WO2012049769A1 - 鉄道車両の車体傾斜装置 - Google Patents
鉄道車両の車体傾斜装置 Download PDFInfo
- Publication number
- WO2012049769A1 WO2012049769A1 PCT/JP2010/068170 JP2010068170W WO2012049769A1 WO 2012049769 A1 WO2012049769 A1 WO 2012049769A1 JP 2010068170 W JP2010068170 W JP 2010068170W WO 2012049769 A1 WO2012049769 A1 WO 2012049769A1
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- WIPO (PCT)
- Prior art keywords
- vehicle body
- tilting
- pair
- compressed air
- air springs
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/10—Bolster supports or mountings incorporating fluid springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/10—Railway vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/45—Rolling frame vehicles
Definitions
- the present invention relates to a vehicle body tilting device for a railway vehicle in which the tilt of the vehicle body is controlled by exchanging compressed air between a pair of left and right air springs.
- Patent Document 2 discloses a vehicle body tilting device for a railway vehicle that compensates for the lack of cant.
- it is a structure that exchanges compressed air between the left and right air springs.
- FIG. 9 is a diagram conceptually showing a railway vehicle equipped with such a conventional vehicle body tilting device, and shows a state during curve traveling.
- FIG. 10 is a conceptual diagram showing the vehicle body tilt control device.
- An air pump 105 is disposed between the left and right air springs 101 and 102, and each is connected by a pipe 106.
- the air pump 105 uses a roots type in which the flow velocity and the flow rate are almost uniquely determined by the rotation speed and the rotation speed and capable of reversible variable speed rotation.
- the reversible variable speed motor 111 that drives the air pump 105 shown in FIG. Therefore, compressed air is sent from the air spring 101 inside the curve to the air spring 102 outside the curve by the air pump 105. As shown in FIG. 9, the air spring 101 inside the curve is lowered, while the air spring 102 outside the curve is raised, and the vehicle body 110 is prevented from being tilted due to centrifugal force during curve running.
- a conventional vehicle body tilting device has a structure in which a compressor or an air tank having a large capacity is used or a plurality of small capacities are provided so that the pressure of compressed air does not decrease. Such a structure has a problem that the space under the vehicle body where the compressor and the air tank are installed is narrow, so that the installation is difficult and other initial costs and maintenance costs are increased.
- the present invention provides a vehicle body inclination of a railway vehicle in which the inclination of the vehicle body is controlled by exchanging compressed air between a pair of left and right air springs without causing the pump to operate excessively.
- An object is to provide an apparatus.
- the vehicle body tilting device for a railway vehicle extends and contracts the pair of left and right air springs by exchanging compressed air between the pair of left and right air springs disposed between the vehicle body and the carriage.
- One or two tilt control valves connected between the pair of air springs and between the pair of left and right air springs via the tilt control valve.
- a tilting pump connected to the control unit, and the tilting control valve and a control device for controlling the tilting pump.
- the one or two tilting control valves are compressed by the tilting pump.
- An annular flow path for recirculating air is configured, and the control device drives the tilting pump in advance before controlling the inclination of the vehicle body to recirculate compressed air in the annular flow path. Create a feed ready state ; Then, it switched to the tilt control valve at a predetermined timing, characterized in that from one of the pair of right and left air springs is obtained by the send compressed air to the other.
- the control device drives the tilting pump continuously or intermittently to create the feed preparation state.
- the tilt control valve is one 4-port solenoid valve, a connection pattern for sending compressed air from the left side to the right side of the pair of left and right air springs, and the pair of left and right air springs It is preferable to have a connection pattern for sending compressed air from the right side to the left side, and a connection pattern for blocking the gap between the pair of left and right air springs and constituting the annular flow path.
- the tilt control valve is two three-port solenoid valves, a connection pattern for sending compressed air from the left to the right of the pair of left and right air springs, and the pair of left and right air springs It is preferable to have a connection pattern for sending compressed air from the right side to the left side, and a connection pattern for blocking the gap between the pair of left and right air springs and constituting the annular flow path.
- a vehicle body tilting apparatus for expanding and contracting the pair of left and right air springs by exchanging compressed air between the pair of left and right air springs disposed between the vehicle body and the carriage.
- One or two tilt control valves connected between the pair of air springs, and the pair of left and right air springs via the tilt control valves.
- a tilting pump connected between the tilting control valve and the tilting pump, and a control device for controlling the tilting pump.
- a low pressure side tank is provided in the downstream pipe to be connected, and a high pressure side tank is provided in the upstream pipe to which both are connected, and the control device drives the inclination pump in advance before controlling the inclination of the vehicle body.
- the low pressure side tank and the Create a feed preparation state that caused a pressure difference with the pressure side tank switch the tilt control valve at a predetermined timing, and send compressed air from the high pressure side tank to one of a pair of left and right air springs, Compressed air is drawn from the other air spring to the low-pressure side tank.
- the tilt control valve is one 4-port solenoid valve, a connection pattern for sending compressed air from the left side to the right side of the pair of left and right air springs, and the pair of left and right air springs It is preferable to have a connection pattern for sending compressed air from the right side to the left side, and a connection pattern for blocking between the pair of left and right air springs and between the tilting pump and the pair of left and right air springs.
- the vertical displacement of the height control valve provided for each of the pair of left and right air springs and the height adjusting rod connected to the cart side is fixed to the vehicle body side.
- a height adjusting mechanism having a link mechanism for transmitting rotation to the valve stem of the height control valve and an actuator for providing rotation to the valve stem in the link mechanism; Compressed air is sent from one of the air springs to the other, and the actuator is driven at a predetermined timing so that compressed air is supplied to and exhausted from the left and right air springs via the height control valve.
- the actuator is preferably an air cylinder that is integrally formed coaxially with the height adjusting rod.
- the actuator is preferably a rotary solenoid that rotates the valve rod.
- the tilting pump before the tilt of the vehicle body is controlled, the tilting pump is driven in advance, and the feed ready state is created by recirculating the compressed air in the annular flow path, or the tilting pump is driven to reduce the low pressure side.
- exchange the compressed air using a tilting pump between the pair of left and right air springs to tilt the vehicle body Is possible. Therefore, it is possible to reduce the consumption of compressed air that has been released to the atmosphere so far, and it is not necessary to increase the size of the compressor or the main tank, or to provide a plurality of main tanks, thereby suppressing initial costs and maintenance costs.
- the production of compressed air by the compressor can be reduced, and energy efficiency is improved.
- Car body 2 Carriages 3L, 3R Air springs 4L, 4R Height adjusting rods 5L, 5R Height control valves 6L, 6R Height adjusting cylinders 8L. 8R valve rod 9L, 9R insulator 12 air tank 18L, 18R stroke adjusting valve 20 controller 30 pump tilt mechanism 32L, 32R pipe 33 tilt control valve 34 tilt pump 35 upstream pipe 36 downstream pipe
- FIG. 1 is a schematic view showing an embodiment of a vehicle body tilting apparatus.
- the railway vehicle has a vehicle body 1 mounted on a carriage 2 via left and right air springs 3L, 3R.
- the left and right air springs 3L and 3R have a symmetrical structure. For this reason, in the drawings and the following description, when “L” is appended to the number, the left side indicates the one disposed on the left side, and when “R” is appended, the one disposed on the right side is illustrated.
- the air springs 3L and 3R are provided with a height adjusting mechanism constituted by height adjusting rods 4L and 4R, height control valves 5L and 5R, and the like. This is to incline the vehicle body to compensate for the shortage of the cant and to keep the vehicle height constant with respect to load fluctuations. Supply and exhaust compressed air to and from the air springs 3L and 3R. , 3R height adjustment.
- the height adjusting rods 4L and 4R are provided with height adjusting cylinders 6L and 6R on the upper coaxial axis as actuators.
- the height adjusting cylinders 6L and 6R are extended by compressed air and contracted by a spring force, and insulators 9L and 9R are connected to the ends.
- FIG. 2 is a plan view showing a connecting portion from the height adjusting cylinder 6R to the height control valve 5R.
- the height control valve 5R is a three-port switching valve, and a valve rod 8R for operating the switching of each port is projected, and a lever 9R is connected to the valve rod 8R in an orthogonal direction. Therefore, a link mechanism is constituted by the height adjusting rod 4R, the lever 9R, and the valve rod 8R integrated with the height adjusting cylinder 6R, and the height adjusting rod 4R is displaced vertically and the height adjusting cylinder 6R is expanded and contracted.
- the lever 9R is swung, the valve rod 8R is rotated, and the port of the height control valve 5R is switched.
- the height control valves 5L and 5R are provided on the vehicle body 1 side. Therefore, if the air springs 3L and 3R expand and contract in the vertical direction in the state shown in FIG. 1, the distance between the vehicle body 1 and the carriage 2 changes, and accordingly the height adjusting rods 4L and 4R are displaced in the vertical direction and the lever 9L. , 9R will swing.
- the direction of rotation of the valve rods 8L and 8R that is, the switching of the ports of the height control valves 5L and 5R is determined by the swinging direction of the levers 9L and 9R. Then, by switching the ports, compressed air is supplied from the main tank 12, which is an air source reservoir, to the air springs 3L, 3R side, or compressed air is discharged from the air springs 3L, 3R to the atmosphere.
- FIG. 3 is a conceptual diagram showing a piping structure between the main tank 12 through which the compressed air flows through the height control valve 5R and the air spring 3R.
- the air spring 3R is connected to the main tank 12 by a pipe 13R, and between the height control valve 5R, a pipe line 15R provided with a normally closed type on-off valve 14R and a throttle 16R are provided.
- the pipe 17R is connected in parallel. This is because even when the power is turned off, the compressed air flows through the throttle 16R, and the compressed air is supplied and exhausted with a reduced flow rate to the air spring 3R.
- FIG. 4 is a schematic view showing an air spring and a height adjusting mechanism.
- the main tank 12 is connected to the cylinder chamber of the height adjusting cylinder 6R via a stroke adjusting valve 18R composed of a pair of solenoid valves 181 and 182.
- the height adjusting cylinder 6R is controlled by the stroke adjusting valve 18R. 6R expansion and contraction is performed.
- the height adjusting cylinder 6R is composed of a pair of upper and lower air cylinders 161 and 162, and each of the height adjusting cylinders 6R and 162 is expanded and contracted by opening and closing the electromagnetic valves 181 and 182. The stroke of the cylinder 6R is adjusted.
- the control device 20 controls the raising and lowering of the vehicle body 1 and the inclination of the vehicle body 1, and as shown in FIG. 1, a vehicle height control unit 21, an abnormality diagnosis unit 22, a track data storage unit 23, and a spot information detection unit 24 have.
- the vehicle height control unit 21 is connected to a platform height detection sensor 25 provided on the vehicle body 1, and the point information detection unit 24 is connected to the ground such as a data depot installed in front of the vehicle speed detection and the curve part of the traveling track.
- a vehicle speed / depot signal sensor 26 for receiving a point information signal from the child is connected.
- FIG. 5 is a conceptual diagram showing the pump tilt mechanism of the left and right air springs 3L, 3R.
- the pump tilting mechanism 30 sends compressed air discharged from the contraction-side air spring to an expansion-side air spring that inflates.
- the air springs 3L and 3R are connected to the main tank 12 via height control valves 5L and 5R, respectively.
- the pipes 32L and 32R branch to the pipes 31L and 31R between the on-off valves 14L and 14R and the throttles 16L and 16R (see FIG. 3) and the air springs 3L and 3R. is doing.
- the left and right air springs 3L and 3R are connected to each other via a tilt control valve 33 and a tilt pump (booster pump) 34.
- the tilting control valve 33 is a four-port solenoid valve, and is connected to the piping 32L, 32R on the air springs 3L, 3R side and the upstream pipe 35 and the downstream pipe 36 on the tilting pump 34 side.
- the tilting control valve 33 can be connected to the left and right air springs 3L, 3R by alternately switching the input side or the output side of the tilting pump 34, and further the air spring 3L. , 3R, and a central block 332 that cuts off the connection between the three flow paths.
- the central block 332 is configured so that the upstream pipe 35 and the downstream pipe 36 on the tilting pump 34 side communicate with each other in addition to blocking the pipes 32L and 32R.
- the tilt control valve 33 during straight running without tilting the vehicle body 1 is a connection pattern of the central block 332, and the left and right air springs 3L and 3R are blocked, while the upstream pipe 35 and the downstream pipe 36 is connected, and an annular flow path is configured through a tilting pump 34.
- the tilting pump 34 cannot cope with a sudden driving with a large load, the idling pump 34 is idled with a small load. This is because the compressed air recirculates in the annular flow path, so that the tilting pump 34 is driven in advance, and then a feed preparation state for sending the compressed air between the air springs 3L and 3R is created.
- the upstream pipe 35 and the downstream pipe 36 are not long pipes, or the tilting pump 34 is not operated continuously, but is driven intermittently. It is necessary to devise such as doing.
- the tilting control valve 33 and the pump motor 37 of the tilting pump 34 are connected to the control device 20, and control for tilting the vehicle body is performed by a command signal from the vehicle height control unit 21 (see FIG. 1).
- the tilt control of the vehicle body 1 will be described.
- the height adjusting rods 4L and 4R are relatively displaced in the vertical direction with respect to the vehicle body 1, and accordingly, the levers 9L and 9R are swung, and the valve rods 8L and 8L 8R rotates and the height control valves 5L and 5R are switched. Since the on-off valves 14L and 14R (see FIG. 3) are closed, compressed air flows through the throttle 16, and the air springs 3L and 3R are supplied and exhausted. When the insulators 9L and 9R return to the horizontal state, the height control valves 5L and 5R are switched again to stop the supply and exhaust of the compressed air.
- the air springs 3L and 3R are crushed and the vehicle body 1 is lowered, so that the height adjusting rods 4L and 4R are relatively raised, and the height control valves 5L and 5R are switched. Then, compressed air is sent from the main tank 12 to the air springs 3L and 3R.
- the passenger gets off and gets lighter the vehicle body 1 is raised and the height adjusting rods 4L and 4R are relatively lowered. Therefore, the height control valves 5L and 5R are switched, and the compressed air in the air springs 3L and 3R is switched. Is released into the atmosphere.
- the insulators 9L, 9R return to the horizontal state, the ports are shut off, the supply / exhaust of the compressed air is stopped, and the vehicle body 1 is Stable at a predetermined height.
- the height adjustment mechanism can control traveling of the vehicle body 1 by controlling the supply and exhaust of compressed air to the air springs 3L and 3R. That is, in this embodiment, in addition to the supply and exhaust of compressed air performed between the left and right air springs 3L and 3R by the pump tilt mechanism 30, height control valves 5L and 5R in which the height adjusting cylinders 6L and 6R are expanded and contracted. The inclination control of the vehicle body 1 is performed by the switching.
- the pump tilting mechanism 30 causes the vehicle body 1 to tilt by sending compressed air from the contraction-side air spring 3L to the extension-side air spring 3R.
- the height adjustment cylinders 6L and 6R are further expanded and contracted to switch the height control valves 5L and 5R, and compressed air is supplied to and exhausted from the air springs 3L and 3R, thereby finely adjusting the inclination of the vehicle body 1. Is called.
- the vehicle speed / depot signal sensor 26 receives a point information signal from a ground element such as a data depot.
- the vehicle speed detected by the vehicle height control unit 21 is compared with the track data stored in the track data storage unit 23.
- the vehicle body tilt control is executed according to the vehicle body tilt control program stored in the vehicle height control unit 21 based on the curve portion information such as the curvature of the curved portion and the cant amount.
- the pump tilt mechanism 30 shown in FIG. 5 is in a so-called idling state in which the tilt pump 34 is continuously or intermittently driven by the pump motor 37 during traveling. At that time, the compressed air in the pipe is sent from the upstream pipe 35 to the downstream pipe 36 by the tilting pump 34, returns to the upstream pipe 35 via the tilting control valve 33, and is refluxed. Thereby, the feed preparation state for sending compressed air between the air springs 3L and 3R after that is created.
- a command signal is sent from the vehicle height control unit 21 and the control valve 33 for tilting is switched.
- the tilting pump 34 is driven intermittently, it is driven in advance before the tilt control valve 33 is switched.
- the tilt control valve 33 is switched while the operation is continued.
- the tilt control valve 33 When the vehicle body 1 is tilted to the left side, the tilt control valve 33 is switched to the left block 331 at a predetermined timing based on the curve portion information, the pipe 32L and the upstream pipe 35 are connected, and the pipe 32R and the downstream pipe 36 are connected. Connected. Therefore, the compressed air in the air spring 3L is drawn out by the tilting pump 34 and sent into the opposite air spring 3R. The left air spring 3L is lowered by the discharge of compressed air, and the right air spring 3R is raised by the supply of compressed air, and the vehicle body 1 is tilted to the left. Before the vehicle body 1 is tilted to the target angle, the tilt control valve 33 is switched to the connection of the central block 332, and at the same time, the tilt control is switched by expansion and contraction of the height adjusting cylinders 6L and 6R.
- the height adjusting cylinder 6L contracts by the control of the stroke adjusting valve 18L in the left air spring 3L. Therefore, the height control valve 5L is switched, and a certain amount of compressed air in the air spring 3L is released to the atmosphere.
- the stroke adjusting valve 18R is controlled, and compressed air is supplied from the main tank 12 to the height adjusting cylinder 6R to extend. Therefore, the height control valve 5R is switched, and the compressed air in the main tank 12 is sent to the air spring 3R.
- the vehicle body 1 is returned to the horizontal state with the end of the curved portion of the traveling track.
- the inclination control valve 33 is switched to the right block 333, the pipe 32L and the downstream pipe 36 are connected, and the pipe 32R and the upstream pipe 35 are connected. Therefore, the compressed air in the air spring 3R is drawn out by the tilting pump 34 and sent into the opposite air spring 3L.
- the expanded right air spring 3R is lowered by the discharge of the compressed air, and conversely the left air spring 3L contracted is increased by the supply of compressed air, so that the vehicle body 1 is returned to the horizontal state.
- the expansion and contraction of the height adjusting cylinders 6L and 6R is controlled, and fine adjustment is performed by supplying and exhausting compressed air to and from the air springs 3L and 3R via the height control valves 5L and 5R.
- the above tilt and tilt return are performed in the same manner for the right tilt.
- the vehicle body tilting apparatus of the present embodiment since the compressed air is exchanged between the left and right air springs 3L and 3R by the pump tilting mechanism 30, the consumption of the compressed air that has been released to the atmosphere is reduced. Is possible. Therefore, even if the inclination control of the vehicle body 1 is repeated in a section where curves are continuous, consumption of compressed air can be greatly suppressed, and a compressor (not shown) and a main tank 12 need to be enlarged or provided in plurality. Disappears. Therefore, the vehicle body tilting apparatus of the present embodiment can reduce initial costs and maintenance costs. Moreover, the production of compressed air by the compressor can be reduced, and energy efficiency is improved.
- the above effect is achieved by idling the tilting pump 34.
- the pump tilting mechanism 30 has a simple configuration and can be provided at low cost.
- the tilting pump 34 may generate an internal pressure difference (about 0 to 0.1 MPa) between the left and right air springs 3L and 3R, it can be driven with less power consumption. If the tilting pump 34 is not driven continuously but is driven intermittently as necessary, the power consumption can be further reduced. Further, since the tilting pump 34 actively moves the compressed air, the expansion and contraction speeds of the left and right air springs 3L and 3R can be increased, and the tilting and tilting return speeds can be increased.
- FIG. 6 is a conceptual diagram showing the pump tilt mechanism of the present embodiment.
- symbol is attached
- this pump tilting mechanism 40 an upstream pipe 35 and a downstream pipe 36 are connected to the tilting pump 34, a low pressure side tank 41 is connected to the upstream pipe 35, and a high pressure side tank 42 is connected to the downstream pipe 36. ing.
- a pressure difference is generated between the low pressure side tank 41 and the high pressure side tank 42, and a feed preparation state for sending compressed air between the air springs 3L and 3R is created.
- the main tank 12 serving as an air source reservoir has a size of 100 liters, whereas the low-pressure side tank 41 and the high-pressure side tank 42 are 15 liters and are small-sized tanks.
- the control valve 43 for tilting of the 4-port solenoid valve is connected to the central block 432 that cuts off all connected pipes, and the input side (the low pressure side tank 41 side) of the tilting pump 34 with respect to the left and right air springs 3L and 3R.
- the left block 431 and the right block 433 can be connected by alternately switching the output side (the high-pressure side tank 42 side).
- the high-pressure tank 42 is provided with a pressure sensor 44, and the control device 20 is connected to the pressure sensor 44, the pump motor 37, and the tilt control valve 43.
- the low-pressure side tank 41 is provided with a low-pressure limit switch and a negative pressure relief so that the operation in the feed preparation state described later is more stable.
- the pump tilting mechanism 40 of the present embodiment drives the tilting pump 34 in advance before controlling the tilt of the vehicle body 1, the internal pressure of the low-pressure side tank 41 is reduced to the set value, and the internal pressure of the high-pressure side tank 42 is set to the set value.
- the high pressure side tank 42 is pressurized to about 0.9 MPa, which is the same as the main tank 12, and the low pressure side tank 41 is at atmospheric pressure. Depressurized to the extent.
- the pressure in the high-pressure side tank 42 is detected by the pressure sensor 44, and the drive of the pump motor 37 is controlled based on the detection signal.
- a feed preparation state for sending compressed air between the air springs 3L and 3R is created.
- the tilt control valve 43 is switched to the left block 431 at a predetermined timing. Therefore, the pipe 32L and the upstream pipe 35 are connected, and the pipe 32R and the downstream pipe 36 are connected. Since the internal pressure of the air springs 3L, 3R is about 0.3 to 0.5 MPa, the compressed air in the air spring 3L is drawn into the low-pressure side tank 41 at atmospheric pressure, and conversely, into the air spring 3R, Compressed air flows from the high-pressure side tank 42 whose pressure is higher than the internal pressure. The left air spring 3L is lowered by the exhaust of compressed air, and the right air spring 3R is raised by the supply of compressed air, whereby the vehicle body 1 tilts to the left.
- the tilt control valve 43 is switched to the connection of the central block 432 before the vehicle body 1 tilts to the target angle.
- the inclination control of the vehicle body 1 is performed by the expansion and contraction of the height adjusting cylinders 6L and 6R shown in FIG. That is, the height control valves 5L and 5R are switched by the expansion and contraction of the height adjustment cylinders 6L and 6R, the compressed air is supplied to and exhausted from the air springs 3L and 3R, and the inclination of the vehicle body 1 is finely adjusted.
- the vehicle body 1 is returned to the horizontal state with the end of the curved portion of the traveling track.
- the tilt control valve 43 is switched to the right block 433, the air spring 3L is connected to the high pressure side tank 42, and the air spring 3R is connected to the low pressure side tank 41. Therefore, the compressed air in the air spring 3R is discharged, the compressed air is sent into the opposite air spring 3L, and the expanded right air spring 3R is lowered by the exhaust of the compressed air, and conversely contracted on the left side
- the compressed air is supplied to the air spring 3L, the body 1 is returned to the horizontal state.
- the expansion and contraction of the height adjusting cylinders 6L and 6R is controlled, and fine adjustment is performed by supplying and exhausting compressed air to and from the air springs 3L and 3R via the height control valves 5L and 5R.
- the above tilt and tilt return are performed in the same manner for the right tilt.
- the vehicle body tilting apparatus of the present embodiment since the compressed air is exchanged between the left and right air springs 3L and 3R by the pump tilting mechanism 40, the consumption of compressed air that has been released to the atmosphere is reduced. It becomes possible. Therefore, even if the inclination control of the vehicle body 1 is repeated in a section where curves are continuous, consumption of compressed air can be greatly suppressed, and a compressor (not shown) and the main tank 12 need to be enlarged or provided in plurality. Disappears. Therefore, the vehicle body tilting apparatus of the present embodiment can reduce initial costs and maintenance costs. Moreover, the production of compressed air by the compressor can be reduced, and energy efficiency is improved.
- such an effect is achieved by creating a pressure difference between the air springs 3L and 3R in the low-pressure side tank 41 and the high-pressure side tank 42 with the tilting pump 34. It has a simple configuration and can be provided at low cost. Further, since the tilting pump 34 may be driven as necessary, the power consumption can be further reduced.
- FIG. 7 is a conceptual diagram showing the pump tilt mechanism of the present embodiment.
- the same components as those in the first embodiment will be described with the same reference numerals.
- this pump tilt mechanism 50 an upstream pipe 35 and a downstream pipe 36 are connected to the tilt pump 34, and a first tilt control valve 51 and a second tilt control valve 52 are connected to the tilt pump 34. .
- inexpensive three-port valves are used as the first and second tilt control valves 51 and 52.
- the pipes 32L and 32R branch into pipes 531 and 532 and pipes 541 and 542, respectively, and are connected to the first and second tilt control valves 51 and 52 as illustrated.
- the first and second tilt control valves 51 and 52 and the pump motor 37 of the tilt pump 34 are connected to the control device 20.
- the pipes 531 and 541 are connected to the first block 511 of the first tilt control valve 51, and the pipes 532 and 542 are connected to the second block 522 of the second tilt control valve 52.
- the tilting pump 34 is driven continuously or intermittently, so-called idling is performed.
- the compressed air in the pipe is sent from the upstream pipe 35 to the downstream pipe 36 by the tilt pump 34, flows from the second tilt control valve 52 to the pipe 531 through the pipe 532, and the first tilt control valve 51. Circulates in the annular flow path returning to the upstream pipe 35 via the. Thereby, the feed preparation state for sending compressed air between the air springs 3L and 3R after that is created.
- the second tilt control valve 52 is switched to the first block 521.
- the left air spring 3L remains connected to the downstream pipe 35, and the right air spring 3R is connected to the upstream pipe 36 via the pipe 542. Therefore, the compressed air in the air spring 3L is discharged by the tilting pump 34 and sent into the opposite air spring 3R.
- the left air spring 3L is lowered by the exhaust of compressed air, and the right air spring 3R is raised by the supply of compressed air, whereby the vehicle body 1 tilts to the left.
- the second tilt control valve 52 is switched to the second block 522 before the vehicle body 1 tilts to the target angle. Then, similarly to the first embodiment, the control is switched to the tilt control by the expansion and contraction of the height adjusting cylinders 6L and 6R shown in FIG. That is, the height control valves 5L and 5R are switched by the expansion and contraction of the height adjusting cylinders 6L and 6R, the compressed air is supplied to and exhausted from the air springs 3L and 3R, and the inclination of the vehicle body 1 is finely adjusted. .
- the vehicle body 1 is returned to the horizontal state with the end of the curved portion of the traveling track.
- the first tilt control valve 51 is switched to the second block 512.
- the left air spring 3L remains connected to the upstream pipe 36, and the right air spring 3R is connected to the downstream pipe 35 via the pipe 541. Therefore, the compressed air in the air spring 3R is discharged by the tilting pump 34 and sent into the opposite air spring 3L.
- the air spring 3R on the right side that has been inflated is lowered by the exhaust of compressed air, and the air spring 3L on the left side that has been contracted is raised by the supply of compressed air, so that the vehicle body 1 is returned to the horizontal state.
- the expansion and contraction of the height adjusting cylinders 6L and 6R is controlled, and fine adjustment is performed by supplying and exhausting compressed air to and from the air springs 3L and 3R via the height control valves 5L and 5R.
- the above tilt and tilt return are performed in the same manner for the right tilt. In other words, in order to incline to the right side, the above may be reversed.
- the first tilt control valve 51 is switched to the second block 512, and when returning to the horizontal state, the second tilt control valve 52 is switched to the first block 521.
- the vehicle body tilting apparatus of the present embodiment since the compressed air is exchanged between the left and right air springs 3L and 3R by the pump tilting mechanism 50, the consumption of the compressed air that has been released to the atmosphere is reduced. Is possible. Even if the inclination control of the vehicle body 1 is repeated in a section where curves are continuous, consumption of compressed air can be greatly suppressed, and it is not necessary to increase the size of the compressor or the main tank 12 (not shown) or to provide a plurality of them. . Since inexpensive three-port valves are also used for the first and second tilt control valves 51 and 52, the vehicle body tilting apparatus of the present embodiment can reduce initial costs and maintenance costs. Moreover, the production of compressed air by the compressor can be reduced, and energy efficiency is improved.
- such an effect is achieved by idling the tilting pump 34.
- a pump tilting mechanism 50 has a simple configuration and can be provided at a low cost.
- the tilting pump 34 may generate an internal pressure difference (about 0 to 0.1 MPa) between the left and right air springs 3L and 3R, it can be driven with less power consumption. If the tilting pump 34 is not driven continuously but is driven intermittently as necessary, the power consumption can be further reduced. Furthermore, since the tilting pump 34 actively moves the compressed air, the expansion and contraction speeds of the left and right air springs 3L and 3R can be increased, and the tilting speed can be increased.
- the vehicle body tilting device of the above embodiment shows a combination of a pump tilting mechanism and a height adjusting mechanism composed of height control valves 5L, 5R and the like.
- the height adjusting mechanism is an auxiliary configuration to the pump tilting mechanism that is the main configuration of the vehicle body tilting device, but may be another height adjusting mechanism as described below in addition to the above embodiment.
- FIG. 8 is a cross-sectional view showing a part of such another height adjusting mechanism. Although the configuration on the right side is shown, the configuration on the left side is the same. Moreover, in the following description, the same code
- This height adjusting mechanism is configured by omitting the height adjusting cylinder 6R shown in FIG. 1 and directly connecting the height adjusting rod 4R and the insulator 9R to form a link mechanism.
- a rotary solenoid 60 is provided as an actuator between the valve stem 8R and the lever 9R of the height control valve 5R. That is, in the first embodiment, the height control valve 5R is switched by expansion and contraction of the height adjusting cylinder 6R, but in the present embodiment, the rotation is performed by the rotation of the rotary solenoid 60. It is the same in that the valve rod 8R is rotated by the vertical displacement of the height adjusting rod 4R and the height control valve 5R is switched.
- the rotary solenoid 60 is provided in a main body 61 fixed to the vehicle body 1, and shafts 62 and 63 arranged coaxially project from the main body 61.
- a connecting member 64 is fixed to the shaft 62, and the connecting member 64 is connected to a cylindrical rotating body 65 that is rotatably supported in the main body 61 by a roller bearing 66.
- a coil 67 is integrally provided in the rotating body 65, and a shaft 63 and an armature 68 are integrally inserted therein so as to be rotatable.
- a return spring 69 is connected between the shaft 63 and the rotating body 65.
- the return spring 69 transmits the rotation of the shaft 62 to the other shaft 63.
- the shaft 63 When the coil 34 is excited and the shaft 63 rotates, the shaft 63 separated from the shaft 62 can be rotated. It has become.
- the shaft 63 is connected to the valve rod 8R of the height control valve 5R via a link lever 70. Accordingly, when the rotation of the shaft 62 is transmitted or the shaft 63 is rotated by the excitation of the coil 67, the valve rod 8R is rotated via the link lever 70, and the height control valve 5R is switched.
- the height adjusting mechanism provided with the rotary solenoid 60
- the vehicle body 1 rises and falls with the load fluctuation, and the distance from the carriage 2 changes.
- the height adjusting rods 4L, 4R (see FIG. 1) are relatively displaced in the vertical direction with respect to the vehicle body 1, and accordingly, the levers 9L, 9R are shaken, and the valve rods 8L, 8R are passed through the shafts 63, 63. Rotates.
- the height control valves 5L and 5R are switched, and the air springs 3L and 3R are supplied and exhausted.
- the height control valves 5L and 5R are switched again to stop the supply and exhaust of the compressed air.
- the rotary solenoid 60 rotates the shaft 63, and the rotation of the valve rods 8L, 8R causes the height control valves 5L, Switching of 5R is performed. Therefore, compressed air is supplied to and exhausted from the air springs 3L and 3R, and the inclination of the vehicle body 1 is adjusted.
- the vehicle body tilting apparatus of the railway vehicle which concerns on this invention, this invention is not limited to these, A various change is possible in the range which does not deviate from the meaning.
- the combination of the height adjusting mechanism and the pump tilting mechanism has been described as the vehicle body tilting device.
- the vehicle body tilting device is configured only by the pump tilting mechanism. May be configured.
- the tilt control valve 33 shown in FIG. 5 may be replaced with a proportional control valve so that delicate tilt control with the flow rate adjusted can be performed.
- a four-port solenoid valve is used as the tilt control valve 43, but a circuit may be configured by combining two three-port solenoid valves as in the third embodiment.
- a rotary solenoid is shown and described as an example of an actuator constituting the height adjusting mechanism.
- an electromagnetic rotary actuator such as a step motor or a servo motor, or a rotary actuator using pneumatic pressure may be used.
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Abstract
Description
上記鉄道車両の車体傾斜装置では、前記傾斜用制御弁が、一つの4ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間を遮断すると共に前記環状流路を構成する接続パターンとを有するものであることが好ましい。
上記鉄道車両の車体傾斜装置では、前記傾斜用制御弁が、二つの3ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間を遮断すると共に前記環状流路を構成する接続パターンとを有するものであることが好ましい。
上記鉄道車両の車体傾斜装置では、前記傾斜用制御弁が、一つの4ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間及び前記傾斜用ポンプと前記左右一対の空気バネとの間を遮断する接続パターンとを有するものであることが好ましい。
上記鉄道車両の車体傾斜装置では、前記アクチュエータが、前記高さ調節棒と同軸上に一体に形成されたエアシリンダであることが好ましい。
上記鉄道車両の車体傾斜装置では、前記アクチュエータが、前記弁棒を回転させるロータリーソレノイドであることが好ましい。
2 台車
3L,3R 空気バネ
4L,4R 高さ調節棒
5L,5R 高さ制御弁
6L,6R 高さ調整用シリンダ
8L.8R 弁棒
9L,9R 梃子
12 空気タンク
18L,18R ストローク調整弁
20 制御装置
30 ポンプ傾斜機構
32L,32R 配管
33 傾斜用制御弁
34 傾斜用ポンプ
35 上流管
36 下流管
次に、本発明に係る鉄道車両の車体傾斜装置について第2実施形態を説明する。第2実施形態は、第1実施形態を構成する図5に示したポンプ傾斜機構30を変更するものである。図6は、本実施形態のポンプ傾斜機構について示した概念図である。なお、第1実施形態と同じ構成については同じ符号を付して説明する。このポンプ傾斜機構40は、傾斜用ポンプ34に上流管35と下流管36とが接続され、その上流管35には低圧側タンク41が接続され、下流管36には高圧側タンク42が接続されている。本実施形態は、傾斜用ポンプ34の駆動によって、低圧側タンク41及び高圧側タンク42に圧力差を生じさせ、空気バネ3L,3Rとの間で圧縮空気を送るための送り準備状態を作りだしている。なお、空気元溜であるメインタンク12の容積が100リットルの大きさであるのに対し、低圧側タンク41及び高圧側タンク42は15リットルと、小型のタンクである。
次に、本発明に係る鉄道車両の車体傾斜装置について第3実施形態を説明する。第3実施形態は、第1実施形態を構成する図5に示したポンプ傾斜機構30を変更するものである。図7は、本実施形態のポンプ傾斜機構について示した概念図である。第1実施形態と同じ構成については同じ符号を付して説明する。このポンプ傾斜機構50は、傾斜用ポンプ34に上流管35と下流管36とが接続され、その傾斜用ポンプ34に第1傾斜用制御弁51と第2傾斜用制御弁52が接続されている。本実施形態では、第1及び第2傾斜用制御弁51,52に安価な3ポート弁が使用されている。配管32L,32Rは、それぞれ配管531,532と配管541,542に分岐し、それらが図示するように第1及び第2傾斜用制御弁51,52に接続されている。そして、第1及び第2傾斜用制御弁51,52や傾斜用ポンプ34のポンプモータ37は、制御装置20に接続されている。
例えば、前記実施形態は、ポンプ傾斜機構に高さ調節機構を組み合わせたものを車体傾斜装置として説明したが、高さ調節機構による微調整を必要としない場合にはポンプ傾斜機構のみによって車体傾斜装置を構成するようにしたものであってもよい。
また、例えば、図5に示す傾斜用制御弁33を比例式の制御弁に換えることによって流量を調節した微妙な傾斜制御を行うことができるようにしてもよい。
また、前記第2実施形態では、傾斜用制御弁43に4ポート電磁弁を使用したが、第3実施形態のように3ポート電磁弁を2つ組み合わせて回路を構成するようにしてもよい。
また、前記実施形態では、高さ調節機構による微調整の制御をポンプ調節機構30の制御の後に行う場合を説明したが、両制御を重ねて行うようにしてもよい。
また、高さ調節機構を構成するアクチュエータの一例としてロータリーソレノイドを示して説明したが、その他にもステップモータやサーボモータのような電磁回転アクチュエータ、或いは空圧による回転アクチュエータであってもよい。
Claims (10)
- 車体と台車との間に配置された左右一対の空気バネの間で圧縮空気をやり取りすることにより、前記左右一対の空気バネを伸縮させて前記車体の傾きを制御する鉄道車両の車体傾斜装置において、
前記一対の空気バネの間に接続された一つ又は二つの傾斜用制御弁と、
前記傾斜用制御弁を介して前記左右一対の空気バネの間に接続された傾斜用ポンプと、
前記傾斜用制御弁及び前記傾斜用ポンプを制御するための制御装置とを有し、
前記一つ又は二つの傾斜用制御弁は、前記傾斜用ポンプが送る圧縮空気を還流させる環状流路を構成するものであり、
前記制御装置は、前記車体の傾きを制御する前に予め前記傾斜用ポンプを駆動させ、前記環状流路内で圧縮空気を還流させることにより送り準備状態を作りだしておき、所定のタイミングで前記傾斜用制御弁を切り換え、前記左右一対の空気バネの一方から他方へ圧縮空気を送るようにしたものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項1に記載する鉄道車両の車体傾斜装置において、
前記制御装置は、前記傾斜用ポンプを連続的または間歇的に駆動させて前記送り準備状態を作りだすものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項1に記載する鉄道車両の車体傾斜装置において、
前記傾斜用制御弁は、一つの4ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間を遮断すると共に前記環状流路を構成する接続パターンとを有するものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項1に記載する鉄道車両の車体傾斜装置において、
前記傾斜用制御弁は、二つの3ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間を遮断すると共に前記環状流路を構成する接続パターンとを有するものであることを特徴とする鉄道車両の車体傾斜装置。 - 車体と台車との間に配置された左右一対の空気バネの間で圧縮空気をやり取りすることにより、前記左右一対の空気バネを伸縮させて前記車体の傾きを制御する鉄道車両の車体傾斜装置において、
前記一対の空気バネの間に接続された一つ又は二つの傾斜用制御弁と、
前記傾斜用制御弁を介して前記左右一対の空気バネの間に接続された傾斜用ポンプと、
前記傾斜用制御弁及び前記傾斜用ポンプを制御するための制御装置とを有し、
前記傾斜用制御弁と前記傾斜用ポンプとの間には、両者を接続する下流管に低圧側タンクが、また両者を接続する上流管に高圧側タンクが設けられたものであり、
前記制御装置は、前記車体の傾きを制御する前に予め前記傾斜用ポンプを駆動させ、前記低圧側タンクと前記高圧側タンクとの間で圧力差を生じさせた送り準備状態を作りだしておき、所定のタイミングで前記傾斜用制御弁を切り換え、前記高圧側タンクから左右一対の空気バネの一方へ圧縮空気を送り込み、他方の空気バネから前記低圧側タンクへ圧縮空気を引き込むようにしたものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項5に記載する鉄道車両の車体傾斜装置において、
前記高圧側タンクに圧力センサが設けられ、前記制御装置は、前記圧力センサの検出値に基づいて前記傾斜用ポンプを制御するものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項5に記載する鉄道車両の車体傾斜装置において、
前記傾斜用制御弁は、一つの4ポート電磁弁であり、前記左右一対の空気バネの左側から右側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネの右側から左側へ圧縮空気を送る接続パターンと、前記左右一対の空気バネ間及び前記傾斜用ポンプと前記左右一対の空気バネとの間を遮断する接続パターンとを有するものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項1乃至請求項7のいずれかに記載する鉄道車両の車体傾斜装置において、
前記左右一対の空気バネに対して各々に設けられた高さ制御弁と、
台車側に連結された高さ調節棒の上下方向変位を車体側に固定された前記高さ制御弁の弁棒に回転として伝えるリンク機構と、
前記リンク機構内にあって前記弁棒に回転を与えるアクチュエータとを有する高さ調節機構を有し、
前記制御装置は、前記左右一対の空気バネの一方から他方へ圧縮空気を送ると共に、所定のタイミングで前記アクチュエータを駆動させ、前記高さ制御弁を介して前記左右一対の空気バネに対して圧縮空気を給排気させるようにしたものであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項8に記載する鉄道車両の車体傾斜装置において、
前記アクチュエータは、前記高さ調節棒と同軸上に一体に形成されたエアシリンダであることを特徴とする鉄道車両の車体傾斜装置。 - 請求項8に記載する鉄道車両の車体傾斜装置において、
前記アクチュエータは、前記弁棒を回転させるロータリーソレノイドであることを特徴とする鉄道車両の車体傾斜装置。
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JP2012517593A JP5591926B2 (ja) | 2010-10-15 | 2010-10-15 | 鉄道車両の車体傾斜装置および車体傾斜方法 |
CN2010800696304A CN103153749A (zh) | 2010-10-15 | 2010-10-15 | 铁路车辆的车体倾斜装置 |
AU2010362337A AU2010362337B2 (en) | 2010-10-15 | 2010-10-15 | Vehicle body tilting device for railway vehicle |
PCT/JP2010/068170 WO2012049769A1 (ja) | 2010-10-15 | 2010-10-15 | 鉄道車両の車体傾斜装置 |
US13/824,151 US8667900B2 (en) | 2010-10-15 | 2010-10-15 | Vehicle body tilting device and vehicle body tilting method for rail vehicle |
CA2807223A CA2807223C (en) | 2010-10-15 | 2010-10-15 | Vehicle body tilting device and vehicle body tilting method for rail vehicle |
EP10858349.3A EP2628651A4 (en) | 2010-10-15 | 2010-10-15 | Vehicle body tilting device for railway vehicle |
TW100135460A TWI434782B (zh) | 2010-10-15 | 2011-09-30 | Railway vehicle body tilting device |
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Cited By (3)
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JP2013220685A (ja) * | 2012-04-13 | 2013-10-28 | Nippon Sharyo Seizo Kaisha Ltd | 鉄道車両の車体傾斜装置 |
JP2015147478A (ja) * | 2014-02-05 | 2015-08-20 | 日本車輌製造株式会社 | 鉄道車両の車体傾斜装置 |
RU2800617C1 (ru) * | 2020-09-18 | 2023-07-25 | СиЭрЭрСи ЦИНДАО СЫФАН КО., ЛТД. | Система наклона и способ управления наклоном для железнодорожного транспортного средства и железнодорожное транспортное средство |
Also Published As
Publication number | Publication date |
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JPWO2012049769A1 (ja) | 2014-02-24 |
AU2010362337B2 (en) | 2014-03-27 |
US20130180427A1 (en) | 2013-07-18 |
TWI434782B (zh) | 2014-04-21 |
JP5591926B2 (ja) | 2014-09-17 |
CA2807223A1 (en) | 2012-04-19 |
AU2010362337A1 (en) | 2013-02-21 |
CN103153749A (zh) | 2013-06-12 |
CA2807223C (en) | 2014-05-13 |
EP2628651A1 (en) | 2013-08-21 |
TW201223810A (en) | 2012-06-16 |
EP2628651A4 (en) | 2017-12-06 |
US8667900B2 (en) | 2014-03-11 |
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