RU69004U1 - BEECH TEMPERATURE METER - Google Patents

Abstract

The utility model relates to means for monitoring the condition of axleboxes of passenger railway cars, freight cars and any other means used in railway transport.

The objective of the proposed technical solution is to increase the safety of railway vehicles by increasing the reliability and simplicity of a device for determining hazardous heating of axle boxes.

This is achieved by the fact that in the axle box temperature meter, a means for remotely transmitting a signal about the temperature state of axleboxes of vehicles, represented by an integrated circuit and connected to the temperature sensor using two electrically conductive elements connected to the signal code reference circuit, is located in the inner cavity of the head of one of the bolts, designed to attach the cover to the axle box. The temperature sensor is tightly pressed to the lower inner wall of the cavity of the bolt by the conductors. The entire cavity of the bolt is filled with a compound.

The integrated circuit is connected by a connecting wire through a dielectric boss and an internal dielectric washer glued to the lower part of the bolt head with an external dielectric washer with a conductive layer.

The axle box temperature meter works from a generator, which is a disk with magnets (14) fixed on the end face of the wheel pair axis (13), located opposite the wire winding made in the form of petals (15) on the inside of the axle box cover (16).

The proposed axle box temperature meter allows for continuous transmission of information about axle box temperature, axle box type, axle box number in the process of train movement.

Description

The utility model relates to means for monitoring the condition of axleboxes of passenger railway cars, freight cars and any other means used in railway transport.

Known devices for detecting overheating of axleboxes installed on each axle box and connected to the brake line of a train through a flexible hose (for example, RU, 2096220, B61K 9/04), in which when the axle box is heated, the fusible material melts and passes air into the internal cavity. Under the pressure of the incoming air, the piston rises and opens a hole for air inlet from the brake line. Air under pressure enters the atmosphere until the pressure in the brake line is equal to a pressure of 4-4.4 kgf / cm. A decrease in pressure will cause auto-braking and stopping the train.

However, such devices do not allow to prevent an emergency situation in advance, since they do not provide remote monitoring of the condition of axleboxes of rolling stock.

Closest to the proposed technical solution is the invention according to the patent RU, 2220866, B61K 9/04, which includes an electronic tag made with the possibility of remote transmission of information to outdoor devices located along the vehicles, and connected to the temperature sensor using electrically conductive elements connected to the chain of reference code signal electronic tags.

This tool helps to prevent accidents associated with unacceptable overheating of the axleboxes, however, it has a number of significant disadvantages:

- the electronic tag transmits a signal only in the area of its exposure, that is, it does not make it possible to remove information during the movement of the composition;

- an additional device around the bolt head creates additional difficulties during installation;

- the lack of its own power does not guarantee the response of the label when it is irradiated, especially with a design in which mechanical elements cover the label from the sides, which makes it difficult to quickly accumulate energy for the response;

- the absence of a response from the label does not mean unambiguously overheating of the axle box, but may be caused by a hardware failure;

- paraffin at high temperatures will leak out and create a sticky layer that contributes to the deposition of dirt, which, in turn, will lead to the loss of a stable signal;

- even if the electronic tag is active and transmits a signal in places where floor receivers are not installed, there is a possibility that the battery will be discharged;

- the accuracy of determining the permissible heating temperature of the axlebox is influenced by such factors as the speed of the rolling stock, ambient temperature and others.

The objective of the proposed technical solution is to increase the safety of railway vehicles by increasing the reliability and simplicity of a device for determining hazardous heating of axle boxes.

This is achieved by the fact that in the axle box temperature meter, a means for remotely transmitting a signal about the temperature state of axleboxes of vehicles, represented by an integrated circuit and connected to the temperature sensor using two electrically conductive elements connected to the signal code reference circuit, is located in the inner cavity of the head of one of the bolts, designed to attach the cover to the axle box. The temperature sensor is tightly pressed to the lower inner wall of the cavity of the bolt by the conductors. The entire cavity of the bolt is filled with a compound. The integrated circuit is connected by a connecting wire through a dielectric boss and a dielectric washer glued to

the protruding lower part of the bolt head (this is the so-called contact place) with an external washer of dielectric material with a metallized conductive layer.

The described device has its own power source.

The utility model is illustrated by the following drawings:

Figure 1 - temperature meter axle boxes in the context,

Figure 2, 3 is a diagram of the power source of the temperature sensor boxes.

The temperature meter of the axleboxes of railway vehicles includes an integrated circuit (1), configured to remotely transmit information to the locomotive through the antenna (2) and located in the cavity of the head of the bolt (3), designed to attach the cover (4) to the axle box (5). The integrated circuit (1) is connected with a temperature sensor (6) located in the same cavity of the bolt head (3) and with the help of two conductors (7) tightly pressed to the lower inner wall of the cavity. The cavity is filled with a compound (8). The integrated circuit (1) is connected by a connecting wire (9) through a dielectric boss (10) and a dielectric washer (11) glued to the underside of the bolt head with an external dielectric washer (12) with a conductive layer.

The axle box temperature meter works from a generator, which is a disk with magnets (14) fixed on the end face of the wheel pair axis (13), located opposite the wire winding made in the form of petals (15) on the inside of the axle box cover (4).

When the wheelset moves, the disk with magnets starts to rotate and creates induction. One wire from the generator is connected to the axle box body, the second - to the petal of the dielectric washer, which is located under the head of the bolt.

The axle box temperature meter works as follows: When the train moves, the generator starts to work and the voltage is supplied to the integrated circuit installed in the bolt head. Integrated circuit

is a low-speed noise-resistant radio modem that transmits information about the temperature of the axle box from the temperature sensor and from the built-in non-volatile memory, where the number of the box and its type are recorded. Signals from all axle boxes are transmitted to the driver's cab, where they are analyzed by the processor. If the permissible value is exceeded or if there is no signal from the axle boxes, an alarm message is issued to the driver, who takes emergency measures.

The proposed axle box temperature meter allows for continuous transmission of information about axle box temperature, axle box type, axle box number in the process of train movement.

The implementation of the proposed utility model solves all the tasks posed by the author.

Claims (2)

1. A temperature meter for the axle boxes, including means for remote signal transmission, connected by two electrically conductive elements that are connected to the signal code setting circuit, with a temperature sensor located in the inner cavity of one of the bolts designed to attach the cover to the axle box, a layer of heat-conducting material, filling the cavity of the bolt, characterized in that the means for remote signal transmission is represented by an integrated circuit located in the same internal cavity of the head of the bolt where those temperature sensor, bolt cavity filled with compound. 2. The axle box temperature meter according to claim 1, characterized in that it has its own power source - a generator, which is a disk with magnets fixed to the end face of the wheel pair axis, located opposite the wire winding made in the form of petals on the inside of the axle box cover.