JPH04248341A - Core fastener/supporter - Google Patents

Abstract

PURPOSE:To support a laminated core firmly and to improve the space factor and the workability in a fastener/supporter in which a U-shaped support is tightened from the opposite sides with a laminated cored being sandwiched. CONSTITUTION:One fastening part 11b of a support is hooked and an independent core retaining board 12 comprising a hooked piece corresponding to the hooked fastening part 11b is provided. A tightening bolt 3 is then passed through the retaining board so that tightening force of the bolt 3 functions sufficiently.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamping and supporting device for an iron core in a linear motor.

0002

[Prior Art] FIG. 4 shows, for example, Japanese Patent Application Laid-Open No. 52-120316
FIG. 2 is a cross-sectional view showing a state in which the core of the conventional linear motor disclosed in the above publication is supported in a tightened manner. In the figure, reference numeral 1 denotes a support body formed in a U-shaped cross section with clamping parts 1a on both sides, and a laminated iron core 2 is housed between the clamping parts 1a on both sides of the support body 1. Further, tightening bolts 3 are tightened by penetrating the laminated iron core 2 and the tightening portion 1a of the support body 1 at a plurality of locations, and the tightening bolts 3 are used to tighten the laminated iron core 2.
is fixedly supported on the support body 1. 4 is a coil installed within the laminated core 2.

[0003] Next, the operation will be explained. The laminated core 2 is formed by laminating thin core blanks, and in order to maintain the laminated state, the laminated core 2 is housed between the clamping portions 1a of the support 1, and the clamping bolts 3 are tightened. Due to the force,
The laminated core 2 is pressed through the clamping portion 1a of the support 1, and is held on the support 1 so that the laminated core 2 does not fall off the support 1.

0004

[Problems to be Solved by the Invention] Since the conventional linear motor core tightening device is constructed as described above, it is difficult to adjust the gap between the mating portion of the laminated core 2 and the support 1, and the Since the laminated core 2 is attached by tightening with the tightening bolts 3 through the clamping portion 1a of the body 1, the clamping force of the laminated core 2 is insufficient due to the rigidity of the support 1, and the laminated core 2 cannot be firmly fixed. difficult. Further, since it is difficult to obtain sufficient pressure on the laminated core 2, there are problems such as difficulty in increasing the space factor of the laminated core 2.

The present invention was made to solve the above-mentioned problems, and provides an iron core tightening and supporting device that does not require adjustment of the gap between the support and the laminated iron core and is capable of firmly fixing the laminated iron core. The purpose is to

[0006]

[Means for Solving the Problems] An iron core clamping support device according to the present invention has a cross section of one clamping part of a support body that supports a laminated iron core sandwiched therebetween, and has a key-shaped cross section, and the clamping part is connected to the clamping part. Engage the core holding plate with a key-shaped cross section facing the attached part,
A laminated core is sandwiched between the other clamping part of the support and the core pressing plate, and is clamped by a clamping bolt passing through them.

[0007]

[Operation] In this invention, the laminated core is held between the core holding plate and the opposite tightening part by the core holding plate that is engaged with the hook-shaped cross section formed on one side of the clamping part of the support. It can be tightened sufficiently, so the core can be fixed, the space factor can be increased, and workability can be improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. What is shown in FIGS. 1 and 2 is an embodiment applied to a bogie frame-mounted linear motor for a railway vehicle. In the figure,
Reference numerals 2, 3, and 4 are the same parts as those shown in the above conventional example, and 11 is a support body having a vehicle mounting device, and is provided with fastening parts 11a and 11b on both sides, and one of the parts 11b is provided with fastening parts 11a and 11b. , the position corresponding to the laminated core 2 has a key-shaped cross section. Reference numeral 12 denotes an iron core holding plate having a shape opposite to the hook-shaped cross section of the tightening portion 11b, through which the tightening bolt 3 passes.

Next, the operation will be explained. A laminated core 2 is placed between the core presser plate 12 that is engaged with one hook-shaped cross-section clamping part 11b of the support body 11 and the other clamping part 11a.
and tighten with the tightening bolt 3 that passes through them. The laminated core 2 is fixed to the support 11 with sufficient tightening force. The core press plate 12 is fixed to the support 11 by welding the joint 13 with the support 11.

[0010] In the above embodiment, the tightening parts 11b, 11
Although both a are configured to be tightened with a tightening bolt 3 and a nut, the present invention is not limited to this, and either of the tightening parts 11a, 11
A female thread may be provided on one side of b, and the tightening bolt 3 may be screwed in and tightened, and the nut may be omitted. or,
The hook shape of the tightening portion 11b having a hook-shaped cross section may be formed facing outward as shown in FIG. 3, instead of facing the laminated core side as in this embodiment.

[0011]

[Effects of the Invention] As described above, according to the present invention, since the laminated core is tightened by the tightening bolts that pass through the core holding plate and the tightening portion of the support, the laminated core can be firmly attached to the support. In addition, the holding force of the laminated core is increased, a high space factor can be obtained, and there is no need to adjust the gap between the support body and the laminated core, and an iron core tightening support device with good workability can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a vehicle linear motor core tightening and supporting device according to an embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a sectional view showing another embodiment of the invention.

FIG. 4 is a sectional view showing a conventional linear motor core tightening support device.

[Explanation of symbols]

2 Laminated core 3 Tightening bolt 4 Coil 11 Support 11a Tightening part 11b Key-shaped cross-section tightening part 12 Core holding plate

Claims (1)

[Claims] Claim 1: A support body having clamping parts for the laminated core on both sides, the laminated core being sandwiched between the clamping parts, and clamped and supported by a clamping bolt passing through these parts, wherein the support The cross section of the tightening part on one side of the body is shaped like a key,
The key-shaped tightening part is engaged with a core holding plate having an opposing cross section, and the tightening bolt is passed through the core holding plate and tightened with the tightening part on the opposite side. Iron core tightening support device.