JP2001270350A - Movable rigid electric traction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such problems that the assurance of accuracy is difficult because a high accuracy is requested for a power transmission mechanism installed in a tunnel and a construction cost is high in a conventional movable rigid electric traction directly transmitting a power from a manual handle to a movable rigid electric traction to move the movable rigid electric traction. SOLUTION: A power generating unit 17 is provided to drive a generator by increasing the speed of rotation of a manual handle, and a power generated by the unit is fed to a motor 16a for movement of a feed mechanism through a power supply cable 18 so as to move a movable rigid electric traction 15 along a guide rail by the power of the motor. Thus, power transmission elements in the traction is not required, and a construction cost can be reduced because the construction is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rigid train line used as a mobile power source for a subway or the like, and more particularly to a movable rigid train line which can be partially moved so as to be evacuated from an installation point when necessary. About.

[0002]

2. Description of the Related Art In subways and the like, water stop iron doors, shutters, and the like are provided at important points in a road in preparation for an emergency disaster. When partially blocking the inside of the road with the water stop iron door or shutter, it is necessary to evacuate a part of the rigid train line that has been wired inside so that it can be shielded without hindrance, responding to that demand A mobile rigid train line is used as a device for this.

[0003] As a prior art of the movable rigid electric wire, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 61-139527. The movable rigid electric train line disclosed in the publication includes a fixed guide attached to the ceiling of a road, a movable rigid electric line provided movably along the fixed guide, a driving device provided below the road, and a universal joint. ,gear,
A power transmission mechanism in which a connecting shaft (link) is combined, and the driving force of the driving device is transmitted to the movable rigid train line via the power transmission mechanism to move the train line.

[0004] The driving device is not particularly limited,
In practical terms, a motor and an emergency manual handle are used together so that both can be selectively used.

[0005]

The above-mentioned conventional movable rigid electric train line has a drive device mounted on a lower part of a road so that a manual handle can be safely operated in an emergency (a power failure) when a motor cannot be used. The power generated there is transmitted to the movable rigid train line by a mechanical electric mechanism, but in the case of this structure, high precision construction of the power transmission mechanism is required, and it is difficult to obtain the accuracy, There was a problem that it took time and labor and the construction cost was high.

[0006] Further, there is a concern that the accuracy of the power transmission mechanism may be reduced due to the deformation of the sloping road and the reliability of the operation may be reduced, and maintenance and inspection for maintaining the accuracy are indispensable.

Further, one unit (moving length of about 3.5 m)
The number of rotations of the handle required to move the movable rigid train line was about 150, and the operation of the handle by the operator was also difficult.

The present invention solves these problems and improves workability, reduces costs, and reduces maintenance work.
The task is to improve reliability and reduce labor in an emergency.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a part of a rigid train line is formed by a movable rigid train line movably provided along a fixed guide, and the movable rigid train line is formed. In a movable rigid train line that can be driven by a driving device and retracted from a fixed position when necessary, the driving device includes a human-powered power generation unit, and the power generated by the power generation unit is supplied via a supply cable. Thus, the movable rigid train is moved by the power of the motor.

[0010] It is preferable to provide an electric lock device for holding the movable rigid train line at a fixed position and a retracted position, and the above-described power generation unit can be used also as a power supply for the lock device.

If a power source for driving the motor and a power source for driving the locking device are provided separately from the power generation unit, it is not necessary to manually generate power when the power source is normal.

It is preferable that the power generation unit includes a generator including a DC motor, a manual handle, and a gearbox that speeds up the rotation of the manual handle and transmits the rotation to the generator.

Further, a control circuit for short-circuiting a power supply circuit from the power generation unit to the moving motor and stopping the moving motor at a position where the movable rigid electric wire has finished retracting and a position where it has returned to the home position is included. Those are also preferred.

[0014]

According to the present invention, electric power is generated manually, and the electric power is transmitted to a moving motor via a power supply cable. Since the power transmission mechanism in the section up to the section is eliminated, the power transmission section does not require the high precision as in the past, and is less susceptible to the influence of the sloping road and the like.

Further, since the human power is once converted into electricity and transmitted to the moving motor and the lock device, the power generating unit can be separated from the movable rigid train line as long as the power transmission is not hindered. It is also possible to improve the response in an emergency by bringing the terminal closer to a station building or the like.

Although the electric locking device is also used in the conventional movable rigid electric wire, the conventional structure requires manual unlocking and re-locking at the time of a power failure. Thus, the lock device can be operated even at the time of a power outage with the electric power supplied from the power generation unit, and the work safety can be further improved by eliminating the manual work at a high place.

[0017] In addition, the one in which the rotation of the manual handle is accelerated and transmitted to the DC motor, and the DC motor is rotated to generate electric power, is such that the movable rigid train line of one unit is moved to the evacuation point by turning the handle about 15 times. It was confirmed by a test using a prototype device that the device can be moved and the labor in an emergency can be reduced to about 1/10 as compared with the conventional device in which the rotation of the handle is directly reduced and transmitted.

In addition, the one including the above-described control circuit can prevent the movable rigid train line from excessively moving without using a relay or a brake motor which is expensive and consumes large power. The effects of labor reduction in an emergency by the above-mentioned prototype device are that the handlebar rotation, which had to be decelerated in the past, can be used by increasing the speed, and the above-mentioned control circuit is included so that there is no brake with low power consumption This is caused by using the geared motor described above as a power source for movement.

[0019]

1 and 2 show an outline of a movable rigid electric wire according to the present invention.

As shown in FIG. 1, a rail 2 serving as a running track of a vehicle is laid in a steep road 1. A rigid electric wire 5 is suspended from the ceiling of the road 1 via a support 3 and an insulator 4. Power is supplied to the vehicle by sliding a pantograph in sliding contact with the rigid train line 5.

As shown in FIG. 2, the rigid electric wire 5 fixed to the ceiling of the cut road 1 is broken at a cut road shielding portion such as a water stop iron door or the like. A movable rigid train line 10 is provided in parallel with the rigid train line 5.

As shown in FIGS. 3 and 4, the movable rigid electric wire 10 has a guide rail 11 fixedly installed on the ceiling of a road and a plurality of overhead pulleys (trolleys) guided by the guide rail. A movable rigid train line 15 suspended on the elevated pulley 12 via the support portion 13 and the insulator 14;
The movable rigid train line 15 using the moving motor 16a as a power source
, A power generating unit 17 shown in FIG. 1 provided below the road 1, and a power supply cable 18 shown in FIG. 1 for transmitting electric power from the power generating unit to the moving motor 16a.
It is composed of

As shown in FIG. 4, the elevated pulley 12 includes, in addition to a roller 12a that rolls on the guide rail 11, a roller 12b that contacts the lower surface of the guide rail 11 and prevents the pulley from floating. The plurality of elevated pulleys 12 arranged at a constant pitch are connected by frames 19 fixed to side plates of the respective pulleys, and the movable rigid train line 15 suspended by being fed by the feed mechanism 16 is fixed at a fixed position together with the pulleys. It is moved from the original installation point (FIG. 2) to the evacuation point, and further returned from the evacuation point to a fixed position. The movable rigid train line 15 is connected to a power supply cable (not shown) having a sufficient length to follow the movement.

The feed mechanism 16 comprises a moving motor 16a provided near the ceiling of the road 1, a pinion gear 16b mounted on the output shaft of the motor, and a rack gear 16c fixed to the frame 19 and engaged with the pinion gear 16b. . Reference numeral 20 in FIG. 4 denotes a motor base which can be finely adjusted in height position mounted on the fixed bracket 21, and the motor for movement 16a is mounted on the motor base 20.

In the feed mechanism 16, a ball screw having a required length is attached to the frame 19, a bush is screwed to the ball screw, the bush is fixed at a fixed position, and the ball screw is rotated by a motor directly connected to the bush. And the like.

As shown in FIGS. 5 and 6, the power generation unit 17 includes a manual handle 17a on
7b, a generator 17c, and a control box 17d. The speed of the rotation of the manual handle 17a is increased by the speed increaser 17b, and the increased speed is further increased by the gears 17e and 17f, transmitted to the rotor of the generator 17c, and electricity is generated by the generator 17c. Preferably, the power generation unit 17 can be stopped by a lockable locking device (not shown) to prevent tampering.

In the illustrated power generation unit 17, the speed increase ratio by the speed increaser is set to 75/1, the number of teeth of the gears 17e, 17f is set to 50/20, and the number of rotations of the generator is 8 at the handle rotation speed 8 rpm. 1500 rpm, handle speed 10 rpm
Is designed to be 1875 rpm. The generator 17c uses a DC motor rated at 120W and 48V, and supplies the electric power generated by the generator 17c to the moving motor 16a via the power supply cable 18 in FIG.

A normal power supply (not shown) separate from the power generation unit is provided so that the power is always supplied from the power supply to the motor 16a. use.

The moving motor 16a has a capacity of 80 W / 24 V /
A 3.8 A direct current geared motor was used. This motor 1
Assuming that the rotation speed of 6a is 25 rpm and the pitch circle diameter of the pinion gear 16b is 85 mm, the moving speed of the movable rigid electric wire 15 is 6.68 m / min. This is the speed when power is supplied from the commercial power supply, and when power is supplied from the power generation unit 17, the rotation speed of the motor 16a is reduced. As a result, the number of handle rotations required to move a movable rigid train line with a travel length of about 3.5 m was about 15 times, but even with this, the labor required for handle operation is reduced to about 1/10. Is done.

FIG. 7 shows a control circuit incorporated in a power supply system from the generator 17c to the motor 16a.

Dogs 23 and 24 are attached to both ends of the rack gear 16c shown in FIG. Also, the guide rail 11
At both ends of the limit switch 25 corresponding to each dog,
26, when the movable rigid train line 15 arrives at the evacuation end point, the dog 23 activates the limit switch 25,
When returning to the return end point, the dog 24 operates the limit switch 26.

The control circuit shown in FIG. 7 includes a changeover switch 27 provided at the installation portion of the power generation unit 17 and a limit switch 2
Motors 5 and 26 are used to stop motor 16 at the end point of movement. That is, in the state shown in the drawing, electricity normally flows from the power generation unit 17 to the motor 16, and the motor 16 rotates to move the movable rigid train line toward the evacuation point. Is connected (the b-contact is disconnected), the power supply circuit is short-circuited, and the motor 16 stops.

When the power is supplied by switching the switch 27 to the return side, the motor 16 rotates in the reverse direction, and the movable rigid train line moves in the return direction from the retreat point. Also, in this case, when the return end point is reached, the limit switch 26 is activated, the power supply circuit is short-circuited via the a contact of the switch, and the motor 16
Stops. Therefore, it is possible to prevent excessive movement of the movable rigid train line without using a brake motor that is expensive and consumes large power.

Reference numeral 28 in FIG. 8 denotes a lock device for holding the movable rigid train line 15 at a fixed position and a retracted position. The lock device 28 locks and releases the lock by pushing and pulling a lock 28a with an electric cylinder 28b attached to the ceiling of the road 1.

The electric cylinder 28b is provided with a limit switch for stop control which operates using the displacement of the output rod. When the output rod of this cylinder is pushed out, the locking member 28a is locked to the frame of the support portion 13, and the movable rigid train line 15 is locked (stopped). When the output rod is pulled back, the lock is released.

The electric cylinder 28b can be supplied with electric power from both the common power supply and the power generation unit 17. Therefore, even if the normal power supply goes down, the electric cylinder 28b is operated by the electric power from the power generation unit 17. Thus, locking and unlocking can be performed without requiring any manpower.

[0037]

As described above, according to the present invention, human power is once converted into electricity, transmitted to a moving motor via a power supply cable, and the movable rigid train line is moved by the power of the motor. High accuracy is not required for the transmission mechanism, construction is facilitated, and construction costs can be reduced.

Further, since the power transmission path is shortened and is less susceptible to the distortion of the sloping road, the number of places for maintenance and inspection is reduced, operation failures due to reduced accuracy are less likely to occur, and reliability is improved. .

Furthermore, since the electricity transmission path can be made longer than the direct power transmission path, the installation point of the power generation unit can be made closer to a station building or the like to improve emergency response.

In addition, when the regular power supply cannot be used,
Since the electric lock device can be operated by supplying power from the power generation unit, it is not necessary to manually lock and unlock the lock device, thereby improving the safety of emergency work.

Further, the device that generates electric power by increasing the speed of rotation of the manual handle or the device that stops the moving motor by the control circuit has the effect that the labor for turning the handle can be greatly reduced as compared with the conventional case. is there.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an outline of an embodiment.

FIG. 2 is a bottom view showing a simplified main part.

FIG. 3 is a side view showing details of the embodiment.

FIG. 4 is an enlarged front view of a main part.

FIG. 5 is a plan view of a power generation unit.

FIG. 6 is a front view of the same unit.

FIG. 7 shows a control circuit.

FIG. 8 is a diagram showing a locked state by the lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Road 2 Rail 5 Rigid train line 10 Mobile rigid train line 11 Guide rail 12 Elevated pulley 13 Support part 14 Insulator 15 Movable rigid train line 16 Feeding mechanism 16a Moving motor 17 Power generation unit 17a Manual handle 17b Gearbox 17c Power generation Machines 17e, 17f Gears 18 Power supply cable 25, 26 Limit switch 27 Changeover switch 28 Lock device 28a Electric cylinder

Claims (5)

[Claims] 1. A part of a rigid train line is formed by a movable rigid train line movably provided along a fixed guide, and the movable rigid train line is driven by a driving device so that it can be retracted from a fixed position when necessary. In the above-mentioned mobile rigid train line, the drive unit includes a manually driven power generating unit, and the power generated by the power generating unit is supplied to a moving motor via a power supply cable, and the movable rigid train is driven by the power of the motor. A mobile rigid train line, characterized by moving the. 2. A movable rigid body according to claim 1, further comprising an electric lock device for holding the movable rigid electric train line at a fixed position and a retracted position, wherein power is also supplied from the power generation unit to the lock device. Train line car. 3. The mobile rigid train line according to claim 2, further comprising a power source for driving the motor and a power source for driving the locking device, which are separate from the power generation unit. 4. The power generating unit according to claim 1, wherein the power generating unit includes a generator including a DC motor, a manual handle, and a gearbox that speeds up rotation of the manual handle and transmits the rotation to the generator. The mobile rigid train line according to any of the above. 5. A control circuit for short-circuiting a power supply circuit from the power generation unit to the moving motor to stop the moving motor at the position where the movable rigid train line has finished retreating and has returned to the home position. The movable rigid tram line according to any one of claims 1 to 4.