Railway Metro Locomotive 16X 8X, Locomotor, Locotractor

Description of technical scheme of road-rail dual-use vehicle Machine Translated by Google 3. Hydraulic transmission Model Road and railway operation mode conversion time idler track The first part of the main parameters of the vehicle model 4800mm 24V DC starting Turning radius Maximum torque/speed After 15 minutes of operation after refueling, observe the oil level when idling. 11m Power shift, fixed axle Spur gear planetary drive F2 /R2 30km/h 247kWÿ1900r/min One-stage helical bevel gear reduction F1 / R1 model Rated 2000t towing tonnage on straight road In-line water-cooled four-stroke direct injection supercharged inter-cooled high-pressure common rail 24t 2.594 1. Main technical parameters Vehicle weight Model Model wheelbase Starting method 4. Drive axle 3400mm WG180 10km/h 1300N.m /1100-1500r/min Railway traction speed Rated power/speed F3 /R3 top speed Model 1.178 2. Engine Gear and gear ratio Applicable railway gauge 1520mm WP10.336E53 (country 5 road) wheel reducer ÿ3min 5.099 Machine Translated by Google air conditioner GQK-50D 5. Drive wheel hand brake type 8. Guide hydraulic system Four-wheel drive, front-wheel steering 7. Braking system battery DC24V Electronic control, through the unloading valve to ensure constant system pressure Parking brake cylinder brake 10. Electrical system 6. Steering system Model 9. Guiding mechanical system 14.00-24 Video surveillance of warm air coupler and guide wheel Brake type 11. Others 6-Q-195Ah Maintenance is simple, and the locking and positioning of steering wheels can be realized on the railway. system voltage ÿ240mm The electrical system adopts a single-wire system, and the negative pole is grounded. It adopts full hydraulic steering system, which is characterized by flexible and light operation, reliable operation, less failure and maintenance guarantee. Diameter of guide wheel Hydraulic shoe brake, four-wheel brake tire model SR-600G/1 Machine Translated by Google The thermal effect is good. The air filter is installed in the machine room. The external muffler is placed in the machine room. The exhaust system adopts upward discharge. The clutch can be engaged and disengaged under load (without cutting off the power). Low consumption and easy maintenance. 1. Hydraulic transmission The system consists of a water radiator, an oil radiator, an intercooler and its pipelines, etc. The water radiator is the cooler of the engine. The way of exhaust gas has good noise reduction effect; the fuel tank is placed under the frame, which is convenient for refueling; the cooling system The engine and its auxiliary systems To a suitable intake air temperature, in order to increase the air density and improve the charging efficiency, the radiator is placed at the rear of the vehicle, and the The multi-speed gearbox is composed of a parallel shaft transmission structure, which is controlled by a hydraulically controlled multi-plate friction clutch. The second part is the principle of the structure of the main components The oil radiator is the cooler of the torque converter and the transmission oil circuit, and the intercooler is to reduce the supercharged air This car is equipped with WP10.336E53 (National 5) diesel engine, which has the characteristics of light weight, high power, high torque, high oil 2. Transmission system The transmission system consists of hydraulic transmission, transmission shaft, front and rear drive axles and drive wheels, etc. See Figure 1 for details. This vehicle adopts WG180 hydraulic transmission, which is composed of a hydraulic torque converter and a Its pipeline and other components. The engine and its auxiliary systems consist of the engine, air filter, muffler, fuel tank, cooling system and Figure 1 Transmission system 1. Radiator 2. Engine 3. Transmission shaft 4. Gearbox 5. Transmission shaft Machine Translated by Google a. Use a jack to lift the axle housing so that the drive wheel is off the ground; Italian bolts instead. Lubrication should be replenished every 800km-1200km . 4. Front and rear drive axles, front drive axles (2) Assembly of the drive axle 666ÿ784N mÿ (3) Precautions Special bolts are used for the connecting bolts of the drive shaft. When disassembling, do not mix with other bolts, let alone use any bolts. d. Remove the tire. a. Do not knock with a sledgehammer or pry it with a crowbar when disassembling and assembling the drive wheel, so as to avoid deformation and damage of the parts. b. Install the tire on the rim, and install the retaining ring, dynamic pressure ring and lock ring in turn. Do not install the lock ring backwards, pay attention b. The driving wheel is not allowed to work for a long time under the condition of insufficient air pressure, so as not to damage the tire. c. The fixing bolts must be tightened every time the driving wheel is replaced, and a socket wrench must be used after driving for 60km. rear drive axle The front drive axle is mainly composed of the main reducer, axle housing, steering part, wheel reducer, brake, etc. Chapter 4 Wipe the inner tire of the driving wheel, sprinkle a little talcum powder, and install the tire and pad tire. Tighten the drive wheel nut a second time. d. Retread tires are not allowed. The drive wheels consist of 14.00-24 rubber tires. (1) Disassembly of the drive wheel c. Install the drive wheel on the hub, and tighten the rim nut symmetrically and evenly. The tightening torque of the rim nut: 2. Drive wheel The rear drive axle is mainly composed of the main reducer assembly, the wheel reducer, the brake and the axle housing. Each drive shaft includes a drive shaft, a sleeve fork and two universal joint assemblies equipped with needle roller bearings. The drive shaft sleeve fork and universal joint fork are fixedly connected by a tile cover, and its structural feature is disassembly and assembly. Convenient and reliable to use. The torque for tightening the nut here is specified as 44~49Nm. b. Unscrew the rim nut on the rim, remove the drive wheel from the hub, and put it in place; c. Remove the lock ring, dynamic pressure ring and retaining ring; The fit is tight and pay attention to the valve position. The root drive shaft is the hydraulic transmission to the front and rear drive axle flanges. 3. The drive shaft dual-purpose vehicle is equipped with three drive shafts. The first drive shaft connects the engine to the gearbox input flange, and the other two drive shafts. Machine Translated by Google Leakage, less faults, simple and compact structure, convenient installation and layout, simple maintenance The steering system consists of steering gear, oil pump, oil cylinder, oil tank, various valves and pipelines and other components. 1. The steering process is as follows: When driving in a straight line, the steering wheel is in the middle position, the high-pressure oil of the oil pump enters the steering gear through the valve and the oil pipe, and returns directly to the fuel tank from the oil return port of the steering gear. The two cavities of the steering cylinder are in a closed state. When the oil pressure of the oil pump is lower, the power is saved. When the steering wheel is turned left (or right), the high-pressure oil from the oil pump is pumped by the steering gear The dual-purpose vehicle adopts a full hydraulic steering system, which is characterized by flexible and light operation, reliable working seal and no leakage. When working on the railway, the steering gear can be locked to realize the locking and positioning of the steering wheel and ensure the safe operation of the railway. The volume of the box is enough to meet the work and heat dissipation requirements. The working principle of the system is shown in the figure below. 3. Steering system 1. Steering cylinder 2, hydraulic lock 3, steering gear 4, electromagnetic reversing valve 5, monostable valve 6, gear pump 7, oil filter 8, hydraulic oil tank 9, guide cylinder 10, pressure gauge 11, hydraulic control one-way Valve 12, electromagnetic reversing valve 13, accumulator 14, relief valve 15, one-way valve 16, pressure sensor steering hydraulic principle diagram Machine Translated by Google An accumulator and a pressure sensor are installed to ensure the positive pressure of the upper chamber of the oil cylinder, so that the guide wheel is always not lower than the given pressure. The hydraulic cylinder will drop the guide wheel to play a guiding role, and the rubber tire is still in contact with the rail as the driving wheel. Maintenance: (1) The oil should be clean and clean, and it is not allowed to use unclean containers to refuel; (2) The new oil needs to be replaced after the new car runs for 200 hours and every 1200 hours, or after the new car runs for 1000km and every 5000km. . The guide wheel is raised by the hydraulic cylinder, and the road travel is realized by the rubber tire; in the railway operation mode, through the control This system ensures that the oil pressure in the cylinder is maintained between 4.2~4.5MPa. 2. Guiding mechanical system 1. Guide hydraulic system The railway is running now. (3) Oil grade: No. 32 anti-wear hydraulic oil (summer) / No. 32 low-condensation anti-wear hydraulic oil (winter). BZZ1-E250C type is a cycloid rotary valve type full hydraulic steering gear. Open type has no response, that is, the external force acting on the steering wheel cannot be transmitted to the steering wheel, and the high-pressure oil in the middle position is directly returned to the oil tank. This steering gear is small in size, light in weight, light in operation and flexible in operation. When the oil pump is fully supplied with oil, the steering torque is not greater than 4.9N . m, the free turning angle of the steering wheel is not more than 9° on the left and right, the performance is stable and the work is reliable. The one-way valve prevents the backflow of oil, and does not allow the steering wheel to deflect freely, so as to avoid steering failure. The one-way valve is set to the oil circuit pressure of 12.5MPa, and the user cannot adjust it arbitrarily. 4. Guidance system The upper and lower chambers of the lifting hydraulic cylinder are respectively provided with hydraulic control check valves to ensure the stability of the guide wheel. system center The rodless cavity (or the rod cavity of the cylinder) is allocated to the cylinder, and the cylinder piston rod is extended (or the cylinder piston rod is retracted) to steer the front wheels to the left (or right). The steering gear has a hydraulic follow-up function, that is, when the steering wheel rotates an angle, the vehicle has a corresponding proportional steering angle. When the steering wheel stops turning, the vehicle makes a circular motion of equal radius. If the steering wheel returns to the middle position, the vehicle also returns to a straight line. driving status. 2. Steering gear assembly Steering gear assembly includes BZZ1-E250C type full hydraulic steering gear, support, steering wheel shaft, bushing and other components. The guide hydraulic system is mainly composed of oil pump, oil cylinder, pipeline, various valves and oil tank, etc. The vehicle controls the guide wheel The operation of driving into the track can be carried out at the junction of the track and the road. In road operation mode, by controlling The positive pressure value is attached to the rail to ensure the real-time match between the guide wheel and the rail, which ensures the safety and reliability of the guide. For the schematic diagram of the system, see the hydraulic principle diagram of steering steering. The guiding mechanical system is composed of guide wheel body, bearing, guide wheel shaft, beam, oil cylinder lifting lug and inclined arm. At present, there are two working modes of railway and highway, which use the same running device and run on four wheels with rubber tires. The guide system consists of a guide mechanical system and a guide hydraulic system, which can be realized by controlling the lifting and lowering of the guide wheel shaft. Machine Translated by Google Press shoe type brake, foot control brake; when towing the vehicle, the brake shoe acting on the train wheel is used for braking; the brake cylinder to achieve the purpose of braking. The braking device of the dual-purpose vehicle is composed of two independent systems of railway and highway. The compressed air is passed through the pressure reducing valve to the gate, which is used to control the braking of the traction vehicle. 1. Stand-alone brake The car uses the handbrake. rail, and has a guide wheel pressure monitoring device, when the guide wheel pressure is lower than the given value, it can be stopped in an emergency to avoid derailment Brake master cylinder, compressed air is input into the brake booster pump, the piston pushes the oil chamber to push the brake oil onto the rim Through the constant value control of the guide positive pressure, the guide wheel always sticks to the steel with a positive pressure not lower than the given value. The single-machine braking of this vehicle adopts a foot-controlled air-hydraulic shoe-type braking device for all tires, which is controlled by the driver. The compressed air generated by the air compressor enters the main air cylinder through the one-way valve and the oil-water separator, and the main air cylinder comes out. 2. Air brake Use and maintenance methods: (1) Regularly add grease until the grease overflows; (2) Regularly check the bolts and nuts of each fastening part; (3) Regularly check the rotation of each part, and it should be flexible and free from jamming. 5. Braking system The system still has a supporting role, and the parking is safe. Accidents occur to ensure the safety of railway operation. At the same time, a fail-safe protection locking device is provided to ensure the running of the railway. Machine Translated by Google (2) Air compressor 3. Parking brake A pipeline unloading valve is installed on the pipeline, the opening pressure is 0.80MPa, and the closing pressure is 0.65MPa. ÿ Cab lighting The parking brake is mainly used for parking after the person leaves the machine, and its type is the brake air chamber spring energy storage brake. The total volume of the air cylinder is 300L, which is used to store compressed air. It is equipped with a water discharge switch. It is equipped with a safety valve and a water discharge switch. The opening pressure of the safety valve is 0.85MPa, and the closing pressure is 0.75MPa. The frame of the car body is welded by section steel, the outside is made of iron plate as the outer skin, and the inner cavity is filled with heat preservation, heat insulation, degree and stiffness. The frame is the basis for installing various assemblies and components. It is formed by welding section steel and steel plate, and has sufficient strength. Oil-water separators cool and separate oil and water in compressed air to provide clean pressure In addition, the air brake system is also equipped with dust filter check valve, emergency brake valve, filter, pipeline This car adopts Shenzhen Jucai JC-90N air compressor with a rated displacement of 1.08m³/min. The air brake system is mainly composed of compressed air supply system, H-6 air brake and auxiliary air system 6. Body, frame and running system kind of information. The noise reduction material is a closed cab, which effectively reduces the noise in the cab. A distributor is installed at the outlet of the air cylinder to provide compressed air for pressure gauges, air horns and other wind equipment. The lowest part of the total air cylinder can be turned by hand to release water to prevent rust or excessive water accumulation, which may cause brake failure. The compressed air discharged from the air compressor enters the general air cylinder after the water and oil pollution are discharged through the oil-water separator. (4) Total air cylinder 2. Body And various plug gates, double needle pressure gauges and other components. Compressed air, a water discharge switch is installed under the oil-water separator, which can be turned by hand for regular water discharge. 1. Frame (3) Oil-water separator composition. Compressed air supply system consists of air compressor, main air cylinder, check valve, safety valve, oil-water separator Install lights on the top of the cab to ensure that the driver can clearly recognize the various indicators on the instrument when running at night. (1) Air brake Machine Translated by Google Check, each button switch is convenient for the driver to operate, the main driver's seat is beautiful and comfortable, and there are front and rear, height adjustment devices, The front and rear ends of the dual-purpose vehicle are equipped with 2# couplers, which can realize two-way traction operation on the track. The structure of the frame makes the whole vehicle have good running quality. Maintenance 1. Regularly check the fastening of each bolt, and deal with it in time if it is loose. 2. During maintenance, check whether the spring is damaged, inspect the spring regularly, and replace it in time if there is any crack. 3. Regularly check the welding structure and welding seam of welding parts, and repair welding in time if there is any open welding place. 4. Regularly check the tie rod rubber, and replace it in time if it ages. 1. Start the operating system control The engine is started by an electric motor, and the electric motor uses a battery as an energy source. When the engine is running normally, The cab seat and console are arranged according to ergonomic design, and the console instruments are arranged for easy viewing by the driver The running system of this car mainly adopts coil spring for vibration reduction, cylindrical pin guide, and tie rod to connect the drive axle and the car. The generator on the engine generates electricity, which not only supplies the vehicle, but also charges the battery at the same time. The electrical system of the vehicle adopts a switch circuit control system, and the negative pole is grounded in a single-wire system. The electrical system is divided into startup 2. Auxiliary equipment control system Air switches are installed in each sub-circuit to protect the electrical appliances respectively. The dual-purpose vehicle is equipped with a buzzer alarm and a rotating warning light, and has an audible and visual alarm function during the operation of the vehicle. Comfortable ride. 7. Electrical system The main power switch controls the power supply of the whole vehicle. Before starting, this switch needs to be closed to supply power to the system. There are 2 doors on the left and right of the cab, which can be entered and exited from both sides, and there is enough room for operation in the room; 3. Traction device The control voltage is DC24V. ÿ Cab operating environment can ensure safe operation. The running system not only bears the weight of the upper part of the car body but also transmits the traction force, but also buffers the impact from the ground. 4. Walking system The door is equipped with a reversing mirror, which is convenient for the driver to observe. Operation control system, auxiliary equipment control system, light indicating lighting system, interlock protection and alarm display system Good, the front windshield is equipped with wipers to prevent rain and snow from blocking the line of sight; interior mirrors are installed, left and right The front, rear, left and right glass of the room are all made of high-definition, high-strength safety glass, and the room is spacious and has a good view. Machine Translated by Google Emergency brake button, there is a one-button emergency brake button on the console of the dual-purpose vehicle and on the side of the car body, press The lighting meets the chromaticity and illuminance requirements of international standards, and meets the requirements for safe use at night. The vehicle is equipped with a complete range of interior lighting, turn signals, brake lights, front and rear lights, reversing lights, etc. 4. Dashboard When the switch is turned to road mode, the steering gear works and the steering wheel can be turned. 3. Lighting indicator lighting system The main functions of the instruments and indicators on the instrument panel are as follows: Steering lock switch, when the switch is turned to railway mode, the steering gear is locked, the steering wheel cannot be rotated, car. The switches of the control system are all located on the console panel, and are marked with signs. Start, then release the switch. This switch can realize emergency braking, emergency shutdown of the engine, and put the gearbox in neutral to ensure that the dual-purpose vehicle stops immediately. Fuel gauge: It reflects the amount of fuel in the fuel tank through the fuel level sensor on the fuel tank. There is an ignition switch on the console to control the starting of the engine. When it is rotated to the starting position, the engine Figure 3 Electrical schematic Machine Translated by Google There is an ignition switch on the console to control the starting of the engine. When it is rotated to the starting position, the engine To prevent the battery from deforming or bursting. Steering lock indicator light: It reflects the situation of steering lock in place. When the lock is in place, the indicator light is on. Power generation indicator light: the light on indicates that the generator of the engine is generating electricity normally, otherwise it is not generating electricity. MOP meter: display engine oil pressure, display engine cooling water temperature, display engine total operation Start, then release the switch. Working oil pressure gauge: Displays the pressure of the transmission oil in the transmission. 5. Control switch and air switch If the situation falls, add distilled water (pure water) as appropriate. do not. add. acid. . When the battery voltage is low and the light is dim, 6. Use and maintenance of electrical system Other switches control the front and rear dome headlights, front and rear lights, shed lights, instrument lights, wipers, etc. Be careful to prevent the dual-purpose vehicle from falling into the lane. Front idler pressure gauge: Displays the pressure in the front idler cylinder. Turn time, display engine speed, display transmission oil pressure in transmission. Left and right turn indicators: reflect the steering situation. Main power switch, located on the far right side of the rocker switch, this switch controls the power supply of the whole car, before starting 1. Throttle control Air pressure gauge: The red needle is the total air cylinder pressure, and the black needle is the train pipe pressure. Air switches are installed in each sub-circuit to protect the electrical appliances respectively. When starting is weak, it should be charged outside the car in time. When using or storing, always check whether the vent holes are unblocked. Steering pressure gauge; shows the pressure in the steering cylinder. run the vehicle. The electrolyte level of the battery should always be kept between max and min, check it once a month, and check the liquid level according to the Rear idler pressure gauge: Displays the pressure in the rear idler cylinder. Low wind pressure indicator light: When the vehicle wind pressure is lower than 500kPa, the indicator light is on, reminding the driver to pay attention, not to Front and rear guide wheel low indicator light: when the current rear guide wheel pressure is lower than 4.0MPa, the indicator light is on, reminding the driver This switch needs to be closed to supply power to the system. The oil temperature gauge shows the oil temperature of the transmission transmission oil circuit. Eight, control system Machine Translated by Google 2. Derailment prevention device Nine, safety protection device When the pressure is lower than the given value, it will alarm, remind the driver to pay attention, prevent the dual-purpose vehicle from derailing, and ensure the safety of railway operation. fall; on the contrary, selecting the railway mode cannot control the guide wheel to fall and rise, which can effectively prevent the misoperation cause a safety accident. 3. Turn off the ignition control After the engine runs at idle speed for 3 to 5 minutes, turn the ignition switch to the OFF position to turn off the ignition. The wheel always sticks to the rail with a positive pressure value not lower than the given value to ensure the real-time match between the guide wheel and the rail. 4. Self-locking device for changing direction of public railway On the console of the dual-purpose vehicle, a switch between railway and highway mode is set, and when the railway and highway operations are switched, the When the switch is turned to the railway mode, the steering gear is locked and the steering wheel cannot be turned. When the switch is turned to the road mode In the mode, the steering gear works and the steering wheel can be rotated. damage and casualties. The dual-purpose vehicle is equipped with reliable safety protection and insurance measures, which can effectively prevent misoperation and accidents from causing the equipment to fail. 3. Public-rail conversion safety self-locking device 5. Driving video surveillance system Install surveillance cameras at the front and rear couplers and four guide wheels, and install a color display on the cab console 2. Reversing and shifting operation bundle, has been in working condition. The lock switch can be used to control the lift of the guide wheel, and the logic is set in the control to select the road mode to control the lift of the guide wheel, screen, which can monitor the retractable state, working condition and coupling connection of the guide wheel in real time. 1. The safety warning device is equipped with a strobe light and a buzzer alarm on the body of the dual-purpose vehicle, which starts to sound when the whole vehicle is powered on until the end of the operation. When you step on the pedal, increase the fuel supply to the engine; when you release the pedal, decrease the fuel supply to the engine. The solenoid valve and the blocking valve on the control valve of the transmission are controlled, so as to realize the reversing and shifting of the dual-purpose vehicle. The upper and lower chambers of the hydraulic cylinder that controls the lifting and lowering of the guide wheel of the dual-purpose vehicle are respectively provided with hydraulic control check valves to ensure the guiding The stability of the wheel; the upper chamber of the oil cylinder is provided with an accumulator and a pressure sensor to ensure the positive pressure of the upper chamber of the oil cylinder, so that the guide It is necessary to select the mode through the railway road mode switch, and then operate the guide wheel lift switch and safety connection at the same time. Control on signal Reversing and shifting operation adopts electro-hydraulic control. By controlling the handle of the gear selector, the input of the selector is controlled. Machine Translated by Google 6. Emergency brake button Sudden braking, emergency shutdown of the engine, and the transmission in neutral, ensure that the dual-purpose vehicle stops immediately. storage function. There is a one-button emergency brake button on the console of the dual-purpose vehicle and on the side of the vehicle body. 7. The function of not starting when the wind pressure is low The dual-purpose vehicle is equipped with the function that the vehicle cannot be started when the wind pressure is low, that is, when the wind pressure of the vehicle is lower than 0.5MPa, the vehicle cannot be activated. Can not run, to ensure the safe driving of the dual-purpose vehicle.