EA039508B1 - Device for measuring the rail canting - Google Patents

Abstract

The device for measuring the rail canting of a railway track, containing a plate to be installed on the rail tops and carrying an indicating angle fixed on the axis on one of its ends. One of its ends is set against the lateral face of the rail base, and the other end is sharpened and serves for reading the values by scale applied directly on the plate. It also contains a stop pressed against the outer face of the measured rail top, installed on the regulating angle which is designed to move relative to the plate in order to carry out measuring for a certain rail type. In order to prevent short-circuit in the rail circuit during measurements, one end of the plate is coated with insulation material, or the entire plate is made of non-conductive material.

Description

A device is known for measuring the slope of the rails of the railway track developed by VNIIZhT (see Henrich Baluch. Diagnosis of the superstructure of the track. - M .: Transport. 1981. - S. 146, Fig. 3.85), containing a bar mounted on the rail heads and bearing on one from its ends, a plate with a measuring mechanism fixed on it, containing a lever with a stop connected by lever gears with an arrow that displays the value of the underslope of the measured rail on the measuring scale. This device provides a sufficiently high accuracy of measuring the underslope due to the use of a linkage system. At the same time, the presence of several kinematic elements of the measuring mechanism is a disadvantage of this device, because increases its weight and degrades the operational properties of the device in conditions of intensive use during repair work.

It is known (which is the closest to the claimed device) a device for measuring rail underslope of a railway track (patent for invention RU No. 2158690), consisting of a bar with a supporting surface similar to a device for measuring rail underslope developed by VNIIZhT, but differing from it in a simplified kinematic diagram, in which the system of complex levers has been replaced by a protruding element that abuts against the side face of the rail head, and a spring-loaded arrow fixed on the plate, one end of which rests against the side face of the rail base, and readings are taken from the opposite pointed end according to the measuring scale fixed on the plate. The disadvantage of this device is the relative complexity of its manufacture due to the need to ensure the manufacture and fastening of protruding elements, plates, as well as the manufacture and fastening of a curved scale, the attachment points of which to the bar are also vulnerable to damage under intensive use.

The technical result of the proposed device is a simpler design compared to the prototypes, which at the same time provides sufficient measurement accuracy, which reduces the cost of manufacturing the device and improves the reliability of the device in intensive use.

This technical result is achieved by the fact that the proposed device uses unified and simple structural elements, and the absence of curved surfaces makes it possible to reduce the number and simplify turning operations in the manufacture of individual elements, simplify the assembly of the device during production, and generally reduce the cost of the device during manufacture.

Comparative analysis of the design of the proposed device with prototypes allows us to confirm compliance with the criteria of novelty and inventive step. The claimed device provides the required measurement accuracy and the necessary reliability of the design in operation, however, to ensure this, a different design and a different layout and shape of structural elements are used.

The design of the proposed device in the frontal projection is shown in Fig. 1 and consists of an elongated bar 1, which is a shaped rectangular pipe (or a shaped metal strip), at one end of which a metal angle indicator 3 is fixed on the axis of the screw 2, which is a lever by design, the arms of which are at an angle of about 90 ° to each other. friend. One arm of the pointer has a milled step to rest against the side face of the rail base, the other is pointed and serves to read the readings on a scale of 4. Increasing the length of the pointed arm of the pointer in relation to the shoulder with a milled step allows you to increase the accuracy of measurement and reduce the price of scale division by increasing the transfer moment from one shoulder to the other. At the same time, the pointed shoulder of the pointer during measurements does not go beyond the dimensions of the elongated bar, thereby does not increase the dimensions of the device, which is an additional advantage in relation to the prototypes.

In FIG. 2 shows the projection from the back, where the adjusting bracket 6 is fixed with adjusting bolts 5, one side of which has oblong holes and is screwed to the bar 1 with adjusting bolts 5, and on the second side of the adjusting bracket the stop bolt 7 is rigidly fixed.

The end of the bar opposite from the adjusting angle is covered with insulating material 8, which prevents the rail circuit from overlapping during the measurement, which is also a distinctive feature that improves the performance of the proposed device in relation to the prototypes. For ease of carrying, the device is equipped with a handle 9.

In FIG. 3 and 4, for clarity, on an enlarged scale, the measuring and adjusting elements of the mechanism of the claimed device are shown separately.

To lighten the weight of the structure, individual elements, including an elongated bar, a pointer corner, can be made of aluminum alloys, polymer composite materials or wood.

The principle of operation of the proposed device lies in the fact that in order to measure the inclination of the rail, the bar 1 is installed on the rails, while ensuring that the stop bolt 7 is pressed against the outer edge of the rail head, the inclination of which is measured. To carry out measurements, the milled step of the pointer corner is pressed by hand against the side face of the rail base, and the readings are read on scale 4 along the pointed end of the pointer corner.

To measure the underslope of the opposite rail, the device is deployed and the operations are repeated.

Longitudinal elongated holes in the adjusting angle 6, through which the adjusting bolts 5 pass, are designed to adjust the measuring device for a specific type of rails P50, P65, P75 and other types, depending on the width of the rail head, which is different for each type. The ability to move the adjusting angle 6 in the longitudinal plane with subsequent rigid fixation to the bar 1 using fixing bolts 5 allows you to set the stop bolt 7 to the distance necessary for measuring a particular type of rail before measurements and fix it rigidly, thereby preventing the displacement of the stop bolt 7 in the process. measurements.

The claimed device has improved ergonomic and operational properties compared to the prototypes and is not known from the prior art.

Claims (2)

CLAIM 1. A device for measuring the underslope of the rails of a railway track, containing a bar mounted on the rail heads and carrying at one of its ends an angle indicator fixed on the axis, one end of which abuts against the side face of the rail base, and the second end is pointed and serves to read the readings on the scale applied directly to the bar, and a stop pressed against the outer edge of the head of the measured rail, mounted on an adjusting angle, made with the possibility of moving in the longitudinal plane relative to the bar, with its subsequent rigid fixation until measurements are taken with a stop bolt at the required distance for measurements for a specific type rails. 2. The device according to claim 1, characterized in that to prevent the track circuit from being closed during measurements, one end of the bar is covered with an insulating material or the entire bar is made of a non-conductive material.