JPS6341787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle body tilt control device applied to a vehicle dedicated to ultra-high speed travel.

Recently, the development of ultra-high-speed railway technology has progressed,
When a vehicle passes at high speed on a curved track, the centrifugal force increases as the square of the speed, so in order to be able to run at ultra-high speeds without causing passengers to feel unbalanced acceleration, large cants are applied to the curved track. wear. However, if for some reason the vehicle stops on a curved trajectory with a large cant, the vehicle will tilt significantly, causing the passengers to experience extremely unpleasant unbalanced acceleration.
This not only causes discomfort, but also makes passengers feel anxious. For this reason, if you try to set a track for ultra-high speed running by setting the cant small so as not to make passengers feel uncomfortable when the vehicle stops, the curve radius of the track will become excessive and it will be very difficult to set the route etc. Significant restrictions arise, sometimes making it extremely uneconomical or impossible to install the line.

The present invention has been made in view of the above circumstances, and its purpose is to control the body inclination of ultra-high-speed vehicles to most economically solve the above-mentioned relationship between curve radius, speed, and unbalanced acceleration. The goal is to provide equipment.

In other words, the configuration of the present invention includes left and right air springs interposed between the vehicle body and the bogie, left and right hydraulic telescoping mechanisms interposed between the vehicle body and the bogie in parallel with the left and right air springs, An ultra-high-speed vehicle equipped with a tilt controller that expands and contracts the left and right hydraulic telescoping mechanism by supplying high-pressure oil in response to unbalanced acceleration, and forcibly controls the tilt of the vehicle body so that passengers do not feel the unbalanced acceleration. In the vehicle body inclination control device, a high pressure accumulator is provided in the vehicle body to supply high pressure oil to the inclination controller by manually or automatically opening a valve when the vehicle abnormally stops on a curved track with a large cant, An air source for the left and right air springs, a pair of left and right spring height control valves that control the respective heights of the left and right air springs to be constant, and a spring average that controls the average height of both the left and right air springs to be constant. A height control valve is provided, and in normal times, the left and right air springs are automatically returned to the state where they are individually connected to the air source via the left and right spring height control valves, and the high pressure oil is removed by opening the valve of the high pressure accumulator. A first hydraulic switching valve is provided which connects the left and right air springs to an air source via the spring average height control valve in a state where the left and right air springs are connected to each other by switching at a pressure of An electromagnetic switching valve and a second hydraulic switching valve are arranged in series in the middle of the piping between the equipment and the equipment, and the electromagnetic switching valve has an anti-rolling function in which the left and right hydraulic telescopic actuation mechanism restrains the rolling direction of the vehicle during normal times. The valve is closed in a state where the high pressure accumulator is opened, and the valve is opened in conjunction with the opening of the high pressure accumulator to enable oil to flow between the left and right hydraulic telescopic actuation mechanism and the second hydraulic switching valve. Normally, the second hydraulic switching valve automatically returns to the closed state, and when the electromagnetic switching valve is opened, the oil is free to flow between the left and right hydraulic telescoping mechanisms, and the anti-rolling mechanism is activated. The invention is characterized in that the valve is opened by the pressure of high-pressure oil from the high-pressure accumulator when released, thereby allowing oil to flow between the tilt control part and the hydraulic telescoping mechanism.

With the above configuration, in the vehicle body inclination control device for an ultra-high-speed vehicle of the present invention, during normal normal driving, the high-pressure accumulator remains closed, and the left and right air springs are independently activated by the first hydraulic switching valve. Connected to an air source via a height control valve, it acts as a buffer between the bogie and the car body, and maintains the rigidity of the car body in the rolling direction. The hydraulic telescoping mechanism acts simply as an anti-rolling device to supplement the vehicle body rolling support rigidity of the left and right air springs, thereby enabling predetermined high-speed driving.

In addition, when a vehicle abnormally stops on a sharply curved track with a large cant due to an accident or breakdown, the high-pressure accumulator opens manually or automatically to generate high-pressure oil, and the electromagnetic switching valve opens accordingly. At the same time, the second hydraulic switching valve is switched and opened by the pressure of the high-pressure oil, so that high-pressure oil from the high-pressure accumulator is supplied from the tilt controller to the left and right hydraulic expansion and contraction mechanisms according to the uneven acceleration. Then, the left and right hydraulic expansion/contraction operating mechanism expands and contracts to forcibly control the tilt of the vehicle body so that the unbalanced acceleration is not felt by each rider. At this time, the left and right air springs are communicated with each other by a first hydraulic switching valve that is automatically switched by the pressure of the high-pressure oil, and are connected to an air source via a spring average height control valve, thereby achieving an anti-rolling function. To enable smooth and correct tilt control of the vehicle body.

In addition, to control the body tilt of a vehicle stopped on a sharply curved track as mentioned above, it is sufficient to supply high-pressure oil once, and a high-pressure accumulator with a small capacity using a high-pressure gas cylinder and an accumulator is sufficient. Can be retained. Moreover, if you start driving again without turning off the control release switch etc. in the slope control state,
In response to changes in the cant of the track, the inclination controller operates at any time to supply high-pressure oil from the high-pressure accumulator to the left and right hydraulic telescopic actuation mechanisms so that passengers do not feel unbalanced acceleration. The high-pressure oil will run out shortly after it is consumed, but due to the pressure drop of this high-pressure oil, the first and second hydraulic switching valves will automatically return and switch, so the left and right hydraulic telescopic actuation mechanism will be disconnected from the tilt controller. The anti-rolling function is released as oil flows freely within the range between the left and right air springs, and at the same time, the left and right air springs are connected to the air source through individual spring height control valves. The vehicle body is held horizontally at a certain level with respect to the bogie, and the vehicle automatically returns to its normal running state. This way, even if the supply of high-pressure oil from the high-pressure accumulator is lost, there will be no problems such as abnormal rolling motion of the vehicle body, ensuring safety, and the high-pressure accumulator with a small capacity is sufficient as a source of high-pressure oil. Become.

An embodiment of the present invention will be described below with reference to the drawings. The drawing shows a schematic configuration of a vehicle body inclination control device for high-speed vehicles. 1 is a bogie for an ultra-high-speed vehicle, and has wheels 3A and 3B that run on rails 2A and 2B. The vehicle body is supported via left and right air springs 5A and 5B as spring mechanisms. The vehicle body 4 includes an air source 6 for left and right air springs 5A, 5B, a pair of left and right spring height control valves 7A,
7B is provided, and the left and right spring height control valves 7
A and 7B are linked to left and right height detection rods 8A and 8B connected to the trolley 1, respectively, and communicated with the air source 6 through a first hydraulic switching valve 9, which will be described later, to control the height of the left and right air springs 5A and 5B. It has come to be possible to control the temperature individually and at a constant level. Further, a spring average height control valve 7C is provided in the center of the vehicle body 4, and this central spring average height control valve 7C is linked to the average height detection rod 8C connected to the bogie 1. By switching the hydraulic pressure switching valve 9, it communicates with the air source 6 instead of the left and right spring height control valves 7A and 7B, so that the average height of both the left and right air springs 5A and 5B can be controlled to be constant. ing. In addition, the left and right air springs 5
A and 5B are brought into internal communication with each other by switching the first hydraulic switching valve 9.

Further, between the bogie 1 and the vehicle body 4, there are a pair of left and right hydraulic cylinders 10A, which serve as a hydraulic expansion and contraction mechanism, arranged in parallel inside the left and right air springs 5A and 5B.
10B are installed by slidingly fitting the pistons 11A and 11B, one of which is the hydraulic cylinder 10A.
The upper oil chamber of the hydraulic cylinder 10B and the lower oil chamber of the other hydraulic cylinder 10B are communicated with each other through a piping 12A, and the lower hydraulic pressure of one hydraulic cylinder 10A and the upper hydraulic pressure of the other hydraulic cylinder 10B are communicated with each other through a distribution chamber 12B. 12A and 12B have branch pipes 13A and 13B, and are connected to an electromagnetic switching valve 14 and a second hydraulic switching valve 1, which will be described later.
5 to the tilt controller 16 of the vehicle body 4. In normal times, the electromagnetic switching valve 14 is closed so that the left and right hydraulic cylinders 10A and 10B block the branch pipes 13A and 13B so that the left and right hydraulic cylinders 10A and 10B exert an anti-rolling function that restrains the vehicle body 4 from tilting in the rolling direction. and solenoid 14
The branch pipe 13 is opened by the switching operation caused by the action of a.
It serves to connect A and 13B to the second hydraulic switching valve 15. In addition, the second hydraulic switching valve 15 automatically returns to the open state during normal times, so that when the electromagnetic switching valve 14 is switched and opened, oil can freely pass through the connected branch pipes 13A and 13B. The branch pipe 13 is connected to the inclination controller 16 by opening the valve by a switching operation caused by the action of the hydraulic cylinder 15a.
The function is to connect A and 13B respectively.

Here, when an ultra-high-speed vehicle has to stop abnormally on a curved track with a large cant,
The second hydraulic switching valves 9 and 15 are switched and operated, and the left and right hydraulic cylinders 1 are operated via the tilt controller 16.
The vehicle body 4 is equipped with a high-pressure accumulator that generates and supplies high-pressure oil so as to control 0A and 10B. This is a high pressure gas cylinder such as carbon dioxide gas 17
This is connected to the atmospheric pressure side of an accumulator 19 filled with oil via a solenoid valve 18, and the accumulator 19 is connected to the first
and the hydraulic cylinder 9 of the second hydraulic switching valve 9, 15.
a, 15a as well as the tilt controller 16. Note that 20 in the figure is a switch for the solenoid 14a of the electromagnetic switching valve 14, which has its own power source 21. Further, 22 is a solenoid valve 1 of the high pressure accumulating section.
This is a switch that can be used for both the solenoid 18a of No. 8 and the solenoid 14a of the electromagnetic switching valve 14, and also has its own power source 23.

Now, to describe the operation of the vehicle body tilting device for an ultra-high-speed vehicle having the above configuration, a track exclusively for ultra-high speed is provided for an ultra-high-speed vehicle with an optimum cant according to the ultra-high-speed running pattern. As a result, the ultra-high-speed vehicle does not produce unbalanced acceleration during normal operation at a predetermined operating speed. Therefore, during normal operation, the vehicle body inclination control device does not need to perform any special functions, but only needs to maintain its conventional general function. In other words, during normal operation, the electromagnetic valve 18 of the high-pressure accumulator remains closed and pressurization of the accumulator 19 from the high-pressure gas cylinder 17 is stopped, so that no high-pressure oil is generated. maintains the state shown in the figure, and the pressurized air from the air source 6 is now supplied to the left and right spring height control valves 7A, 7.
B, these act on the left and right height detection rods 8.
By interlocking with A and 8B, the left and right air springs 5
The heights of A and 5B are controlled to be constant while being detected respectively. The left and right air springs 5A, 5B each independently function as a buffer between the bogie 1 and the vehicle body 4, and also maintain the rigidity of the vehicle body 4 in the rolling direction. In addition, the hydraulic cylinders 10A and 10B, which are the left and right hydraulic expansion and contraction operation mechanisms, have branch pipes 13A and 13B blocked by opening the electromagnetic switching valve 14, so that the left and right pistons 11A and 11B are connected to each other in a vertically parallel manner. When the left and right air springs 5A,
It supplements the support rigidity in the rolling direction of the vehicle body, which is insufficient with 5B alone.

Here, with the vehicle body tilt control device of the present invention, it is first possible to check and correct whether the vehicle body 4 is accurately held on a horizontal track without tilting or is on the right at the start of operation. That is, the left and right hydraulic cylinders 10A, 10
There is a possibility that B may hold the vehicle body 4 in an inclined position even though the track is horizontal due to oil leakage or the like. Therefore, just before starting the vehicle from the garage, the switch 20 is turned on at a certain interval to open the electromagnetic switching valve 14. With this, the branch pipes 13A and 13B are connected to the second
By connecting to the hydraulic switching valve 15 and communicating with each other, the anti-rolling function of the left and right hydraulic cylinders 10A and 10B is canceled. Now the left and right air springs 5A, 5B are connected to the spring height control valves 7A, 7B.
Under the control, the self-level holding function is exerted and the vehicle body 4 is corrected to a normal upright posture. After checking the horizontal correction of the car body 4, turn the switch 20.
By turning it off, the left and right hydraulic cylinders 10
A and 10B now function as proper anti-rolling devices.

Once the train begins operating, it will be able to travel at very high speeds on the track in a predetermined operating pattern. If a situation arises that requires a stop due to a signal or an accident on a curved track whose cant has been preset to a large cant according to the ultra-high speed running, the switch 22 is turned on automatically or manually. In conjunction with this, the electromagnetic switching valve 14 switches and opens in the same manner as described above, and at the same time, the electromagnetic valve 18 of the high pressure accumulator opens, and the high pressure gas such as carbon dioxide in the high pressure gas cylinder 17 that has been accumulated is released into the air. The accumulator 19 suddenly enters the pressure side of the mulrator 19, and as a result, the accumulator 19, which until now has only functioned as an oil reservoir, generates high-pressure oil. The pressure of the high-pressure oil switches the first hydraulic switching valve 9 and the second hydraulic switching valve 15a, and the high-pressure oil is supplied to the tilt controller 16. Now, by switching the first switching valve 9, the left and right air springs 5A and 5B are internally connected to each other and connected to the air source 6 via the spring average height control valve 7c, so that the average height of the two air springs is Although it is maintained constant, the left and right independent self-level maintenance function is lost and the vehicle body 4 is allowed to tilt. At the same time, the branch pipes 13A and 13B communicate with the tilt controller 16 by opening the electromagnetic switching valve 14 and the second hydraulic switching valve 15, respectively, so that the tilt controller 16 acts on the vehicle body 4. The high pressure oil coming from the accumulator 19 of the high pressure accumulator is sent to one of the branch pipes 13A, 13B, and from the other to an oil sump (not shown). Discharge the left and right cylinders 10.
A and 10B are forcibly varied to control the inclination of the vehicle body 4 so that passengers do not feel unbalanced speed. Incidentally, the tilt control of the vehicle body 4 can be performed smoothly since the left and right air springs 5A and 5B communicate with each other internally and lose the function of blocking the tilt control, as described above.

Furthermore, the vehicle body tilt control of a vehicle stopped on a sharply curved track as described above only requires the supply of high-pressure oil once, and a high-pressure accumulator with a small capacity using a high-pressure gas cylinder 17 and an accumulator 18 is sufficient. Can hold time. Moreover, if the vehicle starts traveling again without turning off the control release switches 20 and 22 in the tilt control state, the tilt controller 1
6 works at any time to supply high pressure oil from the high pressure accumulator to the left and right hydraulic cylinders 10A, 10B, the high pressure oil in the high pressure accumulator with a small capacity will be consumed and will soon run out, but due to the pressure drop of this high pressure oil, the Since the first and second hydraulic switching valves 9 and 15 automatically return and switch, the left and right hydraulic cylinders 10A,
10B is disconnected from the tilt controller, oil flows freely between the left and right sides, canceling the anti-rolling function, and at the same time, the left and right air springs 5A and 5B are independently activated. The trolley 1 is connected to the air source 6 via the height control valves 7A and 7B.
In contrast, the vehicle body 4 is held horizontally at a certain level and automatically returns to the normal driving state.
With this, even if the supply of high-pressure oil from the high-pressure accumulator is cut off, there will be no problems such as abnormal rolling motion of the vehicle body 4, and safety will be ensured.

Since this invention has been made as described above, during normal driving, the high pressure accumulator remains closed, and the left and right air springs act as a buffer between the bogie and the car body while controlling the height independently and at a constant level. At the same time, the rigidity of the vehicle body in the rolling direction can be maintained, and the left and right hydraulic expansion/contraction actuating mechanism acts as a mere anti-rolling device to supplement the vehicle body rolling support rigidity of the left and right air springs to enable predetermined high-speed driving. . In addition, when a vehicle abnormally stops on a sharply curved track with a large cant due to an accident or breakdown, the high-pressure accumulator generates high-pressure oil manually or automatically, and this high-pressure oil is controlled by the inclination controller to produce a balanced acceleration. Accordingly, the air is supplied to the left and right hydraulic expansion/contraction actuating mechanisms to forcefully control the tilt of the vehicle body so that passengers do not feel the unbalanced acceleration, and at this time, the left and right air springs automatically activate the anti-rolling function. This allows the tilt control of the vehicle body to be performed smoothly and correctly. In addition, for the vehicle body tilt control, it is sufficient to have a high pressure accumulator with a small capacity using a high pressure gas cylinder and an accumulator, and even when the vehicle resumes running from the tilt control state, the high pressure accumulator with a small capacity can be used to control the vehicle body inclination. When the supply of high-pressure oil disappears, the switching valve automatically returns to its original position, and the left and right hydraulic telescopic actuation mechanism cancels the anti-rolling function, and at the same time, the left and right air springs independently move the car body to a constant position relative to the bogie. Since the vehicle is held horizontally and automatically restored to normal driving conditions, there are no problems such as abnormal rolling motion of the vehicle body, ensuring safety. Therefore, for ultra-high-speed vehicles, there is no problem with a track with a small curve radius with a large cant that is not allowed in conventional general railways, and the degree of freedom in setting routes for ultra-high-speed vehicles is increased, which is extremely advantageous. Further, it is very advantageous in cases where it is difficult to install an on-board power source such as a hydraulic pump, such as in a super high-speed vehicle.

[Brief explanation of the drawing]

The drawing is a schematic diagram showing an embodiment of the present invention. 1... Trolley, 2A, 2B... Rail, 3A, 3
B...Wheel, 4...Vehicle body, 5A, 5B...Air spring, 6...Air source, 7A, 7B...Spring height control valve, 7C...Spring average height control valve, 8A, 8B,
8C...Height detection rod, 9...First hydraulic switching valve, 10A, 10B...Hydraulic telescopic operation mechanism (hydraulic cylinder), 11A, 11B...Piston, 12
A, 12B...Piping, 13A, 13B...Branch pipe,
14...Solenoid switching valve, 14a...Solenoid, 1
5... Second hydraulic switching valve, 15a... Hydraulic cylinder, 16... Incline controller, 17-19... High pressure accumulator, (17... High pressure gas cylinder, 18... Solenoid valve, 18a... Solenoid, 19 ...Accumulator), 20, 22...Switch, 21, 23
……power supply.

Claims (1)

[Scope of Claims] 1. Left and right air springs interposed between the vehicle body and the bogie, left and right hydraulic expansion/contraction operating mechanisms interposed between the vehicle body and the bogie in parallel with the left and right air springs, and For ultra-high-speed vehicles equipped with a tilt controller that allows the left and right hydraulic telescoping mechanism to expand and contract by supplying high-pressure oil in response to unbalanced acceleration, thereby forcibly controlling the tilt of the vehicle body so that passengers do not feel the unbalanced acceleration. In the vehicle body inclination control device, a high pressure accumulator is provided in the vehicle body and the valve is opened manually or automatically to supply high pressure oil to the inclination controller when the vehicle abnormally stops on a curved track with a large cant. an air source for the air springs, a pair of left and right spring height control valves that control the respective heights of the left and right air springs at a constant level, and a spring average height control valve that controls the average height of both the left and right air springs at a constant level. A control valve is provided, and in normal times, the left and right air springs are automatically returned to the state where they are individually connected to the air source via the left and right spring height control valves, and the high pressure oil pressure is controlled by opening the valve of the high pressure accumulator. a first hydraulic switching valve connected to an air source via the spring average height control valve in a state in which the left and right air springs are communicated with each other; An electromagnetic switching valve and a second hydraulic switching valve are installed in series in the middle of the piping between the two, and during normal times, the electromagnetic switching valve has an anti-rolling function that uses a left-right hydraulic telescoping mechanism to restrain the rolling direction of the vehicle body. The valve is closed in a state in which the high pressure accumulator is opened, and is opened in conjunction with the opening of the high pressure accumulator to allow oil to flow between the left and right hydraulic telescopic actuation mechanism and the second hydraulic switching valve. Normally, the second hydraulic switching valve automatically returns to the closed state, and when the electromagnetic switching valve is opened and connected, the anti-rolling mechanism is released by freeing oil flow within the range of the left and right hydraulic telescopic actuation mechanisms. For an ultra-high-speed vehicle, the valve is opened by the pressure of high-pressure oil from the high-pressure accumulator, thereby allowing oil to flow between the tilt control section and the hydraulic expansion/contraction mechanism. Vehicle tilt control device.