JP3216360B2 - Filter dust removal device for road cleaning truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing dust adhering to a filter of a road cleaning vehicle.

[0002]

2. Description of the Related Art Conventionally, as this type of dust removing device, for example, Japanese Patent Application Laid-Open No. 3-146109 (first conventional example) and Japanese Patent Application Laid-Open No. 56-28735 (second conventional example) are disclosed. Technology is known. The device of the first conventional example is configured such that a filter cover is connected to a vehicle body, a vibration generator is directly attached to the filter cover, vibration is applied to the filter cover by the vibration generator, and vibration of the filter cover is transmitted to the filter via a vibration transmission member. It is configured to transmit and remove dust adhering to the filter. The device of the second conventional example mounts a vibration plate on a vehicle body, directly installs a vibration generator on the vibration plate in the installation space of the filter, and transmits vibration of the vibration generator to the filter via the vibration plate. It is configured as follows.

[0003]

However, according to the dust removing device of the first conventional example, since the vibration generator is installed directly on the filter cover, the vibration is transmitted to the vehicle body via the filter cover, and the vehicle body is removed. In addition to generating large noise due to resonance, there is a problem that the vibration energy is attenuated and the dust removal efficiency of the filter is reduced, and there is also a disadvantage that the filter cover is easily damaged by vibration. The dust remover of the second conventional example also has the same problems as the first conventional example because the vibration generator is installed directly on the vibration plate.In addition, the vibration generator is installed in the filter installation space. Since the vibration generator is provided, there is also a problem that the vibration generator is likely to be broken down by dust passing through the filter.

Accordingly, an object of the present invention is to suppress the propagation of vibrations to the vehicle body, reduce noise and improve dust removal efficiency, and protect the vibration generator from dust.
It is an object of the present invention to provide a dust removing device for a road cleaning vehicle that can improve its life.

[0005]

In order to solve the above-mentioned problems, a dust removing apparatus according to the present invention has a filter mounted on a vehicle body of a road cleaning car, and a vibration generator is mounted on a vehicle body near the filter via a vibration isolating member. It is installed and provided with a vibration transmitting member between the vibration generator and the filter.

Further, in the dust removing device according to the present invention, a partition plate for partitioning a filter installation space and a vibration generator installation space is provided in a vehicle body, and a hole through which a part of a vibration transmitting member is inserted is provided in the partition plate. It is formed and formed.

[0007]

According to the dust removing device of the present invention, the vibration isolating member makes it difficult for the vibration of the vibration generator to be transmitted to the vehicle body, while the vibration transmitting member efficiently transmits the vibration of the vibration generator to the filter. Therefore, noise can be suppressed, the efficiency of removing dust from the filter can be improved, and device damage due to vibration can be prevented.

Further, since the installation space of the vibration generator is separated from the installation space of the filter by the partition plate, the vibration generator is installed in a clean place to protect it from dust, to improve its life, and to improve the life of the apparatus. Can be operated for a long time without failure. Moreover,
Since the vibration transmitting member is inserted into the hole of the partition plate, it is possible to suppress the propagation of vibration to the partition plate and the noise caused thereby.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the road cleaning vehicle of this embodiment includes a driving wheel 2, a driven wheel 3, a side brush 4, and a main brush 5 at a lower portion of a vehicle body 1, and a steering handle 6 at a rear portion of the vehicle body 1. And the hopper 7, as is well known, configured to sweep dust on the road surface R toward the center in the vehicle width direction by the side brush 4, sweep it upward by the main brush 5, and collect the dust in the hopper 7. ing.

A filter mounting plate 1a is obliquely mounted inside the vehicle body 1 so as to cover the hopper 7 from above. A rectangular opening 1b is formed in the mounting plate 1a, and an installation space A for the filter 8 is formed below the opening 1b. A filter 8 is detachably attached to the lower side of the attachment plate 1a so as to cover the opening 1b.
Above the opening 1b of the mounting plate 1a, a partition plate 12 for partitioning the intake chamber B is provided integrally with the mounting plate 1a, and above the partition plate 12, an installation space C for a vibration generator 9 described later is formed. Have been. The partition plate 12 partitions the installation space C from the installation space A and the intake chamber B in an airtight manner. The intake chamber B is connected to a blower 11 through ducts 10 and 10a, and sucks in polluted air from the main brush 5 through a filter 8 to remove fine dust in the air. I have.

As shown in FIG. 2, the filter 8 accommodates a corrugated filter paper 14 inside a flat rectangular box-shaped case 13 and covers the entire upper surface thereof with a metal perforated plate 15. It is attached to the lower surface of the attachment plate 1a via a sealing member 16 surrounding the portion 1b. As shown in FIGS. 2 to 4, the vibration generator 9 is configured by providing an eccentric weight 19 on an output shaft 18 of a motor 17, and via a pair of inner and outer brackets 20 and 21 and four anti-vibration rubbers 22. Partition plate 12
It is supported on the upper surface.

As shown in FIGS. 3 and 4, each of the brackets 20 and 21 is formed in a U-shape. The outer bracket 20 is fixed to the partition plate 12 by bolts 23 with the rubber plate 40 interposed therebetween. The anti-vibration rubber 22
And is supported by the outer bracket 20 through the outer bracket 20. The motor 17 is mounted on the upright plate 2 of the inner bracket 21 by bolts 24.
5 with the rotation of the eccentric weight 19,
Although the inner bracket 21 vibrates integrally with the motor 17,
Vibration propagation from the inner bracket 21 to the outer bracket 20 can be suppressed by the action of the vibration isolating rubber 22.

A screw rod 27 is supported on a horizontal plate 26 of the inner bracket 21 by a nut 28 so that the position thereof can be adjusted up and down, and a lower end of the screw rod 27 is a vibrating plate that abuts or joins the perforated plate 15 of the filter 8. A vibration transmission member that transmits the vibration of the vibration generator 9 to the filter 8 is configured by the inner bracket 21, the screw rod 27, and the vibration plate 29. In addition, the outer bracket 20 and the partition plate 1
2, a hole 30 through which the screw rod 27 is inserted in a non-contact state,
31 are formed so as not to transmit the vibration of the screw rod 27 to the partition plate 12. Rubber plate 40
Is formed with a hole 41 corresponding to the outer diameter of the screw rod 27, so that air is not sucked from the hole 41 and vibration of the screw rod 27 is not transmitted to the partition plate 12.

According to the dust removing device of the present embodiment configured as described above, the anti-vibration rubber 22 makes it difficult for the vibration of the vibration generator 9 to be transmitted to the partition plate 12 of the vehicle body 1, while the inner bracket 21, The screw rod 27 and the vibration plate 29 efficiently transmit the vibration of the vibration generator 9 to the perforated plate 15 of the filter 8. Therefore, noise associated with the resonance of the vehicle body 1 can be effectively suppressed, and the working environment can be improved. In the filter 8, the perforated plate 15 diffuses vibrations to the entire area of the filter paper 14, so that dust attached to each part of the filter paper 14 can be efficiently removed, and as a result, a relatively small vibration generator 9 is used. Thus, the entire apparatus can be made compact. In addition, since the vibration propagation to the outer bracket 20 and the partition plate 12 is suppressed by the vibration-proof rubber 22, there is an advantage that breakage of these components due to vibration can be prevented beforehand.

Further, since the installation space C of the vibration generator 9 is separated from the installation space A of the filter 8 by the partition plate 12, the vibration generator 9 is installed in a clean place to protect it from dust and to extend its life. The device can be operated for a long time without failure. Moreover, since the screw rod 27 is inserted through the hole 31 formed in the partition plate 12 in a non-contact manner, the partition plate 1
2, and the generation of noise due to the vibration can be effectively suppressed.

The present invention is not limited to the above embodiment, but may be embodied by appropriately changing the shape and configuration of each part without departing from the spirit of the present invention, as will be described below. Is also possible. (1) Install the filter horizontally or vertically, and change the installation location of the vibration generator accordingly. (2) The filter should be made of sheet-shaped filter paper or net. (3) The perforated plate is omitted from the filter, and the vibrating plate of the vibration generator is formed to have a size capable of covering the entire filter paper, and this has the function of the perforated plate. (4) A coil spring, a leaf spring, or the like is used as a vibration isolation member. (5) The present invention is applied to a road sweeper equipped with a driver's seat. (6) The present invention is applied to an air vacuum type road cleaning vehicle.

[0017]

As described in detail above, according to the present invention, the vibration damping member suppresses the propagation of vibration from the vibration generator to the vehicle body, and the vibration transmission member efficiently transmits the vibration of the vibration generator to the filter. Since the power is transmitted well, there is an excellent effect that noise can be suppressed, dust removal efficiency of the filter can be improved, and device damage due to vibration can be prevented.

Further, according to the present invention, since the installation space of the vibration generator is separated from the installation space of the filter by the partition plate, the vibration generator can be protected from dust, its life can be improved, and the vibration transmission member can be improved. Since it is inserted into the hole of the partition plate, there is an effect that the propagation of vibration to the partition plate and the resulting noise can be suppressed.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of a main part of a road cleaning truck showing one embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a dust removing device of the road cleaning vehicle of FIG. 1;

FIG. 3 is a plan view of the dust removing device of FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 3;

[Explanation of symbols]

1. Body, 5. Main brush, 8. Filter, 9
..Vibration generators, 12 partition walls, 15 perforated plates, 2
0 ... Outer bracket, 21 ... Inner bracket, 22
..Vibration isolation rubber, 27 .. Screw rod, 29 .. Vibration plate, 31
..Hole.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E01H 1/08 B01D 46/52 ZAB

Claims (1)

(57) [Claims] 1. A filter is mounted on a vehicle body of a road cleaning vehicle, a vibration generator is installed on a vehicle body near the filter via a vibration isolating member, and a vibration transmission member is provided between the vibration generator and the filter. A filter for a road cleaning vehicle, characterized in that a partition plate for partitioning the installation space for the filter and the installation space for the vibration generator is provided, and a hole through which a part of the vibration transmitting member is inserted is formed in the partition plate. Dust removal device.