of the 5# trolley runs at a rated rotating speed, and when the included angle between the 5# trolley and the 4# trolley is 0, the driving motor of the 4# trolley starts to run;

step B2: the 5# trolley and the 4# trolley run at the same angular speed, and when the included angle between the 2# trolley and the 1# trolley is 0, the driving motor of the 1# trolley starts to run;

step B3: and (3) continuously operating the driving motors of the 1# trolley, the 4# trolley and the 5# trolley at the same angular speed, and applying parking brakes when the 1# trolley, the 4# trolley and the 5# trolley move to the stop positions of the positive lines respectively to complete switching.

In the above technical solution, preferably, in the steps a1 and B3, when the 1# carriage, the 4# carriage, and the 5# carriage are operating, the speed and the position signal of the 1# carriage, the 4# carriage, and the 5# carriage are synchronously fed back to the control unit based on the position and the speed of the 5# carriage, and the control unit controls the rotation speed of the driving motor of the 1# carriage, the 4# carriage, and the 5# carriage, respectively, according to the obtained deviation of the speed and the position;

in step a2, when the 4# carriage and the 5# carriage are operating, the speed and the position signal of the 4# carriage and the 5# carriage are synchronously fed back to the control unit based on the position and the speed of the 5# carriage, and the control unit controls the rotation speed of the driving motor of the 4# carriage and the 5# carriage respectively based on the obtained speed and the obtained position deviation.

The turnout adopts the turnout beam capable of reducing the required driving force, and the first convolution curve, the circular curve and the second convolution curve to fit the lateral line, and the arrangement scheme and the switching control method of the 1# -5# trolley are matched, so that the switching time is less than or equal to 24s, and the accuracy error of the lateral line is within 2 mm/the full line length; after the turnout structure is analyzed in terms of geometric and dynamic characteristics, the requirements of a lateral low-speed high-speed turnout specified in the high-speed magnetic levitation turnout standard that the lateral passing speed is 98km/h and the straight line passing speed is 600km/h are met; through iterative simulation calculation and analysis of driving point arrangement, the linear precision of the arrangement scheme of the invention is not lower than that of the existing eight-trolley arrangement scheme, and the driving force is far less than that of the three-trolley arrangement scheme.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a turnout beam from a first perspective;

FIG. 2 is a schematic view of the construction of a turnout beam from a second perspective;

FIG. 3 is a schematic structural view of the upper cover plate;

FIG. 4 is a schematic view of the construction of the side panel;

FIG. 5 is a schematic view of the lap joint between adjacent beam body units;

FIG. 6 is a schematic structural diagram of a high-speed magnetic levitation turnout;

FIG. 7 is a schematic view of the construction of a stacking beam;

FIG. 8 is a schematic line drawing of a switch;

the turnout comprises a turnout beam 1, a turnout beam 2, a trolley 0# 3, a trolley 1# 4, a trolley 2# 5, a trolley 3# 6, a trolley 4# 7, a trolley 5# 8, a pile beam 9 and a base platform;

1.1, an upper cover plate, 1.1.1, a first protruding plate, 1.1.2, a first notch, 1.2, a lower cover plate, 1.3, a web plate, 1.4, a side edge plate, 1.4.1, a main body plate, 1.4.2, a second protruding plate, 1.4.3, a second notch, 1.5, an inner side transverse rib plate, 1.6, a connecting plate, 1.7, an outer side transverse rib plate, 1.8, a pi-shaped plate, 1.9, a side guide plate, 1.10, a skid plate, 1.11, a support, 1.12, a locking plate, 1.13 a lap plate, 1.14 and a lap shield;

8.1, guide rollers.

Detailed Description

In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1:

as shown in fig. 1-5, a turnout beam, in particular to a magnetic levitation turnout beam, which comprises a plurality of sections of beam body units connected in sequence, wherein each beam body unit comprises a box beam, inner lateral rib plates 1.5 and side assemblies, a plurality of inner lateral rib plates 1.5 and a plurality of sections of side assemblies (the spacing distance between adjacent inner lateral rib plates is different from the spacing distance between adjacent side assemblies) are arranged at intervals along the length direction on both sides of the box beam, and the inner lateral rib plates 1.5 and the side assemblies on both sides of the box beam are symmetrically arranged; the length direction of the side edge assemblies is parallel to the length direction of the box-type beam, a single side edge assembly is connected with a plurality of corresponding inner transverse rib plates 1.5, gaps (the gaps are spacing distances) are reserved between the adjacent side edge assemblies, and the upper top surfaces of the side edge assemblies are flush with the upper top surface of the box-type beam.

Furthermore, the box girder consists of an upper cover plate 1.1, a lower cover plate 1.2 and two webs 1.3, wherein the upper cover plate and the lower cover plate are oppositely arranged in front, and the webs are respectively connected to two sides of the upper cover plate and the lower cover plate. The box-shaped beam is a rectangular box-shaped beam, wherein the long side of the rectangle is parallel to the height direction of the turnout beam, and the short side of the rectangle is perpendicular to the length direction of the turnout beam, so that the cross-sectional area of deformation of the turnout beam during switching is smaller, and the rigidity of the turnout beam is ensured to meet the requirement. The switch roof beam in this embodiment, only need provide drive power when switching the line type make the box girder take place elastic deformation can, the side subassembly is owing to set up on inboard horizontal gusset and leave the clearance between the adjacent side subassembly (prevent to produce when the line type switches and interfere), therefore the side subassembly does not basically have the resistance to the line type switching, required drive power when this structural style can effectual reduction line type switch for current switch roof beam.

Referring to fig. 3, a plurality of protruding plates 1.1.1 are arranged on both sides of the upper cover plate 1.1 at intervals along the length direction, and the protruding plates on both sides of the upper cover plate 1.1 are symmetrically arranged; a notch 1.1.2 is formed between two adjacent convex plates 1.1.1 in the length direction.

Further, the side edge assembly comprises a functional assembly and a side edge plate 1.4 arranged on the inner side transverse rib plate 1.5, the upper top surface of the side edge plate 1.4 is flush with the upper top surface of the upper cover plate 1.1, and the functional assembly is arranged on the side edge plate 1.4; the side of the side plate 1.4 close to the upper cover plate 1.1 is provided with at least one notch two 1.4.3, the part of the side except the notch two 1.4.3 extends into the notch one 1.1.2, and the protruding plate one 1.1.1 extends into the notch two 1.4.3. As shown in fig. 1, the upper cover plate and the side plate are in a concave-convex fit structure, and a fit gap is left between the upper cover plate and the side plate.

Referring to fig. 4, the side plate 1.4 includes a main body plate 1.4.1 and a plurality of protruding plates 1.4.2 disposed on one side of the main body plate 1.4.1 and disposed along a length direction of the main body plate, a gap is left between adjacent protruding plates 1.4.2, the main body plate 1.4.1 is disposed on the inner lateral rib plate 1.5, and the notch 1.4.3 is located on one side of the protruding plate 1.4.2 away from the main body plate 1.4.1.

Further, the arrangement form of the second notch can be various. As shown in fig. 4, the length of one second protruding plate is shorter, so that a second notch 1.4.3 is formed between the second protruding plate 1.4.2 and the second protruding plates on the two sides; in addition, a second notch can be formed in the single second protruding plate 1.4.2; as can be understood by those skilled in the art, the length and depth of the second notch and the number of the second protruding plates 1.4.2 can be flexibly designed.

Furthermore, the first protruding plate and the second recess as well as the first recess and the second protruding plate are arranged in a one-to-one correspondence manner; however, the first notches on the side plate and the upper cover plate may be arranged in a one-to-one correspondence, or one side plate may correspond to a plurality of first notches (e.g., two notches, etc.); therefore, the specific structural form and the matching form of the side plate and the upper cover plate in the actual design can be adjusted according to the actual requirements.

Referring to fig. 1, the functional assembly comprises a connecting plate 1.6, an outer lateral transverse rib plate 1.7, a pi-shaped plate 1.8, a side guide plate 1.9 and a skid plate 1.10, wherein the connecting plate 1.6 and the side guide plate 1.9 are arranged in parallel, a plurality of outer lateral transverse rib plates 1.7 are connected between the connecting plate 1.6 and the side guide plate 1.9, the connecting plate 1.6, the side guide plate 1.9 and the outer lateral transverse rib plates 1.7 are all connected with the bottom surface of a main body plate 1.4.1, one side of the connecting plate 1.6, which deviates from the side guide plate, is connected with the outer side of the inner lateral rib plate (the outer side of the inner lateral rib plate refers to the side of the inner lateral rib plate, which deviates from the box-shaped beam), and the pi-shaped plate 1.8 is connected with the bottom surface of the connecting plate and/or the bottom surface of the outer lateral rib plate 1.7; the top surface of main part board 1.4.1 is equipped with skid board 1.10, and the length direction of main part board is parallel with the length direction of skid board. Specifically, in this embodiment, the planes of the outer lateral rib plate and the inner lateral rib plate are both perpendicular to the length direction of the turnout beam.

The pi-shaped plate 1.8 in the embodiment is used for mounting a long stator and an electrified coil and providing a magnetic field; the side guide plate has the functions of reducing magnetic leakage, improving magnetic force and protecting an electrified coil; and when the skid plate is used for the parking working condition or other non-suspension working conditions of the magnetic levitation vehicle, the support surface or the running surface of the wheel is supported.

Referring to fig. 1 and 2, at least one support 1.11 is arranged on each of two sides of the beam body unit, and the supports on the two sides of the beam body unit are symmetrically arranged; the support is used for realizing installing the switch roof beam to the platform truck, the switch roof beam passes through the platform truck and drives it and switch between forward line and side direction line, carries out elastic deformation by the platform truck drive switch roof beam promptly.

Preferably, the side members are of the same length; or, the length of the side assembly is gradually reduced from the two ends of the beam body unit to the middle direction; alternatively, the length of the side assemblies may be tapered along the length of the beam body unit.

If there is a change in the length of the side members, the length of the first recess in the upper cover plate also needs to be changed accordingly. Further, if the number of the divided sections of the side assembly on the single beam body unit is more, the driving force required for the elastic deformation of the turnout beam is theoretically less.

As shown in fig. 5, adjacent beam body units are connected through the bridging plates 1.13, in this embodiment, adjacent upper cover plates, adjacent web plates and adjacent lower cover plates are connected through the bridging plates, and the bridging plates are fixed on the two beam body units through high-strength bolts; preferably, a lap shield 1.14 is further arranged between the adjacent beam body units at the lap joint between the two lower cover plates 1.2.

The structural form that the upper cover plate is matched with the side plate in a concave-convex mode is adopted, so that the side plate and the upper top surface of the upper cover plate can be guaranteed to be a flat surface, and meanwhile, the structural form of the side plate can also reduce the rigidity of the side plate; the side board comprises main part board and a plurality of protruding board two, also can utilize the elasticity that the side board produced when the switch roof beam is crooked to increase the local intensity of the roof beam body when reducing rigidity, increases switch roof beam life. The structural style in this embodiment can guarantee original functional requirement and rigidity requirement of magnetic levitation turnout beam, can effectively reduce the drive power that the line type switched again.

Example 2:

referring to fig. 6 to 8, the present embodiment provides a high-speed magnetic levitation turnout, in which a lateral line of the turnout in the present embodiment is a first clothoid curve, a circular curve, and a second clothoid curve sequentially connected from a start end to a tail end; in the embodiment, the transition curve adopts a clothoid curve, the curvature k is linearly changed along with the arc length l, and the radius of the circular curve is larger than 650m, so that the length of the turnout can be effectively shortened.

Specifically, the turnout comprises a turnout beam in embodiment 1 and 0 # trolleys 2, 1 # trolleys 3, 2 # trolleys 4, 3 # trolleys 5, 4# trolleys 6 and 5# trolleys 7 which are sequentially arranged along the length direction of the turnout beam, wherein the 0# trolley is a fixed trolley, the 1# trolley, the 4# trolley and the 5# trolley are driving trolleys, and the 2# trolley and the 3# trolley are driven trolleys; the 0# trolley is arranged at the left end point of the first clothoid, the 1# trolley is arranged at the conversion point of the first clothoid and the circular curve, the 2# trolley and the 3# trolley are arranged in the circular curve, the 4# trolley is arranged at the conversion point of the circular curve and the second clothoid, and the 5# trolley is arranged at the right end point of the second clothoid.

In practical application, the left end point of the first clothoid curve is butted with a buttress beam 8 of a straight line section at the front end of a turnout beam, and the right end point of the second clothoid curve is butted with a buttress beam of a forward line or a lateral line at the rear end of the turnout beam; through the cooperative action among the trolleys, the turnout beam generates elastic deformation, and the turnout beam is switched back and forth between the pile beam 8 of the lateral line and the pile beam 8 of the forward line.

The structure of the buttress beam is shown in figure 7, one surface of the buttress beam, which is butted with the turnout beam, is provided with a pair of guide rollers 8.1, a plug pin is allowed to be inserted between the two guide rollers, and the guide rollers play a role in guiding the plug pin; after the turnout beam is aligned with the stacked beam of the lateral line or the forward line, the stacked beam and the turnout beam are locked through the bolt.

The turnout beam in the embodiment is formed by overlapping three sections of beam body units, the head end and the tail end of the turnout beam are both provided with a locking plate 1.12 in the box beam, and the locking plate is provided with a through hole for a bolt to pass through and is used for connecting the head end and the tail end of the turnout beam with a buttress beam respectively.

The structure of the cart in this embodiment is the prior art, and detailed description is not necessary in this embodiment. Preferably, the trolley in this embodiment adopts a circular arc track.

Each trolley is arranged on a basic platform 9, the basic platform 6 bears and transmits force and moment when the turnout beam is switched and a vehicle passes through, and the settlement value of the basic platform is within the requirement of an allowable range, so that the safety of the turnout is ensured; meanwhile, the top surface of the foundation platform and the top surface of the circular arc track should be kept horizontal, a high-precision guide surface and a high-precision bearing surface are provided for the movement of the trolley, and a high-precision foundation plate with the strength not lower than that of C60 concrete is used as the foundation platform in the embodiment.

The turnout further comprises a control system and a power supply system, wherein the control system comprises a control unit and a detection device, and the detection device can be a speed sensor, a proximity switch and the like and can be used for detecting the functions of movement speed, hard limit and the like. The control unit is used for controlling the movement of each trolley, parking braking, bolt locking with a stack beam and the like, and the control unit is preferably a PLC in the embodiment. The power supply system comprises a normal power supply circuit and an emergency circuit, wherein one of the normal power supply circuit and the emergency circuit is selected to supply power, circuit switching can be manually carried out, and the emergency circuit mainly deals with special conditions such as power failure.

The embodiment also provides a switching control method of the high-speed magnetic suspension turnout, which comprises the following specific steps:

the control steps of the forward line to the lateral line are as follows:

step A1: the driving motors of the 1# trolley, the 4# trolley and the 5# trolley run at the same angular speed, and the 1# trolley is moved in place and applied with parking brake; in the operation process, the speed and position signals of the 1# trolley, the 4# trolley and the 5# trolley are synchronously fed back to the control unit by taking the position and the speed of the 5# trolley as references, and the control unit respectively controls the rotating speeds of the driving motors of the 1# trolley, the 4# trolley and the 5# trolley according to the obtained speed and position deviation; the speed and position deviation among the 1# trolley, the 4# trolley and the 5# trolley is indicated;

step A2: the driving motors of the 4# trolley and the 5# trolley continuously run at the same angular speed, and the 4# trolley is applied with parking brake after moving in place; in the operation process, the speed and position signals of the 4# trolley and the 5# trolley are synchronously fed back to the control unit by taking the position and the speed of the 5# trolley as references, and the control unit respectively controls the rotating speeds of the driving motors of the 4# trolley and the 5# trolley according to the obtained deviation of the speed and the position; here, the speed and position deviation between the 4# carriage and the 5# carriage;

step A3: the driving motor of the 5# trolley continues to move at a rated rotating speed, parking brake is applied to the 5# trolley after the driving motor moves in place, and switching is completed;

the control steps of the lateral line to the positive line are as follows:

step B1: the driving motor of the 5# trolley runs at a rated rotating speed, and when the included angle between the 5# trolley and the 4# trolley is 0, the driving motor of the 4# trolley starts to run;

step B2: the 5# trolley and the 4# trolley run at the same angular speed, and when the included angle between the 2# trolley and the 1# trolley is 0, the driving motor of the 1# trolley starts to run;

step B3: the driving motors of the 1# trolley, the 4# trolley and the 5# trolley continuously run at the same angular speed, and when the 1# trolley, the 4# trolley and the 5# trolley move to the stop positions of the positive lines, parking brakes are respectively applied, and switching is completed; in the operation process, the speed and position signals of the 1# trolley, the 4# trolley and the 5# trolley are synchronously fed back to the control unit by taking the position and the speed of the 5# trolley as references, and the control unit respectively controls the rotating speeds of the driving motors of the 1# trolley, the 4# trolley and the 5# trolley according to the obtained speed and position deviation; the speed and position deviation among the 1# trolley, the 4# trolley and the 5# trolley is indicated;

by adopting the arrangement scheme and the switching control method of the 1# -5# trolley in the embodiment, the switching time is less than or equal to 24s, and the lateral linear precision error is within 2 mm/the total linear length; after the turnout structure in the embodiment is subjected to geometric and dynamic characteristic analysis, the requirements of design speed and comfort level are met; through iterative simulation calculation and analysis of driving point arrangement, the linear precision of the arrangement scheme of the embodiment is not lower than that of the existing arrangement scheme of eight trolleys, and the driving force is far smaller than that of the arrangement scheme of three trolleys.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A turnout beam is characterized by comprising a plurality of sections of beam body units which are sequentially connected, wherein each beam body unit comprises a box beam, inner side transverse rib plates (1.5) and side assemblies, a plurality of inner side transverse rib plates (1.5) and a plurality of sections of side assemblies are arranged on two sides of the box beam at intervals along the length direction, and the inner side transverse rib plates (1.5) and the side assemblies on the two sides of the box beam are symmetrically arranged; the length direction of the side edge assembly is parallel to the length direction of the box-shaped beam, the single side edge assembly is connected with a plurality of corresponding inner side transverse rib plates (1.5), and the upper top surface of the side edge assembly is flush with the upper top surface of the box-shaped beam.

2. The switch beam as claimed in claim 1, characterized in that the box beam is composed of an upper cover plate (1.1), a lower cover plate (1.2) and two webs (1.3); a plurality of first protruding plates (1.1.1) are arranged on two sides of the upper cover plate (1.1) at intervals along the length direction, and the first protruding plates on the two sides of the upper cover plate (1.1) are symmetrically arranged; a first notch (1.1.2) is formed between two adjacent first protruding plates (1.1.1) in the length direction;

the side edge assembly comprises a functional assembly and a side edge plate (1.4) arranged on the inner side transverse rib plate (1.5), the upper top surface of the side edge plate (1.4) is flush with the upper top surface of the upper cover plate (1.1), and the functional assembly is arranged on the side edge plate (1.4); one side of the side edge plate (1.4) close to the upper cover plate (1.1) is provided with at least one notch II (1.4.3), the part of the side except the notch II (1.4.3) extends into the notch I (1.1.2), and the protruding plate I (1.1.1) extends into the notch II (1.4.3).

3. The turnout beam according to claim 2, wherein the side plate (1.4) comprises a main body plate (1.4.1) and a plurality of second protruding plates (1.4.2) arranged on one side of the main body plate (1.4.1) along the length direction of the main body plate, a gap is reserved between every two adjacent protruding plates (1.4.2), the main body plate (1.4.1) is arranged on the inner side transverse rib plate (1.5), and the second notches (1.4.3) are positioned on one side, far away from the main body plate (1.4.1), of the second protruding plates (1.4.2).

4. The turnout beam according to claim 3, wherein the functional assembly comprises a connecting plate (1.6), an outer lateral transverse rib plate (1.7), a pi-shaped plate (1.8), a side guide plate (1.9) and a skid plate (1.10), wherein the connecting plate (1.6) and the side guide plate (1.9) are arranged in parallel, and a plurality of outer lateral transverse rib plates (1.7) are connected between the connecting plate (1.6) and the side guide plate (1.9), the connecting plate (1.6), the side guide plate (1.9) and the outer lateral transverse rib plate (1.7) are all connected with the bottom surface of the main body plate (1.4.1), one side of the connecting plate (1.6) departing from the side guide plate is connected with the outer side surface of the inner lateral rib plate, and the pi-shaped plate (1.8) is connected with the bottom surface of the connecting plate and/or the bottom surface of the outer lateral transverse rib plate (1.7); the top surface of main part board (1.4.1) is equipped with skid plate (1.10), and the length direction of main part board is parallel with the length direction of skid plate.

5. The switch beam as claimed in claim 1, characterized in that at least one support (1.11) is provided on both sides of the beam body unit, and the supports on both sides of the beam body unit are symmetrically arranged.

6. The switch beam as claimed in claim 1, characterized in that, the adjacent beam body units are connected by a lapping plate (1.13); and a lap joint shield (1.14) is arranged at the lap joint between the two lower cover plates (1.2) between the adjacent beam body units.

7. The switch beam as claimed in any one of claims 1-6, wherein the side assemblies are of the same length; or the length of the side assembly is gradually reduced from the two ends of the beam body unit to the middle direction; alternatively, the side members may be tapered along the length of the beam unit.

8. A high-speed magnetic suspension turnout is characterized in that a lateral line of the turnout is a first convolution curve, a circular curve and a second convolution curve which are connected in sequence from a starting end to a tail end; the turnout comprises a turnout beam and a 0# trolley (2), a 1# trolley (3), a 2# trolley (4), a 3# trolley (5), a 4# trolley (6) and a 5# trolley (7) which are sequentially arranged along the length direction of the turnout beam, wherein the 0# trolley is a fixed trolley, the 1# trolley, the 4# trolley and the 5# trolley are driving trolleys, and the 2# trolley and the 3# trolley are driven trolleys; the 0# trolley is arranged at the left end point of the first clothoid, the 1# trolley is arranged at the conversion point of the first clothoid and the circular curve, the 2# trolley and the 3# trolley are arranged in the circular curve, the 4# trolley is arranged at the conversion point of the circular curve and the second clothoid, and the 5# trolley is arranged at the right end point of the second clothoid.

9. The switching control method of the high-speed magnetic suspension turnout according to claim 8 is characterized by comprising the following steps:

the control steps of the forward line to the lateral line are as follows:

step A1: the driving motors of the 1# trolley, the 4# trolley and the 5# trolley run at the same angular speed, and the 1# trolley is moved in place and applied with parking brake;

step A2: the driving motors of the 4# trolley and the 5# trolley continuously run at the same angular speed, and the 4# trolley is applied with parking brake after moving in place;

step A3: the driving motor of the 5# trolley continues to move at a rated rotating speed, and after the driving motor moves in place, parking brake is applied to the 5# trolley, and switching is completed;

the control steps of the lateral line to the positive line are as follows:

step B1: the driving motor of the 5# trolley runs at a rated rotating speed, and when the included angle between the 5# trolley and the 4# trolley is 0, the driving motor of the 4# trolley starts to run;

step B2: the 5# trolley and the 4# trolley run at the same angular speed, and when the included angle between the 2# trolley and the 1# trolley is 0, the driving motor of the 1# trolley starts to run;

step B3: and (3) continuously operating the driving motors of the 1# trolley, the 4# trolley and the 5# trolley at the same angular speed, and applying parking brakes when the 1# trolley, the 4# trolley and the 5# trolley move to the stop positions of the positive lines respectively to complete switching.

10. The switching control method of the high-speed magnetic levitation turnout according to claim 9, wherein the switching control method comprises the following steps:

in the step A1 and the step B3, when the 1# trolley, the 4# trolley and the 5# trolley run, the speed and the position signals of the 1# trolley, the 4# trolley and the 5# trolley are synchronously fed back to the control unit by taking the position and the speed of the 5# trolley as a reference, and the control unit respectively controls the rotating speeds of the driving motors of the 1# trolley, the 4# trolley and the 5# trolley according to the obtained speed and position deviation;

in step a2, when the 4# carriage and the 5# carriage are operating, the speed and the position signal of the 4# carriage and the 5# carriage are synchronously fed back to the control unit based on the position and the speed of the 5# carriage, and the control unit controls the rotation speed of the driving motor of the 4# carriage and the 5# carriage respectively based on the obtained speed and the obtained position deviation.

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