JPH0958469A - Braking device for on-rail carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension device exerting no impact by electrically controlling brake operating current in order to make the braking force of an electromagnetic brake with no exciting current provided for a motive power unit, gradually effective, and executing the electrical control of a negative actuation electromagnetic brake provided for a transporting vehicle by starting it after braking of the motive power unit has been over. SOLUTION: When the starting lever of a motive power unit is erected, a limit switch 3 is inputted, release current flows from a current controller 1, an electromagnetic brake with no exciting current provided for the transmission shaft of a reduction gear is released, and the motive power unit is turned out to be in a starting condition. When the starting lever is returned to a suspension position or a neutral position, the limit switch 3 is turned off. And the current controller 1 permits current to be changed in such a way that the braking force of the electromagnetic brake is gradually turned out from a small one to a great one for a limited time. Furthermore, a negative actuation electromagnetic brake is also provided for a transporting vehicle which is connected so as to be moved, and its electrical control is executed by letting the brake starting time of the transporting vehicle be delayed much more than the brake starting time of the motive power unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The braking device for a railroad vehicle according to the present invention is proposed for a power vehicle and a device for gently applying an unexcited electromagnetic brake in a transportation vehicle by connecting to the power vehicle. This is because in a transporter that rides on a rail installed on a sloping ground and transmits the power of the prime mover to the drive wheels for traveling, the braking force of the electromagnetic brake gradually increases from small to large within a certain period of time. It is a braking device that is electrically controlled by.

[0002]

2. Description of the Related Art Conventionally, electromagnetic brakes have been used in transport vehicles. However, since it takes a very short time from the start of operation to the end of braking, the impact of stopping is particularly great when descending on a slope, and passengers feel uneasy. However, there were problems such as giving discomfort and causing a load collapse. In addition, since it is a braking system for railway vehicles that travel on sloping ground, it is customary to provide multiple brakes with large braking capacity. There was a problem that the shock of the became large.

[0003]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention electrically controls a brake operating current so that the braking force of a non-excited electromagnetic brake provided in a motor vehicle is gradually applied. Further, it is an object of the present invention to provide an impact-free stop device by electrically controlling a negatively-operated electromagnetic brake provided on a transport vehicle so as to start after the braking of the motor vehicle is finished.

[0004]

SUMMARY OF THE INVENTION A braking apparatus for a railroad vehicle according to the present invention is a vehicle that is mounted on a rail installed on a sloping ground and transmits the power of a prime mover to driving wheels to drive the vehicle. And as a braking device for the carriage, a non-excitation actuated electromagnetic brake is provided on the transmission shaft of the reduction gear that transmits power from the prime mover, and a switch for detecting a stop or neutral position is provided on the start / stop lever, and the start lever is used. When returning to the stop position or neutral position, the braking force of the electromagnetic brake is electrically controlled so that it gradually increases from small to large within a certain period of time, and the braking start time of the transport vehicle is delayed further than the braking start time of the power vehicle. This is a braking device for a rail carrier, which is characterized in that This will be described respectively for the power vehicle and the carrier truck.

For a motor vehicle traveling on a single rail,
A non-excitation actuated electromagnetic brake is provided on the transmission shaft of the speed reducer that transmits power from the prime mover of the motor vehicle, and the start / stop lever is returned to the stop position or the neutral position by the switch for detecting the stop or neutral position. A braking device that is electrically controlled so that the braking force of the electromagnetic brake gradually increases from small to large within a certain period of time is provided.

With respect to the braking device for the carriage that is connected to the power vehicle, a non-excitation actuated electromagnetic brake provided on the transmission shaft of the speed reducer for transmitting power from the prime mover of the power vehicle is provided on the start / stop lever. Provide a braking device that is electrically controlled so that the braking force of the electromagnetic brake gradually increases from small to large within a certain period of time when the start lever is returned to the stop position or the neutral position by the switch that detects the stop or neutral position. A negative-acting electromagnetic brake is also provided on the transportation vehicle that is connected to the power vehicle and is electrically controlled so that the braking start time of the transportation vehicle is delayed from the braking start time of the power vehicle.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The control device for a railroad vehicle according to the present invention is a power vehicle, in which a non-excitation actuated electromagnetic brake is provided on a transmission shaft of a power transmission and reduction device from a prime mover, and a starting lever is stopped. When it is returned to the position or the neutral position, the switch for detecting it is electrically controlled so that the braking force of the electromagnetic brake gradually increases from small to large within a certain period of time. The braking system of the transporting vehicle that is connected to the power vehicle is provided with a negative-acting electromagnetic brake on this transport vehicle and electrically controlled so that the braking start time of the transport vehicle is delayed from the braking start time of the power vehicle. It uses the current controller.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The accompanying drawings illustrate an embodiment of a braking apparatus for a railroad vehicle according to the present invention. FIG.
2 is a basic circuit diagram for electrically controlling the electromagnetic brake, FIG.
Is a characteristic diagram of the braking force of the braking device of the railway carrier, and FIG.
FIG. 4 is a characteristic diagram of a current value of a braking device for a railway vehicle, FIG. 4 is a circuit diagram of an embodiment, and FIG. 5 is a circuit diagram of a current controller of the embodiment.

In the embodiment of the braking system for a transport vehicle according to the present invention, in the transporting machine, the non-excitation actuated electromagnetic brake is provided on the transmission shaft of the reduction gear transmitting power from the prime mover. This electromagnetic brake is the front brake FB. The release and braking by the current flowing through the electromagnetic brake are released if the command input of the switch LS1 is ON and the current is positive, and the switch LS1 is OF.
If it is F, braking is performed. Normally (when the present invention is not used), LS1 is released in the ON state. The current value flowing in this electromagnetic brake is
When LS1 was switched to the OFF state, it rapidly became zero, so the electromagnetic brake had to be activated suddenly. By connecting this to a variable resistor (volume) to the current controller, The degree of braking is adjusted according to the situation at the site, such as inclination angle. However, the embodiment of the present invention is controlled by the current controller so as to gently change the braking force of the electromagnetic brake from small to large.

In this embodiment, the start / stop lever is provided with a switch LS1 for detecting a stop or neutral position, and when the start lever is returned to the stop position or the neutral position, the switch LS1 is cut off and the current controller 1 keeps constant. Electrical control is performed so that the braking force of the electromagnetic brake FB gradually increases from small to large over time.

When the start lever of the motor vehicle is raised, the limit switch LS1 is input, and the contact R1 connected when the engine is running is connected via the toggle switch TS, so that a current flows through the coil that operates the relay R2. Then, a release current flows from the current controller 1, the non-excitation actuated electromagnetic brake provided on the transmission shaft of the reduction gear device is released, and the vehicle is started and power is transmitted from the prime mover. When the start lever is returned to the stop position or the neutral position, the limit switch LS1 for detecting the stop or neutral position provided on the start stop lever is cut off, so that the braking force of the electromagnetic brake gradually changes from small to large within a certain period of time. The current controller 1 changes the current value so that the braking can be performed gently.

A negative-acting electromagnetic brake is also provided on a carrier truck that moves in connection with a power vehicle. The relay contact R2 a connected to the coil of the control timer TM1 of the rear brake RB is disconnected when electricity flows to the relay R2 to release the front brake, and is connected when the front brake works and the relay of R2 is not working. ing. Timer T
Since M1B is connected when the timer is not working, the electromagnetic brake RB of the carrier is released.
When the current flowing through relay R2 is cut off, relay contact R2
B is connected, and the fact that the electromagnetic brake of the motor vehicle is working is displayed on the display lamp of RL4. At this time, since the contact of R2 a is connected, current flows through the coil TM1 of the control timer, but the timer TM1b does not work until the set time. At this time, the timer TM1
RL4 says that B is connected to the rear brake and the rear brake is released, but the front brake of the power vehicle is in effect, and therefore the brake of the power vehicle is in effect.
Indicator lamp lights up. The relay contact R2a is connected, and after the set time of the timer TM1, the timer contact TM1B of the rear brake RB is disconnected and the rear brake RB is activated. Since the timer TM1 can be set to operate several seconds after the front brake is started, the timer TM1 is electrically controlled so that the braking start time of the transport vehicle is delayed from the braking start time of the motor vehicle. It will be.

As described in detail in the section of the above-mentioned prior art, the electromagnetic brakes conventionally used in transport vehicles are:
Since the spring forcibly operates by turning off the current, it takes an extremely short time from the start of operation to the end of braking. For this reason, the impact of stopping is inevitably great when the slope is descending. Since it is a braking system for railroad vehicles traveling on sloping ground, it is customary to provide multiple brakes with a large braking capacity. There was a problem that the shock was large.

[0014]

The present invention can solve the above-mentioned problems of the electromagnetic brake. That is, in order to gradually exert the braking force of the non-excitation actuated electromagnetic brake provided on the power vehicle, the brake release current is electrically controlled. It is possible to provide a shock-free stop device that is electrically controlled to start after the end.

The reason why the non-excitation type electromagnetic brake is not used in place of the non-excitation type electromagnetic brake of the power vehicle is that it is stopped when any trouble occurs because it is a transport vehicle on a sloping ground. As an example of the trouble, a disconnection of an electric circuit and a disconnection of a fuse are considered, and in that case, it is for ensuring the safety of the carrier.

[Brief description of drawings]

FIG. 1 is a basic circuit diagram for electrically controlling an electromagnetic brake.

[Fig. 2] Characteristic diagram of the braking force of the braking device of the railway carrier

[Figure 3] Characteristic diagram of the current value of the braking device of the railway carrier

FIG. 4 is a circuit diagram of an embodiment.

FIG. 5 is a circuit diagram of a current controller according to an embodiment.

[Explanation of symbols]

 1. . . Current controller 2. . . Terminal block 3. . . Instruction input switch 4. . . Load 5. . . Terminal of current controller 6. . . condenser

Claims (2)

[Claims] 1. A transporter mounted on a rail installed on a sloping ground and traveling by transmitting the power of a prime mover to drive wheels,
A non-excitation actuated electromagnetic brake is provided on the transmission shaft of the speed reducer that transmits power from the prime mover, and a switch for detecting a stop or neutral position is provided on the start stop lever, and when the start lever is returned to the stop position or the neutral position, A braking device for a rail transport vehicle, which is characterized in that the braking force of an electromagnetic brake is electrically controlled so as to gradually increase from small to large within a certain period of time. 2. A braking device for a power vehicle that travels on a single rail and a transport vehicle that is connected to the power vehicle and moves, wherein the power vehicle is provided with the braking device according to claim 1. Is a braking device for a rail transport vehicle, which is equipped with a negative-acting electromagnetic brake and is electrically controlled so that the braking start time of the carrier truck is delayed from the braking start time of the power vehicle.