JP3858074B2 - Suction type magnetic levitation rail - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of an attraction-type magnetic levitation rail in a magnetic levitation railway.
[0002]
[Prior art]
The attraction type magnetic levitation rail in the magnetic levitation railway has the action of magnetically levitating the traveling body with the levitation electromagnet on the traveling body side, the action of applying a propulsive force to the traveling body by driving the linear motor, When decelerating, during emergency braking, and when stopping, the main function is the braking action by the mechanical brake device as well as regenerative braking of the linear motor. FIG. 5 shows an example of a structure conventionally known as such a levitation rail 101. The levitation rail 101 travels with a mounting arm 102 extending horizontally from one side of a main body having legs 104 and 105 in a downward U-shape and fixed to a levitation rail support member (track girder or the like) 106. It constitutes a track on the ground side laid in the traveling direction of the body.
[0003]
Taking the rail 101 of FIG. 5 as an example, the main action of the rail will be described. 107 is a floating electromagnet, which is assembled to the traveling body 110 and is a U-shaped magnet with a coil 109 wound thereon. A core (iron core) 108 is opposed to the pair of legs 104 and 105 of the rail 101, whereby the rail 101 acts to float the traveling body 110 by the magnetic attractive force of the electromagnet 107. The structure for assembling the levitation electromagnet 107 to the traveling body is not limited, but it can restrain the rolling and transmit the propulsive force to the vehicle body with a suspension device (not shown) including an air spring as appropriate. In many cases, it is assembled to an independently suspended structure commonly referred to as a module connected to the frame.
[0004]
102 is a reaction plate on the secondary side of the linear motor assembled so as to cover the upper surface of the levitation rail 101 main body, and the linear motor primary side on the traveling body (not shown) is closely opposed above the reaction plate 102. In the meantime, driving force and regenerative braking are produced by driving the linear motor.
[0005]
Action performed between the mechanical brake device, Fig. 6, described in FIG. That is, in these drawings, reference numeral 120 denotes a brake device, and the caliper 121 has a pair of divided bodies arranged on both sides of the magnet core 108 (arm on the side facing the one leg 104 of the rail 101). 122 and 123 are fastened and integrated by three sets of fastening means comprising bolt-nut members. Of these, the first and second fastening means are arranged in a pair in parallel at a substantially intermediate position in the vertical direction of the caliper 121, and the sleeves 124 penetrating the magnet core 108 engage both ends with the inner surfaces of the pair of divided bodies. By connecting, the approach of the both is restricted, and the through hole formed in the divided bodies 122 and 123 and the bolt member 125 that penetrates the sleeve 124 and the nut member 126 screwed to the tip screw portion thereof are fastened. The divided bodies 122 and 123 are fastened and integrated by fastening the sleeve 124. The third fastening means includes a pair of divided bodies 122, 123 on both side threaded portions of a long nut member 127 held between the lower ends of the divided cores 122, 123 extending below the magnet core 108. The bolt member 128 inserted through the through hole formed in 123 is screwed and fastened. By these first to third fastening means, the pair of divided bodies 122 and 123 become a single caliper 121 integrated. In such a brake device, the friction material 131 is pressed against the rail 101 (104) by the pressure air supplied from an air pressure source (not shown) with the piston 129 slidingly engaged with the cylinder 130. Each of the sleeves of the fastening means 2 slides in the through hole of the magnet core 108 in the axial direction to move the caliper 121 to the right in FIG. 6 and press the other friction material 132 against the rail 101 (104). A mechanical braking action is obtained by the repulsive pressure of the pair of friction materials 131 and 132. Reference numerals 133 and 134 denote neutral positioning springs for stopping the caliper 121 in the neutral position during non-braking. Reference numerals 135 and 136 denote thrusts for transmitting the braking force generated in the friction members 131 and 132 to the traveling body (for example, the module). It is a link.
[0006]
[Problems to be solved by the invention]
As described above, the attraction type magnetic levitation rail in the magnetic levitation railway has an action object for obtaining a magnetic levitation force, an action object for obtaining a propulsion force, and a regenerative braking force in addition to the action of traveling guidance. In addition, when it is implemented on a business travel route, it plays a role that is not required for the rail of a wheel rolling railway, which is an action object for engaging a mechanical brake device to obtain a braking force. It was found that the following solution issues became a problem.
[0007]
That is, for example, at a station or the like, it is necessary to stop the traveling body at a specified position, and a mechanical brake device is used as a functionally suitable stopping means for stopping the traveling body at this time. Therefore, the engagement operation of rail friction by the friction material is frequently repeated at a specific location, and the friction surface of the friction material and the rail wears slightly even with this engagement. As a result, the amount of wear increases. The wear of the rail caused by this causes a level difference between the wear section and the non-wear section, and gives an excessive load to the structure of the mechanical brake device, which is an important safety part of the brake device. It may cause damage to individual parts, and in extreme cases, it may cause accidents. In addition, since this rail generates a magnetic circuit for the magnetic attraction force for levitation between the magnet core on the opposite electromagnet side, the rail in a specific section is worn and its thickness changes. It is not suitable for ensuring the stability of the magnetic attractive force.
[0008]
In order to deal with such a problem, it is conceivable to replace a worn rail every predetermined period. Usually, the rail is formed to extend over a considerable length (for example, 10 m or more), and the weight is also increased. Since it becomes a large thing (for example, 1t or more), replacement | exchange work is not easy, use of large sized heavy machinery, such as a crane, is also needed, and rail replacement | exchange in the place where a large sized heavy machinery cannot access becomes very difficult.
[0009]
The present invention has been made in order to solve these problems, and one of the purposes thereof is for attracting magnetic levitation having a structure in which a worn rail can be renewed by a simple replacement operation by a few workers. There is a place to provide rails.
[0010]
Another object of the present invention is to provide a magnetic attraction system that can reduce the frequency of rail replacement without increasing the overall cost by making a part of the levitation rail excellent in wear resistance. The company is in the process of providing levitation rails.
[0011]
[Means for Solving the Problems]
The features of the present invention for achieving the above object are as set forth in the appended claims.
[0012]
Attraction type magnetic levitation rail of the present invention of claim 1, the magnetic pole forming a magnetic closed circuit for levitating the traveling body between the rail body and electromagnet assembly protrudes, the traveling body downward has a function as in parallel in the width direction of the track includes a leg provided in the pair, and assembled to the traveling body mechanically both sides of the one leg or the pair of friction material displacement have the brake system In the magnetic levitation rail of the magnetic levitation railway provided so as to be pressed from the rail, either one of the legs protrudes downward from the rail body, and is attached to and detached from the lower end of the leg body. A magnetic pole exchange member that can be attached and the pair of friction materials are sandwiched between them is configured.
[0013]
In addition, although the means to make it attachable / detachable is not limited, Usually, the thing of the structure which fastens and fixes the magnetic pole part for attachment / detachment with the volt | bolt screwed in the screw hole provided in the rail main body can be mentioned. .
[0014]
According to these inventions, the replacement portion can be limited to a small size, and the rail can be updated with a small number of workers and a simple replacement operation.
[0015]
The invention of claim 2 of the present application has a function as a magnetic pole that projects downward from the rail body and forms a magnetic closed circuit for floating the traveling body with the electromagnet assembled to the traveling body. includes a leg provided in a pair in parallel in the width direction of the track, and a pair of friction material of the mechanical brake apparatus is assembled to the traveling body is provided so as to挾圧from both sides of the one leg or displacement have the In the magnetic levitation rail of the magnetic levitation railway, any one of the legs is formed in a thin shape having dents on both side surfaces in the thickness direction, and the friction material is engaged with the dents on both sides. The magnetic pole exchange member is detachably attached .
[0016]
According to the present invention, since the replacement part can be further reduced, simplification of the replacement work is improved.
[0017]
The invention of claim 3, in each configuration described above, the one leg which is detachably mountable relative to the rail body, the friction material of the mechanical brake device of the elongate rail It is characterized in that it is provided in a specific portion where engagement is frequently repeated.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
In this example shown in FIG. 1, the levitation rail 1 is fixed to a levitation rail support member (not shown) such as a track girder by extending a mounting arm 6 from one side of the rail body 2 in the horizontal direction. 5 is basically the same structure as the levitation rail 101 described in FIG. 5 in that it constitutes a track on the ground side laid in the traveling direction of the traveling body. 3 is a reaction plate on the secondary side of the linear motor assembled so as to cover the upper surface of the levitation rail body 2.
[0019]
The feature of this embodiment, one leg (pole) 4 of a pair of legs (poles) 10 4, 10 5 in FIG. 5, the short leg body 4a protruding from the rail body 2 downward, the leg the lower end of the main body 4a, to the rail main body 2, there is to the pole exchange member 11 forming a target frictional engagement face of the pole and brake system which are assembled detachably. That is, in this example, the short leg body 4 a of the rail body 2 to form the female screw hole 7 which opens downward, the through hole 12 and countersunk hole 16 that matches the female screw hole 7 is formed through The magnetic pole exchange member 11 which is formed and can be formed with the same rail shape as that of FIG. 5 by being fixed with bolts 13 is prepared, and this is used for the through holes 12 of the magnetic pole exchange member 11 and the rail body 2. The magnetic pole exchange member 11 is fastened and fixed by screwing the shaft portion 14 of the bolt 13 into the female screw hole 7. Reference numeral 15 denotes a large-diameter head of the bolt, which is provided so as to engage with a stepped portion of the counterbore 16 and firmly fasten and fix the magnetic pole exchange member 11 to the rail body 2.
[0020]
FIG. 1B illustrates a state in which the magnetic pole exchange member 11 described above is partitioned within a relatively short range (for example, several tens of centimeters to several meters) in the long direction.
[0021]
Embodiment 2
In this example shown in FIG. 2, compared to the magnetic pole exchange member 11 of the first embodiment, the magnetic pole exchange member 21 is stepped at its end, and adjacent magnetic pole exchange members 21 are stepped with each other. A rail structure is shown in which the other structures are the same except that they are provided in a stepped engagement structure at the portion 22 and are fastened and fixed by bolts 23.
[0022]
Even with such a structure, in addition to the same effects as those of the first embodiment, the gap between the adjacent magnetic pole exchange members 21 is eliminated by accurately forming the stepped engagement portion. Can do.
[0023]
Embodiment 3
In this example shown in FIG. 3, the lower corner portions of both ends of the magnetic pole exchange member 31 are formed as stepped step portions 32, and adjacent ones of these magnetic pole exchange members 31 are engaged across the adjacent stepped portions 32. An example is shown in which a pressing member 33 to be mated is applied and fixed by fastening with the bolt 34.
[0024]
Embodiment 4
This example shown in FIG. 4, one leg (pole) 104 of a pair of legs (poles) 10 4, 10 5 in FIG. 5, a direction perpendicular the thickness the track is provided as a thin walled section 41 In addition, the magnetic pole replacement member 42 that forms the frictional engagement surface of the brake device is detachably assembled to both side surfaces of the thin portion, and is fastened and fixed with bolts 43. The bolt 43 used in this example needs to be embedded in the counterbore using a flat head bolt and a countersunk bolt so that it does not protrude from the friction surface with which the friction material of the brake device engages.
[0025]
Also in this example, the effect that the worn part of the rail can be replaced by a simple operation is obtained by limiting to the friction surface with which the friction material of the mechanical brake device is engaged.
[0026]
【The invention's effect】
According to the present invention, a short leg body that protrudes downward from a rail body, and a leg body that forms a magnetic pole with which a friction material of an attraction type magnetic levitation rail of a magnetic levitation railway is engaged, and the leg body A magnetic pole exchanging member that is detachably attached to the lower end of the pair, and a pair of friction materials are sandwiched therebetween , or the legs are formed in a thin shape having dents on both side surfaces in the thickness direction, and the dents on both sides are By adopting a configuration in which the magnetic pole replacement member that engages with the friction material is detachably attached, it is possible to update the worn rail by a simple replacement operation with few workers, and the conventional heavy-weight rail can be replaced with a large crane compared to it was necessary to exchange using heavy equipment, Ru is achieved an extremely excellent effect.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a configuration outline of a first embodiment of a levitating rail in which a part of the present invention can be replaced, (a) is a longitudinal sectional view, and (b) is a front view.
FIGS. 2A and 2B are diagrams showing an outline of a configuration of a second embodiment of a levitating rail in which a part of the present invention is replaceable, wherein FIG. 2A is a longitudinal sectional view, and FIG. 2B is a front view.
FIGS. 3A and 3B are diagrams showing an outline of a configuration of a third embodiment of a levitating rail in which a part of the present invention is replaceable. FIG. 3A is a longitudinal sectional view, and FIG. 3B is a front view.
FIGS. 4A and 4B are diagrams showing an outline of a configuration of a floating rail according to a fourth embodiment in which a part of the present invention is replaceable, wherein FIG. 4A is a longitudinal sectional view, and FIG. 4B is a front view.
FIG. 5 is a longitudinal sectional view for explaining the configuration of a conventional levitation rail.
6 is a longitudinal sectional view showing the relationship between the brake device applied to the levitation rail of FIG. 5 and the levitation rail. FIG.
FIG. 7 is a perspective view showing the relationship between the brake device of FIG. 6 and a levitation rail.
[Explanation of symbols]
1 ... Levitation rail,
2 ... Rail body,
3 ... Reaction plate,
4, 5 ... legs (magnetic poles),
6: Mounting arm,
7 ... female screw hole,
11: Magnetic pole exchange member,
12 ... through hole,
13 ... Bolt,
14 ... shaft part,
15 ... large diameter head,
16 ... counterbore,
21 ... Magnetic pole exchange member,
22 ... Stepped part,
23 ... Bolt,
31 ... Magnetic pole exchange member,
32 ... a step,
33 ... Presser member,
34 ... bolts,
41 ... Thin part,
42 ... Magnetic pole exchange member,
43 ... bolt.

Claims (3)

A pair of parallelly extending in the width direction of the track having a function as a magnetic pole that forms a magnetic closed circuit for projecting downward from the rail body and for levitation of the traveling body with the electromagnet assembled to the traveling body comprising a leg provided on and running body assembling mechanical brake apparatus a pair of friction material suction type maglev provided to挾圧from both sides of the one leg or displacement have said In the magnetic levitation rail,
The leg body includes a short leg body projecting downward from the rail body, and a magnetic pole exchange member that is detachably attached to the lower end of the leg body and sandwiches the pair of friction materials . This is a magnetic levitation rail. A pair of parallelly extending in the width direction of the track having a function as a magnetic pole that forms a magnetic closed circuit for projecting downward from the rail body and for levitation of the traveling body with the electromagnet assembled to the traveling body comprising a leg provided on and running body assembling mechanical brake apparatus a pair of friction material suction type maglev provided to挾圧from both sides of the one leg or displacement have said In the magnetic levitation rail,
The at least one leg is formed in a thin shape having dents on both side surfaces in the thickness direction, and a magnetic pole exchange member engaged with the friction material is detachably attached to the dents on both sides. Type magnetic levitation rail. 3. The suction type according to claim 1, wherein the magnetic pole exchange member is provided in a specific portion of the long rail where the friction material of the mechanical brake device is frequently engaged. Magnetic levitation rail.

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