JP2012076860A - Electric refuse collecting vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively use a vacant space of an electric refuse collecting vehicle and to easily inspect an electric storage device.SOLUTION: An electric storage device attaching bracket 30 for attaching an electric double layer capacitor 44 (electric storage device) is set between a pair of frame bodies 22 on a frame 21 for placing a refuse containing box, an inspection opening 34 for inspecting the electric double layer capacitor 44 from an upper side is formed on a bottom plate of the refuse containing box, and the inspection opening 34 is openably/closably covered with an inspection lid 35. The inspection lid 35 is positioned under the slanted part of a discharge plate when the discharge plate slidingly moving in the refuse containing box in the longitudinal direction is positioned at the forefront position.

Description

  The present invention relates to an electric waste collection vehicle for driving a dust loading device with electric power.

  2. Description of the Related Art Conventionally, an electric garbage collection vehicle that drives a dust loading device with electric power supplied from a storage battery in order to prevent generation of noise and exhaust gas is known (see, for example, Patent Document 1). In this electric garbage collection vehicle, storage batteries are stored in the storage box so as to overlap each other.

JP 2005-170580 A

  However, in a conventional electric garbage collection vehicle, electrical equipment such as an inverter, a hydraulic pump that generates power for driving the dust loading device, an electric motor that drives the hydraulic pump, and the like must be arranged in a narrow space. Then, the storage location of the power storage device is limited, and a sufficient number of power storage devices cannot be arranged, so that the time during which the engine can be stopped and driven only by the power storage device is limited.

  The present invention has been made in view of such a point, and an object of the present invention is to make effective use of an empty space of an electric dust collection vehicle and to easily check a power storage device. .

  In order to achieve the above object, in the present invention, the power storage device is arranged in a space in the frame below the dust container.

Specifically, in the first invention,
A frame having a pair of frame main bodies extending in the front-rear direction, a dust storage box placed on the frame, a discharge plate that slides back and forth inside the dust storage box, and a dust behind the dust storage box An electric dust collection vehicle including a charging box, a dust loading device disposed in the dust loading box, an electric motor that supplies power for driving the dust loading device, and a power storage device that supplies electric power to the electric motor Because
The discharge plate has an inclined portion inclined downward and backward,
Between the pair of frame main bodies, a power storage device mounting bracket to which the power storage device is mounted is provided,
An inspection opening for inspecting the power storage device from above is formed on the bottom plate of the dust container box,
The inspection opening is covered with an inspection lid so that it can be opened and closed.
The inspection lid is positioned below the inclined portion of the discharge plate when the discharge plate is in the foremost position.

  According to said structure, since an electrical storage apparatus can be arrange | positioned in the vacant space between a pair of flame | frame main bodies under a dust container box, charging capacity can be increased. Since the inspection lid is provided below the inclined portion of the discharge plate that moves back and forth in the dust box, the lower end of the inclined portion does not contact the inspection lid, and the discharge plate is shifted backward. Since the power storage device can be inspected from above by opening the inspection lid, the inspection work is easy.

In the second invention, in the first invention,
A waterproof packing is sandwiched between the inspection opening and the inspection lid, and the power storage device is covered with a waterproof sheet.

  According to said structure, the water | moisture content in a dust storage box does not flow into the electrical storage apparatus side by the waterproof packing between the inspection lid | cover and the inspection opening. In addition, since the power storage device is covered with the waterproof sheet, leakage due to moisture is prevented.

  As described above, according to the present invention, the power storage device is provided between the pair of frame main bodies, the inspection opening of the bottom plate of the dust container box is covered with the inspection lid, and the discharge plate slides on the cover. As a result, the empty space of the electric dust collection vehicle can be used effectively, and the power storage device can be easily inspected.

It is an enlarged side view showing a part of the electric double layer capacitor and its periphery in the electric dust collector according to the embodiment. It is a side view which shows an electric dust collection vehicle. It is an enlarged side view which shows a refuse loading apparatus. It is a block diagram which shows the drive system of a garbage collection vehicle. It is a hydraulic circuit diagram of a garbage truck. It is a top view which expands and shows an electric double layer capacitor and its periphery. It is the VII-VII sectional view taken on the line of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

-Structure of electric garbage truck-
2 and 3 show an electric dust collecting vehicle 1 according to an embodiment of the present invention, and a dust container 3 is provided on a frame 21 on a vehicle body 2 of the electric dust collecting vehicle 1. A cab 2 a is provided in front of the vehicle body 2. The rear opening 4 of the dust container 3 is provided with a dust input box 6 that is pivotally supported by an input box support pin 5 above it. The dust box 6 is rotatable about the input box support pin 5 by a rotating cylinder 9 (indicated by a two-dot chain line in FIG. 2) provided between the dust container 3 and the dust box 6. It is configured.

  A throwing port 7 is opened at the rear of the dust throwing box 6, and a dust loading device 20 is provided in the inside. The dust loading device 20 is for compressing and loading the dust 55 put into the dust throwing box 6 through the filling port 7 into the dust containing box 3.

  Specifically, as shown in FIG. 3, guide groove members 8 are laid on both side walls of the dust box 6 from the front upper part to the rear lower part so as to serve as a reinforcing frame. Between the left and right guide groove members 8, a sliding plate 10 that extends to its full width is slidably accommodated. Between the sliding plate support shaft 12 that protrudes outward from the side wall of the dust throwing box 6 and supports the sliding plate 10 and the lower part of the dust throwing box 6, the inclination direction of the guide groove member 8 is outside the dust throwing box 6. Is connected to the sliding cylinder 13. As shown in FIG. 2, the sliding cylinder 13 is provided between the side wall and the side cover 6a. The sliding plate 10 is reciprocated up and down along the guide groove member 8 by the expansion and contraction operation of the sliding cylinder 13. At the lower end of the sliding plate 10, a compression plate 15 that extends to the full width of the dust box 6 is supported so as to be swingable back and forth. A swing cylinder 14 is connected between a connecting portion 15 a protruding from the back surface of the compression plate 15 and a slide plate support shaft 12 provided at the upper back of the slide plate 10. The compression plate 15 is swung back and forth by the expansion and contraction operation.

  As shown in a partially broken view in FIG. 2, a discharge device 18 for discharging the dust in the dust container 3 is provided inside the dust container 3. Specifically, a discharge plate 17 is disposed in the dust container 3 so as to be slidable in the front-rear direction. The discharge plate 17 is a plate-like body that is formed in a size substantially the same as the horizontal width and vertical height of the dust storage box 3 and is curved in side view, and has an inclined portion 17a that is inclined downward from the middle of the upper and lower sides. For example, a synthetic resin plate is provided at the lower end of the inclined portion 17a so that dust on the surface of the bottom plate 3a of the dust container 3 is scraped off. The discharge plate 17 slides back and forth in the dust container 3 by the expansion and contraction operation of the discharge cylinder 16 connected from the front.

  A rectangular parallelepiped electrical component storage box 25 is provided on the vehicle body 2 between the cab 2 a and the dust storage box 3. The electrical component storage box 25 stores an inverter 45, an electric motor 46 as an electric motor, an automatic voltage regulator 43 that adjusts the voltage of a generator 42, which will be described later, and the like.

  As shown in FIG. 4, the electric dust collection vehicle 1 includes a transmission 41 that is driven by a vehicle engine 40. Further, the electric dust collection vehicle 1 includes a generator 42 that is driven by the vehicle engine 40. The electric power obtained by the generator 42 is configured to be able to supply electric power to the electric double layer capacitor 44 or the inverter 45 through the automatic voltage regulator 43 accommodated in the electrical component storage box 25. Although not described in detail, the electric dust collection vehicle 1 can perform so-called braking regeneration in which the generator 42 is driven by power during braking or the like and is stored in the electric double layer capacitor 44. The electric power from the generator 42 or the electric double layer capacitor 44 is adjusted by the inverter 45 and supplied to the electric motor 46.

  FIG. 5 shows a hydraulic circuit 61 of the hydraulic device 60. The hydraulic device 60 includes a hydraulic pump 47 that is driven by the electric motor 46. Further, for example, a hydraulic oil tank 62 in which hydraulic oil flowing through the hydraulic pump 47 is stored is provided below and behind the electrical component storage box 25. The hydraulic oil tank 62 and the hydraulic pump 47 are connected by a hydraulic pipe 64. The hydraulic oil in the hydraulic oil tank 62 is configured to be sucked up by the hydraulic pump 47 through the hydraulic pipe 64, distributed to the supply-side hydraulic pipe 61 a, and supplied to the control valve 63. Each cylinder 9, 13, 14, 16 is connected to a control valve 63 via a hydraulic pipe 61b. Accordingly, the switching of the expansion / contraction operation of each cylinder 9, 13, 14, 16 is controlled via the control valve 63 by the signal sent from the control device 48, or the operation is stopped. .

  By configuring in this way, the dust loading device 20 uses the high-pressure oil from the hydraulic pump 47 driven by the electric motor 46 to move the sliding plate 10 and the sliding plate 10 by the expansion / contraction operation of the sliding cylinder 13 and the swing cylinder 14. By operating the reversing, lowering, compressing and ascending as one cycle with the compression plate 15, the dust 55 put into the dust throwing box 6 through the throwing port 7 is loaded into the dust container 3.

  As shown in FIGS. 1, 6, and 7, in this embodiment, the electric double layer capacitor 44 as a power storage device is mounted between a pair of frame main bodies 22 that extend in the front-rear direction constituting the frame 21. . Specifically, a power storage device mounting bracket 30 that connects the pair of frame bodies 22 is provided between the pair of frame bodies 22. The power storage device mounting bracket 30 connects, for example, five left and right support portions 31 that connect the lower plates 22 a of the pair of frame main bodies 22, and four front and rear support portions 32 that are fixed on the five left and right support portions 31. And. The left and right support portions 31 and the front and rear support portions 33 are both made of angle steel, and the cross-sectional shape and the number thereof are not particularly limited. Further, a case bottom plate 38 is laid on the lower surface of the mounting bracket 30 to prevent water droplets from being attached to the electric double layer capacitor 44 even when rainwater is rolled up from below. For example, as shown in FIG. 7, the left and right support portions 31 are welded to the lower plate 22 a and the front and rear support portions 32 are fastened to the left and right support portions 31 with first bolts 71. The electric double layer capacitors 44 are fastened to the front and rear support portions 32 with second bolts 72.

  On the other hand, as shown in FIG. 6, a substantially rectangular inspection opening 34 for inspecting the electric double layer capacitor 44 is formed in the bottom plate 3 a of the dust container 3. The inspection opening 34 is covered so that it can be opened and closed by fastening a rectangular inspection lid 35 made of a steel plate or the like with a third bolt 73. In FIG. 6, the inspection lid 35 is omitted for easy viewing. As shown in FIG. 2, the inspection lid 35 is configured to be positioned below the inclined portion 17 a of the discharge plate 17 when the discharge plate 17 is in the foremost position.

  Between the inspection opening 34 and the inspection lid 35, a waterproof packing 36 made of rubber or the like having a rectangular frame shape is sandwiched. The four electric double layer capacitors 44 are covered with a waterproof sheet 37 made of a heat-resistant resin sheet or the like from above.

-Inspection method of electric double layer capacitor-
In order to check the electric double layer capacitor 44, first, the discharge plate 17 is moved backward.

  Next, the electric garbage collection vehicle 1 is completely stopped.

  Next, the inspection door in front of the dust container 3 (not shown) is opened to enter the dust container 3.

  Next, all the third bolts 73 that close the inspection lid 35 are removed, and the inspection lid 35 is removed. Then, since the inspection opening 34 can be seen from above, the waterproof sheet 37 is removed from the inspection opening 34, and the electric double layer capacitor 44 is inspected and replaced from above.

  After the inspection, the inspection lid 35 is closed again. Thus, inspection, replacement, etc. of the electric double layer capacitor 44 can be performed very easily.

  Since the lower end of the inclined portion 17a does not move above the closed inspection lid 35, even if there are irregularities such as bolts for the inspection lid 35, the operation of the discharge device 18 is not adversely affected. .

  Therefore, according to the electric garbage collection vehicle 1 concerning Embodiment 1, while the empty space of the electric dust collection vehicle 1 can be used effectively, the electric double layer capacitor 44 can be inspected easily.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above-described embodiment, the dust loading device 20 is of a compression type, but the dust 55 put into the dust box 6 is compressed by the cooperation of the rotation operation of the rotating plate and the swinging operation of the pushing plate. And it is good also as a rotary dust loading device loaded in the dust container 3. In this case as well, each hydraulic drive unit may be driven by high pressure hydraulic oil from the hydraulic pump 47.

  In the said embodiment, although the electrical storage apparatus was set as the electric double layer capacitor, it is not limited to this, A lead storage battery, a lithium ion secondary battery, a nickel hydrogen storage battery, etc. may be sufficient.

  In the above embodiment, the power supply means is the generator 42, but a power source such as an external power 51 (shown in FIG. 4) may also be used. In the above embodiment, the electric dust collection vehicle 1 is capable of regenerative braking, but regenerative braking is not necessarily required. In this case, the electric double layer capacitor 44 is charged by the generator 42 or the external power 51. do it.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

DESCRIPTION OF SYMBOLS 1 Electric dust collection vehicle 3 Dust storage box 3a Bottom plate 17 Discharge plate 17a Inclined part 20 Dust loading device 21 Frame 22 Frame body 22a Lower plate 30 Power storage device mounting bracket 34 Inspection opening 35 Inspection lid 36 Waterproof packing 37 Waterproof sheet 44 Electric double layer capacitor (power storage device)
46 Electric motor

Claims (2)

A frame having a pair of frame main bodies extending in the front-rear direction, a dust storage box placed on the frame, a discharge plate that slides back and forth inside the dust storage box, and a dust behind the dust storage box An electric dust collection vehicle including a charging box, a dust loading device disposed in the dust loading box, an electric motor that supplies power for driving the dust loading device, and a power storage device that supplies electric power to the electric motor Because
The discharge plate has an inclined portion inclined downward and backward,
Between the pair of frame main bodies, a power storage device mounting bracket to which the power storage device is mounted is provided,
An inspection opening for inspecting the power storage device from above is formed on the bottom plate of the dust container box,
The inspection opening is covered with an inspection lid so that it can be opened and closed.
The electric dust collecting vehicle, wherein the inspection lid is located below the inclined portion of the discharge plate when the discharge plate is in the foremost position. In the electric garbage truck according to claim 1,
An electric dust collecting vehicle, wherein a waterproof packing is sandwiched between the inspection opening and the inspection lid, and the power storage device is covered with a waterproof sheet.

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