JPH0393902A - Ground coil laying method - Google Patents

Abstract

PURPOSE:To improve the fitting accuracy and work efficiency by fitting a long steel material, the reference planes of which are formed with high accuracy, along the side wall of a track with high accuracy, and fitting a ground coil to the side wall through a panel positioned on the reference planes. CONSTITUTION:At the time of forming a track or after forming the track, a stiff long steel material 7, the reference planes 7a, 7b of which are previously formed with high accuracy, is fitted along the side wall 3 of a track 5 with high accuracy. Subsequently, a panel 11 formed with high accuracy is positioned on the reference planes 7a, 7b of the long steel material 7 and installed on the side wall 3 of the track 5. A plurality of floating coils 17 and propulsion coils 13 are fitted for one long steel material 7 to the side wall 3 of the track 5 through the panel 11. By this arrangement, the need of individually fine- adjusting the coils can be eliminated so that a ground coil 1 can be laid with high efficiency of work.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for installing levitation coils and propulsion coils of a magnetic levitation transport device on a track side wall.

[Prior Art] Ground coil for superconducting magnetic levitation railway (top) Consists of two coils: a levitation coil and a propulsion coil.

In the case of sidewall floating, both coils are attached to the sidewalls of the track.

[Problems to be Solved by the Invention] Tracks are usually formed by pouring concrete at the construction site. However, with this normal construction method {
It is nearly impossible to form a mounting surface for the track that satisfies the mounting accuracy required for the above two coils, especially the levitation coil.

Particularly in the case of the sidewall levitation method, extremely strict accuracy is required because the mounting position of the levitation coil determines the vertical position of the vehicle.

Therefore, in the current situation, after constructing the orbit, the position of each coil or the combination of levitation coil and propulsion coil is measured one by one, and the vertical position is adjusted using spacers etc. [Purpose] The present invention provides a ground coil installation method that can efficiently attach a ground coil to the side wall of a track.

[Means for Solving the Problems] A ground coil installation method of the present invention (in providing a ground coil consisting of a levitation coil for levitating an upper car body and a propulsion coil for propelling a car body on a side wall of a track, During or after the formation of the track, a rigid long member with a reference surface formed in advance with high precision is attached with high precision along the side wall of the track, and then multiple levitation coils and propulsion coils are attached to each long member. The above problem is solved by attaching the coil to the side wall via a panel positioned on the reference plane.

[Function] When installing a ground coil, a rigid elongated member with a highly accurate reference surface formed in advance is already attached to the side wall of the track with high accuracy.

This elongated member can be formed by machining in a factory, and can be easily manufactured with high precision.

Moreover, one elongated member can correspond to a plurality of ground coils. From this, it is possible to attach the elongated member to the side wall once and with high precision.{ヱ A plurality of ground coils can be mounted and fixed with high precision simply by placing them on a reference plane via a panel. Moreover, it is possible to form a rigid member using a lighter material than a long member (t, coil (aluminum material etc. can be used, but it is still heavy). Moreover, the shape is simple. Therefore, the positioning and attachment of the long member is also relatively easy.

In this way, the ground coil can be installed with high accuracy and extremely good workability as a whole.

[Example] Next, an example will be described. FIG. 1 shows a cross section of the ground coil 1 attached to the side wall 3, and FIG. 2 shows a front view thereof (the AA cross section of FIG. 2 corresponds to FIG. 1).

This ground coil] is installed as follows.

First, at the same time as the construction of the track 5 or 1 mm after the construction of the track 5, a long steel material 7 with an L-shaped cross section is accurately embedded in the corner formed by the floor part 9 and the side wall 3 of the track 5 by measurement, or Position and fix to the surface using a base plate, etc.

The corners of the long steel material 7 are formed at right angles, and two surfaces 7a and 7b sandwiching the corners constitute reference surfaces for positioning.

Next, attach the panel 11. The panel 11 has already been formed with high precision during its manufacturing process. In particular, the positioning surface 11a and end surface 1lb that contact the reference surfaces 7a and 7b of the long steel material 7, as well as the coil mounting surface 11c opposite to the positioning surface 11a and the mounting bolt holes formed therein, have high precision. Positioned and formed.

Fixing the panel 11 to the side wall 3 (;ll.. Panel 1
The positioning surface 11a and the end surface 1]b of 1 are maintained in contact with the reference surfaces 7a and 7b of the long steel material 7ff,
Any fixing method may be used, but for example, although not shown, a rod provided on the panel 11 may be inserted into a hole drilled in the side wall 3 and embedded and fixed using concrete or hardening adhesive. A method in which a bolt protruding from the side wall 3 is inserted into a hole in the panel 11 and fixed with a nut
There are fixing methods such as fitting and fixing into a frame provided on the side wall 3. During this fixing, the distance between the side wall 3 and the panel 11 is adjusted using, for example, a spacer or the like so that the positioning surface 11a and the reference surface 7a and the end surface 11b and the reference surface 7b come into close contact with each other.

Similarly, a plurality of other panels 11 are fixed as shown in FIG. 2 using the reference surfaces 7a and 7b of the long steel material 7 as positional references. In this way, the fixed panel 11 is fixed to the side wall 3 while maintaining its position with high precision.

Next, the steam propulsion coil 13 of the ground coil 1 is connected to the panel 11.
It is attached to the coil attachment surface 11c of.

As shown in FIG. 3, the propulsion coil 13 is provided with an IL tongue piece 13b on the inner surface of the coil center hole 13a.The bolt 15 is inserted into the through hole 13c in the center of the tongue piece 13b, and the spring 11 By screwing into the mounting bolt hole, the propulsion coil 13 is fixed in an accurate position.

Next, the remaining levitation coils 17 are attached.

As shown in FIG. 4, the levitation coil 17 has a diameter of about 8 mm, which is made by connecting two coils 17a and 17b with two connecting pieces 17c.
It has the shape of a . When installing this levitation coil 17,
Lay it on top of 3 and 1:. The lower end surface 17d is brought into contact with the reference surface 7b of the long steel material 7 to determine the vertical position, and the bolt 19 is inserted into the through hole 17e provided in the connecting piece 17c and screwed into the mounting bolt hole of the panel 11. As a result, the levitation coil 17 is also fixed at an accurate position. In particular, the levitation coil 17 (upper) determines the vertical position of the vehicle body M, and requires strict accuracy in its own vertical position. A very good installation has been achieved.

As described above, in this embodiment, first, the long steel material 7 is placed exactly at the corner of the side wall 3 of the track 5 and the floor 9, and the panel 11 is brought into contact with the reference surfaces 7a, 7b, and the side wall 3 is and then attach the panel 11 to the panel 11.
The propulsion coil 13 is attached with reference to the coil attachment surface 11C, and the levitation coil 17 is attached with the surface of the propulsion coil 13 and the reference surface 7b as reference. Therefore, in the end, the entire ground coil 1 is made of long steel material 7.
accurately aligned.

In terms of work, the position of the long steel material 7 must be set accurately at the beginning.
By simply arranging the cables according to the requirements, the cables can be easily installed without any troublesome measurements or fine adjustments, making installation work extremely efficient.

In the above embodiment, the panel 11, the propulsion coil 13, and the levitation coil 17 were attached to the side wall 3 in this order, but in order to further improve workability, the panel 11, propulsion coil 17, The coil 13 and the levitation coil 17 may be assembled together with high precision, and the integrated body may be attached to the side wall 3.In this way, the assembly at the factory can be automated, making the overall efficiency more efficient. Installation work becomes possible.Also, the assembly is done using bolts 15, ]9.
In addition to this, they may be fixed to each other using an adhesive or a fixing component that further reinforces the fixed state.

Moreover, instead of steel material 1:, lightweight and higher rigidity ceramics or the like may be used as the elongated member.

[Effects of the Invention] According to the ground coil installation method of the present invention (L), highly accurate installation is possible without fine adjustment by simply arranging and fixing the ground coil on the reference plane of the elongated member of the side wall. Furthermore, positioning and attachment of the elongated member are relatively easy.

In this way, the ground coil can be installed with high accuracy and extremely good workability as a whole.

[Brief explanation of drawings]

Figure 1 shows a cross-section of the side wall of a track constructed by an embodiment of the ground coil installation method of the present invention. Figure 2 shows its front. Figure 3 shows the front of the propulsion coil. Figure 4 shows the front of the levitation coil. It is a diagram.

Claims (1)

[Claims] In providing a ground coil consisting of a levitation coil for levitating the car body and a propulsion coil for propelling the car body on the side wall of the track, the ground coil is provided in advance with high precision during or after forming the track. A rigid elongated member forming a reference plane is attached with high precision along the side wall of the track, and then a plurality of levitation coils and propulsion coils are positioned per one elongated member on the reference plane. A ground coil installation method that attaches to the side wall through a panel.