Detection of rail trucks rolling stock, causing in the process of exploitation reinforced side wear of the rail and the wheel flange lubricators

 

(57) Abstract:

The invention relates to methods of diagnosing technical problems with trucks rolling stock. The inventive method consists in determining the set on the path measuring device valueslandpon each wheel of the pair of wheels of the truck and amount of wear during their passage through the device with remembering the sequence number of each wheel pair in this part, the definition for each of these quantities characterizing the ratio of difference between wears and one other wheel of the pair to their sum and comparing it with the preset, in the case of exceeding of which the cart with a serial number of this wheel pair are separated from the stock and send for analysis of the causes of defects and their elimination. The method allows to identify trucks with defects as knots wheelset, and other sites.

The invention relates to methods of technical diagnostics of trucks rolling stock.

Causes of lateral wear of wheel flanges and the side rail wear in curves of small radius, the ambiguous, the individual case and is undetectable by visual inspections of trucks on different combs wheels reinforce the lateral wear of the rail head, and rails, with increased lateral wear even faster wear out wheel combs. The initiators of these processes is the rolling stock, because only when it is in motion there are side effects of wear ridges.

There is a method of identifying trucks rail vehicles, causing in the process of exploitation reinforced lateral wear of the rail and the flange of the wheels, which consists in the fact that measured on the same height level of the thickness of the ridges of the left and right wheels of the pair of wheels of the trolley moves through the control area and determine the amount of wear by comparing the measured values with the project, the results of which are judged on the presence of the defect.

The known method does not provide the possibility of identifying trucks with a combination of a number of faults, in addition to other wheelsets nodes truck.

The elimination of this drawback derives from the fact that in the proposed method, detection of rail trucks rolling stock, causing in the process of exploitation reinforced lateral wear of the rail and the flange of the wheels, which consists in the fact that measured on the same height level of the thickness of the ridges of the left and right wheels of the pair of wheels of the truck in the process is to design, the results of which are judged on the presence of a defect, thickness measurements of wheel flanges and the determination of their wear is carried out in the process of moving the control section of the rolling stock, while additionally determine and memorize the serial number of each pair of wheels in rolling stock and for each value, which characterizes the ratio of the difference between wears and one other wheel of the pair to their sum, which is compared with the set, and in case of detection in rolling stock truck with a pair of wheels, in which the value of the above-mentioned relationship is more specified, a cart with a serial number of this wheelset is directed to analysis of the causes of the defect and fix them.

It is established that all trucks rolling stock trigger the same serviceable the effect is, among trucks operated rolling stock there is always such that intensively with the process side wear of wheel flanges. Therefore, these trucks cause especially heavy wear of rails and got out of service transmitted in repair.

The invention provides the possibility of detecting in a maintained Park of rolling stock trucks crews, causing particularly high is operated vehicles. The exclusion of trucks from the existing fleet of rolling stock will significantly reduce the lateral wear of the rail and the flange of the wheels in the remaining part operated trucks.

It is known that the intensity of the lateral wear of wheel flanges and the side rail wear are determined by the forces acting in the contact of the wheels and rails, angles of crowding of wheel flanges on the rails and the length of the path which are above the power on the rails at high angles of crowding of wheel flanges on the rails.

Found that for some pair of wheels of railway vehicles, even in the straight sections of the path, pass the greater part of its path in percona state relative to the longitudinal axis of the truck, i.e., they do not occupy a radial position in the wheel and not perpendicular to the longitudinal axis of the truck.

Reasons percenage provisions wheelset in the cart can be distinguished by the size of the base frames have the same truck, large values of longitudinal (along the path) gap between values wheelset and axlebox guides bogie frames, different diameters of wheels wheelset, significantly different forms of Bicycle wheels at the same wheelset, aemmer.

Definition of angles percenage movement of the wheelset on the track due to the complexity of measurement in the operational environment of very small angles of rotation of wheel pairs from the perpendicular to the axis of the truck (about 30-90 minutes of arc) is not feasible. Therefore, the movement of the wheelset on the track with the skew is not only a cause of increased on her side wear of wheel flanges, and are caused by enhanced lateral wear of rails, but a symptom of some other fault.

Always value the lateral wear of the ridges on the various wheels of the same pair of wheels differ from each other; the value of the lateral wear of the ridge more on the wheel of the pair of wheels on which a force in contact with the wheel flange and rail, the angle of crowding crest on the rails and the length of the path on which the comb is pressed against the rail head more than on the opposite wheel.

Therefore the difference in the values of the lateral wear of wheel flanges of the same wheelset, referred to the average value of the wear of both of these wheels is characteristic of this pair of wheels on its harmfulness in the education side of rail wear, and therefore the lateral wear of the ridges of the other colonese indicates the specific malfunction of this truck, defining caused by the processes of lateral wear of wheel flanges and rails.

Therefore, an effective way to recognize and identify operated in the Park trucks cars and locomotives, causing intense side wear of rails, having a large intensity of the lateral wear of wheel flanges and cause increased lateral wear of wheel flanges on the other of the wheel pairs, including on other crews (through reinforced side rail wear) is the following sequence of actions:

Measurementlandpthe thickness of the ridges of the left and right wheels of each wheel pair of carriages passing along the way through the device installed on this path, for the production of such measurements; these measurements should relate to the same specified height level of the ridges above the rolling surface of the wheels;

Fixation using a counting device sequence in the course of the composition of non wheelset, which are specified in paragraph 1 dimensions (with subsequent breakdown of their ordinal numbers of trucks and crews);

The conversion specified in paras.1 and 2 information into electrical signals and transmitting this information in the computer that is connected to mentioned is her by the formula (io- whereaboutand design and izmereniya the thickness of the comb;

The calculation on the same computer relationships =ilip)/(il+ ip)| for each pair of wheels, where ipand ilaccordingly, the wear amounts of the right and left ridges of the same wheelset;

Mapping on the computer the absolute value with the allowable value []

The issuance of the computers on copropagate. serial numbers of crews in the composition, numbers of trucks in the crew room of the pair of wheels in the cartpandlthe thickness of the ridges of the right and left wheels of each wheel pair, the lateral wear and marks on the compliance value set normatic []

Allocation to a special path for completion of the special survey crews, in which at least one wheel pair will be > [] < [] where [] is minimum admissible thickness of the ridge.

Full technical inspection of trucks sorted crews.

In the process full technical survey check

the identity values of the dimensions of the base of the right and left frames of each truck;

compliance with the tolerance of the longitudinal and transverse Rysbekov axlebox node axlebox guides;

the correspondence is between the various wheels in the whole cart;

in a rambling trucks specified values are gaps in those wearing the nodes and elements of the truck, which depends on the magnitude of the distortions wheelset and races RAM truck relative to each other, the allowable values (for example, in trucks of the type CRI-X3 wear in the V-system, leaf spring suspension and axle-nodes;

the specified values and tolerances table and damping (friction) force resistance to rotation of the bogie relative to the frame or body of the crew, as well as differences in these values when turning the truck in all directions.

compliance with the permissible norms of wear and damage of the support body on the truck (pivot node, sliders and other elements of its connection with the body, which can lead to pereconomy the position of the truck relative to the body or increase the values guiding efforts on track.

Based on the results of examination decisions on the composition and volume of repair truck.

With long-term Parking of rolling stock on stations or repair with no the above automatic measurement of the thickness of the crests of the wheelsets and the computer listed above in the description of the proposed global survey trucks) can be carried out using known measuring templates and computational tools.

DETECTION of RAIL TRUCKS ROLLING stock, CAUSING IN the PROCESS of EXPLOITATION REINFORCED LATERAL WEAR of the RAIL AND the flange of the WHEELS, which consists in the fact that measured on the same height level of the thickness of the ridges of the left and right wheels of the pair of wheels of the trolley moves through the control area and determine the amount of wear by comparing the values with the project, the results of which are judged on the presence of a defect, characterized in that the measuring thickness of wheel flanges and the determination of the quantities of wear is carried out in the process of moving the control section of the rolling stock, while additionally determine and memorize the serial number of each pair of wheels in rolling stock and for each value, characterizing the ratio of the difference between wear one and the other wheel of the pair to their sum, which is compared with the set, and in case of detection in rolling stock truck with a pair of wheels, in which the value of the above-mentioned relationship is more specified, a cart with a serial number of this wheelset is directed to analysis of the causes of the defect and fix them.

 

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