RU2570845C2 - Air-operated hump point drive (versions) - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: drive case is composed of hollow bar and located at one of point bar place or as a box arranged in cantilever with pint rails. Said case houses compressed air vessel, point drive module, point position micro switch module, gate make internal module, point blade and check rule position control module, control and diagnostics of the drive operating conditions with emergent control unit. Point drive module comprises kinetic accumulator. Compressed air vessel with pressure gage is connected with air cylinder with piston via point position micro switch module. This drive incorporates DAC remote control system and heating system.

EFFECT: guaranteed point switching at train splitting, higher hump capacity, longer life of the drive, lower operating costs.

18 cl, 2 dwg

Description

The invention relates to switch drives of railway automation and telemechanics and is intended for translation, circuit and position control wits on sorting mechanized slides.

There are known drives that are installed on sorting mechanized slides for translating, locking and controlling the position of the shooters with the indivisible course of witches, these are SPG-2, SGTG-3, SPG-3M, SPGB-4, SPGB-4M and SPGB-4B. In the SPG-2 and SPG-3 hump drives, a direct current motor of the MSP-0.25 type is installed at a rated voltage of 100 V. To obtain a higher rate of translation of the arrow, a voltage of 200 V is applied to the motor terminals. The latest modifications of the hump drives are LNG contact drives -3M based on the SP-6 electric drive, non-contact electric drives of the SPGB-4M type based on the SP-6M electric drive and non-contact electric drives of the SPGB-4B type based on the SP-6M electric drive (Soroko V.I., Milyukov V.A. Apparatus and railway automation and remote control: Manual: Book 1 Vol 2 - 3rd ed - NPF "Planet", 2000, - 960, str.54-62).....

Along with the known advantages, these devices have several disadvantages due to the complexity of the design, the presence of a large number of rapidly rotating units and parts, sliding elements requiring intensive lubrication, with increased wear, among which there is a chance of jamming of the gate and other elements and, as a consequence, low reliability, low operating life of the electric drive, high operating costs in conditions of intensive operation on sorting hills. The service life of the drive, which is installed on mechanized sorting hills, is five or more times less than the drive on the basis of which it is made, but installed on the railroad switch.

A technical solution is known (copyright certificate No. 116087, filed November 10, 1957 No. 586151, a pneumatic actuator for translating railroad switches), comprising a pneumatic cylinder with a piston, the rod of which is pivotally connected to a rod for translating arrows, valves and slewing cranes, additional levers , an air line connecting the cylinder to the compressed air reservoir. This technical solution was made as a prototype.

The disadvantage of this technical solution is the impossibility of using the device as a drive for mechanized sorting hills due to the inability to ensure guaranteed translation of the arrow during the dissolution of the composition during the interval of movement between the releases.

The objective of the proposed technical solution is to increase the safety of sorting slides in the HAC (automatic automatic centralization) mode with the unconditional fulfillment of the safety requirements for the staff.

The technical result achieved in the process of solving the stated problem is to ensure a guaranteed switch of the switch during the dissolution of the train during the interval of movement between the cutters, to increase the throughput of the sorting hills in the CAC mode, to increase the service life of the pneumatic slide switch drive, and to reduce maintenance costs turnouts of sorting hills.

The specified technical result according to option 1 is achieved by a pneumatic slide switch connected to an air line, including a compressed air reservoir with a pressure gauge, connected to the arrow displacement module, consisting of a pneumatic cylinder, piston and rod, switch headset, drive air duct system, while the drive additionally contains a drive housing made in the form of a hollow beam, located in place of one of the bars of the turnout switch, inside which the reservoir is located air, the module for moving the arrow, the module for microswitches of the arrow position, the module for the internal gate of the gate, the module for monitoring the position of wits and control rulers, the control and diagnostics modules for the technical condition of the drive with the emergency control unit, and the module for moving the arrows additionally contains a kinetic battery. In addition, the module for monitoring the position of wits and control rulers has additional control over the state of the gate and the gate closing mechanism, the module for monitoring the position of wits and control rulers is equipped with mechanical end sensors, the module for monitoring the position of wits and control rulers is equipped with electromagnetic sensors, the internal gate circuit module has a cam execution, the gate internal module is rack-mounted, the compressed air reservoir with a pressure gauge is connected to a pneumatic chi a cylinder with a piston through the module for microswitches of the arrow position, the drive has a remote control and monitoring system from the HAC post and a drive heating system.

The specified technical result according to option 2 is achieved by a pneumatic slide switch connected to the air line, including a compressed air reservoir with a manometer, connected to the arrow displacement module, consisting of a pneumatic cylinder, piston and rod, switch headset, drive air duct system, while the drive additionally contains a drive housing made in the form of a box, located cantilever relative to the rails of the railroad switch, inside which there is a reservoir of compressed air, hand position DIP module, the internal gate circuit, control module wits and control lines, control modules and Diagnostic drive state to the emergency control unit, and moving the module further comprises an arrow kinetic battery. In addition, the module for monitoring the position of wits and control rulers has a control device according to the state of the gate and the gate closing mechanism, is equipped with mechanical end sensors, equipped with electromagnetic sensors, the gate internal circuit module has a cam design, the gate internal circuit module has a rack version, the compressed air reservoir the pressure gauge is connected to the pneumatic cylinder with the piston through the module of the microswitches of the arrow position, the drive has a remote control system and control from the post GAC and drive heating system.

Using the energy of compressed air can significantly reduce the number of moving parts in the hump drive, thereby significantly increasing the reliability of the drive and increasing the service life of the drive in the stressful conditions of mechanized sorting hills. The increase in the service life of the pneumatic slide switch drive according to option 1 and 2 is achieved by a significant reduction in the number of moving parts in the drive. There is no gearbox and friction clutch, as well as the most unreliable unit in the drive, it is an electric motor. Placing all the units in a single drive housing made in the form of a hollow beam and located on the site of one of the switch boards allows you to protect the drive from external factors, including vandalism, as well as organize the heating of the moving parts of the drive during low temperatures. Placing all modules in one housing can significantly reduce the effects of vibration on individual drive elements.

Frequent replacement of burnt electric motors of traditional drives significantly increases operating costs for the maintenance of turnouts of sorting hills. On the one hand, this is the replacement of failed units and parts with new ones, on the other hand, this is an additional cost for unscheduled work. The presence of a control and diagnostics module for the technical condition of the drive will allow, based on the results of diagnostics, to switch to servicing the drive “as-is”, from costly maintenance “according to the regulations” currently in force.

An important role in improving the safety of sorting slides is played by ensuring a guaranteed switch of the arrow during the dissolution of the composition during the interval of movement between the releases. The presence of friction clutches in traditional drives, the operation of which largely depends on temperature conditions, often leads to a delay in the turn of the arrow. Such a translation of the arrow leads to a violation of the formation of the composition and, as a result, to additional costs, as well as to a significant decrease in the throughput of the sorting hills. Placing an additional compressed air reservoir inside the housing in 1 and 2 drive variants will eliminate the situation that could lead to an accident, namely, the car’s uncoupling had already occurred from the slide, and for some reason there was no pressure in the air line.

The presence in the drive of such modules as a module for moving the arrow, a module for microswitches of the arrow position, a module for the internal gate of the gate, a module for controlling the position of wits and control rulers that require precise adjustment and adjustment will allow more qualified, if necessary, repairs in the repair and technical areas or specialized centers.

Thus, the use of the proposed technical solution according to option 1 and 2 of the pneumatic switch gear drive in the switch gears allows to increase the service life of the pneumatic switch gear drive, reduce the operating costs of maintaining the switch gears of the sorting slides, and ensure the guaranteed switch switch during the dissolution of the train during the period of movement between trailers, increase the throughput of the sorting slides, as well as increase the safety of servicing guide staff during operation.

The proposed technical solution is illustrated by drawings, in which Fig. 1 shows a schematic diagram of the placement of pneumatic slide modules in a housing made in the form of a hollow beam located in place of one of the bars of a railroad switch, Fig. 2 shows a schematic diagram of the layout of pneumatic slide modules in the drive housing, made in the form of a box, located cantilever relative to the railroad tracks.

The pneumatic slide switch actuator according to option 1 consists of a drive housing 1, made in the form of a hollow beam, located in place of one of the parallel switch bars, inside of which there is a compressed air reservoir 2 connected to the air line 3, the microswitch module for the position of the arrow 4, the internal module the closure of the gate 5, gate 5.1 with the manual translation mechanism 5.2 and the kinetic accumulator 5.3, the module for controlling the position of the witters 6 (witters not shown in Fig. 1) and control rulers 6.1, the control module of diagnosis and technical condition of the drive 7 with the emergency control unit 7.1, the module for moving the arrow 8, consisting of a pneumatic cylinder 8.1, the piston 8.2 and the rod 8.3, the module for monitoring the closure of the gate 9, the arrow set 10, the air duct system of the drive 3.1 (Fig. 1 shows part of the system), drive heating system 11.

The pneumatic slide switch actuator according to option 2 consists of a drive housing 12 made in the form of a box located cantilever relative to the switch rails, inside of which there is a compressed air reservoir 13 connected to the air line 14, the microswitch module for the position of the arrow 15, the internal gate circuit module 16 , a gate 16.1 with a manual translation mechanism 16.2 and a kinetic battery 16.3, a module for controlling the position of the witches 17 (the witters are not shown in FIG. 2) and control rulers 17.1, for the control module reporting and diagnostics of the technical condition of the drive 18 with the emergency control unit 18.1, the module for moving the arrow 19, consisting of a pneumatic cylinder 19.1, the piston 19.2 and the rod 19.3, the control module for closing the gate 20, the arrow headset 21, the air duct system of the drive 14.1 (Fig. 2 shows part of the system), drive heating system 22.

The operation of the switch arrow pneumatic slide according to option 1 and 2 is similar and occurs as follows.

Pneumatic system

The drive is connected to the main pneumatic line of the sorting slide. The system has an adsorption type dryer, which provides air preparation, reducing the dew point value, depending on the climatic zone. Filters can prepare air according to DIN ISO 8573.1: 2001 from the first class (dew point -70), the second (dew point -40), the third (dew point -20) to the sixth (dew point +10). In the drive, in the module of the microswitches of the arrow position, the electromagnetic valves control its redistribution depending on the electrical control signals, directing it to the desired cylinder cavity. The pneumatic cylinder by the movement of the rod drives the pusher of the gate internal circuit module. The pusher in the direction of movement first opens, and then, reaching the extreme position, closes the movement of the gate, and that, in turn, through the arrow headset transfers the wits of the switch from one extreme position to another and holds it in one of the extreme positions. The logic of the valve system, together with the pneumatic cylinder, ensures that the cylinder rod is held in extreme positions

Electrical system

The electric drive system controls, monitors and diagnoses the drive status. The control is responsible for the operation of the solenoid valves, ensuring the functioning of the pneumatic system. The control is carried out by microswitches, position sensors and control valves. In connection with the need to comply with the general principles of the functioning of the drives, the position of the wits is monitored at the time of the start of the transfer, then at the end of the transfer, by closing the electrical control circuit. To increase the reliability of the valve system provides for its duplication. By monitoring the transfer time, a failure of a valve is diagnosed. Schaltbau microswitches, model S-800 as 20/40, in which mechanical duplication of springs are used, are used in the control system for the position of the wits. The acoustic diagnostic method is used in the drive diagnostic system, which allows controlling the tightness of the pneumatic system and the correct operation of the mechanisms and control units. As an optimization of the diagnostic system, control of the time of the arrow transfer by monitoring the operation of the monitoring relay is introduced.

Control system

In the extreme position, the control lines are adjusted so that the corresponding microswitch closes the control circuit in a certain position, during the transfer, the control circuit opens, which indicates a loss of control, and at the end of the transfer, the microswitches re-operate, providing control. In the event of an explosion, a change in the position of the control bars will indicate a loss of control.

Claims (18)

1. The pneumatic slide switch actuator connected to the air line, including a compressed air reservoir with a manometer, connected to the arrow displacement module, consisting of a pneumatic cylinder, piston and rod, switch headset, drive air duct system, characterized in that the drive further comprises a drive housing made in the form of a hollow beam, located on the site of one of the bars of the turnout switch, inside which there is a reservoir of compressed air, the microswitch module arrows, the gate internal circuit module, the module for monitoring the position of the wits and control rulers, the control module and diagnostics of the technical condition of the drive with the emergency control unit, and the arrow movement module additionally contains a kinetic battery. 2. The drive according to claim 1, characterized in that the module for monitoring the position of wits and control rulers has a control device according to the state of the gate and the gate closure mechanism. 3. The drive according to claim 1, characterized in that the module for monitoring the position of wits and control rulers is equipped with mechanical end sensors. 4. The drive according to claim 1, characterized in that the module for monitoring the position of wits and control rulers is equipped with electromagnetic sensors. 5. The drive according to claim 1, characterized in that the gate internal circuit module has a cam design. 6. The drive according to claim 1, characterized in that the gate internal circuit module has a rack version. 7. The drive according to claim 1, characterized in that the reservoir of compressed air with a pressure gauge is connected to a pneumatic cylinder with a piston through a module of microswitches of the position of the arrow. 8. The drive according to claim 1, characterized in that it has a remote control and monitoring system from the post of automatic automatic centralization (HAC). 9. The drive according to claim 1, characterized in that it further comprises a drive heating system. 10. The pneumatic slide switch actuator connected to the air line, including a compressed air reservoir with a pressure gauge, connected to the arrow displacement module, consisting of a pneumatic cylinder, piston and rod, switch headset, drive air duct system, characterized in that the drive further comprises a drive housing made in the form of a box, located cantilever relative to the rails of the railroad switch, inside which there is a reservoir of compressed air, the microswitch module arrows, a gate internal circuit module, a module for monitoring the position of witstones and control rulers, control and diagnostic modules for the technical condition of the drive with an emergency control unit, and an arrow displacement module additionally contains a kinetic battery. 11. The drive according to claim 10, characterized in that the module for monitoring the position of wits and control rulers has a control device according to the state of the gate and the gate closure mechanism. 12. The drive of claim 10, characterized in that the module for monitoring the position of the wits and control rulers is equipped with mechanical end sensors. 13. The drive of claim 10, characterized in that the module for monitoring the position of wits and control rulers is equipped with electromagnetic sensors. 14. The drive of claim 10, characterized in that the gate internal circuit module has a cam design. 15. The drive of claim 10, characterized in that the gate internal circuit module has a rack and pinion design. 16. The drive of claim 10, characterized in that the reservoir of compressed air with a pressure gauge is connected to the pneumatic cylinder with a piston through a module of microswitches of the position of the arrow. 17. The drive of claim 10, characterized in that it has a remote control and monitoring system from the GAC post. 18. The drive of claim 10, characterized in that it further comprises a drive heating system.

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