JPS58180370A - Truck for railway - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a U-car for railways, in particular, in which a bolster is accommodated in the side frame of the second column, and the inner and outer bolster jibs, that is, the protruding edges of the bolster, have pockets for accommodating the columns of the side frame. Related to forming railway bogies.

Bolstajib as described above is disclosed in US patent $3.
No. 109.387. However, this patented invention is primarily concerned with side frame stop lugs that limit horizontal branching and rotational movement within the side frames.

It was discovered that the above-mentioned side frame of a railway bogie has an axis that moves toward the intellectual side between the bogies. Although the cause of this tendency to IEa is unknown, it is thought that this large interlocking movement becomes difficult due to the heavy load of the vehicle. Therefore, the inner bolster jib is more susceptible to damage than the outer jib. Of course, these boats have an inner 1111 due to the slope in which both side frames approach the inner 111ilVc.
This occurs when the 1 jib comes into contact with the column of the side frame, that is, the columnar part.

Inner Bolster Jib - Side Frame; 1- of Ram
An example of wear and tear is a 480,000-rk (768,0
It happened 4 minutes after driving (00km). The internal bolster jib wear i was 0.211 inches (5.36 mm), and the side frame column contacting the internal bolster jib had a wear i of 0.172 inches (C437 mm).

There is no wear on the outer +141 bolster jib, and on the other hand, the side frame column VC that contacts the outer bolt jib.
No wear occurred either.

In the current AAR semi-large railway bogie, #Gap between the new inner bolster jib and side frame column that does not wear out 1
/4 inch (6.3 m), and the gap between the outer bolster jib and the side frame column is 5/8 inch [15 mm l1].

With this standard clearance, excessive If damage is caused to the outer bolster jib as described above. It has been found that wear of this inner bolster jib and the side frame-ram that touches it occurs within one to two years after use, and after this initial wear, the bogie's bolster and side frame IC undergo significant wear. d these (1.

SUMMARY OF THE INVENTION The present invention provides a railway bogie in which a bolster is supported within the side frame of f'i2 +161.

The bolster has at each end thereof two sets of inner and outer 11 bolster jibs, ie, bolster projecting edges, which jibs form pockets that accommodate the side frame columns. The 1IJI group between the inside sole and the side frame column is AAR.
The gap between the outside + Ill jib and the side frame column is smaller than the AAR1 jlli standard. The preferred relationship for the clearance between the inner and apocryphal jib and the side frame column is such that the inner jib-side frame column liJ]H is equal to or slightly less than the gap between the outer jib and side frame column. big J
It was discovered that it can be used in cases of Ih.

If you do it yourself, the present invention is a bolster and 2 Ill! Side 7 of v −A k including M'Ik ! In a truck, this bolster is supported between both side frames, and the bolster has an inner bolster jib and an outer bolster jib at each end, and these jibs extend out from the bolster to form a pocket on the side frame column. The gap between this inner bolster jib and the side frame is approximately 1/4 inch (6,35 wux) for the AAR collar standard type.
It is large at 72 inches (12.7 inches), and the gap between the outer bolster jib and the side frame is Al1111m.
It provides a small trolley of about 3/8 inch (19.5-inch) compared to i/8 (7? r15.87 inch).

The present invention reduces excessive internal jib wear while maintaining the full inner and outer jib clearances required by AAR regulations, ensuring that all gaps between the inner and outer jibs and side frame columns require maintenance. It has a long service life of 1M until reaching the maximum value of 1/2 inch (3.81 meters).

A top view of a section of the bolster 10 is shown in the accompanying drawings. Column 12 of the side frame (!:14 is I
It has a root plate 1517 and is almost in contact with the bolster 10 as shown in Figure 6. The ends of the bolster 10 have two sets of inner bolster jibs 16 and 24 and outer bolster jibs 18 and 2.
It has 6.

These jibs project laterally from the longitudinal axis of the bolster 10. The side frame column 12 has a stop projection 20 projecting laterally from the longitudinal axis of the column, and the side frame column 14 has a stop projection 22 projecting laterally from the longitudinal axis of the column. .

The clearance between the inner bolster jibs 16 and 24 and the side frame columns 12 and 14 is approximately 172 inches (i 2,7
The gap between the outer bolster jibs 18 and 26 and the side frame columns 12 and 14 is AA.
Rm skewer type 5/8 inch (15J17m) [vs. about 3/8 inch (9,5 In)! Small. A good relationship is obtained by making the distance between the inner bolster jib and the side frame column equal to or greater than the distance between the outer bolster jib and the side frame column.

[Brief explanation of drawings]

The accompanying drawings show a partial top view of the bolster-side frame of the present invention. 10... Bolster, 12.14... Side frame column, 15.17... Hair root, 16.24...
Inner Bolster Jib, 18.28...Outer Bolster Jib

Claims (1)

[Claims] 1. Includes a bolster and side frames on both sides. The bolster is 211! In a railway bogie having 1 ends, each bolster end being fitted into the side frame opening. Each bolster end includes two sets of bolster jibs, an inner and an outer till, which extend outward from the longitudinal axis of the bolster. The core inner and outer bolt jibs form pockets to accommodate the side frame columns. A railway bogie characterized in that the preferred spacing between the inner bolster jib and the side seven frame columns is equal to or greater than the spacing between the outer bolster jib and the side frame columns. 2. Remove the bolster and side frames on both sides. 2. The bolster is a railway bogie supported within the side frame, and the bolster includes an inner bolster jib and an outer bolster jib at each end.2. These valley jibs extend outward from the bolster to form a pocket on the bolster and contact the side frame;
m), wherein the threshold gap between the outer bolster jib and the side frame column is about 3/8 inch C9.5). 3. In the railway bogie described above in @paragraph 2, each bolster end includes two sets of inner and outer 11111 bolster jibs,
Each of these jibs is an iron 1 truck that projects outward from the vertical axis of the bolster. 4. The railway bogie according to No. 344 above, wherein each side frame includes two columns each contacting the bolster jib pocket.