The modernized system of automatic speed control unhooked (ARSM-CRI) Information on the weight category (weight gradations) Unhook and number of axles it is used to determine the running properties unhooked, preset speed output unhooked from the upper brake position, the selection stage brake retarders, determine the number of Unhook the wagons and its length as well as for the issue of the weight category to unhook the display on the remote control hump PSU and PC remote control
Information about the weight gradations of each wheel of a moving car and the number of axes in unhook comes from the set on the way to the top position of the brake wagon vesomera type BB-65 6.
Vesomer consists of the following main parts. insertion rail, bridge, cylindrical rollers, stops, clamps, spacer wedges, carriage and terminal box.
Rail insert made of rail type R65 3.5 m. In the middle of the insert on the length 1370 mm cut of the rail head and the resulting groove is established bridge of hardened spring steel. The ends of the bridge based on cylindrical rollers, which are mounted on legs. From the transverse displacements of the bridge and rollers protect clamps and wedges. The ends of the rails and the stops are attached to the neck of the rail insert bolts.
Rail insert with bridge abutments, clamping bars, wedges, and the terminal box is mounted on the carriage 2, which is mounted on the sleepers and fastened to them with the help of crutches.
Vesomer when driving on it specifies the value of the car pushing the wheel. Measured value pressing tunic grouped into six weight grades indicated in the table. Information about the weight grading wheel vesomerom converted into corresponding electrical signals.
In the contact box placed six pairs of contact springs. One of the springs of each pair rests on the adjusting screw with the cam, and the other lies on a stationary contact arm rack. Communication between the bridge and the contact lever by means of the push lever. Contact and push the levers rotate on a common axis and interconnected adjusting screw. The return spring serves to drive the initial position of the levers. The degree of pressing the spring adjusting screw changes.
The newly assembled vesomere tread the middle of the bridge towers above the rail head and 6 mm, and the ends of the bridge over a length of 105 mm should be left flush with the rail head. The gap between the side surface of the bridge, and clamping bars is 0.5-1.0 mm. Adjustment of the elevation of the bridge head of the rail as it is carried out the selection of the rolling cylindrical rollers and the respective diameters.
By clicking on the rolled vesomeru wagon wheel bridge flexes and acts on the push rod 8, which is one end part of the opening of the bridge, and the other by the adjusting screw 3 rests on the contact arm I. Turning around an axis pin lever switches in series A contact group, PM, C and t. d., depending on the deflection of the bridge, which is proportional to pressing wagon wheels. The closure of one or several contact groups provides an electrical signal corresponding to the weight grading
The operating conditions vesomer adjusted and regulated in accordance with the instruction manual. At checkups draws attention to the good condition of the rail insertion bridge clamps, tightness of nuts, bolts, etc. The terminal box checked by the absence of oxides on the contact spring, the free rotation of the arms, the presence of grease nipple and a felt pad, fastening wires and snug fit cover body parts.
As a rule, measurement and adjustment of the total produced in the box, which is attached to the reserve-contact distance between regulated by a special calibration device makes using a micrometer screw to set limit values by weight gradations. With this adjustment the contact lever mounted in a horizontal position with «0» of the contact (see. Figure 2) and the adjusting screw 3. For proper presetting! after installation in terminal box vesomer must use the «0» -Contact and adjusting screw again to achieve the horizontal position of the contact arm
Finally, the correct operation of vesomera specified when weighing platforms or omission that is the bowl with a known weight of wagons — empty (container), laden cars, coal, etc. n.
Before adjusting the double-arm lever is set to the middle position by pressing the shank. The middle position of the lever is determined at the time of touching the end of the lever to the «0» -Contact if there was no connection, or at the time the contact is opened if the lever rested on him. Availability touch (open) end of the two-armed lever with a «0» is checked any electric-contact probe. This operation allows the terminal box to the current vesomer no special regulation on the way.
Before installing boxes on the seats in vesomere clip shank inserted through the neck opening of the rail insert into the hole in the bridge, and then tighten the mounting bolts.
After the adjustment work and correct operation vesomera tight lid of the box and put on the protective cover.
The system ARSM-CRI provides for the use of five weight categories unhook gradations: light, easy to medium, medium, medium-heavy and heavy.
On the basis of information received from vesomera in blocks determinant of the average of the weight category unhook depending on the weight and the number of cars in it four-wagons. The capacity of the computing unit calculates the weight categories unhooked, consisting of no more than four-five cars NC. When longer unhook their weight category is determined by the first 20 axes
Length unhook it is characterized by a number of eight-wheel cars. One standard unit of length corresponds to unhook the average length of the two four-cars (8 axes) and is equivalent to one fixed portion of the device control filling podgorochnyh ways PPC (30 m). Capacity counting device, unhook the fixing length is limited to 56 axes (14 of four-wagons).
The value of the weight category unhook determined as the sum of the respective weight gradations of the number of axes in the unhooked, divided by the total number of axes unhooked.
For the correct definition should be considered a feature of the contact system of the existing vesomera. Information about the weight of each wheel gradation is issued so that the category A fixed unhooked from each axis independently of weight class PM while passing axles light middle and heavier categories C — middle and heavier categories. ST — medium-heavy and heavy categories T only severe category. Consequently, issued vesomerom axles of light weight category, is the sum of all axes unhooked.
Depending on the weight category of passing vesomeru Unhook the closed defined contact groups. With the passage of vesomeru easy-center axis counter weight class should capture the number 1, medium — 2, 3 medium-heavy and heavy-4. The counter records the number of axes (four-wagons) Unhook must operate issued by vesomerom number of axles of light weight category.
Number of cars accounted for which is calculated the weight category unhooked, determined by the distance from vesomera to the site, located in front of the brake beam position. For the majority of marshalling yards is a distance of at least 75 meters, which is equivalent to the length of the four-five cars. The relay contact breaks the power circuit CB Relay weight after passing five cars. Consequently, the amount of counter weight categories axes unhooked shall record number defined as the product of the maximum number of axes carried heavy weight category and the corresponding number of this category. To do this, the meter must have at least six bits.
Number of cars in unhook also required to know and taking into account the length of the unhooked, in motion by podgorochnomu path which is followed by another unhooked (dynamic control). Zone control of static filling the marshalling lines (EWC) can be up to 450 m, which provides 15 control sites and 30 m each, which corresponds to an average length of two eight-wheel cars. Studies have shown that takes into account the length unhooked you can restrict the length equal to half of the range of the UP, t. E. Four axes fourteen cars. It requires a six-digit binary counter. The circuit of the relay A relay included frontline CAP, which after passing through fourteen wagons breaks.
By clicking each wheel rolled bridge vesomera consistently make and break contacts located in the terminal box vesomera. Thus, especially at high speeds unhooked, these contacts can bounce, which may lead to the issuance of unnecessary cchёta pulses and, consequently, fixing of false information. Therefore guard receiver information about the weight grading wheel unhook coming from the terminal box, must respond to the contact bounce, hold the information until the descent to the unhooked wheels protruding over the head rail of the bridge vesomera and then transfer it to the counter fixing weight category unhooked.
Information about the weight grading wheel unhook be transmitted and recorded before the entry next to wheel carts vesomerny bridge, t. E. For 1int.
To ensure the required performance each weight gradation axis unhook it is advisable to encode a specific binary number that is recorded directly in the corresponding bit of the counter, summing weight category axes unhooked (fast parallel data recording without converting it into a sequence of pulses and feeding them to the input of the counter). For the same reasons, it is advisable to take into account the weight class trolley car along only one axis, assuming that all have the same truck axle weight class.
Consider the operation of the device determining the weight category and length unhooked.
Information from vesomera and weight grading each 1 Olesa unhooked to appropriately weight the relay L, LS, C, CT and T. These relays are included so that the chain locking switch heavier weight class passes through the relay lighter weight category. Therefore, after the disappearance of wagon wheels with vesomera opens first chain lock relay lighter weight classes, and then heavier. Providing the necessary time slots in series relays triggered by weight is achieved by shunting them winding capacitors and resistors.
To eliminate false positives counter weight categories and the number of axes unhooked when the relay contact bounce weight applied intermediate RS trigger (with separate entrances). Transforming potential signal from the RS flip-flops in the pulse required for the counters, made differentiating circuit RC.
Counter weight categories unhook manage triggers Dl, D2 and D3. These triggers are in original condition applying zero potential U0 at their conclusions through the front 1 A relay contact, which is triggered at the time of entry on the wheel unhook vesomer. Trigger D4, which controls the counter axes, the initial state is set via the rear relay AL
When joining any vesomer axle weight class attracts the armature relays A and front-line contact provides a zero potential at the output 1 trigger D4, translating it to another stable state. After leaving this axis with the trigger again vesomera capsize and its output will be served 5 zero potential on the total input of the first flip-flop D1 counter axes. The first flip-flop change state than through the locks prosledovanie vesomer one axis. When passing through vesomer other axes unhooked operation of the circuit will be similar; incoming information will be aggregated with the previously obtained.
Consider the operation of the counter weight category. If vesomer proceeded through the axis easy to middle weight category, Tripped A and PM. The latter is blocked via relay L. A front contact PM charged capacitor C1. After leaving wheel vesomera opens the power circuit switch A, and then switch drugs. Through rear relay PM, T, C and CT from the capacitor Cl will be served at the zero potential terminal 2 trigger D3, whereby it goes to another stable state. With O 5 trigger D3 with differentiating circuit RC will be provided a positive impetus to the overall trigger input D1 of the first digit of the counter weight category. Last moves to another steady state, fixing prosledovanie through vesomer first axis light-middleweight.
When prosledovanii vesomer axis through the middle weight category Tripped P, PM and C relay with blocking through the front relay PM. Also through the front relay PM charged capacitor C1. After leaving the wheels to unhook vesomera series circuit opens switch A, A and C. With A rear relay LS and T and tactical relay contact with the capacitor C1 will be served at the zero potential terminal 2 trigger D2, whereby it goes to another stable state. With the output 5 of the flip-flop through the differentiating circuit RC will be provided a positive impetus to the overall trigger input D2 of the second category of the counter weight category, which then goes into another stable state. As a result, the counter weight category will be recorded the number 2 (medium weight category).
Prosledovanie through vesomer axis medium-heavy weight category will trigger the sensing element L, LS, C and CT. Relay ST blocked via relay contact C. In this case, the counter weight category should be fixed number 3. At the time of gathering wheels vesomera relay is de-energized L. A rear relay A and tactical relay CT zero potential is applied to the output of the flip-flop 2 D3 (cm. Fig. 3). Last go to another stable state. With O 5 trigger D3, as well as at prosledovanii through vesomer axis light middle weight category, will be fixed unit counter weight category. The number 2 in this case is transferred to the flip-flop D2 of the counter but the same circuit as in prosledovanii vesomer axis through the middle weight category, but with a certain time delay (due to the slow release relay PM).
If vesomer proceeded through the axis of the heavy weight category, it will work all the weights of the relay. T switch is blocked via relay ST. After leaving wheel vesomera opens the power circuit relay A S. A rear contact and the last front-line switch T to the capacitor Cl will be served at the zero potential terminal 2 trigger D1, which turns into another stable state. With the output 5 of the flip-flop through the differentiating circuit will be provided a positive impetus to the overall trigger input D3 of the third digit of the counter weight category. As a result, the counter weight category will be recorded the number 4 (heavyweight).
When prosledovanii through vesomer other axes unhooked the operation of the circuit is similar to that discussed above, only to receive information about the weight category of each axis will be the sum counter to previously obtained.
As noted above, in order to save the elements, reading information from meters weight category and number of axles unhooked enough to take into account data from one axis of each carriage. Therefore reading recorded information counters starts with their second digits.
With the count of the number of cars in and unhooked from the meter half-sum weight categories unhook information is read respectively through amplifiers D7 ..D9 relay 40, 1T, 1B, 2B, 4B and 8B and through amplifiers D8 … DJ0 relay 1VK, 2VK, 4VK , 8VK, 16VK and 32VK.
Information about the half the sum of the weight categories and axes unhooked enters the known device calculate the average value of pressing the wheel for all unhooked in accordance with expression.
Currently, the devices described above are introduced at hump stations Orekhovo-Moscow road.