SU958000A1 - Apparatus for controlling transportation units of circular material feed system - Google Patents

Description

The invention relates to the rolling of metals, namely, devices for feeding or displacing rolled products, and can be used for ring feeding of ingots from heating wells to a squeeze mill, for "feeding slabs to sheet furnaces of hot-rolled and wide-strip hot rolling mills, as well as at ring giving of rolls.

The technological process at a modern rolling mill is associated with certain transport operations. In a number of cases, the transportation of workpieces or finished products is carried out with the help of carts (ingot trucks, slab carriers: roll carriers) that move along a rail track. Shuttle, i.e. reciprocating work of the carts, in which the carriage is loaded in one direction, loaded, and back empty, is characterized by the presence of only one carriage on the track and has limited possibilities of ensuring the required productivity of the station with a significant distance from the place of loading and the short rhythm rolling on a high-performance rolling mill when ingots (

rolls) must be fed one after the other with small intervals. In this case, it is advisable to use the scheme of supplying the blanks (finished product), providing for their transportation by transport; moving in a closed circular path, with the number of vehicles on the annular

10 ways associated with the need to ensure a given rhythm of rolling on the rolling mill.

A known system for annular supply of ingots to a receiving roller of a rolling mill, comprising transport carriages moving along an annular rail, with a continuous closed line of trolleys. Power korea engines each

20 of the vehicle is carried out from its power source by means of a ring trolley and a collector device attached to the vehicle. At the same time

25 whichever section of the annular track is a vehicle, its measles engine is fed from its source and, thus, the number of root trolleys

30 is equal to the number of vehicles per ring way plus one trolley, common to all sources, taken conditionally as minus 1.  However, as the number of vehicles on the ring road grows, cumbersome, material intensity and design complexity of trolley lines increase, reliability decreases and the downtime of metallurgical equipment may increase due to frequent departure from trolley holders and current collectors.  In this connection, it is necessary to identify the vehicle located on a given section of the ring road in order to control the speed of this vehicle by supplying a control action to the power source that feeds the engines of this vehicle.  It is also known a device for feeding the engines of vehicles of an annular material feeding system,.  providing power to the engines of vehicles through no more than two core troll with any number of vehicles on the ring road.  Ring power trolleys consist of alternating movement sections, each connected to their power source, and parking sections, each of which is equipped with a vehicle parking sensor and a switching unit consisting of two contactors that switch the parking section and adjacent to it movement sections.  In this case, the device contains a common logic unit, the inputs of which are connected to the outputs of the parking sensors, and the outputs to coils of contactors of the switching units.  The number of sections is equal to the number of vehicles.  The operation of the device consists in simultaneously connecting all sections of the station when there are stationary vehicles on them to subsequent sections of the movement, and when all vehicles with the section of parking are closed, the latter simultaneously switch to the previous sections of the movement before entering and stopping at all sections of the stand of the next vehicles.  In this device, the power supplies do not power the engines of a particular vehicle, but certain sections of the power trolleys with which the supply voltage is fed to the engine of the vehicle that Topof is currently within these sections.  In this regard, the need for a troll to control the sensors of the vehicle and the code decryption unit is no longer needed, since the speed control device can be built without vehicle information.  In this case, for the electric drive system and the power source, it does not matter what kind of vehicle is located in this area of the ring. paths, since food is supplied to specific sections of power trolleys, the number of which is no more than two.  The speed control for the specified power supply device can be solved by track sensors mounted on the sections of the ring trolley 2.  If for some reason the breakdown of the circular path into sections of movement is made so that the detour from one of the sections of movement occurs while all other vehicles are already standing on their sections, then all the same connection of these sections will be one hundred Only after entering and completely stopping the last vehicle in its section of the station.  From this it follows that if a subsequent movement section is released before the vehicle standing on the parking section, then it is only possible to descend upon it after all movement sections are released.  If the loading or unloading of the vehicle ends earlier than expected, the loading of the loaded or empty vehicle is still possible after receiving information about the presence of all transport devices on the parking sections.  Simultaneous connection of all sections of the station to subsequent sections of the movement and sending vehicles onto them is possible if they are standing on all sections of the station.  Therefore, if one or several vehicles, for example, are removed from the ring path due to a breakdown, then for normal operation of the system, it is necessary that backup vehicles be installed instead of remote ones, or, if possible, according to the conditions of the material supply rhythm the same sections of the parking lot, how many vehicles are removed, must be subjected to the following switchings, provided for in designing the electric drive system, in order for it to work in emergency modes: gaps between the parking section and the sections of movement adjacent to it must be zasknuty; primy-  tactile to the movement section becomes one elongated movement section, the power supply of one of these movement sections being turned off; the signals causing the vehicle to snap onto the parking section are disabled; the entrance to the common logic block from the parking sensor of the disabled parking section is replaced by the input from the parking sensor of the subsequent ILY of the previous parking section with respect to the disabled one to receive information on the presence or absence of vehicles on all parking sections in the common logic block.  Having common for all sections of the logic block that produces. simultaneous switching causes the rigid centralized nature of the operation of the known device.  The aim of the invention is to improve the performance of the ring feed system by independently controlling each vehicle by providing independent dispatch of the vehicle from one section to the next section that is vacant.  The goal is achieved by the fact that the vehicle control unit of the ring feed system of the system contains complete thyristor electric drives and a ring current supply for motor vehicles, made up of no more than two ring trolleys consisting of alternating sections of movement connected to each other's thyristor electric drive and parking sections, each of which is equipped with a switching unit consisting of two contactors connected to a logic unit and track sensors vehicle entry and descent, each section of the station is provided with its own logic unit, the inputs of which are connected to the input and descent track sensors and additionally installed on the previous movement section of the vehicle approach sensor, and the outputs of the logic unit connected to the coils of the contactors of the commutating unit of this section of the station and to the speed control inputs of the complete thyristor. the electric drive of the previous section of the movement, with all the logic blocks being interconnected in series into a single closed command-information ring.  FIG.  1 shows a single-line block diagram of a device for automatically controlling vehicles of a system of a ring feed; in fig.  2 - diagram of the block of logic of the section st. Nkich.  The device can be implemented with any number of vehicles on the ring track, and therefore, with any number of pairs of movement sections and sections of the ring trolley supply of power to the engines of vehicles.  At the same time, the number of vehicles on the ring road is equal to or less than the number of parking sections.  The logic block (FIG.  2) contains elements AND 1-7, elements OR 8-13, elements NOT 14-17, elements MEMORY 18-; 24, time delay elements 25-27, one-shot 28 and 29, output amplifiers 30-33, threshold element 34, and logical unit generators 35 and 36.  The logic unit has inputs 37-39 from the DP approach approach sensors, the DV input and the DC exit sensor, respectively, 40 from the complete KHT (il) thyristor electric drive of the previous movement section, 41 and 42 from the contactors of the contactors of the switching unit KB, 43- 45 - from the block of logic ЕЛ (i - 1) of the stand next to the section, 46 from the track sensor of the transition from creeping speed to the nominal one if used (not shown), 47 - from the block of logic BL (1-1) to the runway section, 48 from the system of automation of loading and unloading vehicles a / 49 from the set point start automatic work annular feeding system for the material system control stations (not shown). .  The logic unit has outputs 50 and 51 to the inputs of tasks of nominal and creeping speed of CTE (il), respectively, 52 and 53, respectively, to the coils of contactors K and H, the switching unit KB1, 54 to the logic block BL (1-1) of the previous one the movement of section 55 and 56 to the BL (1 + 1) logic block followed along the section of storage, 57 to the automation system for loading and unloading, 58 and 59 to the alarm system and tracking of the annular material supply.  -o Logic block input 37 is fed to the first inputs of each of the AND 1-3 elements, logic block-38 through the OR element 13 is fed to the switching input of the MEMORY 18 element, and input 39 to the switching input of the MEMORY 19 element and simultaneously to the turning off inputs elements MEMORY 18 and 20.  The last of its inclusive input through the element 4 and one of its input is connected to the output of the element MEMORY 18, and the other input with the EMF sensor of the complete thyristor electric drive of the previous movement section along the serial circuit: input 40 of the logic unit, threshold element 34, element 14, NOT 14, delay element 25.  In addition, the output of the element MEMORY 18 is fed to one of the inputs of the element or 8, to the second input of the element AND 6 through the element NOT 16 and to the second input of the element IZ.  Output 1 of the last is connected to the on input of MEMORY 21, the switching off input of which is connected to the output of MEMORY 23, and the output of MEMORY 21 is fed to the second inputs of the OR 8 and AND 5 elements. The third input of the AND 5 element is connected to the output of the HE 16 element.  The entry of the element MEMORY 19, which is a signal of the presence of the vehicle on the subsequent movement section, is fed to the input of the element NOT 17 ,. on the output, 55 of the BL1 logic block, from which the BL (I-1) logic block 43 is fed to the input 43, followed along the section of the C (i + 1) station, from where it is connected to the first input of the element. And 6 BL (1 + 1) logic block and, finally, output 59 of the BL1 logic block for use in the alarm system and tracking.  Element output And b through delay element 2 & filed on the input of the element MEMORY 24, the output of which, amplified by the amplifier 32, through the output 52 of the logic unit is connected to the coil of the contactor K of the switching unit.  The coil of the contactor AND switching unit is connected to the output 53 of the logic unit, which is the end point of the circuit: the output of the element is NOT 17, the second input of the element is AND 7, the element of delay 27, the amplifier 33.  The first input element And 7 is connected. to the output of the item MEMORY 20.  The output of the latter, when there is a logical unit on it, is a signal of the parking of the vehicle to the sections of the parking and is also fed to the output 54 of the BL1 logic block, p.  which is served by hat. i input 47 of the BL block (1-1) of the previous one along the section of the station, from which through one-shot 28 to the switching-off input of the MEMORY 19, to the switching off input of the MEMORY 24, to the output 57 of the logic block for use in the automation system of loading and working loads of vehicles, as well as output 58 For use in the alarm system and accompanying the material delivery price ring.  The third input element I 7 through the input 48 of the logic block is connected with the automation system of loading and unloading.  The closing block contacts of the contact K through the input 41 of the logic block are connected to the power input of the generator of logical unit 35, the output of which is given to the second input of the And 1 element, to the first input of the And 5 element and through the NOT 15 element to the second input of the And 2 element The closing contacts of the contactor H through the input 42 of the logic block are connected to the power input of the Generator of logic unit 36, the output of which is fed to the output 56 of the logic block that is connected either to the input 44 of the logic block BL (1 + 1) following the section or to input 45 of this block BL (1 + 1) depending on whether the speed of descent should take place on this section of the stand: creeping (input 44) or nominal (input 45).  Inputs 45 and 46 of the logic unit through the element OR 10 are fed to the input input of the MEMORY element 22, the output of which through the amplifier 30 and the output 50 of the logic unit is applied to the input of the setting of the nominal speed CHE (i-1) previous along the movement section and through. the first input of the element OR 12 - to the switching input of the element MEMORY 23.  Input 44 of the logic block together with the outputs of the AND 1 and 5 elements through the OR element 9 is fed to the switching input of the DIMAT 23 element, the output of which through the amplifier 31 and the output 51 of the logic block is connected to the input of the CET creeping speed reference (i-1) and through the first the input of the element OR 11 - to the switching off input of the element MEMORY 22.  The output element And 2 together with the outputs of the elements MEMORY 18 and 21 through the element OR 8 and the one-shot 29 served on the second inputs. elements OR 11 and 12.  In addition, an input 49 is fed to the second input of the OR element 13 to the logic unit associated with the start unit of the automatic operation of the ring feed system located at the control station (not shown).  Automatic transport control device. means of the ring feed system (FIG.  1) contains power lines 60, complete thyristor electrical wires 61-68 KTE1. . . KTE8, each consisting of a thyristor converter, an automatic regulator system. control systems, protection and alarm systems.  Each CHP is connected to its own movement section 6976 D1. . . D8 ring road. Lleynogo current lead.  An annular trolley current supply for motor vehicles is no more than two annular trolls consisting of alternating movement sections D1. . . D8 and sections of stand 77-84 C1. . . C8.  o Each of the sections, stands C1. . . C8 is equipped with a switching unit 85, consisting of two contactors H (beginning) and K (end), three track, preferably, contactless sensors and a block 66 of the BL1 logic. . . BL8.  Power closing contacts 87 contactor.  H are connected in parallel to the discontinuities between the parking section and the subsequent movement section, and the power closing contacts 88 of the contactors K are connected in parallel to the discontinuities between the parking section and the previous movement section.  The travel sensor of the vehicle approach to the parking section, referred to as sensor 89 of approach DP1. . . The PD is installed at the end of the previous section of the movement so that when the vehicle brakes with the start of braking at the moment of impact of the travel sensors screen installed on the vehicle sensor on the approach sensor DP1.  , DP8 full stop of the vehicle would ensure the position of its current collector, not the income of the parking section and a small distance (for example, 1 m).  The track sensor of the vehicle input to the parking section, referred to as sensor 90 of the input DV1. . . DV8 is set up in such a way that its actuation from the screen occurs when the vehicle's current lifts fully enter from the previous movement section to the parking section.  The track sensor of the vehicle descent from the parking section to the next section of motion, referred to as sensor 91 of the descent of DS1. . . DC8, is set in such a way that its actuation from the screen occurs when the vehicle’s current collectors are completely removed from the parking section.  The number of movement sections is equal to the number of parking sections, and the length of each movement section is calculated depending on the total length and configuration of the annular path, the speed of motion in different parts of the annular path, and dynamic characteristics. vehicles and loading and unloading times of the vehicle, so that the time of movement of the vehicle on any section of movement along with the time of its parking on the subsequent section of the station is slightly less than the rhythm of the material to load the vehicle.  The length of the parking sections, in turn, must be sufficient for the vehicle’s current collectors to enter from the previous one along the movement section until the current collectors completely stop within the stationary sections. The device works as follows.  , In the initial position, the vehicles are in all sections of the parking lot or part of them.  After supplying the supply voltage to the cabinet with logic blocks from the common control station of the system of annular material supply from the setpoint of the automatic system start, the logical unit is fed to the inputs 49 of the logic blocks of the parking sections on which the vehicles are located.  The next full operation of the device occurs automatically until the supply voltage is removed from the cabinet with logic blocks or until the logical unit is removed from the inputs 48 of all logic blocks, which prohibits vehicles from starting, came to their sections of the station.  The logical unit from the input 49 of the BL1 logic unit through the element OR 13 enters the including input of the MEMORY element 18.  According to the output of this element, the logical unit arrives at the first input of the element 4.  At the second input of this element, a logical unit is already present, since the EMF sensor to the 1-thyristor electric drive КТЭ (1-1) of the previous movement section, through input 40 of the logic block, supplies the input of threshold element 34. Zero voltage - at the output of the threshold.  element is set to a logical zero, and therefore, at the output of the element is NOT 14 and the element of delay 25 is a logical one.  The consequence of this is the appearance of a logical unit at the output of the AND element, which includes the element MEMORY 20.  The output of this element is logical units; and through output 57 it enters the automation system of loading and unloading, giving information about the parking of the vehicle, such as permission to load and unloading through output 58, to the alarm system and tracking of the ring feed of material, and also to the first input element and 7.  At the second input of this element there is a logical one, since at the beginning of the operation of the device at the input of the element, NOT 17 a logical zero is set.   To the third input of the element And T logical unit comes from the input 48.  the logic unit associated with the automation system loading and unloading after the end of loading or unloading the vehicle.  At the input 48 of the block of logic of the sections of the station, loading or unloading is not foreseen on the ship, the logical unit lasts for a long time. .  The logical unit removed from the output of the element 7 through the delay element 27 causes the amplifier 33 to turn on, the output of which through the output 53 of the logic block BL1 supplies power to the coil of the contactor H of the switching block CB of the stand section, Ci.  t The closing power contacts of the contactor H connects the Ci section of the station to the downstream movement section D1, and therefore to the CHP1, and the closing contacts of the contactor H through input 42 of the BL1 logic unit supply power to the generator unit 36.  The logical unit, removed from the output of the generator 36, is fed to the output 56 of the BL1 logic block, from where it is fed to one of the inputs 44 or 45 of the BL logic block (1 + 1) subsequent along the parking section, depending on what the descent speed should have place on this section of the crawling stand V (entry 44) or nominal V c (entry 45).  When connecting the output 56 of the BL1 logic unit to the input 45 of the BL (i + 1) logic unit, the logical unit through the element OR 10 includes the element MEMORY 22, the output of which includes the amplifier 30.

The output of the latter through the output 50 of the VL logic unit (i + 1) is fed to the input of a reference speed set V of a complete KHE thyristor Electric Drive, a subsequent movement section. The output of the CHP through the movement section D1, the contacts H, the parking section Ci and the current collection assembly is fed to the engine of the vehicle standing on the parking section Ci. The output voltage of the CHP | increases to the nominal value Ai corresponding to the nominal speed of the vehicle, at which the descent from the parking station C1 and movement along the movement section fli occurs.

This mode corresponds to the forward movement of the vehicle on the parking section and the subsequent movement section.

When connecting the output 56 of the BL1 unit to the output 44 of the BL (i +) logic unit, the logical unit through the element OR 9 includes the element MEMORY 23, the output of which turns on the amplifier 31 The output of the latter through the output 51 of the logic unit BL (1 + 1) is fed to the input of the creep job the speed of the DAD of the complete thyristor electric drive KHT of the subsequent movement section D1. The output voltage of the CHP; through the movement section fli, the contacts H and the section of the station Ci are fed to the engine of the vehicle, which begins to descend from the section of the station at a creeping speed. This mode corresponds to the vehicle’s descent from the parking section to the next movement section, the beginning of which is a curvilinear section of the track, where, according to the vehicle construction and track conditions, the creeping speed is unattractive (for example, after the parking section the means of the subsequent movement section includes a curvilinear LN section of the track, on which the direction of movement of the vehicle is changed by 180, after which it is two Jets in the direction of loading). After the vehicle enters the rectilinear part of the movement section fli, a transition from the creeping speed of the UPL to the nominal VH occurs. At the point of transition from creeping speed on a curvilinear segment to the nominal speed, on the straight line segment there is a fuse sensor of the transition from a creeping pl to the nominal speed Vc VA (not shown), the code of which is connected to input 46 of the BL (i + l) logic block sections of st. When a sensor is triggered from a screen mounted on a vehicle, a logical unit removed from its output enters through the elements OR 10 and 12 to the switching off input of the MEMORY 23 element and from the output of the OR 10 element to the starting input of the MEMORY 22 element. Thus, the creep speed reference removed, and set the task nominal speedy -: -, ti VH.

The same is possible; the mode of operation of the vehicle on the section of motion when the curvilinear part of the motion is located between two straight lines. In this case, the output 56 of the BL1 logic unit is connected to the input 45 of the BL logic unit (1 + 1), providing a transport signal from the nominal speed. When the vehicle approaches the beginning of the curvilinear section from the screen mounted on the vehicle, the travel sensor switches from the nominal (N) speed to the creeping (PL) flH / P (not shown), the output of which is connected to the input 44 of the BL block of logic (i +1) follow: sections of the station. In this case, the logical unit removed from the output of the sensor through the elements OR 9 and 11 turns off the element MEMORY 22 and, removed from the output of the element OR 9, turns on the memory MEMORY 23. At the same time, the task of the nominal speed is removed and the task of the creeping speed is set.

When the vehicle approaches the end of the curvilinear section, the track sensor of the transition from creep (PL) to the nominal (H) speed fl Pl / N (not shown) is triggered, the circuit switching already described is performed: sensor output fl ПЛ / й - block input 46 logic BL (1 + 1), the element OR 10 and further off the input element MEMORY 23 through the element OR 12 and the starting input of the element MEMORY 22.

When the vehicle leaves the parking section, the flCi derailment sensor is triggered. The logical unit removed at this moment from the output of the sensor flC through the input 39 of the logic block BL1 includes the element MEMORY 19, the logical unit removed from the output of this element enters the input of the element NOT 17, the output of which is set to a logical zero, which causes the appearance of logs. The ches zero at the output of the element AND 7 and the switching off of the amplifier 33. The coil of the contactor H loses power and the stationary section is disconnected from the subsequent movement section. The vehicle continues to move along the movement section D1. The information about this in the form of a logical unit comes from the output of the switched on element MEMORY 19 to the output 59 of the BL1 logic unit, from where it is fed to the alarm system and tracking the ring feed of the material as a vehicle presence signal to the D1 section of the door and to the 55 output of the logic unit - BL1, from where it is fed to input 43 of BL (1 + 1) logic, followed by the –Section of the station, from which I 6 enters the first input of the element 6. If the vehicle ahead of the vehicles has already left the following section, then C (i + l) then the sensors worked at the same time (logic unit (through the input 39 of the BL block of logic (1 + 1)) to the switching off inputs of the MEMORY 18 and 20 elements. At the output of the MEMORY 18 element, a logical zero is set, which, due to the element 16, causes the logical unit is also on the second input element I 6. The output unit now has a logical unit on the output of the element 6 through the delay element 26 turns on the element MEMORY 24. The amplifier 32 is turned on and through output 52 of the logic block BL (I-1) supplies power the coil of the contactor To the switching unit KBd + l) the subsequent section of the hundred nki C (i + l). The closing power contacts of the contactor K connect the section of parking C (i + 1) to the movement section D1, creating conditions for the vehicle to enter the parking section C (i + l) .. Similarly to the described, the device runs when the vehicle moves through movement. D (1-1): when the vehicle descends to this movement section, the derailment sensor from this section is triggered from the vehicle section C (il) and the BL (± -1) logic block from output 55 sends this section to the logic unit BL1 to the input 43 a logical unit, as informing about the movement of the vehicle along the movement section D (1-1). At the same time, the Ci station section is surveyed about the presence of a vehicle ahead of it. When releasing this section of the station from the descent sensor DC1 in the BL1 logic block, the element MEMORY 18 is turned off. at the second input of the element 6, a logical unit is established, and, at the same time, the logical unit at the output of the element 6 is a command to connect the switch Ci to the movement section D (1-1) by the contactor K of the switching unit CB. When the contactor is triggered, its ejecting block contacts through the input 41 of the BL block supply power to the generator unit 35. A logical unit removed from the output of the generator 35 is supplied to the second input of element I 1. When the vehicle approaches the station C section from the screen on the vehicle, triggered travel sensor approach DP1. Logic the unit from the output of the DP1 approach sensor through the input 37 of the BL1 logic unit is fed to the first input of the AND 1 element. At the same time, the logical input of the MEMORY 22 element is fed from the output of the AND 1 logical unit and the logical unit removed from the output the element OR 9, includes the element MEMORY 23. From the KTE (i-1) thyristor electric drive supplying the movement section D (1-1) and the section Ci connected to it at this moment, the nominal speed reference is removed and the creep speed reference is set . The output voltage of the CHP (i-1) is reduced, and the vehicle at a creeping speed enters the parking section Ci. In this case, the input sensor of this section of the DBI station is triggered. Logical unit, removed from the output of the flBi input sensor, through input 38 of the logic block BLi and the element OR 13 turns on the element MEMORY 18. Logical unit from the output of the element MEMORY 18 comes through the element OR 8, the one-shot 29 and the element OR 12 to the switching-off input of the element MEMORY 53 , thereby ensuring that the creep speed is removed from the CET (i-1) and the vehicle is braked on the Ci section down to zero; on the second input of the element FROM; to the first input of the element AND 4. Measurement of vehicle braking on sections from Ci of the motor EMF decreases, and therefore the voltage supplied from the sensor of electromotive voltage of the CHP (i-1) through the input 40 of the logic block BL to the input of the threshold element 34 becomes close to zero. At the output of the threshold element, a logical zero is set, and at the output of the HE element 14, a logical unit that, after the delay time of the element 25, necessary for a guaranteed complete stop of the vehicle, appears at the second input

element 4. The element 4 and includes the element MEMORY 20. The logical unit is removed from the output of the element MEMORY 20, performs the following operations; turns off the element MEMORY 24, due to which the coil of the contactor K of the switching unit CB loses power and the shorting contacts of contactor K opens, disconnects the section of the station Ci from the previous section of the movement section of the DS (i-1); arrives at the output 54 of the BL1 logic block, from where to the input 47 of the BL block of logic (1-1) of the previous section of the parking section C (1-1) and then through the one-shot 28 to the switching off input of the MEMORY 19 element of the BL block of logic (1-) , providing, the caNWM, information about. that the traffic section D (1-1) is free for the next vehicle to descend on it; enters output 57 of the BL1 logic block, from where it goes to the automation system for loading and unloading as information about the parking of the vehicle, as well as output 58 for use in the alarm system and tracking the annular material feed; prepares the connection by the contactor H of the Ci section of the station to the subsequent movement section D ±, arriving at the first input of the element And 7.

Stopping the vehicle ahead on the next section of parking C (1 + 1) causes the inclusion of the element MEMORY 20 of the BL block of logic (1 + 1), the output of which is through the circuit output 54 of the logic block of the overhead line (1 + 1), input 47 of the block logic BL1 and one-shot 28 causes the switching off element MEMORY 19 logic block BL1. This results in a logical zero ha element input. NOT 17 and a logical unit at the second input of the element AND 7 At the third input of this element, the logical unit comes from the loading and unloading automation system MJ after its completion (input 48 of the L01IKI BL1 unit), with a delay the time of the element 27 sufficient to turn on the contactor H after the contactor K has fallen off, the amplifier 3 turns on. It supplies power to the coil of the contactor H, and the parking section Ci is connected to the downstream movement section D1. The cycle described below is repeated. In the same case, when, when approaching the movement along the movement section D (1-1) of the vehicle to the parking section Ci, the latter still occupied the vehicle going ahead, i.e. at the output of the element MEMORY 18 of the BLi logic block there is still a logical unit, then the circuit element B of this block of logic cannot be assembled and the contactor K of the switching block KB1 cannot be turned on. Consequently, the output of the generator unit 35 is logical zero, and the output of the element 15 is the logical unit applied to the second input of the element 2. When the approach sensor DP1 is triggered, the logical unit is removed from its output, through input 37 of the logic block BL1 goes to the first input element is AND 2. Pa the output of the last appears logical unit, which through the element OR 8, the one-shot 29 and the element. OR 11 switches off the element MEMORY 22, and the vehicle decelerates at a nominal speed to zero, stopping at the traffic section in front of the parking section.

At the same time, the logical (unit, removed from the approach sensor DP1, is fed to the first input of the element And 3) Since at the second input of this element there is already a logical unit (section-occupied), it appears at the output of the element 3 and includes the element MEMORY 21, which supplies logical units to the second input of element 5. After the vehicle in front leaves the parking station Ci, the sensor of derailment, triggered, ensures the switching off of elements MEMORY 18 and 20 and the activation of element MEMORY 19, Logical zero set at the output of the element MEMORY 18, ensures the appearance of logical units at the output of the elements NOT 16, AND 6, MEMORY 24 and the inclusion of the contactor K of the switching block KBif which connects the section of station C to the previous section of the movement D (i-l).

At the same time, a logical unit appears at the output of the generator unit 35, which is fed to the first input of the element 5. To the third input of this element is

the unit comes from the output of the element NOT 16.

At the output of element 5, a logical unit appears which, through element 9 or 9, includes element MEMORY 23. Amplifier 31 is turned on, the output of the latter is fed to a creep speed reference input KT3 (i-l), and the vehicle is drawn into the parking section Ci.

Simultaneously with the inclusion of the amplifier 31 logical unit & a, removed from the output of the element MEMORY 23, is fed to the starting input of the element MEMORY 21f drive it to the original position.

Claims (2)

The cited embodiment of the switching blocks KB1 ... KB8 is not the only one. The switching unit can be made in the form of a contactless thyristor switching device. . The above embodiment of the BL1 ... BL8 logic blocks is also not the only one. So, for example, instead of contact blocks of contactors K and H of switching blocks and alternators of block 35 units and block 36 fed through these block contacts, some time delay elements with the same numbers can be accepted with a certain allowable reduction to the reliability of the received information. 35 and 36, installed in parallel with the generators of the unit, the input of the delay element 35 connected to the output of the MEMORY element 24, and the input of the delay element 36 connected to the output of the delay element 27, while the exposure time of the elements 35 and 36 should be several above the response time of the K and H contactors. All the elements of the MEMORY of a logic unit can be replaced by RS-flip-flops using both direct and inverse outputs. The MEMORY element 18 can be excluded if the screen length of the screen acting on the travel sensors is somewhat longer than the stopping distance of the vehicle. In this case, the output of the element MEMORY 18 is replaced by the output of the element OR 13. In the case that the applied KHT thyristor electric drive provides for the issuance of a logical unit at zero EMF of the powered motor, then the locking unit can be simplified by excluding the threshold element 34, the HE element 14 and the delay element 25 and supplying the UEP unit of the logical unit to the input 40 of the logic block and further, directly to the second input of the And 4 element. Thus, unlike the analog power supply devices of the vehicle engines, Aci material and automatic control devices of vehicles proposed provides independent automatic movement of each vehicle along the annular path, - Limited only by the presence of the vehicle in the subsequent sections and the necessity for loading APIS yl unloading. In this case, the power supply is carried out through no more than two core trolls with any number of vehicles on the ring road, there are no automated control trolls, vehicle code sensors and a code decryption unit. In the case of using the ring track rail as the second pole of the CHP output, it is sufficient to have one power supply trolley of all vehicle engines on the ring track. The proposed device simultaneously performs both power supply functions for vehicle engines and automatic vehicle control functions. Due to the immediate dispatch of the vehicle to the next section, as soon as it is free, the parking factor of all vehicles in the prototype is eliminated until the last vehicle stops on its stand section. Independent automatic control of each vehicle, all other things being equal, reduces the number of vehicles on the circular track with respect to the prototype, i.e. improve the performance of the ring feed systems. Claims of the invention A vehicle control system of an annular material supply system comprising complete thyristor electric drives and an annular current lead for a vehicle motor feeder, made up of no more than two annular trolleys consisting of alternating sections of traffic, each connected to its thyristor electric drive, and sections each of which is equipped with a switching unit consisting of two contactors connected to a logic unit and input sensors and vehicle gathering, in order to improve the performance of the ring feed system by independently controlling each vehicle, it additionally contains logic blocks according to the number of parking sections, and the inputs of each logic block are connected to the input track sensors the descent of its section of the station and an additionally installed sensor of approach to this section, and the outputs are connected to the coils of the contactors of the switching unit of this section of the station and to the inputs of the pack the speed of the complete thyristor electric drive of the previous movement section, all the logic blocks being interconnected in series. Sources of information taken into account in the examination. 1. USSR Author's Certificate No. 292755, cl. B 21 B 39/00, 1969. 2. USSR author's certificate according to the application No. 2718936 / 22-02, cl. B 21 B 39/00, 1972. "at D