JPH08113499A - Electrically driven self-traveling balancer - Google Patents

Abstract

PURPOSE: To guide hydrogen gas in the lateral direction of a load-carrying platform, and to discharge it outside a machine from both ends, so as to eliminate a possibility of spark explosion, by providing guide passages for hydrogen gas, extending in the width direction of a load-carrying platform, and provided with a guide plate on the lower surface of the load-carrying platform facing the loading housing position of a battery. CONSTITUTION: A traveling device 1 is driven by control supply power source from a battery 3 loaded in a box-like chassis 2 by a controller 5 and supplying it to a motor 4. The battery 3 is charged by opening an opening/closing cover 10 on the end surface of the chassis 2, and inserting a power plug into a charging plug socket in a housing box 11. In this case, a guide passage 9 for hydrogen gas, extending in the load-carrying platform width direction, and provided with guide plates 8, 8 in front and rear sides is provided on the load-carrying platform 6 lower surface facing the loading position of the battery 3, and both ends are released outside the machine. Therefore, hydrogen to be generated in large quantities in charging is prevented from diffusing in the longitudinal direction of the chassis 2 in which a spark source such as the controller 5 exists, and the accident caused by spark explosion of the hydrogen gas is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric self-propelled balancer driven by a motor using a battery as a power source.

[0002]

2. Description of the Related Art In a large-sized machine of this kind, which uses a battery as a driving power source, it is necessary to mount a large-capacity battery. Therefore, a large amount of hydrogen gas is generated during charging, which is very dangerous. For this reason, normally, the loading platform was opened upward to perform charging work. Therefore, particularly when the charging operation is performed outdoors, it has been a cause of troubles such as electric components due to the influence of dust and rainwater. In addition, this electric self-propelled balancer may be used at construction sites such as curb pile construction on roads, and measures for rainwater and ease of maintenance are important.
Insufficient consideration is given.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks and has taken the following technical means.

[0004]

A first means is to install a battery 3 in a box-shaped chassis 2 having traveling devices 1 and 1 on the left and right sides.
In order to store and mount the motor 4, the control device 5 and the like, and also to mount the cargo bed 6 on the chassis 2 and mount the balancer 7 on the cargo bed 6, the cargo bed 6 corresponding to the mounting and storing position of the battery 3 is installed.
Guide plates 8 and 8 are provided on the lower surface so as to extend in the width direction of the loading platform 6
And a guide passage 9 for hydrogen gas is provided, and both ends of the guide passage 9 are opened to the outside of the machine to form an electric self-propelled balancer. Second
This means accommodates and mounts the battery 3, the motor 4, the control device 5 and the like in a box-shaped chassis 2 provided with traveling devices 1 and 1 on the left and right, and installs a carrier 6 on the chassis 2 to mount the carrier 6. In an electric self-propelled balancer having a balancer 7 mounted thereon, a part of the front or rear surface of the box-shaped chassis 2 is provided with an opening / closing lid 10.
A self-powered self-contained storage box 11 is provided inside, a breaker 12 and a charging outlet 13 required for maintenance are installed in the storage box 11, and a remote control operation box 14 can be stored. The configuration of the running balancer.

[0005]

In the electric self-propelled balancer, the power supply from the battery 3 mounted in the box-shaped chassis 2 is controlled by the control device 5 to supply power to the motor 4, and the motor 4 is driven.
The rotation is transmitted to the traveling devices 1 and 1 via the transmission device to travel. Next, when the battery 3 is charged, the power plug is inserted into the charging outlet 13 installed in the storage box 11 by opening the opening / closing lid 10 on the front surface or the rear surface of the box-shaped chassis 2. At the time of this charging, especially in the case of the battery 3 having a large capacity, a large amount of hydrogen gas is generated and there is a danger of ignition and the like, which is very dangerous. However, in the present invention, it corresponds to the mounting position of the battery 3. Since a hydrogen gas guide passage 9 extending in the width direction of the cargo bed 6 and having front and rear guide plates 8, 8 is provided on the lower surface of the cargo bed 6 and both ends thereof are open to the outside of the machine, the specific gravity is light and floats upward. The generated hydrogen gas is prevented from diffusing in the front-rear direction of the chassis 2 where the ignition source such as the control device 5 exists by the front and rear guide plates 8, 8 and is guided in the left-right direction of the luggage carrier 6 along the guide passage 9. It is discharged to the outside from both ends.

Therefore, there is no need to perform the cumbersome opening operation of the loading platform 2 as in the prior art, and the charging operation can be performed by an easy operation without being affected by dust or rainwater while the loading platform 2 is closed. By discharging the hydrogen gas out of the machine through the guide passage 9 provided on the lower surface of 2, it is possible to prevent the ignition and explosion accident of the hydrogen gas. In the second aspect of the invention, a box-shaped chassis 2 is provided with an opening / closing lid 1 on a part of the front surface or the rear surface.
0 and none A storage box 11 is provided in the chassis 2 and a breaker 12 is provided in the storage box 11 to cut off the power supply current when an overcurrent occurs.
, And a charging outlet 13 are installed.
Remote control operation box 14 for running operation
Since it is configured so that it can be stored, it is possible to collect devices that require relatively maintenance in a single storage box 11 and to easily operate them in an easy-to-operate position and to easily ensure waterproofness. You can Further, by storing the operation box 14 for remote control in the storage box 11, it is possible to prevent the lead wires and the like from being stepped on by the traveling devices 1, 1.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated example, a chassis 2 is formed in a box shape, and an upper end of a standing wall is folded inward to cover an upper peripheral edge 15. A transmission case 16 is mounted on one side of a rear portion of the chassis 2 so that the left and right crawler type traveling devices 1, 1 can be driven by receiving power from a side motor 4. In front of the mission case 16, there is a charger 17 including a transformer,
A control device 5 for driving and controlling a motor 4 and a balancer 7 to be described later is mounted in front of it, and a top surface thereof is covered with a cover 18. Also, the chassis 2 in front of the control device 5
On the front part, two batteries 3 and 3 are mounted side by side in front and rear, and the upper part thereof is open.

The balancer 7 is an abutment 1 at the rear center of the chassis 2.
The base 20 is attached to the base 9 so as to be rotatable left and right, the upper and lower link rods 21 and 22 are pivotally supported on the base 20 so as to be vertically rotatable, and the upper and lower ends of the link rods 21 and 22 are lifted. The base of the arm 23 is pivotally supported. Reference numeral 24 denotes a drive arm, and the upper and lower link rods 21 and 22 are configured to be vertically rotatable around their bases by an electric cylinder (not shown). 25 is a balance spring. A suspending tool 27 is hung from the tip of the elevating arm 23 via an operation box 26, and an up / down operation lever 28 provided on the operation box 26 allows the upper and lower link rods 21 and 22 and the elevating arm 23 to rotate up and down. I am doing it.

On the front surface of the box-shaped chassis 2, an opening long in the lateral width direction is provided, and an opening / closing lid 10 is attached to the opening, and a storage box 11 is formed inside the chassis 2. A breaker 12 that shuts off the power supply when an overcurrent occurs on the lower surface of one side, and an outlet 13 for charging on the side surface of the other side.
Is installed. Further, a lead wire is extended from the center of the storage box 11 and a remote control operation box 14 is provided at the tip thereof, and the operation box 14 can be stored in the center of the storage box 11. Reference numeral 29 denotes an opening / closing stay of the opening / closing lid 10.

A receiving antenna 32 for radio control is provided at the rear of the chassis 2, and the left and right traveling devices 1, 1 can be drive-controlled by a radio control operation box (not shown). The loading platform 6 has a wide width on the chassis 2 by overhanging the chassis 2 in the front, rear, left, and right directions, and the front portion of the stay 3 is pivotally supported 33, 33 on the chassis 2.
4, 34 and 34 are attached to the ends thereof, and are pivoted forward around the stays 34, 34 so that the upper surface of the chassis 2 can be opened. Further, the rear portion of the cargo bed 6 is configured so that a portion corresponding to the balancer 7 is notched and opened in a U shape to prevent interference with the balancer 7 when the cargo bed 6 is rotated forward. The rear portion of the loading platform 6 is placed on the vehicle platform 2, and a predetermined gap S is formed between the upper surface of the vehicle platform 2 and the loading platform 6 due to the holding configuration of the stays 34, 34.

Numerals 35 and 35 are guide plates, which are attached to upper ends of the carrier frames 36 and 36 arranged on both sides of the lower surface of the carrier 6 and are hung down from the position corresponding to the mounting of the control device 5 of the chassis 2 to the rear side. By wrapping the lower end thereof with the side surface of the chassis 2, it is possible to close the gap S and prevent rainwater, washing water, etc. from entering the control device 5 and the like. Further, the guide plates 35, 35 are provided in substantially the same width as the chassis 2 to guide the chassis 2 when the loading platform 6 is opened and closed. A loading platform 6 located above the batteries 3 and 3 mounted on the chassis 2.
On the lower surface, hydrogen gas guide passages 9 are formed by extending guide plates 8, 8 extending in the width direction of the loading platform 6 in the front and rear direction, and both ends thereof are opened to a gap S. .

Reference numerals 37, 37 denote battery retainers, which are arranged in the front-rear direction near the center of the guide plates 8, 8. When moving the machine body, radio waves are transmitted from the wireless operation box to the receiving antenna 32 to drive and control the left and right traveling devices 1 and 1. Further, even when the machine body is moved while carrying out the stowage work by the balancer 7, it is not necessary to approach the chassis 2 and it is easy for one person to work by traveling by radio control. In the case where radio interference occurs due to radio interference or the like, the opening / closing lid 10 at the front of the chassis 2 is opened, and the remote control operation box 14 is taken out from the storage box 11 to carry out the operation. Also, when loading and unloading on trucks,
Since the balancer 7 is mounted on the rear part of the chassis 2 and the center of gravity of the vehicle is relatively rearward, it is safer to unload from the rear part from the loading front part. Even during this loading / unloading, if the remote control operation box 14 located at the front of the chassis 2 is used, it can be mounted very close to the driver's seat of the truck.

In addition, a breaker 12 for shutting off the power source in the case of an overcurrent and an outlet 13 for charging are installed in the storage box 11, and these devices, which are relatively frequently used, are stored in one storage box 11 in one place. In addition, it is possible to easily operate at a position that is easy to operate, and also to ensure waterproofness. Furthermore, by storing the operation box 14 for remote control in the storage box 11,
There is no need to step on the lead wire or the like with the traveling devices 1 and 1.

When carrying out a charging operation, the opening / closing lid 10 is opened, and a power plug is inserted into the charging outlet 13 in the storage box 11 to energize. At the time of this energizing work, a large amount of hydrogen gas is generated because the batteries 3 and 3 have a large capacity, but the hydrogen gas has a low specific gravity and floats upward and is guided by the front and rear guide plates 8 and 8 to an ignition source such as the control device 5. Is prevented from diffusing in the front-rear direction of the chassis 2 and is guided in the left-right direction of the luggage carrier 6 along the guide passage 9, and is discharged from the machine through the gap S at both ends thereof.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a plan view of a main part.

FIG. 3 is a front view of a main part.

FIG. 4 is a side sectional view of a main part.

FIG. 5 is a perspective view of a main part.

[Explanation of symbols]

 1 traveling device 2 chassis 3 battery 4 motor 5 controller 6 loading platform 7 balancer 8 guide plate 9 guide passage 10 opening / closing lid 11 storage box 12 breaker 13 charging outlet 14 remote control operation box

Claims (2)

[Claims] 1. A battery (3), a motor (4), a control device (5), etc. are housed and mounted in a box-shaped chassis (2) having left and right traveling devices (1), (1), and When the cargo bed (6) is installed on the chassis (2) and the balancer (7) is mounted on the cargo bed (6), the cargo bed is located on the lower surface of the cargo bed (6) corresponding to the mounting position of the battery (3). An electric self-propelled balancer having a hydrogen gas guide passage (9) extending in the width direction of (6) and having front and rear guide plates (8) and (8) and having both ends open to the outside of the machine. 2. A battery (3), a motor (4), a control device (5), etc. are housed and mounted in a box-shaped chassis (2) having traveling devices (1), (1) on the left and right, and In an electric self-propelled balancer in which a cargo bed (6) is installed on the chassis (2) and a balancer (7) is mounted on the cargo bed (6), one of front and rear surfaces of the box-shaped chassis (2) is provided. There is a storage box (11) inside without opening and closing lid (10),
An electric self-propelled balancer in which a breaker (12) required for maintenance and a charging outlet (13) are installed in the storage box (11) and a remote control operation box (14) can be stored.