JPH0725301B2 - 2t storage battery locomotive - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery locomotive used for transporting scrap in a narrow tunnel, and more particularly to a storage battery locomotive equipped with a safety device.

[Prior art]

Generally, a large amount of misalignment occurs in quarrying work in mines, subway construction, sewer construction, and underground power cable laying work. A dolly is used to transport this scrap. This truck is pulled by a towing vehicle and the sludge is transported outside the tunnel. This tow vehicle
Diesel engines have been the main source of power, but in recent years, electric vehicles, that is, storage battery locomotives (from storage battery locomotives, from the perspective of environmental and pollution problems such as the effects of exhaust gas on the health of local residents and workers, and noise mitigation) In general, battery loco,
(Called BL) has been used. Also,
In tunnels for laying power cables or power cables, it is rare to dig large-diameter tunnels these days.
mm-sized tunnels are becoming commonplace. Therefore, as for the Zuritro, the one with a loading capacity of 1.8 m ³ is often used. The storage battery locomotive for towing the Zuritro is a 2t construction locomotive. This conventional storage battery locomotive (BL) 100 for 2t construction currently has a vehicle body length of 2620mm and a vehicle body width of 934mm (this is measured from the protectors provided on both sides of the chassis to the protectors). Is used and its size is standardized. This storage battery locomotive (BL) 100
Has a structure as shown in FIGS. That is, the bearings 102, 10 are provided on the lower outer wall surface of the chassis 101.
3, 104 (not shown) and 105 (not shown) are provided so as to protrude from the outer wall surface. Wheels 107 and 108 fixed by an axle 106 are axially supported by the bearing 102 and the bearing 104. Wheels 110 (not shown) and 111, which are connected and fixed by an axle 109, are axially supported by the bearing 103 and the bearing 105. Further, protectors 112, 113, 114, 115 (not shown) are provided on the outer side wall surfaces of the chassis 101 to protect the bearings 102, 103, 104, 105 on the front side in the traveling direction. The wheels 107, 108, 110, 111 are configured to be driven by motors 116, 117. By driving the motors 116 and 117, the storage battery locomotive 100 can run forward and backward. A storage battery box is installed above the motors 116 and 117.
118 are installed. The total length of this storage battery box 118 is 1360 m
m, width is 920 mm. This storage battery box 118 forms a large power storage tank and has a motor 11 having a traction force of 630 kg.
It supplies electricity to 6 and 117. A storage battery that supplies electric power to the motors 116 and 117 is housed in the storage battery box 118. At one end of the storage battery box 118, as shown in FIG.
An illumination lamp 119 is attached. In addition, a driver's cab 120 that is operated by a human being is provided in the front of the chassis 101, and a chair 121 is provided. This chair 121 is for a person to sit down and operate the storage battery locomotive 100. A controller 122 that controls the storage battery locomotive 100 is provided near the chair 121. A manual brake handle 123 is provided on the storage battery box 118 side of the chair 121. The manual brake handle 123 is manually operated by a person to stop the storage battery locomotive 100 at a desired position. That is, the conventional storage battery locomotive 100 is stopped by a manual brake in which a person manually turns the manual brake handle 123 to operate the brake. Further, connecting portions 124 and 125 for connecting to the Zuritro are provided in front of and behind the traveling direction of the chassis 101. Further, rotating lights 126 and 127 are provided on the upper chassis 101 of the connecting portions 124 and 125. The rotating lights 126 and 127 are for rotating a yellow light bulb during work to draw attention. An illumination lamp 128 is attached to the side of the rotating lamp 126.
In addition, an obstruction device 129 for removing large rocks and the like is provided below the chassis 101. Incidentally, reference numeral 130 in the figure is a handrail.

[Problems to be Solved by the Invention]

However, although a tunnel for laying cables for telephone / telephony is sometimes installed in the city, it is sufficient for the maintenance management to be large enough for people to pass through, so it is not possible to excavate a large tunnel. Absent. Therefore, in the conventional 2t class storage battery locomotive, it is not possible to make it larger than the current size, total length 2620mm, and keep the current size (without changing the size) and take safety measures. There must be. In this way, since no safety measures were taken in the past, the conventional 2t storage battery locomotive uses a manual brake to stop the storage battery locomotive, so a sudden stop operation cannot be made in time in an emergency. However, there is a problem that the emergency stop operation cannot be performed. In addition, the conventional 2t storage battery locomotive has a problem that it is difficult to always stop at a fixed position, that is, a fixed position stop because the manual brake is used for stopping the storage battery locomotive. Therefore, a power brake may be used, and in the case of a power brake, it is advantageous to use an air cylinder to form an air brake in order to reduce power consumption. However, when a power brake using this air cylinder is used, in order to stop in a short time, it is necessary to push the air cylinder to increase the frictional force between the wheel and the brake. Must be high pressure,
Moreover, if the air is directly supplied from the compressor to the air cylinder, the pressure of the air is insufficient and the air is pulsated by the driving of the compressor every time the compressor is driven, so that the air brake cannot be smoothly operated. Therefore, it is necessary to install a receiver tank to remove this pulsation. However, the conventional 2t storage battery locomotive has a problem that the power brake cannot be used because there is no space to install devices such as a compressor motor, a compressor and a receiver tank used for these power brakes. Also, in the conventional 2t class storage battery locomotive, the storage battery box is large compared to the size of the chassis, and in addition to mounting the storage battery, it is necessary to mount a device for safety measures on the chassis. There is a problem that a space cannot be secured and a device for actually taking safety measures cannot be mounted. For this reason, in the conventional 2t storage battery locomotive, the locomotive will malfunction due to malfunction even if a person does not operate the vehicle while the locomotive is stopped while the power is on. However, there is a problem in that there is a risk that it may start moving. Furthermore, in the conventional 2t storage battery locomotive, if the speed is gradually increased by driving operation, the speed will increase to the limit of the motor driving force and the safe speed will be exceeded without increasing the speed command value to the maximum. However, in this case, the speed suddenly rises to an unexpected speed, and it takes time to deal with the problem, resulting in a lack of work safety. An object of the present invention is to mount a power brake without changing the size of a standardized 2t storage battery locomotive to reliably stop the 2t storage battery locomotive in an emergency, and to operate it erroneously when a person is not on board. The locomotive does not start moving, and even if the driver increases the speed, it will prevent the speed from further increasing when it reaches a safe speed, and will try to secure safety while driving the locomotive. is there.

[Means for solving problems]

In order to achieve the above object, in a 2t storage battery locomotive according to the present invention, a storage battery box that stores a storage battery that supplies power to a motor having a traction force of 630 kg of Zuritro is mounted on a chassis with a total length of about 2.6 m. On the rail laid inside the tunnel with a diameter of about 2.5 m by the wheel fixed to the axle that is rotatably supported by the bearing mounted on the outer wall of the chassis. In a 2t storage battery locomotive that runs by pulling the Zuritro, the storage battery box is reduced in size and downsized without changing the power capacity, and a device stand is installed adjacent to the storage battery box on the opposite side of the cab. In addition, a device box is placed on the device base, and an air cylinder for operating a brake is provided in the lower portion of the carriage to provide compressed air to the air cylinder by turning on an electric brake switch. A tank is installed in the device box in a vertically placed state so as to penetrate through the device stand, and a compressor for supplying air into the receiver tank to raise the pressure to a predetermined air pressure and a compressor motor for driving the compressor are provided in the device box. A deadman device is provided on the driver's cab so that the traveling switch is activated only when a person is seated on the chair, and a vehicle speed detector for detecting the speed of the 2t storage battery locomotive is provided at an appropriate location on the chassis. , When the vehicle speed detected by the vehicle speed detector exceeds a predetermined upper limit of a predetermined speed, the current supplied to the motor for driving the locomotive is stopped and falls below a predetermined lower limit of a predetermined speed. At this time, a speed control device is provided to control the 2t storage battery locomotive to run within a predetermined speed range by supplying current to the locomotive driving motor. That. Then, the electric brake switch is provided with an oscillator at a predetermined position on a predetermined rail side, the electric wave of a predetermined frequency emitted from the oscillator is caught, and the power brake is operated to automatically move the electric brake switch to a predetermined position. By making the fixed position automatic stop device that is stopped to operate in conjunction therewith, the fixed position automatic stop device can be automatically and surely stopped. Furthermore, if the speed control device is provided with an alarm device that gives an alarm when the speed of the 2t storage battery locomotive reaches a predetermined upper limit predetermined speed, the driver is notified that the upper limit predetermined speed is reached. It is the one.

[Action]

When a Zlitro is towed by a 2t storage battery locomotive on a rail laid in a tunnel with a diameter of about 2.5m, and a person is not seated in the chair of the cab, the travel switch does not operate, 2t storage battery locomotive does not run unattended due to malfunction. When the 2t storage battery locomotive is running and the electric brake switch is turned on to apply braking, the receiver tank opens, compressed air in the receiver tank is supplied to the air cylinder, and the air cylinder operates. The brakes are applied to the wheels by the operation of the air cylinder, and the 2t storage battery locomotive is reliably braked by the pressure of the air cylinder. Air is supplied to the air cylinder to send air to the receiver tank whose pressure has dropped to raise the pressure, so the compressor motor turns on and the compressor operates, and it operates until the inside of the receiver tank reaches the specified air amount and air pressure. . Also, while the 2t storage battery locomotive is running, the speed of the 2t storage battery locomotive is detected by the vehicle speed detector attached to the chassis, and the speed of the 2t storage battery locomotive is determined based on the detected value, which is a predetermined upper limit. When the speed is exceeded, the supply of electric current to the motor for driving the locomotive is stopped to prevent the speed from further increasing. Also, when the speed of the 2t storage battery locomotive based on the detection value of the vehicle speed detector falls below a predetermined lower limit, the 2t storage battery engine is supplied again to the motor for driving the locomotive. Increase the speed of the car. In this way, the speed of the 2t storage battery locomotive is controlled within the predetermined speed range. Furthermore, when the 2t storage battery locomotive runs and reaches a predetermined position, it captures radio waves of a predetermined frequency emitted from an oscillator installed at a predetermined position on the rail side, and the electric brake is automatically activated by the operation of the fixed position automatic stop device. Switch on and operate the power brake to automatically and reliably stop the 2t storage battery locomotive at a fixed position. Also, when the speed of the traveling 2t storage battery locomotive reaches a predetermined upper limit, a warning is issued.

【Example】

Examples of the present invention will be described below. 1 to 3 show an embodiment of the present invention. In the figure, bearings 3, 4, 5 and 6 are provided inside the lower side wall of the chassis 2 of the storage battery locomotive 1 so as not to project from the outer wall surface. Wheels 8 and 9 fixed by an axle 7 are axially supported by the bearing 3 and the bearing 4. Wheels 11 and 12, which are connected and fixed by an axle 10, are axially supported by the bearing 5 and the bearing 6. The wheel width distance between the wheel 8 and the wheel 9 is larger than the wheel width distance of a conventional storage battery locomotive (BL) by the amount that the bearing 3 and the bearing 4 are mounted inside the outer wall surface so as not to project from the outer wall surface. And it is narrowed. Similarly, the wheel width distance between the wheel 11 and the wheel 12 is determined by the bearing 5
The bearing 6 is narrower than the wheel width of the conventional storage battery locomotive (BL) by the amount that the bearing 6 is mounted inside the outer wall so as not to project from the outer wall. As described above, by providing the bearings 3, 4, 5, 6 so as not to project from the outer wall surface, the bearings 102, 103, 104, 105, and Axle supported by bear rigs 102, 103, 104, 105
5 and 6 provided for the purpose of protecting 106 and 109
The illustrated protectors 112, 113, 114, 115 can be removed. Therefore, the width of the entire chassis of the conventional storage battery locomotive (BL) for 2t construction can be narrowed by removing the protectors 112, 113, 114, 115 shown in FIGS. 5 and 6, that is, the conventional 2t The width of the chassis of a storage battery locomotive (BL) for construction can be reduced from 934 mm to 830 mm. The wheels 8, 9, 11, 12 are configured to be driven by motors 13, 14 (not shown). By driving the motors 13 and 14, the storage battery locomotive 1 can run forward and backward as indicated by arrow A. A storage battery box 15 is installed substantially in the center of the upper chassis 2 of the motors 13 and 14. This battery box 15 has a total length of 1120 mm and a width.
The length is 920 mm, which is much smaller than the total length of the conventional storage battery box 118 shown in FIG. This battery box 15
Forms a large storage battery tank.
A battery for supplying electric power for driving the motors 13 and 14 having a traction force of 630 kg is built therein. Only the storage battery is stored in the storage battery box 15. Further, a driver's cab 16 is provided on one side adjacent to the storage battery box 15 in the longitudinal direction of the chassis 2, and a device stand 17 is provided on the other side. A device box 80 is placed on the device stand 17. This equipment stand 17
The storage battery box 15 can be provided on the chassis 2 by forming the storage battery box 15 smaller than the conventional storage battery box 118. Also, as shown in FIG. 1, at the tip of the chassis on the device stand 17 side,
An illumination lamp (headlight) 18 is attached. This storage lamp (headlight) 18 is a storage battery locomotive 1 that has a headlight (headlight) 18
When traveling in the direction of, the inside of the gallery in the traveling direction of the storage battery locomotive 1 is illuminated. Further, connecting rods 19 and 20 for connecting with the Zuritro are provided in front of and behind the traveling direction of the chassis 2. In addition, at both ends in the longitudinal direction of the upper chassis 2 of the connecting rods 19 and 20, the rotary lamp 2
1, 22 are provided. These revolving lights 21 and 22 are for rotating a yellow light bulb during work to call attention. An illumination lamp (backlight) 23 is attached to the rotating light 21 side. When the storage battery locomotive 1 travels in the direction of the lighting (rearlight) 23, the illumination light (rearlight) 23 illuminates the inside of the gallery in the traveling direction of the storage battery locomotive 1. Further, at the lower part of the chassis 2, an obstacle stopper 24 for removing large rocks or the like is provided. Further, a fixed position automatic stop device 30 is provided below the device stand 17 of the chassis 2. The fixed position automatic stop device 30 detects the magnetic force of a magnet installed at a predetermined position on the rail side to automatically operate the brake. The fixed position automatic stop device 30 may be one that sets an oscillator at a predetermined position on the rail side, catches a radio wave of a predetermined frequency emitted from the oscillator, and operates a brake. A driver's cab 16 of the chassis 2 is where a person rides to operate the storage battery locomotive 1. The driver's cab 16 has a chair 25
Is provided. A handrail 26 is provided at the end of the rear chassis 2 of the chair 25. The handrail 26 is for preventing the driver from accidentally falling. A traveling direction indicator lamp 32 is provided at a substantially central portion of the handrail 26.
The traveling direction indicator lamp 32 is for indicating the traveling direction of the storage battery locomotive 1, and the traveling battery indicator locomotive 1 has a traveling direction indicator lamp 32.
It is designed to blink when proceeding at the beginning. The chair 25 is used when a person sits down and operates the storage battery locomotive 1, and a controller 27 that controls the speed of the storage battery locomotive 1 is provided near the chair 25. Has been. The speed change lever 28 and the forward / reverse change switch 29 provided on the upper part of the controller 27 are for speed control. This controller 27
A speed control device 40 is provided in the vicinity of. This speed control device 40 uses wheels 8, 9, 11, 12 of the storage battery locomotive 1.
It has a function of detecting the wheel speed of the vehicle and keeping it constant so that the speed does not increase any more when it reaches a predetermined speed. That is, when the speed control device 40 reaches a predetermined upper limit of a predetermined speed, the drive current to the motor for driving the wheels of the storage battery locomotive 1 is stopped (speed acceleration is stopped), and the motor is driven. When the speed of the storage battery locomotive 1 decreases due to the stop of the electric current to reach a predetermined lower limit of a predetermined speed, the supply of the drive current to the motor that drives the wheels of the storage battery locomotive 1 is started again. The speed control device 40 is provided with an alarm device (not shown). This alarm device is for a fixed time (for example, 5 seconds or 10 seconds) when the vehicle speed of the storage battery locomotive 1 reaches a predetermined speed.
It gives an alarm. A vehicle speed sensor (not shown) is used to detect the vehicle speed. The vehicle speed sensor includes one that is immediately attached to the transmission (the axle if there is no transmission) and one that is detected by bringing a cable from the transmission (or the axle) into the panel meter in the driver's seat. The former uses a rotating plate having, for example, 30 protrusions provided on a shaft, a pulse generator formed by a magnet at a position facing the protrusions, and an amplifier connected to the pulse generator to rotate the rotation. The rotation of the plate outputs 30 pulses per rotation. In the latter, a switch is provided at a position facing the magnetic protrusion by the rotation of the disk with the magnetic protrusion, and a pulse signal is output to the voltage applied via the resistor due to the intermittent operation of the switch. For example, eight pulses of this pulse signal are output for one rotation. The output pulse signal has a constant relationship (linear change) between the vehicle speed and the frequency. Since the frequency changes greatly with respect to the vehicle speed, the vehicle speed can be detected from the frequency. Becomes Further, an electric brake switch 61 of the power braking device 60 is attached to the speed control device 40. A deadman device 50 is provided below the chair 25. This deadman device 50 is a switch that turns on when a person sits in the chair 25, and the storage battery 15 is attached to this switch.
The power supplied from is connected. Ie chair
25 is constantly pressed upward by a spring (not shown), and when a person sits on this chair 25, the chair 25
Slides downwards. When this chair 25 slides down,
A switch provided on the chair 25 is configured to come into contact with a contact (not shown) provided on the chassis to perform switching. By this switching, the storage battery locomotive 1 can be driven for the first time. Therefore, the storage battery locomotive 1 cannot operate unless a person sits down on the chair 25. Also, on the storage battery 15 side of the chair 25, a manual brake handle
31 is provided. This manual brake handle 31
It is intended for a human to manually operate the storage battery locomotive 1 to stop it at a desired position.
It can be operated separately from. A device box 80 is mounted on the device stand 17 of the chassis 2. A power braking device 60 is provided in the device box 80. The power brake device 60 includes a compressor motor 62, a compressor 63, an air cylinder 64, a receiver tank 70, and an electric brake switch 61 mounted on a speed control device 40, which are housed in a device box 80.
It is composed of and. The receiver tank 70 is normally laid down horizontally, but in the present embodiment, the receiver tank 70 is housed in the device box 80, and the receiver tank 70 is vertically arranged so that the lower part thereof penetrates the device base 17 and projects into the trolley 2. It is provided in.
The receiver tank 70 has a smaller size by reducing the outer shape of the storage battery box 1 without changing the power capacity, and a device stand 17 for mounting the device box 80 on the opposite side of the cab 16 adjacent to the storage battery box 15. By forming the space, it was possible to install vertically. By vertically installing the receiver tank 70 in this manner, it is possible to provide the receiver tank 70 in a narrow and limited space. When such an electric brake switch 61 is turned on, the reservoir tank 70 is opened, compressed air is supplied to the air cylinder 64, and the air cylinder 64 is operated. This air cylinder
When 64 operates, the brake attached to the tip of the air cylinder 64 presses the wheels 8, 9, 11, 12 to operate the brake. Further, when the pressure in the receiver tank 70 falls below a predetermined pressure, the electric compressor motor 62 operates to operate the compressor 63 to supply air into the receiver tank 70, and the air pressure in the receiver tank 70 is always kept at a predetermined level. There is more than pressure. In this way the air cylinder
When 64 operates, the brake load is applied to the wheels 8, 9, 11, and 12, and the storage battery locomotive 1 is stopped.
Further, a rear light 33 is mounted in the device box 80 so that the traveling direction of the storage battery locomotive 1 can be known. Further, the lower corner of the chassis 2 is not angular unlike the conventional storage battery locomotive and is chamfered. Therefore, in the case of a tunnel such as a tunnel where the lower part is dug round, it is possible to prevent the lower corners of the chassis 2 from colliding with each other when the line is changed or when the line is changed to Zuritro. The traveling direction indicator light 32,
33 is configured to switch in conjunction with the forward / reverse changeover switch 29, and when the forward / reverse changeover switch 29 is switched forward, the traveling direction indicator lamp 33 is turned on and the forward / reverse changeover switch 29 is switched to reverse. Then, the traveling direction indicator lamp 32 is configured to light up. Since it is configured in this way, the storage battery locomotive 1
When the vehicle travels in the direction shown by arrow B in FIG. 1, the rotating lamp 22 and the lighting lamp 18 are turned on, and when traveling in the direction shown by the arrow C, the rotating lamp 21 and the lighting lamp 23 are turned on. In the storage battery locomotive 1, when a person sits down on the chair 25 of the cab 16 and turns on the switch, the motors 13 and 14 operate. Controller 27
When the speed change lever 28 and the forward / reverse change switch 29 are operated, the storage battery locomotive 1 starts running. When the storage battery locomotive 1 starts traveling, the vehicle speed sensor detects the vehicle speed (wheel speed), and when the vehicle reaches a certain speed (speed determined as a safe speed), the speed control device 40 operates so that the vehicle speed becomes constant. To control the motors 13 and 14. When it is necessary to stop during running, the power brake device 60 is activated by turning on the electric brake switch 61, and the storage battery locomotive 1 is stopped by power. Also, when the target position is reached, the fixed position automatic stop device 30 detects the stop position, and automatically activates the brake to stop the storage battery locomotive 1 at the fixed position.

【The invention's effect】

As described above, according to the present invention, the power brake can be placed and the 2t storage battery locomotive can be reliably stopped in an emergency without changing the size of the existing 2t storage battery locomotive. Further, according to the present invention, unlike the conventional 2t storage battery locomotive, the storage battery locomotive does not start to move due to a malfunction when the human is not riding the storage battery locomotive. It is possible to prevent the storage battery locomotive from malfunctioning and starting to move. Further, according to the present invention, even if the driver issues a speed increase command in order to increase the speed of the 2t storage battery locomotive, the speed of the 2t storage battery locomotive does not rise above a predetermined safe speed. be able to.

[Brief description of drawings]

FIG. 1 is a front view of a storage battery locomotive according to the present invention, FIG. 2 is a plan view of the storage battery locomotive shown in FIG. 1, FIG. 3 is a left side view of the storage battery locomotive shown in FIG. 1, and FIG. A front view of a conventional storage battery locomotive, FIG. 5 is a plan view of a storage battery locomotive shown in FIG. 4,
FIG. 6 is a left side view of the storage battery locomotive shown in FIG. 1 …… Storage battery locomotive 2 …… Chassis 15 …… Storage battery box 16 …… Driver stand 17 …… Equipment stand 25 …… Chair 30 …… Fixed position automatic stop device 40 …… Speed control device 50 …… Detman device 60… … Power braking device 70… Receiver tank 80… Device box

Claims (3)

[Claims] 1. A storage battery box accommodating a storage battery for supplying electric power to a motor having a traction force of 630 kg for driving a Zuritro is mounted on a chassis having a total length of about 2.6 m, and a driver's cab is provided adjacent to the storage battery box, In a 2t storage battery locomotive that runs by pulling Zuritro on a rail laid in a tunnel with a diameter of around 2.5m by wheels fixed to an axle rotatably supported by bearings mounted on the outer wall of the chassis, The storage battery box is reduced in size by reducing the outer shape without changing the power capacity, and a device stand is provided adjacent to the storage battery box on the opposite side of the driver's cab, and the device box is placed on the device stand. An air cylinder for activating a brake is provided in the device, and a receiver tank for supplying compressed air to the air cylinder by turning on an electric brake switch is placed vertically in the device box and the device is installed. When a person is seated in a chair on the driver's cab, a compressor for supplying air into the receiver tank to raise the pressure to a predetermined air pressure and a compressor motor for driving the compressor are provided in the device box. A deadman device that operates the traveling switch only is installed in the vehicle, and a vehicle speed detector that detects the speed of the 2t storage battery locomotive is installed at an appropriate location of the chassis, and the vehicle speed detected by the vehicle speed detector is predetermined. Stopping the current supplied to the motor for driving the locomotive when the speed exceeds a predetermined upper limit speed, and supplying the current to the motor for driving the locomotive when falling below a predetermined lower limit speed. A 2t storage battery locomotive is provided with a speed control device for controlling the 2t storage battery locomotive to travel within a predetermined speed range. 2. The electric brake switch is provided with an oscillator at a predetermined position on the rail side, and the power brake is actuated by capturing an electric wave of a predetermined frequency emitted from the oscillator to a predetermined position. The 2t storage battery locomotive according to claim 1, characterized in that a fixed position automatic stop device for automatically stopping is operated in conjunction with it. 3. The speed control device is provided with an alarm device for issuing an alarm when the speed of the 2t storage battery locomotive reaches a predetermined upper limit of a predetermined speed. Or the 2t storage battery locomotive described in paragraph 2.